An odd fix for GCC 7

Summary:
There are two statuses in DoCompactionWork could be hidden.
This path fix this bug.

This seems to be a bug since CompactionFilterV2 is introduced:
https://github.com/facebook/rocksdb/blame/3.6.fb/db/db_impl.cc#L3294

Test Plan: make

Reviewers: nkg-, igor, sdong

Reviewed By: igor, sdong

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D28989

.arcconfig

@@ -3,15 +3,8 @@
   "conduit_uri" : "https://reviews.facebook.net/",
   "copyright_holder" : "Facebook",
   "load" : [
-    "arcanist_util"
+    "linters"
   ],
   "lint.engine" : "FacebookFbcodeLintEngine",
-  "lint.engine.single.linter" : "FbcodeCppLinter",
-  "unit.engine" : "FacebookFbcodeUnitTestEngine",
-  "arcanist_configuration" : "FacebookArcanistConfiguration",
-  "base" : "git:HEAD^, hg:.^",
-  "git.default-relative-commit" : "HEAD^",
-  "git:arc.feature.start.default" : "origin/master",
-  "arc.feature.start.default" : "master",
-  "history.immutable" : false
+  "lint.engine.single.linter" : "FbcodeCppLinter"
 }

.gitignore

@@ -1,5 +1,5 @@
 TARGETS
-make_config.mk
+build_config.mk
 
 *.a
 *.arc
@@ -20,14 +20,6 @@ make_config.mk
 *.d-e
 *.o-*
 *.swp
-*~
-*.vcxproj
-*.vcxproj.filters
-*.sln
-*.cmake
-CMakeCache.txt
-CMakeFiles/
-build/
 
 ldb
 manifest_dump
@@ -38,29 +30,11 @@ coverage/COVERAGE_REPORT
 .gdbhistory
 package/
 .phutil_module_cache
-unity.a
 tags
-rocksdb_dump
-rocksdb_undump
-db_test2
-
-java/out
-java/target
-java/test-libs
 java/*.log
 java/include/org_rocksdb_*.h
-
-.idea/
-*.iml
-
-rocksdb.cc
-rocksdb.h
 unity.cc
 java/crossbuild/.vagrant
 .vagrant/
 java/**.asc
 java/javadoc
-
-scan_build_report/
-t
-LOG

.travis.yml

@@ -1,43 +1,19 @@
-sudo: false
 language: cpp
-
-matrix:
-  include:
-    - os: linux
-      compiler: clang
-      env: COMPILER=clang++-3.6
-      addons:
-         apt:
-            sources: ['ubuntu-toolchain-r-test', 'llvm-toolchain-precise-3.6']
-            packages: ['clang-3.6', 'clang-format-3.6', 'zlib1g-dev', 'libbz2-dev', 'libsnappy-dev', 'curl']
-    - os: osx
-      compiler: clang
-
-install:
-  # Build gflags
-  # TODO(noetzli): Remove when gflags available through Travis
-  - pushd /tmp/ && curl -L https://github.com/gflags/gflags/archive/v2.1.2.tar.gz -o gflags.tar.gz && tar xfz gflags.tar.gz && cd gflags-2.1.2 && cmake . && make && popd
-  # Download clang-format-diff.py to check source code formatting
-  - pushd /tmp/ && curl -L http://llvm.org/svn/llvm-project/cfe/trunk/tools/clang-format/clang-format-diff.py -o clang-format-diff.py && chmod +x clang-format-diff.py && popd
-
-before_script:
-  # Add gflags to include/library paths
-  # TODO(noetzli): Remove when gflags available through Travis
-  - export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/tmp/gflags-2.1.2/lib"
-  - export LIBRARY_PATH="$LIBRARY_PATH:/tmp/gflags-2.1.2/lib"
-  - export CPLUS_INCLUDE_PATH="$CPLUS_INCLUDE_PATH:/tmp/gflags-2.1.2/include"
-  - if [ -n "${COMPILER}" ]; then CXX=${COMPILER}; fi
-  - if [[ "${TRAVIS_OS_NAME}" == 'osx' ]]; then brew install gflags snappy; fi
-  - ulimit -n 2000 || true
-
+compiler: gcc
+before_install:
+# As of this writing (10 May 2014) the Travis build environment is Ubuntu 12.04,
+# which needs the following ugly dependency incantations to build RocksDB:
+ - sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
+ - sudo apt-get update -qq
+ - sudo apt-get install -y -qq gcc-4.8 g++-4.8 zlib1g-dev libbz2-dev libsnappy-dev libjemalloc-dev
+ - sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.8 50
+ - sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.8 50
+ - wget https://gflags.googlecode.com/files/libgflags0_2.0-1_amd64.deb
+ - sudo dpkg -i libgflags0_2.0-1_amd64.deb
+ - wget https://gflags.googlecode.com/files/libgflags-dev_2.0-1_amd64.deb
+ - sudo dpkg -i libgflags-dev_2.0-1_amd64.deb
 # Lousy hack to disable use and testing of fallocate, which doesn't behave quite
 # as EnvPosixTest::AllocateTest expects within the Travis OpenVZ environment.
-script:
-  - if [[ "${TRAVIS_OS_NAME}" == 'linux' ]]; then OPT=-DTRAVIS CLANG_FORMAT_DIFF=/tmp/clang-format-diff.py make format || true; fi
-  - OPT=-DTRAVIS V=1 make -j4 check && OPT=-DTRAVIS V=1 make clean jclean rocksdbjava jtest && make clean && OPT="-DTRAVIS -DROCKSDB_LITE" V=1 make -j4 static_lib
-
+script: OPT=-DTRAVIS make unity  && OPT=-DTRAVIS make check -j8
 notifications:
-    email:
-      - leveldb@fb.com
-    webhooks:
-      - https://buildtimetrend.herokuapp.com/travis
+    email: false

CMakeLists.txt

@@ -1,468 +0,0 @@
-# This cmake build is for Windows 64-bit only.
-#
-# Prerequisites:
-#     You must have Visual Studio 2013 Update 4 installed. Start the Developer Command Prompt window that is a part of Visual Studio installation.
-#     Run the build commands from within the Developer Command Prompt window to have paths to the compiler and runtime libraries set.
-#     You must have git.exe in your %PATH% environment variable.
-#
-# To build Rocksdb for Windows is as easy as 1-2-3-4-5:
-#
-# 1. Update paths to third-party libraries in thirdparty.inc file
-# 2. Create a new directory for build artifacts
-#        mkdir build
-#        cd build
-# 3. Run cmake to generate project files for Windows, add more options to enable required third-party libraries.
-#    See thirdparty.inc for more information.
-#        sample command: cmake -G "Visual Studio 12 Win64" -DGFLAGS=1 -DSNAPPY=1 -DJEMALLOC=1 -DJNI=1 ..
-#        OR for VS Studio 15 cmake -G "Visual Studio 14 Win64" -DGFLAGS=1 -DSNAPPY=1 -DJEMALLOC=1 -DJNI=1 ..
-# 4. Then build the project in debug mode (you may want to add /m[:<N>] flag to run msbuild in <N> parallel threads
-#                                          or simply /m ot use all avail cores)
-#        msbuild rocksdb.sln
-#
-#        rocksdb.sln build features exclusions of test only code in Release. If you build ALL_BUILD then everything
-#        will be attempted but test only code does not build in Release mode.
-#
-# 5. And release mode (/m[:<N>] is also supported)
-#        msbuild rocksdb.sln /p:Configuration=Release
-#
-
-cmake_minimum_required(VERSION 2.6)
-project(rocksdb)
-
-include(${CMAKE_CURRENT_SOURCE_DIR}/thirdparty.inc)
-execute_process(COMMAND powershell -Command "Get-Date -format MM_dd_yyyy" OUTPUT_VARIABLE DATE)
-execute_process(COMMAND powershell -Command "Get-Date -format HH:mm:ss" OUTPUT_VARIABLE TIME)
-string(REGEX REPLACE "(..)_(..)_..(..).*" "\\1/\\2/\\3" DATE ${DATE})
-string(REGEX REPLACE "(..):(.....).*" " \\1:\\2" TIME ${TIME})
-string(CONCAT GIT_DATE_TIME ${DATE} ${TIME})
-
-find_package(Git)
-
-if (GIT_FOUND AND EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/.git")
-    execute_process(COMMAND $ENV{COMSPEC} /C ${GIT_EXECUTABLE} -C ${CMAKE_CURRENT_SOURCE_DIR} rev-parse HEAD OUTPUT_VARIABLE GIT_SHA)
-else()
-    set(GIT_SHA 0)
-endif()
-
-string(REGEX REPLACE "[^0-9a-f]+" "" GIT_SHA ${GIT_SHA})
-
-set(BUILD_VERSION_CC ${CMAKE_CURRENT_SOURCE_DIR}/util/build_version.cc)
-
-add_custom_command(OUTPUT ${BUILD_VERSION_CC}
-    COMMAND echo "#include \"build_version.h\"" > ${BUILD_VERSION_CC}
-    COMMAND echo "const char* rocksdb_build_git_sha = \"rocksdb_build_git_sha:${GIT_SHA}\";" >> ${BUILD_VERSION_CC}
-    COMMAND echo "const char* rocksdb_build_git_datetime = \"rocksdb_build_git_datetime:${GIT_DATE_TIME}\";" >> ${BUILD_VERSION_CC}
-    COMMAND echo const char* rocksdb_build_compile_date = __DATE__\; >> ${BUILD_VERSION_CC}
-)
-
-add_custom_target(GenerateBuildVersion DEPENDS ${BUILD_VERSION_CC})
-
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /Zi /nologo  /EHsc /GS /Gd /GR /GF /fp:precise /Zc:wchar_t /Zc:forScope /errorReport:queue")
-
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /FC /d2Zi+ /W3 /WX /wd4127 /wd4800 /wd4996 /wd4351")
-
-# Used to run CI build and tests so we can run faster
-set(OPTIMIZE_DEBUG_DEFAULT 0)        # Debug build is unoptimized by default use -DOPTDBG=1 to optimize
-
-if(DEFINED OPTDBG)
-   set(OPTIMIZE_DEBUG ${OPTDBG})
-else()
-   set(OPTIMIZE_DEBUG ${OPTIMIZE_DEBUG_DEFAULT})
-endif()
-
-if((${OPTIMIZE_DEBUG} EQUAL 1))
-   message(STATUS "Debug optimization is enabled")
-   set(CMAKE_CXX_FLAGS_DEBUG "/Oxt /MDd")
-else()
-   set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /Od /RTC1 /Gm /MDd")
-endif()
-
-set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /Oxt /Zp8 /Gm- /Gy /MD")
-
-set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /DEBUG")
-set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /DEBUG")
-
-add_definitions(-DWIN32 -DOS_WIN -D_MBCS -DWIN64)
-
-include_directories(${PROJECT_SOURCE_DIR})
-include_directories(${PROJECT_SOURCE_DIR}/include)
-include_directories(${PROJECT_SOURCE_DIR}/third-party/gtest-1.7.0/fused-src)
-
-set(ROCKSDB_LIBS rocksdblib${ARTIFACT_SUFFIX})
-set(THIRDPARTY_LIBS ${THIRDPARTY_LIBS} gtest)
-set(SYSTEM_LIBS Shlwapi.lib Rpcrt4.lib)
-
-set(LIBS ${ROCKSDB_LIBS} ${THIRDPARTY_LIBS} ${SYSTEM_LIBS})
-
-add_subdirectory(third-party/gtest-1.7.0/fused-src/gtest)
-
-# Main library source code
-set(SOURCES
-        db/auto_roll_logger.cc
-        db/builder.cc
-        db/c.cc
-        db/column_family.cc
-        db/compacted_db_impl.cc
-        db/compaction.cc
-        db/compaction_iterator.cc
-        db/compaction_job.cc
-        db/compaction_picker.cc
-        db/convenience.cc
-        db/dbformat.cc
-        db/db_filesnapshot.cc
-        db/db_impl.cc
-        db/db_impl_debug.cc
-        db/db_impl_experimental.cc
-        db/db_impl_readonly.cc
-        db/db_info_dumper.cc
-        db/db_iter.cc
-        db/event_helpers.cc
-        db/experimental.cc
-        db/filename.cc
-        db/file_indexer.cc
-        db/flush_job.cc
-        db/flush_scheduler.cc
-        db/forward_iterator.cc
-        db/internal_stats.cc
-        db/log_reader.cc
-        db/log_writer.cc
-        db/managed_iterator.cc
-        db/memtable.cc
-        db/memtable_allocator.cc
-        db/memtable_list.cc
-        db/merge_helper.cc
-        db/merge_operator.cc
-        db/repair.cc
-        db/slice.cc
-        db/snapshot_impl.cc
-        db/table_cache.cc
-        db/table_properties_collector.cc
-        db/transaction_log_impl.cc
-        db/version_builder.cc
-        db/version_edit.cc
-        db/version_set.cc
-        db/wal_manager.cc
-        db/write_batch.cc
-        db/write_batch_base.cc
-        db/write_controller.cc
-        db/write_thread.cc
-        db/xfunc_test_points.cc
-        memtable/hash_cuckoo_rep.cc
-        memtable/hash_linklist_rep.cc
-        memtable/hash_skiplist_rep.cc
-        memtable/skiplistrep.cc
-        memtable/vectorrep.cc
-        port/stack_trace.cc
-        port/win/env_win.cc
-        port/win/port_win.cc
-        port/win/win_logger.cc
-        table/adaptive_table_factory.cc
-        table/block.cc
-        table/block_based_filter_block.cc
-        table/block_based_table_builder.cc
-        table/block_based_table_factory.cc
-        table/block_based_table_reader.cc
-        table/block_builder.cc
-        table/block_hash_index.cc
-        table/block_prefix_index.cc
-        table/bloom_block.cc
-        table/cuckoo_table_builder.cc
-        table/cuckoo_table_factory.cc
-        table/cuckoo_table_reader.cc
-        table/flush_block_policy.cc
-        table/format.cc
-        table/full_filter_block.cc
-        table/get_context.cc
-        table/iterator.cc
-        table/merger.cc
-        table/sst_file_writer.cc
-        table/meta_blocks.cc
-        table/plain_table_builder.cc
-        table/plain_table_factory.cc
-        table/plain_table_index.cc
-        table/plain_table_key_coding.cc
-        table/plain_table_reader.cc
-        table/table_properties.cc
-        table/two_level_iterator.cc
-        tools/sst_dump_tool.cc
-        tools/db_bench_tool.cc
-        tools/dump/db_dump_tool.cc
-        util/arena.cc
-        util/bloom.cc
-        util/build_version.cc
-        util/cache.cc
-        util/coding.cc
-        util/compaction_job_stats_impl.cc
-        util/comparator.cc
-        util/concurrent_arena.cc
-        util/crc32c.cc
-        util/delete_scheduler.cc
-        util/dynamic_bloom.cc
-        util/env.cc
-        util/env_hdfs.cc
-        util/event_logger.cc
-        util/file_util.cc
-        util/file_reader_writer.cc
-        util/sst_file_manager_impl.cc
-        util/filter_policy.cc
-        util/hash.cc
-        util/histogram.cc
-        util/instrumented_mutex.cc
-        util/iostats_context.cc
-        tools/ldb_cmd.cc
-        tools/ldb_tool.cc
-        util/logging.cc
-        util/log_buffer.cc
-        util/memenv.cc
-        util/murmurhash.cc
-        util/mutable_cf_options.cc
-        util/options.cc
-        util/options_builder.cc
-        util/options_helper.cc
-        util/options_parser.cc
-        util/options_sanity_check.cc
-        util/perf_context.cc
-        util/perf_level.cc
-        util/random.cc
-        util/rate_limiter.cc
-        util/slice.cc
-        util/statistics.cc
-        util/status.cc
-        util/status_message.cc
-        util/string_util.cc
-        util/sync_point.cc
-        util/testharness.cc
-        util/testutil.cc
-        util/thread_local.cc
-        util/thread_status_impl.cc
-        util/thread_status_updater.cc
-        util/thread_status_util.cc
-        util/thread_status_util_debug.cc
-        util/xfunc.cc
-        util/xxhash.cc
-        utilities/backupable/backupable_db.cc
-        utilities/checkpoint/checkpoint.cc
-        utilities/compaction_filters/remove_emptyvalue_compactionfilter.cc
-        utilities/document/document_db.cc
-        utilities/document/json_document.cc
-        utilities/document/json_document_builder.cc
-        utilities/env_mirror.cc
-        utilities/flashcache/flashcache.cc
-        utilities/geodb/geodb_impl.cc
-        utilities/leveldb_options/leveldb_options.cc
-        utilities/memory/memory_util.cc
-        utilities/merge_operators/string_append/stringappend.cc
-        utilities/merge_operators/string_append/stringappend2.cc
-        utilities/merge_operators/put.cc
-        utilities/merge_operators/uint64add.cc
-        utilities/options/options_util.cc
-        utilities/redis/redis_lists.cc
-        utilities/spatialdb/spatial_db.cc
-        utilities/table_properties_collectors/compact_on_deletion_collector.cc
-        utilities/transactions/optimistic_transaction_impl.cc
-        utilities/transactions/optimistic_transaction_db_impl.cc
-        utilities/transactions/transaction_base.cc
-        utilities/transactions/transaction_impl.cc
-        utilities/transactions/transaction_db_impl.cc
-        utilities/transactions/transaction_db_mutex_impl.cc
-        utilities/transactions/transaction_lock_mgr.cc
-        utilities/transactions/transaction_util.cc
-        utilities/ttl/db_ttl_impl.cc
-        utilities/write_batch_with_index/write_batch_with_index.cc
-        utilities/write_batch_with_index/write_batch_with_index_internal.cc
-)
-
-# For test util library that is build only in DEBUG mode
-# and linked to tests. Add test only code that is not #ifdefed for Release here.
-set(TESTUTIL_SOURCE
-    db/db_test_util.cc
-    table/mock_table.cc
-    util/mock_env.cc
-    util/thread_status_updater_debug.cc
-)
-
-add_library(rocksdblib${ARTIFACT_SUFFIX} ${SOURCES})
-set_target_properties(rocksdblib${ARTIFACT_SUFFIX} PROPERTIES COMPILE_FLAGS "/Fd${CMAKE_CFG_INTDIR}/rocksdblib${ARTIFACT_SUFFIX}.pdb")
-add_dependencies(rocksdblib${ARTIFACT_SUFFIX} GenerateBuildVersion)
-
-add_library(rocksdb${ARTIFACT_SUFFIX} SHARED ${SOURCES})
-set_target_properties(rocksdb${ARTIFACT_SUFFIX} PROPERTIES COMPILE_FLAGS "-DROCKSDB_DLL -DROCKSDB_LIBRARY_EXPORTS /Fd${CMAKE_CFG_INTDIR}/rocksdb${ARTIFACT_SUFFIX}.pdb")
-add_dependencies(rocksdb${ARTIFACT_SUFFIX} GenerateBuildVersion)
-target_link_libraries(rocksdb${ARTIFACT_SUFFIX} ${LIBS})
-
-if (DEFINED JNI)
-  if (${JNI} EQUAL 1)
-    message(STATUS "JNI library is enabled")
-    add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/java)
-  else()
-    message(STATUS "JNI library is disabled")
-  endif()
-else()
-  message(STATUS "JNI library is disabled")
-endif()
-
-set(APPS
-        tools/db_bench.cc
-        db/memtablerep_bench.cc
-        table/table_reader_bench.cc
-        tools/db_stress.cc
-        tools/write_stress.cc
-        tools/db_repl_stress.cc
-        tools/sst_dump.cc
-        tools/dump/rocksdb_dump.cc
-        tools/dump/rocksdb_undump.cc
-        util/cache_bench.cc
-)
-
-set(C_TESTS db/c_test.c)
-
-set(TESTS
-        db/auto_roll_logger_test.cc
-        db/column_family_test.cc
-        db/compact_files_test.cc
-        db/compaction_iterator_test.cc
-        db/compaction_job_test.cc
-        db/compaction_job_stats_test.cc
-        db/compaction_picker_test.cc
-        db/comparator_db_test.cc
-        db/corruption_test.cc
-        db/cuckoo_table_db_test.cc
-        db/db_compaction_filter_test.cc
-        db/db_compaction_test.cc
-        db/db_dynamic_level_test.cc
-        db/db_inplace_update_test.cc
-        db/db_iter_test.cc
-        db/db_log_iter_test.cc
-        db/db_properties_test.cc
-        db/db_table_properties_test.cc
-        db/db_tailing_iter_test.cc
-        db/db_test.cc
-        db/db_test2.cc
-        db/db_block_cache_test.cc
-        db/db_universal_compaction_test.cc
-        db/db_wal_test.cc
-        db/dbformat_test.cc
-        db/deletefile_test.cc
-        db/fault_injection_test.cc
-        db/file_indexer_test.cc
-        db/filename_test.cc
-        db/flush_job_test.cc
-        db/inlineskiplist_test.cc
-        db/listener_test.cc
-        db/log_test.cc
-        db/manual_compaction_test.cc
-        db/memtable_list_test.cc
-        db/merge_test.cc
-        db/merge_helper_test.cc
-        db/options_file_test.cc
-        db/perf_context_test.cc
-        db/plain_table_db_test.cc
-        db/prefix_test.cc
-        db/skiplist_test.cc
-        db/table_properties_collector_test.cc
-        db/version_builder_test.cc
-        db/version_edit_test.cc
-        db/version_set_test.cc
-        db/wal_manager_test.cc
-        db/write_batch_test.cc
-        db/write_callback_test.cc
-        db/write_controller_test.cc
-        table/block_based_filter_block_test.cc
-        table/block_hash_index_test.cc
-        table/block_test.cc
-        table/cuckoo_table_builder_test.cc
-        table/cuckoo_table_reader_test.cc
-        table/full_filter_block_test.cc
-        table/merger_test.cc
-        table/table_test.cc
-        tools/db_sanity_test.cc
-        tools/ldb_cmd_test.cc
-        tools/reduce_levels_test.cc
-        tools/sst_dump_test.cc
-        util/arena_test.cc
-        util/autovector_test.cc
-        util/bloom_test.cc
-        util/cache_test.cc
-        util/coding_test.cc
-        util/crc32c_test.cc
-        util/delete_scheduler_test.cc
-        util/dynamic_bloom_test.cc
-        util/env_test.cc
-        util/event_logger_test.cc
-        util/filelock_test.cc
-        util/file_reader_writer_test.cc
-        util/heap_test.cc
-        util/histogram_test.cc
-        util/iostats_context_test.cc
-        util/memenv_test.cc
-        util/mock_env_test.cc
-        util/options_test.cc
-        util/rate_limiter_test.cc
-        util/slice_transform_test.cc
-        util/thread_list_test.cc
-        util/thread_local_test.cc
-        utilities/backupable/backupable_db_test.cc
-        utilities/checkpoint/checkpoint_test.cc
-        utilities/document/document_db_test.cc
-        utilities/document/json_document_test.cc
-        utilities/geodb/geodb_test.cc
-        utilities/memory/memory_test.cc
-        utilities/merge_operators/string_append/stringappend_test.cc
-        utilities/options/options_util_test.cc
-        utilities/redis/redis_lists_test.cc
-        utilities/spatialdb/spatial_db_test.cc
-        utilities/table_properties_collectors/compact_on_deletion_collector_test.cc
-        utilities/transactions/optimistic_transaction_test.cc
-        utilities/transactions/transaction_test.cc
-        utilities/ttl/ttl_test.cc
-        utilities/write_batch_with_index/write_batch_with_index_test.cc
-)
-
-set(EXES ${APPS})
-
-foreach(sourcefile ${EXES})
-    string(REPLACE ".cc" "" exename ${sourcefile})
-    string(REGEX REPLACE "^((.+)/)+" "" exename ${exename})
-    add_executable(${exename}${ARTIFACT_SUFFIX} ${sourcefile})
-    target_link_libraries(${exename}${ARTIFACT_SUFFIX} ${LIBS})
-endforeach(sourcefile ${EXES})
-
-# test utilities are only build in debug
-set(TESTUTILLIB testutillib${ARTIFACT_SUFFIX})
-add_library(${TESTUTILLIB} STATIC ${TESTUTIL_SOURCE})
-set_target_properties(${TESTUTILLIB} PROPERTIES COMPILE_FLAGS "/Fd${CMAKE_CFG_INTDIR}/testutillib${ARTIFACT_SUFFIX}.pdb")
-set_target_properties(${TESTUTILLIB}
-      PROPERTIES EXCLUDE_FROM_DEFAULT_BUILD_RELEASE 1
-      EXCLUDE_FROM_DEFAULT_BUILD_MINRELEASE 1
-      EXCLUDE_FROM_DEFAULT_BUILD_RELWITHDEBINFO 1
-      )
-
-# Tests are excluded from Release builds
-set(TEST_EXES ${TESTS})
-
-foreach(sourcefile ${TEST_EXES})
-    string(REPLACE ".cc" "" exename ${sourcefile})
-    string(REGEX REPLACE "^((.+)/)+" "" exename ${exename})
-    add_executable(${exename}${ARTIFACT_SUFFIX} ${sourcefile})
-    set_target_properties(${exename}${ARTIFACT_SUFFIX}
-      PROPERTIES EXCLUDE_FROM_DEFAULT_BUILD_RELEASE 1
-      EXCLUDE_FROM_DEFAULT_BUILD_MINRELEASE 1
-      EXCLUDE_FROM_DEFAULT_BUILD_RELWITHDEBINFO 1
-      )
-    target_link_libraries(${exename}${ARTIFACT_SUFFIX} ${LIBS} testutillib${ARTIFACT_SUFFIX})
-endforeach(sourcefile ${TEST_EXES})
-
-# C executables must link to a shared object
-set(C_TEST_EXES ${C_TESTS})
-
-foreach(sourcefile ${C_TEST_EXES})
-    string(REPLACE ".c" "" exename ${sourcefile})
-    string(REGEX REPLACE "^((.+)/)+" "" exename ${exename})
-    add_executable(${exename}${ARTIFACT_SUFFIX} ${sourcefile})
-    set_target_properties(${exename}${ARTIFACT_SUFFIX}
-      PROPERTIES EXCLUDE_FROM_DEFAULT_BUILD_RELEASE 1
-      EXCLUDE_FROM_DEFAULT_BUILD_MINRELEASE 1
-      EXCLUDE_FROM_DEFAULT_BUILD_RELWITHDEBINFO 1
-      )
-    target_link_libraries(${exename}${ARTIFACT_SUFFIX} rocksdb${ARTIFACT_SUFFIX} testutillib${ARTIFACT_SUFFIX})
-endforeach(sourcefile ${C_TEST_EXES})

DUMP_FORMAT.md

@@ -1,16 +0,0 @@
-## RocksDB dump format
-
-The version 1 RocksDB dump format is fairly simple:
-
-1) The dump starts with the magic 8 byte identifier "ROCKDUMP"
-
-2) The magic is followed by an 8 byte big-endian version which is 0x00000001.
-
-3) Next are arbitrarily sized chunks of bytes prepended by 4 byte little endian number indicating how large each chunk is.
-
-4) The first chunk is special and is a json string indicating some things about the creation of this dump.  It contains the following keys:
-* database-path: The path of the database this dump was created from.
-* hostname: The hostname of the machine where the dump was created.
-* creation-time: Unix seconds since epoc when this dump was created.
-
-5) Following the info dump the slices paired into are key/value pairs.

HISTORY.md

@@ -1,215 +1,4 @@
 # Rocksdb Change Log
-## 4.6.0 (3/10/2016)
-### Public API Changes
-* Change default of BlockBasedTableOptions.format_version to 2. It means default DB created by 4.6 or up cannot be opened by RocksDB version 3.9 or earlier.
-* Added strict_capacity_limit option to NewLRUCache. If the flag is set to true, insert to cache will fail if no enough capacity can be free. Signiture of Cache::Insert() is updated accordingly.
-* Tickers [NUMBER_DB_NEXT, NUMBER_DB_PREV, NUMBER_DB_NEXT_FOUND, NUMBER_DB_PREV_FOUND, ITER_BYTES_READ] are not updated immediately. The are updated when the Iterator is deleted.  
-* Add monotonically increasing counter (DB property "rocksdb.current-super-version-number") that increments upon any change to the LSM tree.
-### New Features
-* Add CompactionPri::kMinOverlappingRatio, a compaction picking mode friendly to write amplification.
-* Deprecate Iterator::IsKeyPinned() and replace it with Iterator::GetProperty() with prop_name="rocksdb.iterator.is.key.pinned"
-
-## 4.5.0 (2/5/2016)
-### Public API Changes
-* Add a new perf context level between kEnableCount and kEnableTime. Level 2 now does not include timers for mutexes.
-* Statistics of mutex operation durations will not be measured by default. If you want to have them enabled, you need to set Statistics::stats_level_ to kAll.
-* DBOptions::delete_scheduler and NewDeleteScheduler() are removed, please use DBOptions::sst_file_manager and NewSstFileManager() instead
-
-### New Features
-* ldb tool now supports operations to non-default column families.
-* Add kPersistedTier to ReadTier.  This option allows Get and MultiGet to read only the persited data and skip mem-tables if writes were done with disableWAL = true.
-* Add DBOptions::sst_file_manager. Use NewSstFileManager() in include/rocksdb/sst_file_manager.h to create a SstFileManager that can be used to track the total size of SST files and control the SST files deletion rate.  
-
-## 4.4.0 (1/14/2016)
-### Public API Changes
-* Change names in CompactionPri and add a new one.
-* Deprecate options.soft_rate_limit and add options.soft_pending_compaction_bytes_limit.
-* If options.max_write_buffer_number > 3, writes will be slowed down when writing to the last write buffer to delay a full stop.
-* Introduce CompactionJobInfo::compaction_reason, this field include the reason to trigger the compaction.
-* After slow down is triggered, if estimated pending compaction bytes keep increasing, slowdown more.
-* Increase default options.delayed_write_rate to 2MB/s.
-* Added a new parameter --path to ldb tool. --path accepts the name of either MANIFEST, SST or a WAL file. Either --db or --path can be used when calling ldb.
-
-## 4.3.0 (12/8/2015)
-### New Features
-* CompactionFilter has new member function called IgnoreSnapshots which allows CompactionFilter to be called even if there are snapshots later than the key.
-* RocksDB will now persist options under the same directory as the RocksDB database on successful DB::Open, CreateColumnFamily, DropColumnFamily, and SetOptions.
-* Introduce LoadLatestOptions() in rocksdb/utilities/options_util.h.  This function can construct the latest DBOptions / ColumnFamilyOptions used by the specified RocksDB intance.
-* Introduce CheckOptionsCompatibility() in rocksdb/utilities/options_util.h.  This function checks whether the input set of options is able to open the specified DB successfully.
-
-### Public API Changes
-* When options.db_write_buffer_size triggers, only the column family with the largest column family size will be flushed, not all the column families.
-
-## 4.2.0 (11/9/2015)
-### New Features
-* Introduce CreateLoggerFromOptions(), this function create a Logger for provided DBOptions.
-* Add GetAggregatedIntProperty(), which returns the sum of the GetIntProperty of all the column families.
-* Add MemoryUtil in rocksdb/utilities/memory.h.  It currently offers a way to get the memory usage by type from a list rocksdb instances.
-
-### Public API Changes
-* CompactionFilter::Context includes information of Column Family ID
-* The need-compaction hint given by TablePropertiesCollector::NeedCompact() will be persistent and recoverable after DB recovery. This introduces a breaking format change. If you use this experimental feature, including NewCompactOnDeletionCollectorFactory() in the new version, you may not be able to directly downgrade the DB back to version 4.0 or lower.
-* TablePropertiesCollectorFactory::CreateTablePropertiesCollector() now takes an option Context, containing the information of column family ID for the file being written.
-* Remove DefaultCompactionFilterFactory.
-
-
-## 4.1.0 (10/8/2015)
-### New Features
-* Added single delete operation as a more efficient way to delete keys that have not been overwritten.
-* Added experimental AddFile() to DB interface that allow users to add files created by SstFileWriter into an empty Database, see include/rocksdb/sst_file_writer.h and DB::AddFile() for more info.
-* Added support for opening SST files with .ldb suffix which enables opening LevelDB databases.
-* CompactionFilter now supports filtering of merge operands and merge results.
-
-### Public API Changes
-* Added SingleDelete() to the DB interface.
-* Added AddFile() to DB interface.
-* Added SstFileWriter class.
-* CompactionFilter has a new method FilterMergeOperand() that RocksDB applies to every merge operand during compaction to decide whether to filter the operand.
-* We removed CompactionFilterV2 interfaces from include/rocksdb/compaction_filter.h. The functionality was deprecated already in version 3.13.
-
-## 4.0.0 (9/9/2015)
-### New Features
-* Added support for transactions.  See include/rocksdb/utilities/transaction.h for more info.
-* DB::GetProperty() now accepts "rocksdb.aggregated-table-properties" and "rocksdb.aggregated-table-properties-at-levelN", in which case it returns aggregated table properties of the target column family, or the aggregated table properties of the specified level N if the "at-level" version is used.
-* Add compression option kZSTDNotFinalCompression for people to experiment ZSTD although its format is not finalized.
-* We removed the need for LATEST_BACKUP file in BackupEngine. We still keep writing it when we create new backups (because of backward compatibility), but we don't read it anymore.
-
-### Public API Changes
-* Removed class Env::RandomRWFile and Env::NewRandomRWFile().
-* Renamed DBOptions.num_subcompactions to DBOptions.max_subcompactions to make the name better match the actual functionality of the option.
-* Added Equal() method to the Comparator interface that can optionally be overwritten in cases where equality comparisons can be done more efficiently than three-way comparisons.
-* Previous 'experimental' OptimisticTransaction class has been replaced by Transaction class.
-
-## 3.13.0 (8/6/2015)
-### New Features
-* RollbackToSavePoint() in WriteBatch/WriteBatchWithIndex
-* Add NewCompactOnDeletionCollectorFactory() in utilities/table_properties_collectors, which allows rocksdb to mark a SST file as need-compaction when it observes at least D deletion entries in any N consecutive entries in that SST file.  Note that this feature depends on an experimental NeedCompact() API --- the result of this API will not persist after DB restart.
-* Add DBOptions::delete_scheduler. Use NewDeleteScheduler() in include/rocksdb/delete_scheduler.h to create a DeleteScheduler that can be shared among multiple RocksDB instances to control the file deletion rate of SST files that exist in the first db_path.
-
-### Public API Changes
-* Deprecated WriteOptions::timeout_hint_us. We no longer support write timeout. If you really need this option, talk to us and we might consider returning it.
-* Deprecated purge_redundant_kvs_while_flush option.
-* Removed BackupEngine::NewBackupEngine() and NewReadOnlyBackupEngine() that were deprecated in RocksDB 3.8. Please use BackupEngine::Open() instead.
-* Deprecated Compaction Filter V2. We are not aware of any existing use-cases. If you use this filter, your compile will break with RocksDB 3.13. Please let us know if you use it and we'll put it back in RocksDB 3.14.
-* Env::FileExists now returns a Status instead of a boolean
-* Add statistics::getHistogramString() to print detailed distribution of a histogram metric.
-* Add DBOptions::skip_stats_update_on_db_open.  When it is on, DB::Open() will run faster as it skips the random reads required for loading necessary stats from SST files to optimize compaction.
-
-## 3.12.0 (7/2/2015)
-### New Features
-* Added experimental support for optimistic transactions.  See include/rocksdb/utilities/optimistic_transaction.h for more info.
-* Added a new way to report QPS from db_bench (check out --report_file and --report_interval_seconds)
-* Added a cache for individual rows. See DBOptions::row_cache for more info.
-* Several new features on EventListener (see include/rocksdb/listener.h):
- - OnCompationCompleted() now returns per-compaciton job statistics, defined in include/rocksdb/compaction_job_stats.h.
- - Added OnTableFileCreated() and OnTableFileDeleted().
-* Add compaction_options_universal.enable_trivial_move to true, to allow trivial move while performing universal compaction. Trivial move will happen only when all the input files are non overlapping.
-
-### Public API changes
-* EventListener::OnFlushCompleted() now passes FlushJobInfo instead of a list of parameters.
-* DB::GetDbIdentity() is now a const function.  If this function is overridden in your application, be sure to also make GetDbIdentity() const to avoid compile error.
-* Move listeners from ColumnFamilyOptions to DBOptions.
-* Add max_write_buffer_number_to_maintain option
-* DB::CompactRange()'s parameter reduce_level is changed to change_level, to allow users to move levels to lower levels if allowed. It can be used to migrate a DB from options.level_compaction_dynamic_level_bytes=false to options.level_compaction_dynamic_level_bytes.true.
-* Change default value for options.compaction_filter_factory and options.compaction_filter_factory_v2 to nullptr instead of DefaultCompactionFilterFactory and DefaultCompactionFilterFactoryV2.
-* If CancelAllBackgroundWork is called without doing a flush after doing loads with WAL disabled, the changes which haven't been flushed before the call to CancelAllBackgroundWork will be lost.
-* WBWIIterator::Entry() now returns WriteEntry instead of `const WriteEntry&`
-* options.hard_rate_limit is deprecated.
-* When options.soft_rate_limit or options.level0_slowdown_writes_trigger is triggered, the way to slow down writes is changed to: write rate to DB is limited to to options.delayed_write_rate.
-* DB::GetApproximateSizes() adds a parameter to allow the estimation to include data in mem table, with default to be not to include. It is now only supported in skip list mem table.
-* DB::CompactRange() now accept CompactRangeOptions instead of multiple paramters. CompactRangeOptions is defined in include/rocksdb/options.h.
-* CompactRange() will now skip bottommost level compaction for level based compaction if there is no compaction filter, bottommost_level_compaction is introduced in CompactRangeOptions to control when it's possbile to skip bottommost level compaction. This mean that if you want the compaction to produce a single file you need to set bottommost_level_compaction to BottommostLevelCompaction::kForce.
-* Add Cache.GetPinnedUsage() to get the size of memory occupied by entries that are in use by the system.
-* DB:Open() will fail if the compression specified in Options is not linked with the binary. If you see this failure, recompile RocksDB with compression libraries present on your system. Also, previously our default compression was snappy. This behavior is now changed. Now, the default compression is snappy only if it's available on the system. If it isn't we change the default to kNoCompression.
-* We changed how we account for memory used in block cache. Previously, we only counted the sum of block sizes currently present in block cache. Now, we count the actual memory usage of the blocks. For example, a block of size 4.5KB will use 8KB memory with jemalloc. This might decrease your memory usage and possibly decrease performance. Increase block cache size if you see this happening after an upgrade.
-* Add BackupEngineImpl.options_.max_background_operations to specify the maximum number of operations that may be performed in parallel. Add support for parallelized backup and restore.
-* Add DB::SyncWAL() that does a WAL sync without blocking writers.
-
-## 3.11.0 (5/19/2015)
-### New Features
-* Added a new API Cache::SetCapacity(size_t capacity) to dynamically change the maximum configured capacity of the cache. If the new capacity is less than the existing cache usage, the implementation will try to lower the usage by evicting the necessary number of elements following a strict LRU policy.
-* Added an experimental API for handling flashcache devices (blacklists background threads from caching their reads) -- NewFlashcacheAwareEnv
-* If universal compaction is used and options.num_levels > 1, compact files are tried to be stored in none-L0 with smaller files based on options.target_file_size_base. The limitation of DB size when using universal compaction is greatly mitigated by using more levels. You can set num_levels = 1 to make universal compaction behave as before. If you set num_levels > 1 and want to roll back to a previous version, you need to compact all files to a big file in level 0 (by setting target_file_size_base to be large and CompactRange(<cf_handle>, nullptr, nullptr, true, 0) and reopen the DB with the same version to rewrite the manifest, and then you can open it using previous releases.
-* More information about rocksdb background threads are available in Env::GetThreadList(), including the number of bytes read / written by a compaction job, mem-table size and current number of bytes written by a flush job and many more.  Check include/rocksdb/thread_status.h for more detail.
-
-### Public API changes
-* TablePropertiesCollector::AddUserKey() is added to replace TablePropertiesCollector::Add(). AddUserKey() exposes key type, sequence number and file size up to now to users.
-* DBOptions::bytes_per_sync used to apply to both WAL and table files. As of 3.11 it applies only to table files. If you want to use this option to sync WAL in the background, please use wal_bytes_per_sync
-
-## 3.10.0 (3/24/2015)
-### New Features
-* GetThreadStatus() is now able to report detailed thread status, including:
- - Thread Operation including flush and compaction.
- - The stage of the current thread operation.
- - The elapsed time in micros since the current thread operation started.
- More information can be found in include/rocksdb/thread_status.h.  In addition, when running db_bench with --thread_status_per_interval, db_bench will also report thread status periodically.
-* Changed the LRU caching algorithm so that referenced blocks (by iterators) are never evicted. This change made parameter removeScanCountLimit obsolete. Because of that NewLRUCache doesn't take three arguments anymore. table_cache_remove_scan_limit option is also removed
-* By default we now optimize the compilation for the compilation platform (using -march=native). If you want to build portable binary, use 'PORTABLE=1' before the make command.
-* We now allow level-compaction to place files in different paths by
-  specifying them in db_paths along with the target_size.
-  Lower numbered levels will be placed earlier in the db_paths and higher
-  numbered levels will be placed later in the db_paths vector.
-* Potentially big performance improvements if you're using RocksDB with lots of column families (100-1000)
-* Added BlockBasedTableOptions.format_version option, which allows user to specify which version of block based table he wants. As a general guidline, newer versions have more features, but might not be readable by older versions of RocksDB.
-* Added new block based table format (version 2), which you can enable by setting BlockBasedTableOptions.format_version = 2. This format changes how we encode size information in compressed blocks and should help with memory allocations if you're using Zlib or BZip2 compressions.
-* MemEnv (env that stores data in memory) is now available in default library build. You can create it by calling NewMemEnv().
-* Add SliceTransform.SameResultWhenAppended() to help users determine it is safe to apply prefix bloom/hash.
-* Block based table now makes use of prefix bloom filter if it is a full fulter.
-* Block based table remembers whether a whole key or prefix based bloom filter is supported in SST files. Do a sanity check when reading the file with users' configuration.
-* Fixed a bug in ReadOnlyBackupEngine that deleted corrupted backups in some cases, even though the engine was ReadOnly
-* options.level_compaction_dynamic_level_bytes, a feature to allow RocksDB to pick dynamic base of bytes for levels. With this feature turned on, we will automatically adjust max bytes for each level. The goal of this feature is to have lower bound on size amplification. For more details, see comments in options.h.
-* Added an abstract base class WriteBatchBase for write batches
-* Fixed a bug where we start deleting files of a dropped column families even if there are still live references to it
-
-### Public API changes
-* Deprecated skip_log_error_on_recovery and table_cache_remove_scan_count_limit options.
-* Logger method logv with log level parameter is now virtual
-
-### RocksJava
-* Added compression per level API.
-* MemEnv is now available in RocksJava via RocksMemEnv class.
-* lz4 compression is now included in rocksjava static library when running `make rocksdbjavastatic`.
-* Overflowing a size_t when setting rocksdb options now throws an IllegalArgumentException, which removes the necessity for a developer to catch these Exceptions explicitly.
-
-## 3.9.0 (12/8/2014)
-
-### New Features
-* Add rocksdb::GetThreadList(), which in the future will return the current status of all
-  rocksdb-related threads.  We will have more code instruments in the following RocksDB
-  releases.
-* Change convert function in rocksdb/utilities/convenience.h to return Status instead of boolean.
-  Also add support for nested options in convert function
-
-### Public API changes
-* New API to create a checkpoint added. Given a directory name, creates a new
-  database which is an image of the existing database.
-* New API LinkFile added to Env. If you implement your own Env class, an
-  implementation of the API LinkFile will have to be provided.
-* MemTableRep takes MemTableAllocator instead of Arena
-
-### Improvements
-* RocksDBLite library now becomes smaller and will be compiled with -fno-exceptions flag.
-
-## 3.8.0 (11/14/2014)
-
-### Public API changes
-* BackupEngine::NewBackupEngine() was deprecated; please use BackupEngine::Open() from now on.
-* BackupableDB/RestoreBackupableDB have new GarbageCollect() methods, which will clean up files from corrupt and obsolete backups.
-* BackupableDB/RestoreBackupableDB have new GetCorruptedBackups() methods which list corrupt backups.
-
-### Cleanup
-* Bunch of code cleanup, some extra warnings turned on (-Wshadow, -Wshorten-64-to-32, -Wnon-virtual-dtor)
-
-### New features
-* CompactFiles and EventListener, although they are still in experimental state
-* Full ColumnFamily support in RocksJava.
-
-## 3.7.0 (11/6/2014)
-### Public API changes
-* Introduce SetOptions() API to allow adjusting a subset of options dynamically online
-* Introduce 4 new convenient functions for converting Options from string: GetColumnFamilyOptionsFromMap(), GetColumnFamilyOptionsFromString(), GetDBOptionsFromMap(), GetDBOptionsFromString()
-* Remove WriteBatchWithIndex.Delete() overloads using SliceParts
-* When opening a DB, if options.max_background_compactions is larger than the existing low pri pool of options.env, it will enlarge it. Similarly, options.max_background_flushes is larger than the existing high pri pool of options.env, it will enlarge it.
 
 ## 3.6.0 (10/7/2014)
 ### Disk format changes
@@ -240,7 +29,7 @@
 * Support Multiple DB paths in universal style compactions
 * Add feature of storing plain table index and bloom filter in SST file.
 * CompactRange() will never output compacted files to level 0. This used to be the case when all the compaction input files were at level 0.
-* Added iterate_upper_bound to define the extent upto which the forward iterator will return entries. This will prevent iterating over delete markers and overwritten entries for edge cases where you want to break out the iterator anyways. This may improve performance in case there are a large number of delete markers or overwritten entries.
+* Added iterate_upper_bound to define the extent upto which the forward iterator will return entries. This will prevent iterating over delete markers and overwritten entries for edge cases where you want to break out the iterator anyways. This may improve perfomance in case there are a large number of delete markers or overwritten entries.
 
 ### Public API changes
 * DBOptions.db_paths now is a vector of a DBPath structure which indicates both of path and target size

INSTALL.md

@@ -1,28 +1,23 @@
 ## Compilation
 
-**Important**: If you plan to run RocksDB in production, don't compile using default 
-`make` or `make all`. That will compile RocksDB in debug mode, which is much slower
-than release mode.
-
 RocksDB's library should be able to compile without any dependency installed,
 although we recommend installing some compression libraries (see below).
-We do depend on newer gcc/clang with C++11 support.
+We do depend on newer gcc with C++11 support.
 
 There are few options when compiling RocksDB:
 
-* [recommended] `make static_lib` will compile librocksdb.a, RocksDB static library. Compiles static library in release mode.
+* [recommended] `make static_lib` will compile librocksdb.a, RocksDB static library.
 
-* `make shared_lib` will compile librocksdb.so, RocksDB shared library. Compiles shared library in release mode.
+* `make shared_lib` will compile librocksdb.so, RocksDB shared library.
 
-* `make check` will compile and run all the unit tests. `make check` will compile RocksDB in debug mode.
+* `make check` will compile and run all the unit tests
 
 * `make all` will compile our static library, and all our tools and unit tests. Our tools
-depend on gflags. You will need to have gflags installed to run `make all`. This will compile RocksDB in debug mode. Don't
-use binaries compiled by `make all` in production.
+depend on gflags. You will need to have gflags installed to run `make all`.
+
+* if Intel SSE instruction set is supported, set USE_SSE=" -msse -msse4.2 " to make sure
+SSE4.2 is used to speed up CRC32 when calculating data checksum.
 
-* By default the binary we produce is optimized for the platform you're compiling on
-(-march=native or the equivalent). If you want to build a portable binary, add 'PORTABLE=1' before
-your make commands, like this: `PORTABLE=1 make static_lib`
 
 ## Dependencies
 
@@ -33,7 +28,7 @@ your make commands, like this: `PORTABLE=1 make static_lib`
       data compression.
 
 * All our tools depend on:
-  - [gflags](https://gflags.github.io/gflags/) - a library that handles
+  - [gflags](https://code.google.com/p/gflags/) - a library that handles
       command line flags processing. You can compile rocksdb library even
       if you don't have gflags installed.
 
@@ -80,12 +75,14 @@ your make commands, like this: `PORTABLE=1 make static_lib`
         * Update XCode:  run `xcode-select --install` (or install it from XCode App's settting).
         * Install via [homebrew](http://brew.sh/).
             * If you're first time developer in MacOS, you still need to run: `xcode-select --install` in your command line.
-            * run `brew tap homebrew/versions; brew install gcc47 --use-llvm` to install gcc 4.7 (or higher).
-    * run `brew install rocksdb`
+            * run `brew tap homebrew/dupes; brew install gcc47 --use-llvm` to install gcc 4.7 (or higher).
+    * Install zlib, bzip2 and snappy libraries for compression.
+    * Install gflags. We have included a script
+    `build_tools/mac-install-gflags.sh`, which should automatically install it (execute this file instead of runing using "source" command).
+    If you installed gflags by other means (for example, `brew install gflags`),
+    please set `LIBRARY_PATH` and `CPATH` accordingly.
+    * Please note that some of the optimizations/features are disabled in OSX.
+    We did not run any production workloads on it.
 
 * **iOS**:
   * Run: `TARGET_OS=IOS make static_lib`. When building the project which uses rocksdb iOS library, make sure to define two important pre-processing macros: `ROCKSDB_LITE` and `IOS_CROSS_COMPILE`.
-
-* **Windows**:
-  * For building with MS Visual Studio 13 you will need Update 4 installed.
-  * Read and follow the instructions at CMakeLists.txt

LICENSE

@@ -2,7 +2,7 @@ BSD License
 
 For rocksdb software
 
-Copyright (c) 2011-present, Facebook, Inc.
+Copyright (c) 2014, Facebook, Inc.
 All rights reserved.
 ---------------------------------------------------------------------
 

PATENTS

@@ -1,33 +1,23 @@
-Additional Grant of Patent Rights Version 2
+Additional Grant of Patent Rights
 
-"Software" means the RocksDB software distributed by Facebook, Inc.
+“Software” means the rocksdb software distributed by Facebook, Inc.
 
-Facebook, Inc. ("Facebook") hereby grants to each recipient of the Software
-("you") a perpetual, worldwide, royalty-free, non-exclusive, irrevocable
-(subject to the termination provision below) license under any Necessary
-Claims, to make, have made, use, sell, offer to sell, import, and otherwise
-transfer the Software. For avoidance of doubt, no license is granted under
-Facebook’s rights in any patent claims that are infringed by (i) modifications
-to the Software made by you or any third party or (ii) the Software in
-combination with any software or other technology.
+Facebook hereby grants you a perpetual, worldwide, royalty-free,
+non-exclusive, irrevocable (subject to the termination provision below)
+license under any rights in any patent claims owned by Facebook, to make,
+have made, use, sell, offer to sell, import, and otherwise transfer the
+Software. For avoidance of doubt, no license is granted under Facebook’s
+rights in any patent claims that are infringed by (i) modifications to the
+Software made by you or a third party, or (ii) the Software in combination
+with any software or other technology provided by you or a third party.
 
-The license granted hereunder will terminate, automatically and without notice,
-if you (or any of your subsidiaries, corporate affiliates or agents) initiate
-directly or indirectly, or take a direct financial interest in, any Patent
-Assertion: (i) against Facebook or any of its subsidiaries or corporate
-affiliates, (ii) against any party if such Patent Assertion arises in whole or
-in part from any software, technology, product or service of Facebook or any of
-its subsidiaries or corporate affiliates, or (iii) against any party relating
-to the Software. Notwithstanding the foregoing, if Facebook or any of its
-subsidiaries or corporate affiliates files a lawsuit alleging patent
-infringement against you in the first instance, and you respond by filing a
-patent infringement counterclaim in that lawsuit against that party that is
-unrelated to the Software, the license granted hereunder will not terminate
-under section (i) of this paragraph due to such counterclaim.
-
-A "Necessary Claim" is a claim of a patent owned by Facebook that is
-necessarily infringed by the Software standing alone.
-
-A "Patent Assertion" is any lawsuit or other action alleging direct, indirect,
-or contributory infringement or inducement to infringe any patent, including a
-cross-claim or counterclaim.
+The license granted hereunder will terminate, automatically and without
+notice, for anyone that makes any claim (including by filing any lawsuit,
+assertion or other action) alleging (a) direct, indirect, or contributory
+infringement or inducement to infringe any patent: (i) by Facebook or any
+of its subsidiaries or affiliates, whether or not such claim is related
+to the Software, (ii) by any party if such claim arises in whole or in
+part from any software, product or service of Facebook or any of its
+subsidiaries or affiliates, whether or not such claim is related to the
+Software, or (iii) by any party relating to the Software; or (b) that
+any right in any patent claim of Facebook is invalid or unenforceable.

ROCKSDB_LITE.md

@@ -8,7 +8,6 @@ Some examples of the features disabled by ROCKSDB_LITE:
 * No support for replication (which we provide in form of TrasactionalIterator)
 * No advanced monitoring tools
 * No special-purpose memtables that are highly optimized for specific use cases
-* No Transactions
 
 When adding a new big feature to RocksDB, please add ROCKSDB_LITE compile guard if:
 * Nobody from mobile really needs your feature,

USERS.md

@@ -1,54 +0,0 @@
-This document lists users of RocksDB and their use cases. If you are using RocksDB, please open a pull request and add yourself to the list.
-
-## Facebook
-At Facebook, we use RocksDB as a backend for many different stateful services. We're also experimenting with running RocksDB as a storage engine for two databases:
-
-1. MyRocks -- https://github.com/MySQLOnRocksDB/mysql-5.6
-2. MongoRocks -- https://github.com/mongodb-partners/mongo-rocks
-
-## LinkedIn
-Two different use cases at Linkedin are using RocksDB as a storage engine:
-
-1. LinkedIn's follow feed for storing user's activities
-2. Apache Samza, open source framework for stream processing
-
-Learn more about those use cases in a Tech Talk by Ankit Gupta and Naveen Somasundaram: http://www.youtube.com/watch?v=plqVp_OnSzg
-
-## Yahoo
-Yahoo is using RocksDB as a storage engine for their biggest distributed data store Sherpa. Learn more about it here: http://yahooeng.tumblr.com/post/120730204806/sherpa-scales-new-heights
-
-## CockroachDB
-CockroachDB is an open-source geo-replicated transactional database (still in development). They are using RocksDB as their storage engine. Check out their github: https://github.com/cockroachdb/cockroach
-
-## DNANexus
-DNANexus is using RocksDB to speed up processing of genomics data.
-You can learn more from this great blog post by Mike Lin: http://devblog.dnanexus.com/faster-bam-sorting-with-samtools-and-rocksdb/
-
-## Iron.io
-Iron.io is using RocksDB as a storage engine for their distributed queueing system.
-Learn more from Tech Talk by Reed Allman: http://www.youtube.com/watch?v=HTjt6oj-RL4
-
-## Tango Me
-Tango is using RocksDB as a graph storage to store all users' connection data and other social activity data.
-
-## Turn
-Turn is using RocksDB as a storage layer for their key/value store, serving at peak 2.4MM QPS out of different datacenters.
-Check out our RocksDB Protobuf merge operator at: https://github.com/vladb38/rocksdb_protobuf
-
-## Santanader UK/Cloudera Profession Services
-Check out their blog post: http://blog.cloudera.com/blog/2015/08/inside-santanders-near-real-time-data-ingest-architecture/
-
-## Airbnb
-Airbnb is using RocksDB as a storage engine for their personalized search service. You can learn more about it here: https://www.youtube.com/watch?v=ASQ6XMtogMs
-
-## Pinterest
-Pinterest's Object Retrieval System uses RocksDB for storage: https://www.youtube.com/watch?v=MtFEVEs_2Vo
-
-## Smyte
-[Smyte](https://www.smyte.com/) uses RocksDB as the storage layer for their core key-value storage, high-performance counters and time-windowed HyperLogLog services.
-
-## Rakuten Marketing
-[Rakuten Marketing](https://marketing.rakuten.com/) uses RocksDB as the disk cache layer for the real-time bidding service in their Performance DSP.
-
-## VWO, Wingify
-[VWO's](https://vwo.com/) Smart Code checker and URL helper uses RocksDB to store all the URLs where VWO's Smart Code is installed.

Vagrantfile

@@ -13,21 +13,4 @@ Vagrant.configure("2") do |config|
     box.vm.box = "chef/centos-6.5"
   end
 
-  config.vm.define "FreeBSD10" do |box|
-    box.vm.guest = :freebsd
-    box.vm.box = "robin/freebsd-10"
-    # FreeBSD does not support 'mount_virtualbox_shared_folder', use NFS
-    box.vm.synced_folder ".", "/vagrant", :nfs => true, id: "vagrant-root"
-    box.vm.network "private_network", ip: "10.0.1.10"
-
-    # build everything after creating VM, skip using --no-provision
-    box.vm.provision "shell", inline: <<-SCRIPT
-      pkg install -y gmake clang35
-      export CXX=/usr/local/bin/clang++35
-      cd /vagrant
-      gmake clean
-      gmake all OPT=-g
-    SCRIPT
-  end
-
 end

WINDOWS_PORT.md

@@ -1,228 +0,0 @@
-# Microsoft Contribution Notes
-
-## Contributors
-* Alexander Zinoviev https://github.com/zinoale
-* Dmitri Smirnov https://github.com/yuslepukhin
-* Praveen Rao  https://github.com/PraveenSinghRao
-* Sherlock Huang  https://github.com/SherlockNoMad
-
-## Introduction
-RocksDB is a well proven open source key-value persistent store, optimized for fast storage. It provides scalability with number of CPUs and storage IOPS, to support IO-bound, in-memory and write-once workloads, most importantly, to be flexible to allow for innovation.
-
-As Microsoft Bing team we have been continuously pushing hard to improve the scalability, efficiency of platform and eventually benefit Bing end-user satisfaction.  We would like to explore the opportunity to embrace open source, RocksDB here, to use, enhance and customize for our usage, and also contribute back to the RocksDB community. Herein, we are pleased to offer this RocksDB port for Windows platform.
-
-These notes describe some decisions and changes we had to make with regards to porting RocksDB on Windows. We hope this will help both reviewers and users of the Windows port.
-We are open for comments and improvements.
-
-## OS specifics
-All of the porting, testing and benchmarking was done on Windows Server 2012 R2 Datacenter 64-bit but to the best of our knowledge there is not a specific API we used during porting that is unsupported on other Windows OS after Vista.
-
-## Porting goals
-We strive to achieve the following goals:
-* make use of the existing porting interface of RocksDB
-* make minimum [WY2]modifications within platform independent code.
-* make all unit test pass both in debug and release builds. 
-  * Note: latest introduction of SyncPoint seems to disable running db_test in Release.
-* make performance on par with published benchmarks accounting for HW differences
-* we would like to keep the port code inline with the master branch with no forking
-
-## Build system
-We have chosen CMake as a widely accepted build system to build the Windows port. It is very fast and convenient. 
-
-At the same time it generates Visual Studio projects that are both usable from a command line and IDE.
-
-The top-level CMakeLists.txt file contains description of all targets and build rules. It also provides brief instructions on how to build the software for Windows. One more build related file is thirdparty.inc that also resides on the top level. This file must be edited to point to actual third party libraries location.
-We think that it would be beneficial to merge the existing make-based build system and the new cmake-based build system into a single one to use on all platforms.
-
-All building and testing was done for 64-bit. We have not conducted any testing for 32-bit and early reports indicate that it will not run on 32-bit.
-
-## C++ and STL notes
-We had to make some minimum changes within the portable files that either account for OS differences or the shortcomings of C++11 support in the current version of the MS compiler. Most or all of them are expected to be fixed in the upcoming compiler releases.
-
-We plan to use this port for our business purposes here at Bing and this provided business justification for this port. This also means, we do not have at present to choose the compiler version at will.
-
-* Certain headers that are not present and not necessary on Windows were simply `#ifndef OS_WIN` in a few places (`unistd.h`)
-* All posix specific headers were replaced to port/port.h which worked well
-* Replaced `dirent.h` for `port/dirent.h` (very few places) with the implementation of the relevant interfaces within `rocksdb::port` namespace
-* Replaced `sys/time.h` to `port/sys_time.h` (few places) implemented equivalents within `rocksdb::port`
-* `printf %z` specification is not supported on Windows. To imitate existing standards we came up with a string macro `ROCKSDB_PRIszt` which expands to `%z` on posix systems and to Iu on windows.
-* in class member initialization were moved to a __ctors in some cases
-* `constexpr` is not supported. We had to replace `std::numeric_limits<>::max/min()` to its C macros for constants. Sometimes we had to make class members `static const` and place a definition within a .cc file.
-* `constexpr` for functions was replaced to a template specialization (1 place)
-* Union members that have non-trivial constructors were replaced to `char[]` in one place along with bug fixes (spatial experimental feature)
-* Zero-sized arrays are deemed a non-standard extension which we converted to 1 size array and that should work well for the purposes of these classes.
-* `std::chrono` lacks nanoseconds support (fixed in the upcoming release of the STL) and we had to use `QueryPerfCounter()` within env_win.cc
-* Function local statics initialization is still not safe. Used `std::once` to mitigate within WinEnv.
-
-## Windows Environments notes
-We endeavored to make it functionally on par with posix_env. This means we replicated the functionality of the thread pool and other things as precise as possible, including:
-* Replicate posix logic using std:thread primitives.
-* Implement all posix_env disk access functionality.
-* Set `use_os_buffer=false` to disable OS disk buffering for WinWritableFile and WinRandomAccessFile.
-* Replace `pread/pwrite` with `WriteFile/ReadFile` with `OVERLAPPED` structure.
-* Use `SetFileInformationByHandle` to compensate absence of `fallocate`.
-
-### In detail
-Even though Windows provides its own efficient thread-pool implementation we chose to replicate posix logic using `std::thread` primitives. This allows anyone to quickly detect any changes within the posix source code and replicate them within windows env. This has proven to work very well. At the same time for anyone who wishes to replace the built-in thread-pool can do so using RocksDB stackable environments.
-
-For disk access we implemented all of the functionality present within the posix_env which includes memory mapped files, random access, rate-limiter support etc.
-The `use_os_buffer` flag on Posix platforms currently denotes disabling read-ahead log via `fadvise` mechanism. Windows does not have `fadvise` system call. What is more, it implements disk cache in a way that differs from Linux greatly. It’s not an uncommon practice on Windows to perform un-buffered disk access to gain control of the memory consumption. We think that in our use case this may also be a good configuration option at the expense of disk throughput. To compensate one may increase the configured in-memory cache size instead. Thus we have chosen  `use_os_buffer=false` to disable OS disk buffering for `WinWritableFile` and `WinRandomAccessFile`. The OS imposes restrictions on the alignment of the disk offsets, buffers used and the amount of data that is read/written when accessing files in un-buffered mode. When the option is true, the classes behave in a standard way. This allows to perform writes and reads in cases when un-buffered access does not make sense such as WAL and MANIFEST.
-
-We have replaced `pread/pwrite` with `WriteFile/ReadFile` with `OVERLAPPED` structure so we can atomically seek to the position of the disk operation but still perform the operation synchronously. Thus we able to emulate that functionality of `pread/pwrite` reasonably well. The only difference is that the file pointer is not returned to its original position but that hardly matters given the random nature of access.
-
-We used `SetFileInformationByHandle` both to truncate files after writing a full final page to disk and to pre-allocate disk space for faster I/O thus compensating for the absence of `fallocate` although some differences remain. For example, the pre-allocated space is not filled with zeros like on Linux, however, on a positive note, the end of file position is also not modified after pre-allocation.
-
-RocksDB renames, copies and deletes files at will even though they may be opened with another handle at the same time. We had to relax and allow nearly all the concurrent access permissions possible.
-
-## Thread-Local Storage
-Thread-Local storage plays a significant role for RocksDB performance. Rather than creating a separate implementation we chose to create inline wrappers that forward `pthread_specific` calls to Windows `Tls` interfaces within `rocksdb::port` namespace. This leaves the existing meat of the logic in tact and unchanged and just as maintainable.
-
-To mitigate the lack of thread local storage cleanup on thread-exit we added a limited amount of windows specific code within the same thread_local.cc file that injects a cleanup callback into a `"__tls"` structure within `".CRT$XLB"` data segment. This approach guarantees that the callback is invoked regardless of whether RocksDB used within an executable, standalone DLL or within another DLL.
-
-## Jemalloc usage
-
-When RocksDB is used with Jemalloc the latter needs to be initialized before any of the C++ globals or statics. To accomplish that we injected an initialization routine into `".CRT$XCT"` that is automatically invoked by the runtime before initializing static objects. je-uninit is queued to `atexit()`. 
-
-The jemalloc redirecting `new/delete` global operators are used by the linker providing certain conditions are met. See build section in these notes.
-
-## Stack Trace and Unhandled Exception Handler
-
-We decided not to implement these two features because the hosting program as a rule has these two things in it.
-We experienced no inconveniences debugging issues in the debugger or analyzing process dumps if need be and thus we did not
-see this as a priority.
-
-## Performance results
-### Setup
-All of the benchmarks are run on the same set of machines. Here are the details of the test setup:
-* 2 Intel(R) Xeon(R) E5 2450 0 @ 2.10 GHz (total 16 cores)
-* 2 XK0480GDQPH SSD Device, total 894GB free disk
-* Machine has 128 GB of RAM
-* Operating System: Windows Server 2012 R2 Datacenter
-* 100 Million keys; each key is of size 10 bytes, each value is of size 800 bytes
-* total database size is ~76GB
-* The performance result is based on RocksDB 3.11.
-* The parameters used, unless specified, were exactly the same as published in the GitHub Wiki page. 
-
-### RocksDB on flash storage
-
-#### Test 1. Bulk Load of keys in Random Order
-
-Version 3.11 
-
-* Total Run Time: 17.6 min
-* Fillrandom: 5.480 micros/op 182465 ops/sec;  142.0 MB/s
-* Compact: 486056544.000 micros/op 0 ops/sec
-
-Version 3.10 
-
-* Total Run Time: 16.2 min 
-* Fillrandom: 5.018 micros/op 199269 ops/sec;  155.1 MB/s 
-* Compact: 441313173.000 micros/op 0 ops/sec; 
-
-
-#### Test 2. Bulk Load of keys in Sequential Order
-
-Version 3.11 
-
-* Fillseq: 4.944 micros/op 202k ops/sec;  157.4 MB/s
-
-Version 3.10
-
-* Fillseq: 4.105 micros/op 243.6k ops/sec;  189.6 MB/s 
-
-
-#### Test 3. Random Write
-
-Version 3.11 
-
-* Unbuffered I/O enabled
-* Overwrite: 52.661 micros/op 18.9k ops/sec;   14.8 MB/s
-
-Version 3.10
-
-* Unbuffered I/O enabled 
-* Overwrite: 52.661 micros/op 18.9k ops/sec; 
-
-
-#### Test 4. Random Read
-
-Version 3.11 
-
-* Unbuffered I/O enabled
-* Readrandom: 15.716 micros/op 63.6k ops/sec; 49.5 MB/s 
-
-Version 3.10
-
-* Unbuffered I/O enabled 
-* Readrandom: 15.548 micros/op 64.3k ops/sec; 
-
-
-#### Test 5. Multi-threaded read and single-threaded write
-
-Version 3.11
-
-* Unbuffered I/O enabled
-* Readwhilewriting: 25.128 micros/op 39.7k ops/sec; 
-
-Version 3.10
-
-* Unbuffered I/O enabled 
-* Readwhilewriting: 24.854 micros/op 40.2k ops/sec; 
-
-
-### RocksDB In Memory 
-
-#### Test 1. Point Lookup
-
-Version 3.11
-
-80K writes/sec
-* Write Rate Achieved: 40.5k write/sec;
-* Readwhilewriting: 0.314 micros/op 3187455 ops/sec;  364.8 MB/s (715454999 of 715454999 found)
-
-Version 3.10
-
-* Write Rate Achieved:  50.6k write/sec 
-* Readwhilewriting: 0.316 micros/op 3162028 ops/sec; (719576999 of 719576999 found) 
-
-
-*10K writes/sec*
-
-Version 3.11
-
-* Write Rate Achieved: 5.8k/s write/sec
-* Readwhilewriting: 0.246 micros/op 4062669 ops/sec;  464.9 MB/s (915481999 of 915481999 found)
-
-Version 3.10
-
-* Write Rate Achieved: 5.8k/s write/sec 
-* Readwhilewriting: 0.244 micros/op 4106253 ops/sec; (927986999 of 927986999 found) 
-
-
-#### Test 2. Prefix Range Query
-
-Version 3.11
-
-80K writes/sec
-* Write Rate Achieved:  46.3k/s write/sec
-* Readwhilewriting: 0.362 micros/op 2765052 ops/sec;  316.4 MB/s (611549999 of 611549999 found)
-
-Version 3.10
-
-* Write Rate Achieved: 45.8k/s write/sec 
-* Readwhilewriting: 0.317 micros/op 3154941 ops/sec; (708158999 of 708158999 found) 
-
-Version 3.11
-
-10K writes/sec
-* Write Rate Achieved: 5.78k write/sec
-* Readwhilewriting: 0.269 micros/op 3716692 ops/sec;  425.3 MB/s (837401999 of 837401999 found)
-
-Version 3.10
-
-* Write Rate Achieved: 5.7k write/sec 
-* Readwhilewriting: 0.261 micros/op 3830152 ops/sec; (863482999 of 863482999 found) 
-
-
-We think that there is still big room to improve the performance, which will be an ongoing effort for us.
-

appveyor.yml

@@ -1,15 +0,0 @@
-version: 1.0.{build}
-before_build:
-- md %APPVEYOR_BUILD_FOLDER%\build
-- cd %APPVEYOR_BUILD_FOLDER%\build
-- cmake -G "Visual Studio 12 Win64" -DOPTDBG=1 ..
-- cd ..
-build:
-  project: build\rocksdb.sln
-  parallel: true
-  verbosity: minimal
-test:
-test_script:
-- ps: build_tools\run_ci_db_test.ps1 -EnableRerun -Run db_test -Exclude DBTest.Randomized,DBTest.FileCreationRandomFailure -Concurrency 18
-- ps: build_tools\run_ci_db_test.ps1 -Run env_test -Concurrency 1
-

arcanist_util/__phutil_library_init__.php

@@ -1,3 +0,0 @@
-<?php
-
-phutil_register_library('arcanist_util', __FILE__);

arcanist_util/__phutil_library_map__.php

@@ -1,38 +0,0 @@
-<?php
-
-/**
- * This file is automatically generated. Use 'arc liberate' to rebuild it.
- * @generated
- * @phutil-library-version 2
- */
-
-phutil_register_library_map(array(
-  '__library_version__' => 2,
-  'class' =>
-  array(
-    'ArcanistCpplintLinter' => 'cpp_linter/ArcanistCpplintLinter.php',
-    'BaseDirectoryScopedFormatLinter' => 'cpp_linter/BaseDirectoryScopedFormatLinter.php',
-    'FacebookArcanistConfiguration' => 'config/FacebookArcanistConfiguration.php',
-    'FacebookFbcodeLintEngine' => 'lint_engine/FacebookFbcodeLintEngine.php',
-    'FacebookFbcodeUnitTestEngine' => 'unit_engine/FacebookFbcodeUnitTestEngine.php',
-    'FacebookHowtoevenLintEngine' => 'lint_engine/FacebookHowtoevenLintEngine.php',
-    'FacebookHowtoevenLinter' => 'cpp_linter/FacebookHowtoevenLinter.php',
-    'FbcodeClangFormatLinter' => 'cpp_linter/FbcodeClangFormatLinter.php',
-    'FbcodeCppLinter' => 'cpp_linter/FbcodeCppLinter.php',
-  ),
-  'function' =>
-  array(
-  ),
-  'xmap' =>
-  array(
-    'ArcanistCpplintLinter' => 'ArcanistLinter',
-    'BaseDirectoryScopedFormatLinter' => 'ArcanistLinter',
-    'FacebookArcanistConfiguration' => 'ArcanistConfiguration',
-    'FacebookFbcodeLintEngine' => 'ArcanistLintEngine',
-    'FacebookFbcodeUnitTestEngine' => 'ArcanistBaseUnitTestEngine',
-    'FacebookHowtoevenLintEngine' => 'ArcanistLintEngine',
-    'FacebookHowtoevenLinter' => 'ArcanistLinter',
-    'FbcodeClangFormatLinter' => 'BaseDirectoryScopedFormatLinter',
-    'FbcodeCppLinter' => 'ArcanistLinter',
-  ),
-));

arcanist_util/config/FacebookArcanistConfiguration.php

@@ -1,205 +0,0 @@
-<?php
-// Copyright 2004-present Facebook. All Rights Reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-
-class FacebookArcanistConfiguration extends ArcanistConfiguration {
-
-  public function didRunWorkflow($command,
-                                 ArcanistBaseWorkflow $workflow,
-                                 $error_code) {
-    if ($command == 'diff' && !$workflow->isRawDiffSource()) {
-      $this->startTestsInJenkins($workflow);
-      $this->startTestsInSandcastle($workflow);
-    }
-  }
-
-  //////////////////////////////////////////////////////////////////////
-  /*  Run tests in sandcastle */
-  function postURL($diffID, $url) {
-    $cmd = 'echo \'{"diff_id": "' . $diffID . '", '
-           . '"name":"click here for sandcastle tests for D' . $diffID . '", '
-           . '"link":"' . $url . '"}\' | '
-           . 'http_proxy=fwdproxy.any.facebook.com:8080 '
-           . 'https_proxy=fwdproxy.any.facebook.com:8080 arc call-conduit '
-           . 'differential.updateunitresults';
-    shell_exec($cmd);
-  }
-
-  function updateTestCommand($diffID, $test, $status) {
-    $cmd = 'echo \'{"diff_id": "' . $diffID . '", '
-           . '"name":"' . $test . '", '
-           . '"result":"' . $status . '"}\' | '
-           . 'http_proxy=fwdproxy.any.facebook.com:8080 '
-           . 'https_proxy=fwdproxy.any.facebook.com:8080 arc call-conduit '
-           . 'differential.updateunitresults';
-    return $cmd;
-  }
-
-  function updateTest($diffID, $test) {
-    shell_exec($this->updateTestCommand($diffID, $test, "waiting"));
-  }
-
-  function getSteps($diffID, $username, $test) {
-    $arcrc_content = exec("cat ~/.arcrc | gzip -f | base64 -w0");
-
-    // Sandcastle machines don't have arc setup. We copy the user certificate
-    // and authenticate using that in sandcastle
-    $setup = array(
-      "name" => "Setup arcrc",
-      "shell" => "echo " . $arcrc_content . " | base64 --decode"
-                 . " | gzip -d > ~/.arcrc",
-      "user" => "root"
-    );
-
-    // arc demands certain permission on its config
-    $fix_permission = array(
-      "name" => "Fix environment",
-      "shell" => "chmod 600 ~/.arcrc",
-      "user" => "root"
-    );
-
-    // fbcode is a sub-repo. We cannot patch until we add it to ignore otherwise
-    // git thinks it is uncommited change
-    $fix_git_ignore = array(
-      "name" => "Fix git ignore",
-      "shell" => "echo fbcode >> .git/info/exclude",
-      "user" => "root"
-    );
-
-    // Patch the code (keep your fingures crossed)
-    $patch = array(
-      "name" => "Patch " . $diffID,
-      "shell" => "HTTPS_PROXY=fwdproxy:8080 arc --arcrc-file ~/.arcrc "
-                  . "patch --diff " . $diffID,
-      "user" => "root"
-    );
-
-    // Clean up the user arc config we are using
-    $cleanup = array(
-      "name" => "Arc cleanup",
-      "shell" => "rm -f ~/.arcrc",
-      "user" => "root"
-    );
-
-    // Construct the steps in the order of execution
-    $steps[] = $setup;
-    $steps[] = $fix_permission;
-    $steps[] = $fix_git_ignore;
-    $steps[] = $patch;
-
-    // Run the actual command
-    $this->updateTest($diffID, $test);
-    $cmd = $this->updateTestCommand($diffID, $test, "running") . ";"
-           . "(./build_tools/precommit_checker.py " . $test
-           . "&& "
-           . $this->updateTestCommand($diffID, $test, "pass") . ")"
-           . "|| " . $this->updateTestCommand($diffID, $test, "fail")
-           . "; cat /tmp/precommit-check.log"
-           . "; for f in `ls t/log-*`; do echo \$f; cat \$f; done";
-
-    $run_test = array(
-      "name" => "Run " . $test,
-      "shell" => $cmd,
-      "user" => "root",
-    );
-
-    $steps[] = $run_test;
-    $steps[] = $cleanup;
-
-    return $steps;
-  }
-
-  function startTestsInSandcastle($workflow) {
-    // extract information we need from workflow or CLI
-    $diffID = $workflow->getDiffId();
-    $username = exec("whoami");
-
-    if ($diffID == null || $username == null) {
-      // there is no diff and we can't extract username
-      // we cannot schedule sandcasstle job
-      return;
-    }
-
-    if (strcmp(getenv("ROCKSDB_CHECK_ALL"), 1) == 0) {
-      // extract all tests from the CI definition
-      $output = file_get_contents("build_tools/rocksdb-lego-determinator");
-      preg_match_all('/[ ]{2}([a-zA-Z0-9_]+)[\)]{1}/', $output, $matches);
-      $tests = $matches[1];
-    } else {
-      // manually list of tests we want to run in sandcastle
-      $tests = array(
-        "unit", "unit_481", "clang_unit", "tsan", "asan", "lite", "valgrind"
-      );
-    }
-
-    // construct a job definition for each test and add it to the master plan
-    foreach ($tests as $test) {
-      $arg[] = array(
-        "name" => "RocksDB diff " . $diffID . " test " . $test,
-        "steps" => $this->getSteps($diffID, $username, $test)
-      );
-    }
-
-    // we cannot submit the parallel execution master plan to sandcastle
-    // we need supply the job plan as a determinator
-    // so we construct a small job that will spit out the master job plan
-    // which sandcastle will parse and execute
-    // Why compress ? Otherwise we run over the max string size.
-    $cmd = "echo " . base64_encode(json_encode($arg))
-           . " | gzip -f | base64 -w0";
-    $arg_encoded = shell_exec($cmd);
-
-    $command = array(
-      "name" => "Run diff " . $diffID . "for user " . $username,
-      "steps" => array()
-    );
-
-    $command["steps"][] = array(
-      "name" => "Generate determinator",
-      "shell" => "echo " . $arg_encoded . " | base64 --decode | gzip -d"
-                 . " | base64 --decode",
-      "determinator" => true,
-      "user" => "root"
-    );
-
-    // submit to sandcastle
-    $url = 'https://interngraph.intern.facebook.com/sandcastle/generate?'
-            .'command=SandcastleUniversalCommand'
-            .'&vcs=rocksdb-git&revision=origin%2Fmaster&type=lego'
-            .'&user=krad&alias=rocksdb-precommit'
-            .'&command-args=' . urlencode(json_encode($command));
-
-    $cmd = 'https_proxy= HTTPS_PROXY= curl -s -k -F app=659387027470559 '
-            . '-F token=AeO_3f2Ya3TujjnxGD4 "' . $url . '"';
-
-    $output = shell_exec($cmd);
-
-    // extract sandcastle URL from the response
-    preg_match('/url": "(.+)"/', $output, $sandcastle_url);
-
-    echo "\nSandcastle URL: " . $sandcastle_url[1] . "\n";
-
-    // Ask phabricator to display it on the diff UI
-    $this->postURL($diffID, $sandcastle_url[1]);
-  }
-
-  //////////////////////////////////////////////////////////////////////
-  /* Send off builds to jenkins */
-  function startTestsInJenkins($workflow) {
-    $diffID = $workflow->getDiffID();
-    if ($diffID === null) {
-      return;
-    }
-
-    $results = $workflow->getTestResults();
-    if (!$results) {
-      return;
-    }
-
-    $url = "https://ci-builds.fb.com/view/rocksdb/job/rocksdb_diff_check/"
-               ."buildWithParameters?token=AUTH&DIFF_ID=$diffID";
-    system("curl --noproxy '*' \"$url\" > /dev/null 2>&1");
-  }
-}

arcanist_util/cpp_linter/BaseDirectoryScopedFormatLinter.php

@@ -1,74 +0,0 @@
-<?php
-// Copyright 2004-present Facebook. All Rights Reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-
-abstract class BaseDirectoryScopedFormatLinter extends ArcanistLinter {
-
-  const LINT_FORMATTING = 1;
-
-  private $changedLines = array();
-  private $rawLintOutput = array();
-
-  abstract protected function getPathsToLint();
-
-  protected function shouldLintPath($path) {
-    foreach ($this->getPathsToLint() as $p) {
-      // check if $path starts with $p
-      if (strncmp($path, $p, strlen($p)) === 0) {
-        return true;
-      }
-    }
-    return false;
-  }
-
-  // API to tell this linter which lines were changed
-  final public function setPathChangedLines($path, $changed) {
-    $this->changedLines[$path] = $changed;
-  }
-
-  final public function willLintPaths(array $paths) {
-    $futures = array();
-    foreach ($paths as $path) {
-      if (!$this->shouldLintPath($path)) {
-        continue;
-      }
-
-      $changed = $this->changedLines[$path];
-      if (!isset($changed)) {
-        // do not run linter if there are no changes
-        continue;
-      }
-
-      $futures[$path] = $this->getFormatFuture($path, $changed);
-    }
-
-    foreach (Futures($futures)->limit(8) as $p => $f) {
-      $this->rawLintOutput[$p] = $f->resolvex();
-    }
-  }
-
-  abstract protected function getFormatFuture($path, array $changed);
-  abstract protected function getLintMessage($diff);
-
-  final public function lintPath($path) {
-    if (!isset($this->rawLintOutput[$path])) {
-      return;
-    }
-
-    list($new_content) = $this->rawLintOutput[$path];
-    $old_content = $this->getData($path);
-
-    if ($new_content != $old_content) {
-      $diff = ArcanistDiffUtils::renderDifferences($old_content, $new_content);
-      $this->raiseLintAtOffset(
-        0,
-        self::LINT_FORMATTING,
-        $this->getLintMessage($diff),
-        $old_content,
-        $new_content);
-    }
-  }
-
-}

arcanist_util/cpp_linter/FacebookHowtoevenLinter.php

@@ -1,223 +0,0 @@
-<?php
-// Copyright 2015-present Facebook. All Rights Reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-
-final class FacebookHowtoevenLinter extends ArcanistLinter {
-
-  const VERSION = 'fd9192f324c36d28136d14380f0b552a1385b59b';
-
-  private $parsedTargets = array();
-
-  public function getLinterName() {
-    return 'Howtoeven';
-  }
-
-  protected function getSeverity($code) {
-    $severities = array(
-      ArcanistLintSeverity::SEVERITY_DISABLED,
-      ArcanistLintSeverity::SEVERITY_ADVICE,
-      ArcanistLintSeverity::SEVERITY_WARNING,
-      ArcanistLintSeverity::SEVERITY_ERROR,
-    );
-    return idx($severities, $code, ArcanistLintSeverity::SEVERITY_WARNING);
-  }
-
-  public function willLintPaths(array $paths) {
-    // Cleanup previous runs.
-    $this->localExecx("rm -rf _build/_lint");
-
-    // Build compilation database.
-    $lintable_paths = $this->getLintablePaths($paths);
-    $interesting_paths = $this->getInterestingPaths($lintable_paths);
-
-    if (!$lintable_paths) {
-      return;
-    }
-
-    // Run lint.
-    try {
-      $this->localExecx(
-        "%C %C -p _build/dev/ %Ls",
-        $this->getBinaryPath(),
-        $this->getFilteredIssues(),
-        $lintable_paths);
-    } catch (CommandException $exception) {
-      PhutilConsole::getConsole()->writeErr($exception->getMessage());
-    }
-
-    // Load results.
-    $result = id(
-      new SQLite3(
-        $this->getProjectRoot().'/_build/_lint/lint.db',
-        SQLITE3_OPEN_READONLY))
-      ->query("SELECT * FROM raised_issues");
-
-    while ($issue = $result->fetchArray(SQLITE3_ASSOC)) {
-      // Skip issues not part of the linted file.
-      if (in_array($issue['file'], $interesting_paths)) {
-        $this->addLintMessage(id(new ArcanistLintMessage())
-          ->setPath($issue['file'])
-          ->setLine($issue['line'])
-          ->setChar($issue['column'])
-          ->setCode('Howtoeven')
-          ->setSeverity($this->getSeverity($issue['severity']))
-          ->setName('Hte-'.$issue['name'])
-          ->setDescription(
-            sprintf(
-              "%s\n\n%s",
-              ($issue['message']) ? $issue['message'] : $issue['description'],
-              $issue['explanation']))
-          ->setOriginalText(idx($issue, 'original', ''))
-          ->setReplacementText(idx($issue, 'replacement', '')));
-      }
-    }
-  }
-
-  public function lintPath($path) {
-  }
-
-  /**
-   * Get the paths that we know how to lint.
-   *
-   * The strategy is to first look whether there's an existing compilation
-   * database and use that if it's exhaustive. We generate our own only if
-   * necessary.
-   */
-  private function getLintablePaths($paths) {
-    // Replace headers with existing sources.
-    for ($i = 0; $i < count($paths); $i++) {
-      if (preg_match("/\.h$/", $paths[$i])) {
-        $header = preg_replace("/\.h$/", ".cpp", $paths[$i]);
-        if (file_exists($header)) {
-          $paths[$i] = $header;
-        }
-      }
-    }
-
-    // Check if database exists and is exhaustive.
-    $available_paths = $this->getAvailablePaths();
-    $lintable_paths = array_intersect($paths, $available_paths);
-    if ($paths === $lintable_paths) {
-      return $lintable_paths;
-    }
-
-    // Generate our own database.
-    $targets = $this->getTargetsFor($paths);
-    if (!$targets) {
-      PhutilConsole::getConsole()->writeErr(
-        "No build targets found for %s\n",
-        implode(', ', $paths));
-      return array();
-    }
-
-    $this->localExecx("./tools/build/bin/fbconfig.par -r %Ls", $targets);
-    $this->localExecx("./tools/build/bin/fbmake.par gen_cdb");
-
-    $available_paths = $this->getAvailablePaths();
-    $lintable_paths = array_intersect($paths, $available_paths);
-    if ($paths != $lintable_paths) {
-      PhutilConsole::getConsole()->writeErr(
-        "Can't lint %s\n",
-        implode(', ', array_diff($paths, $available_paths)));
-    }
-
-    // Return what we know how to lint.
-    return $lintable_paths;
-  }
-
-  /**
-   * Get the available paths in the current compilation database.
-   */
-  private function getAvailablePaths() {
-    $database_path = $this->getProjectRoot()
-      .'/_build/dev/compile_commands.json';
-    if (!file_exists($database_path)) {
-      return array();
-    }
-
-    $entries = json_decode(file_get_contents($database_path), true);
-    $paths = array();
-    foreach ($entries as $entry) {
-      $paths[] = $entry['file'];
-    }
-    return $paths;
-  }
-
-  /**
-   * Search for the targets directories for the given files.
-   */
-  private static function getTargetsFor($paths) {
-    $targets = array();
-    foreach ($paths as $path) {
-      while (($path = dirname($path)) !== '.') {
-        if (in_array('TARGETS', scandir($path))) {
-          $contents = file_get_contents($path.'/TARGETS');
-          if (strpos($contents, 'cpp_binary') !== false) {
-            $targets[] = $path;
-            break;
-          }
-        }
-      }
-    }
-    return array_unique($targets);
-  }
-
-  /**
-   * The paths that we actually want to report on.
-   */
-  private function getInterestingPaths($paths) {
-    $headers = array();
-    foreach ($paths as $path) {
-      $headers[] = preg_replace("/\.cpp$/", ".h", $path);
-    }
-    return array_merge($paths, $headers);
-  }
-
-  /**
-   * The path where the binary is located. Will return the current dewey binary
-   * unless the `HOWTOEVEN_BUILD` environment variable is set.
-   */
-  private function getBinaryPath() {
-    $path = sprintf(
-      "/mnt/dewey/fbcode/.commits/%s/builds/howtoeven/client",
-      self::VERSION);
-
-    $build = getenv('HOWTOEVEN_BUILD');
-    if ($build) {
-      $path = sprintf(
-        "./_build/%s/tools/howtoeven/client",
-        $build);
-      if (!file_exists($path)) {
-        PhutilConsole::getConsole()->writeErr(">> %s does not exist\n", $path);
-        exit(1);
-      }
-    }
-
-    return $path;
-  }
-
-  /**
-   * Execute the command in the root directory.
-   */
-  private function localExecx($command /* , ... */) {
-    $arguments = func_get_args();
-    return newv('ExecFuture', $arguments)
-      ->setCWD($this->getProjectRoot())
-      ->resolvex();
-  }
-
-  /**
-   * The root of the project.
-   */
-  private function getProjectRoot() {
-    return $this->getEngine()->getWorkingCopy()->getProjectRoot();
-  }
-
-  private function getFilteredIssues() {
-    $issues = getenv('HOWTOEVEN_ISSUES');
-    return ($issues) ? csprintf('-issues %s', $issues) : '';
-  }
-
-}

arcanist_util/cpp_linter/FbcodeClangFormatLinter.php

@@ -1,58 +0,0 @@
-<?php
-// Copyright 2004-present Facebook. All Rights Reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-
-final class FbcodeClangFormatLinter extends BaseDirectoryScopedFormatLinter {
-
-  const LINT_FORMATTING = 1;
-  const CLANG_FORMAT_BINARY = '/mnt/vol/engshare/admin/scripts/clang-format';
-
-  protected function getPathsToLint() {
-    return array('');
-  }
-
-  public function getLinterName() {
-    return 'CLANG_FORMAT';
-  }
-
-  public function getLintSeverityMap() {
-    return array(
-      self::LINT_FORMATTING => ArcanistLintSeverity::SEVERITY_ADVICE,
-    );
-  }
-
-  public function getLintNameMap() {
-    return array(
-      self::LINT_FORMATTING => pht('Changes are not clang-formatted'),
-    );
-  }
-
-  protected function getFormatFuture($path, array $changed) {
-    $args = "";
-    foreach ($changed as $key => $value) {
-      $args .= " --lines=$key:$key";
-    }
-
-    $binary = self::CLANG_FORMAT_BINARY;
-    if (!file_exists($binary)) {
-      // trust the $PATH
-      $binary = "clang-format";
-    }
-
-    return new ExecFuture(
-      "%s %s $args",
-      $binary,
-      $this->getEngine()->getFilePathOnDisk($path));
-  }
-
-  protected function getLintMessage($diff) {
-    $link_to_clang_format =
-      "[[ http://fburl.com/clang-format | clang-format ]]";
-    return <<<LINT_MSG
-Changes in this file were not formatted using $link_to_clang_format.
-Please run build_tools/format-diff.sh or `make format`
-LINT_MSG;
-  }
-}

arcanist_util/cpp_linter/FbcodeCppLinter.php

@@ -1,126 +0,0 @@
-<?php
-// Copyright 2004-present Facebook.  All rights reserved.
-
-class FbcodeCppLinter extends ArcanistLinter {
-  const FLINT      = "/home/engshare/tools/flint";
-  const LINT_ERROR   = 1;
-  const LINT_WARNING = 2;
-  const LINT_ADVICE  = 3;
-  const C_FLAG = "--c_mode=true";
-
-  private $rawLintOutput = array();
-
-  public function willLintPaths(array $paths) {
-    if (!file_exists(self::FLINT)) {
-      return;
-    }
-    $futures = array();
-    foreach ($paths as $p) {
-      $lpath = $this->getEngine()->getFilePathOnDisk($p);
-      $lpath_file = file($lpath);
-      if (preg_match('/\.(c)$/', $lpath) ||
-          preg_match('/-\*-.*Mode: C[; ].*-\*-/', $lpath_file[0]) ||
-          preg_match('/vim(:.*)*:\s*(set\s+)?filetype=c\s*:/', $lpath_file[0])
-          ) {
-        $futures[$p] = new ExecFuture("%s %s %s 2>&1",
-                           self::FLINT, self::C_FLAG,
-                           $this->getEngine()->getFilePathOnDisk($p));
-      } else {
-        $futures[$p] = new ExecFuture("%s %s 2>&1",
-          self::FLINT, $this->getEngine()->getFilePathOnDisk($p));
-      }
-    }
-
-    foreach (Futures($futures)->limit(8) as $p => $f) {
-      $this->rawLintOutput[$p] = $f->resolvex();
-    }
-
-    return;
-  }
-
-  public function getLinterName() {
-    return "FBCPP";
-  }
-
-  public function lintPath($path) {
-    $this->runCppLint($path);
-  }
-
-  private function runCppLint($path) {
-    $msgs = $this->getCppLintOutput($path);
-    foreach ($msgs as $m) {
-      $this->raiseLintAtLine($m['line'], 0, $m['severity'], $m['msg']);
-    }
-  }
-
-  private function adviseOnEachPattern(
-    $path,
-    $regex,
-    $message,
-    $lint_type = self::LINT_ADVICE,
-    $match_idx = 0) {
-      $file_data = $this->getData($path);
-      $matches = array();
-      if (!preg_match_all($regex, $file_data, $matches, PREG_OFFSET_CAPTURE)) {
-        return;
-      }
-
-      foreach ($matches[$match_idx] as $match) {
-        list($match_str, $offset) = $match;
-        $this->raiseLintAtOffset($offset, $lint_type, $message, $match_str);
-      }
-  }
-
-  public function getLintSeverityMap() {
-    return array(
-      self::LINT_WARNING => ArcanistLintSeverity::SEVERITY_WARNING,
-      self::LINT_ADVICE  => ArcanistLintSeverity::SEVERITY_ADVICE,
-      self::LINT_ERROR   => ArcanistLintSeverity::SEVERITY_ERROR
-    );
-  }
-
-  public function getLintNameMap() {
-    return array(
-      self::LINT_ADVICE   => "CppLint Advice",
-      self::LINT_WARNING  => "CppLint Warning",
-      self::LINT_ERROR    => "CppLint Error"
-    );
-  }
-
-  private function getCppLintOutput($path) {
-     if (!array_key_exists($path, $this->rawLintOutput)) {
-       return array();
-     }
-    list($output) = $this->rawLintOutput[$path];
-
-    $msgs = array();
-    $current = null;
-    $matches = array();
-    foreach (explode("\n", $output) as $line) {
-      if (preg_match('/.*?:(\d+):(.*)/', $line, $matches)) {
-        if ($current) {
-          $msgs[] = $current;
-        }
-        $line = $matches[1];
-        $text = $matches[2];
-        if (preg_match('/.*Warning.*/', $text)) {
-          $sev = self::LINT_WARNING;
-        } else if (preg_match('/.*Advice.*/', $text)) {
-          $sev = self::LINT_ADVICE;
-        } else {
-          $sev = self::LINT_ERROR;
-        }
-        $current = array('line'     => $line,
-                         'msg'      => $text,
-                         'severity' => $sev);
-      } else if ($current) {
-        $current['msg'] .= ' ' . $line;
-      }
-    }
-    if ($current) {
-      $msgs[] = $current;
-    }
-
-    return $msgs;
-  }
-}

arcanist_util/lint_engine/FacebookHowtoevenLintEngine.php

@@ -1,27 +0,0 @@
-<?php
-// Copyright 2015-present Facebook. All Rights Reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-
-final class FacebookHowtoevenLintEngine extends ArcanistLintEngine {
-
-  public function buildLinters() {
-    $paths = array();
-
-    foreach ($this->getPaths() as $path) {
-      // Don't try to lint deleted files or changed directories.
-      if (!Filesystem::pathExists($path) || is_dir($path)) {
-        continue;
-      }
-
-      if (preg_match('/\.(cpp|c|cc|cxx|h|hh|hpp|hxx|tcc)$/', $path)) {
-        $paths[] = $path;
-      }
-    }
-
-    $howtoeven = new FacebookHowtoevenLinter();
-    $howtoeven->setPaths($paths);
-    return array($howtoeven);
-  }
-}

arcanist_util/unit_engine/FacebookFbcodeUnitTestEngine.php

@@ -1,21 +0,0 @@
-<?php
-// Copyright 2004-present Facebook. All Rights Reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-
-class FacebookFbcodeUnitTestEngine extends ArcanistBaseUnitTestEngine {
-
-  public function run() {
-    // Here we create a new unit test "jenkins_async_test" and promise we'll
-    // update the results later.
-    // Jenkins updates the results using `arc call-conduit
-    // differential.updateunitresults` call. If you change the name here, also
-    // make sure to change the name in Jenkins script that updates the test
-    // result -- they have to be the same.
-    $result = new ArcanistUnitTestResult();
-    $result->setName("jenkins_async_test");
-    $result->setResult(ArcanistUnitTestResult::RESULT_POSTPONED);
-    return array($result);
-  }
-}

build_tools/amalgamate.py

@@ -1,110 +0,0 @@
-#!/usr/bin/python
-
-# amalgamate.py creates an amalgamation from a unity build.
-# It can be run with either Python 2 or 3.
-# An amalgamation consists of a header that includes the contents of all public
-# headers and a source file that includes the contents of all source files and
-# private headers.
-#
-# This script works by starting with the unity build file and recursively expanding
-# #include directives. If the #include is found in a public include directory,
-# that header is expanded into the amalgamation header.
-#
-# A particular header is only expanded once, so this script will
-# break if there are multiple inclusions of the same header that are expected to
-# expand differently. Similarly, this type of code causes issues:
-#
-# #ifdef FOO
-#   #include "bar.h"
-#   // code here
-# #else
-#   #include "bar.h"            // oops, doesn't get expanded
-#   // different code here
-# #endif
-#
-# The solution is to move the include out of the #ifdef.
-
-from __future__ import print_function
-
-import argparse
-from os import path
-import re
-import sys
-
-include_re = re.compile('^[ \t]*#include[ \t]+"(.*)"[ \t]*$')
-included = set()
-excluded = set()
-
-def find_header(name, abs_path, include_paths):
-    samedir = path.join(path.dirname(abs_path), name)
-    if path.exists(samedir):
-        return samedir
-    for include_path in include_paths:
-        include_path = path.join(include_path, name)
-        if path.exists(include_path):
-            return include_path
-    return None
-
-def expand_include(include_path, f, abs_path, source_out, header_out, include_paths, public_include_paths):
-    if include_path in included:
-        return False
-
-    included.add(include_path)
-    with open(include_path) as f:
-        print('#line 1 "{}"'.format(include_path), file=source_out)
-        process_file(f, include_path, source_out, header_out, include_paths, public_include_paths)
-    return True
-
-def process_file(f, abs_path, source_out, header_out, include_paths, public_include_paths):
-    for (line, text) in enumerate(f):
-        m = include_re.match(text)
-        if m:
-            filename = m.groups()[0]
-            # first check private headers
-            include_path = find_header(filename, abs_path, include_paths)
-            if include_path:
-                if include_path in excluded:
-                    source_out.write(text)
-                    expanded = False
-                else:
-                    expanded = expand_include(include_path, f, abs_path, source_out, header_out, include_paths, public_include_paths)
-            else:
-                # now try public headers
-                include_path = find_header(filename, abs_path, public_include_paths)
-                if include_path:
-                    # found public header
-                    expanded = False
-                    if include_path in excluded:
-                        source_out.write(text)
-                    else:
-                        expand_include(include_path, f, abs_path, header_out, None, public_include_paths, [])
-                else:
-                    sys.exit("unable to find {}, included in {} on line {}".format(filename, abs_path, line))
-
-            if expanded:
-                print('#line {} "{}"'.format(line+1, abs_path), file=source_out)
-        elif text != "#pragma once\n":
-            source_out.write(text)
-
-def main():
-    parser = argparse.ArgumentParser(description="Transform a unity build into an amalgamation")
-    parser.add_argument("source", help="source file")
-    parser.add_argument("-I", action="append", dest="include_paths", help="include paths for private headers")
-    parser.add_argument("-i", action="append", dest="public_include_paths", help="include paths for public headers")
-    parser.add_argument("-x", action="append", dest="excluded", help="excluded header files")
-    parser.add_argument("-o", dest="source_out", help="output C++ file", required=True)
-    parser.add_argument("-H", dest="header_out", help="output C++ header file", required=True)
-    args = parser.parse_args()
-
-    include_paths = list(map(path.abspath, args.include_paths or []))
-    public_include_paths = list(map(path.abspath, args.public_include_paths or []))
-    excluded.update(map(path.abspath, args.excluded or []))
-    filename = args.source
-    abs_path = path.abspath(filename)
-    with open(filename) as f, open(args.source_out, 'w') as source_out, open(args.header_out, 'w') as header_out:
-        print('#line 1 "{}"'.format(filename), file=source_out)
-        print('#include "{}"'.format(header_out.name), file=source_out)
-        process_file(f, abs_path, source_out, header_out, include_paths, public_include_paths)
-
-if __name__ == "__main__":
-    main()

build_tools/build_detect_platform

@@ -8,7 +8,6 @@
 #   CXX                         C++ Compiler path
 #   PLATFORM_LDFLAGS            Linker flags
 #   JAVA_LDFLAGS                Linker flags for RocksDBJava
-#   JAVA_STATIC_LDFLAGS         Linker flags for RocksDBJava static build
 #   PLATFORM_SHARED_EXT         Extension for shared libraries
 #   PLATFORM_SHARED_LDFLAGS     Flags for building shared library
 #   PLATFORM_SHARED_CFLAGS      Flags for compiling objects for shared library
@@ -23,7 +22,6 @@
 #       -DLEVELDB_PLATFORM_NOATOMIC if it is not
 #       -DSNAPPY                    if the Snappy library is present
 #       -DLZ4                       if the LZ4 library is present
-#       -DZSTD                      if the ZSTD library is present
 #       -DNUMA                      if the NUMA library is present
 #
 # Using gflags in rocksdb:
@@ -34,7 +32,7 @@
 #   2. Once install, add the include path/lib path for gflags to CPATH and
 #      LIBRARY_PATH respectively. If installed with default mode, the
 #      lib and include path will be /usr/local/lib and /usr/local/include
-# Mac user can do this by having brew installed and running brew install gflags
+# Mac user can do this by running build_tools/mac-install-gflags.sh
 
 OUTPUT=$1
 if test -z "$OUTPUT"; then
@@ -45,14 +43,16 @@ fi
 # we depend on C++11
 PLATFORM_CXXFLAGS="-std=c++11"
 # we currently depend on POSIX platform
-COMMON_FLAGS="-DROCKSDB_PLATFORM_POSIX -DROCKSDB_LIB_IO_POSIX"
+COMMON_FLAGS="-DROCKSDB_PLATFORM_POSIX"
 
 # Default to fbcode gcc on internal fb machines
 if [ -z "$ROCKSDB_NO_FBCODE" -a -d /mnt/gvfs/third-party ]; then
     FBCODE_BUILD="true"
-    # If we're compiling with TSAN we need pic build
-    PIC_BUILD=$COMPILE_WITH_TSAN
-    source "$PWD/build_tools/fbcode_config.sh"
+    if [ -z "$USE_CLANG" ]; then
+        source $PWD/build_tools/fbcode_config.sh
+    else
+        source "$PWD/build_tools/fbcode.clang31.sh"
+    fi
 fi
 
 # Delete existing output, if it exists
@@ -72,26 +72,15 @@ if test -z "$TARGET_OS"; then
     TARGET_OS=`uname -s`
 fi
 
-if test -z "$TARGET_ARCHITECTURE"; then
-    TARGET_ARCHITECTURE=`uname -m`
-fi
-
-if test -z "$CLANG_SCAN_BUILD"; then
-    CLANG_SCAN_BUILD=scan-build
-fi
-
-if test -z "$CLANG_ANALYZER"; then
-    CLANG_ANALYZER=$(which clang++ 2> /dev/null)
-fi
-
 COMMON_FLAGS="$COMMON_FLAGS ${CFLAGS}"
 CROSS_COMPILE=
 PLATFORM_CCFLAGS=
+PLATFORM_CXXFLAGS="$PLATFORM_CXXFLAGS ${CXXFLAGS}"
 PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS"
 PLATFORM_SHARED_EXT="so"
-PLATFORM_SHARED_LDFLAGS="-Wl,--no-as-needed -shared -Wl,-soname -Wl,"
+PLATFORM_SHARED_LDFLAGS="-shared -Wl,-soname -Wl,"
 PLATFORM_SHARED_CFLAGS="-fPIC"
-PLATFORM_SHARED_VERSIONED=true
+PLATFORM_SHARED_VERSIONED=false
 
 # generic port files (working on all platform by #ifdef) go directly in /port
 GENERIC_PORT_FILES=`cd "$ROCKSDB_ROOT"; find port -name '*.cc' | tr "\n" " "`
@@ -111,7 +100,6 @@ case "$TARGET_OS" in
         PLATFORM_SHARED_EXT=dylib
         PLATFORM_SHARED_LDFLAGS="-dynamiclib -install_name "
         CROSS_COMPILE=true
-        PLATFORM_SHARED_VERSIONED=
         ;;
     Linux)
         PLATFORM=OS_LINUX
@@ -152,17 +140,6 @@ case "$TARGET_OS" in
         PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lpthread"
         # PORT_FILES=port/dragonfly/dragonfly_specific.cc
         ;;
-    Cygwin)
-        PLATFORM=CYGWIN
-        PLATFORM_SHARED_CFLAGS=""
-        PLATFORM_CXXFLAGS="-std=gnu++11"
-        COMMON_FLAGS="$COMMON_FLAGS -DCYGWIN"
-        if [ -z "$USE_CLANG" ]; then
-            COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp"
-        fi
-        PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lpthread -lrt"
-        # PORT_FILES=port/linux/linux_specific.cc
-        ;;
     OS_ANDROID_CROSSCOMPILE)
         PLATFORM=OS_ANDROID
 	COMMON_FLAGS="$COMMON_FLAGS -fno-builtin-memcmp -D_REENTRANT -DOS_ANDROID -DLEVELDB_PLATFORM_POSIX"
@@ -175,28 +152,55 @@ case "$TARGET_OS" in
         exit 1
 esac
 
-PLATFORM_CXXFLAGS="$PLATFORM_CXXFLAGS ${CXXFLAGS}"
 JAVA_LDFLAGS="$PLATFORM_LDFLAGS"
-JAVA_STATIC_LDFLAGS="$PLATFORM_LDFLAGS"
+
+if test -z "$DO_NOT_RUN_BUILD_DETECT_VERSION"; then
+  "$PWD/build_tools/build_detect_version"
+fi
+
+# We want to make a list of all cc files within util, db, table, and helpers
+# except for the test and benchmark files. By default, find will output a list
+# of all files matching either rule, so we need to append -print to make the
+# prune take effect.
+DIRS="util db table utilities"
+
+set -f # temporarily disable globbing so that our patterns arent expanded
+PRUNE_TEST="-name *test*.cc -prune"
+PRUNE_BENCH="-name *bench*.cc -prune"
+PORTABLE_FILES=`cd "$ROCKSDB_ROOT"; find $DIRS $PRUNE_TEST -o $PRUNE_BENCH -o -name '*.cc' -print | sort | tr "\n" " "`
+PORTABLE_CPP=`cd "$ROCKSDB_ROOT"; find $DIRS $PRUNE_TEST -o $PRUNE_BENCH -o -name '*.cpp' -print | sort | tr "\n" " "`
+set +f # re-enable globbing
+
+# The sources consist of the portable files, plus the platform-specific port
+# file.
+echo "SOURCES=$PORTABLE_FILES $GENERIC_PORT_FILES $PORT_FILES" >> "$OUTPUT"
+echo "SOURCESCPP=$PORTABLE_CPP" >> "$OUTPUT"
+echo "MEMENV_SOURCES=helpers/memenv/memenv.cc" >> "$OUTPUT"
 
 if [ "$CROSS_COMPILE" = "true" -o "$FBCODE_BUILD" = "true" ]; then
     # Cross-compiling; do not try any compilation tests.
     # Also don't need any compilation tests if compiling on fbcode
     true
 else
-    if ! test $ROCKSDB_DISABLE_FALLOCATE; then
-        # Test whether fallocate is available
-        $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null  <<EOF
-          #include <fcntl.h>
-          #include <linux/falloc.h>
-          int main() {
-      int fd = open("/dev/null", 0);
-      fallocate(fd, FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE, 0, 1024);
-          }
+    # If -std=c++0x works, use <atomic>.  Otherwise use port_posix.h.
+    $CXX $CFLAGS -std=c++0x -x c++ - -o /dev/null 2>/dev/null  <<EOF
+      #include <atomic>
+      int main() {}
 EOF
-        if [ "$?" = 0 ]; then
-            COMMON_FLAGS="$COMMON_FLAGS -DROCKSDB_FALLOCATE_PRESENT"
-        fi
+    if [ "$?" = 0 ]; then
+        COMMON_FLAGS="$COMMON_FLAGS -DROCKSDB_ATOMIC_PRESENT"
+    fi
+
+    # Test whether fallocate is available
+    $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null  <<EOF
+      #include <fcntl.h>
+      int main() {
+	int fd = open("/dev/null", 0);
+	fallocate(fd, 0, 0, 1024);
+      }
+EOF
+    if [ "$?" = 0 ]; then
+        COMMON_FLAGS="$COMMON_FLAGS -DROCKSDB_FALLOCATE_PRESENT"
     fi
 
     # Test whether Snappy library is installed
@@ -211,10 +215,11 @@ EOF
         JAVA_LDFLAGS="$JAVA_LDFLAGS -lsnappy"
     fi
 
+
     # Test whether gflags library is installed
-    # http://gflags.github.io/gflags/
+    # http://code.google.com/p/gflags/
     # check if the namespace is gflags
-    $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null << EOF
+    $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null  <<EOF
       #include <gflags/gflags.h>
       using namespace gflags;
       int main() {}
@@ -222,17 +227,17 @@ EOF
     if [ "$?" = 0 ]; then
         COMMON_FLAGS="$COMMON_FLAGS -DGFLAGS=gflags"
         PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lgflags"
-    else
-      # check if namespace is google
-      $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null << EOF
-        #include <gflags/gflags.h>
-        using namespace google;
-        int main() {}
+    fi
+
+    # check if namespace is google
+    $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null  <<EOF
+      #include <gflags/gflags.h>
+      using namespace google;
+      int main() {}
 EOF
-      if [ "$?" = 0 ]; then
-          COMMON_FLAGS="$COMMON_FLAGS -DGFLAGS=google"
-          PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lgflags"
-      fi
+    if [ "$?" = 0 ]; then
+        COMMON_FLAGS="$COMMON_FLAGS -DGFLAGS=gflags"
+        PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lgflags"
     fi
 
     # Test whether zlib library is installed
@@ -269,17 +274,6 @@ EOF
         JAVA_LDFLAGS="$JAVA_LDFLAGS -llz4"
     fi
 
-    # Test whether zstd library is installed
-    $CXX $CFLAGS $COMMON_FLAGS -x c++ - -o /dev/null 2>/dev/null  <<EOF
-      #include <zstd.h>
-      int main() {}
-EOF
-    if [ "$?" = 0 ]; then
-        COMMON_FLAGS="$COMMON_FLAGS -DZSTD"
-        PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -lzstd"
-        JAVA_LDFLAGS="$JAVA_LDFLAGS -lzstd"
-    fi
-
     # Test whether numa is available
     $CXX $CFLAGS -x c++ - -o /dev/null -lnuma 2>/dev/null  <<EOF
       #include <numa.h>
@@ -292,45 +286,16 @@ EOF
         JAVA_LDFLAGS="$JAVA_LDFLAGS -lnuma"
     fi
 
-    # Test whether jemalloc is available
-    if echo 'int main() {}' | $CXX $CFLAGS -x c++ - -o /dev/null -ljemalloc \
-      2>/dev/null; then 
-        PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -ljemalloc"
-        JAVA_LDFLAGS="$JAVA_LDFLAGS -ljemalloc"
-    else
-        # jemalloc is not available. Let's try tcmalloc
-        if echo 'int main() {}' | $CXX $CFLAGS -x c++ - -o /dev/null \
-          -ltcmalloc 2>/dev/null; then 
-            PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -ltcmalloc"
-            JAVA_LDFLAGS="$JAVA_LDFLAGS -ltcmalloc"
-        fi
-    fi
-
-    # Test whether malloc_usable_size is available
-    $CXX $CFLAGS -x c++ - -o /dev/null 2>/dev/null  <<EOF
-      #include <malloc.h>
-      int main() {
-        size_t res = malloc_usable_size(0);
-        return 0;
-      }
+    # Test whether tcmalloc is available
+    $CXX $CFLAGS -x c++ - -o /dev/null -ltcmalloc 2>/dev/null  <<EOF
+      int main() {}
 EOF
     if [ "$?" = 0 ]; then
-        COMMON_FLAGS="$COMMON_FLAGS -DROCKSDB_MALLOC_USABLE_SIZE"
+        PLATFORM_LDFLAGS="$PLATFORM_LDFLAGS -ltcmalloc"
+        JAVA_LDFLAGS="$JAVA_LDFLAGS -ltcmalloc"
     fi
 fi
 
-# TODO(tec): Fix -Wshorten-64-to-32 errors on FreeBSD and enable the warning.
-# -Wshorten-64-to-32 breaks compilation on FreeBSD i386
-if ! [ "$TARGET_OS" = FreeBSD -a "$TARGET_ARCHITECTURE" = i386 ]; then
-  # Test whether -Wshorten-64-to-32 is available
-  $CXX $CFLAGS -x c++ - -o /dev/null -Wshorten-64-to-32 2>/dev/null  <<EOF
-    int main() {}
-EOF
-  if [ "$?" = 0 ]; then
-    COMMON_FLAGS="$COMMON_FLAGS -Wshorten-64-to-32"
-  fi
-fi
-
 # shall we use HDFS?
 
 if test "$USE_HDFS"; then
@@ -339,7 +304,7 @@ if test "$USE_HDFS"; then
     exit 1
   fi
   HDFS_CCFLAGS="$HDFS_CCFLAGS -I$JAVA_HOME/include -I$JAVA_HOME/include/linux -DUSE_HDFS"
-  HDFS_LDFLAGS="$HDFS_LDFLAGS -lhdfs -L$JAVA_HOME/jre/lib/amd64"
+  HDFS_LDFLAGS="$HDFS_LDFLAGS -Wl,--no-whole-archive -lhdfs -L$JAVA_HOME/jre/lib/amd64"
   HDFS_LDFLAGS="$HDFS_LDFLAGS -L$JAVA_HOME/jre/lib/amd64/server -L$GLIBC_RUNTIME_PATH/lib"
   HDFS_LDFLAGS="$HDFS_LDFLAGS -ldl -lverify -ljava -ljvm"
   COMMON_FLAGS="$COMMON_FLAGS $HDFS_CCFLAGS"
@@ -347,25 +312,8 @@ if test "$USE_HDFS"; then
   JAVA_LDFLAGS="$JAVA_LDFLAGS $HDFS_LDFLAGS"
 fi
 
-if [ "$TARGET_OS" = FreeBSD -a "$TARGET_ARCHITECTURE" = i386 ]; then
-  # Intel SSE instructions breaks compilation on FreeBSD i386
-  unset USE_SSE
-fi
-
-if test "$USE_SSE"; then
-  # if Intel SSE instruction set is supported, set USE_SSE=1
-  COMMON_FLAGS="$COMMON_FLAGS -msse -msse4.2 "
-elif test -z "$PORTABLE"; then
-  if test -n "`echo $TARGET_ARCHITECTURE | grep ^ppc64`"; then
-    # Tune for this POWER processor, treating '+' models as base models
-    POWER=`LD_SHOW_AUXV=1 /bin/true | grep AT_PLATFORM | grep -E -o power[0-9]+`
-    COMMON_FLAGS="$COMMON_FLAGS -mcpu=$POWER -mtune=$POWER "
-  elif test -n "`echo $TARGET_ARCHITECTURE | grep ^s390x`"; then
-    COMMON_FLAGS="$COMMON_FLAGS -march=z10 "
-  else
-    COMMON_FLAGS="$COMMON_FLAGS -march=native "
-  fi
-fi
+# if Intel SSE instruction set is supported, set USE_SSE=" -msse -msse4.2 "
+COMMON_FLAGS="$COMMON_FLAGS $USE_SSE"
 
 PLATFORM_CCFLAGS="$PLATFORM_CCFLAGS $COMMON_FLAGS"
 PLATFORM_CXXFLAGS="$PLATFORM_CXXFLAGS $COMMON_FLAGS"
@@ -381,7 +329,6 @@ echo "CXX=$CXX" >> "$OUTPUT"
 echo "PLATFORM=$PLATFORM" >> "$OUTPUT"
 echo "PLATFORM_LDFLAGS=$PLATFORM_LDFLAGS" >> "$OUTPUT"
 echo "JAVA_LDFLAGS=$JAVA_LDFLAGS" >> "$OUTPUT"
-echo "JAVA_STATIC_LDFLAGS=$JAVA_STATIC_LDFLAGS" >> "$OUTPUT"
 echo "VALGRIND_VER=$VALGRIND_VER" >> "$OUTPUT"
 echo "PLATFORM_CCFLAGS=$PLATFORM_CCFLAGS" >> "$OUTPUT"
 echo "PLATFORM_CXXFLAGS=$PLATFORM_CXXFLAGS" >> "$OUTPUT"
@@ -395,5 +342,3 @@ echo "JEMALLOC_LIB=$JEMALLOC_LIB" >> "$OUTPUT"
 echo "ROCKSDB_MAJOR=$ROCKSDB_MAJOR" >> "$OUTPUT"
 echo "ROCKSDB_MINOR=$ROCKSDB_MINOR" >> "$OUTPUT"
 echo "ROCKSDB_PATCH=$ROCKSDB_PATCH" >> "$OUTPUT"
-echo "CLANG_SCAN_BUILD=$CLANG_SCAN_BUILD" >> "$OUTPUT"
-echo "CLANG_ANALYZER=$CLANG_ANALYZER" >> "$OUTPUT"

build_tools/build_detect_version

@@ -0,0 +1,22 @@
+#!/bin/sh
+#
+# Record the version of the source that we are compiling.
+# We keep a record of the git revision in util/version.cc. This source file
+# is then built as a regular source file as part of the compilation process.
+# One can run "strings executable_filename | grep _build_" to find the version of
+# the source that we used to build the executable file.
+
+OUTFILE="$PWD/util/build_version.cc"
+
+GIT_SHA=""
+if command -v git >/dev/null 2>&1; then
+    GIT_SHA=$(git rev-parse HEAD 2>/dev/null)
+fi
+
+cat > "${OUTFILE}" <<EOF
+#include "build_version.h"
+const char* rocksdb_build_git_sha = "rocksdb_build_git_sha:${GIT_SHA}";
+const char* rocksdb_build_git_datetime = "rocksdb_build_git_datetime:$(date)";
+const char* rocksdb_build_compile_date = __DATE__;
+const char* rocksdb_build_compile_time = __TIME__;
+EOF

build_tools/dependencies_4.8.1.sh

@@ -1,16 +0,0 @@
-GCC_BASE=/mnt/gvfs/third-party2/gcc/ebc96bc2fb751b5a0300b8d91a95bdf24ac1d88b/4.8.1/centos6-native/cc6c9dc
-CLANG_BASE=/mnt/gvfs/third-party2/clang/fc904e50a9266b9d7b98cae1993afa0c5aae1440/3.7.1/centos6-native/9d9ecb9/
-LIBGCC_BASE=/mnt/gvfs/third-party2/libgcc/ea2fd1278810d3af2ea52218d2767e09d786dbd0/4.8.1/gcc-4.8.1-glibc-2.17/8aac7fc
-GLIBC_BASE=/mnt/gvfs/third-party2/glibc/f5484f168c0e4d19823d41df052c5870c6e575a4/2.17/gcc-4.8.1-glibc-2.17/99df8fc
-SNAPPY_BASE=/mnt/gvfs/third-party2/snappy/cbf6f1f209e5bd160bdc5d971744e039f36b1566/1.1.3/gcc-4.8.1-glibc-2.17/c3f970a
-ZLIB_BASE=/mnt/gvfs/third-party2/zlib/6d39cb54708049f527e713ad19f2aadb9d3667e8/1.2.8/gcc-4.8.1-glibc-2.17/c3f970a
-BZIP2_BASE=/mnt/gvfs/third-party2/bzip2/2ddd45f0853bfc8bb1c27f0f447236a1a26c338a/1.0.6/gcc-4.8.1-glibc-2.17/c3f970a
-LZ4_BASE=/mnt/gvfs/third-party2/lz4/6858fac689e0f92e584224d91bdb0e39f6c8320d/r131/gcc-4.8.1-glibc-2.17/c3f970a
-ZSTD_BASE=/mnt/gvfs/third-party2/zstd/cb6c4880fcb4fee471574ba6af63a3882155a16a/0.5.1/gcc-4.8.1-glibc-2.17/c3f970a
-GFLAGS_BASE=/mnt/gvfs/third-party2/gflags/c7275a4ceae0aca0929e56964a31dafc53c1ee96/2.1.1/gcc-4.8.1-glibc-2.17/c3f970a
-JEMALLOC_BASE=/mnt/gvfs/third-party2/jemalloc/40791a3fef9206a77f2c4bc51f8169e5bf10d68e/master/gcc-4.8.1-glibc-2.17/8d31e51
-NUMA_BASE=/mnt/gvfs/third-party2/numa/ae54a5ed22cdabb1c6446dce4e8ffae5b4446d73/2.0.8/gcc-4.8.1-glibc-2.17/c3f970a
-LIBUNWIND_BASE=/mnt/gvfs/third-party2/libunwind/303048f72efc92ae079e62dfc84823401aecfd94/trunk/gcc-4.8.1-glibc-2.17/675d945
-KERNEL_HEADERS_BASE=/mnt/gvfs/third-party2/kernel-headers/1a48835975c66d30e47770ec419758ed3b9ba010/3.10.62-62_fbk17_03959_ge29cc63/gcc-4.8.1-glibc-2.17/da39a3e
-BINUTILS_BASE=/mnt/gvfs/third-party2/binutils/a5b8152b2a15ce8a98808cf954fbccec825a97bc/2.25/centos6-native/da39a3e
-VALGRIND_BASE=/mnt/gvfs/third-party2/valgrind/af85c56f424cd5edfc2c97588299b44ecdec96bb/3.8.1/gcc-4.8.1-glibc-2.17/c3f970a

build_tools/dockerbuild.sh

@@ -1,2 +0,0 @@
-#!/bin/bash
-docker run -v $PWD:/rocks -w /rocks buildpack-deps make

build_tools/fb_compile_mongo.sh

@@ -1,55 +0,0 @@
-#!/bin/sh
-
-# fail early
-set -e
-
-if test -z $ROCKSDB_PATH; then
-  ROCKSDB_PATH=~/rocksdb
-fi
-source $ROCKSDB_PATH/build_tools/fbcode_config4.8.1.sh
-
-EXTRA_LDFLAGS=""
-
-if test -z $ALLOC; then
-  # default
-  ALLOC=tcmalloc
-elif [[ $ALLOC == "jemalloc" ]]; then
-  ALLOC=system
-  EXTRA_LDFLAGS+=" -Wl,--whole-archive $JEMALLOC_LIB -Wl,--no-whole-archive"
-fi
-
-# we need to force mongo to use static library, not shared
-STATIC_LIB_DEP_DIR='build/static_library_dependencies'
-test -d $STATIC_LIB_DEP_DIR || mkdir $STATIC_LIB_DEP_DIR
-test -h $STATIC_LIB_DEP_DIR/`basename $SNAPPY_LIBS` || ln -s $SNAPPY_LIBS $STATIC_LIB_DEP_DIR
-test -h $STATIC_LIB_DEP_DIR/`basename $LZ4_LIBS` || ln -s $LZ4_LIBS $STATIC_LIB_DEP_DIR
-
-EXTRA_LDFLAGS+=" -L $STATIC_LIB_DEP_DIR"
-
-set -x
-
-EXTRA_CMD=""
-if ! test -e version.json; then
-  # this is Mongo 3.0
-  EXTRA_CMD="--rocksdb \
-    --variant-dir=linux2/norm
-    --cxx=${CXX} \
-    --cc=${CC} \
-    --use-system-zlib"  # add this line back to normal code path
-                        # when https://jira.mongodb.org/browse/SERVER-19123 is resolved
-fi
-
-scons \
-  LINKFLAGS="$EXTRA_LDFLAGS $EXEC_LDFLAGS $PLATFORM_LDFLAGS" \
-  CCFLAGS="$CXXFLAGS -L $STATIC_LIB_DEP_DIR" \
-  LIBS="lz4 gcc stdc++" \
-  LIBPATH="$ROCKSDB_PATH" \
-  CPPPATH="$ROCKSDB_PATH/include" \
-  -j32 \
-  --allocator=$ALLOC \
-  --nostrip \
-  --opt=on \
-  --disable-minimum-compiler-version-enforcement \
-  --use-system-snappy \
-  --disable-warnings-as-errors \
-  $EXTRA_CMD $*

build_tools/fbcode.clang31.sh

@@ -0,0 +1,74 @@
+#!/bin/sh
+#
+# Set environment variables so that we can compile leveldb using
+# fbcode settings.  It uses the latest g++ compiler and also
+# uses jemalloc
+
+TOOLCHAIN_REV=fbe3b095a4cc4a3713730050d182b7b4a80c342f
+TOOLCHAIN_EXECUTABLES="/mnt/gvfs/third-party/$TOOLCHAIN_REV/centos5.2-native"
+TOOLCHAIN_LIB_BASE="/mnt/gvfs/third-party/$TOOLCHAIN_REV/gcc-4.7.1-glibc-2.14.1"
+TOOL_JEMALLOC=jemalloc-3.3.1/9202ce3
+GLIBC_RUNTIME_PATH=/usr/local/fbcode/gcc-4.7.1-glibc-2.14.1
+
+# location of libgcc
+LIBGCC_INCLUDE=" -I $TOOLCHAIN_LIB_BASE/libgcc/libgcc-4.7.1/afc21dc/include"
+LIBGCC_LIBS=" -L $TOOLCHAIN_LIB_BASE/libgcc/libgcc-4.7.1/afc21dc/libs"
+
+# location of glibc
+GLIBC_INCLUDE=" -I $TOOLCHAIN_LIB_BASE/glibc/glibc-2.14.1/99df8fc/include"
+GLIBC_LIBS=" -L $TOOLCHAIN_LIB_BASE/glibc/glibc-2.14.1/99df8fc/lib"
+
+# location of snappy headers and libraries
+SNAPPY_INCLUDE=" -I $TOOLCHAIN_LIB_BASE/snappy/snappy-1.0.3/7518bbe/include"
+SNAPPY_LIBS=" $TOOLCHAIN_LIB_BASE/snappy/snappy-1.0.3/7518bbe/lib/libsnappy.a"
+
+# location of zlib headers and libraries
+ZLIB_INCLUDE=" -I $TOOLCHAIN_LIB_BASE/zlib/zlib-1.2.5/91ddd43/include"
+ZLIB_LIBS=" $TOOLCHAIN_LIB_BASE/zlib/zlib-1.2.5/91ddd43/lib/libz.a"
+
+# location of gflags headers and libraries
+GFLAGS_INCLUDE=" -I $TOOLCHAIN_LIB_BASE/gflags/gflags-1.6/91ddd43/include"
+GFLAGS_LIBS=" $TOOLCHAIN_LIB_BASE/gflags/gflags-1.6/91ddd43/lib/libgflags.a"
+
+# location of bzip headers and libraries
+BZIP_INCLUDE=" -I $TOOLCHAIN_LIB_BASE/bzip2/bzip2-1.0.6/91ddd43/include"
+BZIP_LIBS=" $TOOLCHAIN_LIB_BASE/bzip2/bzip2-1.0.6/91ddd43/lib/libbz2.a"
+
+# location of gflags headers and libraries
+GFLAGS_INCLUDE=" -I $TOOLCHAIN_LIB_BASE/gflags/gflags-1.6/91ddd43/include"
+GFLAGS_LIBS=" $TOOLCHAIN_LIB_BASE/gflags/gflags-1.6/91ddd43/lib/libgflags.a"
+
+# use Intel SSE support for checksum calculations
+export USE_SSE=" -msse -msse4.2 "
+
+CC="$TOOLCHAIN_EXECUTABLES/clang/clang-3.2/0b7c69d/bin/clang $CLANG_INCLUDES"
+CXX="$TOOLCHAIN_EXECUTABLES/clang/clang-3.2/0b7c69d/bin/clang++ $CLANG_INCLUDES $JINCLUDE $SNAPPY_INCLUDE $ZLIB_INCLUDE $BZIP_INCLUDE $GFLAGS_INCLUDE"
+AR=$TOOLCHAIN_EXECUTABLES/binutils/binutils-2.21.1/da39a3e/bin/ar
+RANLIB=$TOOLCHAIN_EXECUTABLES/binutils/binutils-2.21.1/da39a3e/bin/ranlib
+
+CFLAGS="-B$TOOLCHAIN_EXECUTABLES/binutils/binutils-2.21.1/da39a3e/bin -nostdlib "
+CFLAGS+=" -nostdinc -isystem $TOOLCHAIN_LIB_BASE/libgcc/libgcc-4.7.1/afc21dc/include/c++/4.7.1 "
+CFLAGS+=" -isystem $TOOLCHAIN_LIB_BASE/libgcc/libgcc-4.7.1/afc21dc/include/c++/4.7.1/x86_64-facebook-linux "
+CFLAGS+=" -isystem $TOOLCHAIN_LIB_BASE/libgcc/libgcc-4.7.1/afc21dc/include/c++/4.7.1/backward "
+CFLAGS+=" -isystem $TOOLCHAIN_LIB_BASE/glibc/glibc-2.14.1/99df8fc/include "
+CFLAGS+=" -isystem $TOOLCHAIN_LIB_BASE/libgcc/libgcc-4.7.1/afc21dc/include "
+CFLAGS+=" -isystem $TOOLCHAIN_LIB_BASE/clang/clang-3.2/0b7c69d/lib/clang/3.2/include "
+CFLAGS+=" -isystem $TOOLCHAIN_LIB_BASE/kernel-headers/kernel-headers-3.2.18_70_fbk11_00129_gc8882d0/da39a3e/include/linux "
+CFLAGS+=" -isystem $TOOLCHAIN_LIB_BASE/kernel-headers/kernel-headers-3.2.18_70_fbk11_00129_gc8882d0/da39a3e/include "
+CFLAGS+=" -Wall -Wno-sign-compare -Wno-unused-variable -Winvalid-pch -Wno-deprecated -Woverloaded-virtual"
+CFLAGS+=" $LIBGCC_INCLUDE $GLIBC_INCLUDE"
+CXXFLAGS="$CFLAGS -nostdinc++"
+
+CFLAGS+=" -I $TOOLCHAIN_LIB_BASE/jemalloc/$TOOL_JEMALLOC/include -DHAVE_JEMALLOC"
+
+EXEC_LDFLAGS=" -Wl,--whole-archive $TOOLCHAIN_LIB_BASE/jemalloc/$TOOL_JEMALLOC/lib/libjemalloc.a"
+EXEC_LDFLAGS+=" -Wl,--no-whole-archive $TOOLCHAIN_LIB_BASE/libunwind/libunwind-1.0.1/350336c/lib/libunwind.a"
+EXEC_LDFLAGS+=" $HDFSLIB $SNAPPY_LIBS $ZLIB_LIBS $BZIP_LIBS $GFLAGS_LIBS"
+EXEC_LDFLAGS+=" -Wl,--dynamic-linker,$GLIBC_RUNTIME_PATH/lib/ld-linux-x86-64.so.2"
+EXEC_LDFLAGS+=" -B$TOOLCHAIN_EXECUTABLES/binutils/binutils-2.21.1/da39a3e/bin"
+
+PLATFORM_LDFLAGS="$LIBGCC_LIBS $GLIBC_LIBS "
+
+EXEC_LDFLAGS_SHARED="$SNAPPY_LIBS $ZLIB_LIBS $GFLAGS_LIBS"
+
+export CC CXX AR RANLIB CFLAGS EXEC_LDFLAGS EXEC_LDFLAGS_SHARED 

build_tools/fbcode.gcc471.sh

@@ -0,0 +1,70 @@
+#!/bin/sh
+#
+# Set environment variables so that we can compile leveldb using
+# fbcode settings.  It uses the latest g++ compiler and also
+# uses jemalloc
+
+TOOLCHAIN_REV=fbe3b095a4cc4a3713730050d182b7b4a80c342f
+TOOLCHAIN_EXECUTABLES="/mnt/gvfs/third-party/$TOOLCHAIN_REV/centos5.2-native"
+TOOLCHAIN_LIB_BASE="/mnt/gvfs/third-party/$TOOLCHAIN_REV/gcc-4.7.1-glibc-2.14.1"
+TOOL_JEMALLOC=jemalloc-3.3.1/9202ce3
+
+# location of libhdfs libraries
+if test "$USE_HDFS"; then
+  JAVA_HOME="/usr/local/jdk-6u22-64"
+  JINCLUDE="-I$JAVA_HOME/include -I$JAVA_HOME/include/linux"
+  GLIBC_RUNTIME_PATH="/usr/local/fbcode/gcc-4.7.1-glibc-2.14.1"
+  HDFSLIB=" -Wl,--no-whole-archive hdfs/libhdfs.a -L$JAVA_HOME/jre/lib/amd64 "
+  HDFSLIB+=" -L$JAVA_HOME/jre/lib/amd64/server -L$GLIBC_RUNTIME_PATH/lib "
+  HDFSLIB+=" -ldl -lverify -ljava -ljvm "
+fi
+
+# location of libgcc
+LIBGCC_INCLUDE=" -I $TOOLCHAIN_LIB_BASE/libgcc/libgcc-4.7.1/afc21dc/include"
+LIBGCC_LIBS=" -L $TOOLCHAIN_LIB_BASE/libgcc/libgcc-4.7.1/afc21dc/libs"
+
+# location of glibc
+GLIBC_INCLUDE=" -I $TOOLCHAIN_LIB_BASE/glibc/glibc-2.14.1/99df8fc/include"
+GLIBC_LIBS=" -L $TOOLCHAIN_LIB_BASE/glibc/glibc-2.14.1/99df8fc/lib"
+
+# location of snappy headers and libraries
+SNAPPY_INCLUDE=" -I $TOOLCHAIN_LIB_BASE/snappy/snappy-1.0.3/7518bbe/include"
+SNAPPY_LIBS=" $TOOLCHAIN_LIB_BASE/snappy/snappy-1.0.3/7518bbe/lib/libsnappy.a"
+
+# location of zlib headers and libraries
+ZLIB_INCLUDE=" -I $TOOLCHAIN_LIB_BASE/zlib/zlib-1.2.5/91ddd43/include"
+ZLIB_LIBS=" $TOOLCHAIN_LIB_BASE/zlib/zlib-1.2.5/91ddd43/lib/libz.a"
+
+# location of bzip headers and libraries
+BZIP_INCLUDE=" -I $TOOLCHAIN_LIB_BASE/bzip2/bzip2-1.0.6/91ddd43/include"
+BZIP_LIBS=" $TOOLCHAIN_LIB_BASE/bzip2/bzip2-1.0.6/91ddd43/lib/libbz2.a"
+
+# location of gflags headers and libraries
+GFLAGS_INCLUDE=" -I $TOOLCHAIN_LIB_BASE/gflags/gflags-1.6/91ddd43/include"
+GFLAGS_LIBS=" $TOOLCHAIN_LIB_BASE/gflags/gflags-1.6/91ddd43/lib/libgflags.a"
+
+# use Intel SSE support for checksum calculations
+export USE_SSE=" -msse -msse4.2 "
+
+CC="$TOOLCHAIN_EXECUTABLES/gcc/gcc-4.7.1-glibc-2.14.1/bin/gcc"
+CXX="$TOOLCHAIN_EXECUTABLES/gcc/gcc-4.7.1-glibc-2.14.1/bin/g++ $JINCLUDE $SNAPPY_INCLUDE $ZLIB_INCLUDE $BZIP_INCLUDE $GFLAGS_INCLUDE"
+AR=$TOOLCHAIN_EXECUTABLES/binutils/binutils-2.21.1/da39a3e/bin/ar
+RANLIB=$TOOLCHAIN_EXECUTABLES/binutils/binutils-2.21.1/da39a3e/bin/ranlib
+
+CFLAGS="-B$TOOLCHAIN_EXECUTABLES/binutils/binutils-2.21.1/da39a3e/bin/gold -m64 -mtune=generic"
+CFLAGS+=" -I $TOOLCHAIN_LIB_BASE/jemalloc/$TOOL_JEMALLOC/include -DHAVE_JEMALLOC"
+CFLAGS+=" $LIBGCC_INCLUDE $GLIBC_INCLUDE"
+CFLAGS+=" -DROCKSDB_PLATFORM_POSIX -DROCKSDB_ATOMIC_PRESENT -DROCKSDB_FALLOCATE_PRESENT"
+CFLAGS+=" -DSNAPPY -DGFLAGS=google -DZLIB -DBZIP2"
+
+EXEC_LDFLAGS=" -Wl,--whole-archive $TOOLCHAIN_LIB_BASE/jemalloc/$TOOL_JEMALLOC/lib/libjemalloc.a"
+EXEC_LDFLAGS+=" -Wl,--no-whole-archive $TOOLCHAIN_LIB_BASE/libunwind/libunwind-1.0.1/350336c/lib/libunwind.a"
+EXEC_LDFLAGS+=" $HDFSLIB $SNAPPY_LIBS $ZLIB_LIBS $BZIP_LIBS $GFLAGS_LIBS"
+
+PLATFORM_LDFLAGS="$LIBGCC_LIBS $GLIBC_LIBS "
+
+EXEC_LDFLAGS_SHARED="$SNAPPY_LIBS $ZLIB_LIBS $BZIP_LIBS $GFLAGS_LIBS"
+
+VALGRIND_VER="$TOOLCHAIN_LIB_BASE/valgrind/valgrind-3.8.1/91ddd43/bin/"
+
+export CC CXX AR RANLIB CFLAGS EXEC_LDFLAGS EXEC_LDFLAGS_SHARED VALGRIND_VER

build_tools/fbcode.gcc481.sh

@@ -0,0 +1,86 @@
+#!/bin/sh
+#
+# Set environment variables so that we can compile rocksdb using
+# fbcode settings.  It uses the latest g++ compiler and also
+# uses jemalloc
+
+TOOLCHAIN_REV=53dc1fe83f84e9145b9ffb81b81aa7f6a49c87cc
+CENTOS_VERSION=`rpm -q --qf "%{VERSION}" $(rpm -q --whatprovides redhat-release)`
+if [ "$CENTOS_VERSION" = "6" ]; then
+  TOOLCHAIN_EXECUTABLES="/mnt/gvfs/third-party/$TOOLCHAIN_REV/centos6-native"
+else
+  TOOLCHAIN_EXECUTABLES="/mnt/gvfs/third-party/$TOOLCHAIN_REV/centos5.2-native"
+fi
+TOOLCHAIN_LIB_BASE="/mnt/gvfs/third-party/$TOOLCHAIN_REV/gcc-4.8.1-glibc-2.17"
+
+# location of libhdfs libraries
+if test "$USE_HDFS"; then
+  JAVA_HOME="/usr/local/jdk-6u22-64"
+  JINCLUDE="-I$JAVA_HOME/include -I$JAVA_HOME/include/linux"
+  GLIBC_RUNTIME_PATH="/usr/local/fbcode/gcc-4.8.1-glibc-2.17"
+  HDFSLIB=" -Wl,--no-whole-archive hdfs/libhdfs.a -L$JAVA_HOME/jre/lib/amd64 "
+  HDFSLIB+=" -L$JAVA_HOME/jre/lib/amd64/server -L$GLIBC_RUNTIME_PATH/lib "
+  HDFSLIB+=" -ldl -lverify -ljava -ljvm "
+fi
+
+# location of libgcc
+LIBGCC_INCLUDE=" -I $TOOLCHAIN_LIB_BASE/libgcc/libgcc-4.8.1/8aac7fc/include"
+LIBGCC_LIBS=" -L $TOOLCHAIN_LIB_BASE/libgcc/libgcc-4.8.1/8aac7fc/libs"
+
+# location of glibc
+GLIBC_INCLUDE=" -I $TOOLCHAIN_LIB_BASE/glibc/glibc-2.17/99df8fc/include"
+GLIBC_LIBS=" -L $TOOLCHAIN_LIB_BASE/glibc/glibc-2.17/99df8fc/lib"
+
+# location of snappy headers and libraries
+SNAPPY_INCLUDE=" -I $TOOLCHAIN_LIB_BASE/snappy/snappy-1.0.3/43d84e2/include"
+SNAPPY_LIBS=" $TOOLCHAIN_LIB_BASE/snappy/snappy-1.0.3/43d84e2/lib/libsnappy.a"
+
+# location of zlib headers and libraries
+ZLIB_INCLUDE=" -I $TOOLCHAIN_LIB_BASE/zlib/zlib-1.2.5/c3f970a/include"
+ZLIB_LIBS=" $TOOLCHAIN_LIB_BASE/zlib/zlib-1.2.5/c3f970a/lib/libz.a"
+
+# location of bzip headers and libraries
+BZIP_INCLUDE=" -I $TOOLCHAIN_LIB_BASE/bzip2/bzip2-1.0.6/c3f970a/include"
+BZIP_LIBS=" $TOOLCHAIN_LIB_BASE/bzip2/bzip2-1.0.6/c3f970a/lib/libbz2.a"
+
+LZ4_REV=065ec7e38fe83329031f6668c43bef83eff5808b
+LZ4_INCLUDE=" -I /mnt/gvfs/third-party2/lz4/$LZ4_REV/r108/gcc-4.8.1-glibc-2.17/c3f970a/include"
+LZ4_LIBS=" /mnt/gvfs/third-party2/lz4/$LZ4_REV/r108/gcc-4.8.1-glibc-2.17/c3f970a/lib/liblz4.a"
+
+# location of gflags headers and libraries
+GFLAGS_INCLUDE=" -I $TOOLCHAIN_LIB_BASE/gflags/gflags-1.6/c3f970a/include"
+GFLAGS_LIBS=" $TOOLCHAIN_LIB_BASE/gflags/gflags-1.6/c3f970a/lib/libgflags.a"
+
+# location of jemalloc
+JEMALLOC_INCLUDE=" -I $TOOLCHAIN_LIB_BASE/jemalloc/jemalloc-3.4.1/4d53c6f/include/"
+JEMALLOC_LIB=" -Wl,--whole-archive $TOOLCHAIN_LIB_BASE/jemalloc/jemalloc-3.4.1/4d53c6f/lib/libjemalloc.a"
+
+# location of numa
+NUMA_REV=829d10dac0230f99cd7e1778869d2adf3da24b65
+NUMA_INCLUDE=" -I /mnt/gvfs/third-party2/numa/$NUMA_REV/2.0.8/gcc-4.8.1-glibc-2.17/c3f970a/include/"
+NUMA_LIB=" /mnt/gvfs/third-party2/numa/$NUMA_REV/2.0.8/gcc-4.8.1-glibc-2.17/c3f970a/lib/libnuma.a"
+
+# use Intel SSE support for checksum calculations
+export USE_SSE=" -msse -msse4.2 "
+
+CC="$TOOLCHAIN_EXECUTABLES/gcc/gcc-4.8.1/cc6c9dc/bin/gcc"
+CXX="$TOOLCHAIN_EXECUTABLES/gcc/gcc-4.8.1/cc6c9dc/bin/g++ $JINCLUDE $SNAPPY_INCLUDE $ZLIB_INCLUDE $BZIP_INCLUDE $LZ4_INCLUDE $GFLAGS_INCLUDE $NUMA_INCLUDE"
+AR=$TOOLCHAIN_EXECUTABLES/binutils/binutils-2.21.1/da39a3e/bin/ar
+RANLIB=$TOOLCHAIN_EXECUTABLES/binutils/binutils-2.21.1/da39a3e/bin/ranlib
+
+CFLAGS="-B$TOOLCHAIN_EXECUTABLES/binutils/binutils-2.21.1/da39a3e/bin/gold -m64 -mtune=generic"
+CFLAGS+=" $LIBGCC_INCLUDE $GLIBC_INCLUDE"
+CFLAGS+=" -DROCKSDB_PLATFORM_POSIX -DROCKSDB_ATOMIC_PRESENT -DROCKSDB_FALLOCATE_PRESENT"
+CFLAGS+=" -DSNAPPY -DGFLAGS=google -DZLIB -DBZIP2 -DLZ4 -DNUMA"
+
+EXEC_LDFLAGS="-Wl,--dynamic-linker,/usr/local/fbcode/gcc-4.8.1-glibc-2.17/lib/ld.so"
+EXEC_LDFLAGS+=" -Wl,--no-whole-archive $TOOLCHAIN_LIB_BASE/libunwind/libunwind-1.0.1/675d945/lib/libunwind.a"
+EXEC_LDFLAGS+=" $HDFSLIB $SNAPPY_LIBS $ZLIB_LIBS $BZIP_LIBS $LZ4_LIBS $GFLAGS_LIBS $NUMA_LIB"
+
+PLATFORM_LDFLAGS="$LIBGCC_LIBS $GLIBC_LIBS "
+
+EXEC_LDFLAGS_SHARED="$SNAPPY_LIBS $ZLIB_LIBS $BZIP_LIBS $LZ4_LIBS $GFLAGS_LIBS"
+
+VALGRIND_VER="$TOOLCHAIN_LIB_BASE/valgrind/valgrind-3.8.1/c3f970a/bin/"
+
+export CC CXX AR RANLIB CFLAGS EXEC_LDFLAGS EXEC_LDFLAGS_SHARED VALGRIND_VER JEMALLOC_LIB JEMALLOC_INCLUDE

build_tools/fbcode_config.sh

@@ -35,24 +35,11 @@ if test -z $PIC_BUILD; then
   ZLIB_LIBS=" $ZLIB_BASE/lib/libz.a"
   CFLAGS+=" -DZLIB"
 
-  # location of bzip headers and libraries
-  BZIP_INCLUDE=" -I $BZIP2_BASE/include/"
-  BZIP_LIBS=" $BZIP2_BASE/lib/libbz2.a"
-  CFLAGS+=" -DBZIP2"
-
   LZ4_INCLUDE=" -I $LZ4_BASE/include/"
   LZ4_LIBS=" $LZ4_BASE/lib/liblz4.a"
   CFLAGS+=" -DLZ4"
 fi
 
-ZSTD_INCLUDE=" -I $ZSTD_BASE/include/"
-if test -z $PIC_BUILD; then
-  ZSTD_LIBS=" $ZSTD_BASE/lib/libzstd.a"
-else
-  ZSTD_LIBS=" $ZSTD_BASE/lib/libzstd_pic.a"
-fi
-CFLAGS+=" -DZSTD"
-
 # location of gflags headers and libraries
 GFLAGS_INCLUDE=" -I $GFLAGS_BASE/include/"
 if test -z $PIC_BUILD; then
@@ -67,11 +54,6 @@ JEMALLOC_INCLUDE=" -I $JEMALLOC_BASE/include/"
 JEMALLOC_LIB=" $JEMALLOC_BASE/lib/libjemalloc.a"
 
 if test -z $PIC_BUILD; then
-  # location of numa
-  NUMA_INCLUDE=" -I $NUMA_BASE/include/"
-  NUMA_LIB=" $NUMA_BASE/lib/libnuma.a"
-  CFLAGS+=" -DNUMA"
-
   # location of libunwind
   LIBUNWIND="$LIBUNWIND_BASE/lib/libunwind.a"
 fi
@@ -86,12 +68,12 @@ fi
 CFLAGS+=" -DTBB"
 
 # use Intel SSE support for checksum calculations
-export USE_SSE=1
+export USE_SSE=" -msse -msse4.2 "
 
 BINUTILS="$BINUTILS_BASE/bin"
 AR="$BINUTILS/ar"
 
-DEPS_INCLUDE="$SNAPPY_INCLUDE $ZLIB_INCLUDE $BZIP_INCLUDE $LZ4_INCLUDE $ZSTD_INCLUDE $GFLAGS_INCLUDE $NUMA_INCLUDE $TBB_INCLUDE"
+DEPS_INCLUDE="$SNAPPY_INCLUDE $ZLIB_INCLUDE $LZ4_INCLUDE $GFLAGS_INCLUDE"
 
 STDLIBS="-L $GCC_BASE/lib64"
 
@@ -135,7 +117,7 @@ CFLAGS+=" $DEPS_INCLUDE"
 CFLAGS+=" -DROCKSDB_PLATFORM_POSIX -DROCKSDB_LIB_IO_POSIX -DROCKSDB_FALLOCATE_PRESENT -DROCKSDB_MALLOC_USABLE_SIZE -DROCKSDB_RANGESYNC_PRESENT -DROCKSDB_SCHED_GETCPU_PRESENT -DROCKSDB_SUPPORT_THREAD_LOCAL -DHAVE_SSE42"
 CXXFLAGS+=" $CFLAGS"
 
-EXEC_LDFLAGS=" $SNAPPY_LIBS $ZLIB_LIBS $BZIP_LIBS $LZ4_LIBS $ZSTD_LIBS $GFLAGS_LIBS $NUMA_LIB $TBB_LIBS"
+EXEC_LDFLAGS=" $SNAPPY_LIBS $ZLIB_LIBS $LZ4_LIBS $ZSTD_LIBS $GFLAGS_LIBS $NUMA_LIB $TBB_LIBS"
 EXEC_LDFLAGS+=" -B$BINUTILS/gold"
 EXEC_LDFLAGS+=" -Wl,--dynamic-linker,/usr/local/fbcode/platform007/lib/ld.so"
 EXEC_LDFLAGS+=" $LIBUNWIND"
@@ -145,7 +127,7 @@ EXEC_LDFLAGS+=" -ldl"
 
 PLATFORM_LDFLAGS="$LIBGCC_LIBS $GLIBC_LIBS $STDLIBS -lgcc -lstdc++"
 
-EXEC_LDFLAGS_SHARED="$SNAPPY_LIBS $ZLIB_LIBS $BZIP_LIBS $LZ4_LIBS $ZSTD_LIBS $GFLAGS_LIBS $TBB_LIBS"
+EXEC_LDFLAGS_SHARED="$SNAPPY_LIBS $ZLIB_LIBS $LZ4_LIBS $ZSTD_LIBS $GFLAGS_LIBS $TBB_LIBS"
 
 VALGRIND_VER="$VALGRIND_BASE/bin/"
 

build_tools/fbcode_config4.8.1.sh

@@ -1,106 +0,0 @@
-#!/bin/sh
-#
-# Set environment variables so that we can compile rocksdb using
-# fbcode settings.  It uses the latest g++ compiler and also
-# uses jemalloc
-
-BASEDIR=`dirname $BASH_SOURCE`
-source "$BASEDIR/dependencies_4.8.1.sh"
-
-# location of libgcc
-LIBGCC_INCLUDE="$LIBGCC_BASE/include"
-LIBGCC_LIBS=" -L $LIBGCC_BASE/libs"
-
-# location of glibc
-GLIBC_INCLUDE="$GLIBC_BASE/include"
-GLIBC_LIBS=" -L $GLIBC_BASE/lib"
-
-# location of snappy headers and libraries
-SNAPPY_INCLUDE=" -I $SNAPPY_BASE/include"
-SNAPPY_LIBS=" $SNAPPY_BASE/lib/libsnappy.a"
-
-# location of zlib headers and libraries
-ZLIB_INCLUDE=" -I $ZLIB_BASE/include"
-ZLIB_LIBS=" $ZLIB_BASE/lib/libz.a"
-
-# location of bzip headers and libraries
-BZIP2_INCLUDE=" -I $BZIP2_BASE/include/"
-BZIP2_LIBS=" $BZIP2_BASE/lib/libbz2.a"
-
-LZ4_INCLUDE=" -I $LZ4_BASE/include"
-LZ4_LIBS=" $LZ4_BASE/lib/liblz4.a"
-
-ZSTD_INCLUDE=" -I $ZSTD_BASE/include"
-ZSTD_LIBS=" $ZSTD_BASE/lib/libzstd.a"
-
-# location of gflags headers and libraries
-GFLAGS_INCLUDE=" -I $GFLAGS_BASE/include/"
-GFLAGS_LIBS=" $GFLAGS_BASE/lib/libgflags.a"
-
-# location of jemalloc
-JEMALLOC_INCLUDE=" -I $JEMALLOC_BASE/include"
-JEMALLOC_LIB="$JEMALLOC_BASE/lib/libjemalloc.a"
-
-# location of numa
-NUMA_INCLUDE=" -I $NUMA_BASE/include/"
-NUMA_LIB=" $NUMA_BASE/lib/libnuma.a"
-
-# location of libunwind
-LIBUNWIND="$LIBUNWIND_BASE/lib/libunwind.a"
-
-# use Intel SSE support for checksum calculations
-export USE_SSE=1
-
-BINUTILS="$BINUTILS_BASE/bin"
-AR="$BINUTILS/ar"
-
-DEPS_INCLUDE="$SNAPPY_INCLUDE $ZLIB_INCLUDE $BZIP2_INCLUDE $LZ4_INCLUDE $ZSTD_INCLUDE $GFLAGS_INCLUDE $NUMA_INCLUDE"
-
-STDLIBS="-L $GCC_BASE/lib64"
-
-if [ -z "$USE_CLANG" ]; then
-  # gcc
-  CC="$GCC_BASE/bin/gcc"
-  CXX="$GCC_BASE/bin/g++"
-
-  CFLAGS="-B$BINUTILS/gold -m64 -mtune=generic"
-  CFLAGS+=" -isystem $GLIBC_INCLUDE"
-  CFLAGS+=" -isystem $LIBGCC_INCLUDE"
-else
-  # clang
-  CLANG_BIN="$CLANG_BASE/bin"
-  CLANG_LIB="$CLANG_BASE/lib"
-  CLANG_INCLUDE="$CLANG_LIB/clang/*/include"
-  CC="$CLANG_BIN/clang"
-  CXX="$CLANG_BIN/clang++"
-
-  KERNEL_HEADERS_INCLUDE="$KERNEL_HEADERS_BASE/include/"
-
-  CFLAGS="-B$BINUTILS/gold -nostdinc -nostdlib"
-  CFLAGS+=" -isystem $LIBGCC_BASE/include/c++/4.8.1 "
-  CFLAGS+=" -isystem $LIBGCC_BASE/include/c++/4.8.1/x86_64-facebook-linux "
-  CFLAGS+=" -isystem $GLIBC_INCLUDE"
-  CFLAGS+=" -isystem $LIBGCC_INCLUDE"
-  CFLAGS+=" -isystem $CLANG_INCLUDE"
-  CFLAGS+=" -isystem $KERNEL_HEADERS_INCLUDE/linux "
-  CFLAGS+=" -isystem $KERNEL_HEADERS_INCLUDE "
-  CXXFLAGS="-nostdinc++"
-fi
-
-CFLAGS+=" $DEPS_INCLUDE"
-CFLAGS+=" -DROCKSDB_PLATFORM_POSIX -DROCKSDB_LIB_IO_POSIX -DROCKSDB_FALLOCATE_PRESENT -DROCKSDB_MALLOC_USABLE_SIZE"
-CFLAGS+=" -DSNAPPY -DGFLAGS=google -DZLIB -DBZIP2 -DLZ4 -DZSTD -DNUMA"
-CXXFLAGS+=" $CFLAGS"
-
-EXEC_LDFLAGS=" $SNAPPY_LIBS $ZLIB_LIBS $BZIP2_LIBS $LZ4_LIBS $ZSTD_LIBS $GFLAGS_LIBS $NUMA_LIB"
-EXEC_LDFLAGS+=" -Wl,--dynamic-linker,/usr/local/fbcode/gcc-4.8.1-glibc-2.17/lib/ld.so"
-EXEC_LDFLAGS+=" $LIBUNWIND"
-EXEC_LDFLAGS+=" -Wl,-rpath=/usr/local/fbcode/gcc-4.8.1-glibc-2.17/lib"
-
-PLATFORM_LDFLAGS="$LIBGCC_LIBS $GLIBC_LIBS $STDLIBS -lgcc -lstdc++"
-
-EXEC_LDFLAGS_SHARED="$SNAPPY_LIBS $ZLIB_LIBS $BZIP2_LIBS $LZ4_LIBS $ZSTD_LIBS $GFLAGS_LIBS"
-
-VALGRIND_VER="$VALGRIND_BASE/bin/"
-
-export CC CXX AR CFLAGS CXXFLAGS EXEC_LDFLAGS EXEC_LDFLAGS_SHARED VALGRIND_VER JEMALLOC_LIB JEMALLOC_INCLUDE

build_tools/format-diff.sh

@@ -79,12 +79,6 @@ echo -e "Detect lines that doesn't follow the format rules:\r"
 echo "$diffs" | 
   sed -e "s/\(^-.*$\)/`echo -e \"$COLOR_RED\1$COLOR_END\"`/" |
   sed -e "s/\(^+.*$\)/`echo -e \"$COLOR_GREEN\1$COLOR_END\"`/"
-
-if [[ "$OPT" == *"-DTRAVIS"* ]]
-then
-  exit 1
-fi
-
 echo -e "Would you like to fix the format automatically (y/n): \c"
 
 # Make sure under any mode, we can read user input.

build_tools/mac-install-gflags.sh

@@ -0,0 +1,25 @@
+#!/bin/sh
+# Install gflags for mac developers.
+
+set -e
+
+DIR=`mktemp -d /tmp/rocksdb_gflags_XXXX`
+
+cd $DIR
+wget https://gflags.googlecode.com/files/gflags-2.0.tar.gz
+tar xvfz gflags-2.0.tar.gz
+cd gflags-2.0
+
+./configure
+make
+make install
+
+# Add include/lib path for g++
+echo 'export LIBRARY_PATH+=":/usr/local/lib"' >> ~/.bash_profile
+echo 'export CPATH+=":/usr/local/include"' >> ~/.bash_profile
+
+echo ""
+echo "-----------------------------------------------------------------------------"
+echo "|                         Installation Completed                            |"
+echo "-----------------------------------------------------------------------------"
+echo "Please run \`. ~/.bash_profile\` to be able to compile with gflags"

build_tools/make_new_version.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-#  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+#  Copyright (c) 2013, Facebook, Inc.  All rights reserved.
 #  This source code is licensed under the BSD-style license found in the
 #  LICENSE file in the root directory of this source tree. An additional grant
 #  of patent rights can be found in the PATENTS file in the same directory.
@@ -10,7 +10,7 @@ then
   GIT="git"
 fi
 
-# Print out the colored progress info so that it can be brainlessly
+# Print out the colored progress info so that it can be brainlessly 
 # distinguished by users.
 function title() {
   echo -e "\033[1;32m$*\033[0m"
@@ -37,7 +37,7 @@ fi
 
 title "Adding new tag for this release ..."
 BRANCH="$ROCKSDB_VERSION.fb"
-$GIT checkout -b $BRANCH
+$GIT co -b $BRANCH
 
 # Setting up the proxy for remote repo access
 title "Pushing new branch to remote repo ..."

build_tools/precommit_checker.py

@@ -1,198 +0,0 @@
-#!/usr/local/fbcode/gcc-4.8.1-glibc-2.17-fb/bin/python2.7
-
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
-from __future__ import unicode_literals
-import argparse
-import commands
-import subprocess
-import sys
-import re
-import os
-import time
-
-#
-# Simple logger
-#
-
-
-class Log:
-
-    LOG_FILE = "/tmp/precommit-check.log"
-
-    def __init__(self):
-        self.filename = Log.LOG_FILE
-        self.f = open(self.filename, 'w+', 0)
-
-    def caption(self, str):
-        line = "\n##### %s #####\n" % str
-        if self.f:
-            self.f.write("%s \n" % line)
-        else:
-            print(line)
-
-    def error(self, str):
-        data = "\n\n##### ERROR ##### %s" % str
-        if self.f:
-            self.f.write("%s \n" % data)
-        else:
-            print(data)
-
-    def log(self, str):
-        if self.f:
-            self.f.write("%s \n" % str)
-        else:
-            print(str)
-
-#
-# Shell Environment
-#
-
-
-class Env(object):
-
-    def __init__(self, tests):
-        self.tests = tests
-        self.log = Log()
-
-    def shell(self, cmd, path=os.getcwd()):
-        if path:
-            os.chdir(path)
-
-        self.log.log("==== shell session ===========================")
-        self.log.log("%s> %s" % (path, cmd))
-        status = subprocess.call("cd %s; %s" % (path, cmd), shell=True,
-                                 stdout=self.log.f, stderr=self.log.f)
-        self.log.log("status = %s" % status)
-        self.log.log("============================================== \n\n")
-        return status
-
-    def GetOutput(self, cmd, path=os.getcwd()):
-        if path:
-            os.chdir(path)
-
-        self.log.log("==== shell session ===========================")
-        self.log.log("%s> %s" % (path, cmd))
-        status, out = commands.getstatusoutput(cmd)
-        self.log.log("status = %s" % status)
-        self.log.log("out = %s" % out)
-        self.log.log("============================================== \n\n")
-        return status, out
-
-#
-# Pre-commit checker
-#
-
-
-class PreCommitChecker(Env):
-
-    def __init__(self, tests):
-        Env.__init__(self, tests)
-
-    #
-    #   Get commands for a given job from the determinator file
-    #
-    def get_commands(self, test):
-        status, out = self.GetOutput(
-            "build_tools/rocksdb-lego-determinator %s" % test, ".")
-        return status, out
-
-    #
-    # Run a specific CI job
-    #
-    def run_test(self, test):
-        self.log.caption("Running test %s locally" % test)
-
-        # get commands for the CI job determinator
-        status, cmds = self.get_commands(test)
-        if status != 0:
-            self.log.error("Error getting commands for test %s" % test)
-            return False
-
-        # Parse the JSON to extract the commands to run
-        cmds = re.findall("'shell':'([^\']*)'", cmds)
-
-        if len(cmds) == 0:
-            self.log.log("No commands found")
-            return False
-
-        # Run commands
-        for cmd in cmds:
-            # Replace J=<..> with the local environment variable
-            if "J" in os.environ:
-                cmd = cmd.replace("J=1", "J=%s" % os.environ["J"])
-                cmd = cmd.replace("make ", "make -j%s " % os.environ["J"])
-            # Run the command
-            status = self.shell(cmd, ".")
-            if status != 0:
-                self.log.error("Error running command %s for test %s"
-                               % (cmd, test))
-                return False
-
-        return True
-
-    #
-    # Run specified CI jobs
-    #
-    def run_tests(self):
-        if not self.tests:
-            self.log.error("Invalid args. Please provide tests")
-            return False
-
-        self.print_separator()
-        self.print_row("TEST", "RESULT")
-        self.print_separator()
-
-        for test in self.tests:
-            start_time = time.time()
-            self.print_test(test)
-            result = self.run_test(test)
-            elapsed_min = (time.time() - start_time) / 60
-            if not result:
-                self.log.error("Error running test %s" % test)
-                self.print_result("FAIL (%dm)" % elapsed_min)
-                return False
-            self.print_result("PASS (%dm)" % elapsed_min)
-
-        self.print_separator()
-        return True
-
-    #
-    # Print a line
-    #
-    def print_separator(self):
-        print("".ljust(60, "-"))
-
-    #
-    # Print two colums
-    #
-    def print_row(self, c0, c1):
-        print("%s%s" % (c0.ljust(40), c1.ljust(20)))
-
-    def print_test(self, test):
-        print(test.ljust(40), end="")
-        sys.stdout.flush()
-
-    def print_result(self, result):
-        print(result.ljust(20))
-
-#
-# Main
-#
-parser = argparse.ArgumentParser(description='RocksDB pre-commit checker.')
-
-# <test ....>
-parser.add_argument('test', nargs='+',
-                    help='CI test(s) to run. e.g: unit punit asan tsan')
-
-print("Please follow log %s" % Log.LOG_FILE)
-
-args = parser.parse_args()
-checker = PreCommitChecker(args.test)
-
-if not checker.run_tests():
-    print("Error running tests. Please check log file %s" % Log.LOG_FILE)
-    sys.exit(1)
-
-sys.exit(0)

build_tools/regression_build_test.sh

@@ -243,7 +243,7 @@ make release
     --bloom_bits=10 \
     --num=$((NUM / 4)) \
     --reads=$((NUM / 4)) \
-    --benchmark_write_rate_limit=$(( 110 * 1024 )) \
+    --writes_per_second=1000 \
     --write_buffer_size=100000000 \
     --cache_size=6442450944 \
     --cache_numshardbits=6 \
@@ -329,7 +329,7 @@ common_in_mem_args="--db=/dev/shm/rocksdb \
     --use_existing_db=1 \
     --duration=600 \
     --threads=32 \
-    --benchmark_write_rate_limit=9502720 > ${STAT_FILE}.readwhilewriting_in_ram
+    --writes_per_second=81920 > ${STAT_FILE}.readwhilewriting_in_ram
 
 # Seekrandomwhilewriting
 ./db_bench \
@@ -342,7 +342,7 @@ common_in_mem_args="--db=/dev/shm/rocksdb \
     --use_tailing_iterator=1 \
     --duration=600 \
     --threads=32 \
-    --benchmark_write_rate_limit=9502720 > ${STAT_FILE}.seekwhilewriting_in_ram
+    --writes_per_second=81920 > ${STAT_FILE}.seekwhilewriting_in_ram
 
 # measure fillseq with bunch of column families
 ./db_bench \

build_tools/rocksdb-lego-determinator

@@ -1,665 +0,0 @@
-#!/bin/bash
-# This script is executed by Sandcastle
-# to determine next steps to run
-
-# Usage:
-# EMAIL=<email> ONCALL=<email> TRIGGER=<trigger> SUBSCRIBER=<email> rocks_ci.py <test-name>
-#
-# Input         Value
-# -------------------------------------------------------------------------
-# EMAIL         Email address to report on trigger conditions
-# ONCAL         Email address to raise a task on failure
-# TRIGGER       Trigger conditions for email. Valid values are fail, warn, all
-# SUBSCRIBER    Email addresss to add as subscriber for task
-#
-
-#
-# Report configuration
-#
-REPORT_EMAIL=
-if [ ! -z $EMAIL ]; then
-  if [ -z $TRIGGER ]; then
-    TRIGGER="fail"
-  fi
-
-  REPORT_EMAIL="
-  {
-      'type':'email',
-      'triggers': [ '$TRIGGER' ],
-      'emails':['$EMAIL']
-  },"
-fi
-
-CREATE_TASK=
-if [ ! -z $ONCALL ]; then
-  CREATE_TASK="
-  {
-      'type':'task',
-      'triggers':[ 'fail' ],
-      'priority':0,
-      'subscribers':[ '$SUBSCRIBER' ],
-      'tags':[ 'rocksdb', 'ci' ],
-  },"
-fi
-
-REPORT=
-if [[ ! -z $REPORT_EMAIL || ! -z $CREATE_TASK ]]; then
-  REPORT="'report': [
-    $REPORT_EMAIL
-    $CREATE_TASK
-  ]"
-fi
-
-#
-# Helper variables
-#
-CLEANUP_ENV="
-{
-    'name':'Cleanup environment',
-    'shell':'rm -rf /dev/shm/rocksdb && mkdir /dev/shm/rocksdb && make clean',
-    'user':'root'
-}"
-
-DEBUG="OPT=-g"
-SHM="TEST_TMPDIR=/dev/shm/rocksdb"
-GCC_481="ROCKSDB_FBCODE_BUILD_WITH_481=1"
-ASAN="COMPILE_WITH_ASAN=1"
-CLANG="USE_CLANG=1"
-LITE="OPT=-DROCKSDB_LITE"
-TSAN="COMPILE_WITH_TSAN=1"
-DISABLE_JEMALLOC="DISABLE_JEMALLOC=1"
-PARSER="'parser':'egrep \'Failure|^#|Abort|Expected|Actual|GoogleTestFailure|^==\''"
-
-ARTIFACTS=" 'artifacts': [
-    {
-        'name':'database',
-        'paths':[ '/dev/shm/rocksdb' ],
-    }
-]"
-
-#
-# A mechanism to disable tests temporarily
-#
-DISABLE_COMMANDS="[
-    {
-        'name':'Disable test',
-        'oncall':'$ONCALL',
-        'steps': [
-            {
-              'name':'Job disabled. Please contact test owner',
-              'shell':'exit 1',
-              'user':'root'
-            },
-        ],
-    }
-]"
-
-#
-# RocksDB unit test in parallel
-# Currently we always have noise in our parallel runs. This job is to help
-# manage the noise
-#
-PARALLEL_UNIT_TEST_COMMANDS="[
-    {
-        'name':'Rocksdb Parallel Unit Test',
-        'oncall':'$ONCALL',
-        'steps': [
-            $CLEANUP_ENV,
-            {
-                'name':'Build and test RocksDB debug version',
-                'shell':'$DEBUG make -j$(nproc) all && $SHM make check > /dev/null 2>&1 || cat t/log-*',
-                'user':'root',
-                $PARSER
-            },
-            $CLEANUP_ENV,
-            {
-                'name':'Build and test RocksDB debug version under gcc-4.8.1',
-                'shell':'$GCC_481 $DEBUG make -j$(nproc) all && $SHM make check > /dev/null 2>&1 || cat t/log-*',
-                'user':'root',
-                $PARSER
-            },
-        ],
-        $REPORT
-    }
-]"
-
-#
-# RocksDB unit test
-#
-UNIT_TEST_COMMANDS="[
-    {
-        'name':'Rocksdb Unit Test',
-        'oncall':'$ONCALL',
-        'steps': [
-            $CLEANUP_ENV,
-            {
-                'name':'Build and test RocksDB debug version',
-                'shell':'$SHM $DEBUG make J=1 check',
-                'user':'root',
-                $PARSER
-            },
-        ],
-        $REPORT
-    }
-]"
-
-#
-# RocksDB unit test on gcc-4.8.1
-#
-UNIT_TEST_COMMANDS_481="[
-    {
-        'name':'Rocksdb Unit Test on GCC 4.8.1',
-        'oncall':'$ONCALL',
-        'steps': [
-            $CLEANUP_ENV,
-            {
-                'name':'Build and test RocksDB debug version',
-                'shell':'$SHM $GCC_481 $DEBUG make J=1 check',
-                'user':'root',
-                $PARSER
-            },
-        ],
-        $REPORT
-    }
-]"
-
-#
-# RocksDB unit test with CLANG
-#
-CLANG_UNIT_TEST_COMMANDS="[
-    {
-        'name':'Rocksdb Unit Test',
-        'oncall':'$ONCALL',
-        'steps': [
-            $CLEANUP_ENV,
-            {
-                'name':'Build and test RocksDB debug',
-                'shell':'$CLANG $SHM $DEBUG make J=1 check',
-                'user':'root',
-                $PARSER
-            },
-        ],
-        $REPORT
-    }
-]"
-
-#
-# RocksDB analyze
-#
-CLANG_ANALYZE_COMMANDS="[
-    {
-        'name':'Rocksdb analyze',
-        'oncall':'$ONCALL',
-        'steps': [
-            $CLEANUP_ENV,
-            {
-                'name':'RocksDB build and analyze',
-                'shell':'$CLANG $SHM $DEBUG make J=1 analyze',
-                'user':'root',
-                $PARSER
-            },
-        ],
-        $REPORT
-    }
-]"
-
-#
-# RocksDB code coverage
-#
-CODE_COV_COMMANDS="[
-    {
-        'name':'Rocksdb Unit Test Code Coverage',
-        'oncall':'$ONCALL',
-        'steps': [
-            $CLEANUP_ENV,
-            {
-                'name':'Build, test and collect code coverage info',
-                'shell':'$SHM $DEBUG make J=1 coverage',
-                'user':'root',
-                $PARSER
-            },
-        ],
-        $REPORT
-    }
-]"
-
-#
-# RocksDB unity
-#
-UNITY_COMMANDS="[
-    {
-        'name':'Rocksdb Unity',
-        'oncall':'$ONCALL',
-        'steps': [
-            $CLEANUP_ENV,
-            {
-                'name':'Build, test unity test',
-                'shell':'$SHM $DEBUG V=1 make J=1 unity_test',
-                'user':'root',
-                $PARSER
-            },
-        ],
-        $REPORT
-    }
-]"
-
-#
-# Build RocksDB lite
-#
-LITE_BUILD_COMMANDS="[
-    {
-        'name':'Rocksdb Lite build',
-        'oncall':'$ONCALL',
-        'steps': [
-            $CLEANUP_ENV,
-            {
-                'name':'Build RocksDB debug version',
-                'shell':'$LITE $DEBUG make J=1 static_lib',
-                'user':'root',
-                $PARSER
-            },
-        ],
-        $REPORT
-    }
-]"
-
-#
-# RocksDB lite tests
-#
-LITE_UNIT_TEST_COMMANDS="[
-    {
-        'name':'Rocksdb Lite Unit Test',
-        'oncall':'$ONCALL',
-        'steps': [
-            $CLEANUP_ENV,
-            {
-                'name':'Build RocksDB debug version',
-                'shell':'$SHM $LITE $DEBUG make J=1 check',
-                'user':'root',
-                $PARSER
-            },
-        ],
-        $REPORT
-    }
-]"
-
-#
-# RocksDB stress/crash test
-#
-STRESS_CRASH_TEST_COMMANDS="[
-    {
-        'name':'Rocksdb Stress/Crash Test',
-        'oncall':'$ONCALL',
-        'timeout': 86400,
-        'steps': [
-            $CLEANUP_ENV,
-            {
-                'name':'Build and run RocksDB debug stress tests',
-                'shell':'$SHM $DEBUG make J=1 db_stress',
-                'user':'root',
-                $PARSER
-            },
-            {
-                'name':'Build and run RocksDB debug crash tests',
-                'timeout': 86400,
-                'shell':'$SHM $DEBUG make J=1 crash_test',
-                'user':'root',
-                $PARSER
-            }
-        ],
-        $ARTIFACTS,
-        $REPORT
-    }
-]"
-
-# RocksDB write stress test.
-# We run on disk device on purpose (i.e. no $SHM)
-# because we want to add some randomness to fsync commands
-WRITE_STRESS_COMMANDS="[
-    {
-        'name':'Rocksdb Write Stress Test',
-        'oncall':'$ONCALL',
-        'steps': [
-            $CLEANUP_ENV,
-            {
-                'name':'Build and run RocksDB write stress tests',
-                'shell':'make write_stress && python tools/write_stress_runner.py --runtime_sec=3600 --db=/tmp/rocksdb_write_stress',
-                'user':'root',
-                $PARSER
-            }
-        ],
-        'artifacts': [{'name': 'database', 'paths': ['/tmp/rocksdb_write_stress']}],
-        $REPORT
-    }
-]"
-
-
-#
-# RocksDB test under address sanitizer
-#
-ASAN_TEST_COMMANDS="[
-    {
-        'name':'Rocksdb Unit Test under ASAN',
-        'oncall':'$ONCALL',
-        'steps': [
-            $CLEANUP_ENV,
-            {
-                'name':'Test RocksDB debug under ASAN',
-                'shell':'set -o pipefail && $SHM $ASAN $DEBUG make J=1 asan_check |& /usr/facebook/ops/scripts/asan_symbolize.py -d',
-                'user':'root',
-                $PARSER
-            }
-        ],
-        $REPORT
-    }
-]"
-
-#
-# RocksDB crash testing under address sanitizer
-#
-ASAN_CRASH_TEST_COMMANDS="[
-    {
-        'name':'Rocksdb crash test under ASAN',
-        'oncall':'$ONCALL',
-        'timeout': 86400,
-        'steps': [
-            $CLEANUP_ENV,
-            {
-                'name':'Build and run RocksDB debug asan_crash_test',
-                'timeout': 86400,
-                'shell':'$SHM $DEBUG make J=1 asan_crash_test',
-                'user':'root',
-                $PARSER
-            },
-        ],
-        $REPORT
-    }
-]"
-
-#
-# RocksDB unit test under valgrind
-#
-VALGRIND_TEST_COMMANDS="[
-    {
-        'name':'Rocksdb Unit Test under valgrind',
-        'oncall':'$ONCALL',
-        'steps': [
-            $CLEANUP_ENV,
-            {
-                'name':'Run RocksDB debug unit tests',
-                'shell':'$DISABLE_JEMALLOC $SHM $DEBUG make valgrind_check',
-                'user':'root',
-                $PARSER
-            },
-        ],
-        $REPORT
-    }
-]"
-
-#
-# RocksDB test under TSAN
-#
-TSAN_UNIT_TEST_COMMANDS="[
-    {
-        'name':'Rocksdb Unit Test under TSAN',
-        'oncall':'$ONCALL',
-        'steps': [
-            $CLEANUP_ENV,
-            {
-                'name':'Run RocksDB debug unit test',
-                'shell':'set -o pipefail && $SHM $DEBUG $TSAN make J=1 check',
-                'user':'root',
-                $PARSER
-            },
-        ],
-        $REPORT
-    }
-]"
-
-#
-# RocksDB crash test under TSAN
-#
-TSAN_CRASH_TEST_COMMANDS="[
-    {
-        'name':'Rocksdb Crash Test under TSAN',
-        'oncall':'$ONCALL',
-        'timeout': 86400,
-        'steps': [
-            $CLEANUP_ENV,
-            {
-                'name':'Compile and run',
-                'timeout': 86400,
-                'shell':'set -o pipefail && $SHM $DEBUG $TSAN make J=1 crash_test',
-                'user':'root',
-                $PARSER
-            },
-        ],
-        $REPORT
-    }
-]"
-
-TSAN_CRASH_TEST_COMMANDS=$DISABLE_COMMANDS
-
-#
-# RocksDB format compatible
-#
-
-run_format_compatible()
-{
-  export TEST_TMPDIR=/dev/shm/rocksdb
-  rm -rf /dev/shm/rocksdb
-  mkdir /dev/shm/rocksdb
-
-  echo '
-  if [ -e "build_tools/build_detect_platform" ]
-  then
-    sed "s/tcmalloc/nothingnothingnothing/g" build_tools/build_detect_platform > $TEST_TMPDIR/temp_build_file
-    rm -rf build_tools/build_detect_platform
-    cp $TEST_TMPDIR/temp_build_file build_tools/build_detect_platform
-    chmod +x build_tools/build_detect_platform
-  fi
-
-  if [ -e "build_detect_platform" ]
-  then
-    sed "s/tcmalloc/nothingnothingnothing/g" build_detect_platform > $TEST_TMPDIR/temp_build_file
-    rm -rf build_detect_platform 
-    cp $TEST_TMPDIR/temp_build_file build_detect_platform
-    chmod +x build_detect_platform 
-  fi
-
-  make ldb -j32
-
-  if [ -e "build_detect_platform" ]
-  then
-    git checkout -- build_detect_platform
-  fi
-
-  if [ -e "build_tools/build_detect_platform" ]
-  then
-    git checkout -- build_tools/build_detect_platform
-  fi
-  ' > temp_build_ldb.sh
-
-  sed "s/make ldb -j32/source temp_build_ldb.sh/g" tools/check_format_compatible.sh > tools/temp_check_format_compatible.sh
-  chmod +x tools/temp_check_format_compatible.sh
-  tools/temp_check_format_compatible.sh
-}
-
-FORMAT_COMPATIBLE_COMMANDS="[
-    {
-        'name':'Rocksdb Format Compatible tests',
-        'oncall':'$ONCALL',
-        'steps': [
-            $CLEANUP_ENV,
-            {
-                'name':'Run RocksDB debug unit test',
-                'shell':'build_tools/rocksdb-lego-determinator run_format_compatible',
-                'user':'root',
-                $PARSER
-            },
-        ],
-        $REPORT
-    }
-]"
-
-#
-# RocksDB no compression
-#
-run_no_compression()
-{
-  export TEST_TMPDIR=/dev/shm/rocksdb
-  rm -rf /dev/shm/rocksdb
-  mkdir /dev/shm/rocksdb
-  make clean
-  cat build_tools/fbcode_config.sh | grep -iv dzlib | grep -iv dlz4 | grep -iv dsnappy | grep -iv dbzip2 > .tmp.fbcode_config.sh
-  mv .tmp.fbcode_config.sh build_tools/fbcode_config.sh
-  cat Makefile | grep -v tools/ldb_test.py > .tmp.Makefile
-  mv .tmp.Makefile Makefile
-  make $DEBUG J=1 check
-}
-
-NO_COMPRESSION_COMMANDS="[
-    {
-        'name':'Rocksdb No Compression tests',
-        'oncall':'$ONCALL',
-        'steps': [
-            $CLEANUP_ENV,
-            {
-                'name':'Run RocksDB debug unit test',
-                'shell':'build_tools/rocksdb-lego-determinator run_no_compression',
-                'user':'root',
-                $PARSER
-            },
-        ],
-        $REPORT
-    }
-]"
-
-#
-# RocksDB regression
-#
-run_regression()
-{
-  time -v bash -vx ./build_tools/regression_build_test.sh $(mktemp -d  $WORKSPACE/leveldb.XXXX) $(mktemp leveldb_test_stats.XXXX)
-
-  # ======= report size to ODS ========
-
-  # parameters: $1 -- key, $2 -- value
-  function send_size_to_ods {
-    curl -s "https://www.intern.facebook.com/intern/agent/ods_set.php?entity=rocksdb_build&key=rocksdb.build_size.$1&value=$2" \
-      --connect-timeout 60
-  }
-
-  # === normal build ===
-  make clean
-  make -j$(nproc) static_lib
-  send_size_to_ods static_lib $(stat --printf="%s" librocksdb.a)
-  strip librocksdb.a
-  send_size_to_ods static_lib_stripped $(stat --printf="%s" librocksdb.a)
-
-  make -j$(nproc) shared_lib
-  send_size_to_ods shared_lib $(stat --printf="%s" `readlink -f librocksdb.so`)
-  strip `readlink -f librocksdb.so`
-  send_size_to_ods shared_lib_stripped $(stat --printf="%s" `readlink -f librocksdb.so`)
-
-  # === lite build ===
-  make clean
-  OPT=-DROCKSDB_LITE make -j$(nproc) static_lib
-  send_size_to_ods static_lib_lite $(stat --printf="%s" librocksdb.a)
-  strip librocksdb.a
-  send_size_to_ods static_lib_lite_stripped $(stat --printf="%s" librocksdb.a)
-
-  OPT=-DROCKSDB_LITE make -j$(nproc) shared_lib
-  send_size_to_ods shared_lib_lite $(stat --printf="%s" `readlink -f librocksdb.so`)
-  strip `readlink -f librocksdb.so`
-  send_size_to_ods shared_lib_lite_stripped $(stat --printf="%s" `readlink -f librocksdb.so`)
-}
-
-REGRESSION_COMMANDS="[
-    {
-        'name':'Rocksdb regression commands',
-        'oncall':'$ONCALL',
-        'steps': [
-            $CLEANUP_ENV,
-            {
-                'name':'Make and run script',
-                'shell':'build_tools/rocksdb-lego-determinator run_regression',
-                'user':'root',
-                $PARSER
-            },
-        ],
-        $REPORT
-    }
-]"
-
-case $1 in
-  punit)
-    echo $PARALLEL_UNIT_TEST_COMMANDS
-    ;;
-  unit)
-    echo $UNIT_TEST_COMMANDS
-    ;;
-  unit_481)
-    echo $UNIT_TEST_COMMANDS_481
-    ;;
-  clang_unit)
-    echo $CLANG_UNIT_TEST_COMMANDS
-    ;;
-  clang_analyze)
-    echo $CLANG_ANALYZE_COMMANDS
-    ;;
-  code_cov)
-    echo $CODE_COV_COMMANDS
-    ;;
-  unity)
-    echo $UNITY_COMMANDS
-    ;;
-  lite)
-    echo $LITE_BUILD_COMMANDS
-    ;;
-  lite_test)
-    echo $LITE_UNIT_TEST_COMMANDS
-    ;;
-  stress_crash)
-    echo $STRESS_CRASH_TEST_COMMANDS
-    ;;
-  write_stress)
-    echo $WRITE_STRESS_COMMANDS
-    ;;
-  asan)
-    echo $ASAN_TEST_COMMANDS
-    ;;
-  asan_crash)
-    echo $ASAN_CRASH_TEST_COMMANDS
-    ;;
-  valgrind)
-    echo $VALGRIND_TEST_COMMANDS
-    ;;
-  tsan)
-    echo $TSAN_UNIT_TEST_COMMANDS
-    ;;
-  tsan_crash)
-    echo $TSAN_CRASH_TEST_COMMANDS
-    ;;
-  format_compatible)
-    echo $FORMAT_COMPATIBLE_COMMANDS
-    ;;
-  run_format_compatible)
-    run_format_compatible
-    ;;
-  no_compression)
-    echo $NO_COMPRESSION_COMMANDS
-    ;;
-  run_no_compression)
-    run_no_compression
-    ;;
-  regression)
-    echo $REGRESSION_COMMANDS
-    ;;
-  run_regression)
-    run_regression
-    ;;
-  *)
-    echo "Invalid determinator command"
-    ;;
-esac

build_tools/run_ci_db_test.ps1

@@ -1,318 +0,0 @@
-# This script enables you running RocksDB tests by running
-# All the tests in parallel and utilizing all the cores
-# For db_test the script first lists and parses the tests
-# and then fires them up in parallel using async PS Job functionality
-# Run the script from the enlistment
-Param(
-  [switch]$EnableJE = $false,  # Use je executable
-  [switch]$EnableRerun = $false, # Rerun failed tests sequentially at the end
-  [string]$WorkFolder = "",  # Direct tests to use that folder
-  [int]$Limit = -1, # -1 means run all otherwise limit for testing purposes
-  [string]$Exclude = "", # Expect a comma separated list, no spaces
-  [string]$Run = "db_test",  # Run db_test|tests|testname1,testname2...
-   # Number of async tasks that would run concurrently. Recommend a number below 64.
-   # However, CPU utlization really depends on the storage media. Recommend ram based disk.
-   # a value of 1 will run everything serially
-  [int]$Concurrency = 16
-)
-
-# Folders and commands must be fullpath to run assuming
-# the current folder is at the root of the git enlistment
-Get-Date
-
-# If running under Appveyor assume that root
-[string]$Appveyor = $Env:APPVEYOR_BUILD_FOLDER
-if($Appveyor -ne "") {
-    $RootFolder = $Appveyor
-} else {
-    $RootFolder = $PSScriptRoot -replace '\\build_tools', ''
-}
-
-$LogFolder = -Join($RootFolder, "\db_logs\")
-$BinariesFolder = -Join($RootFolder, "\build\Debug\")
-
-if($WorkFolder -eq "") {
-
-    # If TEST_TMPDIR is set use it    
-    [string]$var = $Env:TEST_TMPDIR
-    if($var -eq "") {
-        $WorkFolder = -Join($RootFolder, "\db_tests\")
-        $Env:TEST_TMPDIR = $WorkFolder
-    } else {
-        $WorkFolder = $var
-    }
-} else {
-# Override from a command line
-  $Env:TEST_TMPDIR = $WorkFolder
-}
-
-# Use JEMALLOC executables
-if($EnableJE) {
-    $db_test = -Join ($BinariesFolder, "db_test_je.exe")
-} else {
-    $db_test = -Join ($BinariesFolder, "db_test.exe")
-}
-
-Write-Output "Root: $RootFolder, WorkFolder: $WorkFolder"
-Write-Output "Binaries: $BinariesFolder db_test: $db_test"
-
-#Exclusions that we do not want to run
-$ExcludeTests = New-Object System.Collections.Generic.HashSet[string]
-
-
-if($Exclude -ne "") {
-    Write-Host "Exclude: $Exclude"
-    $l = $Exclude -split ' '
-    ForEach($t in $l) { $ExcludeTests.Add($t) | Out-Null }
-}
-
-# Create test directories in the current folder
-md -Path $WorkFolder -ErrorAction Ignore | Out-Null
-md -Path $LogFolder -ErrorAction Ignore | Out-Null
-
-# Extract the names of its tests by running db_test with --gtest_list_tests.
-# This filter removes the "#"-introduced comments, and expands to
-# fully-qualified names by changing input like this:
-#
-#   DBTest.
-#     Empty
-#     WriteEmptyBatch
-#   MultiThreaded/MultiThreadedDBTest.
-#     MultiThreaded/0  # GetParam() = 0
-#     MultiThreaded/1  # GetParam() = 1
-#
-# into this:
-#
-#   DBTest.Empty
-#   DBTest.WriteEmptyBatch
-#   MultiThreaded/MultiThreadedDBTest.MultiThreaded/0
-#   MultiThreaded/MultiThreadedDBTest.MultiThreaded/1
-# Output into the parameter in a form TestName -> Log File Name
-function Normalize-DbTests($HashTable) {
-
-    $Tests = @()
-# Run db_test to get a list of tests and store it into $a array
-    &$db_test --gtest_list_tests | tee -Variable Tests | Out-Null
-
-    # Current group
-    $Group=""
-
-    ForEach( $l in $Tests) {
-      # Trailing dot is a test group
-      if( $l -match "\.$") {
-        $Group = $l
-      }  else {
-        # Otherwise it is a test name, remove leading space
-        $test = $l -replace '^\s+',''
-        # remove trailing comment if any and create a log name
-        $test = $test -replace '\s+\#.*',''
-        $test = "$Group$test"
-
-        if($ExcludeTests.Contains($test)) {
-            continue
-        }
-
-        $test_log = $test -replace '[\./]','_'
-        $test_log += ".log"
-        $log_path = -join ($LogFolder, $test_log)
-
-        # Add to a hashtable
-        $HashTable.Add($test, $log_path);
-      }
-    }
-}
-
-# The function removes trailing .exe siffix if any,
-# creates a name for the log file
-function MakeAndAdd([string]$token, $HashTable) {
-    $test_name = $token -replace '.exe$', ''
-    $log_name =  -join ($test_name, ".log")
-    $log_path = -join ($LogFolder, $log_name)
-    if(!$ExcludeTests.Contains($test_name)) {
-        $HashTable.Add($test_name, $log_path)
-    } else {
-        Write-Warning "Test $test_name is excluded"
-    }
-}
-
-# The function scans build\Debug folder to discover
-# Test executables. It then populates a table with
-# Test executable name -> Log file
-function Discover-TestBinaries([string]$Pattern, $HashTable) {
-
-    $Exclusions = @("db_test*", "db_sanity_test*")
-
-    $p = -join ($BinariesFolder, $pattern)
-
-    Write-Host "Path: $p"
-
-    dir -Path $p -Exclude $Exclusions | ForEach-Object {
-       MakeAndAdd -token ($_.Name) -HashTable $HashTable
-    }
-}
-
-$TestsToRun = [ordered]@{}
-
-if($Run -ceq "db_test") {
-    Normalize-DbTests -HashTable $TestsToRun
-} elseif($Run -ceq "tests") {
-    if($EnableJE) {
-        $pattern = "*_test_je.exe"
-    } else {
-        $pattern = "*_test.exe"
-    }
-    Discover-TestBinaries -Pattern $pattern -HashTable $TestsToRun
-} else {
-
-    $test_list = $Run -split ' '
-
-    ForEach($t in $test_list) {
-       MakeAndAdd -token $t -HashTable $TestsToRun
-    }
-}
-
-$NumTestsToStart = $TestsToRun.Count
-if($Limit -ge 0 -and $NumTestsToStart -gt $Limit) {
-    $NumTestsToStart = $Limit
-}
-
-Write-Host "Attempting to start: $NumTestsToStart tests"
-
-# Invoke a test with a filter and redirect all output
-$InvokeTestCase = {
-    param($exe, $test, $log);
-    &$exe --gtest_filter=$test > $log 2>&1
-}
-
-# Invoke all tests and redirect output
-$InvokeTestAsync = {
-    param($exe, $log)
-    &$exe > $log 2>&1
-}
-
-# Hash that contains tests to rerun if any failed
-# Those tests will be rerun sequentially
-$Rerun = [ordered]@{}
-# Test limiting factor here
-$count = 0
-# Overall status
-[bool]$success = $true;
-
-function RunJobs($TestToLog, [int]$ConcurrencyVal, [bool]$AddForRerun)
-{
-    # Array to wait for any of the running jobs
-    $jobs = @()
-    # Hash JobToLog
-    $JobToLog = @{}
-
-    # Wait for all to finish and get the results
-    while(($JobToLog.Count -gt 0) -or
-          ($TestToLog.Count -gt 0)) {
-
-        # Make sure we have maximum concurrent jobs running if anything
-        # and the $Limit either not set or allows to proceed
-        while(($JobToLog.Count -lt $ConcurrencyVal) -and
-              (($TestToLog.Count -gt 0) -and
-              (($Limit -lt 0) -or ($count -lt $Limit)))) {
-
-
-            # We only need the first key
-            foreach($key in $TestToLog.keys) {
-                $k = $key
-                break
-            }
-
-            Write-Host "Starting $k"
-            $log_path = ($TestToLog.$k)
-
-            if($Run -ceq "db_test") {
-              $job = Start-Job -Name $k -ScriptBlock $InvokeTestCase -ArgumentList @($db_test,$k,$log_path)
-            } else {
-              [string]$Exe =  -Join ($BinariesFolder, $k)
-               $job = Start-Job -Name $k -ScriptBlock $InvokeTestAsync -ArgumentList @($exe,$log_path)
-            }
-
-            $JobToLog.Add($job, $log_path)
-            $TestToLog.Remove($k)
-
-            ++$count
-        }
-
-        if($JobToLog.Count -lt 1) {
-          break
-        }
-
-        $jobs = @()
-        foreach($k in $JobToLog.Keys) { $jobs += $k }
-
-        $completed = Wait-Job -Job $jobs -Any
-        $log = $JobToLog[$completed]
-        $JobToLog.Remove($completed)
-
-        $message = -join @($completed.Name, " State: ", ($completed.State))
-
-        $log_content = @(Get-Content $log)
-
-        if($completed.State -ne "Completed") {
-            $success = $false
-            Write-Warning $message
-            $log_content | Write-Warning
-        } else {
-            # Scan the log. If we find PASSED and no occurrence of FAILED
-            # then it is a success
-            [bool]$pass_found = $false
-            ForEach($l in $log_content) {
-
-                if(($l -match "^\[\s+FAILED") -or
-                   ($l -match "Assertion failed:")) {
-                    $pass_found = $false
-                    break
-                }
-
-                if(($l -match "^\[\s+PASSED") -or
-                   ($l -match " : PASSED$") -or
-                    ($l -match "^PASS$") -or   # Special c_test case
-                    ($l -match "Passed all tests!") ) {
-                    $pass_found = $true
-                }
-            }
-
-            if(!$pass_found) {
-                $success = $false;
-                Write-Warning $message
-                $log_content | Write-Warning
-                if($AddForRerun) {
-                    $Rerun.Add($completed.Name, $log)
-                }
-            } else {
-                Write-Host $message
-            }
-        }
-
-        # Remove cached job info from the system
-        # Should be no output
-        Receive-Job -Job $completed | Out-Null
-    }
-}
-
-RunJobs -TestToLog $TestsToRun -ConcurrencyVal $Concurrency -AddForRerun $EnableRerun
-
-if($Rerun.Count -gt 0) {
-    Write-Host "Rerunning " ($Rerun.Count) " tests sequentially"
-    $success = $true
-    $count = 0
-    RunJobs -TestToLog $Rerun -ConcurrencyVal 1 -AddForRerun $false
-}
-
-Get-Date
-
-
-if(!$success) {
-# This does not succeed killing off jobs quick
-# So we simply exit
-#    Remove-Job -Job $jobs -Force
-# indicate failure using this exit code
-    exit 12345
- }
-
- 

build_tools/unity

@@ -0,0 +1,78 @@
+#!/bin/sh
+#
+# Create the unity file
+#
+
+OUTPUT=$1
+if test -z "$OUTPUT"; then
+  echo "usage: $0 <output-filename>" >&2
+  exit 1
+fi
+
+# Delete existing file, if it exists
+rm -f "$OUTPUT"
+touch "$OUTPUT"
+
+# Detect OS
+if test -z "$TARGET_OS"; then
+    TARGET_OS=`uname -s`
+fi
+
+# generic port files (working on all platform by #ifdef) go directly in /port
+GENERIC_PORT_FILES=`cd "$ROCKSDB_ROOT"; find port -name '*.cc' | tr "\n" " "`
+
+# On GCC, we pick libc's memcmp over GCC's memcmp via -fno-builtin-memcmp
+case "$TARGET_OS" in
+    Darwin)
+        # PORT_FILES=port/darwin/darwin_specific.cc
+        ;;
+    IOS)
+        ;;
+    Linux)
+        # PORT_FILES=port/linux/linux_specific.cc
+        ;;
+    SunOS)
+        # PORT_FILES=port/sunos/sunos_specific.cc
+        ;;
+    FreeBSD)
+        # PORT_FILES=port/freebsd/freebsd_specific.cc
+        ;;
+    NetBSD)
+        # PORT_FILES=port/netbsd/netbsd_specific.cc
+        ;;
+    OpenBSD)
+        # PORT_FILES=port/openbsd/openbsd_specific.cc
+        ;;
+    DragonFly)
+        # PORT_FILES=port/dragonfly/dragonfly_specific.cc
+        ;;
+    OS_ANDROID_CROSSCOMPILE)
+        # PORT_FILES=port/android/android.cc
+        ;;
+    *)
+        echo "Unknown platform!" >&2
+        exit 1
+esac
+
+# We want to make a list of all cc files within util, db, table, and helpers
+# except for the test and benchmark files. By default, find will output a list
+# of all files matching either rule, so we need to append -print to make the
+# prune take effect.
+DIRS="util db table utilities"
+
+set -f # temporarily disable globbing so that our patterns arent expanded
+PRUNE_TEST="-name *test*.cc -prune"
+PRUNE_BENCH="-name *bench*.cc -prune"
+PORTABLE_FILES=`cd "$ROCKSDB_ROOT"; find $DIRS $PRUNE_TEST -o $PRUNE_BENCH -o -name '*.cc' -print | sort`
+PORTABLE_CPP=`cd "$ROCKSDB_ROOT"; find $DIRS $PRUNE_TEST -o $PRUNE_BENCH -o -name '*.cpp' -print | sort`
+set +f # re-enable globbing
+
+# The sources consist of the portable files, plus the platform-specific port
+# file.
+for SOURCE_FILE in $PORTABLE_FILES $GENERIC_PORT_FILES $PORT_FILES $PORTABLE_CPP
+do
+	echo "#include <$SOURCE_FILE>" >> "$OUTPUT"
+done
+
+echo "int main(int argc, char** argv){ return 0; }" >> "$OUTPUT"
+

build_tools/update_dependencies.sh

@@ -1,127 +0,0 @@
-#!/bin/sh
-#
-# Update dependencies.sh file with the latest avaliable versions
-
-BASEDIR=$(dirname $0)
-OUTPUT=""
-
-function log_variable()
-{
-  echo "$1=${!1}" >> "$OUTPUT"
-}
-
-
-TP2_LATEST="/mnt/vol/engshare/fbcode/third-party2"
-## $1 => lib name
-## $2 => lib version (if not provided, will try to pick latest)
-## $3 => platform (if not provided, will try to pick latest gcc)
-##
-## get_lib_base will set a variable named ${LIB_NAME}_BASE to the lib location
-function get_lib_base()
-{
-  local lib_name=$1
-  local lib_version=$2
-  local lib_platform=$3
-
-  local result="$TP2_LATEST/$lib_name/"
-  
-  # Lib Version
-  if [ -z "$lib_version" ] || [ "$lib_version" = "LATEST" ]; then
-    # version is not provided, use latest
-    result=`ls -dr1v $result/*/ | head -n1`
-  else
-    result="$result/$lib_version/"
-  fi
-  
-  # Lib Platform
-  if [ -z "$lib_platform" ]; then
-    # platform is not provided, use latest gcc
-    result=`ls -dr1v $result/gcc-*[^fb]/ | head -n1`
-  else
-    result="$result/$lib_platform/"
-  fi
-  
-  result=`ls -1d $result/*/ | head -n1`
-  
-  # lib_name => LIB_NAME_BASE
-  local __res_var=${lib_name^^}"_BASE"
-  __res_var=`echo $__res_var | tr - _`
-  # LIB_NAME_BASE=$result
-  eval $__res_var=`readlink -f $result`
-  
-  log_variable $__res_var
-}
-
-###########################################################
-#                   4.9.x dependencies                    #
-###########################################################
-
-OUTPUT="$BASEDIR/dependencies.sh"
-
-rm -f "$OUTPUT"
-touch "$OUTPUT"
-
-echo "Writing dependencies to $OUTPUT"
-
-# Compilers locations
-GCC_BASE=`readlink -f $TP2_LATEST/gcc/4.9.x/centos6-native/*/`
-CLANG_BASE=`ls -d1 /mnt/gvfs/third-party2/clang/fc904e50a9266b9d7b98cae1993afa0c5aae1440/3.7.1/centos6-native/*/ | head -n1`
-
-log_variable GCC_BASE
-log_variable CLANG_BASE
-
-# Libraries locations
-get_lib_base libgcc     4.9.x
-get_lib_base glibc      2.20 
-get_lib_base snappy     LATEST
-get_lib_base zlib       LATEST
-get_lib_base bzip2      LATEST
-get_lib_base lz4        LATEST
-get_lib_base zstd       LATEST
-get_lib_base gflags     LATEST
-get_lib_base jemalloc   LATEST
-get_lib_base numa       LATEST
-get_lib_base libunwind  LATEST
-
-get_lib_base kernel-headers LATEST 
-get_lib_base binutils   LATEST centos6-native 
-get_lib_base valgrind   LATEST
-
-git diff $OUTPUT
-
-###########################################################
-#                   4.8.1 dependencies                    #
-###########################################################
-
-OUTPUT="$BASEDIR/dependencies_4.8.1.sh"
-
-rm -f "$OUTPUT"
-touch "$OUTPUT"
-
-echo "Writing 4.8.1 dependencies to $OUTPUT"
-
-# Compilers locations
-GCC_BASE=`readlink -f $TP2_LATEST/gcc/4.8.1/centos6-native/*/`
-CLANG_BASE=`ls -d1 /mnt/gvfs/third-party2/clang/fc904e50a9266b9d7b98cae1993afa0c5aae1440/3.7.1/centos6-native/*/ | head -n1`
-
-log_variable GCC_BASE
-log_variable CLANG_BASE
-
-# Libraries locations
-get_lib_base libgcc     4.8.1  gcc-4.8.1-glibc-2.17
-get_lib_base glibc      2.17   gcc-4.8.1-glibc-2.17  
-get_lib_base snappy     LATEST gcc-4.8.1-glibc-2.17
-get_lib_base zlib       LATEST gcc-4.8.1-glibc-2.17
-get_lib_base bzip2      LATEST gcc-4.8.1-glibc-2.17
-get_lib_base lz4        LATEST gcc-4.8.1-glibc-2.17
-get_lib_base zstd       LATEST gcc-4.8.1-glibc-2.17
-get_lib_base gflags     LATEST gcc-4.8.1-glibc-2.17
-get_lib_base jemalloc   LATEST gcc-4.8.1-glibc-2.17
-get_lib_base numa       LATEST gcc-4.8.1-glibc-2.17
-get_lib_base libunwind  LATEST gcc-4.8.1-glibc-2.17
-
-get_lib_base kernel-headers LATEST gcc-4.8.1-glibc-2.17 
-get_lib_base binutils   LATEST centos6-native 
-get_lib_base valgrind   3.8.1  gcc-4.8.1-glibc-2.17
-
-git diff $OUTPUT

build_tools/valgrind_test.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+#A shell script for Jenknis to run valgrind on rocksdb tests
+#Returns 0 on success when there are no failed tests 
+
+VALGRIND_DIR=build_tools/VALGRIND_LOGS
+make clean
+make -j$(nproc) valgrind_check
+NUM_FAILED_TESTS=$((`wc -l $VALGRIND_DIR/valgrind_failed_tests | awk '{print $1}'` - 1))
+if [ $NUM_FAILED_TESTS -lt 1 ]; then
+  echo No tests have valgrind errors
+  exit 0
+else
+  cat $VALGRIND_DIR/valgrind_failed_tests
+  exit 1
+fi

coverage/coverage_test.sh

@@ -11,8 +11,8 @@ fi
 ROOT=".."
 # Fetch right version of gcov
 if [ -d /mnt/gvfs/third-party -a -z "$CXX" ]; then
-  source $ROOT/build_tools/fbcode_config.sh
-  GCOV=$GCC_BASE/bin/gcov
+  source $ROOT/build_tools/fbcode.gcc471.sh
+  GCOV=$TOOLCHAIN_EXECUTABLES/gcc/gcc-4.7.1/cc6c9dc/bin/gcov
 else
   GCOV=$(which gcov)
 fi

db/builder.cc

@@ -1,4 +1,4 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+//  Copyright (c) 2013, Facebook, Inc.  All rights reserved.
 //  This source code is licensed under the BSD-style license found in the
 //  LICENSE file in the root directory of this source tree. An additional grant
 //  of patent rights can be found in the PATENTS file in the same directory.
@@ -9,14 +9,8 @@
 
 #include "db/builder.h"
 
-#include <algorithm>
-#include <deque>
-#include <vector>
-
-#include "db/compaction_iterator.h"
 #include "db/dbformat.h"
 #include "db/filename.h"
-#include "db/internal_stats.h"
 #include "db/merge_helper.h"
 #include "db/table_cache.h"
 #include "db/version_edit.h"
@@ -26,136 +20,205 @@
 #include "rocksdb/options.h"
 #include "rocksdb/table.h"
 #include "table/block_based_table_builder.h"
-#include "table/internal_iterator.h"
-#include "util/file_reader_writer.h"
-#include "util/iostats_context_imp.h"
 #include "util/stop_watch.h"
-#include "util/thread_status_util.h"
 
 namespace rocksdb {
 
 class TableFactory;
 
-TableBuilder* NewTableBuilder(
-    const ImmutableCFOptions& ioptions,
-    const InternalKeyComparator& internal_comparator,
-    const std::vector<std::unique_ptr<IntTblPropCollectorFactory>>*
-        int_tbl_prop_collector_factories,
-    uint32_t column_family_id, WritableFileWriter* file,
-    const CompressionType compression_type,
-    const CompressionOptions& compression_opts, const bool skip_filters) {
+TableBuilder* NewTableBuilder(const ImmutableCFOptions& ioptions,
+                              const InternalKeyComparator& internal_comparator,
+                              WritableFile* file,
+                              const CompressionType compression_type,
+                              const CompressionOptions& compression_opts) {
   return ioptions.table_factory->NewTableBuilder(
-      TableBuilderOptions(ioptions, internal_comparator,
-                          int_tbl_prop_collector_factories, compression_type,
-                          compression_opts, skip_filters),
-      column_family_id, file);
+      ioptions, internal_comparator, file, compression_type, compression_opts);
 }
 
-Status BuildTable(
-    const std::string& dbname, Env* env, const ImmutableCFOptions& ioptions,
-    const EnvOptions& env_options, TableCache* table_cache,
-    InternalIterator* iter, FileMetaData* meta,
-    const InternalKeyComparator& internal_comparator,
-    const std::vector<std::unique_ptr<IntTblPropCollectorFactory>>*
-        int_tbl_prop_collector_factories,
-    uint32_t column_family_id, std::vector<SequenceNumber> snapshots,
-    SequenceNumber earliest_write_conflict_snapshot,
-    const CompressionType compression,
-    const CompressionOptions& compression_opts, bool paranoid_file_checks,
-    InternalStats* internal_stats, const Env::IOPriority io_priority,
-    TableProperties* table_properties) {
-  // Reports the IOStats for flush for every following bytes.
-  const size_t kReportFlushIOStatsEvery = 1048576;
+Status BuildTable(const std::string& dbname, Env* env,
+                  const ImmutableCFOptions& ioptions,
+                  const EnvOptions& env_options, TableCache* table_cache,
+                  Iterator* iter, FileMetaData* meta,
+                  const InternalKeyComparator& internal_comparator,
+                  const SequenceNumber newest_snapshot,
+                  const SequenceNumber earliest_seqno_in_memtable,
+                  const CompressionType compression,
+                  const CompressionOptions& compression_opts,
+                  const Env::IOPriority io_priority) {
   Status s;
   meta->fd.file_size = 0;
+  meta->smallest_seqno = meta->largest_seqno = 0;
   iter->SeekToFirst();
 
+  // If the sequence number of the smallest entry in the memtable is
+  // smaller than the most recent snapshot, then we do not trigger
+  // removal of duplicate/deleted keys as part of this builder.
+  bool purge = ioptions.purge_redundant_kvs_while_flush;
+  if (earliest_seqno_in_memtable <= newest_snapshot) {
+    purge = false;
+  }
+
   std::string fname = TableFileName(ioptions.db_paths, meta->fd.GetNumber(),
                                     meta->fd.GetPathId());
   if (iter->Valid()) {
-    TableBuilder* builder;
-    unique_ptr<WritableFileWriter> file_writer;
-    {
-      unique_ptr<WritableFile> file;
-      s = NewWritableFile(env, fname, &file, env_options);
-      if (!s.ok()) {
-        return s;
-      }
-      file->SetIOPriority(io_priority);
-
-      file_writer.reset(new WritableFileWriter(std::move(file), env_options));
-
-      builder = NewTableBuilder(
-          ioptions, internal_comparator, int_tbl_prop_collector_factories,
-          column_family_id, file_writer.get(), compression, compression_opts);
+    unique_ptr<WritableFile> file;
+    s = env->NewWritableFile(fname, &file, env_options);
+    if (!s.ok()) {
+      return s;
     }
+    file->SetIOPriority(io_priority);
 
-    MergeHelper merge(env, internal_comparator.user_comparator(),
-                      ioptions.merge_operator, nullptr, ioptions.info_log,
+    TableBuilder* builder = NewTableBuilder(
+        ioptions, internal_comparator, file.get(),
+        compression, compression_opts);
+
+    // the first key is the smallest key
+    Slice key = iter->key();
+    meta->smallest.DecodeFrom(key);
+    meta->smallest_seqno = GetInternalKeySeqno(key);
+    meta->largest_seqno = meta->smallest_seqno;
+
+    MergeHelper merge(internal_comparator.user_comparator(),
+                      ioptions.merge_operator, ioptions.info_log,
                       ioptions.min_partial_merge_operands,
-                      true /* internal key corruption is not ok */,
-                      snapshots.empty() ? 0 : snapshots.back());
+                      true /* internal key corruption is not ok */);
 
-    CompactionIterator c_iter(iter, internal_comparator.user_comparator(),
-                              &merge, kMaxSequenceNumber, &snapshots,
-                              earliest_write_conflict_snapshot, env,
-                              true /* internal key corruption is not ok */);
-    c_iter.SeekToFirst();
-    for (; c_iter.Valid(); c_iter.Next()) {
-      const Slice& key = c_iter.key();
-      const Slice& value = c_iter.value();
-      builder->Add(key, value);
-      meta->UpdateBoundaries(key, c_iter.ikey().sequence);
+    if (purge) {
+      // Ugly walkaround to avoid compiler error for release build
+      bool ok __attribute__((unused)) = true;
 
-      // TODO(noetzli): Update stats after flush, too.
-      if (io_priority == Env::IO_HIGH &&
-          IOSTATS(bytes_written) >= kReportFlushIOStatsEvery) {
-        ThreadStatusUtil::SetThreadOperationProperty(
-            ThreadStatus::FLUSH_BYTES_WRITTEN, IOSTATS(bytes_written));
+      // Will write to builder if current key != prev key
+      ParsedInternalKey prev_ikey;
+      std::string prev_key;
+      bool is_first_key = true;    // Also write if this is the very first key
+
+      while (iter->Valid()) {
+        bool iterator_at_next = false;
+
+        // Get current key
+        ParsedInternalKey this_ikey;
+        Slice key = iter->key();
+        Slice value = iter->value();
+
+        // In-memory key corruption is not ok;
+        // TODO: find a clean way to treat in memory key corruption
+        ok = ParseInternalKey(key, &this_ikey);
+        assert(ok);
+        assert(this_ikey.sequence >= earliest_seqno_in_memtable);
+
+        // If the key is the same as the previous key (and it is not the
+        // first key), then we skip it, since it is an older version.
+        // Otherwise we output the key and mark it as the "new" previous key.
+        if (!is_first_key && !internal_comparator.user_comparator()->Compare(
+                                  prev_ikey.user_key, this_ikey.user_key)) {
+          // seqno within the same key are in decreasing order
+          assert(this_ikey.sequence < prev_ikey.sequence);
+        } else {
+          is_first_key = false;
+
+          if (this_ikey.type == kTypeMerge) {
+            // TODO(tbd): Add a check here to prevent RocksDB from crash when
+            // reopening a DB w/o properly specifying the merge operator.  But
+            // currently we observed a memory leak on failing in RocksDB
+            // recovery, so we decide to let it crash instead of causing
+            // memory leak for now before we have identified the real cause
+            // of the memory leak.
+
+            // Handle merge-type keys using the MergeHelper
+            // TODO: pass statistics to MergeUntil
+            merge.MergeUntil(iter, 0 /* don't worry about snapshot */);
+            iterator_at_next = true;
+            if (merge.IsSuccess()) {
+              // Merge completed correctly.
+              // Add the resulting merge key/value and continue to next
+              builder->Add(merge.key(), merge.value());
+              prev_key.assign(merge.key().data(), merge.key().size());
+              ok = ParseInternalKey(Slice(prev_key), &prev_ikey);
+              assert(ok);
+            } else {
+              // Merge did not find a Put/Delete.
+              // Can not compact these merges into a kValueType.
+              // Write them out one-by-one. (Proceed back() to front())
+              const std::deque<std::string>& keys = merge.keys();
+              const std::deque<std::string>& values = merge.values();
+              assert(keys.size() == values.size() && keys.size() >= 1);
+              std::deque<std::string>::const_reverse_iterator key_iter;
+              std::deque<std::string>::const_reverse_iterator value_iter;
+              for (key_iter=keys.rbegin(), value_iter = values.rbegin();
+                   key_iter != keys.rend() && value_iter != values.rend();
+                   ++key_iter, ++value_iter) {
+
+                builder->Add(Slice(*key_iter), Slice(*value_iter));
+              }
+
+              // Sanity check. Both iterators should end at the same time
+              assert(key_iter == keys.rend() && value_iter == values.rend());
+
+              prev_key.assign(keys.front());
+              ok = ParseInternalKey(Slice(prev_key), &prev_ikey);
+              assert(ok);
+            }
+          } else {
+            // Handle Put/Delete-type keys by simply writing them
+            builder->Add(key, value);
+            prev_key.assign(key.data(), key.size());
+            ok = ParseInternalKey(Slice(prev_key), &prev_ikey);
+            assert(ok);
+          }
+        }
+
+        if (!iterator_at_next) iter->Next();
+      }
+
+      // The last key is the largest key
+      meta->largest.DecodeFrom(Slice(prev_key));
+      SequenceNumber seqno = GetInternalKeySeqno(Slice(prev_key));
+      meta->smallest_seqno = std::min(meta->smallest_seqno, seqno);
+      meta->largest_seqno = std::max(meta->largest_seqno, seqno);
+
+    } else {
+      for (; iter->Valid(); iter->Next()) {
+        Slice key = iter->key();
+        meta->largest.DecodeFrom(key);
+        builder->Add(key, iter->value());
+        SequenceNumber seqno = GetInternalKeySeqno(key);
+        meta->smallest_seqno = std::min(meta->smallest_seqno, seqno);
+        meta->largest_seqno = std::max(meta->largest_seqno, seqno);
       }
     }
 
     // Finish and check for builder errors
-    bool empty = builder->NumEntries() == 0;
-    s = c_iter.status();
-    if (!s.ok() || empty) {
-      builder->Abandon();
-    } else {
+    if (s.ok()) {
       s = builder->Finish();
-    }
-
-    if (s.ok() && !empty) {
-      meta->fd.file_size = builder->FileSize();
-      meta->marked_for_compaction = builder->NeedCompact();
-      assert(meta->fd.GetFileSize() > 0);
-      if (table_properties) {
-        *table_properties = builder->GetTableProperties();
+      if (s.ok()) {
+        meta->fd.file_size = builder->FileSize();
+        assert(meta->fd.GetFileSize() > 0);
       }
+    } else {
+      builder->Abandon();
     }
     delete builder;
 
     // Finish and check for file errors
-    if (s.ok() && !empty && !ioptions.disable_data_sync) {
-      StopWatch sw(env, ioptions.statistics, TABLE_SYNC_MICROS);
-      file_writer->Sync(ioptions.use_fsync);
+    if (s.ok() && !ioptions.disable_data_sync) {
+      if (ioptions.use_fsync) {
+        StopWatch sw(env, ioptions.statistics, TABLE_SYNC_MICROS);
+        s = file->Fsync();
+      } else {
+        StopWatch sw(env, ioptions.statistics, TABLE_SYNC_MICROS);
+        s = file->Sync();
+      }
     }
-    if (s.ok() && !empty) {
-      s = file_writer->Close();
+    if (s.ok()) {
+      s = file->Close();
     }
 
-    if (s.ok() && !empty) {
+    if (s.ok()) {
       // Verify that the table is usable
-      std::unique_ptr<InternalIterator> it(table_cache->NewIterator(
-          ReadOptions(), env_options, internal_comparator, meta->fd, nullptr,
-          (internal_stats == nullptr) ? nullptr
-                                      : internal_stats->GetFileReadHist(0),
-          false));
+      Iterator* it = table_cache->NewIterator(ReadOptions(), env_options,
+                                              internal_comparator, meta->fd);
       s = it->status();
-      if (s.ok() && paranoid_file_checks) {
-        for (it->SeekToFirst(); it->Valid(); it->Next()) {
-        }
-        s = it->status();
-      }
+      delete it;
     }
   }
 
@@ -164,7 +227,9 @@ Status BuildTable(
     s = iter->status();
   }
 
-  if (!s.ok() || meta->fd.GetFileSize() == 0) {
+  if (s.ok() && meta->fd.GetFileSize() > 0) {
+    // Keep it
+  } else {
     env->DeleteFile(fname);
   }
   return s;

db/builder.h

@@ -1,4 +1,4 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+//  Copyright (c) 2013, Facebook, Inc.  All rights reserved.
 //  This source code is licensed under the BSD-style license found in the
 //  LICENSE file in the root directory of this source tree. An additional grant
 //  of patent rights can be found in the PATENTS file in the same directory.
@@ -6,17 +6,12 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file. See the AUTHORS file for names of contributors.
 #pragma once
-#include <string>
-#include <utility>
-#include <vector>
-#include "db/table_properties_collector.h"
 #include "rocksdb/comparator.h"
 #include "rocksdb/env.h"
 #include "rocksdb/status.h"
 #include "rocksdb/types.h"
 #include "rocksdb/options.h"
 #include "rocksdb/immutable_options.h"
-#include "rocksdb/table_properties.h"
 
 namespace rocksdb {
 
@@ -29,38 +24,29 @@ class Iterator;
 class TableCache;
 class VersionEdit;
 class TableBuilder;
-class WritableFileWriter;
-class InternalStats;
-class InternalIterator;
+class WritableFile;
 
-TableBuilder* NewTableBuilder(
+extern TableBuilder* NewTableBuilder(
     const ImmutableCFOptions& options,
     const InternalKeyComparator& internal_comparator,
-    const std::vector<std::unique_ptr<IntTblPropCollectorFactory>>*
-        int_tbl_prop_collector_factories,
-    uint32_t column_family_id, WritableFileWriter* file,
-    const CompressionType compression_type,
-    const CompressionOptions& compression_opts,
-    const bool skip_filters = false);
+    WritableFile* file, const CompressionType compression_type,
+    const CompressionOptions& compression_opts);
 
 // Build a Table file from the contents of *iter.  The generated file
 // will be named according to number specified in meta. On success, the rest of
 // *meta will be filled with metadata about the generated table.
 // If no data is present in *iter, meta->file_size will be set to
 // zero, and no Table file will be produced.
-extern Status BuildTable(
-    const std::string& dbname, Env* env, const ImmutableCFOptions& options,
-    const EnvOptions& env_options, TableCache* table_cache,
-    InternalIterator* iter, FileMetaData* meta,
-    const InternalKeyComparator& internal_comparator,
-    const std::vector<std::unique_ptr<IntTblPropCollectorFactory>>*
-        int_tbl_prop_collector_factories,
-    uint32_t column_family_id, std::vector<SequenceNumber> snapshots,
-    SequenceNumber earliest_write_conflict_snapshot,
-    const CompressionType compression,
-    const CompressionOptions& compression_opts, bool paranoid_file_checks,
-    InternalStats* internal_stats,
-    const Env::IOPriority io_priority = Env::IO_HIGH,
-    TableProperties* table_properties = nullptr);
+extern Status BuildTable(const std::string& dbname, Env* env,
+                         const ImmutableCFOptions& options,
+                         const EnvOptions& env_options,
+                         TableCache* table_cache, Iterator* iter,
+                         FileMetaData* meta,
+                         const InternalKeyComparator& internal_comparator,
+                         const SequenceNumber newest_snapshot,
+                         const SequenceNumber earliest_seqno_in_memtable,
+                         const CompressionType compression,
+                         const CompressionOptions& compression_opts,
+                         const Env::IOPriority io_priority = Env::IO_HIGH);
 
 }  // namespace rocksdb

db/c_test.c

@@ -2,8 +2,6 @@
    Use of this source code is governed by a BSD-style license that can be
    found in the LICENSE file. See the AUTHORS file for names of contributors. */
 
-#ifndef ROCKSDB_LITE  // Lite does not support C API
-
 #include "rocksdb/c.h"
 
 #include <stddef.h>
@@ -11,34 +9,10 @@
 #include <stdlib.h>
 #include <string.h>
 #include <sys/types.h>
-#ifndef OS_WIN
-#  include <unistd.h>
-#endif
-#include <inttypes.h>
-
-// Can not use port/port.h macros as this is a c file
-#ifdef OS_WIN
-
-#include <Windows.h>
-
-# define snprintf _snprintf
-
-// Ok for uniqueness
-int geteuid() {
-
-  int result = 0;
-
-  result = ((int)GetCurrentProcessId() << 16);
-  result |= (int)GetCurrentThreadId();
-
-  return result;
-}
-
-#endif
+#include <unistd.h>
 
 const char* phase = "";
 static char dbname[200];
-static char dbbackupname[200];
 
 static void StartPhase(const char* name) {
   fprintf(stderr, "=== Test %s\n", name);
@@ -158,7 +132,7 @@ static void CmpDestroy(void* arg) { }
 
 static int CmpCompare(void* arg, const char* a, size_t alen,
                       const char* b, size_t blen) {
-  size_t n = (alen < blen) ? alen : blen;
+  int n = (alen < blen) ? alen : blen;
   int r = memcmp(a, b, n);
   if (r == 0) {
     if (alen < blen) r = -1;
@@ -251,6 +225,79 @@ static rocksdb_t* CheckCompaction(rocksdb_t* db, rocksdb_options_t* options,
   return db;
 }
 
+// Custom compaction filter V2.
+static void CompactionFilterV2Destroy(void* arg) { }
+static const char* CompactionFilterV2Name(void* arg) {
+  return "TestCompactionFilterV2";
+}
+static void CompactionFilterV2Filter(
+    void* arg, int level, size_t num_keys,
+    const char* const* keys_list, const size_t* keys_list_sizes,
+    const char* const* existing_values_list, const size_t* existing_values_list_sizes,
+    char** new_values_list, size_t* new_values_list_sizes,
+    unsigned char* to_delete_list) {
+  size_t i;
+  for (i = 0; i < num_keys; i++) {
+    // If any value is "gc", it's removed.
+    if (existing_values_list_sizes[i] == 2 && memcmp(existing_values_list[i], "gc", 2) == 0) {
+      to_delete_list[i] = 1;
+    } else if (existing_values_list_sizes[i] == 6 && memcmp(existing_values_list[i], "gc all", 6) == 0) {
+      // If any value is "gc all", all keys are removed.
+      size_t j;
+      for (j = 0; j < num_keys; j++) {
+        to_delete_list[j] = 1;
+      }
+      return;
+    } else if (existing_values_list_sizes[i] == 6 && memcmp(existing_values_list[i], "change", 6) == 0) {
+      // If value is "change", set changed value to "changed".
+      size_t len;
+      len = strlen("changed");
+      new_values_list[i] = malloc(len);
+      memcpy(new_values_list[i], "changed", len);
+      new_values_list_sizes[i] = len;
+    } else {
+      // Otherwise, no keys are removed.
+    }
+  }
+}
+
+// Custom prefix extractor for compaction filter V2 which extracts first 3 characters.
+static void CFV2PrefixExtractorDestroy(void* arg) { }
+static char* CFV2PrefixExtractorTransform(void* arg, const char* key, size_t length, size_t* dst_length) {
+  // Verify keys are maximum length 4; this verifies fix for a
+  // prior bug which was passing the RocksDB-encoded key with
+  // logical timestamp suffix instead of parsed user key.
+  if (length > 4) {
+    fprintf(stderr, "%s:%d: %s: key %s is not user key\n", __FILE__, __LINE__, phase, key);
+    abort();
+  }
+  *dst_length = length < 3 ? length : 3;
+  return (char*)key;
+}
+static unsigned char CFV2PrefixExtractorInDomain(void* state, const char* key, size_t length) {
+  return 1;
+}
+static unsigned char CFV2PrefixExtractorInRange(void* state, const char* key, size_t length) {
+  return 1;
+}
+static const char* CFV2PrefixExtractorName(void* state) {
+  return "TestCFV2PrefixExtractor";
+}
+
+// Custom compaction filter factory V2.
+static void CompactionFilterFactoryV2Destroy(void* arg) {
+  rocksdb_slicetransform_destroy((rocksdb_slicetransform_t*)arg);
+}
+static const char* CompactionFilterFactoryV2Name(void* arg) {
+  return "TestCompactionFilterFactoryV2";
+}
+static rocksdb_compactionfilterv2_t* CompactionFilterFactoryV2Create(
+    void* state, const rocksdb_compactionfiltercontext_t* context) {
+  return rocksdb_compactionfilterv2_create(state, CompactionFilterV2Destroy,
+                                           CompactionFilterV2Filter,
+                                           CompactionFilterV2Name);
+}
+
 // Custom merge operator
 static void MergeOperatorDestroy(void* arg) { }
 static const char* MergeOperatorName(void* arg) {
@@ -299,11 +346,6 @@ int main(int argc, char** argv) {
            GetTempDir(),
            ((int) geteuid()));
 
-  snprintf(dbbackupname, sizeof(dbbackupname),
-           "%s/rocksdb_c_test-%d-backup",
-           GetTempDir(),
-           ((int) geteuid()));
-
   StartPhase("create_objects");
   cmp = rocksdb_comparator_create(NULL, CmpDestroy, CmpCompare, CmpName);
   env = rocksdb_create_default_env();
@@ -339,7 +381,7 @@ int main(int argc, char** argv) {
   Free(&err);
 
   StartPhase("open_error");
-  rocksdb_open(options, dbname, &err);
+  db = rocksdb_open(options, dbname, &err);
   CheckCondition(err != NULL);
   Free(&err);
 
@@ -354,41 +396,6 @@ int main(int argc, char** argv) {
   CheckNoError(err);
   CheckGet(db, roptions, "foo", "hello");
 
-  StartPhase("backup_and_restore");
-  {
-    rocksdb_destroy_db(options, dbbackupname, &err);
-    CheckNoError(err);
-
-    rocksdb_backup_engine_t *be = rocksdb_backup_engine_open(options, dbbackupname, &err);
-    CheckNoError(err);
-
-    rocksdb_backup_engine_create_new_backup(be, db, &err);
-    CheckNoError(err);
-
-    rocksdb_delete(db, woptions, "foo", 3, &err);
-    CheckNoError(err);
-
-    rocksdb_close(db);
-
-    rocksdb_destroy_db(options, dbname, &err);
-    CheckNoError(err);
-
-    rocksdb_restore_options_t *restore_options = rocksdb_restore_options_create();
-    rocksdb_restore_options_set_keep_log_files(restore_options, 0);
-    rocksdb_backup_engine_restore_db_from_latest_backup(be, dbname, dbname, restore_options, &err);
-    CheckNoError(err);
-    rocksdb_restore_options_destroy(restore_options);
-
-    rocksdb_options_set_error_if_exists(options, 0);
-    db = rocksdb_open(options, dbname, &err);
-    CheckNoError(err);
-    rocksdb_options_set_error_if_exists(options, 1);
-
-    CheckGet(db, roptions, "foo", "hello");
-
-    rocksdb_backup_engine_close(be);
-  }
-
   StartPhase("compactall");
   rocksdb_compact_range(db, NULL, 0, NULL, 0);
   CheckGet(db, roptions, "foo", "hello");
@@ -416,24 +423,6 @@ int main(int argc, char** argv) {
     rocksdb_writebatch_destroy(wb);
   }
 
-  StartPhase("writebatch_vectors");
-  {
-    rocksdb_writebatch_t* wb = rocksdb_writebatch_create();
-    const char* k_list[2] = { "z", "ap" };
-    const size_t k_sizes[2] = { 1, 2 };
-    const char* v_list[3] = { "x", "y", "z" };
-    const size_t v_sizes[3] = { 1, 1, 1 };
-    rocksdb_writebatch_putv(wb, 2, k_list, k_sizes, 3, v_list, v_sizes);
-    rocksdb_write(db, woptions, wb, &err);
-    CheckNoError(err);
-    CheckGet(db, roptions, "zap", "xyz");
-    rocksdb_writebatch_delete(wb, "zap", 3);
-    rocksdb_write(db, woptions, wb, &err);
-    CheckNoError(err);
-    CheckGet(db, roptions, "zap", NULL);
-    rocksdb_writebatch_destroy(wb);
-  }
-
   StartPhase("writebatch_rep");
   {
     rocksdb_writebatch_t* wb1 = rocksdb_writebatch_create();
@@ -474,33 +463,6 @@ int main(int argc, char** argv) {
     rocksdb_iter_destroy(iter);
   }
 
-  StartPhase("multiget");
-  {
-    const char* keys[3] = { "box", "foo", "notfound" };
-    const size_t keys_sizes[3] = { 3, 3, 8 };
-    char* vals[3];
-    size_t vals_sizes[3];
-    char* errs[3];
-    rocksdb_multi_get(db, roptions, 3, keys, keys_sizes, vals, vals_sizes, errs);
-
-    int i;
-    for (i = 0; i < 3; i++) {
-      CheckEqual(NULL, errs[i], 0);
-      switch (i) {
-      case 0:
-        CheckEqual("c", vals[i], vals_sizes[i]);
-        break;
-      case 1:
-        CheckEqual("hello", vals[i], vals_sizes[i]);
-        break;
-      case 2:
-        CheckEqual(NULL, vals[i], vals_sizes[i]);
-        break;
-      }
-      Free(&vals[i]);
-    }
-  }
-
   StartPhase("approximate_sizes");
   {
     int i;
@@ -614,39 +576,81 @@ int main(int argc, char** argv) {
 
   StartPhase("compaction_filter");
   {
-    rocksdb_options_t* options_with_filter = rocksdb_options_create();
-    rocksdb_options_set_create_if_missing(options_with_filter, 1);
+    rocksdb_options_t* options = rocksdb_options_create();
+    rocksdb_options_set_create_if_missing(options, 1);
     rocksdb_compactionfilter_t* cfilter;
     cfilter = rocksdb_compactionfilter_create(NULL, CFilterDestroy,
                                               CFilterFilter, CFilterName);
     // Create new database
     rocksdb_close(db);
-    rocksdb_destroy_db(options_with_filter, dbname, &err);
-    rocksdb_options_set_compaction_filter(options_with_filter, cfilter);
-    db = CheckCompaction(db, options_with_filter, roptions, woptions);
+    rocksdb_destroy_db(options, dbname, &err);
+    rocksdb_options_set_compaction_filter(options, cfilter);
+    db = CheckCompaction(db, options, roptions, woptions);
 
-    rocksdb_options_set_compaction_filter(options_with_filter, NULL);
+    rocksdb_options_set_compaction_filter(options, NULL);
     rocksdb_compactionfilter_destroy(cfilter);
-    rocksdb_options_destroy(options_with_filter);
+    rocksdb_options_destroy(options);
   }
 
   StartPhase("compaction_filter_factory");
   {
-    rocksdb_options_t* options_with_filter_factory = rocksdb_options_create();
-    rocksdb_options_set_create_if_missing(options_with_filter_factory, 1);
+    rocksdb_options_t* options = rocksdb_options_create();
+    rocksdb_options_set_create_if_missing(options, 1);
     rocksdb_compactionfilterfactory_t* factory;
     factory = rocksdb_compactionfilterfactory_create(
         NULL, CFilterFactoryDestroy, CFilterCreate, CFilterFactoryName);
     // Create new database
     rocksdb_close(db);
-    rocksdb_destroy_db(options_with_filter_factory, dbname, &err);
-    rocksdb_options_set_compaction_filter_factory(options_with_filter_factory,
-                                                  factory);
-    db = CheckCompaction(db, options_with_filter_factory, roptions, woptions);
+    rocksdb_destroy_db(options, dbname, &err);
+    rocksdb_options_set_compaction_filter_factory(options, factory);
+    db = CheckCompaction(db, options, roptions, woptions);
 
-    rocksdb_options_set_compaction_filter_factory(
-        options_with_filter_factory, NULL);
-    rocksdb_options_destroy(options_with_filter_factory);
+    rocksdb_options_set_compaction_filter_factory(options, NULL);
+    rocksdb_options_destroy(options);
+  }
+
+  StartPhase("compaction_filter_v2");
+  {
+    rocksdb_compactionfilterfactoryv2_t* factory;
+    rocksdb_slicetransform_t* prefix_extractor;
+    prefix_extractor = rocksdb_slicetransform_create(
+        NULL, CFV2PrefixExtractorDestroy, CFV2PrefixExtractorTransform,
+        CFV2PrefixExtractorInDomain, CFV2PrefixExtractorInRange,
+        CFV2PrefixExtractorName);
+    factory = rocksdb_compactionfilterfactoryv2_create(
+        prefix_extractor, prefix_extractor, CompactionFilterFactoryV2Destroy,
+        CompactionFilterFactoryV2Create, CompactionFilterFactoryV2Name);
+    // Create new database
+    rocksdb_close(db);
+    rocksdb_destroy_db(options, dbname, &err);
+    rocksdb_options_set_compaction_filter_factory_v2(options, factory);
+    db = rocksdb_open(options, dbname, &err);
+    CheckNoError(err);
+    // Only foo2 is GC'd, foo3 is changed.
+    rocksdb_put(db, woptions, "foo1", 4, "no gc", 5, &err);
+    CheckNoError(err);
+    rocksdb_put(db, woptions, "foo2", 4, "gc", 2, &err);
+    CheckNoError(err);
+    rocksdb_put(db, woptions, "foo3", 4, "change", 6, &err);
+    CheckNoError(err);
+    // All bars are GC'd.
+    rocksdb_put(db, woptions, "bar1", 4, "no gc", 5, &err);
+    CheckNoError(err);
+    rocksdb_put(db, woptions, "bar2", 4, "gc all", 6, &err);
+    CheckNoError(err);
+    rocksdb_put(db, woptions, "bar3", 4, "no gc", 5, &err);
+    CheckNoError(err);
+    // Compact the DB to garbage collect.
+    rocksdb_compact_range(db, NULL, 0, NULL, 0);
+
+    // Verify foo entries.
+    CheckGet(db, roptions, "foo1", "no gc");
+    CheckGet(db, roptions, "foo2", NULL);
+    CheckGet(db, roptions, "foo3", "changed");
+    // Verify bar entries were all deleted.
+    CheckGet(db, roptions, "bar1", NULL);
+    CheckGet(db, roptions, "bar2", NULL);
+    CheckGet(db, roptions, "bar3", NULL);
   }
 
   StartPhase("merge_operator");
@@ -730,36 +734,12 @@ int main(int argc, char** argv) {
     CheckGetCF(db, roptions, handles[1], "box", "c");
     rocksdb_writebatch_destroy(wb);
 
-    const char* keys[3] = { "box", "box", "barfooxx" };
-    const rocksdb_column_family_handle_t* get_handles[3] = { handles[0], handles[1], handles[1] };
-    const size_t keys_sizes[3] = { 3, 3, 8 };
-    char* vals[3];
-    size_t vals_sizes[3];
-    char* errs[3];
-    rocksdb_multi_get_cf(db, roptions, get_handles, 3, keys, keys_sizes, vals, vals_sizes, errs);
-
-    int i;
-    for (i = 0; i < 3; i++) {
-      CheckEqual(NULL, errs[i], 0);
-      switch (i) {
-      case 0:
-        CheckEqual(NULL, vals[i], vals_sizes[i]); // wrong cf
-        break;
-      case 1:
-        CheckEqual("c", vals[i], vals_sizes[i]); // bingo
-        break;
-      case 2:
-        CheckEqual(NULL, vals[i], vals_sizes[i]); // normal not found
-        break;
-      }
-      Free(&vals[i]);
-    }
-
     rocksdb_iterator_t* iter = rocksdb_create_iterator_cf(db, roptions, handles[1]);
     CheckCondition(!rocksdb_iter_valid(iter));
     rocksdb_iter_seek_to_first(iter);
     CheckCondition(rocksdb_iter_valid(iter));
 
+    int i;
     for (i = 0; rocksdb_iter_valid(iter) != 0; rocksdb_iter_next(iter)) {
       i++;
     }
@@ -819,87 +799,8 @@ int main(int argc, char** argv) {
     rocksdb_iter_get_error(iter, &err);
     CheckNoError(err);
     rocksdb_iter_destroy(iter);
-
-    rocksdb_close(db);
-    rocksdb_destroy_db(options, dbname, &err);
   }
 
-  StartPhase("cuckoo_options");
-  {
-    rocksdb_cuckoo_table_options_t* cuckoo_options;
-    cuckoo_options = rocksdb_cuckoo_options_create();
-    rocksdb_cuckoo_options_set_hash_ratio(cuckoo_options, 0.5);
-    rocksdb_cuckoo_options_set_max_search_depth(cuckoo_options, 200);
-    rocksdb_cuckoo_options_set_cuckoo_block_size(cuckoo_options, 10);
-    rocksdb_cuckoo_options_set_identity_as_first_hash(cuckoo_options, 1);
-    rocksdb_cuckoo_options_set_use_module_hash(cuckoo_options, 0);
-    rocksdb_options_set_cuckoo_table_factory(options, cuckoo_options);
-
-    db = rocksdb_open(options, dbname, &err);
-    CheckNoError(err);
-
-    rocksdb_cuckoo_options_destroy(cuckoo_options);
-  }
-
-  StartPhase("iterate_upper_bound");
-  {
-    // Create new empty database
-    rocksdb_close(db);
-    rocksdb_destroy_db(options, dbname, &err);
-    CheckNoError(err);
-
-    rocksdb_options_set_prefix_extractor(options, NULL);
-    db = rocksdb_open(options, dbname, &err);
-    CheckNoError(err);
-
-    rocksdb_put(db, woptions, "a",    1, "0",    1, &err); CheckNoError(err);
-    rocksdb_put(db, woptions, "foo",  3, "bar",  3, &err); CheckNoError(err);
-    rocksdb_put(db, woptions, "foo1", 4, "bar1", 4, &err); CheckNoError(err);
-    rocksdb_put(db, woptions, "g1",   2, "0",    1, &err); CheckNoError(err);
-
-    // testing basic case with no iterate_upper_bound and no prefix_extractor
-    {
-       rocksdb_readoptions_set_iterate_upper_bound(roptions, NULL, 0);
-       rocksdb_iterator_t* iter = rocksdb_create_iterator(db, roptions);
-
-       rocksdb_iter_seek(iter, "foo", 3);
-       CheckCondition(rocksdb_iter_valid(iter));
-       CheckIter(iter, "foo", "bar");
-
-       rocksdb_iter_next(iter);
-       CheckCondition(rocksdb_iter_valid(iter));
-       CheckIter(iter, "foo1", "bar1");
-
-       rocksdb_iter_next(iter);
-       CheckCondition(rocksdb_iter_valid(iter));
-       CheckIter(iter, "g1", "0");
-
-       rocksdb_iter_destroy(iter);
-    }
-
-    // testing iterate_upper_bound and forward iterator
-    // to make sure it stops at bound
-    {
-       // iterate_upper_bound points beyond the last expected entry
-       rocksdb_readoptions_set_iterate_upper_bound(roptions, "foo2", 4);
-
-       rocksdb_iterator_t* iter = rocksdb_create_iterator(db, roptions);
-
-       rocksdb_iter_seek(iter, "foo", 3);
-       CheckCondition(rocksdb_iter_valid(iter));
-       CheckIter(iter, "foo", "bar");
-
-       rocksdb_iter_next(iter);
-       CheckCondition(rocksdb_iter_valid(iter));
-       CheckIter(iter, "foo1", "bar1");
-
-       rocksdb_iter_next(iter);
-       // should stop here...
-       CheckCondition(!rocksdb_iter_valid(iter));
-
-       rocksdb_iter_destroy(iter);
-    }
-  }
 
   StartPhase("cleanup");
   rocksdb_close(db);
@@ -914,13 +815,3 @@ int main(int argc, char** argv) {
   fprintf(stderr, "PASS\n");
   return 0;
 }
-
-#else
-#include <stdio.h>
-
-int main() {
-  fprintf(stderr, "SKIPPED\n");
-  return 0;
-}
-
-#endif  // !ROCKSDB_LITE

db/column_family.cc

@@ -1,4 +1,4 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+//  Copyright (c) 2013, Facebook, Inc.  All rights reserved.
 //  This source code is licensed under the BSD-style license found in the
 //  LICENSE file in the root directory of this source tree. An additional grant
 //  of patent rights can be found in the PATENTS file in the same directory.
@@ -19,26 +19,51 @@
 #include <algorithm>
 #include <limits>
 
-#include "db/compaction_picker.h"
 #include "db/db_impl.h"
-#include "db/internal_stats.h"
-#include "db/job_context.h"
-#include "db/table_properties_collector.h"
 #include "db/version_set.h"
+#include "db/internal_stats.h"
+#include "db/compaction_picker.h"
+#include "db/table_properties_collector.h"
 #include "db/write_controller.h"
-#include "db/writebuffer.h"
-#include "memtable/hash_skiplist_rep.h"
 #include "util/autovector.h"
-#include "util/compression.h"
+#include "util/hash_skiplist_rep.h"
 #include "util/options_helper.h"
-#include "util/thread_status_util.h"
-#include "util/xfunc.h"
 
 namespace rocksdb {
 
-ColumnFamilyHandleImpl::ColumnFamilyHandleImpl(
-    ColumnFamilyData* column_family_data, DBImpl* db, InstrumentedMutex* mutex)
-    : cfd_(column_family_data), db_(db), mutex_(mutex) {
+namespace {
+// This function computes the amount of time in microseconds by which a write
+// should be delayed based on the number of level-0 files according to the
+// following formula:
+// if n < bottom, return 0;
+// if n >= top, return 1000;
+// otherwise, let r = (n - bottom) /
+//                    (top - bottom)
+//  and return r^2 * 1000.
+// The goal of this formula is to gradually increase the rate at which writes
+// are slowed. We also tried linear delay (r * 1000), but it seemed to do
+// slightly worse. There is no other particular reason for choosing quadratic.
+uint64_t SlowdownAmount(int n, double bottom, double top) {
+  uint64_t delay;
+  if (n >= top) {
+    delay = 1000;
+  } else if (n < bottom) {
+    delay = 0;
+  } else {
+    // If we are here, we know that:
+    //   level0_start_slowdown <= n < level0_slowdown
+    // since the previous two conditions are false.
+    double how_much = static_cast<double>(n - bottom) / (top - bottom);
+    delay = std::max(how_much * how_much * 1000, 100.0);
+  }
+  assert(delay <= 1000);
+  return delay;
+}
+}  // namespace
+
+ColumnFamilyHandleImpl::ColumnFamilyHandleImpl(ColumnFamilyData* cfd,
+                                               DBImpl* db, port::Mutex* mutex)
+    : cfd_(cfd), db_(db), mutex_(mutex) {
   if (cfd_ != nullptr) {
     cfd_->Ref();
   }
@@ -46,104 +71,26 @@ ColumnFamilyHandleImpl::ColumnFamilyHandleImpl(
 
 ColumnFamilyHandleImpl::~ColumnFamilyHandleImpl() {
   if (cfd_ != nullptr) {
-    // Job id == 0 means that this is not our background process, but rather
-    // user thread
-    JobContext job_context(0);
+    DBImpl::DeletionState deletion_state;
     mutex_->Lock();
     if (cfd_->Unref()) {
       delete cfd_;
     }
-    db_->FindObsoleteFiles(&job_context, false, true);
+    db_->FindObsoleteFiles(deletion_state, false, true);
     mutex_->Unlock();
-    if (job_context.HaveSomethingToDelete()) {
-      db_->PurgeObsoleteFiles(job_context);
+    if (deletion_state.HaveSomethingToDelete()) {
+      db_->PurgeObsoleteFiles(deletion_state);
     }
-    job_context.Clean();
   }
 }
 
 uint32_t ColumnFamilyHandleImpl::GetID() const { return cfd()->GetID(); }
 
-const std::string& ColumnFamilyHandleImpl::GetName() const {
-  return cfd()->GetName();
-}
-
-Status ColumnFamilyHandleImpl::GetDescriptor(ColumnFamilyDescriptor* desc) {
-#ifndef ROCKSDB_LITE
-  // accessing mutable cf-options requires db mutex.
-  InstrumentedMutexLock l(mutex_);
-  *desc = ColumnFamilyDescriptor(
-      cfd()->GetName(),
-      BuildColumnFamilyOptions(*cfd()->options(),
-                               *cfd()->GetLatestMutableCFOptions()));
-  return Status::OK();
-#else
-  return Status::NotSupported();
-#endif  // !ROCKSDB_LITE
-}
-
 const Comparator* ColumnFamilyHandleImpl::user_comparator() const {
   return cfd()->user_comparator();
 }
 
-void GetIntTblPropCollectorFactory(
-    const ColumnFamilyOptions& cf_options,
-    std::vector<std::unique_ptr<IntTblPropCollectorFactory>>*
-        int_tbl_prop_collector_factories) {
-  auto& collector_factories = cf_options.table_properties_collector_factories;
-  for (size_t i = 0; i < cf_options.table_properties_collector_factories.size();
-       ++i) {
-    assert(collector_factories[i]);
-    int_tbl_prop_collector_factories->emplace_back(
-        new UserKeyTablePropertiesCollectorFactory(collector_factories[i]));
-  }
-  // Add collector to collect internal key statistics
-  int_tbl_prop_collector_factories->emplace_back(
-      new InternalKeyPropertiesCollectorFactory);
-}
-
-Status CheckCompressionSupported(const ColumnFamilyOptions& cf_options) {
-  if (!cf_options.compression_per_level.empty()) {
-    for (size_t level = 0; level < cf_options.compression_per_level.size();
-         ++level) {
-      if (!CompressionTypeSupported(cf_options.compression_per_level[level])) {
-        return Status::InvalidArgument(
-            "Compression type " +
-            CompressionTypeToString(cf_options.compression_per_level[level]) +
-            " is not linked with the binary.");
-      }
-    }
-  } else {
-    if (!CompressionTypeSupported(cf_options.compression)) {
-      return Status::InvalidArgument(
-          "Compression type " +
-          CompressionTypeToString(cf_options.compression) +
-          " is not linked with the binary.");
-    }
-  }
-  return Status::OK();
-}
-
-Status CheckConcurrentWritesSupported(const ColumnFamilyOptions& cf_options) {
-  if (cf_options.inplace_update_support) {
-    return Status::InvalidArgument(
-        "In-place memtable updates (inplace_update_support) is not compatible "
-        "with concurrent writes (allow_concurrent_memtable_write)");
-  }
-  if (cf_options.filter_deletes) {
-    return Status::InvalidArgument(
-        "Delete filtering (filter_deletes) is not compatible with concurrent "
-        "memtable writes (allow_concurrent_memtable_writes)");
-  }
-  if (!cf_options.memtable_factory->IsInsertConcurrentlySupported()) {
-    return Status::InvalidArgument(
-        "Memtable doesn't concurrent writes (allow_concurrent_memtable_write)");
-  }
-  return Status::OK();
-}
-
-ColumnFamilyOptions SanitizeOptions(const DBOptions& db_options,
-                                    const InternalKeyComparator* icmp,
+ColumnFamilyOptions SanitizeOptions(const InternalKeyComparator* icmp,
                                     const ColumnFamilyOptions& src) {
   ColumnFamilyOptions result = src;
   result.comparator = icmp;
@@ -157,38 +104,21 @@ ColumnFamilyOptions SanitizeOptions(const DBOptions& db_options,
   // if user sets arena_block_size, we trust user to use this value. Otherwise,
   // calculate a proper value from writer_buffer_size;
   if (result.arena_block_size <= 0) {
-    result.arena_block_size = result.write_buffer_size / 8;
-
-    // Align up to 4k
-    const size_t align = 4 * 1024;
-    result.arena_block_size =
-        ((result.arena_block_size + align - 1) / align) * align;
+    result.arena_block_size = result.write_buffer_size / 10;
   }
   result.min_write_buffer_number_to_merge =
       std::min(result.min_write_buffer_number_to_merge,
                result.max_write_buffer_number - 1);
-  if (result.num_levels < 1) {
-    result.num_levels = 1;
+  result.compression_per_level = src.compression_per_level;
+  if (result.max_mem_compaction_level >= result.num_levels) {
+    result.max_mem_compaction_level = result.num_levels - 1;
   }
-  if (result.compaction_style == kCompactionStyleLevel &&
-      result.num_levels < 2) {
-    result.num_levels = 2;
+  if (result.soft_rate_limit > result.hard_rate_limit) {
+    result.soft_rate_limit = result.hard_rate_limit;
   }
   if (result.max_write_buffer_number < 2) {
     result.max_write_buffer_number = 2;
   }
-  if (result.max_write_buffer_number_to_maintain < 0) {
-    result.max_write_buffer_number_to_maintain = result.max_write_buffer_number;
-  }
-  XFUNC_TEST("memtablelist_history", "transaction_xftest_SanitizeOptions",
-             xf_transaction_set_memtable_history1,
-             xf_transaction_set_memtable_history,
-             &result.max_write_buffer_number_to_maintain);
-  XFUNC_TEST("memtablelist_history_clear", "transaction_xftest_SanitizeOptions",
-             xf_transaction_clear_memtable_history1,
-             xf_transaction_clear_memtable_history,
-             &result.max_write_buffer_number_to_maintain);
-
   if (!result.prefix_extractor) {
     assert(result.memtable_factory);
     Slice name = result.memtable_factory->Name();
@@ -198,6 +128,22 @@ ColumnFamilyOptions SanitizeOptions(const DBOptions& db_options,
     }
   }
 
+  // -- Sanitize the table properties collector
+  // All user defined properties collectors will be wrapped by
+  // UserKeyTablePropertiesCollector since for them they only have the
+  // knowledge of the user keys; internal keys are invisible to them.
+  auto& collector_factories = result.table_properties_collector_factories;
+  for (size_t i = 0; i < result.table_properties_collector_factories.size();
+       ++i) {
+    assert(collector_factories[i]);
+    collector_factories[i] =
+        std::make_shared<UserKeyTablePropertiesCollectorFactory>(
+            collector_factories[i]);
+  }
+  // Add collector to collect internal key statistics
+  collector_factories.push_back(
+      std::make_shared<InternalKeyPropertiesCollectorFactory>());
+
   if (result.compaction_style == kCompactionStyleFIFO) {
     result.num_levels = 1;
     // since we delete level0 files in FIFO compaction when there are too many
@@ -207,64 +153,6 @@ ColumnFamilyOptions SanitizeOptions(const DBOptions& db_options,
     result.level0_stop_writes_trigger = std::numeric_limits<int>::max();
   }
 
-  if (result.level0_file_num_compaction_trigger == 0) {
-    Warn(db_options.info_log.get(),
-         "level0_file_num_compaction_trigger cannot be 0");
-    result.level0_file_num_compaction_trigger = 1;
-  }
-
-  if (result.level0_stop_writes_trigger <
-          result.level0_slowdown_writes_trigger ||
-      result.level0_slowdown_writes_trigger <
-          result.level0_file_num_compaction_trigger) {
-    Warn(db_options.info_log.get(),
-         "This condition must be satisfied: "
-         "level0_stop_writes_trigger(%d) >= "
-         "level0_slowdown_writes_trigger(%d) >= "
-         "level0_file_num_compaction_trigger(%d)",
-         result.level0_stop_writes_trigger,
-         result.level0_slowdown_writes_trigger,
-         result.level0_file_num_compaction_trigger);
-    if (result.level0_slowdown_writes_trigger <
-        result.level0_file_num_compaction_trigger) {
-      result.level0_slowdown_writes_trigger =
-          result.level0_file_num_compaction_trigger;
-    }
-    if (result.level0_stop_writes_trigger <
-        result.level0_slowdown_writes_trigger) {
-      result.level0_stop_writes_trigger = result.level0_slowdown_writes_trigger;
-    }
-    Warn(db_options.info_log.get(),
-         "Adjust the value to "
-         "level0_stop_writes_trigger(%d)"
-         "level0_slowdown_writes_trigger(%d)"
-         "level0_file_num_compaction_trigger(%d)",
-         result.level0_stop_writes_trigger,
-         result.level0_slowdown_writes_trigger,
-         result.level0_file_num_compaction_trigger);
-  }
-
-  if (result.soft_pending_compaction_bytes_limit == 0) {
-    result.soft_pending_compaction_bytes_limit =
-        result.hard_pending_compaction_bytes_limit;
-  } else if (result.hard_pending_compaction_bytes_limit > 0 &&
-             result.soft_pending_compaction_bytes_limit >
-                 result.hard_pending_compaction_bytes_limit) {
-    result.soft_pending_compaction_bytes_limit =
-        result.hard_pending_compaction_bytes_limit;
-  }
-
-  if (result.level_compaction_dynamic_level_bytes) {
-    if (result.compaction_style != kCompactionStyleLevel ||
-        db_options.db_paths.size() > 1U) {
-      // 1. level_compaction_dynamic_level_bytes only makes sense for
-      //    level-based compaction.
-      // 2. we don't yet know how to make both of this feature and multiple
-      //    DB path work.
-      result.level_compaction_dynamic_level_bytes = false;
-    }
-  }
-
   return result;
 }
 
@@ -285,7 +173,7 @@ SuperVersion* SuperVersion::Ref() {
 
 bool SuperVersion::Unref() {
   // fetch_sub returns the previous value of ref
-  uint32_t previous_refs = refs.fetch_sub(1);
+  uint32_t previous_refs = refs.fetch_sub(1, std::memory_order_relaxed);
   assert(previous_refs > 0);
   return previous_refs == 1;
 }
@@ -295,9 +183,6 @@ void SuperVersion::Cleanup() {
   imm->Unref(&to_delete);
   MemTable* m = mem->Unref();
   if (m != nullptr) {
-    auto* memory_usage = current->cfd()->imm()->current_memory_usage();
-    assert(*memory_usage >= m->ApproximateMemoryUsage());
-    *memory_usage -= m->ApproximateMemoryUsage();
     to_delete.push_back(m);
   }
   current->Unref();
@@ -330,81 +215,54 @@ void SuperVersionUnrefHandle(void* ptr) {
 }
 }  // anonymous namespace
 
-ColumnFamilyData::ColumnFamilyData(
-    uint32_t id, const std::string& name, Version* _dummy_versions,
-    Cache* _table_cache, WriteBuffer* write_buffer,
-    const ColumnFamilyOptions& cf_options, const DBOptions* db_options,
-    const EnvOptions& env_options, ColumnFamilySet* column_family_set)
+ColumnFamilyData::ColumnFamilyData(uint32_t id, const std::string& name,
+                                   Version* dummy_versions, Cache* table_cache,
+                                   const ColumnFamilyOptions& cf_options,
+                                   const DBOptions* db_options,
+                                   const EnvOptions& env_options,
+                                   ColumnFamilySet* column_family_set)
     : id_(id),
       name_(name),
-      dummy_versions_(_dummy_versions),
+      dummy_versions_(dummy_versions),
       current_(nullptr),
       refs_(0),
       dropped_(false),
       internal_comparator_(cf_options.comparator),
-      options_(*db_options,
-               SanitizeOptions(*db_options, &internal_comparator_, cf_options)),
+      options_(*db_options, SanitizeOptions(&internal_comparator_, cf_options)),
       ioptions_(options_),
       mutable_cf_options_(options_, ioptions_),
-      write_buffer_(write_buffer),
       mem_(nullptr),
-      imm_(options_.min_write_buffer_number_to_merge,
-           options_.max_write_buffer_number_to_maintain),
+      imm_(options_.min_write_buffer_number_to_merge),
       super_version_(nullptr),
       super_version_number_(0),
       local_sv_(new ThreadLocalPtr(&SuperVersionUnrefHandle)),
       next_(nullptr),
       prev_(nullptr),
       log_number_(0),
-      column_family_set_(column_family_set),
-      pending_flush_(false),
-      pending_compaction_(false),
-      prev_compaction_needed_bytes_(0) {
+      column_family_set_(column_family_set) {
   Ref();
 
-  // Convert user defined table properties collector factories to internal ones.
-  GetIntTblPropCollectorFactory(options_, &int_tbl_prop_collector_factories_);
-
-  // if _dummy_versions is nullptr, then this is a dummy column family.
-  if (_dummy_versions != nullptr) {
+  // if dummy_versions is nullptr, then this is a dummy column family.
+  if (dummy_versions != nullptr) {
     internal_stats_.reset(
         new InternalStats(ioptions_.num_levels, db_options->env, this));
-    table_cache_.reset(new TableCache(ioptions_, env_options, _table_cache));
-    if (ioptions_.compaction_style == kCompactionStyleLevel) {
-      compaction_picker_.reset(
-          new LevelCompactionPicker(ioptions_, &internal_comparator_));
-#ifndef ROCKSDB_LITE
-    } else if (ioptions_.compaction_style == kCompactionStyleUniversal) {
+    table_cache_.reset(new TableCache(ioptions_, env_options, table_cache));
+    if (ioptions_.compaction_style == kCompactionStyleUniversal) {
       compaction_picker_.reset(
           new UniversalCompactionPicker(ioptions_, &internal_comparator_));
-    } else if (ioptions_.compaction_style == kCompactionStyleFIFO) {
-      compaction_picker_.reset(
-          new FIFOCompactionPicker(ioptions_, &internal_comparator_));
-    } else if (ioptions_.compaction_style == kCompactionStyleNone) {
-      compaction_picker_.reset(new NullCompactionPicker(
-          ioptions_, &internal_comparator_));
-      Log(InfoLogLevel::WARN_LEVEL, ioptions_.info_log,
-          "Column family %s does not use any background compaction. "
-          "Compactions can only be done via CompactFiles\n",
-          GetName().c_str());
-#endif  // !ROCKSDB_LITE
-    } else {
-      Log(InfoLogLevel::ERROR_LEVEL, ioptions_.info_log,
-          "Unable to recognize the specified compaction style %d. "
-          "Column family %s will use kCompactionStyleLevel.\n",
-          ioptions_.compaction_style, GetName().c_str());
+    } else if (ioptions_.compaction_style == kCompactionStyleLevel) {
       compaction_picker_.reset(
           new LevelCompactionPicker(ioptions_, &internal_comparator_));
+    } else {
+      assert(ioptions_.compaction_style == kCompactionStyleFIFO);
+      compaction_picker_.reset(
+          new FIFOCompactionPicker(ioptions_, &internal_comparator_));
     }
 
-    if (column_family_set_->NumberOfColumnFamilies() < 10) {
-      Log(InfoLogLevel::INFO_LEVEL, ioptions_.info_log,
-          "--------------- Options for column family [%s]:\n", name.c_str());
-      options_.DumpCFOptions(ioptions_.info_log);
-    } else {
-      Log(InfoLogLevel::INFO_LEVEL, ioptions_.info_log,
-          "\t(skipping printing options)\n");
-    }
+    Log(ioptions_.info_log, "Options for column family \"%s\":\n",
+        name.c_str());
+    const ColumnFamilyOptions* cf_options = &options_;
+    cf_options->Dump(ioptions_.info_log);
   }
 
   RecalculateWriteStallConditions(mutable_cf_options_);
@@ -412,17 +270,16 @@ ColumnFamilyData::ColumnFamilyData(
 
 // DB mutex held
 ColumnFamilyData::~ColumnFamilyData() {
-  assert(refs_.load(std::memory_order_relaxed) == 0);
+  assert(refs_ == 0);
   // remove from linked list
   auto prev = prev_;
   auto next = next_;
   prev->next_ = next;
   next->prev_ = prev;
 
-  if (!dropped_ && column_family_set_ != nullptr) {
-    // If it's dropped, it's already removed from column family set
-    // If column_family_set_ == nullptr, this is dummy CFD and not in
-    // ColumnFamilySet
+  // it's nullptr for dummy CFD
+  if (column_family_set_ != nullptr) {
+    // remove from column_family_set
     column_family_set_->RemoveColumnFamily(this);
   }
 
@@ -430,11 +287,6 @@ ColumnFamilyData::~ColumnFamilyData() {
     current_->Unref();
   }
 
-  // It would be wrong if this ColumnFamilyData is in flush_queue_ or
-  // compaction_queue_ and we destroyed it
-  assert(!pending_flush_);
-  assert(!pending_compaction_);
-
   if (super_version_ != nullptr) {
     // Release SuperVersion reference kept in ThreadLocalPtr.
     // This must be done outside of mutex_ since unref handler can lock mutex.
@@ -452,9 +304,8 @@ ColumnFamilyData::~ColumnFamilyData() {
 
   if (dummy_versions_ != nullptr) {
     // List must be empty
-    assert(dummy_versions_->TEST_Next() == dummy_versions_);
-    bool deleted __attribute__((unused)) = dummy_versions_->Unref();
-    assert(deleted);
+    assert(dummy_versions_->next_ == dummy_versions_);
+    delete dummy_versions_;
   }
 
   if (mem_ != nullptr) {
@@ -467,194 +318,65 @@ ColumnFamilyData::~ColumnFamilyData() {
   }
 }
 
-void ColumnFamilyData::SetDropped() {
-  // can't drop default CF
-  assert(id_ != 0);
-  dropped_ = true;
-  write_controller_token_.reset();
-
-  // remove from column_family_set
-  column_family_set_->RemoveColumnFamily(this);
-}
-
-const double kSlowdownRatio = 1.2;
-
-namespace {
-std::unique_ptr<WriteControllerToken> SetupDelay(
-    uint64_t max_write_rate, WriteController* write_controller,
-    uint64_t compaction_needed_bytes, uint64_t prev_compaction_neeed_bytes,
-    bool auto_comapctions_disabled) {
-  const uint64_t kMinWriteRate = 1024u;  // Minimum write rate 1KB/s.
-
-  uint64_t write_rate = write_controller->delayed_write_rate();
-
-  if (auto_comapctions_disabled) {
-    // When auto compaction is disabled, always use the value user gave.
-    write_rate = max_write_rate;
-  } else if (write_controller->NeedsDelay() && max_write_rate > kMinWriteRate) {
-    // If user gives rate less than kMinWriteRate, don't adjust it.
-    //
-    // If already delayed, need to adjust based on previous compaction debt.
-    // When there are two or more column families require delay, we always
-    // increase or reduce write rate based on information for one single
-    // column family. It is likely to be OK but we can improve if there is a
-    // problem.
-    // Ignore compaction_needed_bytes = 0 case because compaction_needed_bytes
-    // is only available in level-based compaction
-    //
-    // If the compaction debt stays the same as previously, we also further slow
-    // down. It usually means a mem table is full. It's mainly for the case
-    // where both of flush and compaction are much slower than the speed we
-    // insert to mem tables, so we need to actively slow down before we get
-    // feedback signal from compaction and flushes to avoid the full stop
-    // because of hitting the max write buffer number.
-    if (prev_compaction_neeed_bytes > 0 &&
-        prev_compaction_neeed_bytes <= compaction_needed_bytes) {
-      write_rate = static_cast<uint64_t>(static_cast<double>(write_rate) /
-                                         kSlowdownRatio);
-      if (write_rate < kMinWriteRate) {
-        write_rate = kMinWriteRate;
-      }
-    } else if (prev_compaction_neeed_bytes > compaction_needed_bytes) {
-      // We are speeding up by ratio of kSlowdownRatio when we have paid
-      // compaction debt. But we'll never speed up to faster than the write rate
-      // given by users.
-      write_rate = static_cast<uint64_t>(static_cast<double>(write_rate) *
-                                         kSlowdownRatio);
-      if (write_rate > max_write_rate) {
-        write_rate = max_write_rate;
-      }
-    }
-  }
-  return write_controller->GetDelayToken(write_rate);
-}
-
-int GetL0ThresholdSpeedupCompaction(int level0_file_num_compaction_trigger,
-                                    int level0_slowdown_writes_trigger) {
-  // SanitizeOptions() ensures it.
-  assert(level0_file_num_compaction_trigger <= level0_slowdown_writes_trigger);
-
-  // 1/4 of the way between L0 compaction trigger threshold and slowdown
-  // condition.
-  // Or twice as compaction trigger, if it is smaller.
-  return std::min(level0_file_num_compaction_trigger * 2,
-                  level0_file_num_compaction_trigger +
-                      (level0_slowdown_writes_trigger -
-                       level0_file_num_compaction_trigger) /
-                          4);
-}
-}  // namespace
-
 void ColumnFamilyData::RecalculateWriteStallConditions(
       const MutableCFOptions& mutable_cf_options) {
   if (current_ != nullptr) {
-    auto* vstorage = current_->storage_info();
-    auto write_controller = column_family_set_->write_controller_;
-    uint64_t compaction_needed_bytes =
-        vstorage->estimated_compaction_needed_bytes();
+    const double score = current_->MaxCompactionScore();
+    const int max_level = current_->MaxCompactionScoreLevel();
 
-    if (imm()->NumNotFlushed() >= mutable_cf_options.max_write_buffer_number) {
+    auto write_controller = column_family_set_->write_controller_;
+
+    if (imm()->size() == options_.max_write_buffer_number) {
       write_controller_token_ = write_controller->GetStopToken();
       internal_stats_->AddCFStats(InternalStats::MEMTABLE_COMPACTION, 1);
-      Log(InfoLogLevel::WARN_LEVEL, ioptions_.info_log,
+      Log(ioptions_.info_log,
           "[%s] Stopping writes because we have %d immutable memtables "
-          "(waiting for flush), max_write_buffer_number is set to %d",
-          name_.c_str(), imm()->NumNotFlushed(),
-          mutable_cf_options.max_write_buffer_number);
-    } else if (vstorage->l0_delay_trigger_count() >=
+          "(waiting for flush)",
+          name_.c_str(), imm()->size());
+    } else if (current_->NumLevelFiles(0) >=
                mutable_cf_options.level0_stop_writes_trigger) {
       write_controller_token_ = write_controller->GetStopToken();
-      internal_stats_->AddCFStats(InternalStats::LEVEL0_NUM_FILES_TOTAL, 1);
-      if (compaction_picker_->IsLevel0CompactionInProgress()) {
-        internal_stats_->AddCFStats(
-            InternalStats::LEVEL0_NUM_FILES_WITH_COMPACTION, 1);
-      }
-      Log(InfoLogLevel::WARN_LEVEL, ioptions_.info_log,
+      internal_stats_->AddCFStats(InternalStats::LEVEL0_NUM_FILES, 1);
+      Log(ioptions_.info_log,
           "[%s] Stopping writes because we have %d level-0 files",
-          name_.c_str(), vstorage->l0_delay_trigger_count());
-    } else if (mutable_cf_options.hard_pending_compaction_bytes_limit > 0 &&
-               compaction_needed_bytes >=
-                   mutable_cf_options.hard_pending_compaction_bytes_limit) {
-      write_controller_token_ = write_controller->GetStopToken();
-      internal_stats_->AddCFStats(
-          InternalStats::HARD_PENDING_COMPACTION_BYTES_LIMIT, 1);
-      Log(InfoLogLevel::WARN_LEVEL, ioptions_.info_log,
-          "[%s] Stopping writes because of estimated pending compaction "
-          "bytes %" PRIu64,
-          name_.c_str(), compaction_needed_bytes);
-    } else if (mutable_cf_options.max_write_buffer_number > 3 &&
-               imm()->NumNotFlushed() >=
-                   mutable_cf_options.max_write_buffer_number - 1) {
-      write_controller_token_ =
-          SetupDelay(ioptions_.delayed_write_rate, write_controller,
-                     compaction_needed_bytes, prev_compaction_needed_bytes_,
-                     mutable_cf_options.disable_auto_compactions);
-      internal_stats_->AddCFStats(InternalStats::MEMTABLE_SLOWDOWN, 1);
-      Log(InfoLogLevel::WARN_LEVEL, ioptions_.info_log,
-          "[%s] Stalling writes because we have %d immutable memtables "
-          "(waiting for flush), max_write_buffer_number is set to %d "
-          "rate %" PRIu64,
-          name_.c_str(), imm()->NumNotFlushed(),
-          mutable_cf_options.max_write_buffer_number,
-          write_controller->delayed_write_rate());
+          name_.c_str(), current_->NumLevelFiles(0));
     } else if (mutable_cf_options.level0_slowdown_writes_trigger >= 0 &&
-               vstorage->l0_delay_trigger_count() >=
+               current_->NumLevelFiles(0) >=
                    mutable_cf_options.level0_slowdown_writes_trigger) {
+      uint64_t slowdown = SlowdownAmount(
+          current_->NumLevelFiles(0),
+          mutable_cf_options.level0_slowdown_writes_trigger,
+          mutable_cf_options.level0_stop_writes_trigger);
+      write_controller_token_ = write_controller->GetDelayToken(slowdown);
+      internal_stats_->AddCFStats(InternalStats::LEVEL0_SLOWDOWN, slowdown);
+      Log(ioptions_.info_log,
+          "[%s] Stalling writes because we have %d level-0 files (%" PRIu64
+          "us)",
+          name_.c_str(), current_->NumLevelFiles(0), slowdown);
+    } else if (options_.hard_rate_limit > 1.0 &&
+               score > options_.hard_rate_limit) {
+      uint64_t kHardLimitSlowdown = 1000;
       write_controller_token_ =
-          SetupDelay(ioptions_.delayed_write_rate, write_controller,
-                     compaction_needed_bytes, prev_compaction_needed_bytes_,
-                     mutable_cf_options.disable_auto_compactions);
-      internal_stats_->AddCFStats(InternalStats::LEVEL0_SLOWDOWN_TOTAL, 1);
-      if (compaction_picker_->IsLevel0CompactionInProgress()) {
-        internal_stats_->AddCFStats(
-            InternalStats::LEVEL0_SLOWDOWN_WITH_COMPACTION, 1);
-      }
-      Log(InfoLogLevel::WARN_LEVEL, ioptions_.info_log,
-          "[%s] Stalling writes because we have %d level-0 files "
-          "rate %" PRIu64,
-          name_.c_str(), vstorage->l0_delay_trigger_count(),
-          write_controller->delayed_write_rate());
-    } else if (mutable_cf_options.soft_pending_compaction_bytes_limit > 0 &&
-               vstorage->estimated_compaction_needed_bytes() >=
-                   mutable_cf_options.soft_pending_compaction_bytes_limit) {
-      write_controller_token_ =
-          SetupDelay(ioptions_.delayed_write_rate, write_controller,
-                     compaction_needed_bytes, prev_compaction_needed_bytes_,
-                     mutable_cf_options.disable_auto_compactions);
-      internal_stats_->AddCFStats(
-          InternalStats::SOFT_PENDING_COMPACTION_BYTES_LIMIT, 1);
-      Log(InfoLogLevel::WARN_LEVEL, ioptions_.info_log,
-          "[%s] Stalling writes because of estimated pending compaction "
-          "bytes %" PRIu64 " rate %" PRIu64,
-          name_.c_str(), vstorage->estimated_compaction_needed_bytes(),
-          write_controller->delayed_write_rate());
-    } else if (vstorage->l0_delay_trigger_count() >=
-               GetL0ThresholdSpeedupCompaction(
-                   mutable_cf_options.level0_file_num_compaction_trigger,
-                   mutable_cf_options.level0_slowdown_writes_trigger)) {
-      write_controller_token_ = write_controller->GetCompactionPressureToken();
-      Log(InfoLogLevel::WARN_LEVEL, ioptions_.info_log,
-          "[%s] Increasing compaction threads because we have %d level-0 "
-          "files ",
-          name_.c_str(), vstorage->l0_delay_trigger_count());
-    } else if (vstorage->estimated_compaction_needed_bytes() >=
-               mutable_cf_options.soft_pending_compaction_bytes_limit / 4) {
-      // Increase compaction threads if bytes needed for compaction exceeds
-      // 1/4 of threshold for slowing down.
-      // If soft pending compaction byte limit is not set, always speed up
-      // compaction.
-      write_controller_token_ = write_controller->GetCompactionPressureToken();
-      if (mutable_cf_options.soft_pending_compaction_bytes_limit > 0) {
-        Log(InfoLogLevel::WARN_LEVEL, ioptions_.info_log,
-            "[%s] Increasing compaction threads because of estimated pending "
-            "compaction "
-            "bytes %" PRIu64,
-            name_.c_str(), vstorage->estimated_compaction_needed_bytes());
-      }
+          write_controller->GetDelayToken(kHardLimitSlowdown);
+      internal_stats_->RecordLevelNSlowdown(max_level, kHardLimitSlowdown,
+                                            false);
+      Log(ioptions_.info_log,
+          "[%s] Stalling writes because we hit hard limit on level %d. "
+          "(%" PRIu64 "us)",
+          name_.c_str(), max_level, kHardLimitSlowdown);
+    } else if (options_.soft_rate_limit > 0.0 &&
+               score > options_.soft_rate_limit) {
+      uint64_t slowdown = SlowdownAmount(score, options_.soft_rate_limit,
+                                         options_.hard_rate_limit);
+      write_controller_token_ = write_controller->GetDelayToken(slowdown);
+      internal_stats_->RecordLevelNSlowdown(max_level, slowdown, true);
+      Log(ioptions_.info_log,
+          "[%s] Stalling writes because we hit soft limit on level %d (%" PRIu64
+          "us)",
+          name_.c_str(), max_level, slowdown);
     } else {
       write_controller_token_.reset();
     }
-    prev_compaction_needed_bytes_ = compaction_needed_bytes;
   }
 }
 
@@ -662,66 +384,36 @@ const EnvOptions* ColumnFamilyData::soptions() const {
   return &(column_family_set_->env_options_);
 }
 
-void ColumnFamilyData::SetCurrent(Version* current_version) {
-  current_ = current_version;
-}
+void ColumnFamilyData::SetCurrent(Version* current) { current_ = current; }
 
-uint64_t ColumnFamilyData::GetNumLiveVersions() const {
-  return VersionSet::GetNumLiveVersions(dummy_versions_);
-}
-
-uint64_t ColumnFamilyData::GetTotalSstFilesSize() const {
-  return VersionSet::GetTotalSstFilesSize(dummy_versions_);
-}
-
-MemTable* ColumnFamilyData::ConstructNewMemtable(
-    const MutableCFOptions& mutable_cf_options, SequenceNumber earliest_seq) {
+void ColumnFamilyData::CreateNewMemtable(const MemTableOptions& moptions) {
   assert(current_ != nullptr);
-  return new MemTable(internal_comparator_, ioptions_, mutable_cf_options,
-                      write_buffer_, earliest_seq);
-}
-
-void ColumnFamilyData::CreateNewMemtable(
-    const MutableCFOptions& mutable_cf_options, SequenceNumber earliest_seq) {
   if (mem_ != nullptr) {
     delete mem_->Unref();
   }
-  SetMemtable(ConstructNewMemtable(mutable_cf_options, earliest_seq));
+  mem_ = new MemTable(internal_comparator_, ioptions_, moptions);
   mem_->Ref();
 }
 
-bool ColumnFamilyData::NeedsCompaction() const {
-  return compaction_picker_->NeedsCompaction(current_->storage_info());
-}
-
 Compaction* ColumnFamilyData::PickCompaction(
     const MutableCFOptions& mutable_options, LogBuffer* log_buffer) {
-  auto* result = compaction_picker_->PickCompaction(
-      GetName(), mutable_options, current_->storage_info(), log_buffer);
-  if (result != nullptr) {
-    result->SetInputVersion(current_);
-  }
+  auto result = compaction_picker_->PickCompaction(
+      mutable_options, current_, log_buffer);
   return result;
 }
 
-const int ColumnFamilyData::kCompactAllLevels = -1;
-const int ColumnFamilyData::kCompactToBaseLevel = -2;
-
 Compaction* ColumnFamilyData::CompactRange(
-    const MutableCFOptions& mutable_cf_options, int input_level,
-    int output_level, uint32_t output_path_id, const InternalKey* begin,
-    const InternalKey* end, InternalKey** compaction_end, bool* conflict) {
-  auto* result = compaction_picker_->CompactRange(
-      GetName(), mutable_cf_options, current_->storage_info(), input_level,
-      output_level, output_path_id, begin, end, compaction_end, conflict);
-  if (result != nullptr) {
-    result->SetInputVersion(current_);
-  }
-  return result;
+    const MutableCFOptions& mutable_cf_options,
+    int input_level, int output_level, uint32_t output_path_id,
+    const InternalKey* begin, const InternalKey* end,
+    InternalKey** compaction_end) {
+  return compaction_picker_->CompactRange(
+      mutable_cf_options, current_, input_level, output_level,
+      output_path_id, begin, end, compaction_end);
 }
 
 SuperVersion* ColumnFamilyData::GetReferencedSuperVersion(
-    InstrumentedMutex* db_mutex) {
+    port::Mutex* db_mutex) {
   SuperVersion* sv = nullptr;
   sv = GetThreadLocalSuperVersion(db_mutex);
   sv->Ref();
@@ -732,7 +424,7 @@ SuperVersion* ColumnFamilyData::GetReferencedSuperVersion(
 }
 
 SuperVersion* ColumnFamilyData::GetThreadLocalSuperVersion(
-    InstrumentedMutex* db_mutex) {
+    port::Mutex* db_mutex) {
   SuperVersion* sv = nullptr;
   // The SuperVersion is cached in thread local storage to avoid acquiring
   // mutex when SuperVersion does not change since the last use. When a new
@@ -783,7 +475,7 @@ bool ColumnFamilyData::ReturnThreadLocalSuperVersion(SuperVersion* sv) {
   void* expected = SuperVersion::kSVInUse;
   if (local_sv_->CompareAndSwap(static_cast<void*>(sv), expected)) {
     // When we see kSVInUse in the ThreadLocal, we are sure ThreadLocal
-    // storage has not been altered and no Scrape has happened. The
+    // storage has not been altered and no Scrape has happend. The
     // SuperVersion is still current.
     return true;
   } else {
@@ -796,13 +488,13 @@ bool ColumnFamilyData::ReturnThreadLocalSuperVersion(SuperVersion* sv) {
 }
 
 SuperVersion* ColumnFamilyData::InstallSuperVersion(
-    SuperVersion* new_superversion, InstrumentedMutex* db_mutex) {
+    SuperVersion* new_superversion, port::Mutex* db_mutex) {
   db_mutex->AssertHeld();
   return InstallSuperVersion(new_superversion, db_mutex, mutable_cf_options_);
 }
 
 SuperVersion* ColumnFamilyData::InstallSuperVersion(
-    SuperVersion* new_superversion, InstrumentedMutex* db_mutex,
+    SuperVersion* new_superversion, port::Mutex* db_mutex,
     const MutableCFOptions& mutable_cf_options) {
   new_superversion->db_mutex = db_mutex;
   new_superversion->mutable_cf_options = mutable_cf_options;
@@ -839,28 +531,25 @@ void ColumnFamilyData::ResetThreadLocalSuperVersions() {
   }
 }
 
-#ifndef ROCKSDB_LITE
-Status ColumnFamilyData::SetOptions(
+bool ColumnFamilyData::SetOptions(
       const std::unordered_map<std::string, std::string>& options_map) {
   MutableCFOptions new_mutable_cf_options;
-  Status s = GetMutableOptionsFromStrings(mutable_cf_options_, options_map,
-                                          &new_mutable_cf_options);
-  if (s.ok()) {
+  if (GetMutableOptionsFromStrings(mutable_cf_options_, options_map,
+                                   &new_mutable_cf_options)) {
     mutable_cf_options_ = new_mutable_cf_options;
     mutable_cf_options_.RefreshDerivedOptions(ioptions_);
+    return true;
   }
-  return s;
+  return false;
 }
-#endif  // ROCKSDB_LITE
 
 ColumnFamilySet::ColumnFamilySet(const std::string& dbname,
                                  const DBOptions* db_options,
                                  const EnvOptions& env_options,
                                  Cache* table_cache,
-                                 WriteBuffer* write_buffer,
                                  WriteController* write_controller)
     : max_column_family_(0),
-      dummy_cfd_(new ColumnFamilyData(0, "", nullptr, nullptr, nullptr,
+      dummy_cfd_(new ColumnFamilyData(0, "", nullptr, nullptr,
                                       ColumnFamilyOptions(), db_options,
                                       env_options, nullptr)),
       default_cfd_cache_(nullptr),
@@ -868,8 +557,8 @@ ColumnFamilySet::ColumnFamilySet(const std::string& dbname,
       db_options_(db_options),
       env_options_(env_options),
       table_cache_(table_cache),
-      write_buffer_(write_buffer),
-      write_controller_(write_controller) {
+      write_controller_(write_controller),
+      spin_lock_(ATOMIC_FLAG_INIT) {
   // initialize linked list
   dummy_cfd_->prev_ = dummy_cfd_;
   dummy_cfd_->next_ = dummy_cfd_;
@@ -926,17 +615,18 @@ size_t ColumnFamilySet::NumberOfColumnFamilies() const {
   return column_families_.size();
 }
 
-// under a DB mutex AND write thread
+// under a DB mutex
 ColumnFamilyData* ColumnFamilySet::CreateColumnFamily(
     const std::string& name, uint32_t id, Version* dummy_versions,
     const ColumnFamilyOptions& options) {
   assert(column_families_.find(name) == column_families_.end());
   ColumnFamilyData* new_cfd =
-      new ColumnFamilyData(id, name, dummy_versions, table_cache_,
-                           write_buffer_, options, db_options_,
-                           env_options_, this);
+      new ColumnFamilyData(id, name, dummy_versions, table_cache_, options,
+                           db_options_, env_options_, this);
+  Lock();
   column_families_.insert({name, id});
   column_family_data_.insert({id, new_cfd});
+  Unlock();
   max_column_family_ = std::max(max_column_family_, id);
   // add to linked list
   new_cfd->next_ = dummy_cfd_;
@@ -950,11 +640,19 @@ ColumnFamilyData* ColumnFamilySet::CreateColumnFamily(
   return new_cfd;
 }
 
+void ColumnFamilySet::Lock() {
+  // spin lock
+  while (spin_lock_.test_and_set(std::memory_order_acquire)) {
+  }
+}
+
+void ColumnFamilySet::Unlock() { spin_lock_.clear(std::memory_order_release); }
+
 // REQUIRES: DB mutex held
 void ColumnFamilySet::FreeDeadColumnFamilies() {
   autovector<ColumnFamilyData*> to_delete;
   for (auto cfd = dummy_cfd_->next_; cfd != dummy_cfd_; cfd = cfd->next_) {
-    if (cfd->refs_.load(std::memory_order_relaxed) == 0) {
+    if (cfd->refs_ == 0) {
       to_delete.push_back(cfd);
     }
   }
@@ -964,21 +662,30 @@ void ColumnFamilySet::FreeDeadColumnFamilies() {
   }
 }
 
-// under a DB mutex AND from a write thread
+// under a DB mutex
 void ColumnFamilySet::RemoveColumnFamily(ColumnFamilyData* cfd) {
   auto cfd_iter = column_family_data_.find(cfd->GetID());
   assert(cfd_iter != column_family_data_.end());
+  Lock();
   column_family_data_.erase(cfd_iter);
   column_families_.erase(cfd->GetName());
+  Unlock();
 }
 
-// under a DB mutex OR from a write thread
 bool ColumnFamilyMemTablesImpl::Seek(uint32_t column_family_id) {
   if (column_family_id == 0) {
     // optimization for common case
     current_ = column_family_set_->GetDefault();
   } else {
+    // maybe outside of db mutex, should lock
+    column_family_set_->Lock();
     current_ = column_family_set_->GetColumnFamily(column_family_id);
+    column_family_set_->Unlock();
+    // TODO(icanadi) Maybe remove column family from the hash table when it's
+    // dropped?
+    if (current_ != nullptr && current_->IsDropped()) {
+      current_ = nullptr;
+    }
   }
   handle_.SetCFD(current_);
   return current_ != nullptr;
@@ -994,11 +701,23 @@ MemTable* ColumnFamilyMemTablesImpl::GetMemTable() const {
   return current_->mem();
 }
 
+const Options* ColumnFamilyMemTablesImpl::GetOptions() const {
+  assert(current_ != nullptr);
+  return current_->options();
+}
+
 ColumnFamilyHandle* ColumnFamilyMemTablesImpl::GetColumnFamilyHandle() {
   assert(current_ != nullptr);
   return &handle_;
 }
 
+void ColumnFamilyMemTablesImpl::CheckMemtableFull() {
+  if (current_ != nullptr && current_->mem()->ShouldScheduleFlush()) {
+    flush_scheduler_->ScheduleFlush(current_);
+    current_->mem()->MarkFlushScheduled();
+  }
+}
+
 uint32_t GetColumnFamilyID(ColumnFamilyHandle* column_family) {
   uint32_t column_family_id = 0;
   if (column_family != nullptr) {

db/column_family.h

@@ -1,4 +1,4 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+//  Copyright (c) 2013, Facebook, Inc.  All rights reserved.
 //  This source code is licensed under the BSD-style license found in the
 //  LICENSE file in the root directory of this source tree. An additional grant
 //  of patent rights can be found in the PATENTS file in the same directory.
@@ -14,17 +14,16 @@
 #include <vector>
 #include <atomic>
 
+#include "rocksdb/options.h"
+#include "rocksdb/db.h"
+#include "rocksdb/env.h"
 #include "db/memtable_list.h"
 #include "db/write_batch_internal.h"
 #include "db/write_controller.h"
 #include "db/table_cache.h"
-#include "db/table_properties_collector.h"
-#include "rocksdb/compaction_job_stats.h"
-#include "rocksdb/db.h"
-#include "rocksdb/env.h"
-#include "rocksdb/options.h"
-#include "util/mutable_cf_options.h"
 #include "util/thread_local.h"
+#include "db/flush_scheduler.h"
+#include "util/mutable_cf_options.h"
 
 namespace rocksdb {
 
@@ -39,10 +38,6 @@ class InternalStats;
 class ColumnFamilyData;
 class DBImpl;
 class LogBuffer;
-class InstrumentedMutex;
-class InstrumentedMutexLock;
-
-extern const double kSlowdownRatio;
 
 // ColumnFamilyHandleImpl is the class that clients use to access different
 // column families. It has non-trivial destructor, which gets called when client
@@ -50,21 +45,18 @@ extern const double kSlowdownRatio;
 class ColumnFamilyHandleImpl : public ColumnFamilyHandle {
  public:
   // create while holding the mutex
-  ColumnFamilyHandleImpl(
-      ColumnFamilyData* cfd, DBImpl* db, InstrumentedMutex* mutex);
+  ColumnFamilyHandleImpl(ColumnFamilyData* cfd, DBImpl* db, port::Mutex* mutex);
   // destroy without mutex
   virtual ~ColumnFamilyHandleImpl();
   virtual ColumnFamilyData* cfd() const { return cfd_; }
   virtual const Comparator* user_comparator() const;
 
-  virtual uint32_t GetID() const override;
-  virtual const std::string& GetName() const override;
-  virtual Status GetDescriptor(ColumnFamilyDescriptor* desc) override;
+  virtual uint32_t GetID() const;
 
  private:
   ColumnFamilyData* cfd_;
   DBImpl* db_;
-  InstrumentedMutex* mutex_;
+  port::Mutex* mutex_;
 };
 
 // Does not ref-count ColumnFamilyData
@@ -78,7 +70,7 @@ class ColumnFamilyHandleInternal : public ColumnFamilyHandleImpl {
   ColumnFamilyHandleInternal()
       : ColumnFamilyHandleImpl(nullptr, nullptr, nullptr) {}
 
-  void SetCFD(ColumnFamilyData* _cfd) { internal_cfd_ = _cfd; }
+  void SetCFD(ColumnFamilyData* cfd) { internal_cfd_ = cfd; }
   virtual ColumnFamilyData* cfd() const override { return internal_cfd_; }
 
  private:
@@ -87,23 +79,24 @@ class ColumnFamilyHandleInternal : public ColumnFamilyHandleImpl {
 
 // holds references to memtable, all immutable memtables and version
 struct SuperVersion {
-  // Accessing members of this class is not thread-safe and requires external
-  // synchronization (ie db mutex held or on write thread).
   MemTable* mem;
   MemTableListVersion* imm;
   Version* current;
   MutableCFOptions mutable_cf_options;
+  std::atomic<uint32_t> refs;
+  // We need to_delete because during Cleanup(), imm->Unref() returns
+  // all memtables that we need to free through this vector. We then
+  // delete all those memtables outside of mutex, during destruction
+  autovector<MemTable*> to_delete;
   // Version number of the current SuperVersion
   uint64_t version_number;
-
-  InstrumentedMutex* db_mutex;
+  port::Mutex* db_mutex;
 
   // should be called outside the mutex
   SuperVersion() = default;
   ~SuperVersion();
   SuperVersion* Ref();
-  // If Unref() returns true, Cleanup() should be called with mutex held
-  // before deleting this SuperVersion.
+
   bool Unref();
 
   // call these two methods with db mutex held
@@ -122,34 +115,15 @@ struct SuperVersion {
   static int dummy;
   static void* const kSVInUse;
   static void* const kSVObsolete;
-
- private:
-  std::atomic<uint32_t> refs;
-  // We need to_delete because during Cleanup(), imm->Unref() returns
-  // all memtables that we need to free through this vector. We then
-  // delete all those memtables outside of mutex, during destruction
-  autovector<MemTable*> to_delete;
 };
 
-extern Status CheckCompressionSupported(const ColumnFamilyOptions& cf_options);
-
-extern Status CheckConcurrentWritesSupported(
-    const ColumnFamilyOptions& cf_options);
-
-extern ColumnFamilyOptions SanitizeOptions(const DBOptions& db_options,
-                                           const InternalKeyComparator* icmp,
+extern ColumnFamilyOptions SanitizeOptions(const InternalKeyComparator* icmp,
                                            const ColumnFamilyOptions& src);
-// Wrap user defined table proproties collector factories `from cf_options`
-// into internal ones in int_tbl_prop_collector_factories. Add a system internal
-// one too.
-extern void GetIntTblPropCollectorFactory(
-    const ColumnFamilyOptions& cf_options,
-    std::vector<std::unique_ptr<IntTblPropCollectorFactory>>*
-        int_tbl_prop_collector_factories);
 
 class ColumnFamilySet;
 
-// This class keeps all the data that a column family needs.
+// This class keeps all the data that a column family needs. It's mosly dumb and
+// used just to provide access to metadata.
 // Most methods require DB mutex held, unless otherwise noted
 class ColumnFamilyData {
  public:
@@ -160,57 +134,51 @@ class ColumnFamilyData {
   // thread-safe
   const std::string& GetName() const { return name_; }
 
-  // Ref() can only be called from a context where the caller can guarantee
-  // that ColumnFamilyData is alive (while holding a non-zero ref already,
-  // holding a DB mutex, or as the leader in a write batch group).
-  void Ref() { refs_.fetch_add(1, std::memory_order_relaxed); }
-
-  // Unref decreases the reference count, but does not handle deletion
-  // when the count goes to 0.  If this method returns true then the
-  // caller should delete the instance immediately, or later, by calling
-  // FreeDeadColumnFamilies().  Unref() can only be called while holding
-  // a DB mutex, or during single-threaded recovery.
+  void Ref() { ++refs_; }
+  // will just decrease reference count to 0, but will not delete it. returns
+  // true if the ref count was decreased to zero. in that case, it can be
+  // deleted by the caller immediately, or later, by calling
+  // FreeDeadColumnFamilies()
   bool Unref() {
-    int old_refs = refs_.fetch_sub(1, std::memory_order_relaxed);
-    assert(old_refs > 0);
-    return old_refs == 1;
+    assert(refs_ > 0);
+    return --refs_ == 0;
   }
 
-  // SetDropped() can only be called under following conditions:
-  // 1) Holding a DB mutex,
-  // 2) from single-threaded write thread, AND
-  // 3) from single-threaded VersionSet::LogAndApply()
+  // This can only be called from single-threaded VersionSet::LogAndApply()
   // After dropping column family no other operation on that column family
   // will be executed. All the files and memory will be, however, kept around
   // until client drops the column family handle. That way, client can still
   // access data from dropped column family.
   // Column family can be dropped and still alive. In that state:
+  // *) Column family is not included in the iteration.
   // *) Compaction and flush is not executed on the dropped column family.
-  // *) Client can continue reading from column family. Writes will fail unless
-  // WriteOptions::ignore_missing_column_families is true
+  // *) Client can continue writing and reading from column family. However, all
+  // writes stay in the current memtable.
   // When the dropped column family is unreferenced, then we:
-  // *) Remove column family from the linked list maintained by ColumnFamilySet
   // *) delete all memory associated with that column family
   // *) delete all the files associated with that column family
-  void SetDropped();
+  void SetDropped() {
+    // can't drop default CF
+    assert(id_ != 0);
+    dropped_ = true;
+    write_controller_token_.reset();
+  }
   bool IsDropped() const { return dropped_; }
 
   // thread-safe
-  int NumberLevels() const { return ioptions_.num_levels; }
+  int NumberLevels() const { return options_.num_levels; }
 
   void SetLogNumber(uint64_t log_number) { log_number_ = log_number; }
   uint64_t GetLogNumber() const { return log_number_; }
 
-  // !!! To be deprecated! Please don't not use this function anymore!
-  const Options* options() const { return &options_; }
-
   // thread-safe
+  const Options* options() const { return &options_; }
   const EnvOptions* soptions() const;
   const ImmutableCFOptions* ioptions() const { return &ioptions_; }
   // REQUIRES: DB mutex held
   // This returns the MutableCFOptions used by current SuperVersion
   // You shoul use this API to reference MutableCFOptions most of the time.
-  const MutableCFOptions* GetCurrentMutableCFOptions() const {
+  const MutableCFOptions* mutable_cf_options() const {
     return &(super_version_->mutable_cf_options);
   }
   // REQUIRES: DB mutex held
@@ -218,11 +186,9 @@ class ColumnFamilyData {
   const MutableCFOptions* GetLatestMutableCFOptions() const {
     return &mutable_cf_options_;
   }
-#ifndef ROCKSDB_LITE
   // REQUIRES: DB mutex held
-  Status SetOptions(
+  bool SetOptions(
       const std::unordered_map<std::string, std::string>& options_map);
-#endif  // ROCKSDB_LITE
 
   InternalStats* internal_stats() { return internal_stats_.get(); }
 
@@ -230,36 +196,21 @@ class ColumnFamilyData {
   MemTable* mem() { return mem_; }
   Version* current() { return current_; }
   Version* dummy_versions() { return dummy_versions_; }
-  void SetCurrent(Version* _current);
-  uint64_t GetNumLiveVersions() const;  // REQUIRE: DB mutex held
-  uint64_t GetTotalSstFilesSize() const;  // REQUIRE: DB mutex held
   void SetMemtable(MemTable* new_mem) { mem_ = new_mem; }
-
-  // See Memtable constructor for explanation of earliest_seq param.
-  MemTable* ConstructNewMemtable(const MutableCFOptions& mutable_cf_options,
-                                 SequenceNumber earliest_seq);
-  void CreateNewMemtable(const MutableCFOptions& mutable_cf_options,
-                         SequenceNumber earliest_seq);
+  void SetCurrent(Version* current);
+  void CreateNewMemtable(const MemTableOptions& moptions);
 
   TableCache* table_cache() const { return table_cache_.get(); }
 
   // See documentation in compaction_picker.h
   // REQUIRES: DB mutex held
-  bool NeedsCompaction() const;
-  // REQUIRES: DB mutex held
   Compaction* PickCompaction(const MutableCFOptions& mutable_options,
                              LogBuffer* log_buffer);
-  // A flag to tell a manual compaction is to compact all levels together
-  // instad of for specific level.
-  static const int kCompactAllLevels;
-  // A flag to tell a manual compaction's output is base level.
-  static const int kCompactToBaseLevel;
-  // REQUIRES: DB mutex held
-  Compaction* CompactRange(const MutableCFOptions& mutable_cf_options,
-                           int input_level, int output_level,
-                           uint32_t output_path_id, const InternalKey* begin,
-                           const InternalKey* end, InternalKey** compaction_end,
-                           bool* manual_conflict);
+  Compaction* CompactRange(
+      const MutableCFOptions& mutable_cf_options,
+      int input_level, int output_level, uint32_t output_path_id,
+      const InternalKey* begin, const InternalKey* end,
+      InternalKey** compaction_end);
 
   CompactionPicker* compaction_picker() { return compaction_picker_.get(); }
   // thread-safe
@@ -271,19 +222,14 @@ class ColumnFamilyData {
     return internal_comparator_;
   }
 
-  const std::vector<std::unique_ptr<IntTblPropCollectorFactory>>*
-  int_tbl_prop_collector_factories() const {
-    return &int_tbl_prop_collector_factories_;
-  }
-
   SuperVersion* GetSuperVersion() { return super_version_; }
   // thread-safe
   // Return a already referenced SuperVersion to be used safely.
-  SuperVersion* GetReferencedSuperVersion(InstrumentedMutex* db_mutex);
+  SuperVersion* GetReferencedSuperVersion(port::Mutex* db_mutex);
   // thread-safe
   // Get SuperVersion stored in thread local storage. If it does not exist,
   // get a reference from a current SuperVersion.
-  SuperVersion* GetThreadLocalSuperVersion(InstrumentedMutex* db_mutex);
+  SuperVersion* GetThreadLocalSuperVersion(port::Mutex* db_mutex);
   // Try to return SuperVersion back to thread local storage. Retrun true on
   // success and false on failure. It fails when the thread local storage
   // contains anything other than SuperVersion::kSVInUse flag.
@@ -296,20 +242,21 @@ class ColumnFamilyData {
   // if its reference count is zero and needs deletion or nullptr if not
   // As argument takes a pointer to allocated SuperVersion to enable
   // the clients to allocate SuperVersion outside of mutex.
-  // IMPORTANT: Only call this from DBImpl::InstallSuperVersion()
   SuperVersion* InstallSuperVersion(SuperVersion* new_superversion,
-                                    InstrumentedMutex* db_mutex,
+                                    port::Mutex* db_mutex,
                                     const MutableCFOptions& mutable_cf_options);
   SuperVersion* InstallSuperVersion(SuperVersion* new_superversion,
-                                    InstrumentedMutex* db_mutex);
+                                    port::Mutex* db_mutex);
 
   void ResetThreadLocalSuperVersions();
 
-  // Protected by DB mutex
-  void set_pending_flush(bool value) { pending_flush_ = value; }
-  void set_pending_compaction(bool value) { pending_compaction_ = value; }
-  bool pending_flush() { return pending_flush_; }
-  bool pending_compaction() { return pending_compaction_; }
+ private:
+  friend class ColumnFamilySet;
+  ColumnFamilyData(uint32_t id, const std::string& name,
+                   Version* dummy_versions, Cache* table_cache,
+                   const ColumnFamilyOptions& options,
+                   const DBOptions* db_options, const EnvOptions& env_options,
+                   ColumnFamilySet* column_family_set);
 
   // Recalculate some small conditions, which are changed only during
   // compaction, adding new memtable and/or
@@ -319,26 +266,15 @@ class ColumnFamilyData {
   void RecalculateWriteStallConditions(
       const MutableCFOptions& mutable_cf_options);
 
- private:
-  friend class ColumnFamilySet;
-  ColumnFamilyData(uint32_t id, const std::string& name,
-                   Version* dummy_versions, Cache* table_cache,
-                   WriteBuffer* write_buffer,
-                   const ColumnFamilyOptions& options,
-                   const DBOptions* db_options, const EnvOptions& env_options,
-                   ColumnFamilySet* column_family_set);
-
   uint32_t id_;
   const std::string name_;
   Version* dummy_versions_;  // Head of circular doubly-linked list of versions.
   Version* current_;         // == dummy_versions->prev_
 
-  std::atomic<int> refs_;      // outstanding references to ColumnFamilyData
+  int refs_;                   // outstanding references to ColumnFamilyData
   bool dropped_;               // true if client dropped it
 
   const InternalKeyComparator internal_comparator_;
-  std::vector<std::unique_ptr<IntTblPropCollectorFactory>>
-      int_tbl_prop_collector_factories_;
 
   const Options options_;
   const ImmutableCFOptions ioptions_;
@@ -348,8 +284,6 @@ class ColumnFamilyData {
 
   std::unique_ptr<InternalStats> internal_stats_;
 
-  WriteBuffer* write_buffer_;
-
   MemTable* mem_;
   MemTableList imm_;
   SuperVersion* super_version_;
@@ -363,9 +297,8 @@ class ColumnFamilyData {
   // This needs to be destructed before mutex_
   std::unique_ptr<ThreadLocalPtr> local_sv_;
 
-  // pointers for a circular linked list. we use it to support iterations over
-  // all column families that are alive (note: dropped column families can also
-  // be alive as long as client holds a reference)
+  // pointers for a circular linked list. we use it to support iterations
+  // that can be concurrent with writes
   ColumnFamilyData* next_;
   ColumnFamilyData* prev_;
 
@@ -381,33 +314,21 @@ class ColumnFamilyData {
   ColumnFamilySet* column_family_set_;
 
   std::unique_ptr<WriteControllerToken> write_controller_token_;
-
-  // If true --> this ColumnFamily is currently present in DBImpl::flush_queue_
-  bool pending_flush_;
-
-  // If true --> this ColumnFamily is currently present in
-  // DBImpl::compaction_queue_
-  bool pending_compaction_;
-
-  uint64_t prev_compaction_needed_bytes_;
 };
 
 // ColumnFamilySet has interesting thread-safety requirements
-// * CreateColumnFamily() or RemoveColumnFamily() -- need to be protected by DB
-// mutex AND executed in the write thread.
-// CreateColumnFamily() should ONLY be called from VersionSet::LogAndApply() AND
-// single-threaded write thread. It is also called during Recovery and in
-// DumpManifest().
-// RemoveColumnFamily() is only called from SetDropped(). DB mutex needs to be
-// held and it needs to be executed from the write thread. SetDropped() also
-// guarantees that it will be called only from single-threaded LogAndApply(),
-// but this condition is not that important.
+// * CreateColumnFamily() or RemoveColumnFamily() -- need to protect by DB
+// mutex. Inside, column_family_data_ and column_families_ will be protected
+// by Lock() and Unlock(). CreateColumnFamily() should ONLY be called from
+// VersionSet::LogAndApply() in the normal runtime. It is also called
+// during Recovery and in DumpManifest(). RemoveColumnFamily() is called
+// from ColumnFamilyData destructor
 // * Iteration -- hold DB mutex, but you can release it in the body of
 // iteration. If you release DB mutex in body, reference the column
 // family before the mutex and unreference after you unlock, since the column
 // family might get dropped when the DB mutex is released
 // * GetDefault() -- thread safe
-// * GetColumnFamily() -- either inside of DB mutex or from a write thread
+// * GetColumnFamily() -- either inside of DB mutex or call Lock() <-> Unlock()
 // * GetNextColumnFamilyID(), GetMaxColumnFamily(), UpdateMaxColumnFamily(),
 // NumberOfColumnFamilies -- inside of DB mutex
 class ColumnFamilySet {
@@ -418,13 +339,10 @@ class ColumnFamilySet {
     explicit iterator(ColumnFamilyData* cfd)
         : current_(cfd) {}
     iterator& operator++() {
-      // dropped column families might still be included in this iteration
-      // (we're only removing them when client drops the last reference to the
-      // column family).
-      // dummy is never dead, so this will never be infinite
+      // dummy is never dead or dropped, so this will never be infinite
       do {
         current_ = current_->next_;
-      } while (current_->refs_.load(std::memory_order_relaxed) == 0);
+      } while (current_->refs_ == 0 || current_->IsDropped());
       return *this;
     }
     bool operator!=(const iterator& other) {
@@ -438,7 +356,7 @@ class ColumnFamilySet {
 
   ColumnFamilySet(const std::string& dbname, const DBOptions* db_options,
                   const EnvOptions& env_options, Cache* table_cache,
-                  WriteBuffer* write_buffer, WriteController* write_controller);
+                  WriteController* write_controller);
   ~ColumnFamilySet();
 
   ColumnFamilyData* GetDefault() const;
@@ -461,6 +379,9 @@ class ColumnFamilySet {
   iterator begin() { return iterator(dummy_cfd_->next_); }
   iterator end() { return iterator(dummy_cfd_); }
 
+  void Lock();
+  void Unlock();
+
   // REQUIRES: DB mutex held
   // Don't call while iterating over ColumnFamilySet
   void FreeDeadColumnFamilies();
@@ -472,12 +393,9 @@ class ColumnFamilySet {
   void RemoveColumnFamily(ColumnFamilyData* cfd);
 
   // column_families_ and column_family_data_ need to be protected:
-  // * when mutating both conditions have to be satisfied:
-  // 1. DB mutex locked
-  // 2. thread currently in single-threaded write thread
-  // * when reading, at least one condition needs to be satisfied:
-  // 1. DB mutex locked
-  // 2. accessed from a single-threaded write thread
+  // * when mutating: 1. DB mutex locked first, 2. spinlock locked second
+  // * when reading, either: 1. lock DB mutex, or 2. lock spinlock
+  //  (if both, respect the ordering to avoid deadlock!)
   std::unordered_map<std::string, uint32_t> column_families_;
   std::unordered_map<uint32_t, ColumnFamilyData*> column_family_data_;
 
@@ -493,50 +411,43 @@ class ColumnFamilySet {
   const DBOptions* const db_options_;
   const EnvOptions env_options_;
   Cache* table_cache_;
-  WriteBuffer* write_buffer_;
   WriteController* write_controller_;
+  std::atomic_flag spin_lock_;
 };
 
 // We use ColumnFamilyMemTablesImpl to provide WriteBatch a way to access
 // memtables of different column families (specified by ID in the write batch)
 class ColumnFamilyMemTablesImpl : public ColumnFamilyMemTables {
  public:
-  explicit ColumnFamilyMemTablesImpl(ColumnFamilySet* column_family_set)
-      : column_family_set_(column_family_set), current_(nullptr) {}
-
-  // Constructs a ColumnFamilyMemTablesImpl equivalent to one constructed
-  // with the arguments used to construct *orig.
-  explicit ColumnFamilyMemTablesImpl(ColumnFamilyMemTablesImpl* orig)
-      : column_family_set_(orig->column_family_set_), current_(nullptr) {}
+  explicit ColumnFamilyMemTablesImpl(ColumnFamilySet* column_family_set,
+                                     FlushScheduler* flush_scheduler)
+      : column_family_set_(column_family_set),
+        current_(nullptr),
+        flush_scheduler_(flush_scheduler) {}
 
   // sets current_ to ColumnFamilyData with column_family_id
   // returns false if column family doesn't exist
-  // REQUIRES: use this function of DBImpl::column_family_memtables_ should be
-  //           under a DB mutex OR from a write thread
   bool Seek(uint32_t column_family_id) override;
 
   // Returns log number of the selected column family
-  // REQUIRES: under a DB mutex OR from a write thread
   uint64_t GetLogNumber() const override;
 
   // REQUIRES: Seek() called first
-  // REQUIRES: use this function of DBImpl::column_family_memtables_ should be
-  //           under a DB mutex OR from a write thread
   virtual MemTable* GetMemTable() const override;
 
+  // Returns options for selected column family
+  // REQUIRES: Seek() called first
+  virtual const Options* GetOptions() const override;
+
   // Returns column family handle for the selected column family
-  // REQUIRES: use this function of DBImpl::column_family_memtables_ should be
-  //           under a DB mutex OR from a write thread
   virtual ColumnFamilyHandle* GetColumnFamilyHandle() override;
 
-  // Cannot be called while another thread is calling Seek().
-  // REQUIRES: use this function of DBImpl::column_family_memtables_ should be
-  //           under a DB mutex OR from a write thread
-  virtual ColumnFamilyData* current() override { return current_; }
+  virtual void CheckMemtableFull() override;
 
  private:
   ColumnFamilySet* column_family_set_;
   ColumnFamilyData* current_;
+  FlushScheduler* flush_scheduler_;
   ColumnFamilyHandleInternal handle_;
 };
 

db/compact_files_test.cc

@@ -1,227 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under the BSD-style license found in the
-//  LICENSE file in the root directory of this source tree. An additional grant
-//  of patent rights can be found in the PATENTS file in the same directory.
-
-#ifndef ROCKSDB_LITE
-
-#include <mutex>
-#include <string>
-#include <thread>
-#include <vector>
-
-#include "rocksdb/db.h"
-#include "rocksdb/env.h"
-#include "util/string_util.h"
-#include "util/sync_point.h"
-#include "util/testharness.h"
-
-namespace rocksdb {
-
-class CompactFilesTest : public testing::Test {
- public:
-  CompactFilesTest() {
-    env_ = Env::Default();
-    db_name_ = test::TmpDir(env_) + "/compact_files_test";
-  }
-
-  std::string db_name_;
-  Env* env_;
-};
-
-// A class which remembers the name of each flushed file.
-class FlushedFileCollector : public EventListener {
- public:
-  FlushedFileCollector() {}
-  ~FlushedFileCollector() {}
-
-  virtual void OnFlushCompleted(
-      DB* db, const FlushJobInfo& info) override {
-    std::lock_guard<std::mutex> lock(mutex_);
-    flushed_files_.push_back(info.file_path);
-  }
-
-  std::vector<std::string> GetFlushedFiles() {
-    std::lock_guard<std::mutex> lock(mutex_);
-    std::vector<std::string> result;
-    for (auto fname : flushed_files_) {
-      result.push_back(fname);
-    }
-    return result;
-  }
-
- private:
-  std::vector<std::string> flushed_files_;
-  std::mutex mutex_;
-};
-
-TEST_F(CompactFilesTest, L0ConflictsFiles) {
-  Options options;
-  // to trigger compaction more easily
-  const int kWriteBufferSize = 10000;
-  const int kLevel0Trigger = 2;
-  options.create_if_missing = true;
-  options.compaction_style = kCompactionStyleLevel;
-  // Small slowdown and stop trigger for experimental purpose.
-  options.level0_slowdown_writes_trigger = 20;
-  options.level0_stop_writes_trigger = 20;
-  options.level0_stop_writes_trigger = 20;
-  options.write_buffer_size = kWriteBufferSize;
-  options.level0_file_num_compaction_trigger = kLevel0Trigger;
-  options.compression = kNoCompression;
-
-  DB* db = nullptr;
-  DestroyDB(db_name_, options);
-  Status s = DB::Open(options, db_name_, &db);
-  assert(s.ok());
-  assert(db);
-
-  rocksdb::SyncPoint::GetInstance()->LoadDependency({
-      {"CompactFilesImpl:0", "BackgroundCallCompaction:0"},
-      {"BackgroundCallCompaction:1", "CompactFilesImpl:1"},
-  });
-  rocksdb::SyncPoint::GetInstance()->EnableProcessing();
-
-  // create couple files
-  // Background compaction starts and waits in BackgroundCallCompaction:0
-  for (int i = 0; i < kLevel0Trigger * 4; ++i) {
-    db->Put(WriteOptions(), ToString(i), "");
-    db->Put(WriteOptions(), ToString(100 - i), "");
-    db->Flush(FlushOptions());
-  }
-
-  rocksdb::ColumnFamilyMetaData meta;
-  db->GetColumnFamilyMetaData(&meta);
-  std::string file1;
-  for (auto& file : meta.levels[0].files) {
-    ASSERT_EQ(0, meta.levels[0].level);
-    if (file1 == "") {
-      file1 = file.db_path + "/" + file.name;
-    } else {
-      std::string file2 = file.db_path + "/" + file.name;
-      // Another thread starts a compact files and creates an L0 compaction
-      // The background compaction then notices that there is an L0 compaction
-      // already in progress and doesn't do an L0 compaction
-      // Once the background compaction finishes, the compact files finishes
-      ASSERT_OK(
-          db->CompactFiles(rocksdb::CompactionOptions(), {file1, file2}, 0));
-      break;
-    }
-  }
-  rocksdb::SyncPoint::GetInstance()->DisableProcessing();
-  delete db;
-}
-
-TEST_F(CompactFilesTest, ObsoleteFiles) {
-  Options options;
-  // to trigger compaction more easily
-  const int kWriteBufferSize = 10000;
-  options.create_if_missing = true;
-  // Disable RocksDB background compaction.
-  options.compaction_style = kCompactionStyleNone;
-  // Small slowdown and stop trigger for experimental purpose.
-  options.level0_slowdown_writes_trigger = 20;
-  options.level0_stop_writes_trigger = 20;
-  options.write_buffer_size = kWriteBufferSize;
-  options.max_write_buffer_number = 2;
-  options.compression = kNoCompression;
-
-  // Add listener
-  FlushedFileCollector* collector = new FlushedFileCollector();
-  options.listeners.emplace_back(collector);
-
-  DB* db = nullptr;
-  DestroyDB(db_name_, options);
-  Status s = DB::Open(options, db_name_, &db);
-  assert(s.ok());
-  assert(db);
-
-  // create couple files
-  for (int i = 1000; i < 2000; ++i) {
-    db->Put(WriteOptions(), ToString(i),
-            std::string(kWriteBufferSize / 10, 'a' + (i % 26)));
-  }
-
-  auto l0_files = collector->GetFlushedFiles();
-  ASSERT_OK(db->CompactFiles(CompactionOptions(), l0_files, 1));
-
-  // verify all compaction input files are deleted
-  for (auto fname : l0_files) {
-    ASSERT_EQ(Status::NotFound(), env_->FileExists(fname));
-  }
-  delete db;
-}
-
-TEST_F(CompactFilesTest, CapturingPendingFiles) {
-  Options options;
-  options.create_if_missing = true;
-  // Disable RocksDB background compaction.
-  options.compaction_style = kCompactionStyleNone;
-  // Always do full scans for obsolete files (needed to reproduce the issue).
-  options.delete_obsolete_files_period_micros = 0;
-
-  // Add listener.
-  FlushedFileCollector* collector = new FlushedFileCollector();
-  options.listeners.emplace_back(collector);
-
-  DB* db = nullptr;
-  DestroyDB(db_name_, options);
-  Status s = DB::Open(options, db_name_, &db);
-  assert(s.ok());
-  assert(db);
-
-  // Create 5 files.
-  for (int i = 0; i < 5; ++i) {
-    db->Put(WriteOptions(), "key" + ToString(i), "value");
-    db->Flush(FlushOptions());
-  }
-
-  auto l0_files = collector->GetFlushedFiles();
-  EXPECT_EQ(5, l0_files.size());
-
-  rocksdb::SyncPoint::GetInstance()->LoadDependency({
-      {"CompactFilesImpl:2", "CompactFilesTest.CapturingPendingFiles:0"},
-      {"CompactFilesTest.CapturingPendingFiles:1", "CompactFilesImpl:3"},
-  });
-  rocksdb::SyncPoint::GetInstance()->EnableProcessing();
-
-  // Start compacting files.
-  std::thread compaction_thread(
-      [&] { EXPECT_OK(db->CompactFiles(CompactionOptions(), l0_files, 1)); });
-
-  // In the meantime flush another file.
-  TEST_SYNC_POINT("CompactFilesTest.CapturingPendingFiles:0");
-  db->Put(WriteOptions(), "key5", "value");
-  db->Flush(FlushOptions());
-  TEST_SYNC_POINT("CompactFilesTest.CapturingPendingFiles:1");
-
-  compaction_thread.join();
-
-  rocksdb::SyncPoint::GetInstance()->DisableProcessing();
-
-  delete db;
-
-  // Make sure we can reopen the DB.
-  s = DB::Open(options, db_name_, &db);
-  ASSERT_TRUE(s.ok());
-  assert(db);
-  delete db;
-}
-
-}  // namespace rocksdb
-
-int main(int argc, char** argv) {
-  ::testing::InitGoogleTest(&argc, argv);
-  return RUN_ALL_TESTS();
-}
-
-#else
-#include <stdio.h>
-
-int main(int argc, char** argv) {
-  fprintf(stderr,
-          "SKIPPED as DBImpl::CompactFiles is not supported in ROCKSDB_LITE\n");
-  return 0;
-}
-
-#endif  // !ROCKSDB_LITE

db/compaction.cc

@@ -1,4 +1,4 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+//  Copyright (c) 2013, Facebook, Inc.  All rights reserved.
 //  This source code is licensed under the BSD-style license found in the
 //  LICENSE file in the root directory of this source tree. An additional grant
 //  of patent rights can be found in the PATENTS file in the same directory.
@@ -16,10 +16,8 @@
 #include <inttypes.h>
 #include <vector>
 
-#include "rocksdb/compaction_filter.h"
 #include "db/column_family.h"
 #include "util/logging.h"
-#include "util/sync_point.h"
 
 namespace rocksdb {
 
@@ -31,170 +29,50 @@ uint64_t TotalFileSize(const std::vector<FileMetaData*>& files) {
   return sum;
 }
 
-void Compaction::SetInputVersion(Version* _input_version) {
-  input_version_ = _input_version;
-  cfd_ = input_version_->cfd();
-
-  cfd_->Ref();
-  input_version_->Ref();
-  edit_.SetColumnFamily(cfd_->GetID());
-}
-
-void Compaction::GetBoundaryKeys(
-    VersionStorageInfo* vstorage,
-    const std::vector<CompactionInputFiles>& inputs, Slice* smallest_user_key,
-    Slice* largest_user_key) {
-  bool initialized = false;
-  const Comparator* ucmp = vstorage->InternalComparator()->user_comparator();
-  for (size_t i = 0; i < inputs.size(); ++i) {
-    if (inputs[i].files.empty()) {
-      continue;
-    }
-    if (inputs[i].level == 0) {
-      // we need to consider all files on level 0
-      for (const auto* f : inputs[i].files) {
-        const Slice& start_user_key = f->smallest.user_key();
-        if (!initialized ||
-            ucmp->Compare(start_user_key, *smallest_user_key) < 0) {
-          *smallest_user_key = start_user_key;
-        }
-        const Slice& end_user_key = f->largest.user_key();
-        if (!initialized ||
-            ucmp->Compare(end_user_key, *largest_user_key) > 0) {
-          *largest_user_key = end_user_key;
-        }
-        initialized = true;
-      }
-    } else {
-      // we only need to consider the first and last file
-      const Slice& start_user_key = inputs[i].files[0]->smallest.user_key();
-      if (!initialized ||
-          ucmp->Compare(start_user_key, *smallest_user_key) < 0) {
-        *smallest_user_key = start_user_key;
-      }
-      const Slice& end_user_key = inputs[i].files.back()->largest.user_key();
-      if (!initialized || ucmp->Compare(end_user_key, *largest_user_key) > 0) {
-        *largest_user_key = end_user_key;
-      }
-      initialized = true;
-    }
-  }
-}
-
-// helper function to determine if compaction is creating files at the
-// bottommost level
-bool Compaction::IsBottommostLevel(
-    int output_level, VersionStorageInfo* vstorage,
-    const std::vector<CompactionInputFiles>& inputs) {
-  if (inputs[0].level == 0 &&
-      inputs[0].files.back() != vstorage->LevelFiles(0).back()) {
-    return false;
-  }
-
-  Slice smallest_key, largest_key;
-  GetBoundaryKeys(vstorage, inputs, &smallest_key, &largest_key);
-
-  // Checks whether there are files living beyond the output_level.
-  // If lower levels have files, it checks for overlap between files
-  // if the compaction process and those files.
-  // Bottomlevel optimizations can be made if there are no files in
-  // lower levels or if there is no overlap with the files in
-  // the lower levels.
-  for (int i = output_level + 1; i < vstorage->num_levels(); i++) {
-    // It is not the bottommost level if there are files in higher
-    // levels when the output level is 0 or if there are files in
-    // higher levels which overlap with files to be compacted.
-    // output_level == 0 means that we want it to be considered
-    // s the bottommost level only if the last file on the level
-    // is a part of the files to be compacted - this is verified by
-    // the first if condition in this function
-    if (vstorage->NumLevelFiles(i) > 0 &&
-        (output_level == 0 ||
-         vstorage->OverlapInLevel(i, &smallest_key, &largest_key))) {
-      return false;
-    }
-  }
-  return true;
-}
-
-// test function to validate the functionality of IsBottommostLevel()
-// function -- determines if compaction with inputs and storage is bottommost
-bool Compaction::TEST_IsBottommostLevel(
-    int output_level, VersionStorageInfo* vstorage,
-    const std::vector<CompactionInputFiles>& inputs) {
-  return IsBottommostLevel(output_level, vstorage, inputs);
-}
-
-bool Compaction::IsFullCompaction(
-    VersionStorageInfo* vstorage,
-    const std::vector<CompactionInputFiles>& inputs) {
-  size_t num_files_in_compaction = 0;
-  size_t total_num_files = 0;
-  for (int l = 0; l < vstorage->num_levels(); l++) {
-    total_num_files += vstorage->NumLevelFiles(l);
-  }
-  for (size_t i = 0; i < inputs.size(); i++) {
-    num_files_in_compaction += inputs[i].size();
-  }
-  return num_files_in_compaction == total_num_files;
-}
-
-Compaction::Compaction(VersionStorageInfo* vstorage,
-                       const MutableCFOptions& _mutable_cf_options,
-                       std::vector<CompactionInputFiles> _inputs,
-                       int _output_level, uint64_t _target_file_size,
-                       uint64_t _max_grandparent_overlap_bytes,
-                       uint32_t _output_path_id, CompressionType _compression,
-                       std::vector<FileMetaData*> _grandparents,
-                       bool _manual_compaction, double _score,
-                       bool _deletion_compaction,
-                       CompactionReason _compaction_reason)
-    : start_level_(_inputs[0].level),
-      output_level_(_output_level),
-      max_output_file_size_(_target_file_size),
-      max_grandparent_overlap_bytes_(_max_grandparent_overlap_bytes),
-      mutable_cf_options_(_mutable_cf_options),
-      input_version_(nullptr),
-      number_levels_(vstorage->num_levels()),
-      cfd_(nullptr),
-      output_path_id_(_output_path_id),
-      output_compression_(_compression),
-      deletion_compaction_(_deletion_compaction),
-      inputs_(std::move(_inputs)),
-      grandparents_(std::move(_grandparents)),
+Compaction::Compaction(Version* input_version, int start_level, int out_level,
+                       uint64_t target_file_size,
+                       uint64_t max_grandparent_overlap_bytes,
+                       uint32_t output_path_id,
+                       CompressionType output_compression, bool seek_compaction,
+                       bool deletion_compaction)
+    : start_level_(start_level),
+      output_level_(out_level),
+      max_output_file_size_(target_file_size),
+      max_grandparent_overlap_bytes_(max_grandparent_overlap_bytes),
+      input_version_(input_version),
+      number_levels_(input_version_->NumberLevels()),
+      cfd_(input_version_->cfd_),
+      output_path_id_(output_path_id),
+      output_compression_(output_compression),
+      seek_compaction_(seek_compaction),
+      deletion_compaction_(deletion_compaction),
       grandparent_index_(0),
       seen_key_(false),
       overlapped_bytes_(0),
-      score_(_score),
-      bottommost_level_(IsBottommostLevel(output_level_, vstorage, inputs_)),
-      is_full_compaction_(IsFullCompaction(vstorage, inputs_)),
-      is_manual_compaction_(_manual_compaction),
-      compaction_reason_(_compaction_reason) {
-  MarkFilesBeingCompacted(true);
-  if (is_manual_compaction_) {
-    compaction_reason_ = CompactionReason::kManualCompaction;
+      base_index_(-1),
+      parent_index_(-1),
+      score_(0),
+      bottommost_level_(false),
+      is_full_compaction_(false),
+      is_manual_compaction_(false),
+      level_ptrs_(std::vector<size_t>(number_levels_)) {
+  cfd_->Ref();
+  input_version_->Ref();
+  edit_ = new VersionEdit();
+  edit_->SetColumnFamily(cfd_->GetID());
+  for (int i = 0; i < number_levels_; i++) {
+    level_ptrs_[i] = 0;
   }
-
-#ifndef NDEBUG
-  for (size_t i = 1; i < inputs_.size(); ++i) {
-    assert(inputs_[i].level > inputs_[i - 1].level);
+  int num_levels = output_level_ - start_level_ + 1;
+  input_levels_.resize(num_levels);
+  inputs_.resize(num_levels);
+  for (int i = 0; i < num_levels; ++i) {
+    inputs_[i].level = start_level_ + i;
   }
-#endif
-
-  // setup input_levels_
-  {
-    input_levels_.resize(num_input_levels());
-    for (size_t which = 0; which < num_input_levels(); which++) {
-      DoGenerateLevelFilesBrief(&input_levels_[which], inputs_[which].files,
-                                &arena_);
-    }
-  }
-
-  Slice smallest_user_key;
-  GetBoundaryKeys(vstorage, inputs_, &smallest_user_key, &largest_user_key_);
 }
 
 Compaction::~Compaction() {
+  delete edit_;
   if (input_version_ != nullptr) {
     input_version_->Unref();
   }
@@ -205,16 +83,11 @@ Compaction::~Compaction() {
   }
 }
 
-bool Compaction::InputCompressionMatchesOutput() const {
-  int base_level = input_version_->storage_info()->base_level();
-  bool matches = (GetCompressionType(*cfd_->ioptions(), start_level_,
-                                     base_level) == output_compression_);
-  if (matches) {
-    TEST_SYNC_POINT("Compaction::InputCompressionMatchesOutput:Matches");
-    return true;
+void Compaction::GenerateFileLevels() {
+  input_levels_.resize(num_input_levels());
+  for (int which = 0; which < num_input_levels(); which++) {
+    DoGenerateFileLevel(&input_levels_[which], inputs_[which].files, &arena_);
   }
-  TEST_SYNC_POINT("Compaction::InputCompressionMatchesOutput:DidntMatch");
-  return matches;
 }
 
 bool Compaction::IsTrivialMove() const {
@@ -222,49 +95,23 @@ bool Compaction::IsTrivialMove() const {
   // Otherwise, the move could create a parent file that will require
   // a very expensive merge later on.
   // If start_level_== output_level_, the purpose is to force compaction
-  // filter to be applied to that level, and thus cannot be a trivial move.
-
-  // Check if start level have files with overlapping ranges
-  if (start_level_ == 0 &&
-      input_version_->storage_info()->level0_non_overlapping() == false) {
-    // We cannot move files from L0 to L1 if the files are overlapping
-    return false;
-  }
-
-  if (is_manual_compaction_ &&
-      (cfd_->ioptions()->compaction_filter != nullptr ||
-       cfd_->ioptions()->compaction_filter_factory != nullptr)) {
-    // This is a manual compaction and we have a compaction filter that should
-    // be executed, we cannot do a trivial move
-    return false;
-  }
-
-  // Used in universal compaction, where trivial move can be done if the
-  // input files are non overlapping
-  if ((cfd_->ioptions()->compaction_options_universal.allow_trivial_move) &&
-      (output_level_ != 0)) {
-    return is_trivial_move_;
-  }
-
-  return (start_level_ != output_level_ && num_input_levels() == 1 &&
-          input(0, 0)->fd.GetPathId() == output_path_id() &&
-          InputCompressionMatchesOutput() &&
+  // filter to be applied to that level, and thus cannot be a trivia move.
+  return (start_level_ != output_level_ &&
+          num_input_levels() == 2 &&
+          num_input_files(0) == 1 &&
+          num_input_files(1) == 0 &&
           TotalFileSize(grandparents_) <= max_grandparent_overlap_bytes_);
 }
 
-void Compaction::AddInputDeletions(VersionEdit* out_edit) {
-  for (size_t which = 0; which < num_input_levels(); which++) {
+void Compaction::AddInputDeletions(VersionEdit* edit) {
+  for (int which = 0; which < num_input_levels(); which++) {
     for (size_t i = 0; i < inputs_[which].size(); i++) {
-      out_edit->DeleteFile(level(which), inputs_[which][i]->fd.GetNumber());
+      edit->DeleteFile(level(which), inputs_[which][i]->fd.GetNumber());
     }
   }
 }
 
-bool Compaction::KeyNotExistsBeyondOutputLevel(
-    const Slice& user_key, std::vector<size_t>* level_ptrs) const {
-  assert(input_version_ != nullptr);
-  assert(level_ptrs != nullptr);
-  assert(level_ptrs->size() == static_cast<size_t>(number_levels_));
+bool Compaction::KeyNotExistsBeyondOutputLevel(const Slice& user_key) {
   assert(cfd_->ioptions()->compaction_style != kCompactionStyleFIFO);
   if (cfd_->ioptions()->compaction_style == kCompactionStyleUniversal) {
     return bottommost_level_;
@@ -272,10 +119,9 @@ bool Compaction::KeyNotExistsBeyondOutputLevel(
   // Maybe use binary search to find right entry instead of linear search?
   const Comparator* user_cmp = cfd_->user_comparator();
   for (int lvl = output_level_ + 1; lvl < number_levels_; lvl++) {
-    const std::vector<FileMetaData*>& files =
-        input_version_->storage_info()->LevelFiles(lvl);
-    for (; level_ptrs->at(lvl) < files.size(); level_ptrs->at(lvl)++) {
-      auto* f = files[level_ptrs->at(lvl)];
+    const std::vector<FileMetaData*>& files = input_version_->files_[lvl];
+    for (; level_ptrs_[lvl] < files.size(); ) {
+      FileMetaData* f = files[level_ptrs_[lvl]];
       if (user_cmp->Compare(user_key, f->largest.user_key()) <= 0) {
         // We've advanced far enough
         if (user_cmp->Compare(user_key, f->smallest.user_key()) >= 0) {
@@ -285,6 +131,7 @@ bool Compaction::KeyNotExistsBeyondOutputLevel(
         }
         break;
       }
+      level_ptrs_[lvl]++;
     }
   }
   return true;
@@ -318,8 +165,8 @@ bool Compaction::ShouldStopBefore(const Slice& internal_key) {
 
 // Mark (or clear) each file that is being compacted
 void Compaction::MarkFilesBeingCompacted(bool mark_as_compacted) {
-  for (size_t i = 0; i < num_input_levels(); i++) {
-    for (size_t j = 0; j < inputs_[i].size(); j++) {
+  for (int i = 0; i < num_input_levels(); i++) {
+    for (unsigned int j = 0; j < inputs_[i].size(); j++) {
       assert(mark_as_compacted ? !inputs_[i][j]->being_compacted :
                                   inputs_[i][j]->being_compacted);
       inputs_[i][j]->being_compacted = mark_as_compacted;
@@ -327,51 +174,50 @@ void Compaction::MarkFilesBeingCompacted(bool mark_as_compacted) {
   }
 }
 
-// Sample output:
-// If compacting 3 L0 files, 2 L3 files and 1 L4 file, and outputting to L5,
-// print: "3@0 + 2@3 + 1@4 files to L5"
-const char* Compaction::InputLevelSummary(
-    InputLevelSummaryBuffer* scratch) const {
-  int len = 0;
-  bool is_first = true;
-  for (auto& input_level : inputs_) {
-    if (input_level.empty()) {
-      continue;
+// Is this compaction producing files at the bottommost level?
+void Compaction::SetupBottomMostLevel(bool is_manual) {
+  assert(cfd_->ioptions()->compaction_style != kCompactionStyleFIFO);
+  if (cfd_->ioptions()->compaction_style == kCompactionStyleUniversal) {
+    // If universal compaction style is used and manual
+    // compaction is occuring, then we are guaranteed that
+    // all files will be picked in a single compaction
+    // run. We can safely set bottommost_level_ = true.
+    // If it is not manual compaction, then bottommost_level_
+    // is already set when the Compaction was created.
+    if (is_manual) {
+      bottommost_level_ = true;
+    }
+    return;
+  }
+  bottommost_level_ = true;
+  // checks whether there are files living beyond the output_level.
+  for (int i = output_level_ + 1; i < number_levels_; i++) {
+    if (input_version_->NumLevelFiles(i) > 0) {
+      bottommost_level_ = false;
+      break;
     }
-    if (!is_first) {
-      len +=
-          snprintf(scratch->buffer + len, sizeof(scratch->buffer) - len, " + ");
-    } else {
-      is_first = false;
-    }
-    len += snprintf(scratch->buffer + len, sizeof(scratch->buffer) - len,
-                    "%" ROCKSDB_PRIszt "@%d", input_level.size(),
-                    input_level.level);
   }
-  snprintf(scratch->buffer + len, sizeof(scratch->buffer) - len,
-           " files to L%d", output_level());
-
-  return scratch->buffer;
 }
 
-uint64_t Compaction::CalculateTotalInputSize() const {
-  uint64_t size = 0;
-  for (auto& input_level : inputs_) {
-    for (auto f : input_level.files) {
-      size += f->fd.GetFileSize();
-    }
+void Compaction::ReleaseInputs() {
+  if (input_version_ != nullptr) {
+    input_version_->Unref();
+    input_version_ = nullptr;
+  }
+  if (cfd_ != nullptr) {
+    if (cfd_->Unref()) {
+      delete cfd_;
+    }
+    cfd_ = nullptr;
   }
-  return size;
 }
 
 void Compaction::ReleaseCompactionFiles(Status status) {
-  MarkFilesBeingCompacted(false);
   cfd_->compaction_picker()->ReleaseCompactionFiles(this, status);
 }
 
 void Compaction::ResetNextCompactionIndex() {
-  assert(input_version_ != nullptr);
-  input_version_->storage_info()->ResetNextCompactionIndex(start_level_);
+  input_version_->ResetNextCompactionIndex(start_level_);
 }
 
 namespace {
@@ -379,7 +225,7 @@ int InputSummary(const std::vector<FileMetaData*>& files, char* output,
                  int len) {
   *output = '\0';
   int write = 0;
-  for (size_t i = 0; i < files.size(); i++) {
+  for (unsigned int i = 0; i < files.size(); i++) {
     int sz = len - write;
     int ret;
     char sztxt[16];
@@ -397,22 +243,21 @@ int InputSummary(const std::vector<FileMetaData*>& files, char* output,
 void Compaction::Summary(char* output, int len) {
   int write =
       snprintf(output, len, "Base version %" PRIu64
-                            " Base level %d, inputs: [",
+                            " Base level %d, seek compaction:%d, inputs: [",
                input_version_->GetVersionNumber(),
-               start_level_);
+               start_level_, seek_compaction_);
   if (write < 0 || write >= len) {
     return;
   }
 
-  for (size_t level_iter = 0; level_iter < num_input_levels(); ++level_iter) {
-    if (level_iter > 0) {
+  for (int level = 0; level < num_input_levels(); ++level) {
+    if (level > 0) {
       write += snprintf(output + write, len - write, "], [");
       if (write < 0 || write >= len) {
         return;
       }
     }
-    write +=
-        InputSummary(inputs_[level_iter].files, output + write, len - write);
+    write += InputSummary(inputs_[level].files, output + write, len - write);
     if (write < 0 || write >= len) {
       return;
     }
@@ -421,52 +266,22 @@ void Compaction::Summary(char* output, int len) {
   snprintf(output + write, len - write, "]");
 }
 
-uint64_t Compaction::OutputFilePreallocationSize() {
+uint64_t Compaction::OutputFilePreallocationSize(
+    const MutableCFOptions& mutable_options) {
   uint64_t preallocation_size = 0;
 
-  if (cfd_->ioptions()->compaction_style == kCompactionStyleLevel ||
-      output_level() > 0) {
-    preallocation_size = max_output_file_size_;
+  if (cfd_->ioptions()->compaction_style == kCompactionStyleLevel) {
+    preallocation_size = mutable_options.MaxFileSizeForLevel(output_level());
   } else {
-    // output_level() == 0
-    assert(num_input_levels() > 0);
-    for (const auto& f : inputs_[0].files) {
-      preallocation_size += f->fd.GetFileSize();
+    for (int level = 0; level < num_input_levels(); ++level) {
+      for (const auto& f : inputs_[level].files) {
+        preallocation_size += f->fd.GetFileSize();
+      }
     }
   }
   // Over-estimate slightly so we don't end up just barely crossing
   // the threshold
-  return preallocation_size + (preallocation_size / 10);
-}
-
-std::unique_ptr<CompactionFilter> Compaction::CreateCompactionFilter() const {
-  if (!cfd_->ioptions()->compaction_filter_factory) {
-    return nullptr;
-  }
-
-  CompactionFilter::Context context;
-  context.is_full_compaction = is_full_compaction_;
-  context.is_manual_compaction = is_manual_compaction_;
-  context.column_family_id = cfd_->GetID();
-  return cfd_->ioptions()->compaction_filter_factory->CreateCompactionFilter(
-      context);
-}
-
-bool Compaction::IsOutputLevelEmpty() const {
-  return inputs_.back().level != output_level_ || inputs_.back().empty();
-}
-
-bool Compaction::ShouldFormSubcompactions() const {
-  if (mutable_cf_options_.max_subcompactions <= 1 || cfd_ == nullptr) {
-    return false;
-  }
-  if (cfd_->ioptions()->compaction_style == kCompactionStyleLevel) {
-    return start_level_ == 0 && !IsOutputLevelEmpty();
-  } else if (cfd_->ioptions()->compaction_style == kCompactionStyleUniversal) {
-    return number_levels_ > 1 && output_level_ > 0;
-  } else {
-    return false;
-  }
+  return preallocation_size * 1.1;
 }
 
 }  // namespace rocksdb

db/compaction.h

@@ -1,4 +1,4 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+//  Copyright (c) 2013, Facebook, Inc.  All rights reserved.
 //  This source code is licensed under the BSD-style license found in the
 //  LICENSE file in the root directory of this source tree. An additional grant
 //  of patent rights can be found in the PATENTS file in the same directory.
@@ -23,27 +23,15 @@ struct CompactionInputFiles {
   inline bool empty() const { return files.empty(); }
   inline size_t size() const { return files.size(); }
   inline void clear() { files.clear(); }
-  inline FileMetaData* operator[](size_t i) const { return files[i]; }
+  inline FileMetaData* operator[](int i) const { return files[i]; }
 };
 
 class Version;
 class ColumnFamilyData;
-class VersionStorageInfo;
-class CompactionFilter;
 
 // A Compaction encapsulates information about a compaction.
 class Compaction {
  public:
-  Compaction(VersionStorageInfo* input_version,
-             const MutableCFOptions& mutable_cf_options,
-             std::vector<CompactionInputFiles> inputs, int output_level,
-             uint64_t target_file_size, uint64_t max_grandparent_overlap_bytes,
-             uint32_t output_path_id, CompressionType compression,
-             std::vector<FileMetaData*> grandparents,
-             bool manual_compaction = false, double score = -1,
-             bool deletion_compaction = false,
-             CompactionReason compaction_reason = CompactionReason::kUnknown);
-
   // No copying allowed
   Compaction(const Compaction&) = delete;
   void operator=(const Compaction&) = delete;
@@ -52,27 +40,25 @@ class Compaction {
 
   // Returns the level associated to the specified compaction input level.
   // If compaction_input_level is not specified, then input_level is set to 0.
-  int level(size_t compaction_input_level = 0) const {
+  int level(int compaction_input_level = 0) const {
     return inputs_[compaction_input_level].level;
   }
 
-  int start_level() const { return start_level_; }
-
   // Outputs will go to this level
   int output_level() const { return output_level_; }
 
   // Returns the number of input levels in this compaction.
-  size_t num_input_levels() const { return inputs_.size(); }
+  int num_input_levels() const { return inputs_.size(); }
 
   // Return the object that holds the edits to the descriptor done
   // by this compaction.
-  VersionEdit* edit() { return &edit_; }
+  VersionEdit* edit() const { return edit_; }
 
   // Returns the number of input files associated to the specified
   // compaction input level.
   // The function will return 0 if when "compaction_input_level" < 0
   // or "compaction_input_level" >= "num_input_levels()".
-  size_t num_input_files(size_t compaction_input_level) const {
+  int num_input_files(size_t compaction_input_level) const {
     if (compaction_input_level < inputs_.size()) {
       return inputs_[compaction_input_level].size();
     }
@@ -89,7 +75,7 @@ class Compaction {
   // specified compaction input level.
   // REQUIREMENT: "compaction_input_level" must be >= 0 and
   //              < "input_levels()"
-  FileMetaData* input(size_t compaction_input_level, size_t i) const {
+  FileMetaData* input(size_t compaction_input_level, int i) const {
     assert(compaction_input_level < inputs_.size());
     return inputs_[compaction_input_level][i];
   }
@@ -98,48 +84,55 @@ class Compaction {
   // input level.
   // REQUIREMENT: "compaction_input_level" must be >= 0 and
   //              < "input_levels()"
-  const std::vector<FileMetaData*>* inputs(size_t compaction_input_level) {
+  std::vector<FileMetaData*>* const inputs(size_t compaction_input_level) {
     assert(compaction_input_level < inputs_.size());
     return &inputs_[compaction_input_level].files;
   }
 
-  // Returns the LevelFilesBrief of the specified compaction input level.
-  LevelFilesBrief* input_levels(size_t compaction_input_level) {
+  // Returns the FileLevel of the specified compaction input level.
+  FileLevel* input_levels(int compaction_input_level) {
     return &input_levels_[compaction_input_level];
   }
 
   // Maximum size of files to build during this compaction.
-  uint64_t max_output_file_size() const { return max_output_file_size_; }
+  uint64_t MaxOutputFileSize() const { return max_output_file_size_; }
 
   // What compression for output
-  CompressionType output_compression() const { return output_compression_; }
+  CompressionType OutputCompressionType() const { return output_compression_; }
 
   // Whether need to write output file to second DB path.
-  uint32_t output_path_id() const { return output_path_id_; }
+  uint32_t GetOutputPathId() const { return output_path_id_; }
+
+  // Generate input_levels_ from inputs_
+  // Should be called when inputs_ is stable
+  void GenerateFileLevels();
 
   // Is this a trivial compaction that can be implemented by just
   // moving a single input file to the next level (no merging or splitting)
   bool IsTrivialMove() const;
 
-  // If true, then the compaction can be done by simply deleting input files.
-  bool deletion_compaction() const { return deletion_compaction_; }
+  // If true, then the comaction can be done by simply deleting input files.
+  bool IsDeletionCompaction() const {
+    return deletion_compaction_;
+  }
 
   // Add all inputs to this compaction as delete operations to *edit.
   void AddInputDeletions(VersionEdit* edit);
 
   // Returns true if the available information we have guarantees that
   // the input "user_key" does not exist in any level beyond "output_level()".
-  bool KeyNotExistsBeyondOutputLevel(const Slice& user_key,
-                                     std::vector<size_t>* level_ptrs) const;
+  bool KeyNotExistsBeyondOutputLevel(const Slice& user_key);
 
   // Returns true iff we should stop building the current output
   // before processing "internal_key".
   bool ShouldStopBefore(const Slice& internal_key);
 
+  // Release the input version for the compaction, once the compaction
+  // is successful.
+  void ReleaseInputs();
+
   // Clear all files to indicate that they are not being compacted
   // Delete this compaction from the list of running compactions.
-  //
-  // Requirement: DB mutex held
   void ReleaseCompactionFiles(Status status);
 
   // Returns the summary of the compaction in "output" with maximum "len"
@@ -151,29 +144,13 @@ class Compaction {
   double score() const { return score_; }
 
   // Is this compaction creating a file in the bottom most level?
-  bool bottommost_level() { return bottommost_level_; }
+  bool BottomMostLevel() { return bottommost_level_; }
 
   // Does this compaction include all sst files?
-  bool is_full_compaction() { return is_full_compaction_; }
+  bool IsFullCompaction() { return is_full_compaction_; }
 
   // Was this compaction triggered manually by the client?
-  bool is_manual_compaction() { return is_manual_compaction_; }
-
-  // Used when allow_trivial_move option is set in
-  // Universal compaction. If all the input files are
-  // non overlapping, then is_trivial_move_ variable
-  // will be set true, else false
-  void set_is_trivial_move(bool trivial_move) {
-    is_trivial_move_ = trivial_move;
-  }
-
-  // Used when allow_trivial_move option is set in
-  // Universal compaction. Returns true, if the input files
-  // are non-overlapping and can be trivially moved.
-  bool is_trivial_move() { return is_trivial_move_; }
-
-  // How many total levels are there?
-  int number_levels() const { return number_levels_; }
+  bool IsManualCompaction() { return is_manual_compaction_; }
 
   // Return the MutableCFOptions that should be used throughout the compaction
   // procedure
@@ -182,66 +159,18 @@ class Compaction {
   // Returns the size in bytes that the output file should be preallocated to.
   // In level compaction, that is max_file_size_. In universal compaction, that
   // is the sum of all input file sizes.
-  uint64_t OutputFilePreallocationSize();
-
-  void SetInputVersion(Version* input_version);
-
-  struct InputLevelSummaryBuffer {
-    char buffer[128];
-  };
-
-  const char* InputLevelSummary(InputLevelSummaryBuffer* scratch) const;
-
-  uint64_t CalculateTotalInputSize() const;
-
-  // In case of compaction error, reset the nextIndex that is used
-  // to pick up the next file to be compacted from files_by_size_
-  void ResetNextCompactionIndex();
-
-  // Create a CompactionFilter from compaction_filter_factory
-  std::unique_ptr<CompactionFilter> CreateCompactionFilter() const;
-
-  // Is the input level corresponding to output_level_ empty?
-  bool IsOutputLevelEmpty() const;
-
-  // Should this compaction be broken up into smaller ones run in parallel?
-  bool ShouldFormSubcompactions() const;
-
-  // test function to validate the functionality of IsBottommostLevel()
-  // function -- determines if compaction with inputs and storage is bottommost
-  static bool TEST_IsBottommostLevel(
-      int output_level, VersionStorageInfo* vstorage,
-      const std::vector<CompactionInputFiles>& inputs);
-
-  TablePropertiesCollection GetOutputTableProperties() const {
-    return output_table_properties_;
-  }
-
-  void SetOutputTableProperties(TablePropertiesCollection tp) {
-    output_table_properties_ = std::move(tp);
-  }
-
-  Slice GetLargestUserKey() const { return largest_user_key_; }
-
-  CompactionReason compaction_reason() { return compaction_reason_; }
+  uint64_t OutputFilePreallocationSize(const MutableCFOptions& mutable_options);
 
  private:
-  // mark (or clear) all files that are being compacted
-  void MarkFilesBeingCompacted(bool mark_as_compacted);
+  friend class CompactionPicker;
+  friend class UniversalCompactionPicker;
+  friend class FIFOCompactionPicker;
+  friend class LevelCompactionPicker;
 
-  // get the smallest and largest key present in files to be compacted
-  static void GetBoundaryKeys(VersionStorageInfo* vstorage,
-                              const std::vector<CompactionInputFiles>& inputs,
-                              Slice* smallest_key, Slice* largest_key);
-
-  // helper function to determine if compaction with inputs and storage is
-  // bottommost
-  static bool IsBottommostLevel(
-      int output_level, VersionStorageInfo* vstorage,
-      const std::vector<CompactionInputFiles>& inputs);
-
-  static bool IsFullCompaction(VersionStorageInfo* vstorage,
-                               const std::vector<CompactionInputFiles>& inputs);
+  Compaction(Version* input_version, int start_level, int out_level,
+             uint64_t target_file_size, uint64_t max_grandparent_overlap_bytes,
+             uint32_t output_path_id, CompressionType output_compression,
+             bool seek_compaction = false, bool deletion_compaction = false);
 
   const int start_level_;    // the lowest level to be compacted
   const int output_level_;  // levels to which output files are stored
@@ -249,54 +178,63 @@ class Compaction {
   uint64_t max_grandparent_overlap_bytes_;
   MutableCFOptions mutable_cf_options_;
   Version* input_version_;
-  VersionEdit edit_;
-  const int number_levels_;
+  VersionEdit* edit_;
+  int number_levels_;
   ColumnFamilyData* cfd_;
   Arena arena_;          // Arena used to allocate space for file_levels_
 
-  const uint32_t output_path_id_;
+  uint32_t output_path_id_;
   CompressionType output_compression_;
+  bool seek_compaction_;
   // If true, then the comaction can be done by simply deleting input files.
-  const bool deletion_compaction_;
+  bool deletion_compaction_;
 
-  // Compaction input files organized by level. Constant after construction
-  const std::vector<CompactionInputFiles> inputs_;
+  // Compaction input files organized by level.
+  autovector<CompactionInputFiles> inputs_;
 
   // A copy of inputs_, organized more closely in memory
-  autovector<LevelFilesBrief, 2> input_levels_;
+  autovector<FileLevel, 2> input_levels_;
 
   // State used to check for number of of overlapping grandparent files
   // (grandparent == "output_level_ + 1")
+  // This vector is updated by Version::GetOverlappingInputs().
   std::vector<FileMetaData*> grandparents_;
   size_t grandparent_index_;   // Index in grandparent_starts_
   bool seen_key_;              // Some output key has been seen
   uint64_t overlapped_bytes_;  // Bytes of overlap between current output
                                // and grandparent files
-  const double score_;         // score that was used to pick this compaction.
+  int base_index_;    // index of the file in files_[start_level_]
+  int parent_index_;  // index of some file with same range in
+                      // files_[start_level_+1]
+  double score_;      // score that was used to pick this compaction.
 
   // Is this compaction creating a file in the bottom most level?
-  const bool bottommost_level_;
+  bool bottommost_level_;
   // Does this compaction include all sst files?
-  const bool is_full_compaction_;
+  bool is_full_compaction_;
 
   // Is this compaction requested by the client?
-  const bool is_manual_compaction_;
+  bool is_manual_compaction_;
 
-  // True if we can do trivial move in Universal multi level
-  // compaction
-  bool is_trivial_move_;
+  // "level_ptrs_" holds indices into "input_version_->levels_", where each
+  // index remembers which file of an associated level we are currently used
+  // to check KeyNotExistsBeyondOutputLevel() for deletion operation.
+  // As it is for checking KeyNotExistsBeyondOutputLevel(), it only
+  // records indices for all levels beyond "output_level_".
+  std::vector<size_t> level_ptrs_;
 
-  // Does input compression match the output compression?
-  bool InputCompressionMatchesOutput() const;
+  // mark (or clear) all files that are being compacted
+  void MarkFilesBeingCompacted(bool mark_as_compacted);
 
-  // table properties of output files
-  TablePropertiesCollection output_table_properties_;
+  // Initialize whether the compaction is producing files at the
+  // bottommost level.
+  //
+  // @see BottomMostLevel()
+  void SetupBottomMostLevel(bool is_manual);
 
-  // largest user keys in compaction
-  Slice largest_user_key_;
-
-  // Reason for compaction
-  CompactionReason compaction_reason_;
+  // In case of compaction error, reset the nextIndex that is used
+  // to pick up the next file to be compacted from files_by_size_
+  void ResetNextCompactionIndex();
 };
 
 // Utility function

db/compaction_iterator.cc

@@ -1,440 +0,0 @@
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under the BSD-style license found in the
-//  LICENSE file in the root directory of this source tree. An additional grant
-//  of patent rights can be found in the PATENTS file in the same directory.
-
-#include "db/compaction_iterator.h"
-#include "table/internal_iterator.h"
-
-namespace rocksdb {
-
-CompactionIterator::CompactionIterator(
-    InternalIterator* input, const Comparator* cmp, MergeHelper* merge_helper,
-    SequenceNumber last_sequence, std::vector<SequenceNumber>* snapshots,
-    SequenceNumber earliest_write_conflict_snapshot, Env* env,
-    bool expect_valid_internal_key, Compaction* compaction,
-    const CompactionFilter* compaction_filter, LogBuffer* log_buffer)
-    : input_(input),
-      cmp_(cmp),
-      merge_helper_(merge_helper),
-      snapshots_(snapshots),
-      earliest_write_conflict_snapshot_(earliest_write_conflict_snapshot),
-      env_(env),
-      expect_valid_internal_key_(expect_valid_internal_key),
-      compaction_(compaction),
-      compaction_filter_(compaction_filter),
-      log_buffer_(log_buffer),
-      merge_out_iter_(merge_helper_) {
-  assert(compaction_filter_ == nullptr || compaction_ != nullptr);
-  bottommost_level_ =
-      compaction_ == nullptr ? false : compaction_->bottommost_level();
-  if (compaction_ != nullptr) {
-    level_ptrs_ = std::vector<size_t>(compaction_->number_levels(), 0);
-  }
-
-  if (snapshots_->size() == 0) {
-    // optimize for fast path if there are no snapshots
-    visible_at_tip_ = last_sequence;
-    earliest_snapshot_ = visible_at_tip_;
-    latest_snapshot_ = 0;
-  } else {
-    visible_at_tip_ = 0;
-    earliest_snapshot_ = snapshots_->at(0);
-    latest_snapshot_ = snapshots_->back();
-  }
-  if (compaction_filter_ != nullptr && compaction_filter_->IgnoreSnapshots()) {
-    ignore_snapshots_ = true;
-  } else {
-    ignore_snapshots_ = false;
-  }
-}
-
-void CompactionIterator::ResetRecordCounts() {
-  iter_stats_.num_record_drop_user = 0;
-  iter_stats_.num_record_drop_hidden = 0;
-  iter_stats_.num_record_drop_obsolete = 0;
-}
-
-void CompactionIterator::SeekToFirst() {
-  NextFromInput();
-  PrepareOutput();
-}
-
-void CompactionIterator::Next() {
-  // If there is a merge output, return it before continuing to process the
-  // input.
-  if (merge_out_iter_.Valid()) {
-    merge_out_iter_.Next();
-
-    // Check if we returned all records of the merge output.
-    if (merge_out_iter_.Valid()) {
-      key_ = merge_out_iter_.key();
-      value_ = merge_out_iter_.value();
-      bool valid_key __attribute__((__unused__)) =
-          ParseInternalKey(key_, &ikey_);
-      // MergeUntil stops when it encounters a corrupt key and does not
-      // include them in the result, so we expect the keys here to be valid.
-      assert(valid_key);
-      // Keep current_key_ in sync.
-      current_key_.UpdateInternalKey(ikey_.sequence, ikey_.type);
-      key_ = current_key_.GetKey();
-      ikey_.user_key = current_key_.GetUserKey();
-      valid_ = true;
-    } else {
-      // MergeHelper moves the iterator to the first record after the merged
-      // records, so even though we reached the end of the merge output, we do
-      // not want to advance the iterator.
-      NextFromInput();
-    }
-  } else {
-    // Only advance the input iterator if there is no merge output and the
-    // iterator is not already at the next record.
-    if (!at_next_) {
-      input_->Next();
-    }
-    NextFromInput();
-  }
-
-  if (valid_) {
-    // Record that we've ouputted a record for the current key.
-    has_outputted_key_ = true;
-  }
-
-  PrepareOutput();
-}
-
-void CompactionIterator::NextFromInput() {
-  at_next_ = false;
-  valid_ = false;
-
-  while (!valid_ && input_->Valid()) {
-    key_ = input_->key();
-    value_ = input_->value();
-    iter_stats_.num_input_records++;
-
-    if (!ParseInternalKey(key_, &ikey_)) {
-      // If `expect_valid_internal_key_` is false, return the corrupted key
-      // and let the caller decide what to do with it.
-      // TODO(noetzli): We should have a more elegant solution for this.
-      if (expect_valid_internal_key_) {
-        assert(!"Corrupted internal key not expected.");
-        status_ = Status::Corruption("Corrupted internal key not expected.");
-        break;
-      }
-      key_ = current_key_.SetKey(key_);
-      has_current_user_key_ = false;
-      current_user_key_sequence_ = kMaxSequenceNumber;
-      current_user_key_snapshot_ = 0;
-      iter_stats_.num_input_corrupt_records++;
-      valid_ = true;
-      break;
-    }
-
-    // Update input statistics
-    if (ikey_.type == kTypeDeletion || ikey_.type == kTypeSingleDeletion) {
-      iter_stats_.num_input_deletion_records++;
-    }
-    iter_stats_.total_input_raw_key_bytes += key_.size();
-    iter_stats_.total_input_raw_value_bytes += value_.size();
-
-    // Check whether the user key changed. After this if statement current_key_
-    // is a copy of the current input key (maybe converted to a delete by the
-    // compaction filter). ikey_.user_key is pointing to the copy.
-    if (!has_current_user_key_ ||
-        !cmp_->Equal(ikey_.user_key, current_user_key_)) {
-      // First occurrence of this user key
-      key_ = current_key_.SetKey(key_, &ikey_);
-      current_user_key_ = ikey_.user_key;
-      has_current_user_key_ = true;
-      has_outputted_key_ = false;
-      current_user_key_sequence_ = kMaxSequenceNumber;
-      current_user_key_snapshot_ = 0;
-
-      // apply the compaction filter to the first occurrence of the user key
-      if (compaction_filter_ != nullptr && ikey_.type == kTypeValue &&
-          (visible_at_tip_ || ikey_.sequence > latest_snapshot_ ||
-           ignore_snapshots_)) {
-        // If the user has specified a compaction filter and the sequence
-        // number is greater than any external snapshot, then invoke the
-        // filter. If the return value of the compaction filter is true,
-        // replace the entry with a deletion marker.
-        bool value_changed = false;
-        bool to_delete = false;
-        compaction_filter_value_.clear();
-        {
-          StopWatchNano timer(env_, true);
-          to_delete = compaction_filter_->Filter(
-              compaction_->level(), ikey_.user_key, value_,
-              &compaction_filter_value_, &value_changed);
-          iter_stats_.total_filter_time +=
-              env_ != nullptr ? timer.ElapsedNanos() : 0;
-        }
-        if (to_delete) {
-          // convert the current key to a delete
-          ikey_.type = kTypeDeletion;
-          current_key_.UpdateInternalKey(ikey_.sequence, kTypeDeletion);
-          // no value associated with delete
-          value_.clear();
-          iter_stats_.num_record_drop_user++;
-        } else if (value_changed) {
-          value_ = compaction_filter_value_;
-        }
-      }
-    } else {
-      // Update the current key to reflect the new sequence number/type without
-      // copying the user key.
-      // TODO(rven): Compaction filter does not process keys in this path
-      // Need to have the compaction filter process multiple versions
-      // if we have versions on both sides of a snapshot
-      current_key_.UpdateInternalKey(ikey_.sequence, ikey_.type);
-      key_ = current_key_.GetKey();
-      ikey_.user_key = current_key_.GetUserKey();
-    }
-
-    // If there are no snapshots, then this kv affect visibility at tip.
-    // Otherwise, search though all existing snapshots to find the earliest
-    // snapshot that is affected by this kv.
-    SequenceNumber last_sequence __attribute__((__unused__)) =
-        current_user_key_sequence_;
-    current_user_key_sequence_ = ikey_.sequence;
-    SequenceNumber last_snapshot = current_user_key_snapshot_;
-    SequenceNumber prev_snapshot = 0;  // 0 means no previous snapshot
-    current_user_key_snapshot_ =
-        visible_at_tip_ ? visible_at_tip_ : findEarliestVisibleSnapshot(
-                                                ikey_.sequence, &prev_snapshot);
-
-    if (clear_and_output_next_key_) {
-      // In the previous iteration we encountered a single delete that we could
-      // not compact out.  We will keep this Put, but can drop it's data.
-      // (See Optimization 3, below.)
-      assert(ikey_.type == kTypeValue);
-      assert(current_user_key_snapshot_ == last_snapshot);
-
-      value_.clear();
-      valid_ = true;
-      clear_and_output_next_key_ = false;
-    } else if (ikey_.type == kTypeSingleDeletion) {
-      // We can compact out a SingleDelete if:
-      // 1) We encounter the corresponding PUT -OR- we know that this key
-      //    doesn't appear past this output level
-      // =AND=
-      // 2) We've already returned a record in this snapshot -OR-
-      //    there are no earlier earliest_write_conflict_snapshot.
-      //
-      // Rule 1 is needed for SingleDelete correctness.  Rule 2 is needed to
-      // allow Transactions to do write-conflict checking (if we compacted away
-      // all keys, then we wouldn't know that a write happened in this
-      // snapshot).  If there is no earlier snapshot, then we know that there
-      // are no active transactions that need to know about any writes.
-      //
-      // Optimization 3:
-      // If we encounter a SingleDelete followed by a PUT and Rule 2 is NOT
-      // true, then we must output a SingleDelete.  In this case, we will decide
-      // to also output the PUT.  While we are compacting less by outputting the
-      // PUT now, hopefully this will lead to better compaction in the future
-      // when Rule 2 is later true (Ie, We are hoping we can later compact out
-      // both the SingleDelete and the Put, while we couldn't if we only
-      // outputted the SingleDelete now).
-      // In this case, we can save space by removing the PUT's value as it will
-      // never be read.
-      //
-      // Deletes and Merges are not supported on the same key that has a
-      // SingleDelete as it is not possible to correctly do any partial
-      // compaction of such a combination of operations.  The result of mixing
-      // those operations for a given key is documented as being undefined.  So
-      // we can choose how to handle such a combinations of operations.  We will
-      // try to compact out as much as we can in these cases.
-
-      // The easiest way to process a SingleDelete during iteration is to peek
-      // ahead at the next key.
-      ParsedInternalKey next_ikey;
-      input_->Next();
-
-      // Check whether the next key exists, is not corrupt, and is the same key
-      // as the single delete.
-      if (input_->Valid() && ParseInternalKey(input_->key(), &next_ikey) &&
-          cmp_->Equal(ikey_.user_key, next_ikey.user_key)) {
-        // Check whether the next key belongs to the same snapshot as the
-        // SingleDelete.
-        if (prev_snapshot == 0 || next_ikey.sequence > prev_snapshot) {
-          if (next_ikey.type == kTypeSingleDeletion) {
-            // We encountered two SingleDeletes in a row.  This could be due to
-            // unexpected user input.
-            // Skip the first SingleDelete and let the next iteration decide how
-            // to handle the second SingleDelete
-
-            // First SingleDelete has been skipped since we already called
-            // input_->Next().
-            ++iter_stats_.num_record_drop_obsolete;
-          } else if ((ikey_.sequence <= earliest_write_conflict_snapshot_) ||
-                     has_outputted_key_) {
-            // Found a matching value, we can drop the single delete and the
-            // value.  It is safe to drop both records since we've already
-            // outputted a key in this snapshot, or there is no earlier
-            // snapshot (Rule 2 above).
-
-            // Note: it doesn't matter whether the second key is a Put or if it
-            // is an unexpected Merge or Delete.  We will compact it out
-            // either way.
-            ++iter_stats_.num_record_drop_hidden;
-            ++iter_stats_.num_record_drop_obsolete;
-            // Already called input_->Next() once.  Call it a second time to
-            // skip past the second key.
-            input_->Next();
-          } else {
-            // Found a matching value, but we cannot drop both keys since
-            // there is an earlier snapshot and we need to leave behind a record
-            // to know that a write happened in this snapshot (Rule 2 above).
-            // Clear the value and output the SingleDelete. (The value will be
-            // outputted on the next iteration.)
-            ++iter_stats_.num_record_drop_hidden;
-
-            // Setting valid_ to true will output the current SingleDelete
-            valid_ = true;
-
-            // Set up the Put to be outputted in the next iteration.
-            // (Optimization 3).
-            clear_and_output_next_key_ = true;
-          }
-        } else {
-          // We hit the next snapshot without hitting a put, so the iterator
-          // returns the single delete.
-          valid_ = true;
-        }
-      } else {
-        // We are at the end of the input, could not parse the next key, or hit
-        // the next key. The iterator returns the single delete if the key
-        // possibly exists beyond the current output level.  We set
-        // has_current_user_key to false so that if the iterator is at the next
-        // key, we do not compare it again against the previous key at the next
-        // iteration. If the next key is corrupt, we return before the
-        // comparison, so the value of has_current_user_key does not matter.
-        has_current_user_key_ = false;
-        if (compaction_ != nullptr && ikey_.sequence <= earliest_snapshot_ &&
-            compaction_->KeyNotExistsBeyondOutputLevel(ikey_.user_key,
-                                                       &level_ptrs_)) {
-          // Key doesn't exist outside of this range.
-          // Can compact out this SingleDelete.
-          ++iter_stats_.num_record_drop_obsolete;
-        } else {
-          // Output SingleDelete
-          valid_ = true;
-        }
-      }
-
-      if (valid_) {
-        at_next_ = true;
-      }
-    } else if (last_snapshot == current_user_key_snapshot_) {
-      // If the earliest snapshot is which this key is visible in
-      // is the same as the visibility of a previous instance of the
-      // same key, then this kv is not visible in any snapshot.
-      // Hidden by an newer entry for same user key
-      // TODO: why not > ?
-      //
-      // Note: Dropping this key will not affect TransactionDB write-conflict
-      // checking since there has already been a record returned for this key
-      // in this snapshot.
-      assert(last_sequence >= current_user_key_sequence_);
-      ++iter_stats_.num_record_drop_hidden;  // (A)
-      input_->Next();
-    } else if (compaction_ != nullptr && ikey_.type == kTypeDeletion &&
-               ikey_.sequence <= earliest_snapshot_ &&
-               compaction_->KeyNotExistsBeyondOutputLevel(ikey_.user_key,
-                                                          &level_ptrs_)) {
-      // TODO(noetzli): This is the only place where we use compaction_
-      // (besides the constructor). We should probably get rid of this
-      // dependency and find a way to do similar filtering during flushes.
-      //
-      // For this user key:
-      // (1) there is no data in higher levels
-      // (2) data in lower levels will have larger sequence numbers
-      // (3) data in layers that are being compacted here and have
-      //     smaller sequence numbers will be dropped in the next
-      //     few iterations of this loop (by rule (A) above).
-      // Therefore this deletion marker is obsolete and can be dropped.
-      //
-      // Note:  Dropping this Delete will not affect TransactionDB
-      // write-conflict checking since it is earlier than any snapshot.
-      ++iter_stats_.num_record_drop_obsolete;
-      input_->Next();
-    } else if (ikey_.type == kTypeMerge) {
-      if (!merge_helper_->HasOperator()) {
-        LogToBuffer(log_buffer_, "Options::merge_operator is null.");
-        status_ = Status::InvalidArgument(
-            "merge_operator is not properly initialized.");
-        return;
-      }
-
-      // We know the merge type entry is not hidden, otherwise we would
-      // have hit (A)
-      // We encapsulate the merge related state machine in a different
-      // object to minimize change to the existing flow.
-      merge_helper_->MergeUntil(input_, prev_snapshot, bottommost_level_);
-      merge_out_iter_.SeekToFirst();
-
-      if (merge_out_iter_.Valid()) {
-        // NOTE: key, value, and ikey_ refer to old entries.
-        //       These will be correctly set below.
-        key_ = merge_out_iter_.key();
-        value_ = merge_out_iter_.value();
-        bool valid_key __attribute__((__unused__)) =
-            ParseInternalKey(key_, &ikey_);
-        // MergeUntil stops when it encounters a corrupt key and does not
-        // include them in the result, so we expect the keys here to valid.
-        assert(valid_key);
-        // Keep current_key_ in sync.
-        current_key_.UpdateInternalKey(ikey_.sequence, ikey_.type);
-        key_ = current_key_.GetKey();
-        ikey_.user_key = current_key_.GetUserKey();
-        valid_ = true;
-      } else {
-        // all merge operands were filtered out. reset the user key, since the
-        // batch consumed by the merge operator should not shadow any keys
-        // coming after the merges
-        has_current_user_key_ = false;
-      }
-    } else {
-      valid_ = true;
-    }
-  }
-}
-
-void CompactionIterator::PrepareOutput() {
-  // Zeroing out the sequence number leads to better compression.
-  // If this is the bottommost level (no files in lower levels)
-  // and the earliest snapshot is larger than this seqno
-  // and the userkey differs from the last userkey in compaction
-  // then we can squash the seqno to zero.
-
-  // This is safe for TransactionDB write-conflict checking since transactions
-  // only care about sequence number larger than any active snapshots.
-  if (bottommost_level_ && valid_ && ikey_.sequence < earliest_snapshot_ &&
-      ikey_.type != kTypeMerge &&
-      !cmp_->Equal(compaction_->GetLargestUserKey(), ikey_.user_key)) {
-    assert(ikey_.type != kTypeDeletion && ikey_.type != kTypeSingleDeletion);
-    ikey_.sequence = 0;
-    current_key_.UpdateInternalKey(0, ikey_.type);
-  }
-}
-
-inline SequenceNumber CompactionIterator::findEarliestVisibleSnapshot(
-    SequenceNumber in, SequenceNumber* prev_snapshot) {
-  assert(snapshots_->size());
-  SequenceNumber prev __attribute__((unused)) = 0;
-  for (const auto cur : *snapshots_) {
-    assert(prev <= cur);
-    if (cur >= in) {
-      *prev_snapshot = prev;
-      return cur;
-    }
-    prev = cur;
-    assert(prev);
-  }
-  *prev_snapshot = prev;
-  return kMaxSequenceNumber;
-}
-
-}  // namespace rocksdb

db/compaction_iterator.h

@@ -1,149 +0,0 @@
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under the BSD-style license found in the
-//  LICENSE file in the root directory of this source tree. An additional grant
-//  of patent rights can be found in the PATENTS file in the same directory.
-#pragma once
-
-#include <algorithm>
-#include <deque>
-#include <string>
-#include <vector>
-
-#include "db/compaction.h"
-#include "db/merge_helper.h"
-#include "rocksdb/compaction_filter.h"
-#include "util/log_buffer.h"
-
-namespace rocksdb {
-
-struct CompactionIteratorStats {
-  // Compaction statistics
-  int64_t num_record_drop_user = 0;
-  int64_t num_record_drop_hidden = 0;
-  int64_t num_record_drop_obsolete = 0;
-  uint64_t total_filter_time = 0;
-
-  // Input statistics
-  // TODO(noetzli): The stats are incomplete. They are lacking everything
-  // consumed by MergeHelper.
-  uint64_t num_input_records = 0;
-  uint64_t num_input_deletion_records = 0;
-  uint64_t num_input_corrupt_records = 0;
-  uint64_t total_input_raw_key_bytes = 0;
-  uint64_t total_input_raw_value_bytes = 0;
-};
-
-class CompactionIterator {
- public:
-  CompactionIterator(InternalIterator* input, const Comparator* cmp,
-                     MergeHelper* merge_helper, SequenceNumber last_sequence,
-                     std::vector<SequenceNumber>* snapshots,
-                     SequenceNumber earliest_write_conflict_snapshot, Env* env,
-                     bool expect_valid_internal_key,
-                     Compaction* compaction = nullptr,
-                     const CompactionFilter* compaction_filter = nullptr,
-                     LogBuffer* log_buffer = nullptr);
-
-  void ResetRecordCounts();
-
-  // Seek to the beginning of the compaction iterator output.
-  //
-  // REQUIRED: Call only once.
-  void SeekToFirst();
-
-  // Produces the next record in the compaction.
-  //
-  // REQUIRED: SeekToFirst() has been called.
-  void Next();
-
-  // Getters
-  const Slice& key() const { return key_; }
-  const Slice& value() const { return value_; }
-  const Status& status() const { return status_; }
-  const ParsedInternalKey& ikey() const { return ikey_; }
-  bool Valid() const { return valid_; }
-  const Slice& user_key() const { return current_user_key_; }
-  const CompactionIteratorStats& iter_stats() const { return iter_stats_; }
-
- private:
-  // Processes the input stream to find the next output
-  void NextFromInput();
-
-  // Do last preparations before presenting the output to the callee. At this
-  // point this only zeroes out the sequence number if possible for better
-  // compression.
-  void PrepareOutput();
-
-  // Given a sequence number, return the sequence number of the
-  // earliest snapshot that this sequence number is visible in.
-  // The snapshots themselves are arranged in ascending order of
-  // sequence numbers.
-  // Employ a sequential search because the total number of
-  // snapshots are typically small.
-  inline SequenceNumber findEarliestVisibleSnapshot(
-      SequenceNumber in, SequenceNumber* prev_snapshot);
-
-  InternalIterator* input_;
-  const Comparator* cmp_;
-  MergeHelper* merge_helper_;
-  const std::vector<SequenceNumber>* snapshots_;
-  const SequenceNumber earliest_write_conflict_snapshot_;
-  Env* env_;
-  bool expect_valid_internal_key_;
-  Compaction* compaction_;
-  const CompactionFilter* compaction_filter_;
-  LogBuffer* log_buffer_;
-  bool bottommost_level_;
-  bool valid_ = false;
-  SequenceNumber visible_at_tip_;
-  SequenceNumber earliest_snapshot_;
-  SequenceNumber latest_snapshot_;
-  bool ignore_snapshots_;
-
-  // State
-  //
-  // Points to a copy of the current compaction iterator output (current_key_)
-  // if valid_.
-  Slice key_;
-  // Points to the value in the underlying iterator that corresponds to the
-  // current output.
-  Slice value_;
-  // The status is OK unless compaction iterator encounters a merge operand
-  // while not having a merge operator defined.
-  Status status_;
-  // Stores the user key, sequence number and type of the current compaction
-  // iterator output (or current key in the underlying iterator during
-  // NextFromInput()).
-  ParsedInternalKey ikey_;
-  // Stores whether ikey_.user_key is valid. If set to false, the user key is
-  // not compared against the current key in the underlying iterator.
-  bool has_current_user_key_ = false;
-  bool at_next_ = false;  // If false, the iterator
-  // Holds a copy of the current compaction iterator output (or current key in
-  // the underlying iterator during NextFromInput()).
-  IterKey current_key_;
-  Slice current_user_key_;
-  SequenceNumber current_user_key_sequence_;
-  SequenceNumber current_user_key_snapshot_;
-
-  // True if the iterator has already returned a record for the current key.
-  bool has_outputted_key_ = false;
-
-  // truncated the value of the next key and output it without applying any
-  // compaction rules.  This is used for outputting a put after a single delete.
-  bool clear_and_output_next_key_ = false;
-
-  MergeOutputIterator merge_out_iter_;
-  std::string compaction_filter_value_;
-  // "level_ptrs" holds indices that remember which file of an associated
-  // level we were last checking during the last call to compaction->
-  // KeyNotExistsBeyondOutputLevel(). This allows future calls to the function
-  // to pick off where it left off since each subcompaction's key range is
-  // increasing so a later call to the function must be looking for a key that
-  // is in or beyond the last file checked during the previous call
-  std::vector<size_t> level_ptrs_;
-  CompactionIteratorStats iter_stats_;
-};
-}  // namespace rocksdb

db/compaction_iterator_test.cc

@@ -1,71 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under the BSD-style license found in the
-//  LICENSE file in the root directory of this source tree. An additional grant
-//  of patent rights can be found in the PATENTS file in the same directory.
-
-#include "db/compaction_iterator.h"
-#include "util/testharness.h"
-#include "util/testutil.h"
-
-namespace rocksdb {
-
-class CompactionIteratorTest : public testing::Test {
- public:
-  CompactionIteratorTest() : cmp_(BytewiseComparator()), snapshots_({}) {}
-
-  void InitIterator(const std::vector<std::string>& ks,
-                    const std::vector<std::string>& vs,
-                    SequenceNumber last_sequence) {
-    merge_helper_.reset(new MergeHelper(Env::Default(), cmp_, nullptr, nullptr,
-                                        nullptr, 0U, false, 0));
-    iter_.reset(new test::VectorIterator(ks, vs));
-    iter_->SeekToFirst();
-    c_iter_.reset(new CompactionIterator(
-        iter_.get(), cmp_, merge_helper_.get(), last_sequence, &snapshots_,
-        kMaxSequenceNumber, Env::Default(), false));
-  }
-
-  const Comparator* cmp_;
-  std::vector<SequenceNumber> snapshots_;
-  std::unique_ptr<MergeHelper> merge_helper_;
-  std::unique_ptr<test::VectorIterator> iter_;
-  std::unique_ptr<CompactionIterator> c_iter_;
-};
-
-// It is possible that the output of the compaction iterator is empty even if
-// the input is not.
-TEST_F(CompactionIteratorTest, EmptyResult) {
-  InitIterator({test::KeyStr("a", 5, kTypeSingleDeletion),
-                test::KeyStr("a", 3, kTypeValue)},
-               {"", "val"}, 5);
-  c_iter_->SeekToFirst();
-  ASSERT_FALSE(c_iter_->Valid());
-}
-
-// If there is a corruption after a single deletion, the corrupted key should
-// be preserved.
-TEST_F(CompactionIteratorTest, CorruptionAfterSingleDeletion) {
-  InitIterator({test::KeyStr("a", 5, kTypeSingleDeletion),
-                test::KeyStr("a", 3, kTypeValue, true),
-                test::KeyStr("b", 10, kTypeValue)},
-               {"", "val", "val2"}, 10);
-  c_iter_->SeekToFirst();
-  ASSERT_TRUE(c_iter_->Valid());
-  ASSERT_EQ(test::KeyStr("a", 5, kTypeSingleDeletion),
-            c_iter_->key().ToString());
-  c_iter_->Next();
-  ASSERT_TRUE(c_iter_->Valid());
-  ASSERT_EQ(test::KeyStr("a", 3, kTypeValue, true), c_iter_->key().ToString());
-  c_iter_->Next();
-  ASSERT_TRUE(c_iter_->Valid());
-  ASSERT_EQ(test::KeyStr("b", 10, kTypeValue), c_iter_->key().ToString());
-  c_iter_->Next();
-  ASSERT_FALSE(c_iter_->Valid());
-}
-
-}  // namespace rocksdb
-
-int main(int argc, char** argv) {
-  ::testing::InitGoogleTest(&argc, argv);
-  return RUN_ALL_TESTS();
-}

db/compaction_job.h

@@ -1,158 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under the BSD-style license found in the
-//  LICENSE file in the root directory of this source tree. An additional grant
-//  of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-#pragma once
-
-#include <atomic>
-#include <deque>
-#include <functional>
-#include <limits>
-#include <set>
-#include <string>
-#include <utility>
-#include <vector>
-
-#include "db/column_family.h"
-#include "db/compaction_iterator.h"
-#include "db/dbformat.h"
-#include "db/flush_scheduler.h"
-#include "db/internal_stats.h"
-#include "db/job_context.h"
-#include "db/log_writer.h"
-#include "db/memtable_list.h"
-#include "db/version_edit.h"
-#include "db/write_controller.h"
-#include "db/write_thread.h"
-#include "port/port.h"
-#include "rocksdb/compaction_filter.h"
-#include "rocksdb/compaction_job_stats.h"
-#include "rocksdb/db.h"
-#include "rocksdb/env.h"
-#include "rocksdb/memtablerep.h"
-#include "rocksdb/transaction_log.h"
-#include "table/scoped_arena_iterator.h"
-#include "util/autovector.h"
-#include "util/event_logger.h"
-#include "util/stop_watch.h"
-#include "util/thread_local.h"
-
-namespace rocksdb {
-
-class MemTable;
-class TableCache;
-class Version;
-class VersionEdit;
-class VersionSet;
-class Arena;
-
-class CompactionJob {
- public:
-  CompactionJob(int job_id, Compaction* compaction, const DBOptions& db_options,
-                const EnvOptions& env_options, VersionSet* versions,
-                std::atomic<bool>* shutting_down, LogBuffer* log_buffer,
-                Directory* db_directory, Directory* output_directory,
-                Statistics* stats, InstrumentedMutex* db_mutex,
-                Status* db_bg_error,
-                std::vector<SequenceNumber> existing_snapshots,
-                SequenceNumber earliest_write_conflict_snapshot,
-                std::shared_ptr<Cache> table_cache, EventLogger* event_logger,
-                bool paranoid_file_checks, bool measure_io_stats,
-                const std::string& dbname,
-                CompactionJobStats* compaction_job_stats);
-
-  ~CompactionJob();
-
-  // no copy/move
-  CompactionJob(CompactionJob&& job) = delete;
-  CompactionJob(const CompactionJob& job) = delete;
-  CompactionJob& operator=(const CompactionJob& job) = delete;
-
-  // REQUIRED: mutex held
-  void Prepare();
-  // REQUIRED mutex not held
-  Status Run();
-
-  // REQUIRED: mutex held
-  Status Install(const MutableCFOptions& mutable_cf_options);
-
- private:
-  struct SubcompactionState;
-
-  void AggregateStatistics();
-  void GenSubcompactionBoundaries();
-
-  // update the thread status for starting a compaction.
-  void ReportStartedCompaction(Compaction* compaction);
-  void AllocateCompactionOutputFileNumbers();
-  // Call compaction filter. Then iterate through input and compact the
-  // kv-pairs
-  void ProcessKeyValueCompaction(SubcompactionState* sub_compact);
-
-  Status FinishCompactionOutputFile(const Status& input_status,
-                                    SubcompactionState* sub_compact);
-  Status InstallCompactionResults(const MutableCFOptions& mutable_cf_options);
-  void RecordCompactionIOStats();
-  Status OpenCompactionOutputFile(SubcompactionState* sub_compact);
-  void CleanupCompaction();
-  void UpdateCompactionJobStats(
-    const InternalStats::CompactionStats& stats) const;
-  void RecordDroppedKeys(const CompactionIteratorStats& c_iter_stats,
-                         CompactionJobStats* compaction_job_stats = nullptr);
-
-  void UpdateCompactionStats();
-  void UpdateCompactionInputStatsHelper(
-      int* num_files, uint64_t* bytes_read, int input_level);
-
-  void LogCompaction();
-
-  int job_id_;
-
-  // CompactionJob state
-  struct CompactionState;
-  CompactionState* compact_;
-  CompactionJobStats* compaction_job_stats_;
-  InternalStats::CompactionStats compaction_stats_;
-
-  // DBImpl state
-  const std::string& dbname_;
-  const DBOptions& db_options_;
-  const EnvOptions& env_options_;
-  Env* env_;
-  VersionSet* versions_;
-  std::atomic<bool>* shutting_down_;
-  LogBuffer* log_buffer_;
-  Directory* db_directory_;
-  Directory* output_directory_;
-  Statistics* stats_;
-  InstrumentedMutex* db_mutex_;
-  Status* db_bg_error_;
-  // If there were two snapshots with seq numbers s1 and
-  // s2 and s1 < s2, and if we find two instances of a key k1 then lies
-  // entirely within s1 and s2, then the earlier version of k1 can be safely
-  // deleted because that version is not visible in any snapshot.
-  std::vector<SequenceNumber> existing_snapshots_;
-
-  // This is the earliest snapshot that could be used for write-conflict
-  // checking by a transaction.  For any user-key newer than this snapshot, we
-  // should make sure not to remove evidence that a write occurred.
-  SequenceNumber earliest_write_conflict_snapshot_;
-
-  std::shared_ptr<Cache> table_cache_;
-
-  EventLogger* event_logger_;
-
-  bool bottommost_level_;
-  bool paranoid_file_checks_;
-  bool measure_io_stats_;
-  // Stores the Slices that designate the boundaries for each subcompaction
-  std::vector<Slice> boundaries_;
-  // Stores the approx size of keys covered in the range of each subcompaction
-  std::vector<uint64_t> sizes_;
-};
-
-}  // namespace rocksdb

db/compaction_job_test.cc

@@ -1,929 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under the BSD-style license found in the
-//  LICENSE file in the root directory of this source tree. An additional grant
-//  of patent rights can be found in the PATENTS file in the same directory.
-
-#ifndef ROCKSDB_LITE
-
-#include <algorithm>
-#include <map>
-#include <string>
-#include <tuple>
-
-#include "db/compaction_job.h"
-#include "db/column_family.h"
-#include "db/version_set.h"
-#include "db/writebuffer.h"
-#include "rocksdb/cache.h"
-#include "rocksdb/db.h"
-#include "rocksdb/options.h"
-#include "table/mock_table.h"
-#include "util/file_reader_writer.h"
-#include "util/string_util.h"
-#include "util/testharness.h"
-#include "util/testutil.h"
-#include "utilities/merge_operators.h"
-
-namespace rocksdb {
-
-namespace {
-
-void VerifyInitializationOfCompactionJobStats(
-      const CompactionJobStats& compaction_job_stats) {
-#if !defined(IOS_CROSS_COMPILE)
-  ASSERT_EQ(compaction_job_stats.elapsed_micros, 0U);
-
-  ASSERT_EQ(compaction_job_stats.num_input_records, 0U);
-  ASSERT_EQ(compaction_job_stats.num_input_files, 0U);
-  ASSERT_EQ(compaction_job_stats.num_input_files_at_output_level, 0U);
-
-  ASSERT_EQ(compaction_job_stats.num_output_records, 0U);
-  ASSERT_EQ(compaction_job_stats.num_output_files, 0U);
-
-  ASSERT_EQ(compaction_job_stats.is_manual_compaction, true);
-
-  ASSERT_EQ(compaction_job_stats.total_input_bytes, 0U);
-  ASSERT_EQ(compaction_job_stats.total_output_bytes, 0U);
-
-  ASSERT_EQ(compaction_job_stats.total_input_raw_key_bytes, 0U);
-  ASSERT_EQ(compaction_job_stats.total_input_raw_value_bytes, 0U);
-
-  ASSERT_EQ(compaction_job_stats.smallest_output_key_prefix[0], 0);
-  ASSERT_EQ(compaction_job_stats.largest_output_key_prefix[0], 0);
-
-  ASSERT_EQ(compaction_job_stats.num_records_replaced, 0U);
-
-  ASSERT_EQ(compaction_job_stats.num_input_deletion_records, 0U);
-  ASSERT_EQ(compaction_job_stats.num_expired_deletion_records, 0U);
-
-  ASSERT_EQ(compaction_job_stats.num_corrupt_keys, 0U);
-#endif  // !defined(IOS_CROSS_COMPILE)
-}
-
-}  // namespace
-
-// TODO(icanadi) Make it simpler once we mock out VersionSet
-class CompactionJobTest : public testing::Test {
- public:
-  CompactionJobTest()
-      : env_(Env::Default()),
-        dbname_(test::TmpDir() + "/compaction_job_test"),
-        mutable_cf_options_(Options(), ImmutableCFOptions(Options())),
-        table_cache_(NewLRUCache(50000, 16)),
-        write_buffer_(db_options_.db_write_buffer_size),
-        versions_(new VersionSet(dbname_, &db_options_, env_options_,
-                                 table_cache_.get(), &write_buffer_,
-                                 &write_controller_)),
-        shutting_down_(false),
-        mock_table_factory_(new mock::MockTableFactory()) {
-    EXPECT_OK(env_->CreateDirIfMissing(dbname_));
-    db_options_.db_paths.emplace_back(dbname_,
-                                      std::numeric_limits<uint64_t>::max());
-  }
-
-  std::string GenerateFileName(uint64_t file_number) {
-    FileMetaData meta;
-    std::vector<DbPath> db_paths;
-    db_paths.emplace_back(dbname_, std::numeric_limits<uint64_t>::max());
-    meta.fd = FileDescriptor(file_number, 0, 0);
-    return TableFileName(db_paths, meta.fd.GetNumber(), meta.fd.GetPathId());
-  }
-
-  std::string KeyStr(const std::string& user_key, const SequenceNumber seq_num,
-      const ValueType t) {
-    return InternalKey(user_key, seq_num, t).Encode().ToString();
-  }
-
-  void AddMockFile(const stl_wrappers::KVMap& contents, int level = 0) {
-    assert(contents.size() > 0);
-
-    bool first_key = true;
-    std::string smallest, largest;
-    InternalKey smallest_key, largest_key;
-    SequenceNumber smallest_seqno = kMaxSequenceNumber;
-    SequenceNumber largest_seqno = 0;
-    for (auto kv : contents) {
-      ParsedInternalKey key;
-      std::string skey;
-      std::string value;
-      std::tie(skey, value) = kv;
-      ParseInternalKey(skey, &key);
-
-      smallest_seqno = std::min(smallest_seqno, key.sequence);
-      largest_seqno = std::max(largest_seqno, key.sequence);
-
-      if (first_key ||
-          cfd_->user_comparator()->Compare(key.user_key, smallest) < 0) {
-        smallest.assign(key.user_key.data(), key.user_key.size());
-        smallest_key.DecodeFrom(skey);
-      }
-      if (first_key ||
-          cfd_->user_comparator()->Compare(key.user_key, largest) > 0) {
-        largest.assign(key.user_key.data(), key.user_key.size());
-        largest_key.DecodeFrom(skey);
-      }
-
-      first_key = false;
-    }
-
-    uint64_t file_number = versions_->NewFileNumber();
-    EXPECT_OK(mock_table_factory_->CreateMockTable(
-        env_, GenerateFileName(file_number), std::move(contents)));
-
-    VersionEdit edit;
-    edit.AddFile(level, file_number, 0, 10, smallest_key, largest_key,
-        smallest_seqno, largest_seqno, false);
-
-    mutex_.Lock();
-    versions_->LogAndApply(versions_->GetColumnFamilySet()->GetDefault(),
-                           mutable_cf_options_, &edit, &mutex_);
-    mutex_.Unlock();
-  }
-
-  void SetLastSequence(const SequenceNumber sequence_number) {
-    versions_->SetLastSequence(sequence_number + 1);
-  }
-
-  // returns expected result after compaction
-  stl_wrappers::KVMap CreateTwoFiles(bool gen_corrupted_keys) {
-    auto expected_results = mock::MakeMockFile();
-    const int kKeysPerFile = 10000;
-    const int kCorruptKeysPerFile = 200;
-    const int kMatchingKeys = kKeysPerFile / 2;
-    SequenceNumber sequence_number = 0;
-
-    auto corrupt_id = [&](int id) {
-      return gen_corrupted_keys && id > 0 && id <= kCorruptKeysPerFile;
-    };
-
-    for (int i = 0; i < 2; ++i) {
-      auto contents = mock::MakeMockFile();
-      for (int k = 0; k < kKeysPerFile; ++k) {
-        auto key = ToString(i * kMatchingKeys + k);
-        auto value = ToString(i * kKeysPerFile + k);
-        InternalKey internal_key(key, ++sequence_number, kTypeValue);
-
-        // This is how the key will look like once it's written in bottommost
-        // file
-        InternalKey bottommost_internal_key(
-            key, (key == "9999") ? sequence_number : 0, kTypeValue);
-
-        if (corrupt_id(k)) {
-          test::CorruptKeyType(&internal_key);
-          test::CorruptKeyType(&bottommost_internal_key);
-        }
-        contents.insert({ internal_key.Encode().ToString(), value });
-        if (i == 1 || k < kMatchingKeys || corrupt_id(k - kMatchingKeys)) {
-          expected_results.insert(
-              { bottommost_internal_key.Encode().ToString(), value });
-        }
-      }
-
-      AddMockFile(contents);
-    }
-
-    SetLastSequence(sequence_number);
-
-    return expected_results;
-  }
-
-  void NewDB() {
-    VersionEdit new_db;
-    new_db.SetLogNumber(0);
-    new_db.SetNextFile(2);
-    new_db.SetLastSequence(0);
-
-    const std::string manifest = DescriptorFileName(dbname_, 1);
-    unique_ptr<WritableFile> file;
-    Status s = env_->NewWritableFile(
-        manifest, &file, env_->OptimizeForManifestWrite(env_options_));
-    ASSERT_OK(s);
-    unique_ptr<WritableFileWriter> file_writer(
-        new WritableFileWriter(std::move(file), env_options_));
-    {
-      log::Writer log(std::move(file_writer), 0, false);
-      std::string record;
-      new_db.EncodeTo(&record);
-      s = log.AddRecord(record);
-    }
-    ASSERT_OK(s);
-    // Make "CURRENT" file that points to the new manifest file.
-    s = SetCurrentFile(env_, dbname_, 1, nullptr);
-
-    std::vector<ColumnFamilyDescriptor> column_families;
-    cf_options_.table_factory = mock_table_factory_;
-    cf_options_.merge_operator = merge_op_;
-    cf_options_.compaction_filter = compaction_filter_.get();
-    column_families.emplace_back(kDefaultColumnFamilyName, cf_options_);
-
-    EXPECT_OK(versions_->Recover(column_families, false));
-    cfd_ = versions_->GetColumnFamilySet()->GetDefault();
-  }
-
-  void RunCompaction(
-      const std::vector<std::vector<FileMetaData*>>& input_files,
-      const stl_wrappers::KVMap& expected_results,
-      const std::vector<SequenceNumber>& snapshots = {},
-      SequenceNumber earliest_write_conflict_snapshot = kMaxSequenceNumber) {
-    auto cfd = versions_->GetColumnFamilySet()->GetDefault();
-
-    size_t num_input_files = 0;
-    std::vector<CompactionInputFiles> compaction_input_files;
-    for (size_t level = 0; level < input_files.size(); level++) {
-      auto level_files = input_files[level];
-      CompactionInputFiles compaction_level;
-      compaction_level.level = static_cast<int>(level);
-      compaction_level.files.insert(compaction_level.files.end(),
-          level_files.begin(), level_files.end());
-      compaction_input_files.push_back(compaction_level);
-      num_input_files += level_files.size();
-    }
-
-    Compaction compaction(cfd->current()->storage_info(),
-                          *cfd->GetLatestMutableCFOptions(),
-                          compaction_input_files, 1, 1024 * 1024, 10, 0,
-                          kNoCompression, {}, true);
-    compaction.SetInputVersion(cfd->current());
-
-    LogBuffer log_buffer(InfoLogLevel::INFO_LEVEL, db_options_.info_log.get());
-    mutex_.Lock();
-    EventLogger event_logger(db_options_.info_log.get());
-    CompactionJob compaction_job(
-        0, &compaction, db_options_, env_options_, versions_.get(),
-        &shutting_down_, &log_buffer, nullptr, nullptr, nullptr, &mutex_,
-        &bg_error_, snapshots, earliest_write_conflict_snapshot, table_cache_,
-        &event_logger, false, false, dbname_, &compaction_job_stats_);
-
-    VerifyInitializationOfCompactionJobStats(compaction_job_stats_);
-
-    compaction_job.Prepare();
-    mutex_.Unlock();
-    Status s;
-    s = compaction_job.Run();
-    ASSERT_OK(s);
-    mutex_.Lock();
-    ASSERT_OK(compaction_job.Install(*cfd->GetLatestMutableCFOptions()));
-    mutex_.Unlock();
-
-    if (expected_results.size() == 0) {
-      ASSERT_GE(compaction_job_stats_.elapsed_micros, 0U);
-      ASSERT_EQ(compaction_job_stats_.num_input_files, num_input_files);
-      ASSERT_EQ(compaction_job_stats_.num_output_files, 0U);
-    } else {
-      ASSERT_GE(compaction_job_stats_.elapsed_micros, 0U);
-      ASSERT_EQ(compaction_job_stats_.num_input_files, num_input_files);
-      ASSERT_EQ(compaction_job_stats_.num_output_files, 1U);
-      mock_table_factory_->AssertLatestFile(expected_results);
-    }
-  }
-
-  Env* env_;
-  std::string dbname_;
-  EnvOptions env_options_;
-  MutableCFOptions mutable_cf_options_;
-  std::shared_ptr<Cache> table_cache_;
-  WriteController write_controller_;
-  DBOptions db_options_;
-  ColumnFamilyOptions cf_options_;
-  WriteBuffer write_buffer_;
-  std::unique_ptr<VersionSet> versions_;
-  InstrumentedMutex mutex_;
-  std::atomic<bool> shutting_down_;
-  std::shared_ptr<mock::MockTableFactory> mock_table_factory_;
-  CompactionJobStats compaction_job_stats_;
-  ColumnFamilyData* cfd_;
-  std::unique_ptr<CompactionFilter> compaction_filter_;
-  std::shared_ptr<MergeOperator> merge_op_;
-  Status bg_error_;
-};
-
-TEST_F(CompactionJobTest, Simple) {
-  NewDB();
-
-  auto expected_results = CreateTwoFiles(false);
-  auto cfd = versions_->GetColumnFamilySet()->GetDefault();
-  auto files = cfd->current()->storage_info()->LevelFiles(0);
-  ASSERT_EQ(2U, files.size());
-  RunCompaction({ files }, expected_results);
-}
-
-TEST_F(CompactionJobTest, SimpleCorrupted) {
-  NewDB();
-
-  auto expected_results = CreateTwoFiles(true);
-  auto cfd = versions_->GetColumnFamilySet()->GetDefault();
-  auto files = cfd->current()->storage_info()->LevelFiles(0);
-  RunCompaction({files}, expected_results);
-  ASSERT_EQ(compaction_job_stats_.num_corrupt_keys, 400U);
-}
-
-TEST_F(CompactionJobTest, SimpleDeletion) {
-  NewDB();
-
-  auto file1 = mock::MakeMockFile({{KeyStr("c", 4U, kTypeDeletion), ""},
-                                   {KeyStr("c", 3U, kTypeValue), "val"}});
-  AddMockFile(file1);
-
-  auto file2 = mock::MakeMockFile({{KeyStr("b", 2U, kTypeValue), "val"},
-                                   {KeyStr("b", 1U, kTypeValue), "val"}});
-  AddMockFile(file2);
-
-  auto expected_results =
-      mock::MakeMockFile({{KeyStr("b", 0U, kTypeValue), "val"}});
-
-  SetLastSequence(4U);
-  auto files = cfd_->current()->storage_info()->LevelFiles(0);
-  RunCompaction({files}, expected_results);
-}
-
-TEST_F(CompactionJobTest, SimpleOverwrite) {
-  NewDB();
-
-  auto file1 = mock::MakeMockFile({
-      {KeyStr("a", 3U, kTypeValue), "val2"},
-      {KeyStr("b", 4U, kTypeValue), "val3"},
-  });
-  AddMockFile(file1);
-
-  auto file2 = mock::MakeMockFile({{KeyStr("a", 1U, kTypeValue), "val"},
-                                   {KeyStr("b", 2U, kTypeValue), "val"}});
-  AddMockFile(file2);
-
-  auto expected_results =
-      mock::MakeMockFile({{KeyStr("a", 0U, kTypeValue), "val2"},
-                          {KeyStr("b", 4U, kTypeValue), "val3"}});
-
-  SetLastSequence(4U);
-  auto files = cfd_->current()->storage_info()->LevelFiles(0);
-  RunCompaction({files}, expected_results);
-}
-
-TEST_F(CompactionJobTest, SimpleNonLastLevel) {
-  NewDB();
-
-  auto file1 = mock::MakeMockFile({
-      {KeyStr("a", 5U, kTypeValue), "val2"},
-      {KeyStr("b", 6U, kTypeValue), "val3"},
-  });
-  AddMockFile(file1);
-
-  auto file2 = mock::MakeMockFile({{KeyStr("a", 3U, kTypeValue), "val"},
-                                   {KeyStr("b", 4U, kTypeValue), "val"}});
-  AddMockFile(file2, 1);
-
-  auto file3 = mock::MakeMockFile({{KeyStr("a", 1U, kTypeValue), "val"},
-                                   {KeyStr("b", 2U, kTypeValue), "val"}});
-  AddMockFile(file3, 2);
-
-  // Because level 1 is not the last level, the sequence numbers of a and b
-  // cannot be set to 0
-  auto expected_results =
-      mock::MakeMockFile({{KeyStr("a", 5U, kTypeValue), "val2"},
-                          {KeyStr("b", 6U, kTypeValue), "val3"}});
-
-  SetLastSequence(6U);
-  auto lvl0_files = cfd_->current()->storage_info()->LevelFiles(0);
-  auto lvl1_files = cfd_->current()->storage_info()->LevelFiles(1);
-  RunCompaction({lvl0_files, lvl1_files}, expected_results);
-}
-
-TEST_F(CompactionJobTest, SimpleMerge) {
-  merge_op_ = MergeOperators::CreateStringAppendOperator();
-  NewDB();
-
-  auto file1 = mock::MakeMockFile({
-      {KeyStr("a", 5U, kTypeMerge), "5"},
-      {KeyStr("a", 4U, kTypeMerge), "4"},
-      {KeyStr("a", 3U, kTypeValue), "3"},
-  });
-  AddMockFile(file1);
-
-  auto file2 = mock::MakeMockFile(
-      {{KeyStr("b", 2U, kTypeMerge), "2"}, {KeyStr("b", 1U, kTypeValue), "1"}});
-  AddMockFile(file2);
-
-  auto expected_results =
-      mock::MakeMockFile({{KeyStr("a", 0U, kTypeValue), "3,4,5"},
-                          {KeyStr("b", 2U, kTypeValue), "1,2"}});
-
-  SetLastSequence(5U);
-  auto files = cfd_->current()->storage_info()->LevelFiles(0);
-  RunCompaction({files}, expected_results);
-}
-
-TEST_F(CompactionJobTest, NonAssocMerge) {
-  merge_op_ = MergeOperators::CreateStringAppendTESTOperator();
-  NewDB();
-
-  auto file1 = mock::MakeMockFile({
-      {KeyStr("a", 5U, kTypeMerge), "5"},
-      {KeyStr("a", 4U, kTypeMerge), "4"},
-      {KeyStr("a", 3U, kTypeMerge), "3"},
-  });
-  AddMockFile(file1);
-
-  auto file2 = mock::MakeMockFile(
-      {{KeyStr("b", 2U, kTypeMerge), "2"}, {KeyStr("b", 1U, kTypeMerge), "1"}});
-  AddMockFile(file2);
-
-  auto expected_results =
-      mock::MakeMockFile({{KeyStr("a", 0U, kTypeValue), "3,4,5"},
-                          {KeyStr("b", 2U, kTypeMerge), "2"},
-                          {KeyStr("b", 1U, kTypeMerge), "1"}});
-
-  SetLastSequence(5U);
-  auto files = cfd_->current()->storage_info()->LevelFiles(0);
-  RunCompaction({files}, expected_results);
-}
-
-// Filters merge operands with value 10.
-TEST_F(CompactionJobTest, MergeOperandFilter) {
-  merge_op_ = MergeOperators::CreateUInt64AddOperator();
-  compaction_filter_.reset(new test::FilterNumber(10U));
-  NewDB();
-
-  auto file1 = mock::MakeMockFile(
-      {{KeyStr("a", 5U, kTypeMerge), test::EncodeInt(5U)},
-       {KeyStr("a", 4U, kTypeMerge), test::EncodeInt(10U)},  // Filtered
-       {KeyStr("a", 3U, kTypeMerge), test::EncodeInt(3U)}});
-  AddMockFile(file1);
-
-  auto file2 = mock::MakeMockFile({
-      {KeyStr("b", 2U, kTypeMerge), test::EncodeInt(2U)},
-      {KeyStr("b", 1U, kTypeMerge), test::EncodeInt(10U)}  // Filtered
-  });
-  AddMockFile(file2);
-
-  auto expected_results =
-      mock::MakeMockFile({{KeyStr("a", 0U, kTypeValue), test::EncodeInt(8U)},
-                          {KeyStr("b", 2U, kTypeMerge), test::EncodeInt(2U)}});
-
-  SetLastSequence(5U);
-  auto files = cfd_->current()->storage_info()->LevelFiles(0);
-  RunCompaction({files}, expected_results);
-}
-
-TEST_F(CompactionJobTest, FilterSomeMergeOperands) {
-  merge_op_ = MergeOperators::CreateUInt64AddOperator();
-  compaction_filter_.reset(new test::FilterNumber(10U));
-  NewDB();
-
-  auto file1 = mock::MakeMockFile(
-      {{KeyStr("a", 5U, kTypeMerge), test::EncodeInt(5U)},
-       {KeyStr("a", 4U, kTypeMerge), test::EncodeInt(10U)},  // Filtered
-       {KeyStr("a", 3U, kTypeValue), test::EncodeInt(5U)},
-       {KeyStr("d", 8U, kTypeMerge), test::EncodeInt(10U)}});
-  AddMockFile(file1);
-
-  auto file2 =
-      mock::MakeMockFile({{KeyStr("b", 2U, kTypeMerge), test::EncodeInt(10U)},
-                          {KeyStr("b", 1U, kTypeMerge), test::EncodeInt(10U)},
-                          {KeyStr("c", 2U, kTypeMerge), test::EncodeInt(3U)},
-                          {KeyStr("c", 1U, kTypeValue), test::EncodeInt(7U)},
-                          {KeyStr("d", 1U, kTypeValue), test::EncodeInt(6U)}});
-  AddMockFile(file2);
-
-  auto file3 =
-      mock::MakeMockFile({{KeyStr("a", 1U, kTypeMerge), test::EncodeInt(3U)}});
-  AddMockFile(file3, 2);
-
-  auto expected_results = mock::MakeMockFile({
-      {KeyStr("a", 5U, kTypeValue), test::EncodeInt(10U)},
-      {KeyStr("c", 2U, kTypeValue), test::EncodeInt(10U)},
-      {KeyStr("d", 1U, kTypeValue), test::EncodeInt(6U)}
-      // b does not appear because the operands are filtered
-  });
-
-  SetLastSequence(5U);
-  auto files = cfd_->current()->storage_info()->LevelFiles(0);
-  RunCompaction({files}, expected_results);
-}
-
-// Test where all operands/merge results are filtered out.
-TEST_F(CompactionJobTest, FilterAllMergeOperands) {
-  merge_op_ = MergeOperators::CreateUInt64AddOperator();
-  compaction_filter_.reset(new test::FilterNumber(10U));
-  NewDB();
-
-  auto file1 =
-      mock::MakeMockFile({{KeyStr("a", 11U, kTypeMerge), test::EncodeInt(10U)},
-                          {KeyStr("a", 10U, kTypeMerge), test::EncodeInt(10U)},
-                          {KeyStr("a", 9U, kTypeMerge), test::EncodeInt(10U)}});
-  AddMockFile(file1);
-
-  auto file2 =
-      mock::MakeMockFile({{KeyStr("b", 8U, kTypeMerge), test::EncodeInt(10U)},
-                          {KeyStr("b", 7U, kTypeMerge), test::EncodeInt(10U)},
-                          {KeyStr("b", 6U, kTypeMerge), test::EncodeInt(10U)},
-                          {KeyStr("b", 5U, kTypeMerge), test::EncodeInt(10U)},
-                          {KeyStr("b", 4U, kTypeMerge), test::EncodeInt(10U)},
-                          {KeyStr("b", 3U, kTypeMerge), test::EncodeInt(10U)},
-                          {KeyStr("b", 2U, kTypeMerge), test::EncodeInt(10U)},
-                          {KeyStr("c", 2U, kTypeMerge), test::EncodeInt(10U)},
-                          {KeyStr("c", 1U, kTypeMerge), test::EncodeInt(10U)}});
-  AddMockFile(file2);
-
-  auto file3 =
-      mock::MakeMockFile({{KeyStr("a", 2U, kTypeMerge), test::EncodeInt(10U)},
-                          {KeyStr("b", 1U, kTypeMerge), test::EncodeInt(10U)}});
-  AddMockFile(file3, 2);
-
-  SetLastSequence(11U);
-  auto files = cfd_->current()->storage_info()->LevelFiles(0);
-
-  stl_wrappers::KVMap empty_map;
-  RunCompaction({files}, empty_map);
-}
-
-TEST_F(CompactionJobTest, SimpleSingleDelete) {
-  NewDB();
-
-  auto file1 = mock::MakeMockFile({
-      {KeyStr("a", 5U, kTypeDeletion), ""},
-      {KeyStr("b", 6U, kTypeSingleDeletion), ""},
-  });
-  AddMockFile(file1);
-
-  auto file2 = mock::MakeMockFile({{KeyStr("a", 3U, kTypeValue), "val"},
-                                   {KeyStr("b", 4U, kTypeValue), "val"}});
-  AddMockFile(file2);
-
-  auto file3 = mock::MakeMockFile({
-      {KeyStr("a", 1U, kTypeValue), "val"},
-  });
-  AddMockFile(file3, 2);
-
-  auto expected_results =
-      mock::MakeMockFile({{KeyStr("a", 5U, kTypeDeletion), ""}});
-
-  SetLastSequence(6U);
-  auto files = cfd_->current()->storage_info()->LevelFiles(0);
-  RunCompaction({files}, expected_results);
-}
-
-TEST_F(CompactionJobTest, SingleDeleteSnapshots) {
-  NewDB();
-
-  auto file1 = mock::MakeMockFile({
-      {KeyStr("A", 12U, kTypeSingleDeletion), ""},
-      {KeyStr("a", 12U, kTypeSingleDeletion), ""},
-      {KeyStr("b", 21U, kTypeSingleDeletion), ""},
-      {KeyStr("c", 22U, kTypeSingleDeletion), ""},
-      {KeyStr("d", 9U, kTypeSingleDeletion), ""},
-      {KeyStr("f", 21U, kTypeSingleDeletion), ""},
-      {KeyStr("j", 11U, kTypeSingleDeletion), ""},
-      {KeyStr("j", 9U, kTypeSingleDeletion), ""},
-      {KeyStr("k", 12U, kTypeSingleDeletion), ""},
-      {KeyStr("k", 11U, kTypeSingleDeletion), ""},
-      {KeyStr("l", 3U, kTypeSingleDeletion), ""},
-      {KeyStr("l", 2U, kTypeSingleDeletion), ""},
-  });
-  AddMockFile(file1);
-
-  auto file2 = mock::MakeMockFile({
-      {KeyStr("0", 2U, kTypeSingleDeletion), ""},
-      {KeyStr("a", 11U, kTypeValue), "val1"},
-      {KeyStr("b", 11U, kTypeValue), "val2"},
-      {KeyStr("c", 21U, kTypeValue), "val3"},
-      {KeyStr("d", 8U, kTypeValue), "val4"},
-      {KeyStr("e", 2U, kTypeSingleDeletion), ""},
-      {KeyStr("f", 1U, kTypeValue), "val1"},
-      {KeyStr("g", 11U, kTypeSingleDeletion), ""},
-      {KeyStr("h", 2U, kTypeSingleDeletion), ""},
-      {KeyStr("m", 12U, kTypeValue), "val1"},
-      {KeyStr("m", 11U, kTypeSingleDeletion), ""},
-      {KeyStr("m", 8U, kTypeValue), "val2"},
-  });
-  AddMockFile(file2);
-
-  auto file3 = mock::MakeMockFile({
-      {KeyStr("A", 1U, kTypeValue), "val"},
-      {KeyStr("e", 1U, kTypeValue), "val"},
-  });
-  AddMockFile(file3, 2);
-
-  auto expected_results = mock::MakeMockFile({
-      {KeyStr("A", 12U, kTypeSingleDeletion), ""},
-      {KeyStr("a", 12U, kTypeSingleDeletion), ""},
-      {KeyStr("a", 11U, kTypeValue), ""},
-      {KeyStr("b", 21U, kTypeSingleDeletion), ""},
-      {KeyStr("b", 11U, kTypeValue), "val2"},
-      {KeyStr("c", 22U, kTypeSingleDeletion), ""},
-      {KeyStr("c", 21U, kTypeValue), ""},
-      {KeyStr("e", 2U, kTypeSingleDeletion), ""},
-      {KeyStr("f", 21U, kTypeSingleDeletion), ""},
-      {KeyStr("f", 1U, kTypeValue), "val1"},
-      {KeyStr("g", 11U, kTypeSingleDeletion), ""},
-      {KeyStr("j", 11U, kTypeSingleDeletion), ""},
-      {KeyStr("k", 11U, kTypeSingleDeletion), ""},
-      {KeyStr("m", 12U, kTypeValue), "val1"},
-      {KeyStr("m", 11U, kTypeSingleDeletion), ""},
-      {KeyStr("m", 8U, kTypeValue), "val2"},
-  });
-
-  SetLastSequence(22U);
-  auto files = cfd_->current()->storage_info()->LevelFiles(0);
-  RunCompaction({files}, expected_results, {10U, 20U}, 10U);
-}
-
-TEST_F(CompactionJobTest, EarliestWriteConflictSnapshot) {
-  NewDB();
-
-  // Test multiple snapshots where the earliest snapshot is not a
-  // write-conflic-snapshot.
-
-  auto file1 = mock::MakeMockFile({
-      {KeyStr("A", 24U, kTypeSingleDeletion), ""},
-      {KeyStr("A", 23U, kTypeValue), "val"},
-      {KeyStr("B", 24U, kTypeSingleDeletion), ""},
-      {KeyStr("B", 23U, kTypeValue), "val"},
-      {KeyStr("D", 24U, kTypeSingleDeletion), ""},
-      {KeyStr("G", 32U, kTypeSingleDeletion), ""},
-      {KeyStr("G", 31U, kTypeValue), "val"},
-      {KeyStr("G", 24U, kTypeSingleDeletion), ""},
-      {KeyStr("G", 23U, kTypeValue), "val2"},
-      {KeyStr("H", 31U, kTypeValue), "val"},
-      {KeyStr("H", 24U, kTypeSingleDeletion), ""},
-      {KeyStr("H", 23U, kTypeValue), "val"},
-      {KeyStr("I", 35U, kTypeSingleDeletion), ""},
-      {KeyStr("I", 34U, kTypeValue), "val2"},
-      {KeyStr("I", 33U, kTypeSingleDeletion), ""},
-      {KeyStr("I", 32U, kTypeValue), "val3"},
-      {KeyStr("I", 31U, kTypeSingleDeletion), ""},
-      {KeyStr("J", 34U, kTypeValue), "val"},
-      {KeyStr("J", 33U, kTypeSingleDeletion), ""},
-      {KeyStr("J", 25U, kTypeValue), "val2"},
-      {KeyStr("J", 24U, kTypeSingleDeletion), ""},
-  });
-  AddMockFile(file1);
-
-  auto file2 = mock::MakeMockFile({
-      {KeyStr("A", 14U, kTypeSingleDeletion), ""},
-      {KeyStr("A", 13U, kTypeValue), "val2"},
-      {KeyStr("C", 14U, kTypeSingleDeletion), ""},
-      {KeyStr("C", 13U, kTypeValue), "val"},
-      {KeyStr("E", 12U, kTypeSingleDeletion), ""},
-      {KeyStr("F", 4U, kTypeSingleDeletion), ""},
-      {KeyStr("F", 3U, kTypeValue), "val"},
-      {KeyStr("G", 14U, kTypeSingleDeletion), ""},
-      {KeyStr("G", 13U, kTypeValue), "val3"},
-      {KeyStr("H", 14U, kTypeSingleDeletion), ""},
-      {KeyStr("H", 13U, kTypeValue), "val2"},
-      {KeyStr("I", 13U, kTypeValue), "val4"},
-      {KeyStr("I", 12U, kTypeSingleDeletion), ""},
-      {KeyStr("I", 11U, kTypeValue), "val5"},
-      {KeyStr("J", 15U, kTypeValue), "val3"},
-      {KeyStr("J", 14U, kTypeSingleDeletion), ""},
-  });
-  AddMockFile(file2);
-
-  auto expected_results = mock::MakeMockFile({
-      {KeyStr("A", 24U, kTypeSingleDeletion), ""},
-      {KeyStr("A", 23U, kTypeValue), ""},
-      {KeyStr("B", 24U, kTypeSingleDeletion), ""},
-      {KeyStr("B", 23U, kTypeValue), ""},
-      {KeyStr("D", 24U, kTypeSingleDeletion), ""},
-      {KeyStr("E", 12U, kTypeSingleDeletion), ""},
-      {KeyStr("G", 32U, kTypeSingleDeletion), ""},
-      {KeyStr("G", 31U, kTypeValue), ""},
-      {KeyStr("H", 31U, kTypeValue), "val"},
-      {KeyStr("I", 35U, kTypeSingleDeletion), ""},
-      {KeyStr("I", 34U, kTypeValue), ""},
-      {KeyStr("I", 31U, kTypeSingleDeletion), ""},
-      {KeyStr("I", 13U, kTypeValue), "val4"},
-      {KeyStr("J", 34U, kTypeValue), "val"},
-      {KeyStr("J", 33U, kTypeSingleDeletion), ""},
-      {KeyStr("J", 25U, kTypeValue), "val2"},
-      {KeyStr("J", 24U, kTypeSingleDeletion), ""},
-      {KeyStr("J", 15U, kTypeValue), "val3"},
-      {KeyStr("J", 14U, kTypeSingleDeletion), ""},
-  });
-
-  SetLastSequence(24U);
-  auto files = cfd_->current()->storage_info()->LevelFiles(0);
-  RunCompaction({files}, expected_results, {10U, 20U, 30U}, 20U);
-}
-
-TEST_F(CompactionJobTest, SingleDeleteZeroSeq) {
-  NewDB();
-
-  auto file1 = mock::MakeMockFile({
-      {KeyStr("A", 10U, kTypeSingleDeletion), ""},
-      {KeyStr("dummy", 5U, kTypeValue), "val2"},
-  });
-  AddMockFile(file1);
-
-  auto file2 = mock::MakeMockFile({
-      {KeyStr("A", 0U, kTypeValue), "val"},
-  });
-  AddMockFile(file2);
-
-  auto expected_results = mock::MakeMockFile({
-      {KeyStr("dummy", 5U, kTypeValue), "val2"},
-  });
-
-  SetLastSequence(22U);
-  auto files = cfd_->current()->storage_info()->LevelFiles(0);
-  RunCompaction({files}, expected_results, {});
-}
-
-TEST_F(CompactionJobTest, MultiSingleDelete) {
-  // Tests three scenarios involving multiple single delete/put pairs:
-  //
-  // A: Put Snapshot SDel Put SDel -> Put Snapshot SDel
-  // B: Snapshot Put SDel Put SDel Snapshot -> Snapshot SDel Snapshot
-  // C: SDel Put SDel Snapshot Put -> Snapshot Put
-  // D: (Put) SDel Snapshot Put SDel -> (Put) SDel Snapshot SDel
-  // E: Put SDel Snapshot Put SDel -> Snapshot SDel
-  // F: Put SDel Put Sdel Snapshot -> removed
-  // G: Snapshot SDel Put SDel Put -> Snapshot Put SDel
-  // H: (Put) Put SDel Put Sdel Snapshot -> Removed
-  // I: (Put) Snapshot Put SDel Put SDel -> SDel
-  // J: Put Put SDel Put SDel SDel Snapshot Put Put SDel SDel Put
-  //      -> Snapshot Put
-  // K: SDel SDel Put SDel Put Put Snapshot SDel Put SDel SDel Put SDel
-  //      -> Snapshot Put Snapshot SDel
-  // L: SDel Put Del Put SDel Snapshot Del Put Del SDel Put SDel
-  //      -> Snapshot SDel
-  // M: (Put) SDel Put Del Put SDel Snapshot Put Del SDel Put SDel Del
-  //      -> SDel Snapshot Del
-  NewDB();
-
-  auto file1 = mock::MakeMockFile({
-      {KeyStr("A", 14U, kTypeSingleDeletion), ""},
-      {KeyStr("A", 13U, kTypeValue), "val5"},
-      {KeyStr("A", 12U, kTypeSingleDeletion), ""},
-      {KeyStr("B", 14U, kTypeSingleDeletion), ""},
-      {KeyStr("B", 13U, kTypeValue), "val2"},
-      {KeyStr("C", 14U, kTypeValue), "val3"},
-      {KeyStr("D", 12U, kTypeSingleDeletion), ""},
-      {KeyStr("D", 11U, kTypeValue), "val4"},
-      {KeyStr("G", 15U, kTypeValue), "val"},
-      {KeyStr("G", 14U, kTypeSingleDeletion), ""},
-      {KeyStr("G", 13U, kTypeValue), "val"},
-      {KeyStr("I", 14U, kTypeSingleDeletion), ""},
-      {KeyStr("I", 13U, kTypeValue), "val"},
-      {KeyStr("J", 15U, kTypeValue), "val"},
-      {KeyStr("J", 14U, kTypeSingleDeletion), ""},
-      {KeyStr("J", 13U, kTypeSingleDeletion), ""},
-      {KeyStr("J", 12U, kTypeValue), "val"},
-      {KeyStr("J", 11U, kTypeValue), "val"},
-      {KeyStr("K", 16U, kTypeSingleDeletion), ""},
-      {KeyStr("K", 15U, kTypeValue), "val1"},
-      {KeyStr("K", 14U, kTypeSingleDeletion), ""},
-      {KeyStr("K", 13U, kTypeSingleDeletion), ""},
-      {KeyStr("K", 12U, kTypeValue), "val2"},
-      {KeyStr("K", 11U, kTypeSingleDeletion), ""},
-      {KeyStr("L", 16U, kTypeSingleDeletion), ""},
-      {KeyStr("L", 15U, kTypeValue), "val"},
-      {KeyStr("L", 14U, kTypeSingleDeletion), ""},
-      {KeyStr("L", 13U, kTypeDeletion), ""},
-      {KeyStr("L", 12U, kTypeValue), "val"},
-      {KeyStr("L", 11U, kTypeDeletion), ""},
-      {KeyStr("M", 16U, kTypeDeletion), ""},
-      {KeyStr("M", 15U, kTypeSingleDeletion), ""},
-      {KeyStr("M", 14U, kTypeValue), "val"},
-      {KeyStr("M", 13U, kTypeSingleDeletion), ""},
-      {KeyStr("M", 12U, kTypeDeletion), ""},
-      {KeyStr("M", 11U, kTypeValue), "val"},
-  });
-  AddMockFile(file1);
-
-  auto file2 = mock::MakeMockFile({
-      {KeyStr("A", 10U, kTypeValue), "val"},
-      {KeyStr("B", 12U, kTypeSingleDeletion), ""},
-      {KeyStr("B", 11U, kTypeValue), "val2"},
-      {KeyStr("C", 10U, kTypeSingleDeletion), ""},
-      {KeyStr("C", 9U, kTypeValue), "val6"},
-      {KeyStr("C", 8U, kTypeSingleDeletion), ""},
-      {KeyStr("D", 10U, kTypeSingleDeletion), ""},
-      {KeyStr("E", 12U, kTypeSingleDeletion), ""},
-      {KeyStr("E", 11U, kTypeValue), "val"},
-      {KeyStr("E", 5U, kTypeSingleDeletion), ""},
-      {KeyStr("E", 4U, kTypeValue), "val"},
-      {KeyStr("F", 6U, kTypeSingleDeletion), ""},
-      {KeyStr("F", 5U, kTypeValue), "val"},
-      {KeyStr("F", 4U, kTypeSingleDeletion), ""},
-      {KeyStr("F", 3U, kTypeValue), "val"},
-      {KeyStr("G", 12U, kTypeSingleDeletion), ""},
-      {KeyStr("H", 6U, kTypeSingleDeletion), ""},
-      {KeyStr("H", 5U, kTypeValue), "val"},
-      {KeyStr("H", 4U, kTypeSingleDeletion), ""},
-      {KeyStr("H", 3U, kTypeValue), "val"},
-      {KeyStr("I", 12U, kTypeSingleDeletion), ""},
-      {KeyStr("I", 11U, kTypeValue), "val"},
-      {KeyStr("J", 6U, kTypeSingleDeletion), ""},
-      {KeyStr("J", 5U, kTypeSingleDeletion), ""},
-      {KeyStr("J", 4U, kTypeValue), "val"},
-      {KeyStr("J", 3U, kTypeSingleDeletion), ""},
-      {KeyStr("J", 2U, kTypeValue), "val"},
-      {KeyStr("K", 8U, kTypeValue), "val3"},
-      {KeyStr("K", 7U, kTypeValue), "val4"},
-      {KeyStr("K", 6U, kTypeSingleDeletion), ""},
-      {KeyStr("K", 5U, kTypeValue), "val5"},
-      {KeyStr("K", 2U, kTypeSingleDeletion), ""},
-      {KeyStr("K", 1U, kTypeSingleDeletion), ""},
-      {KeyStr("L", 5U, kTypeSingleDeletion), ""},
-      {KeyStr("L", 4U, kTypeValue), "val"},
-      {KeyStr("L", 3U, kTypeDeletion), ""},
-      {KeyStr("L", 2U, kTypeValue), "val"},
-      {KeyStr("L", 1U, kTypeSingleDeletion), ""},
-      {KeyStr("M", 10U, kTypeSingleDeletion), ""},
-      {KeyStr("M", 7U, kTypeValue), "val"},
-      {KeyStr("M", 5U, kTypeDeletion), ""},
-      {KeyStr("M", 4U, kTypeValue), "val"},
-      {KeyStr("M", 3U, kTypeSingleDeletion), ""},
-  });
-  AddMockFile(file2);
-
-  auto file3 = mock::MakeMockFile({
-      {KeyStr("D", 1U, kTypeValue), "val"},
-      {KeyStr("H", 1U, kTypeValue), "val"},
-      {KeyStr("I", 2U, kTypeValue), "val"},
-  });
-  AddMockFile(file3, 2);
-
-  auto file4 = mock::MakeMockFile({
-      {KeyStr("M", 1U, kTypeValue), "val"},
-  });
-  AddMockFile(file4, 2);
-
-  auto expected_results =
-      mock::MakeMockFile({{KeyStr("A", 14U, kTypeSingleDeletion), ""},
-                          {KeyStr("A", 13U, kTypeValue), ""},
-                          {KeyStr("A", 12U, kTypeSingleDeletion), ""},
-                          {KeyStr("A", 10U, kTypeValue), "val"},
-                          {KeyStr("B", 14U, kTypeSingleDeletion), ""},
-                          {KeyStr("B", 13U, kTypeValue), ""},
-                          {KeyStr("C", 14U, kTypeValue), "val3"},
-                          {KeyStr("D", 12U, kTypeSingleDeletion), ""},
-                          {KeyStr("D", 11U, kTypeValue), ""},
-                          {KeyStr("D", 10U, kTypeSingleDeletion), ""},
-                          {KeyStr("E", 12U, kTypeSingleDeletion), ""},
-                          {KeyStr("E", 11U, kTypeValue), ""},
-                          {KeyStr("G", 15U, kTypeValue), "val"},
-                          {KeyStr("G", 12U, kTypeSingleDeletion), ""},
-                          {KeyStr("I", 14U, kTypeSingleDeletion), ""},
-                          {KeyStr("I", 13U, kTypeValue), ""},
-                          {KeyStr("J", 15U, kTypeValue), "val"},
-                          {KeyStr("K", 16U, kTypeSingleDeletion), ""},
-                          {KeyStr("K", 15U, kTypeValue), ""},
-                          {KeyStr("K", 11U, kTypeSingleDeletion), ""},
-                          {KeyStr("K", 8U, kTypeValue), "val3"},
-                          {KeyStr("L", 16U, kTypeSingleDeletion), ""},
-                          {KeyStr("L", 15U, kTypeValue), ""},
-                          {KeyStr("M", 16U, kTypeDeletion), ""},
-                          {KeyStr("M", 3U, kTypeSingleDeletion), ""}});
-
-  SetLastSequence(22U);
-  auto files = cfd_->current()->storage_info()->LevelFiles(0);
-  RunCompaction({files}, expected_results, {10U}, 10U);
-}
-
-// This test documents the behavior where a corrupt key follows a deletion or a
-// single deletion and the (single) deletion gets removed while the corrupt key
-// gets written out. TODO(noetzli): We probably want a better way to treat
-// corrupt keys.
-TEST_F(CompactionJobTest, CorruptionAfterDeletion) {
-  NewDB();
-
-  auto file1 =
-      mock::MakeMockFile({{test::KeyStr("A", 6U, kTypeValue), "val3"},
-                          {test::KeyStr("a", 5U, kTypeDeletion), ""},
-                          {test::KeyStr("a", 4U, kTypeValue, true), "val"}});
-  AddMockFile(file1);
-
-  auto file2 =
-      mock::MakeMockFile({{test::KeyStr("b", 3U, kTypeSingleDeletion), ""},
-                          {test::KeyStr("b", 2U, kTypeValue, true), "val"},
-                          {test::KeyStr("c", 1U, kTypeValue), "val2"}});
-  AddMockFile(file2);
-
-  auto expected_results =
-      mock::MakeMockFile({{test::KeyStr("A", 0U, kTypeValue), "val3"},
-                          {test::KeyStr("a", 0U, kTypeValue, true), "val"},
-                          {test::KeyStr("b", 0U, kTypeValue, true), "val"},
-                          {test::KeyStr("c", 1U, kTypeValue), "val2"}});
-
-  SetLastSequence(6U);
-  auto files = cfd_->current()->storage_info()->LevelFiles(0);
-  RunCompaction({files}, expected_results);
-}
-
-}  // namespace rocksdb
-
-int main(int argc, char** argv) {
-  ::testing::InitGoogleTest(&argc, argv);
-  return RUN_ALL_TESTS();
-}
-
-#else
-#include <stdio.h>
-
-int main(int argc, char** argv) {
-  fprintf(stderr,
-          "SKIPPED as CompactionJobStats is not supported in ROCKSDB_LITE\n");
-  return 0;
-}
-
-#endif  // ROCKSDB_LITE

db/compaction_picker.h

@@ -1,4 +1,4 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+//  Copyright (c) 2013, Facebook, Inc.  All rights reserved.
 //  This source code is licensed under the BSD-style license found in the
 //  LICENSE file in the root directory of this source tree. An additional grant
 //  of patent rights can be found in the PATENTS file in the same directory.
@@ -8,27 +8,22 @@
 // found in the LICENSE file. See the AUTHORS file for names of contributors.
 
 #pragma once
-
-#include <memory>
-#include <set>
-#include <string>
-#include <unordered_set>
-#include <vector>
-
-#include "db/compaction.h"
 #include "db/version_set.h"
-#include "rocksdb/env.h"
-#include "rocksdb/options.h"
+#include "db/compaction.h"
 #include "rocksdb/status.h"
+#include "rocksdb/options.h"
+#include "rocksdb/env.h"
 #include "util/mutable_cf_options.h"
 
+#include <vector>
+#include <memory>
+#include <set>
 
 namespace rocksdb {
 
 class LogBuffer;
 class Compaction;
-class VersionStorageInfo;
-struct CompactionInputFiles;
+class Version;
 
 class CompactionPicker {
  public:
@@ -40,10 +35,9 @@ class CompactionPicker {
   // Returns nullptr if there is no compaction to be done.
   // Otherwise returns a pointer to a heap-allocated object that
   // describes the compaction.  Caller should delete the result.
-  virtual Compaction* PickCompaction(const std::string& cf_name,
-                                     const MutableCFOptions& mutable_cf_options,
-                                     VersionStorageInfo* vstorage,
-                                     LogBuffer* log_buffer) = 0;
+  virtual Compaction* PickCompaction(
+      const MutableCFOptions& mutable_cf_options,
+      Version* version, LogBuffer* log_buffer) = 0;
 
   // Return a compaction object for compacting the range [begin,end] in
   // the specified level.  Returns nullptr if there is nothing in that
@@ -57,65 +51,21 @@ class CompactionPicker {
   // Client is responsible for compaction_end storage -- when called,
   // *compaction_end should point to valid InternalKey!
   virtual Compaction* CompactRange(
-      const std::string& cf_name, const MutableCFOptions& mutable_cf_options,
-      VersionStorageInfo* vstorage, int input_level, int output_level,
-      uint32_t output_path_id, const InternalKey* begin, const InternalKey* end,
-      InternalKey** compaction_end, bool* manual_conflict);
+      const MutableCFOptions& mutable_cf_options, Version* version,
+      int input_level, int output_level, uint32_t output_path_id,
+      const InternalKey* begin, const InternalKey* end,
+      InternalKey** compaction_end);
 
-  // The maximum allowed output level.  Default value is NumberLevels() - 1.
-  virtual int MaxOutputLevel() const {
-    return NumberLevels() - 1;
-  }
-
-  virtual bool NeedsCompaction(const VersionStorageInfo* vstorage) const = 0;
-
-  // Sanitize the input set of compaction input files.
-  // When the input parameters do not describe a valid compaction, the
-  // function will try to fix the input_files by adding necessary
-  // files.  If it's not possible to conver an invalid input_files
-  // into a valid one by adding more files, the function will return a
-  // non-ok status with specific reason.
-#ifndef ROCKSDB_LITE
-  Status SanitizeCompactionInputFiles(
-      std::unordered_set<uint64_t>* input_files,
-      const ColumnFamilyMetaData& cf_meta,
-      const int output_level) const;
-#endif  // ROCKSDB_LITE
+  // Given the current number of levels, returns the lowest allowed level
+  // for compaction input.
+  virtual int MaxInputLevel(int current_num_levels) const = 0;
 
   // Free up the files that participated in a compaction
-  //
-  // Requirement: DB mutex held
   void ReleaseCompactionFiles(Compaction* c, Status status);
 
-  // Returns true if any one of the specified files are being compacted
-  bool FilesInCompaction(const std::vector<FileMetaData*>& files);
-
-  // Takes a list of CompactionInputFiles and returns a (manual) Compaction
-  // object.
-  Compaction* FormCompaction(
-      const CompactionOptions& compact_options,
-      const std::vector<CompactionInputFiles>& input_files, int output_level,
-      VersionStorageInfo* vstorage, const MutableCFOptions& mutable_cf_options,
-      uint32_t output_path_id);
-
-  // Converts a set of compaction input file numbers into
-  // a list of CompactionInputFiles.
-  Status GetCompactionInputsFromFileNumbers(
-      std::vector<CompactionInputFiles>* input_files,
-      std::unordered_set<uint64_t>* input_set,
-      const VersionStorageInfo* vstorage,
-      const CompactionOptions& compact_options) const;
-
-  // Used in universal compaction when the enabled_trivial_move
-  // option is set. Checks whether there are any overlapping files
-  // in the input. Returns true if the input files are non
-  // overlapping.
-  bool IsInputNonOverlapping(Compaction* c);
-
-  // Is there currently a compaction involving level 0 taking place
-  bool IsLevel0CompactionInProgress() const {
-    return !level0_compactions_in_progress_.empty();
-  }
+  // Return the total amount of data that is undergoing
+  // compactions per level
+  void SizeBeingCompacted(std::vector<uint64_t>& sizes);
 
  protected:
   int NumberLevels() const { return ioptions_.num_levels; }
@@ -123,14 +73,14 @@ class CompactionPicker {
   // Stores the minimal range that covers all entries in inputs in
   // *smallest, *largest.
   // REQUIRES: inputs is not empty
-  void GetRange(const CompactionInputFiles& inputs,
-                InternalKey* smallest, InternalKey* largest);
+  void GetRange(const std::vector<FileMetaData*>& inputs, InternalKey* smallest,
+                InternalKey* largest);
 
   // Stores the minimal range that covers all entries in inputs1 and inputs2
   // in *smallest, *largest.
   // REQUIRES: inputs is not empty
-  void GetRange(const CompactionInputFiles& inputs1,
-                const CompactionInputFiles& inputs2,
+  void GetRange(const std::vector<FileMetaData*>& inputs1,
+                const std::vector<FileMetaData*>& inputs2,
                 InternalKey* smallest, InternalKey* largest);
 
   // Add more files to the inputs on "level" to make sure that
@@ -143,150 +93,83 @@ class CompactionPicker {
   // populated.
   //
   // Will return false if it is impossible to apply this compaction.
-  bool ExpandWhileOverlapping(const std::string& cf_name,
-                              VersionStorageInfo* vstorage,
-                              CompactionInputFiles* inputs);
+  bool ExpandWhileOverlapping(Compaction* c);
+
+  // Returns true if any one of the specified files are being compacted
+  bool FilesInCompaction(std::vector<FileMetaData*>& files);
 
   // Returns true if any one of the parent files are being compacted
-  bool RangeInCompaction(VersionStorageInfo* vstorage,
-                         const InternalKey* smallest,
-                         const InternalKey* largest, int level, int* index);
+  bool ParentRangeInCompaction(Version* version, const InternalKey* smallest,
+                               const InternalKey* largest, int level,
+                               int* index);
 
-  bool SetupOtherInputs(const std::string& cf_name,
-                        const MutableCFOptions& mutable_cf_options,
-                        VersionStorageInfo* vstorage,
-                        CompactionInputFiles* inputs,
-                        CompactionInputFiles* output_level_inputs,
-                        int* parent_index, int base_index);
-
-  void GetGrandparents(VersionStorageInfo* vstorage,
-                       const CompactionInputFiles& inputs,
-                       const CompactionInputFiles& output_level_inputs,
-                       std::vector<FileMetaData*>* grandparents);
+  void SetupOtherInputs(const MutableCFOptions& mutable_cf_options,
+                        Compaction* c);
 
   const ImmutableCFOptions& ioptions_;
 
-  // A helper function to SanitizeCompactionInputFiles() that
-  // sanitizes "input_files" by adding necessary files.
-#ifndef ROCKSDB_LITE
-  virtual Status SanitizeCompactionInputFilesForAllLevels(
-      std::unordered_set<uint64_t>* input_files,
-      const ColumnFamilyMetaData& cf_meta,
-      const int output_level) const;
-#endif  // ROCKSDB_LITE
+  // record all the ongoing compactions for all levels
+  std::vector<std::set<Compaction*>> compactions_in_progress_;
 
-  // Keeps track of all compactions that are running on Level0.
-  // It is protected by DB mutex
-  std::set<Compaction*> level0_compactions_in_progress_;
 
+ private:
   const InternalKeyComparator* const icmp_;
 };
 
+class UniversalCompactionPicker : public CompactionPicker {
+ public:
+  UniversalCompactionPicker(const ImmutableCFOptions& ioptions,
+                            const InternalKeyComparator* icmp)
+      : CompactionPicker(ioptions, icmp) {}
+  virtual Compaction* PickCompaction(
+      const MutableCFOptions& mutable_cf_options,
+      Version* version, LogBuffer* log_buffer) override;
+
+  // The maxinum allowed input level.  Always return 0.
+  virtual int MaxInputLevel(int current_num_levels) const override {
+    return 0;
+  }
+
+ private:
+  // Pick Universal compaction to limit read amplification
+  Compaction* PickCompactionUniversalReadAmp(
+      const MutableCFOptions& mutable_cf_options,
+      Version* version, double score, unsigned int ratio,
+      unsigned int num_files, LogBuffer* log_buffer);
+
+  // Pick Universal compaction to limit space amplification.
+  Compaction* PickCompactionUniversalSizeAmp(
+      const MutableCFOptions& mutable_cf_options,
+      Version* version, double score, LogBuffer* log_buffer);
+
+  // Pick a path ID to place a newly generated file, with its estimated file
+  // size.
+  static uint32_t GetPathId(const ImmutableCFOptions& ioptions,
+                            uint64_t file_size);
+};
+
 class LevelCompactionPicker : public CompactionPicker {
  public:
   LevelCompactionPicker(const ImmutableCFOptions& ioptions,
                         const InternalKeyComparator* icmp)
       : CompactionPicker(ioptions, icmp) {}
-  virtual Compaction* PickCompaction(const std::string& cf_name,
-                                     const MutableCFOptions& mutable_cf_options,
-                                     VersionStorageInfo* vstorage,
-                                     LogBuffer* log_buffer) override;
+  virtual Compaction* PickCompaction(
+      const MutableCFOptions& mutable_cf_options,
+      Version* version, LogBuffer* log_buffer) override;
 
-  virtual bool NeedsCompaction(const VersionStorageInfo* vstorage) const
-      override;
-
-  // Pick a path ID to place a newly generated file, with its level
-  static uint32_t GetPathId(const ImmutableCFOptions& ioptions,
-                            const MutableCFOptions& mutable_cf_options,
-                            int level);
+  // Returns current_num_levels - 2, meaning the last level cannot be
+  // compaction input level.
+  virtual int MaxInputLevel(int current_num_levels) const override {
+    return current_num_levels - 2;
+  }
 
  private:
-  // For the specfied level, pick a file that we want to compact.
-  // Returns false if there is no file to compact.
-  // If it returns true, inputs->files.size() will be exactly one.
+  // For the specfied level, pick a compaction.
+  // Returns nullptr if there is no compaction to be done.
   // If level is 0 and there is already a compaction on that level, this
-  // function will return false.
-  bool PickCompactionBySize(VersionStorageInfo* vstorage, int level,
-                            int output_level, CompactionInputFiles* inputs,
-                            int* parent_index, int* base_index);
-
-  // If there is any file marked for compaction, put put it into inputs.
-  // This is still experimental. It will return meaningful results only if
-  // clients call experimental feature SuggestCompactRange()
-  void PickFilesMarkedForCompactionExperimental(const std::string& cf_name,
-                                                VersionStorageInfo* vstorage,
-                                                CompactionInputFiles* inputs,
-                                                int* level, int* output_level);
-};
-
-#ifndef ROCKSDB_LITE
-class UniversalCompactionPicker : public CompactionPicker {
- public:
-  UniversalCompactionPicker(const ImmutableCFOptions& ioptions,
-                            const InternalKeyComparator* icmp)
-      : CompactionPicker(ioptions, icmp) {}
-  virtual Compaction* PickCompaction(const std::string& cf_name,
-                                     const MutableCFOptions& mutable_cf_options,
-                                     VersionStorageInfo* vstorage,
-                                     LogBuffer* log_buffer) override;
-
-  virtual int MaxOutputLevel() const override { return NumberLevels() - 1; }
-
-  virtual bool NeedsCompaction(const VersionStorageInfo* vstorage) const
-      override;
-
- private:
-  struct SortedRun {
-    SortedRun(int _level, FileMetaData* _file, uint64_t _size,
-              uint64_t _compensated_file_size, bool _being_compacted)
-        : level(_level),
-          file(_file),
-          size(_size),
-          compensated_file_size(_compensated_file_size),
-          being_compacted(_being_compacted) {
-      assert(compensated_file_size > 0);
-      assert(level != 0 || file != nullptr);
-    }
-
-    void Dump(char* out_buf, size_t out_buf_size,
-              bool print_path = false) const;
-
-    // sorted_run_count is added into the string to print
-    void DumpSizeInfo(char* out_buf, size_t out_buf_size,
-                      size_t sorted_run_count) const;
-
-    int level;
-    // `file` Will be null for level > 0. For level = 0, the sorted run is
-    // for this file.
-    FileMetaData* file;
-    // For level > 0, `size` and `compensated_file_size` are sum of sizes all
-    // files in the level. `being_compacted` should be the same for all files
-    // in a non-zero level. Use the value here.
-    uint64_t size;
-    uint64_t compensated_file_size;
-    bool being_compacted;
-  };
-
-  // Pick Universal compaction to limit read amplification
-  Compaction* PickCompactionUniversalReadAmp(
-      const std::string& cf_name, const MutableCFOptions& mutable_cf_options,
-      VersionStorageInfo* vstorage, double score, unsigned int ratio,
-      unsigned int num_files, const std::vector<SortedRun>& sorted_runs,
-      LogBuffer* log_buffer);
-
-  // Pick Universal compaction to limit space amplification.
-  Compaction* PickCompactionUniversalSizeAmp(
-      const std::string& cf_name, const MutableCFOptions& mutable_cf_options,
-      VersionStorageInfo* vstorage, double score,
-      const std::vector<SortedRun>& sorted_runs, LogBuffer* log_buffer);
-
-  static std::vector<SortedRun> CalculateSortedRuns(
-      const VersionStorageInfo& vstorage, const ImmutableCFOptions& ioptions);
-
-  // Pick a path ID to place a newly generated file, with its estimated file
-  // size.
-  static uint32_t GetPathId(const ImmutableCFOptions& ioptions,
-                            uint64_t file_size);
+  // function will return nullptr.
+  Compaction* PickCompactionBySize(const MutableCFOptions& mutable_cf_options,
+      Version* version, int level, double score);
 };
 
 class FIFOCompactionPicker : public CompactionPicker {
@@ -295,62 +178,23 @@ class FIFOCompactionPicker : public CompactionPicker {
                        const InternalKeyComparator* icmp)
       : CompactionPicker(ioptions, icmp) {}
 
-  virtual Compaction* PickCompaction(const std::string& cf_name,
-                                     const MutableCFOptions& mutable_cf_options,
-                                     VersionStorageInfo* version,
-                                     LogBuffer* log_buffer) override;
+  virtual Compaction* PickCompaction(
+      const MutableCFOptions& mutable_cf_options,
+      Version* version, LogBuffer* log_buffer) override;
 
   virtual Compaction* CompactRange(
-      const std::string& cf_name, const MutableCFOptions& mutable_cf_options,
-      VersionStorageInfo* vstorage, int input_level, int output_level,
-      uint32_t output_path_id, const InternalKey* begin, const InternalKey* end,
-      InternalKey** compaction_end, bool* manual_conflict) override;
+      const MutableCFOptions& mutable_cf_options, Version* version,
+      int input_level, int output_level, uint32_t output_path_id,
+      const InternalKey* begin, const InternalKey* end,
+      InternalKey** compaction_end) override;
 
-  // The maximum allowed output level.  Always returns 0.
-  virtual int MaxOutputLevel() const override {
+  // The maxinum allowed input level.  Always return 0.
+  virtual int MaxInputLevel(int current_num_levels) const override {
     return 0;
   }
-
-  virtual bool NeedsCompaction(const VersionStorageInfo* vstorage) const
-      override;
 };
 
-class NullCompactionPicker : public CompactionPicker {
- public:
-  NullCompactionPicker(const ImmutableCFOptions& ioptions,
-                       const InternalKeyComparator* icmp) :
-      CompactionPicker(ioptions, icmp) {}
-  virtual ~NullCompactionPicker() {}
-
-  // Always return "nullptr"
-  Compaction* PickCompaction(const std::string& cf_name,
-                             const MutableCFOptions& mutable_cf_options,
-                             VersionStorageInfo* vstorage,
-                             LogBuffer* log_buffer) override {
-    return nullptr;
-  }
-
-  // Always return "nullptr"
-  Compaction* CompactRange(const std::string& cf_name,
-                           const MutableCFOptions& mutable_cf_options,
-                           VersionStorageInfo* vstorage, int input_level,
-                           int output_level, uint32_t output_path_id,
-                           const InternalKey* begin, const InternalKey* end,
-                           InternalKey** compaction_end,
-                           bool* manual_conflict) override {
-    return nullptr;
-  }
-
-  // Always returns false.
-  virtual bool NeedsCompaction(const VersionStorageInfo* vstorage) const
-      override {
-    return false;
-  }
-};
-#endif  // !ROCKSDB_LITE
-
-CompressionType GetCompressionType(const ImmutableCFOptions& ioptions,
-                                   int level, int base_level,
-                                   const bool enable_compression = true);
+// Utility function
+extern uint64_t TotalCompensatedFileSize(const std::vector<FileMetaData*>& files);
 
 }  // namespace rocksdb

db/comparator_db_test.cc

@@ -1,439 +0,0 @@
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under the BSD-style license found in the
-//  LICENSE file in the root directory of this source tree. An additional grant
-//  of patent rights can be found in the PATENTS file in the same directory.
-#include <map>
-#include <string>
-
-#include "memtable/stl_wrappers.h"
-#include "rocksdb/db.h"
-#include "rocksdb/env.h"
-#include "util/hash.h"
-#include "util/kv_map.h"
-#include "util/string_util.h"
-#include "util/testharness.h"
-#include "util/testutil.h"
-#include "utilities/merge_operators.h"
-
-using std::unique_ptr;
-
-namespace rocksdb {
-namespace {
-
-static const Comparator* comparator;
-
-class KVIter : public Iterator {
- public:
-  explicit KVIter(const stl_wrappers::KVMap* map)
-      : map_(map), iter_(map_->end()) {}
-  virtual bool Valid() const override { return iter_ != map_->end(); }
-  virtual void SeekToFirst() override { iter_ = map_->begin(); }
-  virtual void SeekToLast() override {
-    if (map_->empty()) {
-      iter_ = map_->end();
-    } else {
-      iter_ = map_->find(map_->rbegin()->first);
-    }
-  }
-  virtual void Seek(const Slice& k) override {
-    iter_ = map_->lower_bound(k.ToString());
-  }
-  virtual void Next() override { ++iter_; }
-  virtual void Prev() override {
-    if (iter_ == map_->begin()) {
-      iter_ = map_->end();
-      return;
-    }
-    --iter_;
-  }
-
-  virtual Slice key() const override { return iter_->first; }
-  virtual Slice value() const override { return iter_->second; }
-  virtual Status status() const override { return Status::OK(); }
-
- private:
-  const stl_wrappers::KVMap* const map_;
-  stl_wrappers::KVMap::const_iterator iter_;
-};
-
-void AssertItersEqual(Iterator* iter1, Iterator* iter2) {
-  ASSERT_EQ(iter1->Valid(), iter2->Valid());
-  if (iter1->Valid()) {
-    ASSERT_EQ(iter1->key().ToString(), iter2->key().ToString());
-    ASSERT_EQ(iter1->value().ToString(), iter2->value().ToString());
-  }
-}
-
-// Measuring operations on DB (expect to be empty).
-// source_strings are candidate keys
-void DoRandomIteraratorTest(DB* db, std::vector<std::string> source_strings,
-                            Random* rnd, int num_writes, int num_iter_ops,
-                            int num_trigger_flush) {
-  stl_wrappers::KVMap map((stl_wrappers::LessOfComparator(comparator)));
-
-  for (int i = 0; i < num_writes; i++) {
-    if (num_trigger_flush > 0 && i != 0 && i % num_trigger_flush == 0) {
-      db->Flush(FlushOptions());
-    }
-
-    int type = rnd->Uniform(2);
-    int index = rnd->Uniform(static_cast<int>(source_strings.size()));
-    auto& key = source_strings[index];
-    switch (type) {
-      case 0:
-        // put
-        map[key] = key;
-        ASSERT_OK(db->Put(WriteOptions(), key, key));
-        break;
-      case 1:
-        // delete
-        if (map.find(key) != map.end()) {
-          map.erase(key);
-        }
-        ASSERT_OK(db->Delete(WriteOptions(), key));
-        break;
-      default:
-        assert(false);
-    }
-  }
-
-  std::unique_ptr<Iterator> iter(db->NewIterator(ReadOptions()));
-  std::unique_ptr<Iterator> result_iter(new KVIter(&map));
-
-  bool is_valid = false;
-  for (int i = 0; i < num_iter_ops; i++) {
-    // Random walk and make sure iter and result_iter returns the
-    // same key and value
-    int type = rnd->Uniform(6);
-    ASSERT_OK(iter->status());
-    switch (type) {
-      case 0:
-        // Seek to First
-        iter->SeekToFirst();
-        result_iter->SeekToFirst();
-        break;
-      case 1:
-        // Seek to last
-        iter->SeekToLast();
-        result_iter->SeekToLast();
-        break;
-      case 2: {
-        // Seek to random key
-        auto key_idx = rnd->Uniform(static_cast<int>(source_strings.size()));
-        auto key = source_strings[key_idx];
-        iter->Seek(key);
-        result_iter->Seek(key);
-        break;
-      }
-      case 3:
-        // Next
-        if (is_valid) {
-          iter->Next();
-          result_iter->Next();
-        } else {
-          continue;
-        }
-        break;
-      case 4:
-        // Prev
-        if (is_valid) {
-          iter->Prev();
-          result_iter->Prev();
-        } else {
-          continue;
-        }
-        break;
-      default: {
-        assert(type == 5);
-        auto key_idx = rnd->Uniform(static_cast<int>(source_strings.size()));
-        auto key = source_strings[key_idx];
-        std::string result;
-        auto status = db->Get(ReadOptions(), key, &result);
-        if (map.find(key) == map.end()) {
-          ASSERT_TRUE(status.IsNotFound());
-        } else {
-          ASSERT_EQ(map[key], result);
-        }
-        break;
-      }
-    }
-    AssertItersEqual(iter.get(), result_iter.get());
-    is_valid = iter->Valid();
-  }
-}
-
-class DoubleComparator : public Comparator {
- public:
-  DoubleComparator() {}
-
-  virtual const char* Name() const override { return "DoubleComparator"; }
-
-  virtual int Compare(const Slice& a, const Slice& b) const override {
-#ifndef CYGWIN
-    double da = std::stod(a.ToString());
-    double db = std::stod(b.ToString());
-#else
-    double da = std::strtod(a.ToString().c_str(), 0 /* endptr */);
-    double db = std::strtod(a.ToString().c_str(), 0 /* endptr */);
-#endif
-    if (da == db) {
-      return a.compare(b);
-    } else if (da > db) {
-      return 1;
-    } else {
-      return -1;
-    }
-  }
-  virtual void FindShortestSeparator(std::string* start,
-                                     const Slice& limit) const override {}
-
-  virtual void FindShortSuccessor(std::string* key) const override {}
-};
-
-class HashComparator : public Comparator {
- public:
-  HashComparator() {}
-
-  virtual const char* Name() const override { return "HashComparator"; }
-
-  virtual int Compare(const Slice& a, const Slice& b) const override {
-    uint32_t ha = Hash(a.data(), a.size(), 66);
-    uint32_t hb = Hash(b.data(), b.size(), 66);
-    if (ha == hb) {
-      return a.compare(b);
-    } else if (ha > hb) {
-      return 1;
-    } else {
-      return -1;
-    }
-  }
-  virtual void FindShortestSeparator(std::string* start,
-                                     const Slice& limit) const override {}
-
-  virtual void FindShortSuccessor(std::string* key) const override {}
-};
-
-class TwoStrComparator : public Comparator {
- public:
-  TwoStrComparator() {}
-
-  virtual const char* Name() const override { return "TwoStrComparator"; }
-
-  virtual int Compare(const Slice& a, const Slice& b) const override {
-    assert(a.size() >= 2);
-    assert(b.size() >= 2);
-    size_t size_a1 = static_cast<size_t>(a[0]);
-    size_t size_b1 = static_cast<size_t>(b[0]);
-    size_t size_a2 = static_cast<size_t>(a[1]);
-    size_t size_b2 = static_cast<size_t>(b[1]);
-    assert(size_a1 + size_a2 + 2 == a.size());
-    assert(size_b1 + size_b2 + 2 == b.size());
-
-    Slice a1 = Slice(a.data() + 2, size_a1);
-    Slice b1 = Slice(b.data() + 2, size_b1);
-    Slice a2 = Slice(a.data() + 2 + size_a1, size_a2);
-    Slice b2 = Slice(b.data() + 2 + size_b1, size_b2);
-
-    if (a1 != b1) {
-      return a1.compare(b1);
-    }
-    return a2.compare(b2);
-  }
-  virtual void FindShortestSeparator(std::string* start,
-                                     const Slice& limit) const override {}
-
-  virtual void FindShortSuccessor(std::string* key) const override {}
-};
-}  // namespace
-
-class ComparatorDBTest : public testing::Test {
- private:
-  std::string dbname_;
-  Env* env_;
-  DB* db_;
-  Options last_options_;
-  std::unique_ptr<const Comparator> comparator_guard;
-
- public:
-  ComparatorDBTest() : env_(Env::Default()), db_(nullptr) {
-    comparator = BytewiseComparator();
-    dbname_ = test::TmpDir() + "/comparator_db_test";
-    EXPECT_OK(DestroyDB(dbname_, last_options_));
-  }
-
-  ~ComparatorDBTest() {
-    delete db_;
-    EXPECT_OK(DestroyDB(dbname_, last_options_));
-    comparator = BytewiseComparator();
-  }
-
-  DB* GetDB() { return db_; }
-
-  void SetOwnedComparator(const Comparator* cmp) {
-    comparator_guard.reset(cmp);
-    comparator = cmp;
-    last_options_.comparator = cmp;
-  }
-
-  // Return the current option configuration.
-  Options* GetOptions() { return &last_options_; }
-
-  void DestroyAndReopen() {
-    // Destroy using last options
-    Destroy();
-    ASSERT_OK(TryReopen());
-  }
-
-  void Destroy() {
-    delete db_;
-    db_ = nullptr;
-    ASSERT_OK(DestroyDB(dbname_, last_options_));
-  }
-
-  Status TryReopen() {
-    delete db_;
-    db_ = nullptr;
-    last_options_.create_if_missing = true;
-
-    return DB::Open(last_options_, dbname_, &db_);
-  }
-};
-
-TEST_F(ComparatorDBTest, Bytewise) {
-  for (int rand_seed = 301; rand_seed < 306; rand_seed++) {
-    DestroyAndReopen();
-    Random rnd(rand_seed);
-    DoRandomIteraratorTest(GetDB(),
-                           {"a", "b", "c", "d", "e", "f", "g", "h", "i"}, &rnd,
-                           8, 100, 3);
-  }
-}
-
-TEST_F(ComparatorDBTest, SimpleSuffixReverseComparator) {
-  SetOwnedComparator(new test::SimpleSuffixReverseComparator());
-
-  for (int rnd_seed = 301; rnd_seed < 316; rnd_seed++) {
-    Options* opt = GetOptions();
-    opt->comparator = comparator;
-    DestroyAndReopen();
-    Random rnd(rnd_seed);
-
-    std::vector<std::string> source_strings;
-    std::vector<std::string> source_prefixes;
-    // Randomly generate 5 prefixes
-    for (int i = 0; i < 5; i++) {
-      source_prefixes.push_back(test::RandomHumanReadableString(&rnd, 8));
-    }
-    for (int j = 0; j < 20; j++) {
-      int prefix_index = rnd.Uniform(static_cast<int>(source_prefixes.size()));
-      std::string key = source_prefixes[prefix_index] +
-                        test::RandomHumanReadableString(&rnd, rnd.Uniform(8));
-      source_strings.push_back(key);
-    }
-
-    DoRandomIteraratorTest(GetDB(), source_strings, &rnd, 30, 600, 66);
-  }
-}
-
-TEST_F(ComparatorDBTest, Uint64Comparator) {
-  SetOwnedComparator(test::Uint64Comparator());
-
-  for (int rnd_seed = 301; rnd_seed < 316; rnd_seed++) {
-    Options* opt = GetOptions();
-    opt->comparator = comparator;
-    DestroyAndReopen();
-    Random rnd(rnd_seed);
-    Random64 rnd64(rnd_seed);
-
-    std::vector<std::string> source_strings;
-    // Randomly generate source keys
-    for (int i = 0; i < 100; i++) {
-      uint64_t r = rnd64.Next();
-      std::string str;
-      str.resize(8);
-      memcpy(&str[0], static_cast<void*>(&r), 8);
-      source_strings.push_back(str);
-    }
-
-    DoRandomIteraratorTest(GetDB(), source_strings, &rnd, 200, 1000, 66);
-  }
-}
-
-TEST_F(ComparatorDBTest, DoubleComparator) {
-  SetOwnedComparator(new DoubleComparator());
-
-  for (int rnd_seed = 301; rnd_seed < 316; rnd_seed++) {
-    Options* opt = GetOptions();
-    opt->comparator = comparator;
-    DestroyAndReopen();
-    Random rnd(rnd_seed);
-
-    std::vector<std::string> source_strings;
-    // Randomly generate source keys
-    for (int i = 0; i < 100; i++) {
-      uint32_t r = rnd.Next();
-      uint32_t divide_order = rnd.Uniform(8);
-      double to_divide = 1.0;
-      for (uint32_t j = 0; j < divide_order; j++) {
-        to_divide *= 10.0;
-      }
-      source_strings.push_back(ToString(r / to_divide));
-    }
-
-    DoRandomIteraratorTest(GetDB(), source_strings, &rnd, 200, 1000, 66);
-  }
-}
-
-TEST_F(ComparatorDBTest, HashComparator) {
-  SetOwnedComparator(new HashComparator());
-
-  for (int rnd_seed = 301; rnd_seed < 316; rnd_seed++) {
-    Options* opt = GetOptions();
-    opt->comparator = comparator;
-    DestroyAndReopen();
-    Random rnd(rnd_seed);
-
-    std::vector<std::string> source_strings;
-    // Randomly generate source keys
-    for (int i = 0; i < 100; i++) {
-      source_strings.push_back(test::RandomKey(&rnd, 8));
-    }
-
-    DoRandomIteraratorTest(GetDB(), source_strings, &rnd, 200, 1000, 66);
-  }
-}
-
-TEST_F(ComparatorDBTest, TwoStrComparator) {
-  SetOwnedComparator(new TwoStrComparator());
-
-  for (int rnd_seed = 301; rnd_seed < 316; rnd_seed++) {
-    Options* opt = GetOptions();
-    opt->comparator = comparator;
-    DestroyAndReopen();
-    Random rnd(rnd_seed);
-
-    std::vector<std::string> source_strings;
-    // Randomly generate source keys
-    for (int i = 0; i < 100; i++) {
-      std::string str;
-      uint32_t size1 = rnd.Uniform(8);
-      uint32_t size2 = rnd.Uniform(8);
-      str.append(1, static_cast<char>(size1));
-      str.append(1, static_cast<char>(size2));
-      str.append(test::RandomKey(&rnd, size1));
-      str.append(test::RandomKey(&rnd, size2));
-      source_strings.push_back(str);
-    }
-
-    DoRandomIteraratorTest(GetDB(), source_strings, &rnd, 200, 1000, 66);
-  }
-}
-
-}  // namespace rocksdb
-
-int main(int argc, char** argv) {
-  ::testing::InitGoogleTest(&argc, argv);
-  return RUN_ALL_TESTS();
-}

db/convenience.cc

@@ -1,30 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under the BSD-style license found in the
-//  LICENSE file in the root directory of this source tree. An additional grant
-//  of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2012 Facebook.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef ROCKSDB_LITE
-
-#include "rocksdb/convenience.h"
-
-#include "db/db_impl.h"
-
-namespace rocksdb {
-
-void CancelAllBackgroundWork(DB* db, bool wait) {
-  (dynamic_cast<DBImpl*>(db))->CancelAllBackgroundWork(wait);
-}
-
-Status DeleteFilesInRange(DB* db, ColumnFamilyHandle* column_family,
-                          const Slice* begin, const Slice* end) {
-  return (dynamic_cast<DBImpl*>(db))
-      ->DeleteFilesInRange(column_family, begin, end);
-}
-
-}  // namespace rocksdb
-
-#endif  // ROCKSDB_LITE

db/corruption_test.cc

@@ -1,4 +1,4 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+//  Copyright (c) 2013, Facebook, Inc.  All rights reserved.
 //  This source code is licensed under the BSD-style license found in the
 //  LICENSE file in the root directory of this source tree. An additional grant
 //  of patent rights can be found in the PATENTS file in the same directory.
@@ -7,11 +7,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file. See the AUTHORS file for names of contributors.
 
-#ifndef ROCKSDB_LITE
-
 #include "rocksdb/db.h"
 
-#include <inttypes.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <sys/stat.h>
@@ -32,7 +29,7 @@ namespace rocksdb {
 
 static const int kValueSize = 1000;
 
-class CorruptionTest : public testing::Test {
+class CorruptionTest {
  public:
   test::ErrorEnv env_;
   std::string dbname_;
@@ -60,11 +57,6 @@ class CorruptionTest : public testing::Test {
      DestroyDB(dbname_, Options());
   }
 
-  void CloseDb() {
-    delete db_;
-    db_ = nullptr;
-  }
-
   Status TryReopen(Options* options = nullptr) {
     delete db_;
     db_ = nullptr;
@@ -88,14 +80,10 @@ class CorruptionTest : public testing::Test {
     ASSERT_OK(::rocksdb::RepairDB(dbname_, options_));
   }
 
-  void Build(int n, int flush_every = 0) {
+  void Build(int n) {
     std::string key_space, value_space;
     WriteBatch batch;
     for (int i = 0; i < n; i++) {
-      if (flush_every != 0 && i != 0 && i % flush_every == 0) {
-        DBImpl* dbi = reinterpret_cast<DBImpl*>(db_);
-        dbi->TEST_FlushMemTable();
-      }
       //if ((i % 100) == 0) fprintf(stderr, "@ %d of %d\n", i, n);
       Slice key = Key(i, &key_space);
       batch.Clear();
@@ -105,8 +93,8 @@ class CorruptionTest : public testing::Test {
   }
 
   void Check(int min_expected, int max_expected) {
-    uint64_t next_expected = 0;
-    uint64_t missed = 0;
+    unsigned int next_expected = 0;
+    int missed = 0;
     int bad_keys = 0;
     int bad_values = 0;
     int correct = 0;
@@ -115,7 +103,7 @@ class CorruptionTest : public testing::Test {
     // db itself will raise errors because data is corrupted.
     // Instead, we want the reads to be successful and this test
     // will detect whether the appropriate corruptions have
-    // occurred.
+    // occured.
     Iterator* iter = db_->NewIterator(ReadOptions(false, true));
     for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
       uint64_t key;
@@ -128,7 +116,7 @@ class CorruptionTest : public testing::Test {
       }
       missed += (key - next_expected);
       next_expected = key + 1;
-      if (iter->value() != Value(static_cast<int>(key), &value_space)) {
+      if (iter->value() != Value(key, &value_space)) {
         bad_values++;
       } else {
         correct++;
@@ -137,9 +125,8 @@ class CorruptionTest : public testing::Test {
     delete iter;
 
     fprintf(stderr,
-      "expected=%d..%d; got=%d; bad_keys=%d; bad_values=%d; missed=%llu\n",
-            min_expected, max_expected, correct, bad_keys, bad_values,
-            static_cast<unsigned long long>(missed));
+            "expected=%d..%d; got=%d; bad_keys=%d; bad_values=%d; missed=%d\n",
+            min_expected, max_expected, correct, bad_keys, bad_values, missed);
     ASSERT_LE(min_expected, correct);
     ASSERT_GE(max_expected, correct);
   }
@@ -156,14 +143,14 @@ class CorruptionTest : public testing::Test {
       if (-offset > sbuf.st_size) {
         offset = 0;
       } else {
-        offset = static_cast<int>(sbuf.st_size + offset);
+        offset = sbuf.st_size + offset;
       }
     }
     if (offset > sbuf.st_size) {
-      offset = static_cast<int>(sbuf.st_size);
+      offset = sbuf.st_size;
     }
     if (offset + bytes_to_corrupt > sbuf.st_size) {
-      bytes_to_corrupt = static_cast<int>(sbuf.st_size - offset);
+      bytes_to_corrupt = sbuf.st_size - offset;
     }
 
     // Do it
@@ -185,12 +172,12 @@ class CorruptionTest : public testing::Test {
     FileType type;
     std::string fname;
     int picked_number = -1;
-    for (size_t i = 0; i < filenames.size(); i++) {
+    for (unsigned int i = 0; i < filenames.size(); i++) {
       if (ParseFileName(filenames[i], &number, &type) &&
           type == filetype &&
           static_cast<int>(number) > picked_number) {  // Pick latest file
         fname = dbname_ + "/" + filenames[i];
-        picked_number = static_cast<int>(number);
+        picked_number = number;
       }
     }
     ASSERT_TRUE(!fname.empty()) << filetype;
@@ -234,53 +221,32 @@ class CorruptionTest : public testing::Test {
 
   // Return the value to associate with the specified key
   Slice Value(int k, std::string* storage) {
-    if (k == 0) {
-      // Ugh.  Random seed of 0 used to produce no entropy.  This code
-      // preserves the implementation that was in place when all of the
-      // magic values in this file were picked.
-      *storage = std::string(kValueSize, ' ');
-      return Slice(*storage);
-    } else {
-      Random r(k);
-      return test::RandomString(&r, kValueSize, storage);
-    }
+    Random r(k);
+    return test::RandomString(&r, kValueSize, storage);
   }
 };
 
-TEST_F(CorruptionTest, Recovery) {
+TEST(CorruptionTest, Recovery) {
   Build(100);
   Check(100, 100);
-#ifdef OS_WIN
-  // On Wndows OS Disk cache does not behave properly
-  // We do not call FlushBuffers on every Flush. If we do not close
-  // the log file prior to the corruption we end up with the first
-  // block not corrupted but only the second. However, under the debugger
-  // things work just fine but never pass when running normally
-  // For that reason people may want to run with unbuffered I/O. That option
-  // is not available for WAL though.
-  CloseDb();
-#endif
   Corrupt(kLogFile, 19, 1);      // WriteBatch tag for first record
   Corrupt(kLogFile, log::kBlockSize + 1000, 1);  // Somewhere in second block
-  ASSERT_TRUE(!TryReopen().ok());
-  options_.paranoid_checks = false;
-  Reopen(&options_);
+  Reopen();
 
   // The 64 records in the first two log blocks are completely lost.
   Check(36, 36);
 }
 
-TEST_F(CorruptionTest, RecoverWriteError) {
+TEST(CorruptionTest, RecoverWriteError) {
   env_.writable_file_error_ = true;
   Status s = TryReopen();
   ASSERT_TRUE(!s.ok());
 }
 
-TEST_F(CorruptionTest, NewFileErrorDuringWrite) {
+TEST(CorruptionTest, NewFileErrorDuringWrite) {
   // Do enough writing to force minor compaction
   env_.writable_file_error_ = true;
-  const int num =
-      static_cast<int>(3 + (Options().write_buffer_size / kValueSize));
+  const int num = 3 + (Options().write_buffer_size / kValueSize);
   std::string value_storage;
   Status s;
   bool failed = false;
@@ -299,7 +265,7 @@ TEST_F(CorruptionTest, NewFileErrorDuringWrite) {
   Reopen();
 }
 
-TEST_F(CorruptionTest, TableFile) {
+TEST(CorruptionTest, TableFile) {
   Build(100);
   DBImpl* dbi = reinterpret_cast<DBImpl*>(db_);
   dbi->TEST_FlushMemTable();
@@ -310,32 +276,24 @@ TEST_F(CorruptionTest, TableFile) {
   Check(99, 99);
 }
 
-TEST_F(CorruptionTest, TableFileIndexData) {
-  Options options;
-  // very big, we'll trigger flushes manually
-  options.write_buffer_size = 100 * 1024 * 1024;
-  Reopen(&options);
-  // build 2 tables, flush at 5000
-  Build(10000, 5000);
+TEST(CorruptionTest, TableFileIndexData) {
+  Build(10000);  // Enough to build multiple Tables
   DBImpl* dbi = reinterpret_cast<DBImpl*>(db_);
   dbi->TEST_FlushMemTable();
 
-  // corrupt an index block of an entire file
   Corrupt(kTableFile, -2000, 500);
   Reopen();
-  // one full file should be readable, since only one was corrupted
-  // the other file should be fully non-readable, since index was corrupted
-  Check(5000, 5000);
+  Check(5000, 9999);
 }
 
-TEST_F(CorruptionTest, MissingDescriptor) {
+TEST(CorruptionTest, MissingDescriptor) {
   Build(1000);
   RepairDB();
   Reopen();
   Check(1000, 1000);
 }
 
-TEST_F(CorruptionTest, SequenceNumberRecovery) {
+TEST(CorruptionTest, SequenceNumberRecovery) {
   ASSERT_OK(db_->Put(WriteOptions(), "foo", "v1"));
   ASSERT_OK(db_->Put(WriteOptions(), "foo", "v2"));
   ASSERT_OK(db_->Put(WriteOptions(), "foo", "v3"));
@@ -356,7 +314,7 @@ TEST_F(CorruptionTest, SequenceNumberRecovery) {
   ASSERT_EQ("v6", v);
 }
 
-TEST_F(CorruptionTest, CorruptedDescriptor) {
+TEST(CorruptionTest, CorruptedDescriptor) {
   ASSERT_OK(db_->Put(WriteOptions(), "foo", "hello"));
   DBImpl* dbi = reinterpret_cast<DBImpl*>(db_);
   dbi->TEST_FlushMemTable();
@@ -373,15 +331,15 @@ TEST_F(CorruptionTest, CorruptedDescriptor) {
   ASSERT_EQ("hello", v);
 }
 
-TEST_F(CorruptionTest, CompactionInputError) {
+TEST(CorruptionTest, CompactionInputError) {
   Options options;
+  options.max_background_flushes = 0;
   Reopen(&options);
   Build(10);
   DBImpl* dbi = reinterpret_cast<DBImpl*>(db_);
   dbi->TEST_FlushMemTable();
-  dbi->TEST_CompactRange(0, nullptr, nullptr);
-  dbi->TEST_CompactRange(1, nullptr, nullptr);
-  ASSERT_EQ(1, Property("rocksdb.num-files-at-level2"));
+  const int last = dbi->MaxMemCompactionLevel();
+  ASSERT_EQ(1, Property("rocksdb.num-files-at-level" + NumberToString(last)));
 
   Corrupt(kTableFile, 100, 1);
   Check(9, 9);
@@ -391,25 +349,23 @@ TEST_F(CorruptionTest, CompactionInputError) {
   Check(10000, 10000);
 }
 
-TEST_F(CorruptionTest, CompactionInputErrorParanoid) {
+TEST(CorruptionTest, CompactionInputErrorParanoid) {
   Options options;
   options.paranoid_checks = true;
   options.write_buffer_size = 131072;
   options.max_write_buffer_number = 2;
+  options.max_background_flushes = 0;
   Reopen(&options);
   DBImpl* dbi = reinterpret_cast<DBImpl*>(db_);
 
-  // Fill levels >= 1
+  // Fill levels >= 1 so memtable flush outputs to level 0
   for (int level = 1; level < dbi->NumberLevels(); level++) {
     dbi->Put(WriteOptions(), "", "begin");
     dbi->Put(WriteOptions(), "~", "end");
     dbi->TEST_FlushMemTable();
-    for (int comp_level = 0; comp_level < dbi->NumberLevels() - level;
-         ++comp_level) {
-      dbi->TEST_CompactRange(comp_level, nullptr, nullptr);
-    }
   }
 
+  options.max_mem_compaction_level = 0;
   Reopen(&options);
 
   dbi = reinterpret_cast<DBImpl*>(db_);
@@ -436,7 +392,7 @@ TEST_F(CorruptionTest, CompactionInputErrorParanoid) {
   ASSERT_TRUE(!s.ok()) << "write did not fail in corrupted paranoid db";
 }
 
-TEST_F(CorruptionTest, UnrelatedKeys) {
+TEST(CorruptionTest, UnrelatedKeys) {
   Build(10);
   DBImpl* dbi = reinterpret_cast<DBImpl*>(db_);
   dbi->TEST_FlushMemTable();
@@ -452,7 +408,7 @@ TEST_F(CorruptionTest, UnrelatedKeys) {
   ASSERT_EQ(Value(1000, &tmp2).ToString(), v);
 }
 
-TEST_F(CorruptionTest, FileSystemStateCorrupted) {
+TEST(CorruptionTest, FileSystemStateCorrupted) {
   for (int iter = 0; iter < 2; ++iter) {
     Options options;
     options.paranoid_checks = true;
@@ -488,16 +444,5 @@ TEST_F(CorruptionTest, FileSystemStateCorrupted) {
 }  // namespace rocksdb
 
 int main(int argc, char** argv) {
-  ::testing::InitGoogleTest(&argc, argv);
-  return RUN_ALL_TESTS();
+  return rocksdb::test::RunAllTests();
 }
-
-#else
-#include <stdio.h>
-
-int main(int argc, char** argv) {
-  fprintf(stderr, "SKIPPED as RepairDB() is not supported in ROCKSDB_LITE\n");
-  return 0;
-}
-
-#endif  // !ROCKSDB_LITE

db/cuckoo_table_db_test.cc

@@ -1,10 +1,8 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+//  Copyright (c) 2014, Facebook, Inc.  All rights reserved.
 //  This source code is licensed under the BSD-style license found in the
 //  LICENSE file in the root directory of this source tree. An additional grant
 //  of patent rights can be found in the PATENTS file in the same directory.
 
-#ifndef ROCKSDB_LITE
-
 #include "db/db_impl.h"
 #include "rocksdb/db.h"
 #include "rocksdb/env.h"
@@ -16,7 +14,7 @@
 
 namespace rocksdb {
 
-class CuckooTableDBTest : public testing::Test {
+class CuckooTableDBTest {
  private:
   std::string dbname_;
   Env* env_;
@@ -25,14 +23,14 @@ class CuckooTableDBTest : public testing::Test {
  public:
   CuckooTableDBTest() : env_(Env::Default()) {
     dbname_ = test::TmpDir() + "/cuckoo_table_db_test";
-    EXPECT_OK(DestroyDB(dbname_, Options()));
+    ASSERT_OK(DestroyDB(dbname_, Options()));
     db_ = nullptr;
     Reopen();
   }
 
   ~CuckooTableDBTest() {
     delete db_;
-    EXPECT_OK(DestroyDB(dbname_, Options()));
+    ASSERT_OK(DestroyDB(dbname_, Options()));
   }
 
   Options CurrentOptions() {
@@ -41,6 +39,7 @@ class CuckooTableDBTest : public testing::Test {
     options.memtable_factory.reset(NewHashLinkListRepFactory(4, 0, 3, true));
     options.allow_mmap_reads = true;
     options.create_if_missing = true;
+    options.max_mem_compaction_level = 0;
     return options;
   }
 
@@ -84,15 +83,16 @@ class CuckooTableDBTest : public testing::Test {
 
   int NumTableFilesAtLevel(int level) {
     std::string property;
-    EXPECT_TRUE(db_->GetProperty(
-        "rocksdb.num-files-at-level" + NumberToString(level), &property));
+    ASSERT_TRUE(
+        db_->GetProperty("rocksdb.num-files-at-level" + NumberToString(level),
+                         &property));
     return atoi(property.c_str());
   }
 
   // Return spread of files per level
   std::string FilesPerLevel() {
     std::string result;
-    size_t last_non_zero_offset = 0;
+    int last_non_zero_offset = 0;
     for (int level = 0; level < db_->NumberLevels(); level++) {
       int f = NumTableFilesAtLevel(level);
       char buf[100];
@@ -107,7 +107,7 @@ class CuckooTableDBTest : public testing::Test {
   }
 };
 
-TEST_F(CuckooTableDBTest, Flush) {
+TEST(CuckooTableDBTest, Flush) {
   // Try with empty DB first.
   ASSERT_TRUE(dbfull() != nullptr);
   ASSERT_EQ("NOT_FOUND", Get("key2"));
@@ -170,7 +170,7 @@ TEST_F(CuckooTableDBTest, Flush) {
   ASSERT_EQ("NOT_FOUND", Get("key6"));
 }
 
-TEST_F(CuckooTableDBTest, FlushWithDuplicateKeys) {
+TEST(CuckooTableDBTest, FlushWithDuplicateKeys) {
   Options options = CurrentOptions();
   Reopen(&options);
   ASSERT_OK(Put("key1", "v1"));
@@ -201,7 +201,7 @@ static std::string Uint64Key(uint64_t i) {
 }
 }  // namespace.
 
-TEST_F(CuckooTableDBTest, Uint64Comparator) {
+TEST(CuckooTableDBTest, Uint64Comparator) {
   Options options = CurrentOptions();
   options.comparator = test::Uint64Comparator();
   Reopen(&options);
@@ -228,7 +228,34 @@ TEST_F(CuckooTableDBTest, Uint64Comparator) {
   ASSERT_EQ("v4", Get(Uint64Key(4)));
 }
 
-TEST_F(CuckooTableDBTest, CompactionIntoMultipleFiles) {
+TEST(CuckooTableDBTest, CompactionTrigger) {
+  Options options = CurrentOptions();
+  options.write_buffer_size = 100 << 10;  // 100KB
+  options.level0_file_num_compaction_trigger = 2;
+  Reopen(&options);
+
+  // Write 11 values, each 10016 B
+  for (int idx = 0; idx < 11; ++idx) {
+    ASSERT_OK(Put(Key(idx), std::string(10000, 'a' + idx)));
+  }
+  dbfull()->TEST_WaitForFlushMemTable();
+  ASSERT_EQ("1", FilesPerLevel());
+
+  // Generate one more file in level-0, and should trigger level-0 compaction
+  for (int idx = 11; idx < 22; ++idx) {
+    ASSERT_OK(Put(Key(idx), std::string(10000, 'a' + idx)));
+  }
+  dbfull()->TEST_WaitForFlushMemTable();
+  ASSERT_EQ("2", FilesPerLevel());
+
+  dbfull()->TEST_CompactRange(0, nullptr, nullptr);
+  ASSERT_EQ("0,2", FilesPerLevel());
+  for (int idx = 0; idx < 22; ++idx) {
+    ASSERT_EQ(std::string(10000, 'a' + idx), Get(Key(idx)));
+  }
+}
+
+TEST(CuckooTableDBTest, CompactionIntoMultipleFiles) {
   // Create a big L0 file and check it compacts into multiple files in L1.
   Options options = CurrentOptions();
   options.write_buffer_size = 270 << 10;
@@ -244,15 +271,14 @@ TEST_F(CuckooTableDBTest, CompactionIntoMultipleFiles) {
   dbfull()->TEST_WaitForFlushMemTable();
   ASSERT_EQ("1", FilesPerLevel());
 
-  dbfull()->TEST_CompactRange(0, nullptr, nullptr, nullptr,
-                              true /* disallow trivial move */);
+  dbfull()->TEST_CompactRange(0, nullptr, nullptr);
   ASSERT_EQ("0,2", FilesPerLevel());
   for (int idx = 0; idx < 28; ++idx) {
     ASSERT_EQ(std::string(10000, 'a' + idx), Get(Key(idx)));
   }
 }
 
-TEST_F(CuckooTableDBTest, SameKeyInsertedInTwoDifferentFilesAndCompacted) {
+TEST(CuckooTableDBTest, SameKeyInsertedInTwoDifferentFilesAndCompacted) {
   // Insert same key twice so that they go to different SST files. Then wait for
   // compaction and check if the latest value is stored and old value removed.
   Options options = CurrentOptions();
@@ -280,7 +306,7 @@ TEST_F(CuckooTableDBTest, SameKeyInsertedInTwoDifferentFilesAndCompacted) {
   }
 }
 
-TEST_F(CuckooTableDBTest, AdaptiveTable) {
+TEST(CuckooTableDBTest, AdaptiveTable) {
   Options options = CurrentOptions();
 
   // Write some keys using cuckoo table.
@@ -317,17 +343,4 @@ TEST_F(CuckooTableDBTest, AdaptiveTable) {
 }
 }  // namespace rocksdb
 
-int main(int argc, char** argv) {
-  ::testing::InitGoogleTest(&argc, argv);
-  return RUN_ALL_TESTS();
-}
-
-#else
-#include <stdio.h>
-
-int main(int argc, char** argv) {
-  fprintf(stderr, "SKIPPED as Cuckoo table is not supported in ROCKSDB_LITE\n");
-  return 0;
-}
-
-#endif  // ROCKSDB_LITE
+int main(int argc, char** argv) { return rocksdb::test::RunAllTests(); }

db/db_block_cache_test.cc

@@ -1,237 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under the BSD-style license found in the
-//  LICENSE file in the root directory of this source tree. An additional grant
-//  of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-#include <cstdlib>
-#include "db/db_test_util.h"
-#include "port/stack_trace.h"
-
-namespace rocksdb {
-
-static uint64_t TestGetTickerCount(const Options& options,
-                                   Tickers ticker_type) {
-  return options.statistics->getTickerCount(ticker_type);
-}
-
-class DBBlockCacheTest : public DBTestBase {
- private:
-  size_t miss_count_ = 0;
-  size_t hit_count_ = 0;
-  size_t insert_count_ = 0;
-  size_t failure_count_ = 0;
-  size_t compressed_miss_count_ = 0;
-  size_t compressed_hit_count_ = 0;
-  size_t compressed_insert_count_ = 0;
-  size_t compressed_failure_count_ = 0;
-
- public:
-  const size_t kNumBlocks = 10;
-  const size_t kValueSize = 100;
-
-  DBBlockCacheTest() : DBTestBase("/db_block_cache_test") {}
-
-  BlockBasedTableOptions GetTableOptions() {
-    BlockBasedTableOptions table_options;
-    // Set a small enough block size so that each key-value get its own block.
-    table_options.block_size = 1;
-    return table_options;
-  }
-
-  Options GetOptions(const BlockBasedTableOptions& table_options) {
-    Options options = CurrentOptions();
-    options.create_if_missing = true;
-    // options.compression = kNoCompression;
-    options.statistics = rocksdb::CreateDBStatistics();
-    options.table_factory.reset(new BlockBasedTableFactory(table_options));
-    return options;
-  }
-
-  void InitTable(const Options& options) {
-    std::string value(kValueSize, 'a');
-    for (size_t i = 0; i < kNumBlocks; i++) {
-      ASSERT_OK(Put(ToString(i), value.c_str()));
-    }
-  }
-
-  void RecordCacheCounters(const Options& options) {
-    miss_count_ = TestGetTickerCount(options, BLOCK_CACHE_MISS);
-    hit_count_ = TestGetTickerCount(options, BLOCK_CACHE_HIT);
-    insert_count_ = TestGetTickerCount(options, BLOCK_CACHE_ADD);
-    failure_count_ = TestGetTickerCount(options, BLOCK_CACHE_ADD_FAILURES);
-    compressed_miss_count_ =
-        TestGetTickerCount(options, BLOCK_CACHE_COMPRESSED_MISS);
-    compressed_hit_count_ =
-        TestGetTickerCount(options, BLOCK_CACHE_COMPRESSED_HIT);
-    compressed_insert_count_ =
-        TestGetTickerCount(options, BLOCK_CACHE_COMPRESSED_ADD);
-    compressed_failure_count_ =
-        TestGetTickerCount(options, BLOCK_CACHE_COMPRESSED_ADD_FAILURES);
-  }
-
-  void CheckCacheCounters(const Options& options, size_t expected_misses,
-                          size_t expected_hits, size_t expected_inserts,
-                          size_t expected_failures) {
-    size_t new_miss_count = TestGetTickerCount(options, BLOCK_CACHE_MISS);
-    size_t new_hit_count = TestGetTickerCount(options, BLOCK_CACHE_HIT);
-    size_t new_insert_count = TestGetTickerCount(options, BLOCK_CACHE_ADD);
-    size_t new_failure_count =
-        TestGetTickerCount(options, BLOCK_CACHE_ADD_FAILURES);
-    ASSERT_EQ(miss_count_ + expected_misses, new_miss_count);
-    ASSERT_EQ(hit_count_ + expected_hits, new_hit_count);
-    ASSERT_EQ(insert_count_ + expected_inserts, new_insert_count);
-    ASSERT_EQ(failure_count_ + expected_failures, new_failure_count);
-    miss_count_ = new_miss_count;
-    hit_count_ = new_hit_count;
-    insert_count_ = new_insert_count;
-    failure_count_ = new_failure_count;
-  }
-
-  void CheckCompressedCacheCounters(const Options& options,
-                                    size_t expected_misses,
-                                    size_t expected_hits,
-                                    size_t expected_inserts,
-                                    size_t expected_failures) {
-    size_t new_miss_count =
-        TestGetTickerCount(options, BLOCK_CACHE_COMPRESSED_MISS);
-    size_t new_hit_count =
-        TestGetTickerCount(options, BLOCK_CACHE_COMPRESSED_HIT);
-    size_t new_insert_count =
-        TestGetTickerCount(options, BLOCK_CACHE_COMPRESSED_ADD);
-    size_t new_failure_count =
-        TestGetTickerCount(options, BLOCK_CACHE_COMPRESSED_ADD_FAILURES);
-    ASSERT_EQ(compressed_miss_count_ + expected_misses, new_miss_count);
-    ASSERT_EQ(compressed_hit_count_ + expected_hits, new_hit_count);
-    ASSERT_EQ(compressed_insert_count_ + expected_inserts, new_insert_count);
-    ASSERT_EQ(compressed_failure_count_ + expected_failures, new_failure_count);
-    compressed_miss_count_ = new_miss_count;
-    compressed_hit_count_ = new_hit_count;
-    compressed_insert_count_ = new_insert_count;
-    compressed_failure_count_ = new_failure_count;
-  }
-};
-
-TEST_F(DBBlockCacheTest, TestWithoutCompressedBlockCache) {
-  ReadOptions read_options;
-  auto table_options = GetTableOptions();
-  auto options = GetOptions(table_options);
-  InitTable(options);
-
-  std::shared_ptr<Cache> cache = NewLRUCache(0, 0, false);
-  table_options.block_cache = cache;
-  options.table_factory.reset(new BlockBasedTableFactory(table_options));
-  Reopen(options);
-  RecordCacheCounters(options);
-
-  std::vector<std::unique_ptr<Iterator>> iterators(kNumBlocks - 1);
-  Iterator* iter = nullptr;
-
-  // Load blocks into cache.
-  for (size_t i = 0; i < kNumBlocks - 1; i++) {
-    iter = db_->NewIterator(read_options);
-    iter->Seek(ToString(i));
-    ASSERT_OK(iter->status());
-    CheckCacheCounters(options, 1, 0, 1, 0);
-    iterators[i].reset(iter);
-  }
-  size_t usage = cache->GetUsage();
-  ASSERT_LT(0, usage);
-  cache->SetCapacity(usage);
-  ASSERT_EQ(usage, cache->GetPinnedUsage());
-
-  // Test with strict capacity limit.
-  cache->SetStrictCapacityLimit(true);
-  iter = db_->NewIterator(read_options);
-  iter->Seek(ToString(kNumBlocks - 1));
-  ASSERT_TRUE(iter->status().IsIncomplete());
-  CheckCacheCounters(options, 1, 0, 0, 1);
-  delete iter;
-  iter = nullptr;
-
-  // Release interators and access cache again.
-  for (size_t i = 0; i < kNumBlocks - 1; i++) {
-    iterators[i].reset();
-    CheckCacheCounters(options, 0, 0, 0, 0);
-  }
-  ASSERT_EQ(0, cache->GetPinnedUsage());
-  for (size_t i = 0; i < kNumBlocks - 1; i++) {
-    iter = db_->NewIterator(read_options);
-    iter->Seek(ToString(i));
-    ASSERT_OK(iter->status());
-    CheckCacheCounters(options, 0, 1, 0, 0);
-    iterators[i].reset(iter);
-  }
-}
-
-TEST_F(DBBlockCacheTest, TestWithCompressedBlockCache) {
-  ReadOptions read_options;
-  auto table_options = GetTableOptions();
-  auto options = GetOptions(table_options);
-  InitTable(options);
-
-  std::shared_ptr<Cache> cache = NewLRUCache(0, 0, false);
-  std::shared_ptr<Cache> compressed_cache = NewLRUCache(0, 0, false);
-  table_options.block_cache = cache;
-  table_options.block_cache_compressed = compressed_cache;
-  options.table_factory.reset(new BlockBasedTableFactory(table_options));
-  Reopen(options);
-  RecordCacheCounters(options);
-
-  std::vector<std::unique_ptr<Iterator>> iterators(kNumBlocks - 1);
-  Iterator* iter = nullptr;
-
-  // Load blocks into cache.
-  for (size_t i = 0; i < kNumBlocks - 1; i++) {
-    iter = db_->NewIterator(read_options);
-    iter->Seek(ToString(i));
-    ASSERT_OK(iter->status());
-    CheckCacheCounters(options, 1, 0, 1, 0);
-    CheckCompressedCacheCounters(options, 1, 0, 1, 0);
-    iterators[i].reset(iter);
-  }
-  size_t usage = cache->GetUsage();
-  ASSERT_LT(0, usage);
-  ASSERT_EQ(usage, cache->GetPinnedUsage());
-  size_t compressed_usage = compressed_cache->GetUsage();
-  ASSERT_LT(0, compressed_usage);
-  // Compressed block cache cannot be pinned.
-  ASSERT_EQ(0, compressed_cache->GetPinnedUsage());
-
-  // Set strict capacity limit flag. Now block will only load into compressed
-  // block cache.
-  cache->SetCapacity(usage);
-  cache->SetStrictCapacityLimit(true);
-  ASSERT_EQ(usage, cache->GetPinnedUsage());
-  // compressed_cache->SetCapacity(compressed_usage);
-  compressed_cache->SetCapacity(0);
-  // compressed_cache->SetStrictCapacityLimit(true);
-  iter = db_->NewIterator(read_options);
-  iter->Seek(ToString(kNumBlocks - 1));
-  ASSERT_TRUE(iter->status().IsIncomplete());
-  CheckCacheCounters(options, 1, 0, 0, 1);
-  CheckCompressedCacheCounters(options, 1, 0, 1, 0);
-  delete iter;
-  iter = nullptr;
-
-  // Clear strict capacity limit flag. This time we shall hit compressed block
-  // cache.
-  cache->SetStrictCapacityLimit(false);
-  iter = db_->NewIterator(read_options);
-  iter->Seek(ToString(kNumBlocks - 1));
-  ASSERT_OK(iter->status());
-  CheckCacheCounters(options, 1, 0, 1, 0);
-  CheckCompressedCacheCounters(options, 0, 1, 0, 0);
-  delete iter;
-  iter = nullptr;
-}
-
-}  // namespace rocksdb
-
-int main(int argc, char** argv) {
-  rocksdb::port::InstallStackTraceHandler();
-  ::testing::InitGoogleTest(&argc, argv);
-  return RUN_ALL_TESTS();
-}

db/db_compaction_filter_test.cc

@@ -1,726 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under the BSD-style license found in the
-//  LICENSE file in the root directory of this source tree. An additional grant
-//  of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "db/db_test_util.h"
-#include "port/stack_trace.h"
-
-namespace rocksdb {
-
-static int cfilter_count = 0;
-
-// This is a static filter used for filtering
-// kvs during the compaction process.
-static std::string NEW_VALUE = "NewValue";
-
-class DBTestCompactionFilter : public DBTestBase {
- public:
-  DBTestCompactionFilter() : DBTestBase("/db_compaction_filter_test") {}
-};
-
-class KeepFilter : public CompactionFilter {
- public:
-  virtual bool Filter(int level, const Slice& key, const Slice& value,
-                      std::string* new_value, bool* value_changed) const
-      override {
-    cfilter_count++;
-    return false;
-  }
-
-  virtual const char* Name() const override { return "KeepFilter"; }
-};
-
-class DeleteFilter : public CompactionFilter {
- public:
-  virtual bool Filter(int level, const Slice& key, const Slice& value,
-                      std::string* new_value, bool* value_changed) const
-      override {
-    cfilter_count++;
-    return true;
-  }
-
-  virtual const char* Name() const override { return "DeleteFilter"; }
-};
-
-class DeleteISFilter : public CompactionFilter {
- public:
-  virtual bool Filter(int level, const Slice& key, const Slice& value,
-                      std::string* new_value,
-                      bool* value_changed) const override {
-    cfilter_count++;
-    int i = std::stoi(key.ToString());
-    if (i > 5 && i <= 105) {
-      return true;
-    }
-    return false;
-  }
-
-  virtual bool IgnoreSnapshots() const override { return true; }
-
-  virtual const char* Name() const override { return "DeleteFilter"; }
-};
-
-class DelayFilter : public CompactionFilter {
- public:
-  explicit DelayFilter(DBTestBase* d) : db_test(d) {}
-  virtual bool Filter(int level, const Slice& key, const Slice& value,
-                      std::string* new_value,
-                      bool* value_changed) const override {
-    db_test->env_->addon_time_.fetch_add(1000);
-    return true;
-  }
-
-  virtual const char* Name() const override { return "DelayFilter"; }
-
- private:
-  DBTestBase* db_test;
-};
-
-class ConditionalFilter : public CompactionFilter {
- public:
-  explicit ConditionalFilter(const std::string* filtered_value)
-      : filtered_value_(filtered_value) {}
-  virtual bool Filter(int level, const Slice& key, const Slice& value,
-                      std::string* new_value,
-                      bool* value_changed) const override {
-    return value.ToString() == *filtered_value_;
-  }
-
-  virtual const char* Name() const override { return "ConditionalFilter"; }
-
- private:
-  const std::string* filtered_value_;
-};
-
-class ChangeFilter : public CompactionFilter {
- public:
-  explicit ChangeFilter() {}
-
-  virtual bool Filter(int level, const Slice& key, const Slice& value,
-                      std::string* new_value, bool* value_changed) const
-      override {
-    assert(new_value != nullptr);
-    *new_value = NEW_VALUE;
-    *value_changed = true;
-    return false;
-  }
-
-  virtual const char* Name() const override { return "ChangeFilter"; }
-};
-
-class KeepFilterFactory : public CompactionFilterFactory {
- public:
-  explicit KeepFilterFactory(bool check_context = false,
-                             bool check_context_cf_id = false)
-      : check_context_(check_context),
-        check_context_cf_id_(check_context_cf_id),
-        compaction_filter_created_(false) {}
-
-  virtual std::unique_ptr<CompactionFilter> CreateCompactionFilter(
-      const CompactionFilter::Context& context) override {
-    if (check_context_) {
-      EXPECT_EQ(expect_full_compaction_.load(), context.is_full_compaction);
-      EXPECT_EQ(expect_manual_compaction_.load(), context.is_manual_compaction);
-    }
-    if (check_context_cf_id_) {
-      EXPECT_EQ(expect_cf_id_.load(), context.column_family_id);
-    }
-    compaction_filter_created_ = true;
-    return std::unique_ptr<CompactionFilter>(new KeepFilter());
-  }
-
-  bool compaction_filter_created() const { return compaction_filter_created_; }
-
-  virtual const char* Name() const override { return "KeepFilterFactory"; }
-  bool check_context_;
-  bool check_context_cf_id_;
-  std::atomic_bool expect_full_compaction_;
-  std::atomic_bool expect_manual_compaction_;
-  std::atomic<uint32_t> expect_cf_id_;
-  bool compaction_filter_created_;
-};
-
-class DeleteFilterFactory : public CompactionFilterFactory {
- public:
-  virtual std::unique_ptr<CompactionFilter> CreateCompactionFilter(
-      const CompactionFilter::Context& context) override {
-    if (context.is_manual_compaction) {
-      return std::unique_ptr<CompactionFilter>(new DeleteFilter());
-    } else {
-      return std::unique_ptr<CompactionFilter>(nullptr);
-    }
-  }
-
-  virtual const char* Name() const override { return "DeleteFilterFactory"; }
-};
-
-// Delete Filter Factory which ignores snapshots
-class DeleteISFilterFactory : public CompactionFilterFactory {
- public:
-  virtual std::unique_ptr<CompactionFilter> CreateCompactionFilter(
-      const CompactionFilter::Context& context) override {
-    if (context.is_manual_compaction) {
-      return std::unique_ptr<CompactionFilter>(new DeleteISFilter());
-    } else {
-      return std::unique_ptr<CompactionFilter>(nullptr);
-    }
-  }
-
-  virtual const char* Name() const override { return "DeleteFilterFactory"; }
-};
-
-class DelayFilterFactory : public CompactionFilterFactory {
- public:
-  explicit DelayFilterFactory(DBTestBase* d) : db_test(d) {}
-  virtual std::unique_ptr<CompactionFilter> CreateCompactionFilter(
-      const CompactionFilter::Context& context) override {
-    return std::unique_ptr<CompactionFilter>(new DelayFilter(db_test));
-  }
-
-  virtual const char* Name() const override { return "DelayFilterFactory"; }
-
- private:
-  DBTestBase* db_test;
-};
-
-class ConditionalFilterFactory : public CompactionFilterFactory {
- public:
-  explicit ConditionalFilterFactory(const Slice& filtered_value)
-      : filtered_value_(filtered_value.ToString()) {}
-
-  virtual std::unique_ptr<CompactionFilter> CreateCompactionFilter(
-      const CompactionFilter::Context& context) override {
-    return std::unique_ptr<CompactionFilter>(
-        new ConditionalFilter(&filtered_value_));
-  }
-
-  virtual const char* Name() const override {
-    return "ConditionalFilterFactory";
-  }
-
- private:
-  std::string filtered_value_;
-};
-
-class ChangeFilterFactory : public CompactionFilterFactory {
- public:
-  explicit ChangeFilterFactory() {}
-
-  virtual std::unique_ptr<CompactionFilter> CreateCompactionFilter(
-      const CompactionFilter::Context& context) override {
-    return std::unique_ptr<CompactionFilter>(new ChangeFilter());
-  }
-
-  virtual const char* Name() const override { return "ChangeFilterFactory"; }
-};
-
-#ifndef ROCKSDB_LITE
-TEST_F(DBTestCompactionFilter, CompactionFilter) {
-  Options options = CurrentOptions();
-  options.max_open_files = -1;
-  options.num_levels = 3;
-  options.compaction_filter_factory = std::make_shared<KeepFilterFactory>();
-  options = CurrentOptions(options);
-  CreateAndReopenWithCF({"pikachu"}, options);
-
-  // Write 100K keys, these are written to a few files in L0.
-  const std::string value(10, 'x');
-  for (int i = 0; i < 100000; i++) {
-    char key[100];
-    snprintf(key, sizeof(key), "B%010d", i);
-    Put(1, key, value);
-  }
-  ASSERT_OK(Flush(1));
-
-  // Push all files to the highest level L2. Verify that
-  // the compaction is each level invokes the filter for
-  // all the keys in that level.
-  cfilter_count = 0;
-  dbfull()->TEST_CompactRange(0, nullptr, nullptr, handles_[1]);
-  ASSERT_EQ(cfilter_count, 100000);
-  cfilter_count = 0;
-  dbfull()->TEST_CompactRange(1, nullptr, nullptr, handles_[1]);
-  ASSERT_EQ(cfilter_count, 100000);
-
-  ASSERT_EQ(NumTableFilesAtLevel(0, 1), 0);
-  ASSERT_EQ(NumTableFilesAtLevel(1, 1), 0);
-  ASSERT_NE(NumTableFilesAtLevel(2, 1), 0);
-  cfilter_count = 0;
-
-  // All the files are in the lowest level.
-  // Verify that all but the 100001st record
-  // has sequence number zero. The 100001st record
-  // is at the tip of this snapshot and cannot
-  // be zeroed out.
-  int count = 0;
-  int total = 0;
-  Arena arena;
-  {
-    ScopedArenaIterator iter(
-        dbfull()->NewInternalIterator(&arena, handles_[1]));
-    iter->SeekToFirst();
-    ASSERT_OK(iter->status());
-    while (iter->Valid()) {
-      ParsedInternalKey ikey(Slice(), 0, kTypeValue);
-      ikey.sequence = -1;
-      ASSERT_EQ(ParseInternalKey(iter->key(), &ikey), true);
-      total++;
-      if (ikey.sequence != 0) {
-        count++;
-      }
-      iter->Next();
-    }
-  }
-  ASSERT_EQ(total, 100000);
-  ASSERT_EQ(count, 1);
-
-  // overwrite all the 100K keys once again.
-  for (int i = 0; i < 100000; i++) {
-    char key[100];
-    snprintf(key, sizeof(key), "B%010d", i);
-    ASSERT_OK(Put(1, key, value));
-  }
-  ASSERT_OK(Flush(1));
-
-  // push all files to the highest level L2. This
-  // means that all keys should pass at least once
-  // via the compaction filter
-  cfilter_count = 0;
-  dbfull()->TEST_CompactRange(0, nullptr, nullptr, handles_[1]);
-  ASSERT_EQ(cfilter_count, 100000);
-  cfilter_count = 0;
-  dbfull()->TEST_CompactRange(1, nullptr, nullptr, handles_[1]);
-  ASSERT_EQ(cfilter_count, 100000);
-  ASSERT_EQ(NumTableFilesAtLevel(0, 1), 0);
-  ASSERT_EQ(NumTableFilesAtLevel(1, 1), 0);
-  ASSERT_NE(NumTableFilesAtLevel(2, 1), 0);
-
-  // create a new database with the compaction
-  // filter in such a way that it deletes all keys
-  options.compaction_filter_factory = std::make_shared<DeleteFilterFactory>();
-  options.create_if_missing = true;
-  DestroyAndReopen(options);
-  CreateAndReopenWithCF({"pikachu"}, options);
-
-  // write all the keys once again.
-  for (int i = 0; i < 100000; i++) {
-    char key[100];
-    snprintf(key, sizeof(key), "B%010d", i);
-    ASSERT_OK(Put(1, key, value));
-  }
-  ASSERT_OK(Flush(1));
-  ASSERT_NE(NumTableFilesAtLevel(0, 1), 0);
-  ASSERT_EQ(NumTableFilesAtLevel(1, 1), 0);
-  ASSERT_EQ(NumTableFilesAtLevel(2, 1), 0);
-
-  // Push all files to the highest level L2. This
-  // triggers the compaction filter to delete all keys,
-  // verify that at the end of the compaction process,
-  // nothing is left.
-  cfilter_count = 0;
-  dbfull()->TEST_CompactRange(0, nullptr, nullptr, handles_[1]);
-  ASSERT_EQ(cfilter_count, 100000);
-  cfilter_count = 0;
-  dbfull()->TEST_CompactRange(1, nullptr, nullptr, handles_[1]);
-  ASSERT_EQ(cfilter_count, 0);
-  ASSERT_EQ(NumTableFilesAtLevel(0, 1), 0);
-  ASSERT_EQ(NumTableFilesAtLevel(1, 1), 0);
-
-  {
-    // Scan the entire database to ensure that nothing is left
-    std::unique_ptr<Iterator> iter(
-        db_->NewIterator(ReadOptions(), handles_[1]));
-    iter->SeekToFirst();
-    count = 0;
-    while (iter->Valid()) {
-      count++;
-      iter->Next();
-    }
-    ASSERT_EQ(count, 0);
-  }
-
-  // The sequence number of the remaining record
-  // is not zeroed out even though it is at the
-  // level Lmax because this record is at the tip
-  count = 0;
-  {
-    ScopedArenaIterator iter(
-        dbfull()->NewInternalIterator(&arena, handles_[1]));
-    iter->SeekToFirst();
-    ASSERT_OK(iter->status());
-    while (iter->Valid()) {
-      ParsedInternalKey ikey(Slice(), 0, kTypeValue);
-      ASSERT_EQ(ParseInternalKey(iter->key(), &ikey), true);
-      ASSERT_NE(ikey.sequence, (unsigned)0);
-      count++;
-      iter->Next();
-    }
-    ASSERT_EQ(count, 0);
-  }
-}
-
-// Tests the edge case where compaction does not produce any output -- all
-// entries are deleted. The compaction should create bunch of 'DeleteFile'
-// entries in VersionEdit, but none of the 'AddFile's.
-TEST_F(DBTestCompactionFilter, CompactionFilterDeletesAll) {
-  Options options;
-  options.compaction_filter_factory = std::make_shared<DeleteFilterFactory>();
-  options.disable_auto_compactions = true;
-  options.create_if_missing = true;
-  options = CurrentOptions(options);
-  DestroyAndReopen(options);
-
-  // put some data
-  for (int table = 0; table < 4; ++table) {
-    for (int i = 0; i < 10 + table; ++i) {
-      Put(ToString(table * 100 + i), "val");
-    }
-    Flush();
-  }
-
-  // this will produce empty file (delete compaction filter)
-  ASSERT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
-  ASSERT_EQ(0U, CountLiveFiles());
-
-  Reopen(options);
-
-  Iterator* itr = db_->NewIterator(ReadOptions());
-  itr->SeekToFirst();
-  // empty db
-  ASSERT_TRUE(!itr->Valid());
-
-  delete itr;
-}
-#endif  // ROCKSDB_LITE
-
-TEST_F(DBTestCompactionFilter, CompactionFilterWithValueChange) {
-  do {
-    Options options;
-    options.num_levels = 3;
-    options.compaction_filter_factory =
-      std::make_shared<ChangeFilterFactory>();
-    options = CurrentOptions(options);
-    CreateAndReopenWithCF({"pikachu"}, options);
-
-    // Write 100K+1 keys, these are written to a few files
-    // in L0. We do this so that the current snapshot points
-    // to the 100001 key.The compaction filter is  not invoked
-    // on keys that are visible via a snapshot because we
-    // anyways cannot delete it.
-    const std::string value(10, 'x');
-    for (int i = 0; i < 100001; i++) {
-      char key[100];
-      snprintf(key, sizeof(key), "B%010d", i);
-      Put(1, key, value);
-    }
-
-    // push all files to  lower levels
-    ASSERT_OK(Flush(1));
-    if (option_config_ != kUniversalCompactionMultiLevel &&
-        option_config_ != kUniversalSubcompactions) {
-      dbfull()->TEST_CompactRange(0, nullptr, nullptr, handles_[1]);
-      dbfull()->TEST_CompactRange(1, nullptr, nullptr, handles_[1]);
-    } else {
-      dbfull()->CompactRange(CompactRangeOptions(), handles_[1], nullptr,
-                             nullptr);
-    }
-
-    // re-write all data again
-    for (int i = 0; i < 100001; i++) {
-      char key[100];
-      snprintf(key, sizeof(key), "B%010d", i);
-      Put(1, key, value);
-    }
-
-    // push all files to  lower levels. This should
-    // invoke the compaction filter for all 100000 keys.
-    ASSERT_OK(Flush(1));
-    if (option_config_ != kUniversalCompactionMultiLevel &&
-        option_config_ != kUniversalSubcompactions) {
-      dbfull()->TEST_CompactRange(0, nullptr, nullptr, handles_[1]);
-      dbfull()->TEST_CompactRange(1, nullptr, nullptr, handles_[1]);
-    } else {
-      dbfull()->CompactRange(CompactRangeOptions(), handles_[1], nullptr,
-                             nullptr);
-    }
-
-    // verify that all keys now have the new value that
-    // was set by the compaction process.
-    for (int i = 0; i < 100001; i++) {
-      char key[100];
-      snprintf(key, sizeof(key), "B%010d", i);
-      std::string newvalue = Get(1, key);
-      ASSERT_EQ(newvalue.compare(NEW_VALUE), 0);
-    }
-  } while (ChangeCompactOptions());
-}
-
-TEST_F(DBTestCompactionFilter, CompactionFilterWithMergeOperator) {
-  std::string one, two, three, four;
-  PutFixed64(&one, 1);
-  PutFixed64(&two, 2);
-  PutFixed64(&three, 3);
-  PutFixed64(&four, 4);
-
-  Options options;
-  options = CurrentOptions(options);
-  options.create_if_missing = true;
-  options.merge_operator = MergeOperators::CreateUInt64AddOperator();
-  options.num_levels = 3;
-  // Filter out keys with value is 2.
-  options.compaction_filter_factory =
-      std::make_shared<ConditionalFilterFactory>(two);
-  DestroyAndReopen(options);
-
-  // In the same compaction, a value type needs to be deleted based on
-  // compaction filter, and there is a merge type for the key. compaction
-  // filter result is ignored.
-  ASSERT_OK(db_->Put(WriteOptions(), "foo", two));
-  ASSERT_OK(Flush());
-  ASSERT_OK(db_->Merge(WriteOptions(), "foo", one));
-  ASSERT_OK(Flush());
-  std::string newvalue = Get("foo");
-  ASSERT_EQ(newvalue, three);
-  dbfull()->CompactRange(CompactRangeOptions(), nullptr, nullptr);
-  newvalue = Get("foo");
-  ASSERT_EQ(newvalue, three);
-
-  // value key can be deleted based on compaction filter, leaving only
-  // merge keys.
-  ASSERT_OK(db_->Put(WriteOptions(), "bar", two));
-  ASSERT_OK(Flush());
-  dbfull()->CompactRange(CompactRangeOptions(), nullptr, nullptr);
-  newvalue = Get("bar");
-  ASSERT_EQ("NOT_FOUND", newvalue);
-  ASSERT_OK(db_->Merge(WriteOptions(), "bar", two));
-  ASSERT_OK(Flush());
-  dbfull()->CompactRange(CompactRangeOptions(), nullptr, nullptr);
-  newvalue = Get("bar");
-  ASSERT_EQ(two, two);
-
-  // Compaction filter never applies to merge keys.
-  ASSERT_OK(db_->Put(WriteOptions(), "foobar", one));
-  ASSERT_OK(Flush());
-  ASSERT_OK(db_->Merge(WriteOptions(), "foobar", two));
-  ASSERT_OK(Flush());
-  newvalue = Get("foobar");
-  ASSERT_EQ(newvalue, three);
-  dbfull()->CompactRange(CompactRangeOptions(), nullptr, nullptr);
-  newvalue = Get("foobar");
-  ASSERT_EQ(newvalue, three);
-
-  // In the same compaction, both of value type and merge type keys need to be
-  // deleted based on compaction filter, and there is a merge type for the key.
-  // For both keys, compaction filter results are ignored.
-  ASSERT_OK(db_->Put(WriteOptions(), "barfoo", two));
-  ASSERT_OK(Flush());
-  ASSERT_OK(db_->Merge(WriteOptions(), "barfoo", two));
-  ASSERT_OK(Flush());
-  newvalue = Get("barfoo");
-  ASSERT_EQ(newvalue, four);
-  dbfull()->CompactRange(CompactRangeOptions(), nullptr, nullptr);
-  newvalue = Get("barfoo");
-  ASSERT_EQ(newvalue, four);
-}
-
-#ifndef ROCKSDB_LITE
-TEST_F(DBTestCompactionFilter, CompactionFilterContextManual) {
-  KeepFilterFactory* filter = new KeepFilterFactory(true, true);
-
-  Options options = CurrentOptions();
-  options.compaction_style = kCompactionStyleUniversal;
-  options.compaction_filter_factory.reset(filter);
-  options.compression = kNoCompression;
-  options.level0_file_num_compaction_trigger = 8;
-  Reopen(options);
-  int num_keys_per_file = 400;
-  for (int j = 0; j < 3; j++) {
-    // Write several keys.
-    const std::string value(10, 'x');
-    for (int i = 0; i < num_keys_per_file; i++) {
-      char key[100];
-      snprintf(key, sizeof(key), "B%08d%02d", i, j);
-      Put(key, value);
-    }
-    dbfull()->TEST_FlushMemTable();
-    // Make sure next file is much smaller so automatic compaction will not
-    // be triggered.
-    num_keys_per_file /= 2;
-  }
-  dbfull()->TEST_WaitForCompact();
-
-  // Force a manual compaction
-  cfilter_count = 0;
-  filter->expect_manual_compaction_.store(true);
-  filter->expect_full_compaction_.store(true);
-  filter->expect_cf_id_.store(0);
-  dbfull()->CompactRange(CompactRangeOptions(), nullptr, nullptr);
-  ASSERT_EQ(cfilter_count, 700);
-  ASSERT_EQ(NumSortedRuns(0), 1);
-  ASSERT_TRUE(filter->compaction_filter_created());
-
-  // Verify total number of keys is correct after manual compaction.
-  {
-    int count = 0;
-    int total = 0;
-    Arena arena;
-    ScopedArenaIterator iter(dbfull()->NewInternalIterator(&arena));
-    iter->SeekToFirst();
-    ASSERT_OK(iter->status());
-    while (iter->Valid()) {
-      ParsedInternalKey ikey(Slice(), 0, kTypeValue);
-      ikey.sequence = -1;
-      ASSERT_EQ(ParseInternalKey(iter->key(), &ikey), true);
-      total++;
-      if (ikey.sequence != 0) {
-        count++;
-      }
-      iter->Next();
-    }
-    ASSERT_EQ(total, 700);
-    ASSERT_EQ(count, 2);
-  }
-}
-#endif  // ROCKSDB_LITE
-
-TEST_F(DBTestCompactionFilter, CompactionFilterContextCfId) {
-  KeepFilterFactory* filter = new KeepFilterFactory(false, true);
-  filter->expect_cf_id_.store(1);
-
-  Options options = CurrentOptions();
-  options.compaction_filter_factory.reset(filter);
-  options.compression = kNoCompression;
-  options.level0_file_num_compaction_trigger = 2;
-  CreateAndReopenWithCF({"pikachu"}, options);
-
-  int num_keys_per_file = 400;
-  for (int j = 0; j < 3; j++) {
-    // Write several keys.
-    const std::string value(10, 'x');
-    for (int i = 0; i < num_keys_per_file; i++) {
-      char key[100];
-      snprintf(key, sizeof(key), "B%08d%02d", i, j);
-      Put(1, key, value);
-    }
-    Flush(1);
-    // Make sure next file is much smaller so automatic compaction will not
-    // be triggered.
-    num_keys_per_file /= 2;
-  }
-  dbfull()->TEST_WaitForCompact();
-
-  ASSERT_TRUE(filter->compaction_filter_created());
-}
-
-#ifndef ROCKSDB_LITE
-// Compaction filters should only be applied to records that are newer than the
-// latest snapshot. This test inserts records and applies a delete filter.
-TEST_F(DBTestCompactionFilter, CompactionFilterSnapshot) {
-  Options options;
-  options.compaction_filter_factory = std::make_shared<DeleteFilterFactory>();
-  options.disable_auto_compactions = true;
-  options.create_if_missing = true;
-  options = CurrentOptions(options);
-  DestroyAndReopen(options);
-
-  // Put some data.
-  const Snapshot* snapshot = nullptr;
-  for (int table = 0; table < 4; ++table) {
-    for (int i = 0; i < 10; ++i) {
-      Put(ToString(table * 100 + i), "val");
-    }
-    Flush();
-
-    if (table == 0) {
-      snapshot = db_->GetSnapshot();
-    }
-  }
-  assert(snapshot != nullptr);
-
-  cfilter_count = 0;
-  ASSERT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
-  // The filter should delete 10 records.
-  ASSERT_EQ(30U, cfilter_count);
-
-  // Release the snapshot and compact again -> now all records should be
-  // removed.
-  db_->ReleaseSnapshot(snapshot);
-  ASSERT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
-  ASSERT_EQ(0U, CountLiveFiles());
-}
-
-// Compaction filters should only be applied to records that are newer than the
-// latest snapshot. However, if the compaction filter asks to ignore snapshots
-// records newer than the snapshot will also be processed
-TEST_F(DBTestCompactionFilter, CompactionFilterIgnoreSnapshot) {
-  std::string five = ToString(5);
-  Options options;
-  options.compaction_filter_factory = std::make_shared<DeleteISFilterFactory>();
-  options.disable_auto_compactions = true;
-  options.create_if_missing = true;
-  options = CurrentOptions(options);
-  DestroyAndReopen(options);
-
-  // Put some data.
-  const Snapshot* snapshot = nullptr;
-  for (int table = 0; table < 4; ++table) {
-    for (int i = 0; i < 10; ++i) {
-      Put(ToString(table * 100 + i), "val");
-    }
-    Flush();
-
-    if (table == 0) {
-      snapshot = db_->GetSnapshot();
-    }
-  }
-  assert(snapshot != nullptr);
-
-  cfilter_count = 0;
-  ASSERT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
-  // The filter should delete 40 records.
-  ASSERT_EQ(40U, cfilter_count);
-
-  {
-    // Scan the entire database as of the snapshot to ensure
-    // that nothing is left
-    ReadOptions read_options;
-    read_options.snapshot = snapshot;
-    std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
-    iter->SeekToFirst();
-    int count = 0;
-    while (iter->Valid()) {
-      count++;
-      iter->Next();
-    }
-    ASSERT_EQ(count, 6);
-    read_options.snapshot = 0;
-    std::unique_ptr<Iterator> iter1(db_->NewIterator(read_options));
-    iter1->SeekToFirst();
-    count = 0;
-    while (iter1->Valid()) {
-      count++;
-      iter1->Next();
-    }
-    // We have deleted 10 keys from 40 using the compaction filter
-    //  Keys 6-9 before the snapshot and 100-105 after the snapshot
-    ASSERT_EQ(count, 30);
-  }
-
-  // Release the snapshot and compact again -> now all records should be
-  // removed.
-  db_->ReleaseSnapshot(snapshot);
-}
-#endif  // ROCKSDB_LITE
-
-}  // namespace rocksdb
-
-int main(int argc, char** argv) {
-  rocksdb::port::InstallStackTraceHandler();
-  ::testing::InitGoogleTest(&argc, argv);
-  return RUN_ALL_TESTS();
-}

db/db_dynamic_level_test.cc

@@ -1,497 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under the BSD-style license found in the
-//  LICENSE file in the root directory of this source tree. An additional grant
-//  of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-// Introduction of SyncPoint effectively disabled building and running this test
-// in Release build.
-// which is a pity, it is a good test
-#if !defined(ROCKSDB_LITE)
-
-#include "db/db_test_util.h"
-#include "port/stack_trace.h"
-
-namespace rocksdb {
-class DBTestDynamicLevel : public DBTestBase {
- public:
-  DBTestDynamicLevel() : DBTestBase("/db_dynamic_level_test") {}
-};
-
-TEST_F(DBTestDynamicLevel, DynamicLevelMaxBytesBase) {
-  if (!Snappy_Supported() || !LZ4_Supported()) {
-    return;
-  }
-  // Use InMemoryEnv, or it would be too slow.
-  unique_ptr<Env> env(new MockEnv(env_));
-
-  const int kNKeys = 1000;
-  int keys[kNKeys];
-
-  auto verify_func = [&]() {
-    for (int i = 0; i < kNKeys; i++) {
-      ASSERT_NE("NOT_FOUND", Get(Key(i)));
-      ASSERT_NE("NOT_FOUND", Get(Key(kNKeys * 2 + i)));
-      if (i < kNKeys / 10) {
-        ASSERT_EQ("NOT_FOUND", Get(Key(kNKeys + keys[i])));
-      } else {
-        ASSERT_NE("NOT_FOUND", Get(Key(kNKeys + keys[i])));
-      }
-    }
-  };
-
-  Random rnd(301);
-  for (int ordered_insert = 0; ordered_insert <= 1; ordered_insert++) {
-    for (int i = 0; i < kNKeys; i++) {
-      keys[i] = i;
-    }
-    if (ordered_insert == 0) {
-      std::random_shuffle(std::begin(keys), std::end(keys));
-    }
-    for (int max_background_compactions = 1; max_background_compactions < 4;
-         max_background_compactions += 2) {
-      Options options;
-      options.env = env.get();
-      options.create_if_missing = true;
-      options.db_write_buffer_size = 2048;
-      options.write_buffer_size = 2048;
-      options.max_write_buffer_number = 2;
-      options.level0_file_num_compaction_trigger = 2;
-      options.level0_slowdown_writes_trigger = 2;
-      options.level0_stop_writes_trigger = 2;
-      options.target_file_size_base = 2048;
-      options.level_compaction_dynamic_level_bytes = true;
-      options.max_bytes_for_level_base = 10240;
-      options.max_bytes_for_level_multiplier = 4;
-      options.soft_rate_limit = 1.1;
-      options.max_background_compactions = max_background_compactions;
-      options.num_levels = 5;
-
-      options.compression_per_level.resize(3);
-      options.compression_per_level[0] = kNoCompression;
-      options.compression_per_level[1] = kLZ4Compression;
-      options.compression_per_level[2] = kSnappyCompression;
-
-      DestroyAndReopen(options);
-
-      for (int i = 0; i < kNKeys; i++) {
-        int key = keys[i];
-        ASSERT_OK(Put(Key(kNKeys + key), RandomString(&rnd, 102)));
-        ASSERT_OK(Put(Key(key), RandomString(&rnd, 102)));
-        ASSERT_OK(Put(Key(kNKeys * 2 + key), RandomString(&rnd, 102)));
-        ASSERT_OK(Delete(Key(kNKeys + keys[i / 10])));
-        env_->SleepForMicroseconds(5000);
-      }
-
-      uint64_t int_prop;
-      ASSERT_TRUE(db_->GetIntProperty("rocksdb.background-errors", &int_prop));
-      ASSERT_EQ(0U, int_prop);
-
-      // Verify DB
-      for (int j = 0; j < 2; j++) {
-        verify_func();
-        if (j == 0) {
-          Reopen(options);
-        }
-      }
-
-      // Test compact range works
-      dbfull()->CompactRange(CompactRangeOptions(), nullptr, nullptr);
-      // All data should be in the last level.
-      ColumnFamilyMetaData cf_meta;
-      db_->GetColumnFamilyMetaData(&cf_meta);
-      ASSERT_EQ(5U, cf_meta.levels.size());
-      for (int i = 0; i < 4; i++) {
-        ASSERT_EQ(0U, cf_meta.levels[i].files.size());
-      }
-      ASSERT_GT(cf_meta.levels[4U].files.size(), 0U);
-      verify_func();
-
-      Close();
-    }
-  }
-
-  env_->SetBackgroundThreads(1, Env::LOW);
-  env_->SetBackgroundThreads(1, Env::HIGH);
-}
-
-// Test specific cases in dynamic max bytes
-TEST_F(DBTestDynamicLevel, DynamicLevelMaxBytesBase2) {
-  Random rnd(301);
-  int kMaxKey = 1000000;
-
-  Options options = CurrentOptions();
-  options.create_if_missing = true;
-  options.db_write_buffer_size = 2048;
-  options.write_buffer_size = 2048;
-  options.max_write_buffer_number = 2;
-  options.level0_file_num_compaction_trigger = 2;
-  options.level0_slowdown_writes_trigger = 9999;
-  options.level0_stop_writes_trigger = 9999;
-  options.target_file_size_base = 2048;
-  options.level_compaction_dynamic_level_bytes = true;
-  options.max_bytes_for_level_base = 10240;
-  options.max_bytes_for_level_multiplier = 4;
-  options.max_background_compactions = 2;
-  options.num_levels = 5;
-  options.expanded_compaction_factor = 0;  // Force not expanding in compactions
-  BlockBasedTableOptions table_options;
-  table_options.block_size = 1024;
-  options.table_factory.reset(NewBlockBasedTableFactory(table_options));
-
-  DestroyAndReopen(options);
-  ASSERT_OK(dbfull()->SetOptions({
-      {"disable_auto_compactions", "true"},
-  }));
-
-  uint64_t int_prop;
-  std::string str_prop;
-
-  // Initial base level is the last level
-  ASSERT_TRUE(db_->GetIntProperty("rocksdb.base-level", &int_prop));
-  ASSERT_EQ(4U, int_prop);
-
-  // Put about 7K to L0
-  for (int i = 0; i < 70; i++) {
-    ASSERT_OK(Put(Key(static_cast<int>(rnd.Uniform(kMaxKey))),
-                  RandomString(&rnd, 80)));
-  }
-  ASSERT_OK(dbfull()->SetOptions({
-      {"disable_auto_compactions", "false"},
-  }));
-  Flush();
-  dbfull()->TEST_WaitForCompact();
-  ASSERT_TRUE(db_->GetIntProperty("rocksdb.base-level", &int_prop));
-  ASSERT_EQ(4U, int_prop);
-
-  // Insert extra about 3.5K to L0. After they are compacted to L4, base level
-  // should be changed to L3.
-  ASSERT_OK(dbfull()->SetOptions({
-      {"disable_auto_compactions", "true"},
-  }));
-  for (int i = 0; i < 70; i++) {
-    ASSERT_OK(Put(Key(static_cast<int>(rnd.Uniform(kMaxKey))),
-                  RandomString(&rnd, 80)));
-  }
-
-  ASSERT_OK(dbfull()->SetOptions({
-      {"disable_auto_compactions", "false"},
-  }));
-  Flush();
-  dbfull()->TEST_WaitForCompact();
-  ASSERT_TRUE(db_->GetIntProperty("rocksdb.base-level", &int_prop));
-  ASSERT_EQ(3U, int_prop);
-  ASSERT_TRUE(db_->GetProperty("rocksdb.num-files-at-level1", &str_prop));
-  ASSERT_EQ("0", str_prop);
-  ASSERT_TRUE(db_->GetProperty("rocksdb.num-files-at-level2", &str_prop));
-  ASSERT_EQ("0", str_prop);
-
-  // Trigger parallel compaction, and the first one would change the base
-  // level.
-  // Hold compaction jobs to make sure
-  rocksdb::SyncPoint::GetInstance()->SetCallBack(
-      "CompactionJob::Run():Start",
-      [&](void* arg) { env_->SleepForMicroseconds(100000); });
-  rocksdb::SyncPoint::GetInstance()->EnableProcessing();
-  ASSERT_OK(dbfull()->SetOptions({
-      {"disable_auto_compactions", "true"},
-  }));
-  // Write about 10K more
-  for (int i = 0; i < 100; i++) {
-    ASSERT_OK(Put(Key(static_cast<int>(rnd.Uniform(kMaxKey))),
-                  RandomString(&rnd, 80)));
-  }
-  ASSERT_OK(dbfull()->SetOptions({
-      {"disable_auto_compactions", "false"},
-  }));
-  Flush();
-  // Wait for 200 milliseconds before proceeding compactions to make sure two
-  // parallel ones are executed.
-  env_->SleepForMicroseconds(200000);
-  dbfull()->TEST_WaitForCompact();
-  ASSERT_TRUE(db_->GetIntProperty("rocksdb.base-level", &int_prop));
-  ASSERT_EQ(3U, int_prop);
-  rocksdb::SyncPoint::GetInstance()->DisableProcessing();
-
-  // Trigger a condition that the compaction changes base level and L0->Lbase
-  // happens at the same time.
-  // We try to make last levels' targets to be 10K, 40K, 160K, add triggers
-  // another compaction from 40K->160K.
-  ASSERT_OK(dbfull()->SetOptions({
-      {"disable_auto_compactions", "true"},
-  }));
-  // Write about 150K more
-  for (int i = 0; i < 1350; i++) {
-    ASSERT_OK(Put(Key(static_cast<int>(rnd.Uniform(kMaxKey))),
-                  RandomString(&rnd, 80)));
-  }
-  ASSERT_OK(dbfull()->SetOptions({
-      {"disable_auto_compactions", "false"},
-  }));
-  Flush();
-  dbfull()->TEST_WaitForCompact();
-  ASSERT_TRUE(db_->GetIntProperty("rocksdb.base-level", &int_prop));
-  ASSERT_EQ(2U, int_prop);
-
-  // Keep Writing data until base level changed 2->1. There will be L0->L2
-  // compaction going on at the same time.
-  rocksdb::SyncPoint::GetInstance()->EnableProcessing();
-  for (int attempt = 0; attempt <= 20; attempt++) {
-    // Write about 5K more data with two flushes. It should be flush to level 2
-    // but when it is applied, base level is already 1.
-    for (int i = 0; i < 50; i++) {
-      ASSERT_OK(Put(Key(static_cast<int>(rnd.Uniform(kMaxKey))),
-                    RandomString(&rnd, 80)));
-    }
-    Flush();
-
-    ASSERT_TRUE(db_->GetIntProperty("rocksdb.base-level", &int_prop));
-    if (int_prop == 2U) {
-      env_->SleepForMicroseconds(50000);
-    } else {
-      break;
-    }
-  }
-  rocksdb::SyncPoint::GetInstance()->DisableProcessing();
-  rocksdb::SyncPoint::GetInstance()->ClearAllCallBacks();
-
-  env_->SleepForMicroseconds(200000);
-
-  ASSERT_TRUE(db_->GetIntProperty("rocksdb.base-level", &int_prop));
-  ASSERT_EQ(1U, int_prop);
-}
-
-// Test specific cases in dynamic max bytes
-TEST_F(DBTestDynamicLevel, DynamicLevelMaxBytesCompactRange) {
-  Random rnd(301);
-  int kMaxKey = 1000000;
-
-  Options options = CurrentOptions();
-  options.create_if_missing = true;
-  options.db_write_buffer_size = 2048;
-  options.write_buffer_size = 2048;
-  options.max_write_buffer_number = 2;
-  options.level0_file_num_compaction_trigger = 2;
-  options.level0_slowdown_writes_trigger = 9999;
-  options.level0_stop_writes_trigger = 9999;
-  options.target_file_size_base = 2;
-  options.level_compaction_dynamic_level_bytes = true;
-  options.max_bytes_for_level_base = 10240;
-  options.max_bytes_for_level_multiplier = 4;
-  options.max_background_compactions = 1;
-  const int kNumLevels = 5;
-  options.num_levels = kNumLevels;
-  options.expanded_compaction_factor = 0;  // Force not expanding in compactions
-  BlockBasedTableOptions table_options;
-  table_options.block_size = 1024;
-  options.table_factory.reset(NewBlockBasedTableFactory(table_options));
-
-  DestroyAndReopen(options);
-
-  // Compact against empty DB
-  dbfull()->CompactRange(CompactRangeOptions(), nullptr, nullptr);
-
-  uint64_t int_prop;
-  std::string str_prop;
-
-  // Initial base level is the last level
-  ASSERT_TRUE(db_->GetIntProperty("rocksdb.base-level", &int_prop));
-  ASSERT_EQ(4U, int_prop);
-
-  // Put about 7K to L0
-  for (int i = 0; i < 140; i++) {
-    ASSERT_OK(Put(Key(static_cast<int>(rnd.Uniform(kMaxKey))),
-                  RandomString(&rnd, 80)));
-  }
-  Flush();
-  dbfull()->TEST_WaitForCompact();
-  if (NumTableFilesAtLevel(0) == 0) {
-    // Make sure level 0 is not empty
-    ASSERT_OK(Put(Key(static_cast<int>(rnd.Uniform(kMaxKey))),
-                  RandomString(&rnd, 80)));
-    Flush();
-  }
-
-  ASSERT_TRUE(db_->GetIntProperty("rocksdb.base-level", &int_prop));
-  ASSERT_EQ(3U, int_prop);
-  ASSERT_TRUE(db_->GetProperty("rocksdb.num-files-at-level1", &str_prop));
-  ASSERT_EQ("0", str_prop);
-  ASSERT_TRUE(db_->GetProperty("rocksdb.num-files-at-level2", &str_prop));
-  ASSERT_EQ("0", str_prop);
-
-  rocksdb::SyncPoint::GetInstance()->DisableProcessing();
-  rocksdb::SyncPoint::GetInstance()->ClearAllCallBacks();
-
-  std::set<int> output_levels;
-  rocksdb::SyncPoint::GetInstance()->SetCallBack(
-      "CompactionPicker::CompactRange:Return", [&](void* arg) {
-        Compaction* compaction = reinterpret_cast<Compaction*>(arg);
-        output_levels.insert(compaction->output_level());
-      });
-  rocksdb::SyncPoint::GetInstance()->EnableProcessing();
-
-  dbfull()->CompactRange(CompactRangeOptions(), nullptr, nullptr);
-  ASSERT_EQ(output_levels.size(), 2);
-  ASSERT_TRUE(output_levels.find(3) != output_levels.end());
-  ASSERT_TRUE(output_levels.find(4) != output_levels.end());
-  ASSERT_TRUE(db_->GetProperty("rocksdb.num-files-at-level0", &str_prop));
-  ASSERT_EQ("0", str_prop);
-  ASSERT_TRUE(db_->GetProperty("rocksdb.num-files-at-level3", &str_prop));
-  ASSERT_EQ("0", str_prop);
-  // Base level is still level 3.
-  ASSERT_TRUE(db_->GetIntProperty("rocksdb.base-level", &int_prop));
-  ASSERT_EQ(3U, int_prop);
-}
-
-TEST_F(DBTestDynamicLevel, DynamicLevelMaxBytesBaseInc) {
-  Options options = CurrentOptions();
-  options.create_if_missing = true;
-  options.db_write_buffer_size = 2048;
-  options.write_buffer_size = 2048;
-  options.max_write_buffer_number = 2;
-  options.level0_file_num_compaction_trigger = 2;
-  options.level0_slowdown_writes_trigger = 2;
-  options.level0_stop_writes_trigger = 2;
-  options.target_file_size_base = 2048;
-  options.level_compaction_dynamic_level_bytes = true;
-  options.max_bytes_for_level_base = 10240;
-  options.max_bytes_for_level_multiplier = 4;
-  options.soft_rate_limit = 1.1;
-  options.max_background_compactions = 2;
-  options.num_levels = 5;
-
-  DestroyAndReopen(options);
-
-  int non_trivial = 0;
-  rocksdb::SyncPoint::GetInstance()->SetCallBack(
-      "DBImpl::BackgroundCompaction:NonTrivial",
-      [&](void* arg) { non_trivial++; });
-  rocksdb::SyncPoint::GetInstance()->EnableProcessing();
-
-  Random rnd(301);
-  const int total_keys = 3000;
-  const int random_part_size = 100;
-  for (int i = 0; i < total_keys; i++) {
-    std::string value = RandomString(&rnd, random_part_size);
-    PutFixed32(&value, static_cast<uint32_t>(i));
-    ASSERT_OK(Put(Key(i), value));
-  }
-  Flush();
-  dbfull()->TEST_WaitForCompact();
-  rocksdb::SyncPoint::GetInstance()->DisableProcessing();
-
-  ASSERT_EQ(non_trivial, 0);
-
-  for (int i = 0; i < total_keys; i++) {
-    std::string value = Get(Key(i));
-    ASSERT_EQ(DecodeFixed32(value.c_str() + random_part_size),
-              static_cast<uint32_t>(i));
-  }
-
-  env_->SetBackgroundThreads(1, Env::LOW);
-  env_->SetBackgroundThreads(1, Env::HIGH);
-}
-
-TEST_F(DBTestDynamicLevel, MigrateToDynamicLevelMaxBytesBase) {
-  Random rnd(301);
-  const int kMaxKey = 2000;
-
-  Options options;
-  options.create_if_missing = true;
-  options.db_write_buffer_size = 2048;
-  options.write_buffer_size = 2048;
-  options.max_write_buffer_number = 8;
-  options.level0_file_num_compaction_trigger = 4;
-  options.level0_slowdown_writes_trigger = 4;
-  options.level0_stop_writes_trigger = 8;
-  options.target_file_size_base = 2048;
-  options.level_compaction_dynamic_level_bytes = false;
-  options.max_bytes_for_level_base = 10240;
-  options.max_bytes_for_level_multiplier = 4;
-  options.soft_rate_limit = 1.1;
-  options.num_levels = 8;
-
-  DestroyAndReopen(options);
-
-  auto verify_func = [&](int num_keys, bool if_sleep) {
-    for (int i = 0; i < num_keys; i++) {
-      ASSERT_NE("NOT_FOUND", Get(Key(kMaxKey + i)));
-      if (i < num_keys / 10) {
-        ASSERT_EQ("NOT_FOUND", Get(Key(i)));
-      } else {
-        ASSERT_NE("NOT_FOUND", Get(Key(i)));
-      }
-      if (if_sleep && i % 1000 == 0) {
-        // Without it, valgrind may choose not to give another
-        // thread a chance to run before finishing the function,
-        // causing the test to be extremely slow.
-        env_->SleepForMicroseconds(1);
-      }
-    }
-  };
-
-  int total_keys = 1000;
-  for (int i = 0; i < total_keys; i++) {
-    ASSERT_OK(Put(Key(i), RandomString(&rnd, 102)));
-    ASSERT_OK(Put(Key(kMaxKey + i), RandomString(&rnd, 102)));
-    ASSERT_OK(Delete(Key(i / 10)));
-  }
-  verify_func(total_keys, false);
-  dbfull()->TEST_WaitForCompact();
-
-  options.level_compaction_dynamic_level_bytes = true;
-  options.disable_auto_compactions = true;
-  Reopen(options);
-  verify_func(total_keys, false);
-
-  std::atomic_bool compaction_finished;
-  compaction_finished = false;
-  // Issue manual compaction in one thread and still verify DB state
-  // in main thread.
-  std::thread t([&]() {
-    CompactRangeOptions compact_options;
-    compact_options.change_level = true;
-    compact_options.target_level = options.num_levels - 1;
-    dbfull()->CompactRange(compact_options, nullptr, nullptr);
-    compaction_finished.store(true);
-  });
-  do {
-    verify_func(total_keys, true);
-  } while (!compaction_finished.load());
-  t.join();
-
-  ASSERT_OK(dbfull()->SetOptions({
-      {"disable_auto_compactions", "false"},
-  }));
-
-  int total_keys2 = 2000;
-  for (int i = total_keys; i < total_keys2; i++) {
-    ASSERT_OK(Put(Key(i), RandomString(&rnd, 102)));
-    ASSERT_OK(Put(Key(kMaxKey + i), RandomString(&rnd, 102)));
-    ASSERT_OK(Delete(Key(i / 10)));
-  }
-
-  verify_func(total_keys2, false);
-  dbfull()->TEST_WaitForCompact();
-  verify_func(total_keys2, false);
-
-  // Base level is not level 1
-  ASSERT_EQ(NumTableFilesAtLevel(1), 0);
-  ASSERT_EQ(NumTableFilesAtLevel(2), 0);
-}
-}  // namespace rocksdb
-
-#endif  // !defined(ROCKSDB_LITE)
-
-int main(int argc, char** argv) {
-#if !defined(ROCKSDB_LITE)
-  rocksdb::port::InstallStackTraceHandler();
-  ::testing::InitGoogleTest(&argc, argv);
-  return RUN_ALL_TESTS();
-#else
-  return 0;
-#endif
-}

db/db_filesnapshot.cc

@@ -1,4 +1,4 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+//  Copyright (c) 2013, Facebook, Inc.  All rights reserved.
 //  This source code is licensed under the BSD-style license found in the
 //  LICENSE file in the root directory of this source tree. An additional grant
 //  of patent rights can be found in the PATENTS file in the same directory.
@@ -19,25 +19,22 @@
 #include <stdint.h>
 #include "db/db_impl.h"
 #include "db/filename.h"
-#include "db/job_context.h"
 #include "db/version_set.h"
 #include "rocksdb/db.h"
 #include "rocksdb/env.h"
 #include "port/port.h"
 #include "util/mutexlock.h"
 #include "util/sync_point.h"
-#include "util/file_util.h"
 
 namespace rocksdb {
 
 Status DBImpl::DisableFileDeletions() {
-  InstrumentedMutexLock l(&mutex_);
+  MutexLock l(&mutex_);
   ++disable_delete_obsolete_files_;
   if (disable_delete_obsolete_files_ == 1) {
-    Log(InfoLogLevel::INFO_LEVEL, db_options_.info_log,
-        "File Deletions Disabled");
+    Log(db_options_.info_log, "File Deletions Disabled");
   } else {
-    Log(InfoLogLevel::WARN_LEVEL, db_options_.info_log,
+    Log(db_options_.info_log,
         "File Deletions Disabled, but already disabled. Counter: %d",
         disable_delete_obsolete_files_);
   }
@@ -45,12 +42,10 @@ Status DBImpl::DisableFileDeletions() {
 }
 
 Status DBImpl::EnableFileDeletions(bool force) {
-  // Job id == 0 means that this is not our background process, but rather
-  // user thread
-  JobContext job_context(0);
+  DeletionState deletion_state;
   bool should_purge_files = false;
   {
-    InstrumentedMutexLock l(&mutex_);
+    MutexLock l(&mutex_);
     if (force) {
       // if force, we need to enable file deletions right away
       disable_delete_obsolete_files_ = 0;
@@ -58,20 +53,18 @@ Status DBImpl::EnableFileDeletions(bool force) {
       --disable_delete_obsolete_files_;
     }
     if (disable_delete_obsolete_files_ == 0)  {
-      Log(InfoLogLevel::INFO_LEVEL, db_options_.info_log,
-          "File Deletions Enabled");
+      Log(db_options_.info_log, "File Deletions Enabled");
       should_purge_files = true;
-      FindObsoleteFiles(&job_context, true);
+      FindObsoleteFiles(deletion_state, true);
     } else {
-      Log(InfoLogLevel::WARN_LEVEL, db_options_.info_log,
+      Log(db_options_.info_log,
           "File Deletions Enable, but not really enabled. Counter: %d",
           disable_delete_obsolete_files_);
     }
   }
   if (should_purge_files)  {
-    PurgeObsoleteFiles(job_context);
+    PurgeObsoleteFiles(deletion_state);
   }
-  job_context.Clean();
   LogFlush(db_options_.info_log);
   return Status::OK();
 }
@@ -92,14 +85,9 @@ Status DBImpl::GetLiveFiles(std::vector<std::string>& ret,
     // flush all dirty data to disk.
     Status status;
     for (auto cfd : *versions_->GetColumnFamilySet()) {
-      if (cfd->IsDropped()) {
-        continue;
-      }
       cfd->Ref();
       mutex_.Unlock();
       status = FlushMemTable(cfd, FlushOptions());
-      TEST_SYNC_POINT("DBImpl::GetLiveFiles:1");
-      TEST_SYNC_POINT("DBImpl::GetLiveFiles:2");
       mutex_.Lock();
       cfd->Unref();
       if (!status.ok()) {
@@ -110,8 +98,8 @@ Status DBImpl::GetLiveFiles(std::vector<std::string>& ret,
 
     if (!status.ok()) {
       mutex_.Unlock();
-      Log(InfoLogLevel::ERROR_LEVEL, db_options_.info_log,
-          "Cannot Flush data %s\n", status.ToString().c_str());
+      Log(db_options_.info_log, "Cannot Flush data %s\n",
+          status.ToString().c_str());
       return status;
     }
   }
@@ -119,9 +107,6 @@ Status DBImpl::GetLiveFiles(std::vector<std::string>& ret,
   // Make a set of all of the live *.sst files
   std::vector<FileDescriptor> live;
   for (auto cfd : *versions_->GetColumnFamilySet()) {
-    if (cfd->IsDropped()) {
-      continue;
-    }
     cfd->current()->AddLiveFiles(&live);
   }
 
@@ -135,17 +120,65 @@ Status DBImpl::GetLiveFiles(std::vector<std::string>& ret,
   }
 
   ret.push_back(CurrentFileName(""));
-  ret.push_back(DescriptorFileName("", versions_->manifest_file_number()));
+  ret.push_back(DescriptorFileName("", versions_->ManifestFileNumber()));
 
   // find length of manifest file while holding the mutex lock
-  *manifest_file_size = versions_->manifest_file_size();
+  *manifest_file_size = versions_->ManifestFileSize();
 
   mutex_.Unlock();
   return Status::OK();
 }
 
 Status DBImpl::GetSortedWalFiles(VectorLogPtr& files) {
-  return wal_manager_.GetSortedWalFiles(files);
+  // First get sorted files in db dir, then get sorted files from archived
+  // dir, to avoid a race condition where a log file is moved to archived
+  // dir in between.
+  Status s;
+  // list wal files in main db dir.
+  VectorLogPtr logs;
+  s = GetSortedWalsOfType(db_options_.wal_dir, logs, kAliveLogFile);
+  if (!s.ok()) {
+    return s;
+  }
+
+  // Reproduce the race condition where a log file is moved
+  // to archived dir, between these two sync points, used in
+  // (DBTest,TransactionLogIteratorRace)
+  TEST_SYNC_POINT("DBImpl::GetSortedWalFiles:1");
+  TEST_SYNC_POINT("DBImpl::GetSortedWalFiles:2");
+
+  files.clear();
+  // list wal files in archive dir.
+  std::string archivedir = ArchivalDirectory(db_options_.wal_dir);
+  if (env_->FileExists(archivedir)) {
+    s = GetSortedWalsOfType(archivedir, files, kArchivedLogFile);
+    if (!s.ok()) {
+      return s;
+    }
+  }
+
+  uint64_t latest_archived_log_number = 0;
+  if (!files.empty()) {
+    latest_archived_log_number = files.back()->LogNumber();
+    Log(db_options_.info_log, "Latest Archived log: %" PRIu64,
+        latest_archived_log_number);
+  }
+
+  files.reserve(files.size() + logs.size());
+  for (auto& log : logs) {
+    if (log->LogNumber() > latest_archived_log_number) {
+      files.push_back(std::move(log));
+    } else {
+      // When the race condition happens, we could see the
+      // same log in both db dir and archived dir. Simply
+      // ignore the one in db dir. Note that, if we read
+      // archived dir first, we would have missed the log file.
+      Log(db_options_.info_log, "%s already moved to archive",
+          log->PathName().c_str());
+    }
+  }
+
+  return s;
 }
 
 }

db/db_impl_debug.cc

@@ -1,4 +1,4 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+//  Copyright (c) 2013, Facebook, Inc.  All rights reserved.
 //  This source code is licensed under the BSD-style license found in the
 //  LICENSE file in the root directory of this source tree. An additional grant
 //  of patent rights can be found in the PATENTS file in the same directory.
@@ -7,16 +7,34 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file. See the AUTHORS file for names of contributors.
 
-#ifndef NDEBUG
+#ifndef ROCKSDB_LITE
 
 #include "db/db_impl.h"
-#include "util/thread_status_updater.h"
 
 namespace rocksdb {
 
+void DBImpl::TEST_PurgeObsoleteteWAL() { PurgeObsoleteWALFiles(); }
+
 uint64_t DBImpl::TEST_GetLevel0TotalSize() {
-  InstrumentedMutexLock l(&mutex_);
-  return default_cf_handle_->cfd()->current()->storage_info()->NumLevelBytes(0);
+  MutexLock l(&mutex_);
+  return default_cf_handle_->cfd()->current()->NumLevelBytes(0);
+}
+
+Iterator* DBImpl::TEST_NewInternalIterator(Arena* arena,
+                                           ColumnFamilyHandle* column_family) {
+  ColumnFamilyData* cfd;
+  if (column_family == nullptr) {
+    cfd = default_cf_handle_->cfd();
+  } else {
+    auto cfh = reinterpret_cast<ColumnFamilyHandleImpl*>(column_family);
+    cfd = cfh->cfd();
+  }
+
+  mutex_.Lock();
+  SuperVersion* super_version = cfd->GetSuperVersion()->Ref();
+  mutex_.Unlock();
+  ReadOptions roptions;
+  return NewInternalIterator(roptions, cfd, super_version, arena);
 }
 
 int64_t DBImpl::TEST_MaxNextLevelOverlappingBytes(
@@ -28,8 +46,8 @@ int64_t DBImpl::TEST_MaxNextLevelOverlappingBytes(
     auto cfh = reinterpret_cast<ColumnFamilyHandleImpl*>(column_family);
     cfd = cfh->cfd();
   }
-  InstrumentedMutexLock l(&mutex_);
-  return cfd->current()->storage_info()->MaxNextLevelOverlappingBytes();
+  MutexLock l(&mutex_);
+  return cfd->current()->MaxNextLevelOverlappingBytes();
 }
 
 void DBImpl::TEST_GetFilesMetaData(
@@ -37,11 +55,10 @@ void DBImpl::TEST_GetFilesMetaData(
     std::vector<std::vector<FileMetaData>>* metadata) {
   auto cfh = reinterpret_cast<ColumnFamilyHandleImpl*>(column_family);
   auto cfd = cfh->cfd();
-  InstrumentedMutexLock l(&mutex_);
+  MutexLock l(&mutex_);
   metadata->resize(NumberLevels());
   for (int level = 0; level < NumberLevels(); level++) {
-    const std::vector<FileMetaData*>& files =
-        cfd->current()->storage_info()->LevelFiles(level);
+    const std::vector<FileMetaData*>& files = cfd->current()->files_[level];
 
     (*metadata)[level].clear();
     for (const auto& f : files) {
@@ -51,13 +68,12 @@ void DBImpl::TEST_GetFilesMetaData(
 }
 
 uint64_t DBImpl::TEST_Current_Manifest_FileNo() {
-  return versions_->manifest_file_number();
+  return versions_->ManifestFileNumber();
 }
 
 Status DBImpl::TEST_CompactRange(int level, const Slice* begin,
                                  const Slice* end,
-                                 ColumnFamilyHandle* column_family,
-                                 bool disallow_trivial_move) {
+                                 ColumnFamilyHandle* column_family) {
   ColumnFamilyData* cfd;
   if (column_family == nullptr) {
     cfd = default_cf_handle_->cfd();
@@ -66,12 +82,11 @@ Status DBImpl::TEST_CompactRange(int level, const Slice* begin,
     cfd = cfh->cfd();
   }
   int output_level =
-      (cfd->ioptions()->compaction_style == kCompactionStyleUniversal ||
-       cfd->ioptions()->compaction_style == kCompactionStyleFIFO)
+      (cfd->options()->compaction_style == kCompactionStyleUniversal ||
+       cfd->options()->compaction_style == kCompactionStyleFIFO)
           ? level
           : level + 1;
-  return RunManualCompaction(cfd, level, output_level, 0, begin, end, true,
-                             disallow_trivial_move);
+  return RunManualCompaction(cfd, level, output_level, 0, begin, end);
 }
 
 Status DBImpl::TEST_FlushMemTable(bool wait) {
@@ -98,13 +113,24 @@ Status DBImpl::TEST_WaitForCompact() {
   // wait for compact. It actually waits for scheduled compaction
   // OR flush to finish.
 
-  InstrumentedMutexLock l(&mutex_);
+  MutexLock l(&mutex_);
   while ((bg_compaction_scheduled_ || bg_flush_scheduled_) && bg_error_.ok()) {
     bg_cv_.Wait();
   }
   return bg_error_;
 }
 
+Status DBImpl::TEST_ReadFirstRecord(const WalFileType type,
+                                    const uint64_t number,
+                                    SequenceNumber* sequence) {
+  return ReadFirstRecord(type, number, sequence);
+}
+
+Status DBImpl::TEST_ReadFirstLine(const std::string& fname,
+                                  SequenceNumber* sequence) {
+  return ReadFirstLine(fname, sequence);
+}
+
 void DBImpl::TEST_LockMutex() {
   mutex_.Lock();
 }
@@ -114,45 +140,17 @@ void DBImpl::TEST_UnlockMutex() {
 }
 
 void* DBImpl::TEST_BeginWrite() {
-  auto w = new WriteThread::Writer();
-  write_thread_.EnterUnbatched(w, &mutex_);
+  auto w = new WriteThread::Writer(&mutex_);
+  Status s = write_thread_.EnterWriteThread(w, 0);
+  assert(s.ok() && !w->done);  // No timeout and nobody should do our job
   return reinterpret_cast<void*>(w);
 }
 
 void DBImpl::TEST_EndWrite(void* w) {
   auto writer = reinterpret_cast<WriteThread::Writer*>(w);
-  write_thread_.ExitUnbatched(writer);
+  write_thread_.ExitWriteThread(writer, writer, Status::OK());
   delete writer;
 }
 
-size_t DBImpl::TEST_LogsToFreeSize() {
-  InstrumentedMutexLock l(&mutex_);
-  return logs_to_free_.size();
-}
-
-uint64_t DBImpl::TEST_LogfileNumber() {
-  InstrumentedMutexLock l(&mutex_);
-  return logfile_number_;
-}
-
-Status DBImpl::TEST_GetAllImmutableCFOptions(
-    std::unordered_map<std::string, const ImmutableCFOptions*>* iopts_map) {
-  std::vector<std::string> cf_names;
-  std::vector<const ImmutableCFOptions*> iopts;
-  {
-    InstrumentedMutexLock l(&mutex_);
-    for (auto cfd : *versions_->GetColumnFamilySet()) {
-      cf_names.push_back(cfd->GetName());
-      iopts.push_back(cfd->ioptions());
-    }
-  }
-  iopts_map->clear();
-  for (size_t i = 0; i < cf_names.size(); ++i) {
-    iopts_map->insert({cf_names[i], iopts[i]});
-  }
-
-  return Status::OK();
-}
-
 }  // namespace rocksdb
-#endif  // NDEBUG
+#endif  // ROCKSDB_LITE

db/db_impl_experimental.cc

@@ -1,151 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under the BSD-style license found in the
-//  LICENSE file in the root directory of this source tree. An additional grant
-//  of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "db/db_impl.h"
-
-#ifndef __STDC_FORMAT_MACROS
-#define __STDC_FORMAT_MACROS
-#endif
-
-#include <inttypes.h>
-#include <vector>
-
-#include "db/column_family.h"
-#include "db/job_context.h"
-#include "db/version_set.h"
-#include "rocksdb/status.h"
-
-namespace rocksdb {
-
-#ifndef ROCKSDB_LITE
-Status DBImpl::SuggestCompactRange(ColumnFamilyHandle* column_family,
-                                   const Slice* begin, const Slice* end) {
-  auto cfh = reinterpret_cast<ColumnFamilyHandleImpl*>(column_family);
-  auto cfd = cfh->cfd();
-  InternalKey start_key, end_key;
-  if (begin != nullptr) {
-    start_key.SetMaxPossibleForUserKey(*begin);
-  }
-  if (end != nullptr) {
-    end_key.SetMinPossibleForUserKey(*end);
-  }
-  {
-    InstrumentedMutexLock l(&mutex_);
-    auto vstorage = cfd->current()->storage_info();
-    for (int level = 0; level < vstorage->num_non_empty_levels() - 1; ++level) {
-      std::vector<FileMetaData*> inputs;
-      vstorage->GetOverlappingInputs(
-          level, begin == nullptr ? nullptr : &start_key,
-          end == nullptr ? nullptr : &end_key, &inputs);
-      for (auto f : inputs) {
-        f->marked_for_compaction = true;
-      }
-    }
-    // Since we have some more files to compact, we should also recompute
-    // compaction score
-    vstorage->ComputeCompactionScore(*cfd->GetLatestMutableCFOptions(),
-                                     CompactionOptionsFIFO());
-    SchedulePendingCompaction(cfd);
-    MaybeScheduleFlushOrCompaction();
-  }
-  return Status::OK();
-}
-
-Status DBImpl::PromoteL0(ColumnFamilyHandle* column_family, int target_level) {
-  assert(column_family);
-
-  if (target_level < 1) {
-    Log(InfoLogLevel::INFO_LEVEL, db_options_.info_log,
-        "PromoteL0 FAILED. Invalid target level %d\n", target_level);
-    return Status::InvalidArgument("Invalid target level");
-  }
-
-  Status status;
-  VersionEdit edit;
-  JobContext job_context(next_job_id_.fetch_add(1), true);
-  {
-    InstrumentedMutexLock l(&mutex_);
-    auto* cfd = static_cast<ColumnFamilyHandleImpl*>(column_family)->cfd();
-    const auto* vstorage = cfd->current()->storage_info();
-
-    if (target_level >= vstorage->num_levels()) {
-      Log(InfoLogLevel::INFO_LEVEL, db_options_.info_log,
-          "PromoteL0 FAILED. Target level %d does not exist\n", target_level);
-      job_context.Clean();
-      return Status::InvalidArgument("Target level does not exist");
-    }
-
-    // Sort L0 files by range.
-    const InternalKeyComparator* icmp = &cfd->internal_comparator();
-    auto l0_files = vstorage->LevelFiles(0);
-    std::sort(l0_files.begin(), l0_files.end(),
-              [icmp](FileMetaData* f1, FileMetaData* f2) {
-                return icmp->Compare(f1->largest, f2->largest) < 0;
-              });
-
-    // Check that no L0 file is being compacted and that they have
-    // non-overlapping ranges.
-    for (size_t i = 0; i < l0_files.size(); ++i) {
-      auto f = l0_files[i];
-      if (f->being_compacted) {
-        Log(InfoLogLevel::INFO_LEVEL, db_options_.info_log,
-            "PromoteL0 FAILED. File %" PRIu64 " being compacted\n",
-            f->fd.GetNumber());
-        job_context.Clean();
-        return Status::InvalidArgument("PromoteL0 called during L0 compaction");
-      }
-
-      if (i == 0) continue;
-      auto prev_f = l0_files[i - 1];
-      if (icmp->Compare(prev_f->largest, f->smallest) >= 0) {
-        Log(InfoLogLevel::INFO_LEVEL, db_options_.info_log,
-            "PromoteL0 FAILED. Files %" PRIu64 " and %" PRIu64
-            " have overlapping ranges\n",
-            prev_f->fd.GetNumber(), f->fd.GetNumber());
-        job_context.Clean();
-        return Status::InvalidArgument("L0 has overlapping files");
-      }
-    }
-
-    // Check that all levels up to target_level are empty.
-    for (int level = 1; level <= target_level; ++level) {
-      if (vstorage->NumLevelFiles(level) > 0) {
-        Log(InfoLogLevel::INFO_LEVEL, db_options_.info_log,
-            "PromoteL0 FAILED. Level %d not empty\n", level);
-        job_context.Clean();
-        return Status::InvalidArgument(
-            "All levels up to target_level "
-            "must be empty");
-      }
-    }
-
-    edit.SetColumnFamily(cfd->GetID());
-    for (const auto& f : l0_files) {
-      edit.DeleteFile(0, f->fd.GetNumber());
-      edit.AddFile(target_level, f->fd.GetNumber(), f->fd.GetPathId(),
-                   f->fd.GetFileSize(), f->smallest, f->largest,
-                   f->smallest_seqno, f->largest_seqno,
-                   f->marked_for_compaction);
-    }
-
-    status = versions_->LogAndApply(cfd, *cfd->GetLatestMutableCFOptions(),
-                                    &edit, &mutex_, directories_.GetDbDir());
-    if (status.ok()) {
-      InstallSuperVersionAndScheduleWorkWrapper(
-          cfd, &job_context, *cfd->GetLatestMutableCFOptions());
-    }
-  }  // lock released here
-  LogFlush(db_options_.info_log);
-  job_context.Clean();
-
-  return status;
-}
-#endif  // ROCKSDB_LITE
-
-}  // namespace rocksdb

db/db_impl_readonly.cc

@@ -1,12 +1,10 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+//  Copyright (c) 2013, Facebook, Inc.  All rights reserved.
 //  This source code is licensed under the BSD-style license found in the
 //  LICENSE file in the root directory of this source tree. An additional grant
 //  of patent rights can be found in the PATENTS file in the same directory.
 
-
 #include "db/db_impl_readonly.h"
-
-#include "db/compacted_db_impl.h"
+#include "utilities/compacted_db/compacted_db_impl.h"
 #include "db/db_impl.h"
 #include "db/merge_context.h"
 #include "db/db_iter.h"
@@ -14,8 +12,6 @@
 
 namespace rocksdb {
 
-#ifndef ROCKSDB_LITE
-
 DBImplReadOnly::DBImplReadOnly(const DBOptions& db_options,
                                const std::string& dbname)
     : DBImpl(db_options, dbname) {
@@ -54,11 +50,10 @@ Iterator* DBImplReadOnly::NewIterator(const ReadOptions& read_options,
   auto db_iter = NewArenaWrappedDbIterator(
       env_, *cfd->ioptions(), cfd->user_comparator(),
       (read_options.snapshot != nullptr
-           ? reinterpret_cast<const SnapshotImpl*>(read_options.snapshot)
-                 ->number_
+           ? reinterpret_cast<const SnapshotImpl*>(
+                read_options.snapshot)->number_
            : latest_snapshot),
-      super_version->mutable_cf_options.max_sequential_skip_in_iterations,
-      super_version->version_number);
+      cfd->options()->max_sequential_skip_in_iterations);
   auto internal_iter = NewInternalIterator(
       read_options, cfd, super_version, db_iter->GetArena());
   db_iter->SetIterUnderDBIter(internal_iter);
@@ -77,18 +72,16 @@ Status DBImplReadOnly::NewIterators(
   SequenceNumber latest_snapshot = versions_->LastSequence();
 
   for (auto cfh : column_families) {
-    auto* cfd = reinterpret_cast<ColumnFamilyHandleImpl*>(cfh)->cfd();
-    auto* sv = cfd->GetSuperVersion()->Ref();
-    auto* db_iter = NewArenaWrappedDbIterator(
+    auto cfd = reinterpret_cast<ColumnFamilyHandleImpl*>(cfh)->cfd();
+    auto db_iter = NewArenaWrappedDbIterator(
         env_, *cfd->ioptions(), cfd->user_comparator(),
         (read_options.snapshot != nullptr
-             ? reinterpret_cast<const SnapshotImpl*>(read_options.snapshot)
-                   ->number_
-             : latest_snapshot),
-        sv->mutable_cf_options.max_sequential_skip_in_iterations,
-        sv->version_number);
-    auto* internal_iter = NewInternalIterator(
-        read_options, cfd, sv, db_iter->GetArena());
+            ? reinterpret_cast<const SnapshotImpl*>(
+                  read_options.snapshot)->number_
+            : latest_snapshot),
+        cfd->options()->max_sequential_skip_in_iterations);
+    auto internal_iter = NewInternalIterator(
+        read_options, cfd, cfd->GetSuperVersion()->Ref(), db_iter->GetArena());
     db_iter->SetIterUnderDBIter(internal_iter);
     iterators->push_back(db_iter);
   }
@@ -102,10 +95,12 @@ Status DB::OpenForReadOnly(const Options& options, const std::string& dbname,
 
   // Try to first open DB as fully compacted DB
   Status s;
+#ifndef ROCKSDB_LITE
   s = CompactedDBImpl::Open(options, dbname, dbptr);
   if (s.ok()) {
     return s;
   }
+#endif
 
   DBOptions db_options(options);
   ColumnFamilyOptions cf_options(options);
@@ -156,10 +151,6 @@ Status DB::OpenForReadOnly(
   impl->mutex_.Unlock();
   if (s.ok()) {
     *dbptr = impl;
-    for (auto* h : *handles) {
-      impl->NewThreadStatusCfInfo(
-          reinterpret_cast<ColumnFamilyHandleImpl*>(h)->cfd());
-    }
   } else {
     for (auto h : *handles) {
       delete h;
@@ -170,20 +161,5 @@ Status DB::OpenForReadOnly(
   return s;
 }
 
-#else  // !ROCKSDB_LITE
-
-Status DB::OpenForReadOnly(const Options& options, const std::string& dbname,
-                           DB** dbptr, bool error_if_log_file_exist) {
-  return Status::NotSupported("Not supported in ROCKSDB_LITE.");
-}
-
-Status DB::OpenForReadOnly(
-    const DBOptions& db_options, const std::string& dbname,
-    const std::vector<ColumnFamilyDescriptor>& column_families,
-    std::vector<ColumnFamilyHandle*>* handles, DB** dbptr,
-    bool error_if_log_file_exist) {
-  return Status::NotSupported("Not supported in ROCKSDB_LITE.");
-}
-#endif  // !ROCKSDB_LITE
 
 }   // namespace rocksdb

db/db_impl_readonly.h

@@ -1,12 +1,9 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+//  Copyright (c) 2013, Facebook, Inc.  All rights reserved.
 //  This source code is licensed under the BSD-style license found in the
 //  LICENSE file in the root directory of this source tree. An additional grant
 //  of patent rights can be found in the PATENTS file in the same directory.
 
 #pragma once
-
-#ifndef ROCKSDB_LITE
-
 #include "db/db_impl.h"
 #include <vector>
 #include <string>
@@ -53,29 +50,15 @@ class DBImplReadOnly : public DBImpl {
                         const Slice& key) override {
     return Status::NotSupported("Not supported operation in read only mode.");
   }
-  using DBImpl::SingleDelete;
-  virtual Status SingleDelete(const WriteOptions& options,
-                              ColumnFamilyHandle* column_family,
-                              const Slice& key) override {
-    return Status::NotSupported("Not supported operation in read only mode.");
-  }
   virtual Status Write(const WriteOptions& options,
                        WriteBatch* updates) override {
     return Status::NotSupported("Not supported operation in read only mode.");
   }
   using DBImpl::CompactRange;
-  virtual Status CompactRange(const CompactRangeOptions& options,
-                              ColumnFamilyHandle* column_family,
-                              const Slice* begin, const Slice* end) override {
-    return Status::NotSupported("Not supported operation in read only mode.");
-  }
-
-  using DBImpl::CompactFiles;
-  virtual Status CompactFiles(
-      const CompactionOptions& compact_options,
-      ColumnFamilyHandle* column_family,
-      const std::vector<std::string>& input_file_names,
-      const int output_level, const int output_path_id = -1) override {
+  virtual Status CompactRange(ColumnFamilyHandle* column_family,
+                              const Slice* begin, const Slice* end,
+                              bool reduce_level = false, int target_level = -1,
+                              uint32_t target_path_id = 0) override {
     return Status::NotSupported("Not supported operation in read only mode.");
   }
 
@@ -83,7 +66,6 @@ class DBImplReadOnly : public DBImpl {
   virtual Status DisableFileDeletions() override {
     return Status::NotSupported("Not supported operation in read only mode.");
   }
-
   virtual Status EnableFileDeletions(bool force) override {
     return Status::NotSupported("Not supported operation in read only mode.");
   }
@@ -100,11 +82,6 @@ class DBImplReadOnly : public DBImpl {
     return Status::NotSupported("Not supported operation in read only mode.");
   }
 
-  using DBImpl::SyncWAL;
-  virtual Status SyncWAL() override {
-    return Status::NotSupported("Not supported operation in read only mode.");
-  }
-
  private:
   friend class DB;
 
@@ -113,5 +90,3 @@ class DBImplReadOnly : public DBImpl {
   void operator=(const DBImplReadOnly&);
 };
 }
-
-#endif  // !ROCKSDB_LITE

db/db_inplace_update_test.cc

@@ -1,171 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under the BSD-style license found in the
-//  LICENSE file in the root directory of this source tree. An additional grant
-//  of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-#include "db/db_test_util.h"
-#include "port/stack_trace.h"
-
-namespace rocksdb {
-
-class DBTestInPlaceUpdate : public DBTestBase {
- public:
-  DBTestInPlaceUpdate() : DBTestBase("/db_inplace_update_test") {}
-};
-
-TEST_F(DBTestInPlaceUpdate, InPlaceUpdate) {
-  do {
-    Options options;
-    options.create_if_missing = true;
-    options.inplace_update_support = true;
-    options.env = env_;
-    options.write_buffer_size = 100000;
-    options = CurrentOptions(options);
-    CreateAndReopenWithCF({"pikachu"}, options);
-
-    // Update key with values of smaller size
-    int numValues = 10;
-    for (int i = numValues; i > 0; i--) {
-      std::string value = DummyString(i, 'a');
-      ASSERT_OK(Put(1, "key", value));
-      ASSERT_EQ(value, Get(1, "key"));
-    }
-
-    // Only 1 instance for that key.
-    validateNumberOfEntries(1, 1);
-  } while (ChangeCompactOptions());
-}
-
-TEST_F(DBTestInPlaceUpdate, InPlaceUpdateLargeNewValue) {
-  do {
-    Options options;
-    options.create_if_missing = true;
-    options.inplace_update_support = true;
-    options.env = env_;
-    options.write_buffer_size = 100000;
-    options = CurrentOptions(options);
-    CreateAndReopenWithCF({"pikachu"}, options);
-
-    // Update key with values of larger size
-    int numValues = 10;
-    for (int i = 0; i < numValues; i++) {
-      std::string value = DummyString(i, 'a');
-      ASSERT_OK(Put(1, "key", value));
-      ASSERT_EQ(value, Get(1, "key"));
-    }
-
-    // All 10 updates exist in the internal iterator
-    validateNumberOfEntries(numValues, 1);
-  } while (ChangeCompactOptions());
-}
-
-TEST_F(DBTestInPlaceUpdate, InPlaceUpdateCallbackSmallerSize) {
-  do {
-    Options options;
-    options.create_if_missing = true;
-    options.inplace_update_support = true;
-
-    options.env = env_;
-    options.write_buffer_size = 100000;
-    options.inplace_callback =
-      rocksdb::DBTestInPlaceUpdate::updateInPlaceSmallerSize;
-    options = CurrentOptions(options);
-    CreateAndReopenWithCF({"pikachu"}, options);
-
-    // Update key with values of smaller size
-    int numValues = 10;
-    ASSERT_OK(Put(1, "key", DummyString(numValues, 'a')));
-    ASSERT_EQ(DummyString(numValues, 'c'), Get(1, "key"));
-
-    for (int i = numValues; i > 0; i--) {
-      ASSERT_OK(Put(1, "key", DummyString(i, 'a')));
-      ASSERT_EQ(DummyString(i - 1, 'b'), Get(1, "key"));
-    }
-
-    // Only 1 instance for that key.
-    validateNumberOfEntries(1, 1);
-  } while (ChangeCompactOptions());
-}
-
-TEST_F(DBTestInPlaceUpdate, InPlaceUpdateCallbackSmallerVarintSize) {
-  do {
-    Options options;
-    options.create_if_missing = true;
-    options.inplace_update_support = true;
-
-    options.env = env_;
-    options.write_buffer_size = 100000;
-    options.inplace_callback =
-      rocksdb::DBTestInPlaceUpdate::updateInPlaceSmallerVarintSize;
-    options = CurrentOptions(options);
-    CreateAndReopenWithCF({"pikachu"}, options);
-
-    // Update key with values of smaller varint size
-    int numValues = 265;
-    ASSERT_OK(Put(1, "key", DummyString(numValues, 'a')));
-    ASSERT_EQ(DummyString(numValues, 'c'), Get(1, "key"));
-
-    for (int i = numValues; i > 0; i--) {
-      ASSERT_OK(Put(1, "key", DummyString(i, 'a')));
-      ASSERT_EQ(DummyString(1, 'b'), Get(1, "key"));
-    }
-
-    // Only 1 instance for that key.
-    validateNumberOfEntries(1, 1);
-  } while (ChangeCompactOptions());
-}
-
-TEST_F(DBTestInPlaceUpdate, InPlaceUpdateCallbackLargeNewValue) {
-  do {
-    Options options;
-    options.create_if_missing = true;
-    options.inplace_update_support = true;
-
-    options.env = env_;
-    options.write_buffer_size = 100000;
-    options.inplace_callback =
-      rocksdb::DBTestInPlaceUpdate::updateInPlaceLargerSize;
-    options = CurrentOptions(options);
-    CreateAndReopenWithCF({"pikachu"}, options);
-
-    // Update key with values of larger size
-    int numValues = 10;
-    for (int i = 0; i < numValues; i++) {
-      ASSERT_OK(Put(1, "key", DummyString(i, 'a')));
-      ASSERT_EQ(DummyString(i, 'c'), Get(1, "key"));
-    }
-
-    // No inplace updates. All updates are puts with new seq number
-    // All 10 updates exist in the internal iterator
-    validateNumberOfEntries(numValues, 1);
-  } while (ChangeCompactOptions());
-}
-
-TEST_F(DBTestInPlaceUpdate, InPlaceUpdateCallbackNoAction) {
-  do {
-    Options options;
-    options.create_if_missing = true;
-    options.inplace_update_support = true;
-
-    options.env = env_;
-    options.write_buffer_size = 100000;
-    options.inplace_callback =
-      rocksdb::DBTestInPlaceUpdate::updateInPlaceNoAction;
-    options = CurrentOptions(options);
-    CreateAndReopenWithCF({"pikachu"}, options);
-
-    // Callback function requests no actions from db
-    ASSERT_OK(Put(1, "key", DummyString(1, 'a')));
-    ASSERT_EQ(Get(1, "key"), "NOT_FOUND");
-  } while (ChangeCompactOptions());
-}
-}  // namespace rocksdb
-
-int main(int argc, char** argv) {
-  rocksdb::port::InstallStackTraceHandler();
-  ::testing::InitGoogleTest(&argc, argv);
-  return RUN_ALL_TESTS();
-}

db/db_iter.cc

@@ -1,4 +1,4 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+//  Copyright (c) 2013, Facebook, Inc.  All rights reserved.
 //  This source code is licensed under the BSD-style license found in the
 //  LICENSE file in the root directory of this source tree. An additional grant
 //  of patent rights can be found in the PATENTS file in the same directory.
@@ -13,19 +13,17 @@
 #include <string>
 #include <limits>
 
-#include "db/dbformat.h"
 #include "db/filename.h"
-#include "port/port.h"
+#include "db/dbformat.h"
 #include "rocksdb/env.h"
+#include "rocksdb/options.h"
 #include "rocksdb/iterator.h"
 #include "rocksdb/merge_operator.h"
-#include "rocksdb/options.h"
-#include "table/internal_iterator.h"
+#include "port/port.h"
 #include "util/arena.h"
 #include "util/logging.h"
 #include "util/mutexlock.h"
 #include "util/perf_context_imp.h"
-#include "util/string_util.h"
 
 namespace rocksdb {
 
@@ -60,49 +58,10 @@ class DBIter: public Iterator {
     kReverse
   };
 
-  // LocalStatistics contain Statistics counters that will be aggregated per
-  // each iterator instance and then will be sent to the global statistics when
-  // the iterator is destroyed.
-  //
-  // The purpose of this approach is to avoid perf regression happening
-  // when multiple threads bump the atomic counters from a DBIter::Next().
-  struct LocalStatistics {
-    explicit LocalStatistics() { ResetCounters(); }
-
-    void ResetCounters() {
-      next_count_ = 0;
-      next_found_count_ = 0;
-      prev_count_ = 0;
-      prev_found_count_ = 0;
-      bytes_read_ = 0;
-    }
-
-    void BumpGlobalStatistics(Statistics* global_statistics) {
-      RecordTick(global_statistics, NUMBER_DB_NEXT, next_count_);
-      RecordTick(global_statistics, NUMBER_DB_NEXT_FOUND, next_found_count_);
-      RecordTick(global_statistics, NUMBER_DB_PREV, prev_count_);
-      RecordTick(global_statistics, NUMBER_DB_PREV_FOUND, prev_found_count_);
-      RecordTick(global_statistics, ITER_BYTES_READ, bytes_read_);
-      ResetCounters();
-    }
-
-    // Map to Tickers::NUMBER_DB_NEXT
-    uint64_t next_count_;
-    // Map to Tickers::NUMBER_DB_NEXT_FOUND
-    uint64_t next_found_count_;
-    // Map to Tickers::NUMBER_DB_PREV
-    uint64_t prev_count_;
-    // Map to Tickers::NUMBER_DB_PREV_FOUND
-    uint64_t prev_found_count_;
-    // Map to Tickers::ITER_BYTES_READ
-    uint64_t bytes_read_;
-  };
-
-  DBIter(Env* env, const ImmutableCFOptions& ioptions, const Comparator* cmp,
-         InternalIterator* iter, SequenceNumber s, bool arena_mode,
-         uint64_t max_sequential_skip_in_iterations, uint64_t version_number,
-         const Slice* iterate_upper_bound = nullptr,
-         bool prefix_same_as_start = false)
+  DBIter(Env* env, const ImmutableCFOptions& ioptions,
+         const Comparator* cmp, Iterator* iter, SequenceNumber s,
+         bool arena_mode, uint64_t max_sequential_skip_in_iterations,
+         const Slice* iterate_upper_bound = nullptr)
       : arena_mode_(arena_mode),
         env_(env),
         logger_(ioptions.info_log),
@@ -114,100 +73,48 @@ class DBIter: public Iterator {
         valid_(false),
         current_entry_is_merged_(false),
         statistics_(ioptions.statistics),
-        version_number_(version_number),
-        iterate_upper_bound_(iterate_upper_bound),
-        prefix_same_as_start_(prefix_same_as_start),
-        iter_pinned_(false) {
+        iterate_upper_bound_(iterate_upper_bound) {
     RecordTick(statistics_, NO_ITERATORS);
     prefix_extractor_ = ioptions.prefix_extractor;
     max_skip_ = max_sequential_skip_in_iterations;
   }
   virtual ~DBIter() {
     RecordTick(statistics_, NO_ITERATORS, -1);
-    local_stats_.BumpGlobalStatistics(statistics_);
     if (!arena_mode_) {
       delete iter_;
     } else {
-      iter_->~InternalIterator();
+      iter_->~Iterator();
     }
   }
-  virtual void SetIter(InternalIterator* iter) {
+  virtual void SetIter(Iterator* iter) {
     assert(iter_ == nullptr);
     iter_ = iter;
-    if (iter_ && iter_pinned_) {
-      iter_->PinData();
-    }
   }
-  virtual bool Valid() const override { return valid_; }
-  virtual Slice key() const override {
+  virtual bool Valid() const { return valid_; }
+  virtual Slice key() const {
     assert(valid_);
     return saved_key_.GetKey();
   }
-  virtual Slice value() const override {
+  virtual Slice value() const {
     assert(valid_);
     return (direction_ == kForward && !current_entry_is_merged_) ?
       iter_->value() : saved_value_;
   }
-  virtual Status status() const override {
+  virtual Status status() const {
     if (status_.ok()) {
       return iter_->status();
     } else {
       return status_;
     }
   }
-  virtual Status PinData() {
-    Status s;
-    if (iter_) {
-      s = iter_->PinData();
-    }
-    if (s.ok()) {
-      // Even if iter_ is nullptr, we set iter_pinned_ to true so that when
-      // iter_ is updated using SetIter, we Pin it.
-      iter_pinned_ = true;
-    }
-    return s;
-  }
-  virtual Status ReleasePinnedData() {
-    Status s;
-    if (iter_) {
-      s = iter_->ReleasePinnedData();
-    }
-    if (s.ok()) {
-      iter_pinned_ = false;
-    }
-    return s;
-  }
 
-  virtual Status GetProperty(std::string prop_name,
-                             std::string* prop) override {
-    if (prop == nullptr) {
-      return Status::InvalidArgument("prop is nullptr");
-    }
-    if (prop_name == "rocksdb.iterator.super-version-number") {
-      // First try to pass the value returned from inner iterator.
-      if (!iter_->GetProperty(prop_name, prop).ok()) {
-        *prop = ToString(version_number_);
-      }
-      return Status::OK();
-    } else if (prop_name == "rocksdb.iterator.is-key-pinned") {
-      if (valid_) {
-        *prop = (iter_pinned_ && saved_key_.IsKeyPinned()) ? "1" : "0";
-      } else {
-        *prop = "Iterator is not valid.";
-      }
-      return Status::OK();
-    }
-    return Status::InvalidArgument("Undentified property.");
-  }
-
-  virtual void Next() override;
-  virtual void Prev() override;
-  virtual void Seek(const Slice& target) override;
-  virtual void SeekToFirst() override;
-  virtual void SeekToLast() override;
+  virtual void Next();
+  virtual void Prev();
+  virtual void Seek(const Slice& target);
+  virtual void SeekToFirst();
+  virtual void SeekToLast();
 
  private:
-  void ReverseToBackward();
   void PrevInternal();
   void FindParseableKey(ParsedInternalKey* ikey, Direction direction);
   bool FindValueForCurrentKey();
@@ -234,7 +141,7 @@ class DBIter: public Iterator {
   Logger* logger_;
   const Comparator* const user_comparator_;
   const MergeOperator* const user_merge_operator_;
-  InternalIterator* iter_;
+  Iterator* iter_;
   SequenceNumber const sequence_;
 
   Status status_;
@@ -245,14 +152,7 @@ class DBIter: public Iterator {
   bool current_entry_is_merged_;
   Statistics* statistics_;
   uint64_t max_skip_;
-  uint64_t version_number_;
   const Slice* iterate_upper_bound_;
-  IterKey prefix_start_;
-  bool prefix_same_as_start_;
-  bool iter_pinned_;
-  // List of operands for merge operator.
-  std::deque<std::string> merge_operands_;
-  LocalStatistics local_stats_;
 
   // No copying allowed
   DBIter(const DBIter&);
@@ -262,8 +162,7 @@ class DBIter: public Iterator {
 inline bool DBIter::ParseKey(ParsedInternalKey* ikey) {
   if (!ParseInternalKey(iter_->key(), ikey)) {
     status_ = Status::Corruption("corrupted internal key in DBIter");
-    Log(InfoLogLevel::ERROR_LEVEL,
-        logger_, "corrupted internal key in DBIter: %s",
+    Log(logger_, "corrupted internal key in DBIter: %s",
         iter_->key().ToString(true).c_str());
     return false;
   } else {
@@ -280,35 +179,14 @@ void DBIter::Next() {
     if (!iter_->Valid()) {
       iter_->SeekToFirst();
     }
-  } else if (iter_->Valid() && !current_entry_is_merged_) {
-    // If the current value is not a merge, the iter position is the
-    // current key, which is already returned. We can safely issue a
-    // Next() without checking the current key.
-    // If the current key is a merge, very likely iter already points
-    // to the next internal position.
-    iter_->Next();
-    PERF_COUNTER_ADD(internal_key_skipped_count, 1);
   }
 
-  if (statistics_ != nullptr) {
-    local_stats_.next_count_++;
-  }
-  // Now we point to the next internal position, for both of merge and
-  // not merge cases.
+  // If the current value is merged, we might already hit end of iter_
   if (!iter_->Valid()) {
     valid_ = false;
     return;
   }
   FindNextUserEntry(true /* skipping the current user key */);
-  if (valid_ && prefix_extractor_ && prefix_same_as_start_ &&
-      prefix_extractor_->Transform(saved_key_.GetKey())
-              .compare(prefix_start_.GetKey()) != 0) {
-    valid_ = false;
-  }
-  if (statistics_ != nullptr && valid_) {
-    local_stats_.next_found_count_++;
-    local_stats_.bytes_read_ += (key().size() + value().size());
-  }
 }
 
 // PRE: saved_key_ has the current user key if skipping
@@ -336,7 +214,7 @@ void DBIter::FindNextUserEntryInternal(bool skipping) {
 
     if (ParseKey(&ikey)) {
       if (iterate_upper_bound_ != nullptr &&
-          user_comparator_->Compare(ikey.user_key, *iterate_upper_bound_) >= 0) {
+          ikey.user_key.compare(*iterate_upper_bound_) >= 0) {
         break;
       }
 
@@ -346,26 +224,23 @@ void DBIter::FindNextUserEntryInternal(bool skipping) {
           num_skipped++;  // skip this entry
           PERF_COUNTER_ADD(internal_key_skipped_count, 1);
         } else {
+          skipping = false;
           switch (ikey.type) {
             case kTypeDeletion:
-            case kTypeSingleDeletion:
               // Arrange to skip all upcoming entries for this key since
               // they are hidden by this deletion.
-              saved_key_.SetKey(ikey.user_key,
-                                !iter_->IsKeyPinned() /* copy */);
+              saved_key_.SetKey(ikey.user_key);
               skipping = true;
               num_skipped = 0;
               PERF_COUNTER_ADD(internal_delete_skipped_count, 1);
               break;
             case kTypeValue:
               valid_ = true;
-              saved_key_.SetKey(ikey.user_key,
-                                !iter_->IsKeyPinned() /* copy */);
+              saved_key_.SetKey(ikey.user_key);
               return;
             case kTypeMerge:
               // By now, we are sure the current ikey is going to yield a value
-              saved_key_.SetKey(ikey.user_key,
-                                !iter_->IsKeyPinned() /* copy */);
+              saved_key_.SetKey(ikey.user_key);
               current_entry_is_merged_ = true;
               valid_ = true;
               MergeValuesNewToOld();  // Go to a different state machine
@@ -379,14 +254,13 @@ void DBIter::FindNextUserEntryInternal(bool skipping) {
     }
     // If we have sequentially iterated via numerous keys and still not
     // found the next user-key, then it is better to seek so that we can
-    // avoid too many key comparisons. We seek to the last occurrence of
-    // our current key by looking for sequence number 0 and type deletion
-    // (the smallest type).
+    // avoid too many key comparisons. We seek to the last occurence of
+    // our current key by looking for sequence number 0.
     if (skipping && num_skipped > max_skip_) {
       num_skipped = 0;
       std::string last_key;
       AppendInternalKey(&last_key, ParsedInternalKey(saved_key_.GetKey(), 0,
-                                                     kTypeDeletion));
+                                                     kValueTypeForSeek));
       iter_->Seek(last_key);
       RecordTick(statistics_, NUMBER_OF_RESEEKS_IN_ITERATION);
     } else {
@@ -404,11 +278,9 @@ void DBIter::FindNextUserEntryInternal(bool skipping) {
 //       iter_ points to the next entry (or invalid)
 void DBIter::MergeValuesNewToOld() {
   if (!user_merge_operator_) {
-    Log(InfoLogLevel::ERROR_LEVEL,
-        logger_, "Options::merge_operator is null.");
-    status_ = Status::InvalidArgument("user_merge_operator_ must be set.");
-    valid_ = false;
-    return;
+    Log(logger_, "Options::merge_operator is null.");
+    throw std::logic_error("DBIter::MergeValuesNewToOld() with"
+                           " Options::merge_operator null");
   }
 
   // Start the merge process by pushing the first operand
@@ -422,98 +294,53 @@ void DBIter::MergeValuesNewToOld() {
       continue;
     }
 
-    if (!user_comparator_->Equal(ikey.user_key, saved_key_.GetKey())) {
+    if (user_comparator_->Compare(ikey.user_key, saved_key_.GetKey()) != 0) {
       // hit the next user key, stop right here
       break;
-    } else if (kTypeDeletion == ikey.type || kTypeSingleDeletion == ikey.type) {
+    }
+
+    if (kTypeDeletion == ikey.type) {
       // hit a delete with the same user key, stop right here
       // iter_ is positioned after delete
       iter_->Next();
       break;
-    } else if (kTypeValue == ikey.type) {
+    }
+
+    if (kTypeValue == ikey.type) {
       // hit a put, merge the put value with operands and store the
       // final result in saved_value_. We are done!
       // ignore corruption if there is any.
-      const Slice val = iter_->value();
-      {
-        StopWatchNano timer(env_, statistics_ != nullptr);
-        PERF_TIMER_GUARD(merge_operator_time_nanos);
-        user_merge_operator_->FullMerge(ikey.user_key, &val, operands,
-                                        &saved_value_, logger_);
-        RecordTick(statistics_, MERGE_OPERATION_TOTAL_TIME,
-                   timer.ElapsedNanos());
-      }
+      const Slice value = iter_->value();
+      user_merge_operator_->FullMerge(ikey.user_key, &value, operands,
+                                      &saved_value_, logger_);
       // iter_ is positioned after put
       iter_->Next();
       return;
-    } else if (kTypeMerge == ikey.type) {
+    }
+
+    if (kTypeMerge == ikey.type) {
       // hit a merge, add the value as an operand and run associative merge.
       // when complete, add result to operands and continue.
-      const Slice& val = iter_->value();
-      operands.push_front(val.ToString());
-    } else {
-      assert(false);
+      const Slice& value = iter_->value();
+      operands.push_front(value.ToString());
     }
   }
 
-  {
-    StopWatchNano timer(env_, statistics_ != nullptr);
-    PERF_TIMER_GUARD(merge_operator_time_nanos);
-    // we either exhausted all internal keys under this user key, or hit
-    // a deletion marker.
-    // feed null as the existing value to the merge operator, such that
-    // client can differentiate this scenario and do things accordingly.
-    user_merge_operator_->FullMerge(saved_key_.GetKey(), nullptr, operands,
-                                    &saved_value_, logger_);
-    RecordTick(statistics_, MERGE_OPERATION_TOTAL_TIME, timer.ElapsedNanos());
-  }
+  // we either exhausted all internal keys under this user key, or hit
+  // a deletion marker.
+  // feed null as the existing value to the merge operator, such that
+  // client can differentiate this scenario and do things accordingly.
+  user_merge_operator_->FullMerge(saved_key_.GetKey(), nullptr, operands,
+                                  &saved_value_, logger_);
 }
 
 void DBIter::Prev() {
   assert(valid_);
   if (direction_ == kForward) {
-    ReverseToBackward();
+    FindPrevUserKey();
+    direction_ = kReverse;
   }
   PrevInternal();
-  if (statistics_ != nullptr) {
-    local_stats_.prev_count_++;
-    if (valid_) {
-      local_stats_.prev_found_count_++;
-      local_stats_.bytes_read_ += (key().size() + value().size());
-    }
-  }
-  if (valid_ && prefix_extractor_ && prefix_same_as_start_ &&
-      prefix_extractor_->Transform(saved_key_.GetKey())
-              .compare(prefix_start_.GetKey()) != 0) {
-    valid_ = false;
-  }
-}
-
-void DBIter::ReverseToBackward() {
-  if (current_entry_is_merged_) {
-    // Not placed in the same key. Need to call Prev() until finding the
-    // previous key.
-    if (!iter_->Valid()) {
-      iter_->SeekToLast();
-    }
-    ParsedInternalKey ikey;
-    FindParseableKey(&ikey, kReverse);
-    while (iter_->Valid() &&
-           user_comparator_->Compare(ikey.user_key, saved_key_.GetKey()) > 0) {
-      iter_->Prev();
-      FindParseableKey(&ikey, kReverse);
-    }
-  }
-#ifndef NDEBUG
-  if (iter_->Valid()) {
-    ParsedInternalKey ikey;
-    assert(ParseKey(&ikey));
-    assert(user_comparator_->Compare(ikey.user_key, saved_key_.GetKey()) <= 0);
-  }
-#endif
-
-  FindPrevUserKey();
-  direction_ = kReverse;
 }
 
 void DBIter::PrevInternal() {
@@ -525,15 +352,14 @@ void DBIter::PrevInternal() {
   ParsedInternalKey ikey;
 
   while (iter_->Valid()) {
-    saved_key_.SetKey(ExtractUserKey(iter_->key()),
-                      !iter_->IsKeyPinned() /* copy */);
+    saved_key_.SetKey(ExtractUserKey(iter_->key()));
     if (FindValueForCurrentKey()) {
       valid_ = true;
       if (!iter_->Valid()) {
         return;
       }
       FindParseableKey(&ikey, kReverse);
-      if (user_comparator_->Equal(ikey.user_key, saved_key_.GetKey())) {
+      if (user_comparator_->Compare(ikey.user_key, saved_key_.GetKey()) == 0) {
         FindPrevUserKey();
       }
       return;
@@ -542,7 +368,8 @@ void DBIter::PrevInternal() {
       break;
     }
     FindParseableKey(&ikey, kReverse);
-    if (user_comparator_->Equal(ikey.user_key, saved_key_.GetKey())) {
+    if (user_comparator_->Compare(ikey.user_key, saved_key_.GetKey()) == 0) {
+
       FindPrevUserKey();
     }
   }
@@ -552,13 +379,12 @@ void DBIter::PrevInternal() {
 }
 
 // This function checks, if the entry with biggest sequence_number <= sequence_
-// is non kTypeDeletion or kTypeSingleDeletion. If it's not, we save value in
-// saved_value_
+// is non kTypeDeletion. If it's not, we save value in saved_value_
 bool DBIter::FindValueForCurrentKey() {
   assert(iter_->Valid());
-  merge_operands_.clear();
-  // last entry before merge (could be kTypeDeletion, kTypeSingleDeletion or
-  // kTypeValue)
+  // Contains operands for merge operator.
+  std::deque<std::string> operands;
+  // last entry before merge (could be kTypeDeletion or kTypeValue)
   ValueType last_not_merge_type = kTypeDeletion;
   ValueType last_key_entry_type = kTypeDeletion;
 
@@ -567,7 +393,7 @@ bool DBIter::FindValueForCurrentKey() {
 
   size_t num_skipped = 0;
   while (iter_->Valid() && ikey.sequence <= sequence_ &&
-         user_comparator_->Equal(ikey.user_key, saved_key_.GetKey())) {
+         (user_comparator_->Compare(ikey.user_key, saved_key_.GetKey()) == 0)) {
     // We iterate too much: let's use Seek() to avoid too much key comparisons
     if (num_skipped >= max_skip_) {
       return FindValueForCurrentKeyUsingSeek();
@@ -576,26 +402,25 @@ bool DBIter::FindValueForCurrentKey() {
     last_key_entry_type = ikey.type;
     switch (last_key_entry_type) {
       case kTypeValue:
-        merge_operands_.clear();
+        operands.clear();
         saved_value_ = iter_->value().ToString();
         last_not_merge_type = kTypeValue;
         break;
       case kTypeDeletion:
-      case kTypeSingleDeletion:
-        merge_operands_.clear();
-        last_not_merge_type = last_key_entry_type;
+        operands.clear();
+        last_not_merge_type = kTypeDeletion;
         PERF_COUNTER_ADD(internal_delete_skipped_count, 1);
         break;
       case kTypeMerge:
         assert(user_merge_operator_ != nullptr);
-        merge_operands_.push_back(iter_->value().ToString());
+        operands.push_back(iter_->value().ToString());
         break;
       default:
         assert(false);
     }
 
     PERF_COUNTER_ADD(internal_key_skipped_count, 1);
-    assert(user_comparator_->Equal(ikey.user_key, saved_key_.GetKey()));
+    assert(user_comparator_->Compare(ikey.user_key, saved_key_.GetKey()) == 0);
     iter_->Prev();
     ++num_skipped;
     FindParseableKey(&ikey, kReverse);
@@ -603,31 +428,18 @@ bool DBIter::FindValueForCurrentKey() {
 
   switch (last_key_entry_type) {
     case kTypeDeletion:
-    case kTypeSingleDeletion:
       valid_ = false;
       return false;
     case kTypeMerge:
       if (last_not_merge_type == kTypeDeletion) {
-        StopWatchNano timer(env_, statistics_ != nullptr);
-        PERF_TIMER_GUARD(merge_operator_time_nanos);
-        user_merge_operator_->FullMerge(saved_key_.GetKey(), nullptr,
-                                        merge_operands_, &saved_value_,
-                                        logger_);
-        RecordTick(statistics_, MERGE_OPERATION_TOTAL_TIME,
-                   timer.ElapsedNanos());
+        user_merge_operator_->FullMerge(saved_key_.GetKey(), nullptr, operands,
+                                        &saved_value_, logger_);
       } else {
         assert(last_not_merge_type == kTypeValue);
         std::string last_put_value = saved_value_;
         Slice temp_slice(last_put_value);
-        {
-          StopWatchNano timer(env_, statistics_ != nullptr);
-          PERF_TIMER_GUARD(merge_operator_time_nanos);
-          user_merge_operator_->FullMerge(saved_key_.GetKey(), &temp_slice,
-                                          merge_operands_, &saved_value_,
-                                          logger_);
-          RecordTick(statistics_, MERGE_OPERATION_TOTAL_TIME,
-                     timer.ElapsedNanos());
-        }
+        user_merge_operator_->FullMerge(saved_key_.GetKey(), &temp_slice,
+                                        operands, &saved_value_, logger_);
       }
       break;
     case kTypeValue:
@@ -654,8 +466,7 @@ bool DBIter::FindValueForCurrentKeyUsingSeek() {
   ParsedInternalKey ikey;
   FindParseableKey(&ikey, kForward);
 
-  if (ikey.type == kTypeValue || ikey.type == kTypeDeletion ||
-      ikey.type == kTypeSingleDeletion) {
+  if (ikey.type == kTypeValue || ikey.type == kTypeDeletion) {
     if (ikey.type == kTypeValue) {
       saved_value_ = iter_->value().ToString();
       valid_ = true;
@@ -669,7 +480,7 @@ bool DBIter::FindValueForCurrentKeyUsingSeek() {
   // in operands
   std::deque<std::string> operands;
   while (iter_->Valid() &&
-         user_comparator_->Equal(ikey.user_key, saved_key_.GetKey()) &&
+         (user_comparator_->Compare(ikey.user_key, saved_key_.GetKey()) == 0) &&
          ikey.type == kTypeMerge) {
     operands.push_front(iter_->value().ToString());
     iter_->Next();
@@ -677,18 +488,14 @@ bool DBIter::FindValueForCurrentKeyUsingSeek() {
   }
 
   if (!iter_->Valid() ||
-      !user_comparator_->Equal(ikey.user_key, saved_key_.GetKey()) ||
-      ikey.type == kTypeDeletion || ikey.type == kTypeSingleDeletion) {
-    {
-      StopWatchNano timer(env_, statistics_ != nullptr);
-      PERF_TIMER_GUARD(merge_operator_time_nanos);
-      user_merge_operator_->FullMerge(saved_key_.GetKey(), nullptr, operands,
-                                      &saved_value_, logger_);
-      RecordTick(statistics_, MERGE_OPERATION_TOTAL_TIME, timer.ElapsedNanos());
-    }
+      (user_comparator_->Compare(ikey.user_key, saved_key_.GetKey()) != 0) ||
+      ikey.type == kTypeDeletion) {
+    user_merge_operator_->FullMerge(saved_key_.GetKey(), nullptr, operands,
+                                    &saved_value_, logger_);
+
     // Make iter_ valid and point to saved_key_
     if (!iter_->Valid() ||
-        !user_comparator_->Equal(ikey.user_key, saved_key_.GetKey())) {
+        (user_comparator_->Compare(ikey.user_key, saved_key_.GetKey()) != 0)) {
       iter_->Seek(last_key);
       RecordTick(statistics_, NUMBER_OF_RESEEKS_IN_ITERATION);
     }
@@ -696,14 +503,9 @@ bool DBIter::FindValueForCurrentKeyUsingSeek() {
     return true;
   }
 
-  const Slice& val = iter_->value();
-  {
-    StopWatchNano timer(env_, statistics_ != nullptr);
-    PERF_TIMER_GUARD(merge_operator_time_nanos);
-    user_merge_operator_->FullMerge(saved_key_.GetKey(), &val, operands,
-                                    &saved_value_, logger_);
-    RecordTick(statistics_, MERGE_OPERATION_TOTAL_TIME, timer.ElapsedNanos());
-  }
+  const Slice& value = iter_->value();
+  user_merge_operator_->FullMerge(saved_key_.GetKey(), &value, operands,
+                                  &saved_value_, logger_);
   valid_ = true;
   return true;
 }
@@ -719,7 +521,7 @@ void DBIter::FindNextUserKey() {
   ParsedInternalKey ikey;
   FindParseableKey(&ikey, kForward);
   while (iter_->Valid() &&
-         !user_comparator_->Equal(ikey.user_key, saved_key_.GetKey())) {
+         user_comparator_->Compare(ikey.user_key, saved_key_.GetKey()) != 0) {
     iter_->Next();
     FindParseableKey(&ikey, kForward);
   }
@@ -733,23 +535,19 @@ void DBIter::FindPrevUserKey() {
   size_t num_skipped = 0;
   ParsedInternalKey ikey;
   FindParseableKey(&ikey, kReverse);
-  int cmp;
-  while (iter_->Valid() && ((cmp = user_comparator_->Compare(
-                                 ikey.user_key, saved_key_.GetKey())) == 0 ||
-                            (cmp > 0 && ikey.sequence > sequence_))) {
-    if (cmp == 0) {
-      if (num_skipped >= max_skip_) {
-        num_skipped = 0;
-        IterKey last_key;
-        last_key.SetInternalKey(ParsedInternalKey(
-            saved_key_.GetKey(), kMaxSequenceNumber, kValueTypeForSeek));
-        iter_->Seek(last_key.GetKey());
-        RecordTick(statistics_, NUMBER_OF_RESEEKS_IN_ITERATION);
-      } else {
-        ++num_skipped;
-      }
+  while (iter_->Valid() &&
+         user_comparator_->Compare(ikey.user_key, saved_key_.GetKey()) == 0) {
+    if (num_skipped >= max_skip_) {
+      num_skipped = 0;
+      IterKey last_key;
+      last_key.SetInternalKey(ParsedInternalKey(
+          saved_key_.GetKey(), kMaxSequenceNumber, kValueTypeForSeek));
+      iter_->Seek(last_key.GetKey());
+      RecordTick(statistics_, NUMBER_OF_RESEEKS_IN_ITERATION);
     }
+
     iter_->Prev();
+    ++num_skipped;
     FindParseableKey(&ikey, kReverse);
   }
 }
@@ -767,6 +565,21 @@ void DBIter::FindParseableKey(ParsedInternalKey* ikey, Direction direction) {
 
 void DBIter::Seek(const Slice& target) {
   StopWatch sw(env_, statistics_, DB_SEEK);
+
+  // total ordering is not guaranteed if prefix_extractor is set
+  // hence prefix based seeks will not give correct results
+  if (iterate_upper_bound_ != nullptr && prefix_extractor_ != nullptr) {
+    if (!prefix_extractor_->InDomain(*iterate_upper_bound_) ||
+        !prefix_extractor_->InDomain(target) ||
+        prefix_extractor_->Transform(*iterate_upper_bound_).compare(
+          prefix_extractor_->Transform(target)) != 0) {
+      status_ = Status::InvalidArgument("read_options.iterate_*_bound "
+                  " and seek target need to have the same prefix.");
+      valid_ = false;
+      return;
+    }
+  }
+
   saved_key_.Clear();
   // now savved_key is used to store internal key.
   saved_key_.SetInternalKey(target, sequence_);
@@ -776,28 +589,18 @@ void DBIter::Seek(const Slice& target) {
     iter_->Seek(saved_key_.GetKey());
   }
 
-  RecordTick(statistics_, NUMBER_DB_SEEK);
   if (iter_->Valid()) {
     direction_ = kForward;
     ClearSavedValue();
-    FindNextUserEntry(false /* not skipping */);
-    if (statistics_ != nullptr) {
-      if (valid_) {
-        RecordTick(statistics_, NUMBER_DB_SEEK_FOUND);
-        RecordTick(statistics_, ITER_BYTES_READ, key().size() + value().size());
-      }
-    }
+    FindNextUserEntry(false /*not skipping */);
   } else {
     valid_ = false;
   }
-  if (valid_ && prefix_extractor_ && prefix_same_as_start_) {
-    prefix_start_.SetKey(prefix_extractor_->Transform(target));
-  }
 }
 
 void DBIter::SeekToFirst() {
   // Don't use iter_::Seek() if we set a prefix extractor
-  // because prefix seek will be used.
+  // because prefix seek wiil be used.
   if (prefix_extractor_ != nullptr) {
     max_skip_ = std::numeric_limits<uint64_t>::max();
   }
@@ -809,26 +612,16 @@ void DBIter::SeekToFirst() {
     iter_->SeekToFirst();
   }
 
-  RecordTick(statistics_, NUMBER_DB_SEEK);
   if (iter_->Valid()) {
     FindNextUserEntry(false /* not skipping */);
-    if (statistics_ != nullptr) {
-      if (valid_) {
-        RecordTick(statistics_, NUMBER_DB_SEEK_FOUND);
-        RecordTick(statistics_, ITER_BYTES_READ, key().size() + value().size());
-      }
-    }
   } else {
     valid_ = false;
   }
-  if (valid_ && prefix_extractor_ && prefix_same_as_start_) {
-    prefix_start_.SetKey(prefix_extractor_->Transform(saved_key_.GetKey()));
-  }
 }
 
 void DBIter::SeekToLast() {
   // Don't use iter_::Seek() if we set a prefix extractor
-  // because prefix seek will be used.
+  // because prefix seek wiil be used.
   if (prefix_extractor_ != nullptr) {
     max_skip_ = std::numeric_limits<uint64_t>::max();
   }
@@ -839,64 +632,26 @@ void DBIter::SeekToLast() {
     PERF_TIMER_GUARD(seek_internal_seek_time);
     iter_->SeekToLast();
   }
-  // When the iterate_upper_bound is set to a value,
-  // it will seek to the last key before the
-  // ReadOptions.iterate_upper_bound
-  if (iter_->Valid() && iterate_upper_bound_ != nullptr) {
-    saved_key_.SetKey(*iterate_upper_bound_, false /* copy */);
-    std::string last_key;
-    AppendInternalKey(&last_key,
-                      ParsedInternalKey(saved_key_.GetKey(), kMaxSequenceNumber,
-                                        kValueTypeForSeek));
 
-    iter_->Seek(last_key);
-
-    if (!iter_->Valid()) {
-      iter_->SeekToLast();
-    } else {
-      iter_->Prev();
-      if (!iter_->Valid()) {
-        valid_ = false;
-        return;
-      }
-    }
-  }
   PrevInternal();
-  if (statistics_ != nullptr) {
-    RecordTick(statistics_, NUMBER_DB_SEEK);
-    if (valid_) {
-      RecordTick(statistics_, NUMBER_DB_SEEK_FOUND);
-      RecordTick(statistics_, ITER_BYTES_READ, key().size() + value().size());
-    }
-  }
-  if (valid_ && prefix_extractor_ && prefix_same_as_start_) {
-    prefix_start_.SetKey(prefix_extractor_->Transform(saved_key_.GetKey()));
-  }
 }
 
 Iterator* NewDBIterator(Env* env, const ImmutableCFOptions& ioptions,
                         const Comparator* user_key_comparator,
-                        InternalIterator* internal_iter,
+                        Iterator* internal_iter,
                         const SequenceNumber& sequence,
                         uint64_t max_sequential_skip_in_iterations,
-                        uint64_t version_number,
-                        const Slice* iterate_upper_bound,
-                        bool prefix_same_as_start, bool pin_data) {
-  DBIter* db_iter =
-      new DBIter(env, ioptions, user_key_comparator, internal_iter, sequence,
-                 false, max_sequential_skip_in_iterations, version_number,
-                 iterate_upper_bound, prefix_same_as_start);
-  if (pin_data) {
-    db_iter->PinData();
-  }
-  return db_iter;
+                        const Slice* iterate_upper_bound) {
+  return new DBIter(env, ioptions, user_key_comparator, internal_iter, sequence,
+                    false, max_sequential_skip_in_iterations,
+                    iterate_upper_bound);
 }
 
 ArenaWrappedDBIter::~ArenaWrappedDBIter() { db_iter_->~DBIter(); }
 
 void ArenaWrappedDBIter::SetDBIter(DBIter* iter) { db_iter_ = iter; }
 
-void ArenaWrappedDBIter::SetIterUnderDBIter(InternalIterator* iter) {
+void ArenaWrappedDBIter::SetIterUnderDBIter(Iterator* iter) {
   static_cast<DBIter*>(db_iter_)->SetIter(iter);
 }
 
@@ -911,14 +666,6 @@ inline void ArenaWrappedDBIter::Prev() { db_iter_->Prev(); }
 inline Slice ArenaWrappedDBIter::key() const { return db_iter_->key(); }
 inline Slice ArenaWrappedDBIter::value() const { return db_iter_->value(); }
 inline Status ArenaWrappedDBIter::status() const { return db_iter_->status(); }
-inline Status ArenaWrappedDBIter::PinData() { return db_iter_->PinData(); }
-inline Status ArenaWrappedDBIter::GetProperty(std::string prop_name,
-                                              std::string* prop) {
-  return db_iter_->GetProperty(prop_name, prop);
-}
-inline Status ArenaWrappedDBIter::ReleasePinnedData() {
-  return db_iter_->ReleasePinnedData();
-}
 void ArenaWrappedDBIter::RegisterCleanup(CleanupFunction function, void* arg1,
                                          void* arg2) {
   db_iter_->RegisterCleanup(function, arg1, arg2);
@@ -926,22 +673,18 @@ void ArenaWrappedDBIter::RegisterCleanup(CleanupFunction function, void* arg1,
 
 ArenaWrappedDBIter* NewArenaWrappedDbIterator(
     Env* env, const ImmutableCFOptions& ioptions,
-    const Comparator* user_key_comparator, const SequenceNumber& sequence,
-    uint64_t max_sequential_skip_in_iterations, uint64_t version_number,
-    const Slice* iterate_upper_bound, bool prefix_same_as_start,
-    bool pin_data) {
+    const Comparator* user_key_comparator,
+    const SequenceNumber& sequence,
+    uint64_t max_sequential_skip_in_iterations,
+    const Slice* iterate_upper_bound) {
   ArenaWrappedDBIter* iter = new ArenaWrappedDBIter();
   Arena* arena = iter->GetArena();
   auto mem = arena->AllocateAligned(sizeof(DBIter));
-  DBIter* db_iter =
-      new (mem) DBIter(env, ioptions, user_key_comparator, nullptr, sequence,
-                       true, max_sequential_skip_in_iterations, version_number,
-                       iterate_upper_bound, prefix_same_as_start);
+  DBIter* db_iter = new (mem) DBIter(env, ioptions, user_key_comparator,
+      nullptr, sequence, true, max_sequential_skip_in_iterations,
+      iterate_upper_bound);
 
   iter->SetDBIter(db_iter);
-  if (pin_data) {
-    iter->PinData();
-  }
 
   return iter;
 }

db/db_iter.h

@@ -1,4 +1,4 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+//  Copyright (c) 2013, Facebook, Inc.  All rights reserved.
 //  This source code is licensed under the BSD-style license found in the
 //  LICENSE file in the root directory of this source tree. An additional grant
 //  of patent rights can be found in the PATENTS file in the same directory.
@@ -9,9 +9,7 @@
 
 #pragma once
 #include <stdint.h>
-#include <string>
 #include "rocksdb/db.h"
-#include "rocksdb/iterator.h"
 #include "db/dbformat.h"
 #include "util/arena.h"
 #include "util/autovector.h"
@@ -20,17 +18,18 @@ namespace rocksdb {
 
 class Arena;
 class DBIter;
-class InternalIterator;
 
 // Return a new iterator that converts internal keys (yielded by
 // "*internal_iter") that were live at the specified "sequence" number
 // into appropriate user keys.
 extern Iterator* NewDBIterator(
-    Env* env, const ImmutableCFOptions& options,
-    const Comparator* user_key_comparator, InternalIterator* internal_iter,
-    const SequenceNumber& sequence, uint64_t max_sequential_skip_in_iterations,
-    uint64_t version_number, const Slice* iterate_upper_bound = nullptr,
-    bool prefix_same_as_start = false, bool pin_data = false);
+    Env* env,
+    const ImmutableCFOptions& options,
+    const Comparator *user_key_comparator,
+    Iterator* internal_iter,
+    const SequenceNumber& sequence,
+    uint64_t max_sequential_skip_in_iterations,
+    const Slice* iterate_upper_bound = nullptr);
 
 // A wrapper iterator which wraps DB Iterator and the arena, with which the DB
 // iterator is supposed be allocated. This class is used as an entry point of
@@ -51,7 +50,7 @@ class ArenaWrappedDBIter : public Iterator {
 
   // Set the internal iterator wrapped inside the DB Iterator. Usually it is
   // a merging iterator.
-  virtual void SetIterUnderDBIter(InternalIterator* iter);
+  virtual void SetIterUnderDBIter(Iterator* iter);
   virtual bool Valid() const override;
   virtual void SeekToFirst() override;
   virtual void SeekToLast() override;
@@ -61,11 +60,7 @@ class ArenaWrappedDBIter : public Iterator {
   virtual Slice key() const override;
   virtual Slice value() const override;
   virtual Status status() const override;
-
   void RegisterCleanup(CleanupFunction function, void* arg1, void* arg2);
-  virtual Status PinData();
-  virtual Status ReleasePinnedData();
-  virtual Status GetProperty(std::string prop_name, std::string* prop) override;
 
  private:
   DBIter* db_iter_;
@@ -75,9 +70,8 @@ class ArenaWrappedDBIter : public Iterator {
 // Generate the arena wrapped iterator class.
 extern ArenaWrappedDBIter* NewArenaWrappedDbIterator(
     Env* env, const ImmutableCFOptions& options,
-    const Comparator* user_key_comparator, const SequenceNumber& sequence,
-    uint64_t max_sequential_skip_in_iterations, uint64_t version_number,
-    const Slice* iterate_upper_bound = nullptr,
-    bool prefix_same_as_start = false, bool pin_data = false);
+    const Comparator* user_key_comparator,
+    const SequenceNumber& sequence, uint64_t max_sequential_skip_in_iterations,
+    const Slice* iterate_upper_bound = nullptr);
 
 }  // namespace rocksdb

db/db_log_iter_test.cc

@@ -1,290 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under the BSD-style license found in the
-//  LICENSE file in the root directory of this source tree. An additional grant
-//  of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-// Introduction of SyncPoint effectively disabled building and running this test
-// in Release build.
-// which is a pity, it is a good test
-#if !defined(ROCKSDB_LITE)
-
-#include "db/db_test_util.h"
-#include "port/stack_trace.h"
-
-namespace rocksdb {
-
-class DBTestXactLogIterator : public DBTestBase {
- public:
-  DBTestXactLogIterator() : DBTestBase("/db_log_iter_test") {}
-
-  std::unique_ptr<TransactionLogIterator> OpenTransactionLogIter(
-      const SequenceNumber seq) {
-    unique_ptr<TransactionLogIterator> iter;
-    Status status = dbfull()->GetUpdatesSince(seq, &iter);
-    EXPECT_OK(status);
-    EXPECT_TRUE(iter->Valid());
-    return iter;
-  }
-};
-
-namespace {
-SequenceNumber ReadRecords(
-    std::unique_ptr<TransactionLogIterator>& iter,
-    int& count) {
-  count = 0;
-  SequenceNumber lastSequence = 0;
-  BatchResult res;
-  while (iter->Valid()) {
-    res = iter->GetBatch();
-    EXPECT_TRUE(res.sequence > lastSequence);
-    ++count;
-    lastSequence = res.sequence;
-    EXPECT_OK(iter->status());
-    iter->Next();
-  }
-  return res.sequence;
-}
-
-void ExpectRecords(
-    const int expected_no_records,
-    std::unique_ptr<TransactionLogIterator>& iter) {
-  int num_records;
-  ReadRecords(iter, num_records);
-  ASSERT_EQ(num_records, expected_no_records);
-}
-}  // namespace
-
-TEST_F(DBTestXactLogIterator, TransactionLogIterator) {
-  do {
-    Options options = OptionsForLogIterTest();
-    DestroyAndReopen(options);
-    CreateAndReopenWithCF({"pikachu"}, options);
-    Put(0, "key1", DummyString(1024));
-    Put(1, "key2", DummyString(1024));
-    Put(1, "key2", DummyString(1024));
-    ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 3U);
-    {
-      auto iter = OpenTransactionLogIter(0);
-      ExpectRecords(3, iter);
-    }
-    ReopenWithColumnFamilies({"default", "pikachu"}, options);
-    env_->SleepForMicroseconds(2 * 1000 * 1000);
-    {
-      Put(0, "key4", DummyString(1024));
-      Put(1, "key5", DummyString(1024));
-      Put(0, "key6", DummyString(1024));
-    }
-    {
-      auto iter = OpenTransactionLogIter(0);
-      ExpectRecords(6, iter);
-    }
-  } while (ChangeCompactOptions());
-}
-
-#ifndef NDEBUG  // sync point is not included with DNDEBUG build
-TEST_F(DBTestXactLogIterator, TransactionLogIteratorRace) {
-  static const int LOG_ITERATOR_RACE_TEST_COUNT = 2;
-  static const char* sync_points[LOG_ITERATOR_RACE_TEST_COUNT][4] = {
-      {"WalManager::GetSortedWalFiles:1",  "WalManager::PurgeObsoleteFiles:1",
-       "WalManager::PurgeObsoleteFiles:2", "WalManager::GetSortedWalFiles:2"},
-      {"WalManager::GetSortedWalsOfType:1",
-       "WalManager::PurgeObsoleteFiles:1",
-       "WalManager::PurgeObsoleteFiles:2",
-       "WalManager::GetSortedWalsOfType:2"}};
-  for (int test = 0; test < LOG_ITERATOR_RACE_TEST_COUNT; ++test) {
-    // Setup sync point dependency to reproduce the race condition of
-    // a log file moved to archived dir, in the middle of GetSortedWalFiles
-    rocksdb::SyncPoint::GetInstance()->LoadDependency(
-      { { sync_points[test][0], sync_points[test][1] },
-        { sync_points[test][2], sync_points[test][3] },
-      });
-
-    do {
-      rocksdb::SyncPoint::GetInstance()->ClearTrace();
-      rocksdb::SyncPoint::GetInstance()->DisableProcessing();
-      Options options = OptionsForLogIterTest();
-      DestroyAndReopen(options);
-      Put("key1", DummyString(1024));
-      dbfull()->Flush(FlushOptions());
-      Put("key2", DummyString(1024));
-      dbfull()->Flush(FlushOptions());
-      Put("key3", DummyString(1024));
-      dbfull()->Flush(FlushOptions());
-      Put("key4", DummyString(1024));
-      ASSERT_EQ(dbfull()->GetLatestSequenceNumber(), 4U);
-
-      {
-        auto iter = OpenTransactionLogIter(0);
-        ExpectRecords(4, iter);
-      }
-
-      rocksdb::SyncPoint::GetInstance()->EnableProcessing();
-      // trigger async flush, and log move. Well, log move will
-      // wait until the GetSortedWalFiles:1 to reproduce the race
-      // condition
-      FlushOptions flush_options;
-      flush_options.wait = false;
-      dbfull()->Flush(flush_options);
-
-      // "key5" would be written in a new memtable and log
-      Put("key5", DummyString(1024));
-      {
-        // this iter would miss "key4" if not fixed
-        auto iter = OpenTransactionLogIter(0);
-        ExpectRecords(5, iter);
-      }
-    } while (ChangeCompactOptions());
-  }
-}
-#endif
-
-TEST_F(DBTestXactLogIterator, TransactionLogIteratorStallAtLastRecord) {
-  do {
-    Options options = OptionsForLogIterTest();
-    DestroyAndReopen(options);
-    Put("key1", DummyString(1024));
-    auto iter = OpenTransactionLogIter(0);
-    ASSERT_OK(iter->status());
-    ASSERT_TRUE(iter->Valid());
-    iter->Next();
-    ASSERT_TRUE(!iter->Valid());
-    ASSERT_OK(iter->status());
-    Put("key2", DummyString(1024));
-    iter->Next();
-    ASSERT_OK(iter->status());
-    ASSERT_TRUE(iter->Valid());
-  } while (ChangeCompactOptions());
-}
-
-TEST_F(DBTestXactLogIterator, TransactionLogIteratorCheckAfterRestart) {
-  do {
-    Options options = OptionsForLogIterTest();
-    DestroyAndReopen(options);
-    Put("key1", DummyString(1024));
-    Put("key2", DummyString(1023));
-    dbfull()->Flush(FlushOptions());
-    Reopen(options);
-    auto iter = OpenTransactionLogIter(0);
-    ExpectRecords(2, iter);
-  } while (ChangeCompactOptions());
-}
-
-TEST_F(DBTestXactLogIterator, TransactionLogIteratorCorruptedLog) {
-  do {
-    Options options = OptionsForLogIterTest();
-    DestroyAndReopen(options);
-    for (int i = 0; i < 1024; i++) {
-      Put("key"+ToString(i), DummyString(10));
-    }
-    dbfull()->Flush(FlushOptions());
-    // Corrupt this log to create a gap
-    rocksdb::VectorLogPtr wal_files;
-    ASSERT_OK(dbfull()->GetSortedWalFiles(wal_files));
-    const auto logfile_path = dbname_ + "/" + wal_files.front()->PathName();
-    if (mem_env_) {
-      mem_env_->Truncate(logfile_path, wal_files.front()->SizeFileBytes() / 2);
-    } else {
-      ASSERT_EQ(0, truncate(logfile_path.c_str(),
-                   wal_files.front()->SizeFileBytes() / 2));
-    }
-
-    // Insert a new entry to a new log file
-    Put("key1025", DummyString(10));
-    // Try to read from the beginning. Should stop before the gap and read less
-    // than 1025 entries
-    auto iter = OpenTransactionLogIter(0);
-    int count;
-    SequenceNumber last_sequence_read = ReadRecords(iter, count);
-    ASSERT_LT(last_sequence_read, 1025U);
-    // Try to read past the gap, should be able to seek to key1025
-    auto iter2 = OpenTransactionLogIter(last_sequence_read + 1);
-    ExpectRecords(1, iter2);
-  } while (ChangeCompactOptions());
-}
-
-TEST_F(DBTestXactLogIterator, TransactionLogIteratorBatchOperations) {
-  do {
-    Options options = OptionsForLogIterTest();
-    DestroyAndReopen(options);
-    CreateAndReopenWithCF({"pikachu"}, options);
-    WriteBatch batch;
-    batch.Put(handles_[1], "key1", DummyString(1024));
-    batch.Put(handles_[0], "key2", DummyString(1024));
-    batch.Put(handles_[1], "key3", DummyString(1024));
-    batch.Delete(handles_[0], "key2");
-    dbfull()->Write(WriteOptions(), &batch);
-    Flush(1);
-    Flush(0);
-    ReopenWithColumnFamilies({"default", "pikachu"}, options);
-    Put(1, "key4", DummyString(1024));
-    auto iter = OpenTransactionLogIter(3);
-    ExpectRecords(2, iter);
-  } while (ChangeCompactOptions());
-}
-
-TEST_F(DBTestXactLogIterator, TransactionLogIteratorBlobs) {
-  Options options = OptionsForLogIterTest();
-  DestroyAndReopen(options);
-  CreateAndReopenWithCF({"pikachu"}, options);
-  {
-    WriteBatch batch;
-    batch.Put(handles_[1], "key1", DummyString(1024));
-    batch.Put(handles_[0], "key2", DummyString(1024));
-    batch.PutLogData(Slice("blob1"));
-    batch.Put(handles_[1], "key3", DummyString(1024));
-    batch.PutLogData(Slice("blob2"));
-    batch.Delete(handles_[0], "key2");
-    dbfull()->Write(WriteOptions(), &batch);
-    ReopenWithColumnFamilies({"default", "pikachu"}, options);
-  }
-
-  auto res = OpenTransactionLogIter(0)->GetBatch();
-  struct Handler : public WriteBatch::Handler {
-    std::string seen;
-    virtual Status PutCF(uint32_t cf, const Slice& key,
-                         const Slice& value) override {
-      seen += "Put(" + ToString(cf) + ", " + key.ToString() + ", " +
-              ToString(value.size()) + ")";
-      return Status::OK();
-    }
-    virtual Status MergeCF(uint32_t cf, const Slice& key,
-                           const Slice& value) override {
-      seen += "Merge(" + ToString(cf) + ", " + key.ToString() + ", " +
-              ToString(value.size()) + ")";
-      return Status::OK();
-    }
-    virtual void LogData(const Slice& blob) override {
-      seen += "LogData(" + blob.ToString() + ")";
-    }
-    virtual Status DeleteCF(uint32_t cf, const Slice& key) override {
-      seen += "Delete(" + ToString(cf) + ", " + key.ToString() + ")";
-      return Status::OK();
-    }
-  } handler;
-  res.writeBatchPtr->Iterate(&handler);
-  ASSERT_EQ(
-      "Put(1, key1, 1024)"
-      "Put(0, key2, 1024)"
-      "LogData(blob1)"
-      "Put(1, key3, 1024)"
-      "LogData(blob2)"
-      "Delete(0, key2)",
-      handler.seen);
-}
-}  // namespace rocksdb
-
-#endif  // !defined(ROCKSDB_LITE)
-
-int main(int argc, char** argv) {
-#if !defined(ROCKSDB_LITE)
-  rocksdb::port::InstallStackTraceHandler();
-  ::testing::InitGoogleTest(&argc, argv);
-  return RUN_ALL_TESTS();
-#else
-  return 0;
-#endif
-}

db/db_table_properties_test.cc

@@ -1,226 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under the BSD-style license found in the
-//  LICENSE file in the root directory of this source tree. An additional grant
-//  of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include <unordered_set>
-#include <vector>
-
-#include "db/db_test_util.h"
-#include "port/stack_trace.h"
-#include "rocksdb/db.h"
-#include "util/testharness.h"
-#include "util/testutil.h"
-
-#ifndef ROCKSDB_LITE
-
-namespace rocksdb {
-
-// A helper function that ensures the table properties returned in
-// `GetPropertiesOfAllTablesTest` is correct.
-// This test assumes entries size is different for each of the tables.
-namespace {
-
-void VerifyTableProperties(DB* db, uint64_t expected_entries_size) {
-  TablePropertiesCollection props;
-  ASSERT_OK(db->GetPropertiesOfAllTables(&props));
-
-  ASSERT_EQ(4U, props.size());
-  std::unordered_set<uint64_t> unique_entries;
-
-  // Indirect test
-  uint64_t sum = 0;
-  for (const auto& item : props) {
-    unique_entries.insert(item.second->num_entries);
-    sum += item.second->num_entries;
-  }
-
-  ASSERT_EQ(props.size(), unique_entries.size());
-  ASSERT_EQ(expected_entries_size, sum);
-}
-}  // namespace
-
-class DBTablePropertiesTest : public DBTestBase {
- public:
-  DBTablePropertiesTest() : DBTestBase("/db_table_properties_test") {}
-  TablePropertiesCollection TestGetPropertiesOfTablesInRange(
-      std::vector<Range> ranges, std::size_t* num_properties = nullptr,
-      std::size_t* num_files = nullptr);
-};
-
-TEST_F(DBTablePropertiesTest, GetPropertiesOfAllTablesTest) {
-  Options options = CurrentOptions();
-  options.level0_file_num_compaction_trigger = 8;
-  Reopen(options);
-  // Create 4 tables
-  for (int table = 0; table < 4; ++table) {
-    for (int i = 0; i < 10 + table; ++i) {
-      db_->Put(WriteOptions(), ToString(table * 100 + i), "val");
-    }
-    db_->Flush(FlushOptions());
-  }
-
-  // 1. Read table properties directly from file
-  Reopen(options);
-  VerifyTableProperties(db_, 10 + 11 + 12 + 13);
-
-  // 2. Put two tables to table cache and
-  Reopen(options);
-  // fetch key from 1st and 2nd table, which will internally place that table to
-  // the table cache.
-  for (int i = 0; i < 2; ++i) {
-    Get(ToString(i * 100 + 0));
-  }
-
-  VerifyTableProperties(db_, 10 + 11 + 12 + 13);
-
-  // 3. Put all tables to table cache
-  Reopen(options);
-  // fetch key from 1st and 2nd table, which will internally place that table to
-  // the table cache.
-  for (int i = 0; i < 4; ++i) {
-    Get(ToString(i * 100 + 0));
-  }
-  VerifyTableProperties(db_, 10 + 11 + 12 + 13);
-}
-
-TablePropertiesCollection
-DBTablePropertiesTest::TestGetPropertiesOfTablesInRange(
-    std::vector<Range> ranges, std::size_t* num_properties,
-    std::size_t* num_files) {
-
-  // Since we deref zero element in the vector it can not be empty
-  // otherwise we pass an address to some random memory
-  EXPECT_GT(ranges.size(), 0U);
-  // run the query
-  TablePropertiesCollection props;
-  EXPECT_OK(db_->GetPropertiesOfTablesInRange(
-      db_->DefaultColumnFamily(), &ranges[0], ranges.size(), &props));
-
-  // Make sure that we've received properties for those and for those files
-  // only which fall within requested ranges
-  std::vector<LiveFileMetaData> vmd;
-  db_->GetLiveFilesMetaData(&vmd);
-  for (auto& md : vmd) {
-    std::string fn = md.db_path + md.name;
-    bool in_range = false;
-    for (auto& r : ranges) {
-      // smallestkey < limit && largestkey >= start
-      if (r.limit.compare(md.smallestkey) >= 0 &&
-          r.start.compare(md.largestkey) <= 0) {
-        in_range = true;
-        EXPECT_GT(props.count(fn), 0);
-      }
-    }
-    if (!in_range) {
-      EXPECT_EQ(props.count(fn), 0);
-    }
-  }
-
-  if (num_properties) {
-    *num_properties = props.size();
-  }
-
-  if (num_files) {
-    *num_files = vmd.size();
-  }
-  return props;
-}
-
-TEST_F(DBTablePropertiesTest, GetPropertiesOfTablesInRange) {
-  // Fixed random sead
-  Random rnd(301);
-
-  Options options;
-  options.create_if_missing = true;
-  options.write_buffer_size = 4096;
-  options.max_write_buffer_number = 8;
-  options.level0_file_num_compaction_trigger = 2;
-  options.level0_slowdown_writes_trigger = 2;
-  options.level0_stop_writes_trigger = 4;
-  options.target_file_size_base = 2048;
-  options.max_bytes_for_level_base = 10240;
-  options.max_bytes_for_level_multiplier = 4;
-  options.soft_rate_limit = 1.1;
-  options.num_levels = 8;
-
-  DestroyAndReopen(options);
-
-  // build a decent LSM
-  for (int i = 0; i < 10000; i++) {
-    ASSERT_OK(Put(test::RandomKey(&rnd, 5), RandomString(&rnd, 102)));
-  }
-  Flush();
-  db_->PauseBackgroundWork();
-
-  // Ensure that we have at least L0, L1 and L2
-  ASSERT_GT(NumTableFilesAtLevel(0), 0);
-  ASSERT_GT(NumTableFilesAtLevel(1), 0);
-  ASSERT_GT(NumTableFilesAtLevel(2), 0);
-
-  // Query the largest range
-  std::size_t num_properties, num_files;
-  TestGetPropertiesOfTablesInRange(
-      {Range(test::RandomKey(&rnd, 5, test::RandomKeyType::SMALLEST),
-             test::RandomKey(&rnd, 5, test::RandomKeyType::LARGEST))},
-      &num_properties, &num_files);
-  ASSERT_EQ(num_properties, num_files);
-
-  // Query the empty range
-  TestGetPropertiesOfTablesInRange(
-      {Range(test::RandomKey(&rnd, 5, test::RandomKeyType::LARGEST),
-             test::RandomKey(&rnd, 5, test::RandomKeyType::SMALLEST))},
-      &num_properties, &num_files);
-  ASSERT_GT(num_files, 0);
-  ASSERT_EQ(num_properties, 0);
-
-  // Query the middle rangee
-  TestGetPropertiesOfTablesInRange(
-      {Range(test::RandomKey(&rnd, 5, test::RandomKeyType::MIDDLE),
-             test::RandomKey(&rnd, 5, test::RandomKeyType::LARGEST))},
-      &num_properties, &num_files);
-  ASSERT_GT(num_files, 0);
-  ASSERT_GT(num_files, num_properties);
-  ASSERT_GT(num_properties, 0);
-
-  // Query a bunch of random ranges
-  for (int j = 0; j < 100; j++) {
-    // create a bunch of ranges
-    std::vector<std::string> random_keys;
-    // Random returns numbers with zero included
-    // when we pass empty ranges TestGetPropertiesOfTablesInRange()
-    // derefs random memory in the empty ranges[0]
-    // so want to be greater than zero and even since
-    // the below loop requires that random_keys.size() to be even.
-    auto n = 2 * (rnd.Uniform(50) + 1);
-
-    for (uint32_t i = 0; i < n; ++i) {
-      random_keys.push_back(test::RandomKey(&rnd, 5));
-    }
-
-    ASSERT_GT(random_keys.size(), 0U);
-    ASSERT_EQ((random_keys.size() % 2), 0U);
-
-    std::vector<Range> ranges;
-    auto it = random_keys.begin();
-    while (it != random_keys.end()) {
-      ranges.push_back(Range(*it, *(it + 1)));
-      it += 2;
-    }
-
-    TestGetPropertiesOfTablesInRange(std::move(ranges));
-  }
-}
-}  // namespace rocksdb
-
-#endif  // ROCKSDB_LITE
-
-int main(int argc, char** argv) {
-  rocksdb::port::InstallStackTraceHandler();
-  ::testing::InitGoogleTest(&argc, argv);
-  return RUN_ALL_TESTS();
-}

db/db_tailing_iter_test.cc

@@ -1,714 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under the BSD-style license found in the
-//  LICENSE file in the root directory of this source tree. An additional grant
-//  of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-// Introduction of SyncPoint effectively disabled building and running this test
-// in Release build.
-// which is a pity, it is a good test
-#if !defined(ROCKSDB_LITE)
-
-#include "db/db_test_util.h"
-#include "db/forward_iterator.h"
-#include "port/stack_trace.h"
-
-namespace rocksdb {
-
-class DBTestTailingIterator : public DBTestBase {
- public:
-  DBTestTailingIterator() : DBTestBase("/db_tailing_iterator_test") {}
-};
-
-TEST_F(DBTestTailingIterator, TailingIteratorSingle) {
-  ReadOptions read_options;
-  read_options.tailing = true;
-
-  std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
-  iter->SeekToFirst();
-  ASSERT_TRUE(!iter->Valid());
-
-  // add a record and check that iter can see it
-  ASSERT_OK(db_->Put(WriteOptions(), "mirko", "fodor"));
-  iter->SeekToFirst();
-  ASSERT_TRUE(iter->Valid());
-  ASSERT_EQ(iter->key().ToString(), "mirko");
-
-  iter->Next();
-  ASSERT_TRUE(!iter->Valid());
-}
-
-TEST_F(DBTestTailingIterator, TailingIteratorKeepAdding) {
-  CreateAndReopenWithCF({"pikachu"}, CurrentOptions());
-  ReadOptions read_options;
-  read_options.tailing = true;
-
-  std::unique_ptr<Iterator> iter(db_->NewIterator(read_options, handles_[1]));
-  std::string value(1024, 'a');
-
-  const int num_records = 10000;
-  for (int i = 0; i < num_records; ++i) {
-    char buf[32];
-    snprintf(buf, sizeof(buf), "%016d", i);
-
-    Slice key(buf, 16);
-    ASSERT_OK(Put(1, key, value));
-
-    iter->Seek(key);
-    ASSERT_TRUE(iter->Valid());
-    ASSERT_EQ(iter->key().compare(key), 0);
-  }
-}
-
-TEST_F(DBTestTailingIterator, TailingIteratorSeekToNext) {
-  CreateAndReopenWithCF({"pikachu"}, CurrentOptions());
-  ReadOptions read_options;
-  read_options.tailing = true;
-
-  std::unique_ptr<Iterator> iter(db_->NewIterator(read_options, handles_[1]));
-  std::unique_ptr<Iterator> itern(db_->NewIterator(read_options, handles_[1]));
-  std::string value(1024, 'a');
-
-  const int num_records = 1000;
-  for (int i = 1; i < num_records; ++i) {
-    char buf1[32];
-    char buf2[32];
-    snprintf(buf1, sizeof(buf1), "00a0%016d", i * 5);
-
-    Slice key(buf1, 20);
-    ASSERT_OK(Put(1, key, value));
-
-    if (i % 100 == 99) {
-      ASSERT_OK(Flush(1));
-    }
-
-    snprintf(buf2, sizeof(buf2), "00a0%016d", i * 5 - 2);
-    Slice target(buf2, 20);
-    iter->Seek(target);
-    ASSERT_TRUE(iter->Valid());
-    ASSERT_EQ(iter->key().compare(key), 0);
-    if (i == 1) {
-      itern->SeekToFirst();
-    } else {
-      itern->Next();
-    }
-    ASSERT_TRUE(itern->Valid());
-    ASSERT_EQ(itern->key().compare(key), 0);
-  }
-  rocksdb::SyncPoint::GetInstance()->ClearAllCallBacks();
-  rocksdb::SyncPoint::GetInstance()->DisableProcessing();
-  for (int i = 2 * num_records; i > 0; --i) {
-    char buf1[32];
-    char buf2[32];
-    snprintf(buf1, sizeof(buf1), "00a0%016d", i * 5);
-
-    Slice key(buf1, 20);
-    ASSERT_OK(Put(1, key, value));
-
-    if (i % 100 == 99) {
-      ASSERT_OK(Flush(1));
-    }
-
-    snprintf(buf2, sizeof(buf2), "00a0%016d", i * 5 - 2);
-    Slice target(buf2, 20);
-    iter->Seek(target);
-    ASSERT_TRUE(iter->Valid());
-    ASSERT_EQ(iter->key().compare(key), 0);
-  }
-}
-
-TEST_F(DBTestTailingIterator, TailingIteratorTrimSeekToNext) {
-  const uint64_t k150KB = 150 * 1024;
-  Options options;
-  options.write_buffer_size = k150KB;
-  options.max_write_buffer_number = 3;
-  options.min_write_buffer_number_to_merge = 2;
-  CreateAndReopenWithCF({"pikachu"}, options);
-  ReadOptions read_options;
-  read_options.tailing = true;
-  int num_iters, deleted_iters;
-
-  char bufe[32];
-  snprintf(bufe, sizeof(bufe), "00b0%016d", 0);
-  Slice keyu(bufe, 20);
-  read_options.iterate_upper_bound = &keyu;
-  std::unique_ptr<Iterator> iter(db_->NewIterator(read_options, handles_[1]));
-  std::unique_ptr<Iterator> itern(db_->NewIterator(read_options, handles_[1]));
-  std::unique_ptr<Iterator> iterh(db_->NewIterator(read_options, handles_[1]));
-  std::string value(1024, 'a');
-  bool file_iters_deleted = false;
-  bool file_iters_renewed_null = false;
-  bool file_iters_renewed_copy = false;
-  rocksdb::SyncPoint::GetInstance()->SetCallBack(
-      "ForwardIterator::SeekInternal:Return", [&](void* arg) {
-        ForwardIterator* fiter = reinterpret_cast<ForwardIterator*>(arg);
-        ASSERT_TRUE(!file_iters_deleted ||
-                    fiter->TEST_CheckDeletedIters(&deleted_iters, &num_iters));
-      });
-  rocksdb::SyncPoint::GetInstance()->SetCallBack(
-      "ForwardIterator::Next:Return", [&](void* arg) {
-        ForwardIterator* fiter = reinterpret_cast<ForwardIterator*>(arg);
-        ASSERT_TRUE(!file_iters_deleted ||
-                    fiter->TEST_CheckDeletedIters(&deleted_iters, &num_iters));
-      });
-  rocksdb::SyncPoint::GetInstance()->SetCallBack(
-      "ForwardIterator::RenewIterators:Null",
-      [&](void* arg) { file_iters_renewed_null = true; });
-  rocksdb::SyncPoint::GetInstance()->SetCallBack(
-      "ForwardIterator::RenewIterators:Copy",
-      [&](void* arg) { file_iters_renewed_copy = true; });
-  rocksdb::SyncPoint::GetInstance()->EnableProcessing();
-  const int num_records = 1000;
-  for (int i = 1; i < num_records; ++i) {
-    char buf1[32];
-    char buf2[32];
-    char buf3[32];
-    char buf4[32];
-    snprintf(buf1, sizeof(buf1), "00a0%016d", i * 5);
-    snprintf(buf3, sizeof(buf3), "00b0%016d", i * 5);
-
-    Slice key(buf1, 20);
-    ASSERT_OK(Put(1, key, value));
-    Slice keyn(buf3, 20);
-    ASSERT_OK(Put(1, keyn, value));
-
-    if (i % 100 == 99) {
-      ASSERT_OK(Flush(1));
-      dbfull()->TEST_WaitForCompact();
-      if (i == 299) {
-        file_iters_deleted = true;
-      }
-      snprintf(buf4, sizeof(buf4), "00a0%016d", i * 5 / 2);
-      Slice target(buf4, 20);
-      iterh->Seek(target);
-      ASSERT_TRUE(iter->Valid());
-      for (int j = (i + 1) * 5 / 2; j < i * 5; j += 5) {
-        iterh->Next();
-        ASSERT_TRUE(iterh->Valid());
-      }
-      if (i == 299) {
-        file_iters_deleted = false;
-      }
-    }
-
-    file_iters_deleted = true;
-    snprintf(buf2, sizeof(buf2), "00a0%016d", i * 5 - 2);
-    Slice target(buf2, 20);
-    iter->Seek(target);
-    ASSERT_TRUE(iter->Valid());
-    ASSERT_EQ(iter->key().compare(key), 0);
-    ASSERT_LE(num_iters, 1);
-    if (i == 1) {
-      itern->SeekToFirst();
-    } else {
-      itern->Next();
-    }
-    ASSERT_TRUE(itern->Valid());
-    ASSERT_EQ(itern->key().compare(key), 0);
-    ASSERT_LE(num_iters, 1);
-    file_iters_deleted = false;
-  }
-  ASSERT_TRUE(file_iters_renewed_null);
-  ASSERT_TRUE(file_iters_renewed_copy);
-  iter = 0;
-  itern = 0;
-  iterh = 0;
-  BlockBasedTableOptions table_options;
-  table_options.no_block_cache = true;
-  table_options.block_cache_compressed = nullptr;
-  options.table_factory.reset(NewBlockBasedTableFactory(table_options));
-  ReopenWithColumnFamilies({"default", "pikachu"}, options);
-  read_options.read_tier = kBlockCacheTier;
-  std::unique_ptr<Iterator> iteri(db_->NewIterator(read_options, handles_[1]));
-  char buf5[32];
-  snprintf(buf5, sizeof(buf5), "00a0%016d", (num_records / 2) * 5 - 2);
-  Slice target1(buf5, 20);
-  iteri->Seek(target1);
-  ASSERT_TRUE(iteri->status().IsIncomplete());
-  iteri = 0;
-
-  read_options.read_tier = kReadAllTier;
-  options.table_factory.reset(NewBlockBasedTableFactory());
-  ReopenWithColumnFamilies({"default", "pikachu"}, options);
-  iter.reset(db_->NewIterator(read_options, handles_[1]));
-  for (int i = 2 * num_records; i > 0; --i) {
-    char buf1[32];
-    char buf2[32];
-    snprintf(buf1, sizeof(buf1), "00a0%016d", i * 5);
-
-    Slice key(buf1, 20);
-    ASSERT_OK(Put(1, key, value));
-
-    if (i % 100 == 99) {
-      ASSERT_OK(Flush(1));
-    }
-
-    snprintf(buf2, sizeof(buf2), "00a0%016d", i * 5 - 2);
-    Slice target(buf2, 20);
-    iter->Seek(target);
-    ASSERT_TRUE(iter->Valid());
-    ASSERT_EQ(iter->key().compare(key), 0);
-  }
-}
-
-TEST_F(DBTestTailingIterator, TailingIteratorDeletes) {
-  CreateAndReopenWithCF({"pikachu"}, CurrentOptions());
-  ReadOptions read_options;
-  read_options.tailing = true;
-
-  std::unique_ptr<Iterator> iter(db_->NewIterator(read_options, handles_[1]));
-
-  // write a single record, read it using the iterator, then delete it
-  ASSERT_OK(Put(1, "0test", "test"));
-  iter->SeekToFirst();
-  ASSERT_TRUE(iter->Valid());
-  ASSERT_EQ(iter->key().ToString(), "0test");
-  ASSERT_OK(Delete(1, "0test"));
-
-  // write many more records
-  const int num_records = 10000;
-  std::string value(1024, 'A');
-
-  for (int i = 0; i < num_records; ++i) {
-    char buf[32];
-    snprintf(buf, sizeof(buf), "1%015d", i);
-
-    Slice key(buf, 16);
-    ASSERT_OK(Put(1, key, value));
-  }
-
-  // force a flush to make sure that no records are read from memtable
-  ASSERT_OK(Flush(1));
-
-  // skip "0test"
-  iter->Next();
-
-  // make sure we can read all new records using the existing iterator
-  int count = 0;
-  for (; iter->Valid(); iter->Next(), ++count) ;
-
-  ASSERT_EQ(count, num_records);
-}
-
-TEST_F(DBTestTailingIterator, TailingIteratorPrefixSeek) {
-  XFUNC_TEST("", "dbtest_prefix", prefix_skip1, XFuncPoint::SetSkip,
-             kSkipNoPrefix);
-  ReadOptions read_options;
-  read_options.tailing = true;
-
-  Options options = CurrentOptions();
-  options.env = env_;
-  options.create_if_missing = true;
-  options.disable_auto_compactions = true;
-  options.prefix_extractor.reset(NewFixedPrefixTransform(2));
-  options.memtable_factory.reset(NewHashSkipListRepFactory(16));
-  DestroyAndReopen(options);
-  CreateAndReopenWithCF({"pikachu"}, options);
-
-  std::unique_ptr<Iterator> iter(db_->NewIterator(read_options, handles_[1]));
-  ASSERT_OK(Put(1, "0101", "test"));
-
-  ASSERT_OK(Flush(1));
-
-  ASSERT_OK(Put(1, "0202", "test"));
-
-  // Seek(0102) shouldn't find any records since 0202 has a different prefix
-  iter->Seek("0102");
-  ASSERT_TRUE(!iter->Valid());
-
-  iter->Seek("0202");
-  ASSERT_TRUE(iter->Valid());
-  ASSERT_EQ(iter->key().ToString(), "0202");
-
-  iter->Next();
-  ASSERT_TRUE(!iter->Valid());
-  XFUNC_TEST("", "dbtest_prefix", prefix_skip1, XFuncPoint::SetSkip, 0);
-}
-
-TEST_F(DBTestTailingIterator, TailingIteratorIncomplete) {
-  CreateAndReopenWithCF({"pikachu"}, CurrentOptions());
-  ReadOptions read_options;
-  read_options.tailing = true;
-  read_options.read_tier = kBlockCacheTier;
-
-  std::string key("key");
-  std::string value("value");
-
-  ASSERT_OK(db_->Put(WriteOptions(), key, value));
-
-  std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
-  iter->SeekToFirst();
-  // we either see the entry or it's not in cache
-  ASSERT_TRUE(iter->Valid() || iter->status().IsIncomplete());
-
-  ASSERT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
-  iter->SeekToFirst();
-  // should still be true after compaction
-  ASSERT_TRUE(iter->Valid() || iter->status().IsIncomplete());
-}
-
-TEST_F(DBTestTailingIterator, TailingIteratorSeekToSame) {
-  Options options = CurrentOptions();
-  options.compaction_style = kCompactionStyleUniversal;
-  options.write_buffer_size = 1000;
-  CreateAndReopenWithCF({"pikachu"}, options);
-
-  ReadOptions read_options;
-  read_options.tailing = true;
-
-  const int NROWS = 10000;
-  // Write rows with keys 00000, 00002, 00004 etc.
-  for (int i = 0; i < NROWS; ++i) {
-    char buf[100];
-    snprintf(buf, sizeof(buf), "%05d", 2*i);
-    std::string key(buf);
-    std::string value("value");
-    ASSERT_OK(db_->Put(WriteOptions(), key, value));
-  }
-
-  std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
-  // Seek to 00001.  We expect to find 00002.
-  std::string start_key = "00001";
-  iter->Seek(start_key);
-  ASSERT_TRUE(iter->Valid());
-
-  std::string found = iter->key().ToString();
-  ASSERT_EQ("00002", found);
-
-  // Now seek to the same key.  The iterator should remain in the same
-  // position.
-  iter->Seek(found);
-  ASSERT_TRUE(iter->Valid());
-  ASSERT_EQ(found, iter->key().ToString());
-}
-
-// Sets iterate_upper_bound and verifies that ForwardIterator doesn't call
-// Seek() on immutable iterators when target key is >= prev_key and all
-// iterators, including the memtable iterator, are over the upper bound.
-TEST_F(DBTestTailingIterator, TailingIteratorUpperBound) {
-  CreateAndReopenWithCF({"pikachu"}, CurrentOptions());
-
-  const Slice upper_bound("20", 3);
-  ReadOptions read_options;
-  read_options.tailing = true;
-  read_options.iterate_upper_bound = &upper_bound;
-
-  ASSERT_OK(Put(1, "11", "11"));
-  ASSERT_OK(Put(1, "12", "12"));
-  ASSERT_OK(Put(1, "22", "22"));
-  ASSERT_OK(Flush(1));  // flush all those keys to an immutable SST file
-
-  // Add another key to the memtable.
-  ASSERT_OK(Put(1, "21", "21"));
-
-  std::unique_ptr<Iterator> it(db_->NewIterator(read_options, handles_[1]));
-  it->Seek("12");
-  ASSERT_TRUE(it->Valid());
-  ASSERT_EQ("12", it->key().ToString());
-
-  it->Next();
-  // Not valid since "21" is over the upper bound.
-  ASSERT_FALSE(it->Valid());
-
-  // This keeps track of the number of times NeedToSeekImmutable() was true.
-  int immutable_seeks = 0;
-  rocksdb::SyncPoint::GetInstance()->SetCallBack(
-      "ForwardIterator::SeekInternal:Immutable",
-      [&](void* arg) { ++immutable_seeks; });
-
-  // Seek to 13. This should not require any immutable seeks.
-  rocksdb::SyncPoint::GetInstance()->EnableProcessing();
-  it->Seek("13");
-  rocksdb::SyncPoint::GetInstance()->DisableProcessing();
-
-  ASSERT_FALSE(it->Valid());
-  ASSERT_EQ(0, immutable_seeks);
-}
-
-TEST_F(DBTestTailingIterator, ManagedTailingIteratorSingle) {
-  ReadOptions read_options;
-  read_options.tailing = true;
-  read_options.managed = true;
-
-  std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
-  iter->SeekToFirst();
-  ASSERT_TRUE(!iter->Valid());
-
-  // add a record and check that iter can see it
-  ASSERT_OK(db_->Put(WriteOptions(), "mirko", "fodor"));
-  iter->SeekToFirst();
-  ASSERT_TRUE(iter->Valid());
-  ASSERT_EQ(iter->key().ToString(), "mirko");
-
-  iter->Next();
-  ASSERT_TRUE(!iter->Valid());
-}
-
-TEST_F(DBTestTailingIterator, ManagedTailingIteratorKeepAdding) {
-  CreateAndReopenWithCF({"pikachu"}, CurrentOptions());
-  ReadOptions read_options;
-  read_options.tailing = true;
-  read_options.managed = true;
-
-  std::unique_ptr<Iterator> iter(db_->NewIterator(read_options, handles_[1]));
-  std::string value(1024, 'a');
-
-  const int num_records = 10000;
-  for (int i = 0; i < num_records; ++i) {
-    char buf[32];
-    snprintf(buf, sizeof(buf), "%016d", i);
-
-    Slice key(buf, 16);
-    ASSERT_OK(Put(1, key, value));
-
-    iter->Seek(key);
-    ASSERT_TRUE(iter->Valid());
-    ASSERT_EQ(iter->key().compare(key), 0);
-  }
-}
-
-TEST_F(DBTestTailingIterator, ManagedTailingIteratorSeekToNext) {
-  CreateAndReopenWithCF({"pikachu"}, CurrentOptions());
-  ReadOptions read_options;
-  read_options.tailing = true;
-  read_options.managed = true;
-
-  std::unique_ptr<Iterator> iter(db_->NewIterator(read_options, handles_[1]));
-  std::string value(1024, 'a');
-
-  const int num_records = 1000;
-  for (int i = 1; i < num_records; ++i) {
-    char buf1[32];
-    char buf2[32];
-    snprintf(buf1, sizeof(buf1), "00a0%016d", i * 5);
-
-    Slice key(buf1, 20);
-    ASSERT_OK(Put(1, key, value));
-
-    if (i % 100 == 99) {
-      ASSERT_OK(Flush(1));
-    }
-
-    snprintf(buf2, sizeof(buf2), "00a0%016d", i * 5 - 2);
-    Slice target(buf2, 20);
-    iter->Seek(target);
-    ASSERT_TRUE(iter->Valid());
-    ASSERT_EQ(iter->key().compare(key), 0);
-  }
-  for (int i = 2 * num_records; i > 0; --i) {
-    char buf1[32];
-    char buf2[32];
-    snprintf(buf1, sizeof(buf1), "00a0%016d", i * 5);
-
-    Slice key(buf1, 20);
-    ASSERT_OK(Put(1, key, value));
-
-    if (i % 100 == 99) {
-      ASSERT_OK(Flush(1));
-    }
-
-    snprintf(buf2, sizeof(buf2), "00a0%016d", i * 5 - 2);
-    Slice target(buf2, 20);
-    iter->Seek(target);
-    ASSERT_TRUE(iter->Valid());
-    ASSERT_EQ(iter->key().compare(key), 0);
-  }
-}
-
-TEST_F(DBTestTailingIterator, ManagedTailingIteratorDeletes) {
-  CreateAndReopenWithCF({"pikachu"}, CurrentOptions());
-  ReadOptions read_options;
-  read_options.tailing = true;
-  read_options.managed = true;
-
-  std::unique_ptr<Iterator> iter(db_->NewIterator(read_options, handles_[1]));
-
-  // write a single record, read it using the iterator, then delete it
-  ASSERT_OK(Put(1, "0test", "test"));
-  iter->SeekToFirst();
-  ASSERT_TRUE(iter->Valid());
-  ASSERT_EQ(iter->key().ToString(), "0test");
-  ASSERT_OK(Delete(1, "0test"));
-
-  // write many more records
-  const int num_records = 10000;
-  std::string value(1024, 'A');
-
-  for (int i = 0; i < num_records; ++i) {
-    char buf[32];
-    snprintf(buf, sizeof(buf), "1%015d", i);
-
-    Slice key(buf, 16);
-    ASSERT_OK(Put(1, key, value));
-  }
-
-  // force a flush to make sure that no records are read from memtable
-  ASSERT_OK(Flush(1));
-
-  // skip "0test"
-  iter->Next();
-
-  // make sure we can read all new records using the existing iterator
-  int count = 0;
-  for (; iter->Valid(); iter->Next(), ++count) {
-  }
-
-  ASSERT_EQ(count, num_records);
-}
-
-TEST_F(DBTestTailingIterator, ManagedTailingIteratorPrefixSeek) {
-  XFUNC_TEST("", "dbtest_prefix", prefix_skip1, XFuncPoint::SetSkip,
-             kSkipNoPrefix);
-  ReadOptions read_options;
-  read_options.tailing = true;
-  read_options.managed = true;
-
-  Options options = CurrentOptions();
-  options.env = env_;
-  options.create_if_missing = true;
-  options.disable_auto_compactions = true;
-  options.prefix_extractor.reset(NewFixedPrefixTransform(2));
-  options.memtable_factory.reset(NewHashSkipListRepFactory(16));
-  DestroyAndReopen(options);
-  CreateAndReopenWithCF({"pikachu"}, options);
-
-  std::unique_ptr<Iterator> iter(db_->NewIterator(read_options, handles_[1]));
-  ASSERT_OK(Put(1, "0101", "test"));
-
-  ASSERT_OK(Flush(1));
-
-  ASSERT_OK(Put(1, "0202", "test"));
-
-  // Seek(0102) shouldn't find any records since 0202 has a different prefix
-  iter->Seek("0102");
-  ASSERT_TRUE(!iter->Valid());
-
-  iter->Seek("0202");
-  ASSERT_TRUE(iter->Valid());
-  ASSERT_EQ(iter->key().ToString(), "0202");
-
-  iter->Next();
-  ASSERT_TRUE(!iter->Valid());
-  XFUNC_TEST("", "dbtest_prefix", prefix_skip1, XFuncPoint::SetSkip, 0);
-}
-
-TEST_F(DBTestTailingIterator, ManagedTailingIteratorIncomplete) {
-  CreateAndReopenWithCF({"pikachu"}, CurrentOptions());
-  ReadOptions read_options;
-  read_options.tailing = true;
-  read_options.managed = true;
-  read_options.read_tier = kBlockCacheTier;
-
-  std::string key = "key";
-  std::string value = "value";
-
-  ASSERT_OK(db_->Put(WriteOptions(), key, value));
-
-  std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
-  iter->SeekToFirst();
-  // we either see the entry or it's not in cache
-  ASSERT_TRUE(iter->Valid() || iter->status().IsIncomplete());
-
-  ASSERT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
-  iter->SeekToFirst();
-  // should still be true after compaction
-  ASSERT_TRUE(iter->Valid() || iter->status().IsIncomplete());
-}
-
-TEST_F(DBTestTailingIterator, ManagedTailingIteratorSeekToSame) {
-  Options options = CurrentOptions();
-  options.compaction_style = kCompactionStyleUniversal;
-  options.write_buffer_size = 1000;
-  CreateAndReopenWithCF({"pikachu"}, options);
-
-  ReadOptions read_options;
-  read_options.tailing = true;
-  read_options.managed = true;
-
-  const int NROWS = 10000;
-  // Write rows with keys 00000, 00002, 00004 etc.
-  for (int i = 0; i < NROWS; ++i) {
-    char buf[100];
-    snprintf(buf, sizeof(buf), "%05d", 2 * i);
-    std::string key(buf);
-    std::string value("value");
-    ASSERT_OK(db_->Put(WriteOptions(), key, value));
-  }
-
-  std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
-  // Seek to 00001.  We expect to find 00002.
-  std::string start_key = "00001";
-  iter->Seek(start_key);
-  ASSERT_TRUE(iter->Valid());
-
-  std::string found = iter->key().ToString();
-  ASSERT_EQ("00002", found);
-
-  // Now seek to the same key.  The iterator should remain in the same
-  // position.
-  iter->Seek(found);
-  ASSERT_TRUE(iter->Valid());
-  ASSERT_EQ(found, iter->key().ToString());
-}
-
-TEST_F(DBTestTailingIterator, ForwardIteratorVersionProperty) {
-  Options options = CurrentOptions();
-  options.write_buffer_size = 1000;
-
-  ReadOptions read_options;
-  read_options.tailing = true;
-
-  Put("foo", "bar");
-
-  uint64_t v1, v2, v3, v4;
-  {
-    std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
-    iter->Seek("foo");
-    std::string prop_value;
-    ASSERT_OK(iter->GetProperty("rocksdb.iterator.super-version-number",
-                                &prop_value));
-    v1 = static_cast<uint64_t>(std::atoi(prop_value.c_str()));
-
-    Put("foo1", "bar1");
-    Flush();
-
-    ASSERT_OK(iter->GetProperty("rocksdb.iterator.super-version-number",
-                                &prop_value));
-    v2 = static_cast<uint64_t>(std::atoi(prop_value.c_str()));
-
-    iter->Seek("f");
-
-    ASSERT_OK(iter->GetProperty("rocksdb.iterator.super-version-number",
-                                &prop_value));
-    v3 = static_cast<uint64_t>(std::atoi(prop_value.c_str()));
-
-    ASSERT_EQ(v1, v2);
-    ASSERT_GT(v3, v2);
-  }
-
-  {
-    std::unique_ptr<Iterator> iter(db_->NewIterator(read_options));
-    iter->Seek("foo");
-    std::string prop_value;
-    ASSERT_OK(iter->GetProperty("rocksdb.iterator.super-version-number",
-                                &prop_value));
-    v4 = static_cast<uint64_t>(std::atoi(prop_value.c_str()));
-  }
-  ASSERT_EQ(v3, v4);
-}
-}  // namespace rocksdb
-
-#endif  // !defined(ROCKSDB_LITE)
-
-int main(int argc, char** argv) {
-#if !defined(ROCKSDB_LITE)
-  rocksdb::port::InstallStackTraceHandler();
-  ::testing::InitGoogleTest(&argc, argv);
-  return RUN_ALL_TESTS();
-#else
-  return 0;
-#endif
-}

db/db_test2.cc

@@ -1,67 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under the BSD-style license found in the
-//  LICENSE file in the root directory of this source tree. An additional grant
-//  of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-#include <cstdlib>
-#include "db/db_test_util.h"
-#include "port/stack_trace.h"
-
-namespace rocksdb {
-
-class DBTest2 : public DBTestBase {
- public:
-  DBTest2() : DBTestBase("/db_test2") {}
-};
-
-TEST_F(DBTest2, IteratorPropertyVersionNumber) {
-  Put("", "");
-  Iterator* iter1 = db_->NewIterator(ReadOptions());
-  std::string prop_value;
-  ASSERT_OK(
-      iter1->GetProperty("rocksdb.iterator.super-version-number", &prop_value));
-  uint64_t version_number1 =
-      static_cast<uint64_t>(std::atoi(prop_value.c_str()));
-
-  Put("", "");
-  Flush();
-
-  Iterator* iter2 = db_->NewIterator(ReadOptions());
-  ASSERT_OK(
-      iter2->GetProperty("rocksdb.iterator.super-version-number", &prop_value));
-  uint64_t version_number2 =
-      static_cast<uint64_t>(std::atoi(prop_value.c_str()));
-
-  ASSERT_GT(version_number2, version_number1);
-
-  Put("", "");
-
-  Iterator* iter3 = db_->NewIterator(ReadOptions());
-  ASSERT_OK(
-      iter3->GetProperty("rocksdb.iterator.super-version-number", &prop_value));
-  uint64_t version_number3 =
-      static_cast<uint64_t>(std::atoi(prop_value.c_str()));
-
-  ASSERT_EQ(version_number2, version_number3);
-
-  iter1->SeekToFirst();
-  ASSERT_OK(
-      iter1->GetProperty("rocksdb.iterator.super-version-number", &prop_value));
-  uint64_t version_number1_new =
-      static_cast<uint64_t>(std::atoi(prop_value.c_str()));
-  ASSERT_EQ(version_number1, version_number1_new);
-
-  delete iter1;
-  delete iter2;
-  delete iter3;
-}
-}  // namespace rocksdb
-
-int main(int argc, char** argv) {
-  rocksdb::port::InstallStackTraceHandler();
-  ::testing::InitGoogleTest(&argc, argv);
-  return RUN_ALL_TESTS();
-}

db/db_test_util.h

@@ -1,761 +0,0 @@
-// Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#pragma once
-#ifndef __STDC_FORMAT_MACROS
-#define __STDC_FORMAT_MACROS
-#endif
-
-#include <fcntl.h>
-#include <inttypes.h>
-#ifndef OS_WIN
-#include <unistd.h>
-#endif
-
-#include <algorithm>
-#include <map>
-#include <set>
-#include <string>
-#include <thread>
-#include <unordered_set>
-#include <utility>
-#include <vector>
-
-#include "db/db_impl.h"
-#include "db/dbformat.h"
-#include "db/filename.h"
-#include "memtable/hash_linklist_rep.h"
-#include "rocksdb/cache.h"
-#include "rocksdb/compaction_filter.h"
-#include "rocksdb/convenience.h"
-#include "rocksdb/db.h"
-#include "rocksdb/env.h"
-#include "rocksdb/filter_policy.h"
-#include "rocksdb/options.h"
-#include "rocksdb/slice.h"
-#include "rocksdb/table.h"
-#include "rocksdb/utilities/checkpoint.h"
-#include "table/block_based_table_factory.h"
-#include "table/mock_table.h"
-#include "table/plain_table_factory.h"
-#include "table/scoped_arena_iterator.h"
-#include "util/compression.h"
-#include "util/mock_env.h"
-#include "util/mutexlock.h"
-
-#include "util/string_util.h"
-// SyncPoint is not supported in Released Windows Mode.
-#if !(defined NDEBUG) || !defined(OS_WIN)
-#include "util/sync_point.h"
-#endif  // !(defined NDEBUG) || !defined(OS_WIN)
-#include "util/testharness.h"
-#include "util/testutil.h"
-#include "util/xfunc.h"
-#include "utilities/merge_operators.h"
-
-namespace rocksdb {
-
-namespace anon {
-class AtomicCounter {
- public:
-  explicit AtomicCounter(Env* env = NULL)
-      : env_(env), cond_count_(&mu_), count_(0) {}
-
-  void Increment() {
-    MutexLock l(&mu_);
-    count_++;
-    cond_count_.SignalAll();
-  }
-
-  int Read() {
-    MutexLock l(&mu_);
-    return count_;
-  }
-
-  bool WaitFor(int count) {
-    MutexLock l(&mu_);
-
-    uint64_t start = env_->NowMicros();
-    while (count_ < count) {
-      uint64_t now = env_->NowMicros();
-      cond_count_.TimedWait(now + /*1s*/ 1 * 1000 * 1000);
-      if (env_->NowMicros() - start > /*10s*/ 10 * 1000 * 1000) {
-        return false;
-      }
-      if (count_ < count) {
-        GTEST_LOG_(WARNING) << "WaitFor is taking more time than usual";
-      }
-    }
-
-    return true;
-  }
-
-  void Reset() {
-    MutexLock l(&mu_);
-    count_ = 0;
-    cond_count_.SignalAll();
-  }
-
- private:
-  Env* env_;
-  port::Mutex mu_;
-  port::CondVar cond_count_;
-  int count_;
-};
-
-struct OptionsOverride {
-  std::shared_ptr<const FilterPolicy> filter_policy = nullptr;
-
-  // Used as a bit mask of individual enums in which to skip an XF test point
-  int skip_policy = 0;
-};
-
-}  // namespace anon
-
-// A hacky skip list mem table that triggers flush after number of entries.
-class SpecialMemTableRep : public MemTableRep {
- public:
-  explicit SpecialMemTableRep(MemTableAllocator* allocator,
-                              MemTableRep* memtable, int num_entries_flush)
-      : MemTableRep(allocator),
-        memtable_(memtable),
-        num_entries_flush_(num_entries_flush),
-        num_entries_(0) {}
-
-  virtual KeyHandle Allocate(const size_t len, char** buf) override {
-    return memtable_->Allocate(len, buf);
-  }
-
-  // Insert key into the list.
-  // REQUIRES: nothing that compares equal to key is currently in the list.
-  virtual void Insert(KeyHandle handle) override {
-    memtable_->Insert(handle);
-    num_entries_++;
-  }
-
-  // Returns true iff an entry that compares equal to key is in the list.
-  virtual bool Contains(const char* key) const override {
-    return memtable_->Contains(key);
-  }
-
-  virtual size_t ApproximateMemoryUsage() override {
-    // Return a high memory usage when number of entries exceeds the threshold
-    // to trigger a flush.
-    return (num_entries_ < num_entries_flush_) ? 0 : 1024 * 1024 * 1024;
-  }
-
-  virtual void Get(const LookupKey& k, void* callback_args,
-                   bool (*callback_func)(void* arg,
-                                         const char* entry)) override {
-    memtable_->Get(k, callback_args, callback_func);
-  }
-
-  uint64_t ApproximateNumEntries(const Slice& start_ikey,
-                                 const Slice& end_ikey) override {
-    return memtable_->ApproximateNumEntries(start_ikey, end_ikey);
-  }
-
-  virtual MemTableRep::Iterator* GetIterator(Arena* arena = nullptr) override {
-    return memtable_->GetIterator(arena);
-  }
-
-  virtual ~SpecialMemTableRep() override {}
-
- private:
-  unique_ptr<MemTableRep> memtable_;
-  int num_entries_flush_;
-  int num_entries_;
-};
-
-// The factory for the hacky skip list mem table that triggers flush after
-// number of entries exceeds a threshold.
-class SpecialSkipListFactory : public MemTableRepFactory {
- public:
-  // After number of inserts exceeds `num_entries_flush` in a mem table, trigger
-  // flush.
-  explicit SpecialSkipListFactory(int num_entries_flush)
-      : num_entries_flush_(num_entries_flush) {}
-
-  virtual MemTableRep* CreateMemTableRep(
-      const MemTableRep::KeyComparator& compare, MemTableAllocator* allocator,
-      const SliceTransform* transform, Logger* logger) override {
-    return new SpecialMemTableRep(
-        allocator, factory_.CreateMemTableRep(compare, allocator, transform, 0),
-        num_entries_flush_);
-  }
-  virtual const char* Name() const override { return "SkipListFactory"; }
-
- private:
-  SkipListFactory factory_;
-  int num_entries_flush_;
-};
-
-// Special Env used to delay background operations
-class SpecialEnv : public EnvWrapper {
- public:
-  explicit SpecialEnv(Env* base);
-
-  Status NewWritableFile(const std::string& f, unique_ptr<WritableFile>* r,
-                         const EnvOptions& soptions) override {
-    class SSTableFile : public WritableFile {
-     private:
-      SpecialEnv* env_;
-      unique_ptr<WritableFile> base_;
-
-     public:
-      SSTableFile(SpecialEnv* env, unique_ptr<WritableFile>&& base)
-          : env_(env), base_(std::move(base)) {}
-      Status Append(const Slice& data) override {
-        if (env_->table_write_callback_) {
-          (*env_->table_write_callback_)();
-        }
-        if (env_->drop_writes_.load(std::memory_order_acquire)) {
-          // Drop writes on the floor
-          return Status::OK();
-        } else if (env_->no_space_.load(std::memory_order_acquire)) {
-          return Status::IOError("No space left on device");
-        } else {
-          env_->bytes_written_ += data.size();
-          return base_->Append(data);
-        }
-      }
-      Status Truncate(uint64_t size) override { return base_->Truncate(size); }
-      Status Close() override {
-// SyncPoint is not supported in Released Windows Mode.
-#if !(defined NDEBUG) || !defined(OS_WIN)
-        // Check preallocation size
-        // preallocation size is never passed to base file.
-        size_t preallocation_size = preallocation_block_size();
-        TEST_SYNC_POINT_CALLBACK("DBTestWritableFile.GetPreallocationStatus",
-                                 &preallocation_size);
-#endif  // !(defined NDEBUG) || !defined(OS_WIN)
-        return base_->Close();
-      }
-      Status Flush() override { return base_->Flush(); }
-      Status Sync() override {
-        ++env_->sync_counter_;
-        while (env_->delay_sstable_sync_.load(std::memory_order_acquire)) {
-          env_->SleepForMicroseconds(100000);
-        }
-        return base_->Sync();
-      }
-      void SetIOPriority(Env::IOPriority pri) override {
-        base_->SetIOPriority(pri);
-      }
-      Env::IOPriority GetIOPriority() override {
-        return base_->GetIOPriority();
-      }
-    };
-    class ManifestFile : public WritableFile {
-     public:
-      ManifestFile(SpecialEnv* env, unique_ptr<WritableFile>&& b)
-          : env_(env), base_(std::move(b)) {}
-      Status Append(const Slice& data) override {
-        if (env_->manifest_write_error_.load(std::memory_order_acquire)) {
-          return Status::IOError("simulated writer error");
-        } else {
-          return base_->Append(data);
-        }
-      }
-      Status Truncate(uint64_t size) override { return base_->Truncate(size); }
-      Status Close() override { return base_->Close(); }
-      Status Flush() override { return base_->Flush(); }
-      Status Sync() override {
-        ++env_->sync_counter_;
-        if (env_->manifest_sync_error_.load(std::memory_order_acquire)) {
-          return Status::IOError("simulated sync error");
-        } else {
-          return base_->Sync();
-        }
-      }
-      uint64_t GetFileSize() override { return base_->GetFileSize(); }
-
-     private:
-      SpecialEnv* env_;
-      unique_ptr<WritableFile> base_;
-    };
-    class WalFile : public WritableFile {
-     public:
-      WalFile(SpecialEnv* env, unique_ptr<WritableFile>&& b)
-          : env_(env), base_(std::move(b)) {}
-      Status Append(const Slice& data) override {
-#if !(defined NDEBUG) || !defined(OS_WIN)
-        TEST_SYNC_POINT("SpecialEnv::WalFile::Append:1");
-#endif
-        Status s;
-        if (env_->log_write_error_.load(std::memory_order_acquire)) {
-          s = Status::IOError("simulated writer error");
-        } else {
-          int slowdown =
-              env_->log_write_slowdown_.load(std::memory_order_acquire);
-          if (slowdown > 0) {
-            env_->SleepForMicroseconds(slowdown);
-          }
-          s = base_->Append(data);
-        }
-#if !(defined NDEBUG) || !defined(OS_WIN)
-        TEST_SYNC_POINT("SpecialEnv::WalFile::Append:2");
-#endif
-        return s;
-      }
-      Status Truncate(uint64_t size) override { return base_->Truncate(size); }
-      Status Close() override { return base_->Close(); }
-      Status Flush() override { return base_->Flush(); }
-      Status Sync() override {
-        ++env_->sync_counter_;
-        return base_->Sync();
-      }
-      bool IsSyncThreadSafe() const override {
-        return env_->is_wal_sync_thread_safe_.load();
-      }
-
-     private:
-      SpecialEnv* env_;
-      unique_ptr<WritableFile> base_;
-    };
-
-    if (non_writeable_rate_.load(std::memory_order_acquire) > 0) {
-      uint32_t random_number;
-      {
-        MutexLock l(&rnd_mutex_);
-        random_number = rnd_.Uniform(100);
-      }
-      if (random_number < non_writeable_rate_.load()) {
-        return Status::IOError("simulated random write error");
-      }
-    }
-
-    new_writable_count_++;
-
-    if (non_writable_count_.load() > 0) {
-      non_writable_count_--;
-      return Status::IOError("simulated write error");
-    }
-
-    Status s = target()->NewWritableFile(f, r, soptions);
-    if (s.ok()) {
-      if (strstr(f.c_str(), ".sst") != nullptr) {
-        r->reset(new SSTableFile(this, std::move(*r)));
-      } else if (strstr(f.c_str(), "MANIFEST") != nullptr) {
-        r->reset(new ManifestFile(this, std::move(*r)));
-      } else if (strstr(f.c_str(), "log") != nullptr) {
-        r->reset(new WalFile(this, std::move(*r)));
-      }
-    }
-    return s;
-  }
-
-  Status NewRandomAccessFile(const std::string& f,
-                             unique_ptr<RandomAccessFile>* r,
-                             const EnvOptions& soptions) override {
-    class CountingFile : public RandomAccessFile {
-     public:
-      CountingFile(unique_ptr<RandomAccessFile>&& target,
-                   anon::AtomicCounter* counter)
-          : target_(std::move(target)), counter_(counter) {}
-      virtual Status Read(uint64_t offset, size_t n, Slice* result,
-                          char* scratch) const override {
-        counter_->Increment();
-        return target_->Read(offset, n, result, scratch);
-      }
-
-     private:
-      unique_ptr<RandomAccessFile> target_;
-      anon::AtomicCounter* counter_;
-    };
-
-    Status s = target()->NewRandomAccessFile(f, r, soptions);
-    random_file_open_counter_++;
-    if (s.ok() && count_random_reads_) {
-      r->reset(new CountingFile(std::move(*r), &random_read_counter_));
-    }
-    return s;
-  }
-
-  Status NewSequentialFile(const std::string& f, unique_ptr<SequentialFile>* r,
-                           const EnvOptions& soptions) override {
-    class CountingFile : public SequentialFile {
-     public:
-      CountingFile(unique_ptr<SequentialFile>&& target,
-                   anon::AtomicCounter* counter)
-          : target_(std::move(target)), counter_(counter) {}
-      virtual Status Read(size_t n, Slice* result, char* scratch) override {
-        counter_->Increment();
-        return target_->Read(n, result, scratch);
-      }
-      virtual Status Skip(uint64_t n) override { return target_->Skip(n); }
-
-     private:
-      unique_ptr<SequentialFile> target_;
-      anon::AtomicCounter* counter_;
-    };
-
-    Status s = target()->NewSequentialFile(f, r, soptions);
-    if (s.ok() && count_sequential_reads_) {
-      r->reset(new CountingFile(std::move(*r), &sequential_read_counter_));
-    }
-    return s;
-  }
-
-  virtual void SleepForMicroseconds(int micros) override {
-    sleep_counter_.Increment();
-    if (no_sleep_ || time_elapse_only_sleep_) {
-      addon_time_.fetch_add(micros);
-    }
-    if (!no_sleep_) {
-      target()->SleepForMicroseconds(micros);
-    }
-  }
-
-  virtual Status GetCurrentTime(int64_t* unix_time) override {
-    Status s;
-    if (!time_elapse_only_sleep_) {
-      s = target()->GetCurrentTime(unix_time);
-    }
-    if (s.ok()) {
-      *unix_time += addon_time_.load();
-    }
-    return s;
-  }
-
-  virtual uint64_t NowNanos() override {
-    return (time_elapse_only_sleep_ ? 0 : target()->NowNanos()) +
-           addon_time_.load() * 1000;
-  }
-
-  virtual uint64_t NowMicros() override {
-    return (time_elapse_only_sleep_ ? 0 : target()->NowMicros()) +
-           addon_time_.load();
-  }
-
-  Random rnd_;
-  port::Mutex rnd_mutex_;  // Lock to pretect rnd_
-
-  // sstable Sync() calls are blocked while this pointer is non-nullptr.
-  std::atomic<bool> delay_sstable_sync_;
-
-  // Drop writes on the floor while this pointer is non-nullptr.
-  std::atomic<bool> drop_writes_;
-
-  // Simulate no-space errors while this pointer is non-nullptr.
-  std::atomic<bool> no_space_;
-
-  // Simulate non-writable file system while this pointer is non-nullptr
-  std::atomic<bool> non_writable_;
-
-  // Force sync of manifest files to fail while this pointer is non-nullptr
-  std::atomic<bool> manifest_sync_error_;
-
-  // Force write to manifest files to fail while this pointer is non-nullptr
-  std::atomic<bool> manifest_write_error_;
-
-  // Force write to log files to fail while this pointer is non-nullptr
-  std::atomic<bool> log_write_error_;
-
-  // Slow down every log write, in micro-seconds.
-  std::atomic<int> log_write_slowdown_;
-
-  bool count_random_reads_;
-  anon::AtomicCounter random_read_counter_;
-  std::atomic<int> random_file_open_counter_;
-
-  bool count_sequential_reads_;
-  anon::AtomicCounter sequential_read_counter_;
-
-  anon::AtomicCounter sleep_counter_;
-
-  std::atomic<int64_t> bytes_written_;
-
-  std::atomic<int> sync_counter_;
-
-  std::atomic<uint32_t> non_writeable_rate_;
-
-  std::atomic<uint32_t> new_writable_count_;
-
-  std::atomic<uint32_t> non_writable_count_;
-
-  std::function<void()>* table_write_callback_;
-
-  std::atomic<int64_t> addon_time_;
-
-  bool time_elapse_only_sleep_;
-
-  bool no_sleep_;
-
-  std::atomic<bool> is_wal_sync_thread_safe_{true};
-};
-
-class DBTestBase : public testing::Test {
- protected:
-  // Sequence of option configurations to try
-  enum OptionConfig {
-    kDefault = 0,
-    kBlockBasedTableWithPrefixHashIndex = 1,
-    kBlockBasedTableWithWholeKeyHashIndex = 2,
-    kPlainTableFirstBytePrefix = 3,
-    kPlainTableCappedPrefix = 4,
-    kPlainTableCappedPrefixNonMmap = 5,
-    kPlainTableAllBytesPrefix = 6,
-    kVectorRep = 7,
-    kHashLinkList = 8,
-    kHashCuckoo = 9,
-    kMergePut = 10,
-    kFilter = 11,
-    kFullFilterWithNewTableReaderForCompactions = 12,
-    kUncompressed = 13,
-    kNumLevel_3 = 14,
-    kDBLogDir = 15,
-    kWalDirAndMmapReads = 16,
-    kManifestFileSize = 17,
-    kPerfOptions = 18,
-    kDeletesFilterFirst = 19,
-    kHashSkipList = 20,
-    kUniversalCompaction = 21,
-    kUniversalCompactionMultiLevel = 22,
-    kCompressedBlockCache = 23,
-    kInfiniteMaxOpenFiles = 24,
-    kxxHashChecksum = 25,
-    kFIFOCompaction = 26,
-    kOptimizeFiltersForHits = 27,
-    kRowCache = 28,
-    kRecycleLogFiles = 29,
-    kConcurrentSkipList = 30,
-    kEnd = 31,
-    kLevelSubcompactions = 31,
-    kUniversalSubcompactions = 32,
-    kBlockBasedTableWithIndexRestartInterval = 33,
-  };
-  int option_config_;
-
- public:
-  std::string dbname_;
-  std::string alternative_wal_dir_;
-  std::string alternative_db_log_dir_;
-  MockEnv* mem_env_;
-  SpecialEnv* env_;
-  DB* db_;
-  std::vector<ColumnFamilyHandle*> handles_;
-
-  Options last_options_;
-
-  // Skip some options, as they may not be applicable to a specific test.
-  // To add more skip constants, use values 4, 8, 16, etc.
-  enum OptionSkip {
-    kNoSkip = 0,
-    kSkipDeletesFilterFirst = 1,
-    kSkipUniversalCompaction = 2,
-    kSkipMergePut = 4,
-    kSkipPlainTable = 8,
-    kSkipHashIndex = 16,
-    kSkipNoSeekToLast = 32,
-    kSkipHashCuckoo = 64,
-    kSkipFIFOCompaction = 128,
-    kSkipMmapReads = 256,
-  };
-
-  explicit DBTestBase(const std::string path);
-
-  ~DBTestBase();
-
-  static std::string RandomString(Random* rnd, int len) {
-    std::string r;
-    test::RandomString(rnd, len, &r);
-    return r;
-  }
-
-  static std::string Key(int i) {
-    char buf[100];
-    snprintf(buf, sizeof(buf), "key%06d", i);
-    return std::string(buf);
-  }
-
-  static bool ShouldSkipOptions(int option_config, int skip_mask = kNoSkip);
-
-  // Switch to a fresh database with the next option configuration to
-  // test.  Return false if there are no more configurations to test.
-  bool ChangeOptions(int skip_mask = kNoSkip);
-
-  // Switch between different compaction styles (we have only 2 now).
-  bool ChangeCompactOptions();
-
-  // Switch between different filter policy
-  // Jump from kDefault to kFilter to kFullFilter
-  bool ChangeFilterOptions();
-
-  // Return the current option configuration.
-  Options CurrentOptions(
-      const anon::OptionsOverride& options_override = anon::OptionsOverride());
-
-  Options CurrentOptions(
-      const Options& defaultOptions,
-      const anon::OptionsOverride& options_override = anon::OptionsOverride());
-
-  DBImpl* dbfull() { return reinterpret_cast<DBImpl*>(db_); }
-
-  void CreateColumnFamilies(const std::vector<std::string>& cfs,
-                            const Options& options);
-
-  void CreateAndReopenWithCF(const std::vector<std::string>& cfs,
-                             const Options& options);
-
-  void ReopenWithColumnFamilies(const std::vector<std::string>& cfs,
-                                const std::vector<Options>& options);
-
-  void ReopenWithColumnFamilies(const std::vector<std::string>& cfs,
-                                const Options& options);
-
-  Status TryReopenWithColumnFamilies(const std::vector<std::string>& cfs,
-                                     const std::vector<Options>& options);
-
-  Status TryReopenWithColumnFamilies(const std::vector<std::string>& cfs,
-                                     const Options& options);
-
-  void Reopen(const Options& options);
-
-  void Close();
-
-  void DestroyAndReopen(const Options& options);
-
-  void Destroy(const Options& options);
-
-  Status ReadOnlyReopen(const Options& options);
-
-  Status TryReopen(const Options& options);
-
-  Status Flush(int cf = 0);
-
-  Status Put(const Slice& k, const Slice& v, WriteOptions wo = WriteOptions());
-
-  Status Put(int cf, const Slice& k, const Slice& v,
-             WriteOptions wo = WriteOptions());
-
-  Status Delete(const std::string& k);
-
-  Status Delete(int cf, const std::string& k);
-
-  Status SingleDelete(const std::string& k);
-
-  Status SingleDelete(int cf, const std::string& k);
-
-  std::string Get(const std::string& k, const Snapshot* snapshot = nullptr);
-
-  std::string Get(int cf, const std::string& k,
-                  const Snapshot* snapshot = nullptr);
-
-  uint64_t GetNumSnapshots();
-
-  uint64_t GetTimeOldestSnapshots();
-
-  // Return a string that contains all key,value pairs in order,
-  // formatted like "(k1->v1)(k2->v2)".
-  std::string Contents(int cf = 0);
-
-  std::string AllEntriesFor(const Slice& user_key, int cf = 0);
-
-#ifndef ROCKSDB_LITE
-  int NumSortedRuns(int cf = 0);
-
-  uint64_t TotalSize(int cf = 0);
-
-  uint64_t SizeAtLevel(int level);
-
-  size_t TotalLiveFiles(int cf = 0);
-
-  size_t CountLiveFiles();
-#endif  // ROCKSDB_LITE
-
-  int NumTableFilesAtLevel(int level, int cf = 0);
-
-  int TotalTableFiles(int cf = 0, int levels = -1);
-
-  // Return spread of files per level
-  std::string FilesPerLevel(int cf = 0);
-
-  size_t CountFiles();
-
-  uint64_t Size(const Slice& start, const Slice& limit, int cf = 0);
-
-  void Compact(int cf, const Slice& start, const Slice& limit,
-               uint32_t target_path_id);
-
-  void Compact(int cf, const Slice& start, const Slice& limit);
-
-  void Compact(const Slice& start, const Slice& limit);
-
-  // Do n memtable compactions, each of which produces an sstable
-  // covering the range [small,large].
-  void MakeTables(int n, const std::string& small, const std::string& large,
-                  int cf = 0);
-
-  // Prevent pushing of new sstables into deeper levels by adding
-  // tables that cover a specified range to all levels.
-  void FillLevels(const std::string& smallest, const std::string& largest,
-                  int cf);
-
-  void MoveFilesToLevel(int level, int cf = 0);
-
-  void DumpFileCounts(const char* label);
-
-  std::string DumpSSTableList();
-
-  void GetSstFiles(std::string path, std::vector<std::string>* files);
-
-  int GetSstFileCount(std::string path);
-
-  // this will generate non-overlapping files since it keeps increasing key_idx
-  void GenerateNewFile(Random* rnd, int* key_idx, bool nowait = false);
-
-  void GenerateNewFile(int fd, Random* rnd, int* key_idx, bool nowait = false);
-
-  static const int kNumKeysByGenerateNewRandomFile;
-  static const int KNumKeysByGenerateNewFile = 100;
-
-  void GenerateNewRandomFile(Random* rnd, bool nowait = false);
-
-  std::string IterStatus(Iterator* iter);
-
-  Options OptionsForLogIterTest();
-
-  std::string DummyString(size_t len, char c = 'a');
-
-  void VerifyIterLast(std::string expected_key, int cf = 0);
-
-  // Used to test InplaceUpdate
-
-  // If previous value is nullptr or delta is > than previous value,
-  //   sets newValue with delta
-  // If previous value is not empty,
-  //   updates previous value with 'b' string of previous value size - 1.
-  static UpdateStatus updateInPlaceSmallerSize(char* prevValue,
-                                               uint32_t* prevSize, Slice delta,
-                                               std::string* newValue);
-
-  static UpdateStatus updateInPlaceSmallerVarintSize(char* prevValue,
-                                                     uint32_t* prevSize,
-                                                     Slice delta,
-                                                     std::string* newValue);
-
-  static UpdateStatus updateInPlaceLargerSize(char* prevValue,
-                                              uint32_t* prevSize, Slice delta,
-                                              std::string* newValue);
-
-  static UpdateStatus updateInPlaceNoAction(char* prevValue, uint32_t* prevSize,
-                                            Slice delta, std::string* newValue);
-
-  // Utility method to test InplaceUpdate
-  void validateNumberOfEntries(int numValues, int cf = 0);
-
-  void CopyFile(const std::string& source, const std::string& destination,
-                uint64_t size = 0);
-
-  std::unordered_map<std::string, uint64_t> GetAllSSTFiles(
-      uint64_t* total_size = nullptr);
-};
-
-}  // namespace rocksdb

db/db_wal_test.cc

@@ -1,136 +0,0 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
-//  This source code is licensed under the BSD-style license found in the
-//  LICENSE file in the root directory of this source tree. An additional grant
-//  of patent rights can be found in the PATENTS file in the same directory.
-//
-// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-
-#include "db/db_test_util.h"
-#include "port/stack_trace.h"
-#include "util/sync_point.h"
-
-namespace rocksdb {
-class DBWALTest : public DBTestBase {
- public:
-  DBWALTest() : DBTestBase("/db_wal_test") {}
-};
-
-TEST_F(DBWALTest, WAL) {
-  do {
-    CreateAndReopenWithCF({"pikachu"}, CurrentOptions());
-    WriteOptions writeOpt = WriteOptions();
-    writeOpt.disableWAL = true;
-    ASSERT_OK(dbfull()->Put(writeOpt, handles_[1], "foo", "v1"));
-    ASSERT_OK(dbfull()->Put(writeOpt, handles_[1], "bar", "v1"));
-
-    ReopenWithColumnFamilies({"default", "pikachu"}, CurrentOptions());
-    ASSERT_EQ("v1", Get(1, "foo"));
-    ASSERT_EQ("v1", Get(1, "bar"));
-
-    writeOpt.disableWAL = false;
-    ASSERT_OK(dbfull()->Put(writeOpt, handles_[1], "bar", "v2"));
-    writeOpt.disableWAL = true;
-    ASSERT_OK(dbfull()->Put(writeOpt, handles_[1], "foo", "v2"));
-
-    ReopenWithColumnFamilies({"default", "pikachu"}, CurrentOptions());
-    // Both value's should be present.
-    ASSERT_EQ("v2", Get(1, "bar"));
-    ASSERT_EQ("v2", Get(1, "foo"));
-
-    writeOpt.disableWAL = true;
-    ASSERT_OK(dbfull()->Put(writeOpt, handles_[1], "bar", "v3"));
-    writeOpt.disableWAL = false;
-    ASSERT_OK(dbfull()->Put(writeOpt, handles_[1], "foo", "v3"));
-
-    ReopenWithColumnFamilies({"default", "pikachu"}, CurrentOptions());
-    // again both values should be present.
-    ASSERT_EQ("v3", Get(1, "foo"));
-    ASSERT_EQ("v3", Get(1, "bar"));
-  } while (ChangeCompactOptions());
-}
-
-TEST_F(DBWALTest, RollLog) {
-  do {
-    CreateAndReopenWithCF({"pikachu"}, CurrentOptions());
-    ASSERT_OK(Put(1, "foo", "v1"));
-    ASSERT_OK(Put(1, "baz", "v5"));
-
-    ReopenWithColumnFamilies({"default", "pikachu"}, CurrentOptions());
-    for (int i = 0; i < 10; i++) {
-      ReopenWithColumnFamilies({"default", "pikachu"}, CurrentOptions());
-    }
-    ASSERT_OK(Put(1, "foo", "v4"));
-    for (int i = 0; i < 10; i++) {
-      ReopenWithColumnFamilies({"default", "pikachu"}, CurrentOptions());
-    }
-  } while (ChangeOptions());
-}
-
-TEST_F(DBWALTest, SyncWALNotBlockWrite) {
-  Options options = CurrentOptions();
-  options.max_write_buffer_number = 4;
-  DestroyAndReopen(options);
-
-  ASSERT_OK(Put("foo1", "bar1"));
-  ASSERT_OK(Put("foo5", "bar5"));
-
-  rocksdb::SyncPoint::GetInstance()->LoadDependency({
-      {"WritableFileWriter::SyncWithoutFlush:1",
-       "DBWALTest::SyncWALNotBlockWrite:1"},
-      {"DBWALTest::SyncWALNotBlockWrite:2",
-       "WritableFileWriter::SyncWithoutFlush:2"},
-  });
-  rocksdb::SyncPoint::GetInstance()->EnableProcessing();
-
-  std::thread thread([&]() { ASSERT_OK(db_->SyncWAL()); });
-
-  TEST_SYNC_POINT("DBWALTest::SyncWALNotBlockWrite:1");
-  ASSERT_OK(Put("foo2", "bar2"));
-  ASSERT_OK(Put("foo3", "bar3"));
-  FlushOptions fo;
-  fo.wait = false;
-  ASSERT_OK(db_->Flush(fo));
-  ASSERT_OK(Put("foo4", "bar4"));
-
-  TEST_SYNC_POINT("DBWALTest::SyncWALNotBlockWrite:2");
-
-  thread.join();
-
-  ASSERT_EQ(Get("foo1"), "bar1");
-  ASSERT_EQ(Get("foo2"), "bar2");
-  ASSERT_EQ(Get("foo3"), "bar3");
-  ASSERT_EQ(Get("foo4"), "bar4");
-  ASSERT_EQ(Get("foo5"), "bar5");
-  rocksdb::SyncPoint::GetInstance()->DisableProcessing();
-}
-
-TEST_F(DBWALTest, SyncWALNotWaitWrite) {
-  ASSERT_OK(Put("foo1", "bar1"));
-  ASSERT_OK(Put("foo3", "bar3"));
-
-  rocksdb::SyncPoint::GetInstance()->LoadDependency({
-      {"SpecialEnv::WalFile::Append:1", "DBWALTest::SyncWALNotWaitWrite:1"},
-      {"DBWALTest::SyncWALNotWaitWrite:2", "SpecialEnv::WalFile::Append:2"},
-  });
-  rocksdb::SyncPoint::GetInstance()->EnableProcessing();
-
-  std::thread thread([&]() { ASSERT_OK(Put("foo2", "bar2")); });
-  TEST_SYNC_POINT("DBWALTest::SyncWALNotWaitWrite:1");
-  ASSERT_OK(db_->SyncWAL());
-  TEST_SYNC_POINT("DBWALTest::SyncWALNotWaitWrite:2");
-
-  thread.join();
-
-  ASSERT_EQ(Get("foo1"), "bar1");
-  ASSERT_EQ(Get("foo2"), "bar2");
-  rocksdb::SyncPoint::GetInstance()->DisableProcessing();
-}
-}  // namespace rocksdb
-
-int main(int argc, char** argv) {
-  rocksdb::port::InstallStackTraceHandler();
-  ::testing::InitGoogleTest(&argc, argv);
-  return RUN_ALL_TESTS();
-}

db/dbformat.cc

@@ -1,4 +1,4 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+//  Copyright (c) 2013, Facebook, Inc.  All rights reserved.
 //  This source code is licensed under the BSD-style license found in the
 //  LICENSE file in the root directory of this source tree. An additional grant
 //  of patent rights can be found in the PATENTS file in the same directory.
@@ -8,11 +8,6 @@
 // found in the LICENSE file. See the AUTHORS file for names of contributors.
 #include "db/dbformat.h"
 
-#ifndef __STDC_FORMAT_MACROS
-#define __STDC_FORMAT_MACROS
-#endif
-
-#include <inttypes.h>
 #include <stdio.h>
 #include "port/port.h"
 #include "util/coding.h"
@@ -22,18 +17,10 @@ namespace rocksdb {
 
 uint64_t PackSequenceAndType(uint64_t seq, ValueType t) {
   assert(seq <= kMaxSequenceNumber);
-  assert(IsValueType(t));
+  assert(t <= kValueTypeForSeek);
   return (seq << 8) | t;
 }
 
-void UnPackSequenceAndType(uint64_t packed, uint64_t* seq, ValueType* t) {
-  *seq = packed >> 8;
-  *t = static_cast<ValueType>(packed & 0xff);
-
-  assert(*seq <= kMaxSequenceNumber);
-  assert(IsValueType(*t));
-}
-
 void AppendInternalKey(std::string* result, const ParsedInternalKey& key) {
   result->append(key.user_key.data(), key.user_key.size());
   PutFixed64(result, PackSequenceAndType(key.sequence, key.type));
@@ -41,8 +28,9 @@ void AppendInternalKey(std::string* result, const ParsedInternalKey& key) {
 
 std::string ParsedInternalKey::DebugString(bool hex) const {
   char buf[50];
-  snprintf(buf, sizeof(buf), "' @ %" PRIu64 ": %d", sequence,
-           static_cast<int>(type));
+  snprintf(buf, sizeof(buf), "' @ %llu : %d",
+           (unsigned long long) sequence,
+           int(type));
   std::string result = "'";
   result += user_key.ToString(hex);
   result += buf;
@@ -139,8 +127,8 @@ void InternalKeyComparator::FindShortSuccessor(std::string* key) const {
   }
 }
 
-LookupKey::LookupKey(const Slice& _user_key, SequenceNumber s) {
-  size_t usize = _user_key.size();
+LookupKey::LookupKey(const Slice& user_key, SequenceNumber s) {
+  size_t usize = user_key.size();
   size_t needed = usize + 13;  // A conservative estimate
   char* dst;
   if (needed <= sizeof(space_)) {
@@ -149,10 +137,9 @@ LookupKey::LookupKey(const Slice& _user_key, SequenceNumber s) {
     dst = new char[needed];
   }
   start_ = dst;
-  // NOTE: We don't support users keys of more than 2GB :)
-  dst = EncodeVarint32(dst, static_cast<uint32_t>(usize + 8));
+  dst = EncodeVarint32(dst, usize + 8);
   kstart_ = dst;
-  memcpy(dst, _user_key.data(), usize);
+  memcpy(dst, user_key.data(), usize);
   dst += usize;
   EncodeFixed64(dst, PackSequenceAndType(s, kValueTypeForSeek));
   dst += 8;

db/dbformat.h

@@ -1,4 +1,4 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+//  Copyright (c) 2013, Facebook, Inc.  All rights reserved.
 //  This source code is licensed under the BSD-style license found in the
 //  LICENSE file in the root directory of this source tree. An additional grant
 //  of patent rights can be found in the PATENTS file in the same directory.
@@ -33,13 +33,13 @@ enum ValueType : unsigned char {
   kTypeDeletion = 0x0,
   kTypeValue = 0x1,
   kTypeMerge = 0x2,
-  kTypeLogData = 0x3,               // WAL only.
-  kTypeColumnFamilyDeletion = 0x4,  // WAL only.
-  kTypeColumnFamilyValue = 0x5,     // WAL only.
-  kTypeColumnFamilyMerge = 0x6,     // WAL only.
-  kTypeSingleDeletion = 0x7,
-  kTypeColumnFamilySingleDeletion = 0x8,  // WAL only.
-  kMaxValue = 0x7F                        // Not used for storing records.
+  // Following types are used only in write ahead logs. They are not used in
+  // memtables or sst files:
+  kTypeLogData = 0x3,
+  kTypeColumnFamilyDeletion = 0x4,
+  kTypeColumnFamilyValue = 0x5,
+  kTypeColumnFamilyMerge = 0x6,
+  kMaxValue = 0x7F
 };
 
 // kValueTypeForSeek defines the ValueType that should be passed when
@@ -48,13 +48,7 @@ enum ValueType : unsigned char {
 // and the value type is embedded as the low 8 bits in the sequence
 // number in internal keys, we need to use the highest-numbered
 // ValueType, not the lowest).
-static const ValueType kValueTypeForSeek = kTypeSingleDeletion;
-
-// Checks whether a type is a value type (i.e. a type used in memtables and sst
-// files).
-inline bool IsValueType(ValueType t) {
-  return t <= kTypeMerge || t == kTypeSingleDeletion;
-}
+static const ValueType kValueTypeForSeek = kTypeMerge;
 
 // We leave eight bits empty at the bottom so a type and sequence#
 // can be packed together into 64-bits.
@@ -77,13 +71,8 @@ inline size_t InternalKeyEncodingLength(const ParsedInternalKey& key) {
   return key.user_key.size() + 8;
 }
 
-// Pack a sequence number and a ValueType into a uint64_t
 extern uint64_t PackSequenceAndType(uint64_t seq, ValueType t);
 
-// Given the result of PackSequenceAndType, store the sequence number in *seq
-// and the ValueType in *t.
-extern void UnPackSequenceAndType(uint64_t packed, uint64_t* seq, ValueType* t);
-
 // Append the serialization of "key" to *result.
 extern void AppendInternalKey(std::string* result,
                               const ParsedInternalKey& key);
@@ -122,11 +111,12 @@ class InternalKeyComparator : public Comparator {
   }
   virtual ~InternalKeyComparator() {}
 
-  virtual const char* Name() const override;
-  virtual int Compare(const Slice& a, const Slice& b) const override;
-  virtual void FindShortestSeparator(std::string* start,
-                                     const Slice& limit) const override;
-  virtual void FindShortSuccessor(std::string* key) const override;
+  virtual const char* Name() const;
+  virtual int Compare(const Slice& a, const Slice& b) const;
+  virtual void FindShortestSeparator(
+      std::string* start,
+      const Slice& limit) const;
+  virtual void FindShortSuccessor(std::string* key) const;
 
   const Comparator* user_comparator() const { return user_comparator_; }
 
@@ -142,22 +132,8 @@ class InternalKey {
   std::string rep_;
  public:
   InternalKey() { }   // Leave rep_ as empty to indicate it is invalid
-  InternalKey(const Slice& _user_key, SequenceNumber s, ValueType t) {
-    AppendInternalKey(&rep_, ParsedInternalKey(_user_key, s, t));
-  }
-
-  // sets the internal key to be bigger or equal to all internal keys with this
-  // user key
-  void SetMaxPossibleForUserKey(const Slice& _user_key) {
-    AppendInternalKey(&rep_, ParsedInternalKey(_user_key, kMaxSequenceNumber,
-                                               kValueTypeForSeek));
-  }
-
-  // sets the internal key to be smaller or equal to all internal keys with this
-  // user key
-  void SetMinPossibleForUserKey(const Slice& _user_key) {
-    AppendInternalKey(
-        &rep_, ParsedInternalKey(_user_key, 0, static_cast<ValueType>(0)));
+  InternalKey(const Slice& user_key, SequenceNumber s, ValueType t) {
+    AppendInternalKey(&rep_, ParsedInternalKey(user_key, s, t));
   }
 
   bool Valid() const {
@@ -172,7 +148,6 @@ class InternalKey {
   }
 
   Slice user_key() const { return ExtractUserKey(rep_); }
-  size_t size() { return rep_.size(); }
 
   void SetFrom(const ParsedInternalKey& p) {
     rep_.clear();
@@ -199,19 +174,17 @@ inline bool ParseInternalKey(const Slice& internal_key,
   result->type = static_cast<ValueType>(c);
   assert(result->type <= ValueType::kMaxValue);
   result->user_key = Slice(internal_key.data(), n - 8);
-  return IsValueType(result->type);
+  return (c <= static_cast<unsigned char>(kValueTypeForSeek));
 }
 
-// Update the sequence number in the internal key.
-// Guarantees not to invalidate ikey.data().
-inline void UpdateInternalKey(std::string* ikey, uint64_t seq, ValueType t) {
-  size_t ikey_sz = ikey->size();
-  assert(ikey_sz >= 8);
+// Update the sequence number in the internal key
+inline void UpdateInternalKey(char* internal_key,
+                              const size_t internal_key_size,
+                              uint64_t seq, ValueType t) {
+  assert(internal_key_size >= 8);
+  char* seqtype = internal_key + internal_key_size - 8;
   uint64_t newval = (seq << 8) | t;
-
-  // Note: Since C++11, strings are guaranteed to be stored contiguously and
-  // string::operator[]() is guaranteed not to change ikey.data().
-  EncodeFixed64(&(*ikey)[ikey_sz - 8], newval);
+  EncodeFixed64(seqtype, newval);
 }
 
 // Get the sequence number from the internal key
@@ -228,24 +201,18 @@ class LookupKey {
  public:
   // Initialize *this for looking up user_key at a snapshot with
   // the specified sequence number.
-  LookupKey(const Slice& _user_key, SequenceNumber sequence);
+  LookupKey(const Slice& user_key, SequenceNumber sequence);
 
   ~LookupKey();
 
   // Return a key suitable for lookup in a MemTable.
-  Slice memtable_key() const {
-    return Slice(start_, static_cast<size_t>(end_ - start_));
-  }
+  Slice memtable_key() const { return Slice(start_, end_ - start_); }
 
   // Return an internal key (suitable for passing to an internal iterator)
-  Slice internal_key() const {
-    return Slice(kstart_, static_cast<size_t>(end_ - kstart_));
-  }
+  Slice internal_key() const { return Slice(kstart_, end_ - kstart_); }
 
   // Return the user key
-  Slice user_key() const {
-    return Slice(kstart_, static_cast<size_t>(end_ - kstart_ - 8));
-  }
+  Slice user_key() const { return Slice(kstart_, end_ - kstart_ - 8); }
 
  private:
   // We construct a char array of the form:
@@ -271,19 +238,13 @@ inline LookupKey::~LookupKey() {
 
 class IterKey {
  public:
-  IterKey()
-      : buf_(space_), buf_size_(sizeof(space_)), key_(buf_), key_size_(0) {}
+  IterKey() : key_(space_), buf_size_(sizeof(space_)), key_size_(0) {}
 
   ~IterKey() { ResetBuffer(); }
 
   Slice GetKey() const { return Slice(key_, key_size_); }
 
-  Slice GetUserKey() const {
-    assert(key_size_ >= 8);
-    return Slice(key_, key_size_ - 8);
-  }
-
-  size_t Size() const { return key_size_; }
+  size_t Size() { return key_size_; }
 
   void Clear() { key_size_ = 0; }
 
@@ -294,66 +255,34 @@ class IterKey {
   void TrimAppend(const size_t shared_len, const char* non_shared_data,
                   const size_t non_shared_len) {
     assert(shared_len <= key_size_);
-    size_t total_size = shared_len + non_shared_len;
 
-    if (IsKeyPinned() /* key is not in buf_ */) {
-      // Copy the key from external memory to buf_ (copy shared_len bytes)
-      EnlargeBufferIfNeeded(total_size);
-      memcpy(buf_, key_, shared_len);
-    } else if (total_size > buf_size_) {
+    size_t total_size = shared_len + non_shared_len;
+    if (total_size <= buf_size_) {
+      key_size_ = total_size;
+    } else {
       // Need to allocate space, delete previous space
       char* p = new char[total_size];
       memcpy(p, key_, shared_len);
 
-      if (buf_ != space_) {
-        delete[] buf_;
+      if (key_ != nullptr && key_ != space_) {
+        delete[] key_;
       }
 
-      buf_ = p;
+      key_ = p;
+      key_size_ = total_size;
       buf_size_ = total_size;
     }
 
-    memcpy(buf_ + shared_len, non_shared_data, non_shared_len);
-    key_ = buf_;
-    key_size_ = total_size;
+    memcpy(key_ + shared_len, non_shared_data, non_shared_len);
   }
 
-  Slice SetKey(const Slice& key, bool copy = true) {
+  void SetKey(const Slice& key) {
     size_t size = key.size();
-    if (copy) {
-      // Copy key to buf_
-      EnlargeBufferIfNeeded(size);
-      memcpy(buf_, key.data(), size);
-      key_ = buf_;
-    } else {
-      // Update key_ to point to external memory
-      key_ = key.data();
-    }
+    EnlargeBufferIfNeeded(size);
+    memcpy(key_, key.data(), size);
     key_size_ = size;
-    return Slice(key_, key_size_);
   }
 
-  // Copies the content of key, updates the reference to the user key in ikey
-  // and returns a Slice referencing the new copy.
-  Slice SetKey(const Slice& key, ParsedInternalKey* ikey) {
-    size_t key_n = key.size();
-    assert(key_n >= 8);
-    SetKey(key);
-    ikey->user_key = Slice(key_, key_n - 8);
-    return Slice(key_, key_n);
-  }
-
-  // Update the sequence number in the internal key.  Guarantees not to
-  // invalidate slices to the key (and the user key).
-  void UpdateInternalKey(uint64_t seq, ValueType t) {
-    assert(!IsKeyPinned());
-    assert(key_size_ >= 8);
-    uint64_t newval = (seq << 8) | t;
-    EncodeFixed64(&buf_[key_size_ - 8], newval);
-  }
-
-  bool IsKeyPinned() const { return (key_ != buf_); }
-
   void SetInternalKey(const Slice& key_prefix, const Slice& user_key,
                       SequenceNumber s,
                       ValueType value_type = kValueTypeForSeek) {
@@ -361,12 +290,10 @@ class IterKey {
     size_t usize = user_key.size();
     EnlargeBufferIfNeeded(psize + usize + sizeof(uint64_t));
     if (psize > 0) {
-      memcpy(buf_, key_prefix.data(), psize);
+      memcpy(key_, key_prefix.data(), psize);
     }
-    memcpy(buf_ + psize, user_key.data(), usize);
-    EncodeFixed64(buf_ + usize + psize, PackSequenceAndType(s, value_type));
-
-    key_ = buf_;
+    memcpy(key_ + psize, user_key.data(), usize);
+    EncodeFixed64(key_ + usize + psize, PackSequenceAndType(s, value_type));
     key_size_ = psize + usize + sizeof(uint64_t);
   }
 
@@ -392,24 +319,22 @@ class IterKey {
 
   void EncodeLengthPrefixedKey(const Slice& key) {
     auto size = key.size();
-    EnlargeBufferIfNeeded(size + static_cast<size_t>(VarintLength(size)));
-    char* ptr = EncodeVarint32(buf_, static_cast<uint32_t>(size));
+    EnlargeBufferIfNeeded(size + VarintLength(size));
+    char* ptr = EncodeVarint32(key_, size);
     memcpy(ptr, key.data(), size);
-    key_ = buf_;
   }
 
  private:
-  char* buf_;
+  char* key_;
   size_t buf_size_;
-  const char* key_;
   size_t key_size_;
   char space_[32];  // Avoid allocation for short keys
 
   void ResetBuffer() {
-    if (buf_ != space_) {
-      delete[] buf_;
-      buf_ = space_;
+    if (key_ != nullptr && key_ != space_) {
+      delete[] key_;
     }
+    key_ = space_;
     buf_size_ = sizeof(space_);
     key_size_ = 0;
   }
@@ -425,7 +350,7 @@ class IterKey {
     if (key_size > buf_size_) {
       // Need to enlarge the buffer.
       ResetBuffer();
-      buf_ = new char[key_size];
+      key_ = new char[key_size];
       buf_size_ = key_size;
     }
   }
@@ -440,19 +365,19 @@ class InternalKeySliceTransform : public SliceTransform {
   explicit InternalKeySliceTransform(const SliceTransform* transform)
       : transform_(transform) {}
 
-  virtual const char* Name() const override { return transform_->Name(); }
+  virtual const char* Name() const { return transform_->Name(); }
 
-  virtual Slice Transform(const Slice& src) const override {
+  virtual Slice Transform(const Slice& src) const {
     auto user_key = ExtractUserKey(src);
     return transform_->Transform(user_key);
   }
 
-  virtual bool InDomain(const Slice& src) const override {
+  virtual bool InDomain(const Slice& src) const {
     auto user_key = ExtractUserKey(src);
     return transform_->InDomain(user_key);
   }
 
-  virtual bool InRange(const Slice& dst) const override {
+  virtual bool InRange(const Slice& dst) const {
     auto user_key = ExtractUserKey(dst);
     return transform_->InRange(user_key);
   }

db/dbformat_test.cc

@@ -1,4 +1,4 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+//  Copyright (c) 2013, Facebook, Inc.  All rights reserved.
 //  This source code is licensed under the BSD-style license found in the
 //  LICENSE file in the root directory of this source tree. An additional grant
 //  of patent rights can be found in the PATENTS file in the same directory.
@@ -49,9 +49,9 @@ static void TestKey(const std::string& key,
   ASSERT_TRUE(!ParseInternalKey(Slice("bar"), &decoded));
 }
 
-class FormatTest : public testing::Test {};
+class FormatTest { };
 
-TEST_F(FormatTest, InternalKey_EncodeDecode) {
+TEST(FormatTest, InternalKey_EncodeDecode) {
   const char* keys[] = { "", "k", "hello", "longggggggggggggggggggggg" };
   const uint64_t seq[] = {
     1, 2, 3,
@@ -67,7 +67,7 @@ TEST_F(FormatTest, InternalKey_EncodeDecode) {
   }
 }
 
-TEST_F(FormatTest, InternalKeyShortSeparator) {
+TEST(FormatTest, InternalKeyShortSeparator) {
   // When user keys are same
   ASSERT_EQ(IKey("foo", 100, kTypeValue),
             Shorten(IKey("foo", 100, kTypeValue),
@@ -103,14 +103,14 @@ TEST_F(FormatTest, InternalKeyShortSeparator) {
                     IKey("foo", 200, kTypeValue)));
 }
 
-TEST_F(FormatTest, InternalKeyShortestSuccessor) {
+TEST(FormatTest, InternalKeyShortestSuccessor) {
   ASSERT_EQ(IKey("g", kMaxSequenceNumber, kValueTypeForSeek),
             ShortSuccessor(IKey("foo", 100, kTypeValue)));
   ASSERT_EQ(IKey("\xff\xff", 100, kTypeValue),
             ShortSuccessor(IKey("\xff\xff", 100, kTypeValue)));
 }
 
-TEST_F(FormatTest, IterKeyOperation) {
+TEST(FormatTest, IterKeyOperation) {
   IterKey k;
   const char p[] = "abcdefghijklmnopqrstuvwxyz";
   const char q[] = "0123456789";
@@ -149,28 +149,8 @@ TEST_F(FormatTest, IterKeyOperation) {
               "abcdefghijklmnopqrstuvwxyz"));
 }
 
-TEST_F(FormatTest, UpdateInternalKey) {
-  std::string user_key("abcdefghijklmnopqrstuvwxyz");
-  uint64_t new_seq = 0x123456;
-  ValueType new_val_type = kTypeDeletion;
-
-  std::string ikey;
-  AppendInternalKey(&ikey, ParsedInternalKey(user_key, 100U, kTypeValue));
-  size_t ikey_size = ikey.size();
-  UpdateInternalKey(&ikey, new_seq, new_val_type);
-  ASSERT_EQ(ikey_size, ikey.size());
-
-  Slice in(ikey);
-  ParsedInternalKey decoded;
-  ASSERT_TRUE(ParseInternalKey(in, &decoded));
-  ASSERT_EQ(user_key, decoded.user_key.ToString());
-  ASSERT_EQ(new_seq, decoded.sequence);
-  ASSERT_EQ(new_val_type, decoded.type);
-}
-
 }  // namespace rocksdb
 
 int main(int argc, char** argv) {
-  ::testing::InitGoogleTest(&argc, argv);
-  return RUN_ALL_TESTS();
+  return rocksdb::test::RunAllTests();
 }

db/deletefile_test.cc

@@ -1,4 +1,4 @@
-//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+//  Copyright (c) 2013, Facebook, Inc.  All rights reserved.
 //  This source code is licensed under the BSD-style license found in the
 //  LICENSE file in the root directory of this source tree. An additional grant
 //  of patent rights can be found in the PATENTS file in the same directory.
@@ -7,14 +7,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file. See the AUTHORS file for names of contributors.
 
-#ifndef ROCKSDB_LITE
-
 #include "rocksdb/db.h"
 #include "db/db_impl.h"
 #include "db/filename.h"
 #include "db/version_set.h"
 #include "db/write_batch_internal.h"
-#include "util/string_util.h"
 #include "util/testharness.h"
 #include "util/testutil.h"
 #include "rocksdb/env.h"
@@ -26,7 +23,7 @@
 
 namespace rocksdb {
 
-class DeleteFileTest : public testing::Test {
+class DeleteFileTest {
  public:
   std::string dbname_;
   Options options_;
@@ -37,8 +34,7 @@ class DeleteFileTest : public testing::Test {
   DeleteFileTest() {
     db_ = nullptr;
     env_ = Env::Default();
-    options_.delete_obsolete_files_period_micros = 0;  // always do full purge
-    options_.enable_thread_tracking = true;
+    options_.max_background_flushes = 0;
     options_.write_buffer_size = 1024*1024*1000;
     options_.target_file_size_base = 1024*1024*1000;
     options_.max_bytes_for_level_base = 1024*1024*1000;
@@ -60,7 +56,7 @@ class DeleteFileTest : public testing::Test {
 
     DestroyDB(dbname_, options_);
     numlevels_ = 7;
-    EXPECT_OK(ReopenDB(true));
+    ASSERT_OK(ReopenDB(true));
   }
 
   Status ReopenDB(bool create) {
@@ -75,7 +71,6 @@ class DeleteFileTest : public testing::Test {
 
   void CloseDB() {
     delete db_;
-    db_ = nullptr;
   }
 
   void AddKeys(int numkeys, int startkey = 0) {
@@ -83,7 +78,7 @@ class DeleteFileTest : public testing::Test {
     options.sync = false;
     ReadOptions roptions;
     for (int i = startkey; i < (numkeys + startkey) ; i++) {
-      std::string temp = ToString(i);
+      std::string temp = std::to_string(i);
       Slice key(temp);
       Slice value(temp);
       ASSERT_OK(db_->Put(options, key, value));
@@ -120,14 +115,10 @@ class DeleteFileTest : public testing::Test {
     DBImpl* dbi = reinterpret_cast<DBImpl*>(db_);
     ASSERT_OK(dbi->TEST_FlushMemTable());
     ASSERT_OK(dbi->TEST_WaitForFlushMemTable());
-    for (int i = 0; i < 2; ++i) {
-      ASSERT_OK(dbi->TEST_CompactRange(i, nullptr, nullptr));
-    }
 
     AddKeys(50000, 10000);
     ASSERT_OK(dbi->TEST_FlushMemTable());
     ASSERT_OK(dbi->TEST_WaitForFlushMemTable());
-    ASSERT_OK(dbi->TEST_CompactRange(0, nullptr, nullptr));
   }
 
   void CheckFileTypeCounts(std::string& dir,
@@ -154,7 +145,7 @@ class DeleteFileTest : public testing::Test {
 
 };
 
-TEST_F(DeleteFileTest, AddKeysAndQueryLevels) {
+TEST(DeleteFileTest, AddKeysAndQueryLevels) {
   CreateTwoLevels();
   std::vector<LiveFileMetaData> metadata;
   db_->GetLiveFilesMetaData(&metadata);
@@ -200,7 +191,7 @@ TEST_F(DeleteFileTest, AddKeysAndQueryLevels) {
   CloseDB();
 }
 
-TEST_F(DeleteFileTest, PurgeObsoleteFilesTest) {
+TEST(DeleteFileTest, PurgeObsoleteFilesTest) {
   CreateTwoLevels();
   // there should be only one (empty) log file because CreateTwoLevels()
   // flushes the memtables to disk
@@ -208,11 +199,8 @@ TEST_F(DeleteFileTest, PurgeObsoleteFilesTest) {
   // 2 ssts, 1 manifest
   CheckFileTypeCounts(dbname_, 0, 2, 1);
   std::string first("0"), last("999999");
-  CompactRangeOptions compact_options;
-  compact_options.change_level = true;
-  compact_options.target_level = 2;
   Slice first_slice(first), last_slice(last);
-  db_->CompactRange(compact_options, &first_slice, &last_slice);
+  db_->CompactRange(&first_slice, &last_slice, true, 2);
   // 1 sst after compaction
   CheckFileTypeCounts(dbname_, 0, 1, 1);
 
@@ -221,7 +209,7 @@ TEST_F(DeleteFileTest, PurgeObsoleteFilesTest) {
   Iterator *itr = 0;
   CreateTwoLevels();
   itr = db_->NewIterator(ReadOptions());
-  db_->CompactRange(compact_options, &first_slice, &last_slice);
+  db_->CompactRange(&first_slice, &last_slice, true, 2);
   // 3 sst after compaction with live iterator
   CheckFileTypeCounts(dbname_, 0, 3, 1);
   delete itr;
@@ -231,7 +219,7 @@ TEST_F(DeleteFileTest, PurgeObsoleteFilesTest) {
   CloseDB();
 }
 
-TEST_F(DeleteFileTest, DeleteFileWithIterator) {
+TEST(DeleteFileTest, DeleteFileWithIterator) {
   CreateTwoLevels();
   ReadOptions options;
   Iterator* it = db_->NewIterator(options);
@@ -262,7 +250,7 @@ TEST_F(DeleteFileTest, DeleteFileWithIterator) {
   CloseDB();
 }
 
-TEST_F(DeleteFileTest, DeleteLogFiles) {
+TEST(DeleteFileTest, DeleteLogFiles) {
   AddKeys(10, 0);
   VectorLogPtr logfiles;
   db_->GetSortedWalFiles(logfiles);
@@ -271,11 +259,11 @@ TEST_F(DeleteFileTest, DeleteLogFiles) {
   // Should not succeed because live logs are not allowed to be deleted
   std::unique_ptr<LogFile> alive_log = std::move(logfiles.back());
   ASSERT_EQ(alive_log->Type(), kAliveLogFile);
-  ASSERT_OK(env_->FileExists(options_.wal_dir + "/" + alive_log->PathName()));
+  ASSERT_TRUE(env_->FileExists(options_.wal_dir + "/" + alive_log->PathName()));
   fprintf(stdout, "Deleting alive log file %s\n",
           alive_log->PathName().c_str());
   ASSERT_TRUE(!db_->DeleteFile(alive_log->PathName()).ok());
-  ASSERT_OK(env_->FileExists(options_.wal_dir + "/" + alive_log->PathName()));
+  ASSERT_TRUE(env_->FileExists(options_.wal_dir + "/" + alive_log->PathName()));
   logfiles.clear();
 
   // Call Flush to bring about a new working log file and add more keys
@@ -289,99 +277,19 @@ TEST_F(DeleteFileTest, DeleteLogFiles) {
   ASSERT_GT(logfiles.size(), 0UL);
   std::unique_ptr<LogFile> archived_log = std::move(logfiles.front());
   ASSERT_EQ(archived_log->Type(), kArchivedLogFile);
-  ASSERT_OK(
-      env_->FileExists(options_.wal_dir + "/" + archived_log->PathName()));
+  ASSERT_TRUE(env_->FileExists(options_.wal_dir + "/" +
+        archived_log->PathName()));
   fprintf(stdout, "Deleting archived log file %s\n",
           archived_log->PathName().c_str());
   ASSERT_OK(db_->DeleteFile(archived_log->PathName()));
-  ASSERT_EQ(Status::NotFound(), env_->FileExists(options_.wal_dir + "/" +
-                                                 archived_log->PathName()));
+  ASSERT_TRUE(!env_->FileExists(options_.wal_dir + "/" +
+        archived_log->PathName()));
   CloseDB();
 }
 
-TEST_F(DeleteFileTest, DeleteNonDefaultColumnFamily) {
-  CloseDB();
-  DBOptions db_options;
-  db_options.create_if_missing = true;
-  db_options.create_missing_column_families = true;
-  std::vector<ColumnFamilyDescriptor> column_families;
-  column_families.emplace_back();
-  column_families.emplace_back("new_cf", ColumnFamilyOptions());
-
-  std::vector<rocksdb::ColumnFamilyHandle*> handles;
-  rocksdb::DB* db;
-  ASSERT_OK(DB::Open(db_options, dbname_, column_families, &handles, &db));
-
-  Random rnd(5);
-  for (int i = 0; i < 1000; ++i) {
-    ASSERT_OK(db->Put(WriteOptions(), handles[1], test::RandomKey(&rnd, 10),
-                      test::RandomKey(&rnd, 10)));
-  }
-  ASSERT_OK(db->Flush(FlushOptions(), handles[1]));
-  for (int i = 0; i < 1000; ++i) {
-    ASSERT_OK(db->Put(WriteOptions(), handles[1], test::RandomKey(&rnd, 10),
-                      test::RandomKey(&rnd, 10)));
-  }
-  ASSERT_OK(db->Flush(FlushOptions(), handles[1]));
-
-  std::vector<LiveFileMetaData> metadata;
-  db->GetLiveFilesMetaData(&metadata);
-  ASSERT_EQ(2U, metadata.size());
-  ASSERT_EQ("new_cf", metadata[0].column_family_name);
-  ASSERT_EQ("new_cf", metadata[1].column_family_name);
-  auto old_file = metadata[0].smallest_seqno < metadata[1].smallest_seqno
-                      ? metadata[0].name
-                      : metadata[1].name;
-  auto new_file = metadata[0].smallest_seqno > metadata[1].smallest_seqno
-                      ? metadata[0].name
-                      : metadata[1].name;
-  ASSERT_TRUE(db->DeleteFile(new_file).IsInvalidArgument());
-  ASSERT_OK(db->DeleteFile(old_file));
-
-  {
-    std::unique_ptr<Iterator> itr(db->NewIterator(ReadOptions(), handles[1]));
-    int count = 0;
-    for (itr->SeekToFirst(); itr->Valid(); itr->Next()) {
-      ASSERT_OK(itr->status());
-      ++count;
-    }
-    ASSERT_EQ(count, 1000);
-  }
-
-  delete handles[0];
-  delete handles[1];
-  delete db;
-
-  ASSERT_OK(DB::Open(db_options, dbname_, column_families, &handles, &db));
-  {
-    std::unique_ptr<Iterator> itr(db->NewIterator(ReadOptions(), handles[1]));
-    int count = 0;
-    for (itr->SeekToFirst(); itr->Valid(); itr->Next()) {
-      ASSERT_OK(itr->status());
-      ++count;
-    }
-    ASSERT_EQ(count, 1000);
-  }
-
-  delete handles[0];
-  delete handles[1];
-  delete db;
-}
-
 } //namespace rocksdb
 
 int main(int argc, char** argv) {
-  ::testing::InitGoogleTest(&argc, argv);
-  return RUN_ALL_TESTS();
+  return rocksdb::test::RunAllTests();
 }
 
-#else
-#include <stdio.h>
-
-int main(int argc, char** argv) {
-  fprintf(stderr,
-          "SKIPPED as DBImpl::DeleteFile is not supported in ROCKSDB_LITE\n");
-  return 0;
-}
-
-#endif  // !ROCKSDB_LITE