db_bench_tool: fix buffer size

Summary: Found by gcc warning: x86_64-pc-linux-gnu-g++ --version x86_64-pc-linux-gnu-g++ (GCC) 7.1.1 20170710 tools/db_bench_tool.cc: In member function 'void rocksdb::Benchmark::RandomWithVerify(rocksdb::ThreadState*)': tools/db_bench_tool.cc:4430:8: error: '%lu' directive output may be truncated writing between 1 and 19 bytes into a region of size between 0 and 66 [-Werror=format-truncation=] void RandomWithVerify(ThreadState* thread) { ^~~~~~~~~~~~~~~~ tools/db_bench_tool.cc:4430:8: note: directive argument in the range [0, 9223372036854775807] tools/db_bench_tool.cc:4492:13: note: 'snprintf' output between 37 and 128 bytes into a destination of size 100 snprintf(msg, sizeof(msg), ~~~~~~~~^~~~~~~~~~~~~~~~~~ "( get:%" PRIu64 " put:%" PRIu64 " del:%" PRIu64 " total:%" \ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ PRIu64 " found:%" PRIu64 ")", ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ gets_done, puts_done, deletes_done, readwrites_, found); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ cc1plus: all warnings being treated as errors Makefile:1707: recipe for target 'tools/db_bench_tool.o' failed Closes https://github.com/facebook/rocksdb/pull/2558 Differential Revision: D5398703 Pulled By: siying fbshipit-source-id: 6ffa552bbd8b59cfc2c36289f86ff9b9acca8ca6
table/block.h: change memset
2026-11-06 11:02:36 -05:00 · 2019-10-30 14:12:09 -07:00 · 2019-10-30 14:06:58 -07:00 · 2019-10-30 14:06:58 -07:00 · 2019-10-30 14:06:58 -07:00 · 2019-10-30 14:06:58 -07:00
909 changed files with 9734 additions and 12754 deletions
@@ -31,6 +31,7 @@ build/
 ldb
 manifest_dump
 sst_dump
+blob_dump
 column_aware_encoding_exp
 util/build_version.cc
 build_tools/VALGRIND_LOGS/
@@ -7,6 +7,7 @@ os:
 compiler:
  - clang
  - gcc
+osx_image: xcode8.3
 jdk:
  - oraclejdk7
 cache:
@@ -15,56 +16,55 @@ cache:

 addons:
   apt:
-      sources: ['ubuntu-toolchain-r-test', 'llvm-toolchain-precise-3.6']
-      packages: ['clang-3.6' , 'g++-6', 'zlib1g-dev', 'libbz2-dev', 'libsnappy-dev', 'curl', 'libgflags-dev', 'mingw-w64']
+      packages: ['zlib1g-dev', 'libbz2-dev', 'libsnappy-dev', 'curl', 'libgflags-dev', 'mingw-w64']
 env:
-  - TEST_GROUP=platform_dependent1
-  - TEST_GROUP=platform_dependent2
-  - TEST_GROUP=platform_dependent3
-  - TEST_GROUP=1
-  - TEST_GROUP=2
+  - TEST_GROUP=platform_dependent # 16-18 minutes
+  - TEST_GROUP=1 # 33-35 minutes
+  - TEST_GROUP=2 # 30-32 minutes
  # Run java tests
-  - JOB_NAME=java_test
+  - JOB_NAME=java_test # 4-11 minutes
  # Build ROCKSDB_LITE
-  - JOB_NAME=lite_build
+  - JOB_NAME=lite_build # 3-4 minutes
  # Build examples
-  - JOB_NAME=examples
-  - JOB_NAME=cmake
-  - JOB_NAME=cmake-mingw
+  - JOB_NAME=examples # 5-7 minutes
+  - JOB_NAME=cmake # 3-5 minutes
+  - JOB_NAME=cmake-mingw # 3 minutes

 matrix:
  exclude:
-  - os: osx
-    compiler: gcc
  - os: osx
    env: TEST_GROUP=1
  - os: osx
    env: TEST_GROUP=2
  - os : osx
    env: JOB_NAME=cmake-mingw
-  - os: linux
-    env: JOB_NAME=cmake-mingw
+  - os : linux
    compiler: clang
+  - os : osx
+    compiler: gcc
+
+# https://docs.travis-ci.com/user/caching/#ccache-cache
+install:
+  - if [ "${TRAVIS_OS_NAME}" == osx ]; then
+      brew install ccache;
+      PATH=$PATH:/usr/local/opt/ccache/libexec;
+    fi

 before_script:
-  - if [[ "${TRAVIS_OS_NAME}" == 'linux' && "${CXX}" == 'clang++' ]]; then CXX=clang++-3.6; fi
-  # test one linux g++ build with g++-6
-  - if [[ "${TRAVIS_OS_NAME}" == 'linux' && "${CXX}" == 'g++' && "${JOB_NAME}" == 'unittests' ]]; then CXX=g++-6; fi
-  # Limit the maximum number of open file descriptors to 8192
-  - ulimit -n 8192 || true
+  # Increase the maximum number of open file descriptors, since some tests use
+  # more FDs than the default limit.
+  - ulimit -n 8192

 script:
  - ${CXX} --version
-  - if [[ "${TEST_GROUP}" == 'platform_dependent1' ]]; then OPT=-DTRAVIS V=1 ROCKSDBTESTS_END=external_sst_file_basic_test make -j4 check_some; fi
-  - if [[ "${TEST_GROUP}" == 'platform_dependent2' ]]; then OPT=-DTRAVIS V=1 ROCKSDBTESTS_START=external_sst_file_basic_test ROCKSDBTESTS_END=checkpoint_test make -j4 check_some; fi
-  - if [[ "${TEST_GROUP}" == 'platform_dependent3' ]]; then OPT=-DTRAVIS V=1 ROCKSDBTESTS_START=checkpoint_test ROCKSDBTESTS_END=db_block_cache_test make -j4 check_some; fi
-  - if [[ "${TEST_GROUP}" == '1' ]]; then OPT=-DTRAVIS V=1 ROCKSDBTESTS_START=db_block_cache_test ROCKSDBTESTS_END=comparator_db_test make -j4 check_some; fi
-  - if [[ "${TEST_GROUP}" == '2' ]]; then OPT=-DTRAVIS V=1 ROCKSDBTESTS_START=comparator_db_test make -j4 check_some; fi
-  - if [[ "${JOB_NAME}" == 'java_test' ]]; then OPT=-DTRAVIS V=1 make clean jclean && make rocksdbjava jtest; fi
-  - if [[ "${JOB_NAME}" == 'lite_build' ]]; then OPT="-DTRAVIS -DROCKSDB_LITE" V=1 make -j4 static_lib; fi
-  - if [[ "${JOB_NAME}" == 'examples' ]]; then OPT=-DTRAVIS V=1 make -j4 static_lib; cd examples; make -j4; fi
-  - if [[ "${JOB_NAME}" == 'cmake' ]]; then mkdir build && cd build && cmake .. && make -j4 rocksdb; fi
-  - if [[ "${JOB_NAME}" == 'cmake-mingw' ]]; then mkdir build && cd build && cmake .. -DCMAKE_C_COMPILER=x86_64-w64-mingw32-gcc -DCMAKE_CXX_COMPILER=x86_64-w64-mingw32-g++ -DCMAKE_SYSTEM_NAME=Windows && make -j4 rocksdb; fi
+  - if [ "${TEST_GROUP}" == 'platform_dependent' ]; then OPT=-DTRAVIS V=1 make -j4 all; OPT=-DTRAVIS V=1 ROCKSDBTESTS_END=db_block_cache_test make -j4 check_some; fi
+  - if [ "${TEST_GROUP}" == '1' ]; then OPT=-DTRAVIS V=1 ROCKSDBTESTS_START=db_block_cache_test ROCKSDBTESTS_END=comparator_db_test make -j4 check_some; fi
+  - if [ "${TEST_GROUP}" == '2' ]; then OPT=-DTRAVIS V=1 ROCKSDBTESTS_START=comparator_db_test make -j4 check_some; fi
+  - if [ "${JOB_NAME}" == 'java_test' ]; then OPT=-DTRAVIS V=1 make clean jclean && make rocksdbjava jtest; fi
+  - if [ "${JOB_NAME}" == 'lite_build' ]; then OPT="-DTRAVIS -DROCKSDB_LITE" V=1 make -j4 static_lib; fi
+  - if [ "${JOB_NAME}" == 'examples' ]; then OPT=-DTRAVIS V=1 make -j4 static_lib; cd examples; make -j4; fi
+  - if [ "${JOB_NAME}" == 'cmake' ]; then mkdir build && cd build && cmake .. && make -j4 rocksdb; fi
+  - if [ "${JOB_NAME}" == 'cmake-mingw' ]; then mkdir build && cd build && cmake .. -DCMAKE_C_COMPILER=x86_64-w64-mingw32-gcc -DCMAKE_CXX_COMPILER=x86_64-w64-mingw32-g++ -DCMAKE_SYSTEM_NAME=Windows && make -j4 rocksdb; fi
 notifications:
    email:
      - leveldb@fb.com
@@ -195,7 +195,6 @@ endif()

 option(WITH_ASAN "build with ASAN" OFF)
 if(WITH_ASAN)
-  add_definitions(-DROCKSDB_TSAN_RUN)
  set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fsanitize=address")
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address")
  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=address")
@@ -207,7 +206,6 @@ endif()
 option(WITH_TSAN "build with TSAN" OFF)
 if(WITH_TSAN)
  set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fsanitize=thread -pie")
-  add_definitions(-DROCKSDB_TSAN_RUN)
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=thread -fPIC")
  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=thread -fPIC")
  if(WITH_JEMALLOC)
@@ -217,6 +215,7 @@ endif()

 option(WITH_UBSAN "build with UBSAN" OFF)
 if(WITH_UBSAN)
+  add_definitions(-DROCKSDB_UBSAN_RUN)
  set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fsanitize=undefined")
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=undefined")
  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=undefined")
@@ -359,6 +358,7 @@ set(SOURCES
        db/internal_stats.cc
        db/log_reader.cc
        db/log_writer.cc
+        db/malloc_stats.cc
        db/managed_iterator.cc
        db/memtable.cc
        db/memtable_list.cc
@@ -381,13 +381,14 @@ set(SOURCES
        env/env.cc
        env/env_chroot.cc
        env/env_hdfs.cc
-        env/memenv.cc
+        env/mock_env.cc
+        memtable/alloc_tracker.cc
        memtable/hash_cuckoo_rep.cc
        memtable/hash_linklist_rep.cc
        memtable/hash_skiplist_rep.cc
-        memtable/memtable_allocator.cc
        memtable/skiplistrep.cc
        memtable/vectorrep.cc
+        memtable/write_buffer_manager.cc
        monitoring/histogram.cc
        monitoring/histogram_windowing.cc
        monitoring/instrumented_mutex.cc
@@ -476,6 +477,7 @@ set(SOURCES
        utilities/blob_db/blob_db.cc
        utilities/blob_db/blob_db_impl.cc
        utilities/blob_db/blob_db_options_impl.cc
+        utilities/blob_db/blob_dump_tool.cc
        utilities/blob_db/blob_file.cc
        utilities/blob_db/blob_log_reader.cc
        utilities/blob_db/blob_log_writer.cc
@@ -498,6 +500,8 @@ set(SOURCES
        utilities/memory/memory_util.cc
        utilities/merge_operators/max.cc
        utilities/merge_operators/put.cc
+        utilities/merge_operators/cassandra/format.cc
+        utilities/merge_operators/cassandra/merge_operator.cc
        utilities/merge_operators/string_append/stringappend.cc
        utilities/merge_operators/string_append/stringappend2.cc
        utilities/merge_operators/uint64add.cc
@@ -632,6 +636,7 @@ set(TESTS
        db/db_test2.cc
        db/db_universal_compaction_test.cc
        db/db_wal_test.cc
+        db/db_write_test.cc
        db/dbformat_test.cc
        db/deletefile_test.cc
        db/external_sst_file_basic_test.cc
@@ -664,6 +669,7 @@ set(TESTS
        env/mock_env_test.cc
        memtable/inlineskiplist_test.cc
        memtable/skiplist_test.cc
+        memtable/write_buffer_manager_test.cc
        monitoring/histogram_test.cc
        monitoring/iostats_context_test.cc
        monitoring/statistics_test.cc
@@ -690,6 +696,7 @@ set(TESTS
        util/event_logger_test.cc
        util/file_reader_writer_test.cc
        util/filelock_test.cc
+        util/hash_test.cc
        util/heap_test.cc
        util/rate_limiter_test.cc
        util/slice_transform_test.cc
@@ -697,6 +704,7 @@ set(TESTS
        util/thread_list_test.cc
        util/thread_local_test.cc
        utilities/backupable/backupable_db_test.cc
+        utilities/blob_db/blob_db_test.cc
        utilities/checkpoint/checkpoint_test.cc
        utilities/column_aware_encoding_test.cc
        utilities/date_tiered/date_tiered_test.cc
@@ -705,6 +713,10 @@ set(TESTS
        utilities/geodb/geodb_test.cc
        utilities/lua/rocks_lua_test.cc
        utilities/memory/memory_test.cc
+        utilities/merge_operators/cassandra/cassandra_merge_test.cc
+        utilities/merge_operators/cassandra/cassandra_format_test.cc
+        utilities/merge_operators/cassandra/cassandra_row_merge_test.cc
+        utilities/merge_operators/cassandra/cassandra_serialize_test.cc
        utilities/merge_operators/string_append/stringappend_test.cc
        utilities/object_registry_test.cc
        utilities/option_change_migration/option_change_migration_test.cc
@@ -742,10 +754,10 @@ endforeach(sourcefile ${BENCHMARKS})
 # and linked to tests. Add test only code that is not #ifdefed for Release here.
 set(TESTUTIL_SOURCE
    db/db_test_util.cc
-    env/mock_env.cc
    monitoring/thread_status_updater_debug.cc
    table/mock_table.cc
    util/fault_injection_test_env.cc
+    utilities/merge_operators/cassandra/test_utils.cc
 )
 # test utilities are only build in debug
 enable_testing()
@@ -12,8 +12,3 @@ Complete your CLA here: <https://code.facebook.com/cla>

 If you prefer to sign a paper copy, we can send you a PDF.  Send us an 
 e-mail or create a new github issue to request the CLA in PDF format.
-
-## License
-
-By contributing to RocksDB, you agree that your contributions will be
-licensed under the [BSD License](LICENSE).
@@ -1,5 +1,8 @@
 # RocksDB default options change log
 ## Unreleased
+* delayed_write_rate takes the rate given by rate_limiter if not specified.
+
+## 5.2
 * Change the default of delayed slowdown value to 16MB/s and further increase the L0 stop condition to 36 files.

 ## 5.0 (11/17/2016)
@@ -1,5 +1,28 @@
 # Rocksdb Change Log
-## Unreleased
+## 5.6.2 (08/12/2017)
+### Bug Fixes
+* Fix incorrect dropping of deletions during intra-L0 compaction.
+
+## 5.6.1 (07/25/2017)
+### Bug Fixes
+* Fix lite build.
+
+## 5.6.0 (06/06/2017)
+### Public API Change
+* Scheduling flushes and compactions in the same thread pool is no longer supported by setting `max_background_flushes=0`. Instead, users can achieve this by configuring their high-pri thread pool to have zero threads.
+* Replace `Options::max_background_flushes`, `Options::max_background_compactions`, and `Options::base_background_compactions` all with `Options::max_background_jobs`, which automatically decides how many threads to allocate towards flush/compaction.
+* options.delayed_write_rate by default take the value of options.rate_limiter rate.
+* Replace global variable `IOStatsContext iostats_context` with `IOStatsContext* get_iostats_context()`; replace global variable `PerfContext perf_context` with `PerfContext* get_perf_context()`.
+
+### New Features
+* Change ticker/histogram statistics implementations to use core-local storage. This improves aggregation speed compared to our previous thread-local approach, particularly for applications with many threads.
+* Users can pass a cache object to write buffer manager, so that they can cap memory usage for memtable and block cache using one single limit.
+* Flush will be triggered when 7/8 of the limit introduced by write_buffer_manager or db_write_buffer_size is triggered, so that the hard threshold is hard to hit.
+* Introduce WriteOptions.low_pri. If it is true, low priority writes will be throttled if the compaction is behind.
+* `DB::IngestExternalFile()` now supports ingesting files into a database containing range deletions.
+
+### Bug Fixes
+* Shouldn't ignore return value of fsync() in flush.

 ## 5.5.0 (05/17/2017)
 ### New Features
@@ -13,7 +36,10 @@
 * Add debugging function `GetAllKeyVersions` to see internal versions of a range of keys.
 * Support file ingestion with universal compaction style
 * Support file ingestion behind with option `allow_ingest_behind`
-* New option enable_pipelined_write which may improve write throughput in case writing from multiple threads and WAL enabled .
+* New option enable_pipelined_write which may improve write throughput in case writing from multiple threads and WAL enabled.
+
+### Bug Fixes
+* Fix the bug that Direct I/O uses direct reads for non-SST file

 ## 5.4.0 (04/11/2017)
 ### Public API Change
@@ -0,0 +1,202 @@
+
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+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
@@ -1,10 +1,4 @@
-BSD License
-
-For rocksdb software
-
-Copyright (c) 2011-present, Facebook, Inc.
-All rights reserved.
---------------------------------------------------------------------
+This contains code that is from LevelDB, and that code is under the following license:

 Copyright (c) 2011 The LevelDB Authors. All rights reserved.

@@ -193,8 +193,8 @@ endif
 ifdef COMPILE_WITH_TSAN
 	DISABLE_JEMALLOC=1
 	EXEC_LDFLAGS += -fsanitize=thread
-	PLATFORM_CCFLAGS += -fsanitize=thread -fPIC -DROCKSDB_TSAN_RUN
-	PLATFORM_CXXFLAGS += -fsanitize=thread -fPIC -DROCKSDB_TSAN_RUN
+	PLATFORM_CCFLAGS += -fsanitize=thread -fPIC
+	PLATFORM_CXXFLAGS += -fsanitize=thread -fPIC
        # Turn off -pg when enabling TSAN testing, because that induces
        # a link failure.  TODO: find the root cause
 	PROFILING_FLAGS =
@@ -211,8 +211,8 @@ endif
 ifdef COMPILE_WITH_UBSAN
 	DISABLE_JEMALLOC=1
 	EXEC_LDFLAGS += -fsanitize=undefined
-	PLATFORM_CCFLAGS += -fsanitize=undefined
-	PLATFORM_CXXFLAGS += -fsanitize=undefined
+	PLATFORM_CCFLAGS += -fsanitize=undefined -DROCKSDB_UBSAN_RUN
+	PLATFORM_CXXFLAGS += -fsanitize=undefined -DROCKSDB_UBSAN_RUN
 endif

 ifndef DISABLE_JEMALLOC
@@ -335,6 +335,7 @@ TESTS = \
 	inlineskiplist_test \
 	env_basic_test \
 	env_test \
+	hash_test \
 	thread_local_test \
 	rate_limiter_test \
 	perf_context_test \
@@ -362,7 +363,9 @@ TESTS = \
 	db_properties_test \
 	db_table_properties_test \
 	db_statistics_test \
+	db_write_test \
 	autovector_test \
+	blob_db_test \
 	cleanable_test \
 	column_family_test \
 	table_properties_collector_test \
@@ -398,7 +401,12 @@ TESTS = \
 	external_sst_file_test \
 	prefix_test \
 	skiplist_test \
+	write_buffer_manager_test \
 	stringappend_test \
+	cassandra_format_test \
+	cassandra_merge_test \
+	cassandra_row_merge_test \
+	cassandra_serialize_test \
 	ttl_test \
 	date_tiered_test \
 	backupable_db_test \
@@ -485,7 +493,8 @@ TOOLS = \
 	ldb \
 	db_repl_stress \
 	rocksdb_dump \
-	rocksdb_undump
+	rocksdb_undump \
+	blob_dump \

 TEST_LIBS = \
 	librocksdb_env_basic_test.a
@@ -901,7 +910,7 @@ clean:
 	rm -rf $(CLEAN_FILES) ios-x86 ios-arm scan_build_report
 	find . -name "*.[oda]" -exec rm -f {} \;
 	find . -type f -regex ".*\.\(\(gcda\)\|\(gcno\)\)" -exec rm {} \;
-	rm -rf bzip2* snappy* zlib* lz4*
+	rm -rf bzip2* snappy* zlib* lz4* zstd*
 	cd java; $(MAKE) clean

 tags:
@@ -981,12 +990,27 @@ cache_test: cache/cache_test.o $(LIBOBJECTS) $(TESTHARNESS)
 coding_test: util/coding_test.o $(LIBOBJECTS) $(TESTHARNESS)
 	$(AM_LINK)

+hash_test: util/hash_test.o $(LIBOBJECTS) $(TESTHARNESS)
+	$(AM_LINK)
+
 option_change_migration_test: utilities/option_change_migration/option_change_migration_test.o db/db_test_util.o $(LIBOBJECTS) $(TESTHARNESS)
 	$(AM_LINK)

 stringappend_test: utilities/merge_operators/string_append/stringappend_test.o $(LIBOBJECTS) $(TESTHARNESS)
 	$(AM_LINK)

+cassandra_format_test: utilities/merge_operators/cassandra/cassandra_format_test.o $(LIBOBJECTS) $(TESTHARNESS)
+	$(AM_LINK)
+
+cassandra_merge_test: utilities/merge_operators/cassandra/cassandra_merge_test.o utilities/merge_operators/cassandra/test_utils.o $(LIBOBJECTS) $(TESTHARNESS)
+	$(AM_LINK)
+
+cassandra_row_merge_test: utilities/merge_operators/cassandra/cassandra_row_merge_test.o utilities/merge_operators/cassandra/test_utils.o $(LIBOBJECTS) $(TESTHARNESS)
+	$(AM_LINK)
+
+cassandra_serialize_test: utilities/merge_operators/cassandra/cassandra_serialize_test.o $(LIBOBJECTS) $(TESTHARNESS)
+	$(AM_LINK)
+
 redis_test: utilities/redis/redis_lists_test.o $(LIBOBJECTS) $(TESTHARNESS)
 	$(AM_LINK)

@@ -1062,6 +1086,9 @@ db_sst_test: db/db_sst_test.o db/db_test_util.o $(LIBOBJECTS) $(TESTHARNESS)
 db_statistics_test: db/db_statistics_test.o db/db_test_util.o $(LIBOBJECTS) $(TESTHARNESS)
 	$(AM_LINK)

+db_write_test: db/db_write_test.o db/db_test_util.o $(LIBOBJECTS) $(TESTHARNESS)
+	$(AM_LINK)
+
 external_sst_file_basic_test: db/external_sst_file_basic_test.o db/db_test_util.o $(LIBOBJECTS) $(TESTHARNESS)
 	$(AM_LINK)

@@ -1217,6 +1244,9 @@ inlineskiplist_test: memtable/inlineskiplist_test.o $(LIBOBJECTS) $(TESTHARNESS)
 skiplist_test: memtable/skiplist_test.o $(LIBOBJECTS) $(TESTHARNESS)
 	$(AM_LINK)

+write_buffer_manager_test: memtable/write_buffer_manager_test.o $(LIBOBJECTS) $(TESTHARNESS)
+	$(AM_LINK)
+
 version_edit_test: db/version_edit_test.o $(LIBOBJECTS) $(TESTHARNESS)
 	$(AM_LINK)

@@ -1343,6 +1373,9 @@ transaction_test: utilities/transactions/transaction_test.o $(LIBOBJECTS) $(TEST
 sst_dump: tools/sst_dump.o $(LIBOBJECTS)
 	$(AM_LINK)

+blob_dump: tools/blob_dump.o $(LIBOBJECTS)
+	$(AM_LINK)
+
 column_aware_encoding_exp: utilities/column_aware_encoding_exp.o $(EXPOBJECTS)
 	$(AM_LINK)

@@ -1373,6 +1406,9 @@ lua_test: utilities/lua/rocks_lua_test.o db/db_test_util.o $(LIBOBJECTS) $(TESTH
 range_del_aggregator_test: db/range_del_aggregator_test.o db/db_test_util.o $(LIBOBJECTS) $(TESTHARNESS)
 	$(AM_LINK)

+blob_db_test: utilities/blob_db/blob_db_test.o $(LIBOBJECTS) $(TESTHARNESS)
+	$(AM_LINK)
+
 #-------------------------------------------------
 # make install related stuff
 INSTALL_PATH ?= /usr/local
@@ -1576,12 +1612,12 @@ rocksdbjavastaticrelease: rocksdbjavastatic
 rocksdbjavastaticreleasedocker: rocksdbjavastatic
 	DOCKER_LINUX_X64_CONTAINER=`docker ps -aqf name=rocksdb_linux_x64-be`; \
 	if [ -z "$$DOCKER_LINUX_X64_CONTAINER" ]; then \
-		docker container create --attach stdin --attach stdout --attach stderr --volume `pwd`:/rocksdb-host --name rocksdb_linux_x64-be evolvedbinary/rocksjava:centos5_x64-be /rocksdb-host/java/crossbuild/docker-build-linux-centos.sh; \
+		docker container create --attach stdin --attach stdout --attach stderr --volume `pwd`:/rocksdb-host --name rocksdb_linux_x64-be evolvedbinary/rocksjava:centos6_x64-be /rocksdb-host/java/crossbuild/docker-build-linux-centos.sh; \
 	fi
 	docker start -a rocksdb_linux_x64-be
 	DOCKER_LINUX_X86_CONTAINER=`docker ps -aqf name=rocksdb_linux_x86-be`; \
 	if [ -z "$$DOCKER_LINUX_X86_CONTAINER" ]; then \
-		docker container create --attach stdin --attach stdout --attach stderr --volume `pwd`:/rocksdb-host --name rocksdb_linux_x86-be evolvedbinary/rocksjava:centos5_x86-be /rocksdb-host/java/crossbuild/docker-build-linux-centos.sh; \
+		docker container create --attach stdin --attach stdout --attach stderr --volume `pwd`:/rocksdb-host --name rocksdb_linux_x86-be evolvedbinary/rocksjava:centos6_x86-be /rocksdb-host/java/crossbuild/docker-build-linux-centos.sh; \
 	fi
 	docker start -a rocksdb_linux_x86-be
 	cd java;jar -cf target/$(ROCKSDB_JAR_ALL) HISTORY*.md
@@ -1,33 +0,0 @@
-Additional Grant of Patent Rights Version 2
-
-"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.
-
-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.
@@ -1,4 +1,8 @@
-REPO_PATH = "internal_repo_rocksdb/repo/"
+
+import os
+
+TARGETS_PATH = os.path.dirname(__file__)
+REPO_PATH = TARGETS_PATH[(TARGETS_PATH.find('fbcode/') + len('fbcode/')):] + "/"
 BUCK_BINS = "buck-out/gen/" + REPO_PATH
 TEST_RUNNER = REPO_PATH + "buckifier/rocks_test_runner.sh"
 rocksdb_compiler_flags = [
@@ -12,6 +16,7 @@ rocksdb_compiler_flags = [
  "-DROCKSDB_RANGESYNC_PRESENT",
  "-DROCKSDB_SCHED_GETCPU_PRESENT",
  "-DROCKSDB_SUPPORT_THREAD_LOCAL",
+  "-DHAVE_SSE42",
  "-DOS_LINUX",
  # Flags to enable libs we include
  "-DSNAPPY",
@@ -34,7 +39,7 @@ rocksdb_external_deps = [
  ('lz4', None, 'lz4'),
  ('zstd', None),
  ('tbb', None),
-  ("numa", "2.0.8", "numa"),
+  ("numa", None, "numa"),
  ("googletest", None, "gtest"),
 ]

@@ -83,6 +88,7 @@ cpp_library(
      "db/internal_stats.cc",
      "db/log_reader.cc",
      "db/log_writer.cc",
+      "db/malloc_stats.cc",
      "db/managed_iterator.cc",
      "db/memtable.cc",
      "db/memtable_list.cc",
@@ -107,13 +113,14 @@ cpp_library(
      "env/env_hdfs.cc",
      "env/env_posix.cc",
      "env/io_posix.cc",
-      "env/memenv.cc",
+      "env/mock_env.cc",
+      "memtable/alloc_tracker.cc",
      "memtable/hash_cuckoo_rep.cc",
      "memtable/hash_linklist_rep.cc",
      "memtable/hash_skiplist_rep.cc",
-      "memtable/memtable_allocator.cc",
      "memtable/skiplistrep.cc",
      "memtable/vectorrep.cc",
+      "memtable/write_buffer_manager.cc",
      "monitoring/histogram.cc",
      "monitoring/histogram_windowing.cc",
      "monitoring/instrumented_mutex.cc",
@@ -218,6 +225,8 @@ cpp_library(
      "utilities/leveldb_options/leveldb_options.cc",
      "utilities/lua/rocks_lua_compaction_filter.cc",
      "utilities/memory/memory_util.cc",
+      "utilities/merge_operators/cassandra/format.cc",
+      "utilities/merge_operators/cassandra/merge_operator.cc",
      "utilities/merge_operators/max.cc",
      "utilities/merge_operators/put.cc",
      "utilities/merge_operators/string_append/stringappend.cc",
@@ -248,6 +257,7 @@ cpp_library(
      "tools/ldb_cmd.cc",
      "tools/ldb_tool.cc",
      "tools/sst_dump_tool.cc",
+      "utilities/blob_db/blob_dump_tool.cc",
    ],
    deps = [],
    preprocessor_flags = rocksdb_preprocessor_flags,
@@ -259,12 +269,12 @@ cpp_library(
    name = "rocksdb_test_lib",
    headers = AutoHeaders.RECURSIVE_GLOB,
    srcs = [
-      "env/mock_env.cc",
      "table/mock_table.cc",
      "util/fault_injection_test_env.cc",
      "util/testharness.cc",
      "util/testutil.cc",
      "db/db_test_util.cc",
+      "utilities/merge_operators/cassandra/test_utils.cc",
      "utilities/col_buf_encoder.cc",
      "utilities/col_buf_decoder.cc",
      "utilities/column_aware_encoding_util.cc",
@@ -299,162 +309,182 @@ cpp_library(
 )

 # [test_name, test_src, test_type]
-ROCKS_TESTS = [['merger_test', 'table/merger_test.cc', 'serial'],
- ['cache_test', 'cache/cache_test.cc', 'serial'],
- ['options_file_test', 'db/options_file_test.cc', 'serial'],
- ['compaction_picker_test', 'db/compaction_picker_test.cc', 'serial'],
- ['corruption_test', 'db/corruption_test.cc', 'serial'],
- ['thread_list_test', 'util/thread_list_test.cc', 'serial'],
- ['table_properties_collector_test',
-  'db/table_properties_collector_test.cc',
-  'serial'],
- ['document_db_test', 'utilities/document/document_db_test.cc', 'serial'],
- ['event_logger_test', 'util/event_logger_test.cc', 'serial'],
- ['coding_test', 'util/coding_test.cc', 'serial'],
- ['statistics_test', 'monitoring/statistics_test.cc', 'serial'],
- ['options_settable_test', 'options/options_settable_test.cc', 'serial'],
- ['sst_dump_test', 'tools/sst_dump_test.cc', 'serial'],
- ['column_aware_encoding_test',
-  'utilities/column_aware_encoding_test.cc',
-  'serial'],
- ['db_iterator_test', 'db/db_iterator_test.cc', 'serial'],
- ['db_sst_test', 'db/db_sst_test.cc', 'parallel'],
- ['geodb_test', 'utilities/geodb/geodb_test.cc', 'serial'],
- ['listener_test', 'db/listener_test.cc', 'serial'],
- ['write_callback_test', 'db/write_callback_test.cc', 'serial'],
- ['version_set_test', 'db/version_set_test.cc', 'serial'],
- ['full_filter_block_test', 'table/full_filter_block_test.cc', 'serial'],
- ['cleanable_test', 'table/cleanable_test.cc', 'serial'],
- ['checkpoint_test', 'utilities/checkpoint/checkpoint_test.cc', 'serial'],
- ['compact_files_test', 'db/compact_files_test.cc', 'serial'],
- ['db_options_test', 'db/db_options_test.cc', 'serial'],
- ['object_registry_test', 'utilities/object_registry_test.cc', 'serial'],
+ROCKS_TESTS = [['arena_test', 'util/arena_test.cc', 'serial'],
 ['auto_roll_logger_test', 'util/auto_roll_logger_test.cc', 'serial'],
- ['dbformat_test', 'db/dbformat_test.cc', 'serial'],
- ['write_batch_with_index_test',
-  'utilities/write_batch_with_index/write_batch_with_index_test.cc',
-  'serial'],
- ['json_document_test', 'utilities/document/json_document_test.cc', 'serial'],
- ['file_reader_writer_test', 'util/file_reader_writer_test.cc', 'serial'],
- ['repair_test', 'db/repair_test.cc', 'serial'],
- ['persistent_cache_test',
-  'utilities/persistent_cache/persistent_cache_test.cc',
-  'parallel'],
- ['db_bloom_filter_test', 'db/db_bloom_filter_test.cc', 'serial'],
- ['external_sst_file_basic_test',
-  'db/external_sst_file_basic_test.cc',
-  'serial'],
- ['options_test', 'options/options_test.cc', 'serial'],
- ['perf_context_test', 'db/perf_context_test.cc', 'serial'],
- ['db_block_cache_test', 'db/db_block_cache_test.cc', 'serial'],
- ['heap_test', 'util/heap_test.cc', 'serial'],
- ['db_test2', 'db/db_test2.cc', 'serial'],
- ['filelock_test', 'util/filelock_test.cc', 'serial'],
- ['write_controller_test', 'db/write_controller_test.cc', 'serial'],
- ['compaction_iterator_test', 'db/compaction_iterator_test.cc', 'serial'],
- ['spatial_db_test', 'utilities/spatialdb/spatial_db_test.cc', 'serial'],
- ['c_test', 'db/c_test.c', 'serial'],
- ['range_del_aggregator_test', 'db/range_del_aggregator_test.cc', 'serial'],
- ['date_tiered_test', 'utilities/date_tiered/date_tiered_test.cc', 'serial'],
- ['ldb_cmd_test', 'tools/ldb_cmd_test.cc', 'serial'],
- ['db_test', 'db/db_test.cc', 'parallel'],
- ['block_based_filter_block_test',
-  'table/block_based_filter_block_test.cc',
-  'serial'],
- ['merge_test', 'db/merge_test.cc', 'serial'],
- ['bloom_test', 'util/bloom_test.cc', 'serial'],
- ['block_test', 'table/block_test.cc', 'serial'],
- ['cuckoo_table_builder_test', 'table/cuckoo_table_builder_test.cc', 'serial'],
+ ['autovector_test', 'util/autovector_test.cc', 'serial'],
 ['backupable_db_test',
  'utilities/backupable/backupable_db_test.cc',
  'parallel'],
- ['db_flush_test', 'db/db_flush_test.cc', 'serial'],
- ['filename_test', 'db/filename_test.cc', 'serial'],
- ['cuckoo_table_reader_test', 'table/cuckoo_table_reader_test.cc', 'serial'],
- ['slice_transform_test', 'util/slice_transform_test.cc', 'serial'],
- ['cuckoo_table_db_test', 'db/cuckoo_table_db_test.cc', 'serial'],
- ['inlineskiplist_test', 'memtable/inlineskiplist_test.cc', 'parallel'],
- ['optimistic_transaction_test',
-  'utilities/transactions/optimistic_transaction_test.cc',
+ ['blob_db_test', 'utilities/blob_db/blob_db_test.cc', 'serial'],
+ ['block_based_filter_block_test',
+  'table/block_based_filter_block_test.cc',
  'serial'],
- ['hash_table_test',
-  'utilities/persistent_cache/hash_table_test.cc',
+ ['block_test', 'table/block_test.cc', 'serial'],
+ ['bloom_test', 'util/bloom_test.cc', 'serial'],
+ ['c_test', 'db/c_test.c', 'serial'],
+ ['cache_test', 'cache/cache_test.cc', 'serial'],
+ ['cassandra_format_test',
+  'utilities/merge_operators/cassandra/cassandra_format_test.cc',
  'serial'],
- ['db_dynamic_level_test', 'db/db_dynamic_level_test.cc', 'serial'],
- ['option_change_migration_test',
-  'utilities/option_change_migration/option_change_migration_test.cc',
+ ['cassandra_merge_test',
+  'utilities/merge_operators/cassandra/cassandra_merge_test.cc',
  'serial'],
- ['db_inplace_update_test', 'db/db_inplace_update_test.cc', 'serial'],
- ['autovector_test', 'util/autovector_test.cc', 'serial'],
- ['db_iter_test', 'db/db_iter_test.cc', 'serial'],
- ['flush_job_test', 'db/flush_job_test.cc', 'serial'],
- ['wal_manager_test', 'db/wal_manager_test.cc', 'serial'],
- ['write_batch_test', 'db/write_batch_test.cc', 'serial'],
- ['crc32c_test', 'util/crc32c_test.cc', 'serial'],
- ['rate_limiter_test', 'util/rate_limiter_test.cc', 'serial'],
- ['external_sst_file_test', 'db/external_sst_file_test.cc', 'parallel'],
- ['compaction_job_test', 'db/compaction_job_test.cc', 'serial'],
- ['mock_env_test', 'env/mock_env_test.cc', 'serial'],
- ['db_table_properties_test', 'db/db_table_properties_test.cc', 'serial'],
- ['db_compaction_test', 'db/db_compaction_test.cc', 'parallel'],
- ['arena_test', 'util/arena_test.cc', 'serial'],
- ['stringappend_test',
-  'utilities/merge_operators/string_append/stringappend_test.cc',
+ ['cassandra_row_merge_test',
+  'utilities/merge_operators/cassandra/cassandra_row_merge_test.cc',
  'serial'],
- ['reduce_levels_test', 'tools/reduce_levels_test.cc', 'serial'],
- ['prefix_test', 'db/prefix_test.cc', 'serial'],
- ['ttl_test', 'utilities/ttl/ttl_test.cc', 'serial'],
- ['merge_helper_test', 'db/merge_helper_test.cc', 'serial'],
- ['file_indexer_test', 'db/file_indexer_test.cc', 'serial'],
- ['memory_test', 'utilities/memory/memory_test.cc', 'serial'],
- ['log_test', 'db/log_test.cc', 'serial'],
- ['env_timed_test', 'utilities/env_timed_test.cc', 'serial'],
- ['deletefile_test', 'db/deletefile_test.cc', 'serial'],
- ['partitioned_filter_block_test',
-  'table/partitioned_filter_block_test.cc',
+ ['cassandra_serialize_test',
+  'utilities/merge_operators/cassandra/cassandra_serialize_test.cc',
  'serial'],
- ['comparator_db_test', 'db/comparator_db_test.cc', 'serial'],
- ['compaction_job_stats_test', 'db/compaction_job_stats_test.cc', 'serial'],
- ['thread_local_test', 'util/thread_local_test.cc', 'serial'],
- ['version_builder_test', 'db/version_builder_test.cc', 'serial'],
- ['db_range_del_test', 'db/db_range_del_test.cc', 'serial'],
- ['table_test', 'table/table_test.cc', 'parallel'],
- ['db_tailing_iter_test', 'db/db_tailing_iter_test.cc', 'serial'],
- ['db_compaction_filter_test', 'db/db_compaction_filter_test.cc', 'parallel'],
- ['options_util_test', 'utilities/options/options_util_test.cc', 'serial'],
- ['dynamic_bloom_test', 'util/dynamic_bloom_test.cc', 'serial'],
- ['db_basic_test', 'db/db_basic_test.cc', 'serial'],
- ['db_merge_operator_test', 'db/db_merge_operator_test.cc', 'serial'],
- ['manual_compaction_test', 'db/manual_compaction_test.cc', 'parallel'],
- ['delete_scheduler_test', 'util/delete_scheduler_test.cc', 'serial'],
- ['transaction_test', 'utilities/transactions/transaction_test.cc', 'serial'],
- ['db_io_failure_test', 'db/db_io_failure_test.cc', 'serial'],
- ['db_log_iter_test', 'db/db_log_iter_test.cc', 'serial'],
+ ['checkpoint_test', 'utilities/checkpoint/checkpoint_test.cc', 'serial'],
+ ['cleanable_test', 'table/cleanable_test.cc', 'serial'],
+ ['coding_test', 'util/coding_test.cc', 'serial'],
+ ['column_aware_encoding_test',
+  'utilities/column_aware_encoding_test.cc',
+  'serial'],
+ ['column_family_test', 'db/column_family_test.cc', 'serial'],
+ ['compact_files_test', 'db/compact_files_test.cc', 'serial'],
 ['compact_on_deletion_collector_test',
  'utilities/table_properties_collectors/compact_on_deletion_collector_test.cc',
  'serial'],
- ['env_test', 'env/env_test.cc', 'serial'],
- ['db_wal_test', 'db/db_wal_test.cc', 'parallel'],
- ['sim_cache_test', 'utilities/simulator_cache/sim_cache_test.cc', 'serial'],
+ ['compaction_iterator_test', 'db/compaction_iterator_test.cc', 'serial'],
+ ['compaction_job_stats_test', 'db/compaction_job_stats_test.cc', 'serial'],
+ ['compaction_job_test', 'db/compaction_job_test.cc', 'serial'],
+ ['compaction_picker_test', 'db/compaction_picker_test.cc', 'serial'],
+ ['comparator_db_test', 'db/comparator_db_test.cc', 'serial'],
+ ['corruption_test', 'db/corruption_test.cc', 'serial'],
+ ['crc32c_test', 'util/crc32c_test.cc', 'serial'],
+ ['cuckoo_table_builder_test', 'table/cuckoo_table_builder_test.cc', 'serial'],
+ ['cuckoo_table_db_test', 'db/cuckoo_table_db_test.cc', 'serial'],
+ ['cuckoo_table_reader_test', 'table/cuckoo_table_reader_test.cc', 'serial'],
+ ['date_tiered_test', 'utilities/date_tiered/date_tiered_test.cc', 'serial'],
+ ['db_basic_test', 'db/db_basic_test.cc', 'serial'],
+ ['db_block_cache_test', 'db/db_block_cache_test.cc', 'serial'],
+ ['db_bloom_filter_test', 'db/db_bloom_filter_test.cc', 'serial'],
+ ['db_compaction_filter_test', 'db/db_compaction_filter_test.cc', 'parallel'],
+ ['db_compaction_test', 'db/db_compaction_test.cc', 'parallel'],
+ ['db_dynamic_level_test', 'db/db_dynamic_level_test.cc', 'serial'],
+ ['db_encryption_test', 'db/db_encryption_test.cc', 'serial'],
+ ['db_flush_test', 'db/db_flush_test.cc', 'serial'],
+ ['db_inplace_update_test', 'db/db_inplace_update_test.cc', 'serial'],
+ ['db_io_failure_test', 'db/db_io_failure_test.cc', 'serial'],
+ ['db_iter_test', 'db/db_iter_test.cc', 'serial'],
+ ['db_iterator_test', 'db/db_iterator_test.cc', 'serial'],
+ ['db_log_iter_test', 'db/db_log_iter_test.cc', 'serial'],
 ['db_memtable_test', 'db/db_memtable_test.cc', 'serial'],
+ ['db_merge_operator_test', 'db/db_merge_operator_test.cc', 'serial'],
+ ['db_options_test', 'db/db_options_test.cc', 'serial'],
+ ['db_properties_test', 'db/db_properties_test.cc', 'serial'],
+ ['db_range_del_test', 'db/db_range_del_test.cc', 'serial'],
+ ['db_sst_test', 'db/db_sst_test.cc', 'parallel'],
+ ['db_statistics_test', 'db/db_statistics_test.cc', 'serial'],
+ ['db_table_properties_test', 'db/db_table_properties_test.cc', 'serial'],
+ ['db_tailing_iter_test', 'db/db_tailing_iter_test.cc', 'serial'],
+ ['db_test', 'db/db_test.cc', 'parallel'],
+ ['db_test2', 'db/db_test2.cc', 'serial'],
 ['db_universal_compaction_test',
  'db/db_universal_compaction_test.cc',
  'parallel'],
+ ['db_wal_test', 'db/db_wal_test.cc', 'parallel'],
+ ['db_write_test', 'db/db_write_test.cc', 'serial'],
+ ['dbformat_test', 'db/dbformat_test.cc', 'serial'],
+ ['delete_scheduler_test', 'util/delete_scheduler_test.cc', 'serial'],
+ ['deletefile_test', 'db/deletefile_test.cc', 'serial'],
+ ['document_db_test', 'utilities/document/document_db_test.cc', 'serial'],
+ ['dynamic_bloom_test', 'util/dynamic_bloom_test.cc', 'serial'],
+ ['env_basic_test', 'env/env_basic_test.cc', 'serial'],
+ ['env_test', 'env/env_test.cc', 'serial'],
+ ['env_timed_test', 'utilities/env_timed_test.cc', 'serial'],
+ ['event_logger_test', 'util/event_logger_test.cc', 'serial'],
+ ['external_sst_file_basic_test',
+  'db/external_sst_file_basic_test.cc',
+  'serial'],
+ ['external_sst_file_test', 'db/external_sst_file_test.cc', 'parallel'],
+ ['fault_injection_test', 'db/fault_injection_test.cc', 'parallel'],
+ ['file_indexer_test', 'db/file_indexer_test.cc', 'serial'],
+ ['file_reader_writer_test', 'util/file_reader_writer_test.cc', 'serial'],
+ ['filelock_test', 'util/filelock_test.cc', 'serial'],
+ ['filename_test', 'db/filename_test.cc', 'serial'],
+ ['flush_job_test', 'db/flush_job_test.cc', 'serial'],
+ ['full_filter_block_test', 'table/full_filter_block_test.cc', 'serial'],
+ ['geodb_test', 'utilities/geodb/geodb_test.cc', 'serial'],
+ ['hash_table_test',
+  'utilities/persistent_cache/hash_table_test.cc',
+  'serial'],
+ ['hash_test', 'util/hash_test.cc', 'serial'],
+ ['heap_test', 'util/heap_test.cc', 'serial'],
 ['histogram_test', 'monitoring/histogram_test.cc', 'serial'],
+ ['inlineskiplist_test', 'memtable/inlineskiplist_test.cc', 'parallel'],
+ ['iostats_context_test', 'monitoring/iostats_context_test.cc', 'serial'],
+ ['json_document_test', 'utilities/document/json_document_test.cc', 'serial'],
+ ['ldb_cmd_test', 'tools/ldb_cmd_test.cc', 'serial'],
+ ['listener_test', 'db/listener_test.cc', 'serial'],
+ ['log_test', 'db/log_test.cc', 'serial'],
+ ['lru_cache_test', 'cache/lru_cache_test.cc', 'serial'],
+ ['manual_compaction_test', 'db/manual_compaction_test.cc', 'parallel'],
+ ['memory_test', 'utilities/memory/memory_test.cc', 'serial'],
+ ['memtable_list_test', 'db/memtable_list_test.cc', 'serial'],
+ ['merge_helper_test', 'db/merge_helper_test.cc', 'serial'],
+ ['merge_test', 'db/merge_test.cc', 'serial'],
+ ['merger_test', 'table/merger_test.cc', 'serial'],
+ ['mock_env_test', 'env/mock_env_test.cc', 'serial'],
+ ['object_registry_test', 'utilities/object_registry_test.cc', 'serial'],
+ ['optimistic_transaction_test',
+  'utilities/transactions/optimistic_transaction_test.cc',
+  'serial'],
+ ['option_change_migration_test',
+  'utilities/option_change_migration/option_change_migration_test.cc',
+  'serial'],
+ ['options_file_test', 'db/options_file_test.cc', 'serial'],
+ ['options_settable_test', 'options/options_settable_test.cc', 'serial'],
+ ['options_test', 'options/options_test.cc', 'serial'],
+ ['options_util_test', 'utilities/options/options_util_test.cc', 'serial'],
+ ['partitioned_filter_block_test',
+  'table/partitioned_filter_block_test.cc',
+  'serial'],
+ ['perf_context_test', 'db/perf_context_test.cc', 'serial'],
+ ['persistent_cache_test',
+  'utilities/persistent_cache/persistent_cache_test.cc',
+  'parallel'],
+ ['plain_table_db_test', 'db/plain_table_db_test.cc', 'serial'],
+ ['prefix_test', 'db/prefix_test.cc', 'serial'],
+ ['range_del_aggregator_test', 'db/range_del_aggregator_test.cc', 'serial'],
+ ['rate_limiter_test', 'util/rate_limiter_test.cc', 'serial'],
+ ['reduce_levels_test', 'tools/reduce_levels_test.cc', 'serial'],
+ ['repair_test', 'db/repair_test.cc', 'serial'],
+ ['sim_cache_test', 'utilities/simulator_cache/sim_cache_test.cc', 'serial'],
+ ['skiplist_test', 'memtable/skiplist_test.cc', 'serial'],
+ ['slice_transform_test', 'util/slice_transform_test.cc', 'serial'],
+ ['spatial_db_test', 'utilities/spatialdb/spatial_db_test.cc', 'serial'],
+ ['sst_dump_test', 'tools/sst_dump_test.cc', 'serial'],
+ ['statistics_test', 'monitoring/statistics_test.cc', 'serial'],
+ ['stringappend_test',
+  'utilities/merge_operators/string_append/stringappend_test.cc',
+  'serial'],
+ ['table_properties_collector_test',
+  'db/table_properties_collector_test.cc',
+  'serial'],
+ ['table_test', 'table/table_test.cc', 'parallel'],
+ ['thread_list_test', 'util/thread_list_test.cc', 'serial'],
+ ['thread_local_test', 'util/thread_local_test.cc', 'serial'],
+ ['timer_queue_test', 'util/timer_queue_test.cc', 'serial'],
+ ['transaction_test', 'utilities/transactions/transaction_test.cc', 'serial'],
+ ['ttl_test', 'utilities/ttl/ttl_test.cc', 'serial'],
 ['util_merge_operators_test',
  'utilities/util_merge_operators_test.cc',
  'serial'],
- ['fault_injection_test', 'db/fault_injection_test.cc', 'parallel'],
- ['env_basic_test', 'env/env_basic_test.cc', 'serial'],
- ['iostats_context_test', 'monitoring/iostats_context_test.cc', 'serial'],
- ['memtable_list_test', 'db/memtable_list_test.cc', 'serial'],
- ['column_family_test', 'db/column_family_test.cc', 'serial'],
- ['db_properties_test', 'db/db_properties_test.cc', 'serial'],
+ ['version_builder_test', 'db/version_builder_test.cc', 'serial'],
 ['version_edit_test', 'db/version_edit_test.cc', 'serial'],
- ['skiplist_test', 'memtable/skiplist_test.cc', 'serial'],
- ['lru_cache_test', 'cache/lru_cache_test.cc', 'serial'],
- ['plain_table_db_test', 'db/plain_table_db_test.cc', 'serial'],
- ['db_statistics_test', 'db/db_statistics_test.cc', 'serial']]
+ ['version_set_test', 'db/version_set_test.cc', 'serial'],
+ ['wal_manager_test', 'db/wal_manager_test.cc', 'serial'],
+ ['write_batch_test', 'db/write_batch_test.cc', 'serial'],
+ ['write_batch_with_index_test',
+  'utilities/write_batch_with_index/write_batch_with_index_test.cc',
+  'serial'],
+ ['write_buffer_manager_test',
+  'memtable/write_buffer_manager_test.cc',
+  'serial'],
+ ['write_callback_test', 'db/write_callback_test.cc', 'serial'],
+ ['write_controller_test', 'db/write_controller_test.cc', 'serial']]


 # Generate a test rule for each entry in ROCKS_TESTS
@@ -479,3 +509,15 @@ for test_cfg in ROCKS_TESTS:
      deps = [":" + test_bin],
      command = [TEST_RUNNER, BUCK_BINS + test_bin]
    )
+
+custom_unittest(
+    name = "make_rocksdbjavastatic",
+    type = "simple",
+    command = ["internal_repo_rocksdb/make_rocksdbjavastatic.sh"],
+)
+
+custom_unittest(
+    name = "make_rocksdb_lite_release",
+    type = "simple",
+    command = ["internal_repo_rocksdb/make_rocksdb_lite_release.sh"],
+)
@@ -0,0 +1,2 @@
+arcanist_util are only used internaly, If you want to change it please check
+<internal_rocksdb_repo>/arcanist_util
@@ -1,3 +0,0 @@
-<?php
-
-phutil_register_library('arcanist_util', __FILE__);
@@ -1,71 +0,0 @@
-<?php
-
-/**
- * This file is automatically generated. Use 'arc liberate' to rebuild it.
- * @generated
- * @phutil-library-version 2
- */
-
-if (class_exists('ArcanistWorkflow')) {
-  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',
-    ),
-  ));
-} else {
-  phutil_register_library_map(array(
-    '__library_version__' => 2,
-    'class' =>
-    array(
-      'ArcanistCpplintLinter' => 'cpp_linter/ArcanistCpplintLinter.php',
-      'BaseDirectoryScopedFormatLinter' => 'cpp_linter/BaseDirectoryScopedFormatLinter.php',
-      'FacebookArcanistConfiguration' => 'config/FacebookOldArcanistConfiguration.php',
-      'FacebookFbcodeLintEngine' => 'lint_engine/FacebookFbcodeLintEngine.php',
-      'FacebookFbcodeUnitTestEngine' => 'unit_engine/FacebookOldFbcodeUnitTestEngine.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',
-    ),
-  ));
-}
@@ -1,43 +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.
-
-require('RocksDBCommonHelper.php');
-
-define("DIFF_COMMAND", "diff");
-
-class FacebookArcanistConfiguration extends ArcanistConfiguration {
-  public function getCustomArgumentsForCommand($command) {
-    if ($command == "land") {
-      return array(
-          'async' => array('help' => 'Just to make tools happy'));
-    }
-    return array();
-  }
-
-  public function didRunWorkflow($command,
-                                 ArcanistWorkflow $workflow,
-                                 $error_code) {
-    // Default options don't terminate on failure, but that's what we want. In
-    // the current case we use assertions intentionally as "terminate on failure
-    // invariants".
-    assert_options(ASSERT_BAIL, true);
-
-    assert($workflow);
-    assert(strlen($command) > 0);
-
-    if ($command == DIFF_COMMAND && !$workflow->isRawDiffSource()) {
-      $diffID = $workflow->getDiffId();
-
-      // When submitting a diff this code path gets executed multiple times in
-      // a row. We only care about the case when ID for the diff is provided
-      // because that's what we need to apply the diff and trigger the tests.
-      if (strlen($diffID) > 0) {
-        assert(is_numeric($diffID));
-        startTestsInSandcastle(true /* $applyDiff */, $workflow, $diffID);
-      }
-    }
-  }
-}
@@ -1,43 +0,0 @@
-<?php
-// Copyright 2004-present Facebook. All Rights Reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-
-require('RocksDBCommonHelper.php');
-
-define("DIFF_COMMAND", "diff");
-
-class FacebookArcanistConfiguration extends ArcanistConfiguration {
-  public function getCustomArgumentsForCommand($command) {
-    if ($command == "land") {
-      return array(
-          'async' => array('help' => 'Just to make tools happy'));
-    }
-    return array();
-  }
-
-  public function didRunWorkflow($command,
-                                 ArcanistBaseWorkflow $workflow,
-                                 $error_code) {
-    // Default options don't terminate on failure, but that's what we want. In
-    // the current case we use assertions intentionally as "terminate on failure
-    // invariants".
-    assert_options(ASSERT_BAIL, true);
-
-    assert($workflow);
-    assert(strlen($command) > 0);
-
-    if ($command == DIFF_COMMAND && !$workflow->isRawDiffSource()) {
-      $diffID = $workflow->getDiffId();
-
-      // When submitting a diff this code path gets executed multiple times in
-      // a row. We only care about the case when ID for the diff is provided
-      // because that's what we need to apply the diff and trigger the tests.
-      if (strlen($diffID) > 0) {
-        assert(is_numeric($diffID));
-        startTestsInSandcastle(true /* $applyDiff */, $workflow, $diffID);
-      }
-    }
-  }
-}
@@ -1,355 +0,0 @@
-<?php
-// Copyright 2004-present Facebook. All Rights Reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-
-// Name of the environment variables which need to be set by the entity which
-// triggers continuous runs so that code at the end of the file gets executed
-// and Sandcastle run starts.
-define("ENV_POST_RECEIVE_HOOK", "POST_RECEIVE_HOOK");
-define("ENV_HTTPS_APP_VALUE", "HTTPS_APP_VALUE");
-define("ENV_HTTPS_TOKEN_VALUE", "HTTPS_TOKEN_VALUE");
-
-define("PRIMARY_TOKEN_FILE", '/home/krad/.sandcastle');
-define("CONT_RUN_ALIAS", "leveldb");
-
-//////////////////////////////////////////////////////////////////////
-/*  Run tests in sandcastle */
-function postURL($diffID, $url) {
-  assert(strlen($diffID) > 0);
-  assert(is_numeric($diffID));
-  assert(strlen($url) > 0);
-
-  $cmd = 'echo \'{"diff_id": ' . $diffID . ', '
-         . '"name":"click here for sandcastle tests for D' . $diffID . '", '
-         . '"link":"' . $url . '"}\' | '
-         . 'arc call-conduit '
-         . 'differential.updateunitresults';
-  shell_exec($cmd);
-}
-
-function buildUpdateTestStatusCmd($diffID, $test, $status) {
-  assert(strlen($diffID) > 0);
-  assert(is_numeric($diffID));
-  assert(strlen($test) > 0);
-  assert(strlen($status) > 0);
-
-  $cmd = 'echo \'{"diff_id": ' . $diffID . ', '
-         . '"name":"' . $test . '", '
-         . '"result":"' . $status . '"}\' | '
-         . 'arc call-conduit '
-         . 'differential.updateunitresults';
-  return $cmd;
-}
-
-function updateTestStatus($diffID, $test) {
-  assert(strlen($diffID) > 0);
-  assert(is_numeric($diffID));
-  assert(strlen($test) > 0);
-
-  shell_exec(buildUpdateTestStatusCmd($diffID, $test, "waiting"));
-}
-
-function getSteps($applyDiff, $diffID, $username, $test) {
-  assert(strlen($username) > 0);
-  assert(strlen($test) > 0);
-
-  if ($applyDiff) {
-    assert(strlen($diffID) > 0);
-    assert(is_numeric($diffID));
-
-    $arcrc_content = (PHP_OS == "Darwin" ?
-        exec("cat ~/.arcrc | gzip -f | base64") :
-            exec("cat ~/.arcrc | gzip -f | base64 -w0"));
-    assert(strlen($arcrc_content) > 0);
-
-    // 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.
-    // also fix the sticky bit issue in sandcastle
-    $fix_permission = array(
-      "name" => "Fix environment",
-      "shell" => "chmod 600 ~/.arcrc && chmod +t /dev/shm",
-      "user" => "root"
-    );
-
-    // Construct the steps in the order of execution.
-    $steps[] = $setup;
-    $steps[] = $fix_permission;
-  }
-
-  // fbcode is a sub-repo. We cannot patch until we add it to ignore otherwise
-  // Git thinks it is an uncommited change.
-  $fix_git_ignore = array(
-    "name" => "Fix git ignore",
-    "shell" => "echo fbcode >> .git/info/exclude",
-    "user" => "root"
-  );
-
-  $steps[] = $fix_git_ignore;
-
-  // This will be the command used to execute particular type of tests.
-  $cmd = "";
-
-  if ($applyDiff) {
-    // Patch the code (keep your fingures crossed).
-    $patch = array(
-      "name" => "Patch " . $diffID,
-      "shell" => "arc --arcrc-file ~/.arcrc "
-                  . "patch --nocommit --diff " . $diffID,
-      "user" => "root"
-    );
-
-    $steps[] = $patch;
-
-    updateTestStatus($diffID, $test);
-    $cmd = buildUpdateTestStatusCmd($diffID, $test, "running") . "; ";
-  }
-
-  // Run the actual command.
-  $cmd = $cmd . "J=$(nproc) ./build_tools/precommit_checker.py " . $test
-           . "; exit_code=$?; ";
-
-  if ($applyDiff) {
-    $cmd = $cmd . "([[ \$exit_code -eq 0 ]] &&"
-                . buildUpdateTestStatusCmd($diffID, $test, "pass") . ")"
-                . "||" . buildUpdateTestStatusCmd($diffID, $test, "fail")
-                . "; ";
-  }
-
-  // shell command to sort the tests based on exit code and print
-  // the output of the log files.
-  $cat_sorted_logs = "
-    while read code log_file;
-      do echo \"################ cat \$log_file [exit_code : \$code] ################\";
-      cat \$log_file;
-    done < <(tail -n +2 LOG | sort -k7,7n -k4,4gr | awk '{print \$7,\$NF}')";
-
-  // Shell command to cat all log files
-  $cat_all_logs = "for f in `ls t/!(run-*)`; do echo \$f;cat \$f; done";
-
-  // If LOG file exist use it to cat log files sorted by exit code, otherwise
-  // cat everything
-  $logs_cmd = "if [ -f LOG ]; then {$cat_sorted_logs}; else {$cat_all_logs}; fi";
-
-  $cmd = $cmd . " cat /tmp/precommit-check.log"
-              . "; shopt -s extglob; {$logs_cmd}"
-              . "; shopt -u extglob; [[ \$exit_code -eq 0 ]]";
-  assert(strlen($cmd) > 0);
-
-  $run_test = array(
-    "name" => "Run " . $test,
-    "shell" => $cmd,
-    "user" => "root",
-    "parser" => "python build_tools/error_filter.py " . $test,
-  );
-
-  $steps[] = $run_test;
-
-  if ($applyDiff) {
-    // Clean up the user arc config we are using.
-    $cleanup = array(
-      "name" => "Arc cleanup",
-      "shell" => "rm -f ~/.arcrc",
-      "user" => "root"
-    );
-
-    $steps[] = $cleanup;
-  }
-
-  assert(count($steps) > 0);
-  return $steps;
-}
-
-function getSandcastleConfig() {
-  $sandcastle_config = array();
-
-  $cwd = getcwd();
-  $cwd_token_file = "{$cwd}/.sandcastle";
-  // This is a case when we're executed from a continuous run. Fetch the values
-  // from the environment.
-  if (getenv(ENV_POST_RECEIVE_HOOK)) {
-    $sandcastle_config[0] = getenv(ENV_HTTPS_APP_VALUE);
-    $sandcastle_config[1] = getenv(ENV_HTTPS_TOKEN_VALUE);
-  } else {
-    // This is a typical `[p]arc diff` case. Fetch the values from the specific
-    // configuration files.
-    for ($i = 0; $i < 50; $i++) {
-      if (file_exists(PRIMARY_TOKEN_FILE) ||
-          file_exists($cwd_token_file)) {
-        break;
-      }
-      // If we failed to fetch the tokens, sleep for 0.2 second and try again
-      usleep(200000);
-    }
-    assert(file_exists(PRIMARY_TOKEN_FILE) ||
-           file_exists($cwd_token_file));
-
-    // Try the primary location first, followed by a secondary.
-    if (file_exists(PRIMARY_TOKEN_FILE)) {
-      $cmd = 'cat ' . PRIMARY_TOKEN_FILE;
-    } else {
-      $cmd = 'cat ' . $cwd_token_file;
-    }
-
-    assert(strlen($cmd) > 0);
-    $sandcastle_config = explode(':', rtrim(shell_exec($cmd)));
-  }
-
-  // In this case be very explicit about the implications.
-  if (count($sandcastle_config) != 2) {
-    echo "Sandcastle configuration files don't contain valid information " .
-         "or the necessary environment variables aren't defined. Unable " .
-         "to validate the code changes.";
-    exit(1);
-  }
-
-  assert(strlen($sandcastle_config[0]) > 0);
-  assert(strlen($sandcastle_config[1]) > 0);
-  assert(count($sandcastle_config) > 0);
-
-  return $sandcastle_config;
-}
-
-// This function can be called either from `[p]arc diff` command or during
-// the Git post-receive hook.
- function startTestsInSandcastle($applyDiff, $workflow, $diffID) {
-  // Default options don't terminate on failure, but that's what we want. In
-  // the current case we use assertions intentionally as "terminate on failure
-  // invariants".
-  assert_options(ASSERT_BAIL, true);
-
-  // In case of a diff we'll send notificatios to the author. Else it'll go to
-  // the entire team because failures indicate that build quality has regressed.
-  $username = $applyDiff ? exec("whoami") : CONT_RUN_ALIAS;
-  assert(strlen($username) > 0);
-
-  if ($applyDiff) {
-    assert($workflow);
-    assert(strlen($diffID) > 0);
-    assert(is_numeric($diffID));
-  }
-
-  // List of tests we want to run in Sandcastle.
-  $tests = array("unit", "unit_non_shm", "unit_481", "clang_unit", "tsan",
-                 "asan", "lite_test", "valgrind", "release", "release_481",
-                 "clang_release", "punit", "clang_analyze", "code_cov",
-                 "java_build", "no_compression", "unity", "ubsan");
-
-  $send_email_template = array(
-    'type' => 'email',
-    'triggers' => array('fail'),
-    'emails' => array($username . '@fb.com'),
-  );
-
-  // Construct a job definition for each test and add it to the master plan.
-  foreach ($tests as $test) {
-    $stepName = "RocksDB diff " . $diffID . " test " . $test;
-
-    if (!$applyDiff) {
-      $stepName = "RocksDB continuous integration test " . $test;
-    }
-
-    $arg[] = array(
-      "name" => $stepName,
-      "report" => array($send_email_template),
-      "steps" => getSteps($applyDiff, $diffID, $username, $test)
-    );
-  }
-
-  // We cannot submit the parallel execution master plan to Sandcastle and
-  // 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 the job definitions? Otherwise we run over the max
-  // string size.
-  $cmd = "echo " . base64_encode(json_encode($arg))
-         . (PHP_OS == "Darwin" ?
-             " | gzip -f | base64" :
-                 " | gzip -f | base64 -w0");
-  assert(strlen($cmd) > 0);
-
-  $arg_encoded = shell_exec($cmd);
-  assert(strlen($arg_encoded) > 0);
-
-  $runName = "Run diff " . $diffID . "for user " . $username;
-
-  if (!$applyDiff) {
-    $runName = "RocksDB continuous integration build and test run";
-  }
-
-  $command = array(
-    "name" => $runName,
-    "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/create';
-
-  $job = array(
-    'command' => 'SandcastleUniversalCommand',
-    'args' => $command,
-    'capabilities' => array(
-      'vcs' => 'rocksdb-int-git',
-      'type' => 'lego',
-    ),
-    'hash' => 'origin/master',
-    'user' => $username,
-    'alias' => 'rocksdb-precommit',
-    'tags' => array('rocksdb'),
-    'description' => 'Rocksdb precommit job',
-  );
-
-  // Fetch the configuration necessary to submit a successful HTTPS request.
-  $sandcastle_config = getSandcastleConfig();
-
-  $app = $sandcastle_config[0];
-  $token = $sandcastle_config[1];
-
-  $cmd = 'curl -s -k -F app=' . $app . ' '
-          . '-F token=' . $token . ' -F job=\'' . json_encode($job)
-          .'\' "' . $url . '"';
-
-  $output = shell_exec($cmd);
-  assert(strlen($output) > 0);
-
-  // Extract Sandcastle URL from the response.
-  preg_match('/url": "(.+)"/', $output, $sandcastle_url);
-
-  assert(count($sandcastle_url) > 0, "Unable to submit Sandcastle request.");
-  assert(strlen($sandcastle_url[1]) > 0, "Unable to extract Sandcastle URL.");
-
-  if ($applyDiff) {
-    echo "\nSandcastle URL: " . $sandcastle_url[1] . "\n";
-    // Ask Phabricator to display it on the diff UI.
-    postURL($diffID, $sandcastle_url[1]);
-  } else {
-    echo "Continuous integration started Sandcastle tests. You can look at ";
-    echo "the progress at:\n" . $sandcastle_url[1] . "\n";
-  }
-}
-
-// Continuous run cript will set the environment variable and based on that
-// we'll trigger the execution of tests in Sandcastle. In that case we don't
-// need to apply any diffs and there's no associated workflow either.
-if (getenv(ENV_POST_RECEIVE_HOOK)) {
-  startTestsInSandcastle(
-    false /* $applyDiff */,
-    NULL /* $workflow */,
-    NULL /* $diffID */);
-}
@@ -1,88 +0,0 @@
-<?php
-
-/**
- * Uses google's cpplint.py to check code. RocksDB team forked this file from
- * phabricator's /src/lint/linter/ArcanistCpplintLinter.php, and customized it
- * for its own use.
- *
- * You can get it here:
- * http://google-styleguide.googlecode.com/svn/trunk/cpplint/cpplint.py
- * @group linter
- */
-final class ArcanistCpplintLinter extends ArcanistLinter {
-
-  public function willLintPaths(array $paths) {
-    return;
-  }
-
-  public function getLinterName() {
-    return 'cpplint.py';
-  }
-
-  public function getLintPath() {
-    $bin = 'cpplint.py';
-    // Search under current dir
-    list($err) = exec_manual('which %s/%s', $this->linterDir(), $bin);
-    if (!$err) {
-      return $this->linterDir().'/'.$bin;
-    }
-
-    // Look for globally installed cpplint.py
-    list($err) = exec_manual('which %s', $bin);
-    if ($err) {
-      throw new ArcanistUsageException(
-        "cpplint.py does not appear to be installed on this system. Install ".
-        "it (e.g., with 'wget \"http://google-styleguide.googlecode.com/".
-        "svn/trunk/cpplint/cpplint.py\"') ".
-        "in your .arcconfig to point to the directory where it resides. ".
-        "Also don't forget to chmod a+x cpplint.py!");
-    }
-
-    return $bin;
-  }
-
-  public function lintPath($path) {
-    $bin = $this->getLintPath();
-    $path = $this->rocksdbDir().'/'.$path;
-
-    $f = new ExecFuture("%C $path", $bin);
-
-    list($err, $stdout, $stderr) = $f->resolve();
-
-    if ($err === 2) {
-      throw new Exception("cpplint failed to run correctly:\n".$stderr);
-    }
-
-    $lines = explode("\n", $stderr);
-    $messages = array();
-    foreach ($lines as $line) {
-      $line = trim($line);
-      $matches = null;
-      $regex = '/^[^:]+:(\d+):\s*(.*)\s*\[(.*)\] \[(\d+)\]$/';
-      if (!preg_match($regex, $line, $matches)) {
-        continue;
-      }
-      foreach ($matches as $key => $match) {
-        $matches[$key] = trim($match);
-      }
-      $message = new ArcanistLintMessage();
-      $message->setPath($path);
-      $message->setLine($matches[1]);
-      $message->setCode($matches[3]);
-      $message->setName($matches[3]);
-      $message->setDescription($matches[2]);
-      $message->setSeverity(ArcanistLintSeverity::SEVERITY_WARNING);
-      $this->addLintMessage($message);
-    }
-  }
-
-  // The path of this linter
-  private function linterDir() {
-    return dirname(__FILE__);
-  }
-
-  // TODO(kaili) a quick and dirty way to figure out rocksdb's root dir.
-  private function rocksdbDir() {
-    return $this->linterDir()."/../..";
-  }
-}
@@ -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, $changed);
-    }
-
-    foreach (id(new FutureIterator($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);
-    }
-  }
-
-}
@@ -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', $issues) : '';
-  }
-
-}
@@ -1,58 +0,0 @@
-<?php
-// Copyright 2004-present Facebook. All Rights Reserved.
-// This source code is licensed under the BSD-style license found in the
-// LICENSE file in the root directory of this source tree. An additional grant
-// of patent rights can be found in the PATENTS file in the same directory.
-
-final class FbcodeClangFormatLinter extends BaseDirectoryScopedFormatLinter {
-
-  const LINT_FORMATTING = 1;
-  const CLANG_FORMAT_BINARY = '/mnt/vol/engshare/admin/scripts/clang-format';
-
-  protected function getPathsToLint() {
-    return array('');
-  }
-
-  public function getLinterName() {
-    return 'CLANG_FORMAT';
-  }
-
-  public function getLintSeverityMap() {
-    return array(
-      self::LINT_FORMATTING => ArcanistLintSeverity::SEVERITY_ADVICE,
-    );
-  }
-
-  public function getLintNameMap() {
-    return array(
-      self::LINT_FORMATTING => pht('Changes are not clang-formatted'),
-    );
-  }
-
-  protected function getFormatFuture($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;
-  }
-}
@@ -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;
-  }
-}
@@ -1,138 +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 FacebookFbcodeLintEngine extends ArcanistLintEngine {
-
-  public function buildLinters() {
-    $linters = array();
-    $paths = $this->getPaths();
-
-    // Remove all deleted files, which are not checked by the
-    // following linters.
-    foreach ($paths as $key => $path) {
-      if (!Filesystem::pathExists($this->getFilePathOnDisk($path))) {
-        unset($paths[$key]);
-      }
-    }
-
-    $generated_linter = new ArcanistGeneratedLinter();
-    $linters[] = $generated_linter;
-
-    $nolint_linter = new ArcanistNoLintLinter();
-    $linters[] = $nolint_linter;
-
-    $text_linter = new ArcanistTextLinter();
-    $text_linter->setCustomSeverityMap(array(
-      ArcanistTextLinter::LINT_LINE_WRAP
-        => ArcanistLintSeverity::SEVERITY_ADVICE,
-    ));
-    $linters[] = $text_linter;
-
-    $java_text_linter = new ArcanistTextLinter();
-    $java_text_linter->setMaxLineLength(100);
-    $java_text_linter->setCustomSeverityMap(array(
-      ArcanistTextLinter::LINT_LINE_WRAP
-        => ArcanistLintSeverity::SEVERITY_ADVICE,
-    ));
-    $linters[] = $java_text_linter;
-
-    $python_linter = new ArcanistPEP8Linter();
-    $linters[] = $python_linter;
-
-    $cpp_linters = array();
-    $cpp_linters[] = $linters[] = new ArcanistCpplintLinter();
-    $cpp_linters[] = $linters[] = new FbcodeCppLinter();
-
-    $clang_format_linter = new FbcodeClangFormatLinter();
-    $linters[] = $clang_format_linter;
-
-    $spelling_linter = new ArcanistSpellingLinter();
-    $linters[] = $spelling_linter;
-
-    foreach ($paths as $path) {
-      $is_text = false;
-
-      $text_extensions = (
-        '/\.('.
-        'cpp|cxx|c|cc|h|hpp|hxx|tcc|'.
-        'py|rb|hs|pl|pm|tw|'.
-        'php|phpt|css|js|'.
-        'java|'.
-        'thrift|'.
-        'lua|'.
-        'siv|'.
-        'txt'.
-        ')$/'
-      );
-      if (preg_match($text_extensions, $path)) {
-        $is_text = true;
-      }
-      if ($is_text) {
-        $nolint_linter->addPath($path);
-
-        $generated_linter->addPath($path);
-        $generated_linter->addData($path, $this->loadData($path));
-
-        if (preg_match('/\.java$/', $path)) {
-          $java_text_linter->addPath($path);
-          $java_text_linter->addData($path, $this->loadData($path));
-        } else {
-          $text_linter->addPath($path);
-          $text_linter->addData($path, $this->loadData($path));
-        }
-
-        $spelling_linter->addPath($path);
-        $spelling_linter->addData($path, $this->loadData($path));
-      }
-      if (preg_match('/\.(cpp|c|cc|cxx|h|hh|hpp|hxx|tcc)$/', $path)
-          && !preg_match('/third-party/', $path)) {
-        foreach ($cpp_linters as &$linter) {
-          $linter->addPath($path);
-          $linter->addData($path, $this->loadData($path));
-        }
-
-        $clang_format_linter->addPath($path);
-        $clang_format_linter->addData($path, $this->loadData($path));
-        $clang_format_linter->setPathChangedLines(
-          $path, $this->getPathChangedLines($path));
-      }
-
-      // Match *.py and contbuild config files
-      if (preg_match('/(\.(py|tw|smcprops)|^contbuild\/configs\/[^\/]*)$/',
-                    $path)) {
-        $space_count = 4;
-        $real_path = $this->getFilePathOnDisk($path);
-        $dir = dirname($real_path);
-        do {
-          if (file_exists($dir.'/.python2space')) {
-            $space_count = 2;
-            break;
-          }
-          $dir = dirname($dir);
-        } while ($dir != '/' && $dir != '.');
-
-        $cur_path_linter = $python_linter;
-        $cur_path_linter->addPath($path);
-        $cur_path_linter->addData($path, $this->loadData($path));
-
-        if (preg_match('/\.tw$/', $path)) {
-          $cur_path_linter->setCustomSeverityMap(array(
-            'E251' => ArcanistLintSeverity::SEVERITY_DISABLED,
-          ));
-        }
-      }
-    }
-
-    $name_linter = new ArcanistFilenameLinter();
-    $linters[] = $name_linter;
-    foreach ($paths as $path) {
-      $name_linter->addPath($path);
-    }
-
-    return $linters;
-  }
-
-}
@@ -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);
-  }
-}
@@ -1,17 +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 ArcanistUnitTestEngine {
-
-  public function run() {
-      // For a call to `arc call-conduit differential.updateunitresults` to
-      // succeed we need at least one entry here.
-      $result = new ArcanistUnitTestResult();
-      $result->setName("dummy_placeholder_entry");
-      $result->setResult(ArcanistUnitTestResult::RESULT_PASS);
-      return array($result);
-  }
-}
@@ -1,17 +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() {
-      // For a call to `arc call-conduit differential.updateunitresults` to
-      // succeed we need at least one entry here.
-      $result = new ArcanistUnitTestResult();
-      $result->setName("dummy_placeholder_entry");
-      $result->setResult(ArcanistUnitTestResult::RESULT_PASS);
-      return array($result);
-  }
-}
@@ -84,7 +84,7 @@ def get_tests(repo_path):
            else:
                # we consumed all the parallel tests
                break
-
+    
    return tests


@@ -122,7 +122,7 @@ def generate_targets(repo_path):
        [":rocksdb_lib"])

    # test for every test we found in the Makefile
-    for test in tests:
+    for test in sorted(tests):
        match_src = [src for src in cc_files if ("/%s.c" % test) in src]
        if len(match_src) == 0:
            print(ColorString.warning("Cannot find .cc file for %s" % test))
@@ -2,7 +2,11 @@ from __future__ import absolute_import
 from __future__ import division
 from __future__ import print_function
 from __future__ import unicode_literals
-rocksdb_target_header = """REPO_PATH = "internal_repo_rocksdb/repo/"
+rocksdb_target_header = """
+import os
+
+TARGETS_PATH = os.path.dirname(__file__)
+REPO_PATH = TARGETS_PATH[(TARGETS_PATH.find('fbcode/') + len('fbcode/')):] + "/"
 BUCK_BINS = "buck-out/gen/" + REPO_PATH
 TEST_RUNNER = REPO_PATH + "buckifier/rocks_test_runner.sh"
 rocksdb_compiler_flags = [
@@ -13,6 +17,10 @@ rocksdb_compiler_flags = [
  "-DROCKSDB_LIB_IO_POSIX",
  "-DROCKSDB_FALLOCATE_PRESENT",
  "-DROCKSDB_MALLOC_USABLE_SIZE",
+  "-DROCKSDB_RANGESYNC_PRESENT",
+  "-DROCKSDB_SCHED_GETCPU_PRESENT",
+  "-DROCKSDB_SUPPORT_THREAD_LOCAL",
+  "-DHAVE_SSE42",
  "-DOS_LINUX",
  # Flags to enable libs we include
  "-DSNAPPY",
@@ -35,7 +43,7 @@ rocksdb_external_deps = [
  ('lz4', None, 'lz4'),
  ('zstd', None),
  ('tbb', None),
-  ("numa", "2.0.8", "numa"),
+  ("numa", None, "numa"),
  ("googletest", None, "gtest"),
 ]

@@ -51,11 +51,13 @@ 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
-    if [ -z "$ROCKSDB_FBCODE_BUILD_WITH_481" ]; then
-      source "$PWD/build_tools/fbcode_config.sh"
-    else
+    if [ -n "$ROCKSDB_FBCODE_BUILD_WITH_481" ]; then
      # we need this to build with MySQL. Don't use for other purposes.
      source "$PWD/build_tools/fbcode_config4.8.1.sh"
+    elif [ -n "$ROCKSDB_FBCODE_BUILD_WITH_5xx" ]; then
+      source "$PWD/build_tools/fbcode_config.sh"
+    else
+      source "$PWD/build_tools/fbcode_config_platform007.sh"
    fi
 fi

@@ -0,0 +1,18 @@
+GCC_BASE=/mnt/gvfs/third-party2/gcc/6e8e715624fd15256a7970073387793dfcf79b46/7.x/centos7-native/b2ef2b6
+CLANG_BASE=/mnt/gvfs/third-party2/llvm-fb/ef37e1faa1c29782abfac1ae65a291b9b7966f6d/stable/centos7-native/c9f9104
+LIBGCC_BASE=/mnt/gvfs/third-party2/libgcc/c67031f0f739ac61575a061518d6ef5038f99f90/7.x/platform007/5620abc
+GLIBC_BASE=/mnt/gvfs/third-party2/glibc/60d6f124a78798b73944f5ba87c2306ae3460153/2.26/platform007/f259413
+SNAPPY_BASE=/mnt/gvfs/third-party2/snappy/7f9bdaada18f59bc27ec2b0871eb8a6144343aef/1.1.3/platform007/ca4da3d
+ZLIB_BASE=/mnt/gvfs/third-party2/zlib/22c2d65676fb7c23cfa797c4f6937f38b026f3cf/1.2.8/platform007/ca4da3d
+BZIP2_BASE=/mnt/gvfs/third-party2/bzip2/dc49a21c5fceec6456a7a28a94dcd16690af1337/1.0.6/platform007/ca4da3d
+LZ4_BASE=/mnt/gvfs/third-party2/lz4/907b498203d297947f3bb70b9466f47e100f1873/r131/platform007/ca4da3d
+ZSTD_BASE=/mnt/gvfs/third-party2/zstd/3ee276cbacfad3074e3f07bf826ac47f06970f4e/1.3.5/platform007/15a3614
+GFLAGS_BASE=/mnt/gvfs/third-party2/gflags/0b9929d2588991c65a57168bf88aff2db87c5d48/2.2.0/platform007/ca4da3d
+JEMALLOC_BASE=/mnt/gvfs/third-party2/jemalloc/9c910d36d6235cc40e8ff559358f1833452300ca/master/platform007/5b0f53e
+NUMA_BASE=/mnt/gvfs/third-party2/numa/9cbf2460284c669ed19c3ccb200a71f7dd7e53c7/2.0.11/platform007/ca4da3d
+LIBUNWIND_BASE=/mnt/gvfs/third-party2/libunwind/bf3d7497fe4e6d007354f0adffa16ce3003f8338/1.3/platform007/6f3e0a9
+TBB_BASE=/mnt/gvfs/third-party2/tbb/ff4e0b093534704d8abab678a4fd7f5ea7b094c7/2018_U5/platform007/ca4da3d
+KERNEL_HEADERS_BASE=/mnt/gvfs/third-party2/kernel-headers/b5c4a61a5c483ba24722005ae07895971a2ac707/fb/platform007/da39a3e
+BINUTILS_BASE=/mnt/gvfs/third-party2/binutils/92ff90349e2f43ea0a8246d8b1cf17b6869013e3/2.29.1/centos7-native/da39a3e
+VALGRIND_BASE=/mnt/gvfs/third-party2/valgrind/f3f697a28122e6bcd513273dd9c1ff23852fc59f/3.13.0/platform007/ca4da3d
+LUA_BASE=/mnt/gvfs/third-party2/lua/f0cd714433206d5139df61659eb7b28b1dea6683/5.3.4/platform007/5007832
@@ -1,7 +1,7 @@
-# Copyright (c) 2016-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-present, Facebook, Inc.  All rights reserved.
+#  This source code is licensed under both the GPLv2 (found in the
+#  COPYING file in the root directory) and Apache 2.0 License
+#  (found in the LICENSE.Apache file in the root directory).

 '''Filter for error messages in test output:
    - Receives merged stdout/stderr from test on stdin
@@ -128,7 +128,7 @@ else
 fi

 CFLAGS+=" $DEPS_INCLUDE"
-CFLAGS+=" -DROCKSDB_PLATFORM_POSIX -DROCKSDB_LIB_IO_POSIX -DROCKSDB_FALLOCATE_PRESENT -DROCKSDB_MALLOC_USABLE_SIZE -DROCKSDB_SCHED_GETCPU_PRESENT"
+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"
@@ -93,7 +93,7 @@ else
 fi

 CFLAGS+=" $DEPS_INCLUDE"
-CFLAGS+=" -DROCKSDB_PLATFORM_POSIX -DROCKSDB_LIB_IO_POSIX -DROCKSDB_FALLOCATE_PRESENT -DROCKSDB_MALLOC_USABLE_SIZE -DROCKSDB_SCHED_GETCPU_PRESENT"
+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"
 CFLAGS+=" -DSNAPPY -DGFLAGS=google -DZLIB -DBZIP2 -DLZ4 -DZSTD -DNUMA -DTBB"
 CXXFLAGS+=" $CFLAGS"

@@ -0,0 +1,157 @@
+#!/bin/sh
+#
+# Set environment variables so that we can compile rocksdb using
+# fbcode settings.  It uses the latest g++ and clang compilers and also
+# uses jemalloc
+# Environment variables that change the behavior of this script:
+# PIC_BUILD -- if true, it will only take pic versions of libraries from fbcode. libraries that don't have pic variant will not be included
+
+
+BASEDIR=`dirname $BASH_SOURCE`
+source "$BASEDIR/dependencies_platform007.sh"
+
+CFLAGS=""
+
+# libgcc
+LIBGCC_INCLUDE="$LIBGCC_BASE/include/c++/7.3.0"
+LIBGCC_LIBS=" -L $LIBGCC_BASE/lib"
+
+# glibc
+GLIBC_INCLUDE="$GLIBC_BASE/include"
+GLIBC_LIBS=" -L $GLIBC_BASE/lib"
+
+# snappy
+SNAPPY_INCLUDE=" -I $SNAPPY_BASE/include/"
+if test -z $PIC_BUILD; then
+  SNAPPY_LIBS=" $SNAPPY_BASE/lib/libsnappy.a"
+else
+  SNAPPY_LIBS=" $SNAPPY_BASE/lib/libsnappy_pic.a"
+fi
+CFLAGS+=" -DSNAPPY"
+
+if test -z $PIC_BUILD; then
+  # location of zlib headers and libraries
+  ZLIB_INCLUDE=" -I $ZLIB_BASE/include/"
+  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
+  GFLAGS_LIBS=" $GFLAGS_BASE/lib/libgflags.a"
+else
+  GFLAGS_LIBS=" $GFLAGS_BASE/lib/libgflags_pic.a"
+fi
+CFLAGS+=" -DGFLAGS=gflags"
+
+# location of jemalloc
+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
+
+# location of TBB
+TBB_INCLUDE=" -isystem $TBB_BASE/include/"
+if test -z $PIC_BUILD; then
+  TBB_LIBS="$TBB_BASE/lib/libtbb.a"
+else
+  TBB_LIBS="$TBB_BASE/lib/libtbb_pic.a"
+fi
+CFLAGS+=" -DTBB"
+
+# use Intel SSE support for checksum calculations
+export USE_SSE=1
+export PORTABLE=1
+
+BINUTILS="$BINUTILS_BASE/bin"
+AR="$BINUTILS/ar"
+
+DEPS_INCLUDE="$SNAPPY_INCLUDE $ZLIB_INCLUDE $BZIP_INCLUDE $LZ4_INCLUDE $ZSTD_INCLUDE $GFLAGS_INCLUDE $NUMA_INCLUDE $TBB_INCLUDE"
+
+STDLIBS="-L $GCC_BASE/lib64"
+
+CLANG_BIN="$CLANG_BASE/bin"
+CLANG_LIB="$CLANG_BASE/lib"
+CLANG_SRC="$CLANG_BASE/../../src"
+
+CLANG_ANALYZER="$CLANG_BIN/clang++"
+CLANG_SCAN_BUILD="$CLANG_SRC/llvm/tools/clang/tools/scan-build/bin/scan-build"
+
+if [ -z "$USE_CLANG" ]; then
+  # gcc
+  CC="$GCC_BASE/bin/gcc"
+  CXX="$GCC_BASE/bin/g++"
+
+  CFLAGS+=" -B$BINUTILS/gold"
+  CFLAGS+=" -isystem $LIBGCC_INCLUDE"
+  CFLAGS+=" -isystem $GLIBC_INCLUDE"
+  JEMALLOC=1
+else
+  # clang
+  CLANG_INCLUDE="$CLANG_LIB/clang/stable/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++/7.x "
+  CFLAGS+=" -isystem $LIBGCC_BASE/include/c++/7.x/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 "
+  CFLAGS+=" -Wno-expansion-to-defined "
+  CXXFLAGS="-nostdinc++"
+fi
+
+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 $TBB_LIBS"
+EXEC_LDFLAGS+=" -B$BINUTILS/gold"
+EXEC_LDFLAGS+=" -Wl,--dynamic-linker,/usr/local/fbcode/platform007/lib/ld.so"
+EXEC_LDFLAGS+=" $LIBUNWIND"
+EXEC_LDFLAGS+=" -Wl,-rpath=/usr/local/fbcode/platform007/lib"
+# required by libtbb
+EXEC_LDFLAGS+=" -ldl"
+
+PLATFORM_LDFLAGS="$LIBGCC_LIBS $GLIBC_LIBS $STDLIBS -lgcc -lstdc++"
+
+EXEC_LDFLAGS_SHARED="$SNAPPY_LIBS $ZLIB_LIBS $BZIP_LIBS $LZ4_LIBS $ZSTD_LIBS $GFLAGS_LIBS $TBB_LIBS"
+
+VALGRIND_VER="$VALGRIND_BASE/bin/"
+
+# lua not supported because it's on track for deprecation, I think
+LUA_PATH=
+LUA_LIB=
+
+export CC CXX AR CFLAGS CXXFLAGS EXEC_LDFLAGS EXEC_LDFLAGS_SHARED VALGRIND_VER JEMALLOC_LIB JEMALLOC_INCLUDE CLANG_ANALYZER CLANG_SCAN_BUILD LUA_PATH LUA_LIB
@@ -1,53 +0,0 @@
-#!/bin/bash
-#  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.
-
-set -e
-if [ -z "$GIT" ]
-then
-  GIT="git"
-fi
-
-# Print out the colored progress info so that it can be brainlessly
-# distinguished by users.
-function title() {
-  echo -e "\033[1;32m$*\033[0m"
-}
-
-usage="Create new RocksDB version and prepare it for the release process\n"
-usage+="USAGE: ./make_new_version.sh <version> [<remote>]\n"
-usage+="  version: specify a version without '.fb' suffix (e.g. 5.4).\n"
-usage+="  remote: name of the remote to push the branch to (default: origin)."
-
-# -- Pre-check
-if [[ $# < 1 ]]; then
-  echo -e $usage
-  exit 1
-fi
-
-ROCKSDB_VERSION=$1
-
-REMOTE="origin"
-if [[ $# > 1 ]]; then
-  REMOTE=$2
-fi
-
-GIT_BRANCH=`git rev-parse --abbrev-ref HEAD`
-echo $GIT_BRANCH
-
-if [ $GIT_BRANCH != "master" ]; then
-  echo "Error: Current branch is '$GIT_BRANCH', Please switch to master branch."
-  exit 1
-fi
-
-title "Adding new tag for this release ..."
-BRANCH="$ROCKSDB_VERSION.fb"
-$GIT checkout -b $BRANCH
-
-# Setting up the proxy for remote repo access
-title "Pushing new branch to remote repo ..."
-git push $REMOTE --set-upstream $BRANCH
-
-title "Branch $BRANCH is pushed to github;"
@@ -85,8 +85,9 @@ NON_SHM="TMPD=/tmp/rocksdb_test_tmp"
 GCC_481="ROCKSDB_FBCODE_BUILD_WITH_481=1"
 ASAN="COMPILE_WITH_ASAN=1"
 CLANG="USE_CLANG=1"
-LITE="OPT=\"-DROCKSDB_LITE -g\""
-TSAN="COMPILE_WITH_TSAN=1"
+# in gcc-5 there are known problems with TSAN like https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71090.
+# using platform007 gives us gcc-8 or higher which has that bug fixed.
+TSAN="ROCKSDB_FBCODE_BUILD_WITH_PLATFORM007=1 COMPILE_WITH_TSAN=1"
 UBSAN="COMPILE_WITH_UBSAN=1"
 DISABLE_JEMALLOC="DISABLE_JEMALLOC=1"
 HTTP_PROXY="https_proxy=http://fwdproxy.29.prn1:8080 http_proxy=http://fwdproxy.29.prn1:8080 ftp_proxy=http://fwdproxy.29.prn1:8080"
@@ -333,7 +333,7 @@ function RunJobs($Suites, $TestCmds, [int]$ConcurrencyVal)
            $Cases = @{}

            if($Suites.Count -gt 0) {
-              # Will teh first one
+              # Will the first one
              ForEach($e in $Suites.Keys) {
                $exe_name = $e
                $Cases = $Suites[$e]
@@ -52,6 +52,45 @@ function get_lib_base()
  log_variable $__res_var
 }

+###########################################################
+#                platform007 dependencies                 #
+###########################################################
+
+OUTPUT="$BASEDIR/dependencies_platform007.sh"
+
+rm -f "$OUTPUT"
+touch "$OUTPUT"
+
+echo "Writing dependencies to $OUTPUT"
+
+# Compilers locations
+GCC_BASE=`readlink -f $TP2_LATEST/gcc/7.x/centos7-native/*/`
+CLANG_BASE=`readlink -f $TP2_LATEST/llvm-fb/stable/centos7-native/*/`
+
+log_variable GCC_BASE
+log_variable CLANG_BASE
+
+# Libraries locations
+get_lib_base libgcc     7.x     platform007
+get_lib_base glibc      2.26    platform007
+get_lib_base snappy     LATEST  platform007
+get_lib_base zlib       LATEST  platform007
+get_lib_base bzip2      LATEST  platform007
+get_lib_base lz4        LATEST  platform007
+get_lib_base zstd       LATEST  platform007
+get_lib_base gflags     LATEST  platform007
+get_lib_base jemalloc   LATEST  platform007
+get_lib_base numa       LATEST  platform007
+get_lib_base libunwind  LATEST  platform007
+get_lib_base tbb        LATEST  platform007
+
+get_lib_base kernel-headers fb platform007
+get_lib_base binutils   LATEST centos7-native
+get_lib_base valgrind   LATEST platform007
+get_lib_base lua        5.3.4  platform007
+
+git diff $OUTPUT
+
 ###########################################################
 #                   5.x dependencies                      #
 ###########################################################
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root directory).

 #ifndef __STDC_FORMAT_MACROS
 #define __STDC_FORMAT_MACROS
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -1,7 +1,7 @@
 // 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.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root directory).

 #include "cache/lru_cache.h"

@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -179,7 +177,7 @@ Status BuildTable(
    // Finish and check for file errors
    if (s.ok() && !empty) {
      StopWatch sw(env, ioptions.statistics, TABLE_SYNC_MICROS);
-      file_writer->Sync(ioptions.use_fsync);
+      s = file_writer->Sync(ioptions.use_fsync);
    }
    if (s.ok() && !empty) {
      s = file_writer->Close();
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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.
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -1374,23 +1372,24 @@ void rocksdb_writebatch_put_log_data(
  b->rep.PutLogData(Slice(blob, len));
 }

+class H : public WriteBatch::Handler {
+ public:
+  void* state_;
+  void (*put_)(void*, const char* k, size_t klen, const char* v, size_t vlen);
+  void (*deleted_)(void*, const char* k, size_t klen);
+  virtual void Put(const Slice& key, const Slice& value) override {
+    (*put_)(state_, key.data(), key.size(), value.data(), value.size());
+  }
+  virtual void Delete(const Slice& key) override {
+    (*deleted_)(state_, key.data(), key.size());
+  }
+};
+
 void rocksdb_writebatch_iterate(
    rocksdb_writebatch_t* b,
    void* state,
    void (*put)(void*, const char* k, size_t klen, const char* v, size_t vlen),
    void (*deleted)(void*, const char* k, size_t klen)) {
-  class H : public WriteBatch::Handler {
-   public:
-    void* state_;
-    void (*put_)(void*, const char* k, size_t klen, const char* v, size_t vlen);
-    void (*deleted_)(void*, const char* k, size_t klen);
-    virtual void Put(const Slice& key, const Slice& value) override {
-      (*put_)(state_, key.data(), key.size(), value.data(), value.size());
-    }
-    virtual void Delete(const Slice& key) override {
-      (*deleted_)(state_, key.data(), key.size());
-    }
-  };
  H handler;
  handler.state_ = state;
  handler.put_ = put;
@@ -1635,18 +1634,6 @@ void rocksdb_writebatch_wi_iterate(
    void* state,
    void (*put)(void*, const char* k, size_t klen, const char* v, size_t vlen),
    void (*deleted)(void*, const char* k, size_t klen)) {
-  class H : public WriteBatch::Handler {
-   public:
-    void* state_;
-    void (*put_)(void*, const char* k, size_t klen, const char* v, size_t vlen);
-    void (*deleted_)(void*, const char* k, size_t klen);
-    virtual void Put(const Slice& key, const Slice& value) override {
-      (*put_)(state_, key.data(), key.size(), value.data(), value.size());
-    }
-    virtual void Delete(const Slice& key) override {
-      (*deleted_)(state_, key.data(), key.size());
-    }
-  };
  H handler;
  handler.state_ = state;
  handler.put_ = put;
@@ -2852,7 +2839,26 @@ void rocksdb_sstfilewriter_open(rocksdb_sstfilewriter_t* writer,
 void rocksdb_sstfilewriter_add(rocksdb_sstfilewriter_t* writer, const char* key,
                               size_t keylen, const char* val, size_t vallen,
                               char** errptr) {
-  SaveError(errptr, writer->rep->Add(Slice(key, keylen), Slice(val, vallen)));
+  SaveError(errptr, writer->rep->Put(Slice(key, keylen), Slice(val, vallen)));
+}
+
+void rocksdb_sstfilewriter_put(rocksdb_sstfilewriter_t* writer, const char* key,
+                               size_t keylen, const char* val, size_t vallen,
+                               char** errptr) {
+  SaveError(errptr, writer->rep->Put(Slice(key, keylen), Slice(val, vallen)));
+}
+
+void rocksdb_sstfilewriter_merge(rocksdb_sstfilewriter_t* writer,
+                                 const char* key, size_t keylen,
+                                 const char* val, size_t vallen,
+                                 char** errptr) {
+  SaveError(errptr, writer->rep->Merge(Slice(key, keylen), Slice(val, vallen)));
+}
+
+void rocksdb_sstfilewriter_delete(rocksdb_sstfilewriter_t* writer,
+                                  const char* key, size_t keylen,
+                                  char** errptr) {
+  SaveError(errptr, writer->rep->Delete(Slice(key, keylen)));
 }

 void rocksdb_sstfilewriter_finish(rocksdb_sstfilewriter_t* writer,
@@ -2949,20 +2955,21 @@ void rocksdb_slicetransform_destroy(rocksdb_slicetransform_t* st) {
  delete st;
 }

+struct Wrapper : public rocksdb_slicetransform_t {
+  const SliceTransform* rep_;
+  ~Wrapper() { delete rep_; }
+  const char* Name() const override { return rep_->Name(); }
+  Slice Transform(const Slice& src) const override {
+    return rep_->Transform(src);
+  }
+  bool InDomain(const Slice& src) const override {
+    return rep_->InDomain(src);
+  }
+  bool InRange(const Slice& src) const override { return rep_->InRange(src); }
+  static void DoNothing(void*) { }
+};
+
 rocksdb_slicetransform_t* rocksdb_slicetransform_create_fixed_prefix(size_t prefixLen) {
-  struct Wrapper : public rocksdb_slicetransform_t {
-    const SliceTransform* rep_;
-    ~Wrapper() { delete rep_; }
-    const char* Name() const override { return rep_->Name(); }
-    Slice Transform(const Slice& src) const override {
-      return rep_->Transform(src);
-    }
-    bool InDomain(const Slice& src) const override {
-      return rep_->InDomain(src);
-    }
-    bool InRange(const Slice& src) const override { return rep_->InRange(src); }
-    static void DoNothing(void*) { }
-  };
  Wrapper* wrapper = new Wrapper;
  wrapper->rep_ = rocksdb::NewFixedPrefixTransform(prefixLen);
  wrapper->state_ = nullptr;
@@ -2971,19 +2978,6 @@ rocksdb_slicetransform_t* rocksdb_slicetransform_create_fixed_prefix(size_t pref
 }

 rocksdb_slicetransform_t* rocksdb_slicetransform_create_noop() {
-  struct Wrapper : public rocksdb_slicetransform_t {
-    const SliceTransform* rep_;
-    ~Wrapper() { delete rep_; }
-    const char* Name() const override { return rep_->Name(); }
-    Slice Transform(const Slice& src) const override {
-      return rep_->Transform(src);
-    }
-    bool InDomain(const Slice& src) const override {
-      return rep_->InDomain(src);
-    }
-    bool InRange(const Slice& src) const override { return rep_->InRange(src); }
-    static void DoNothing(void*) { }
-  };
  Wrapper* wrapper = new Wrapper;
  wrapper->rep_ = rocksdb::NewNoopTransform();
  wrapper->state_ = nullptr;
@@ -569,11 +569,11 @@ int main(int argc, char** argv) {
    unlink(sstfilename);
    rocksdb_sstfilewriter_open(writer, sstfilename, &err);
    CheckNoError(err);
-    rocksdb_sstfilewriter_add(writer, "sstk1", 5, "v1", 2, &err);
+    rocksdb_sstfilewriter_put(writer, "sstk1", 5, "v1", 2, &err);
    CheckNoError(err);
-    rocksdb_sstfilewriter_add(writer, "sstk2", 5, "v2", 2, &err);
+    rocksdb_sstfilewriter_put(writer, "sstk2", 5, "v2", 2, &err);
    CheckNoError(err);
-    rocksdb_sstfilewriter_add(writer, "sstk3", 5, "v3", 2, &err);
+    rocksdb_sstfilewriter_put(writer, "sstk3", 5, "v3", 2, &err);
    CheckNoError(err);
    rocksdb_sstfilewriter_finish(writer, &err);
    CheckNoError(err);
@@ -590,11 +590,11 @@ int main(int argc, char** argv) {
    unlink(sstfilename);
    rocksdb_sstfilewriter_open(writer, sstfilename, &err);
    CheckNoError(err);
-    rocksdb_sstfilewriter_add(writer, "sstk2", 5, "v4", 2, &err);
+    rocksdb_sstfilewriter_put(writer, "sstk2", 5, "v4", 2, &err);
    CheckNoError(err);
-    rocksdb_sstfilewriter_add(writer, "sstk22", 6, "v5", 2, &err);
+    rocksdb_sstfilewriter_put(writer, "sstk22", 6, "v5", 2, &err);
    CheckNoError(err);
-    rocksdb_sstfilewriter_add(writer, "sstk3", 5, "v6", 2, &err);
+    rocksdb_sstfilewriter_put(writer, "sstk3", 5, "v6", 2, &err);
    CheckNoError(err);
    rocksdb_sstfilewriter_finish(writer, &err);
    CheckNoError(err);
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -349,6 +347,7 @@ ColumnFamilyData::ColumnFamilyData(
      dummy_versions_(_dummy_versions),
      current_(nullptr),
      refs_(0),
+      initialized_(false),
      dropped_(false),
      internal_comparator_(cf_options.comparator),
      initial_cf_options_(SanitizeOptions(db_options, cf_options)),
@@ -551,7 +550,7 @@ std::unique_ptr<WriteControllerToken> SetupDelay(
    // If DB just falled into the stop condition, we need to further reduce
    // the write rate to avoid the stop condition.
    if (penalize_stop) {
-      // Penalize the near stop or stop condition by more agressive slowdown.
+      // Penalize the near stop or stop condition by more aggressive slowdown.
      // This is to provide the long term slowdown increase signal.
      // The penalty is more than the reward of recovering to the normal
      // condition.
@@ -729,7 +728,7 @@ void ColumnFamilyData::RecalculateWriteStallConditions(
              mutable_cf_options.level0_slowdown_writes_trigger)) {
        write_controller_token_ =
            write_controller->GetCompactionPressureToken();
-        ROCKS_LOG_WARN(
+        ROCKS_LOG_INFO(
            ioptions_.info_log,
            "[%s] Increasing compaction threads because we have %d level-0 "
            "files ",
@@ -743,7 +742,7 @@ void ColumnFamilyData::RecalculateWriteStallConditions(
        write_controller_token_ =
            write_controller->GetCompactionPressureToken();
        if (mutable_cf_options.soft_pending_compaction_bytes_limit > 0) {
-          ROCKS_LOG_WARN(
+          ROCKS_LOG_INFO(
              ioptions_.info_log,
              "[%s] Increasing compaction threads because of estimated pending "
              "compaction "
@@ -760,6 +759,12 @@ void ColumnFamilyData::RecalculateWriteStallConditions(
        uint64_t write_rate = write_controller->delayed_write_rate();
        write_controller->set_delayed_write_rate(static_cast<uint64_t>(
            static_cast<double>(write_rate) * kDelayRecoverSlowdownRatio));
+        // Set the low pri limit to be 1/4 the delayed write rate.
+        // Note we don't reset this value even after delay condition is relased.
+        // Low-pri rate will continue to apply if there is a compaction
+        // pressure.
+        write_controller->low_pri_rate_limiter()->SetBytesPerSecond(write_rate /
+                                                                    4);
      }
    }
    prev_compaction_needed_bytes_ = compaction_needed_bytes;
@@ -785,7 +790,7 @@ uint64_t ColumnFamilyData::GetTotalSstFilesSize() const {
 MemTable* ColumnFamilyData::ConstructNewMemtable(
    const MutableCFOptions& mutable_cf_options, SequenceNumber earliest_seq) {
  return new MemTable(internal_comparator_, ioptions_, mutable_cf_options,
-                      write_buffer_manager_, earliest_seq);
+                      write_buffer_manager_, earliest_seq, id_);
 }

 void ColumnFamilyData::CreateNewMemtable(
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -335,6 +333,10 @@ class ColumnFamilyData {
  void RecalculateWriteStallConditions(
      const MutableCFOptions& mutable_cf_options);

+  void set_initialized() { initialized_.store(true); }
+
+  bool initialized() const { return initialized_.load(); }
+
 private:
  friend class ColumnFamilySet;
  ColumnFamilyData(uint32_t id, const std::string& name,
@@ -351,6 +353,7 @@ class ColumnFamilyData {
  Version* current_;         // == dummy_versions->prev_

  std::atomic<int> refs_;      // outstanding references to ColumnFamilyData
+  std::atomic<bool> initialized_;
  bool dropped_;               // true if client dropped it

  const InternalKeyComparator internal_comparator_;
@@ -1,8 +1,7 @@
 //  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.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -521,6 +520,30 @@ TEST_F(ColumnFamilyTest, DontReuseColumnFamilyID) {
  }
 }

+#ifndef ROCKSDB_LITE
+TEST_F(ColumnFamilyTest, CreateCFRaceWithGetAggProperty) {
+  Open();
+
+  rocksdb::SyncPoint::GetInstance()->LoadDependency(
+      {{"DBImpl::WriteOptionsFile:1",
+        "ColumnFamilyTest.CreateCFRaceWithGetAggProperty:1"},
+       {"ColumnFamilyTest.CreateCFRaceWithGetAggProperty:2",
+        "DBImpl::WriteOptionsFile:2"}});
+  rocksdb::SyncPoint::GetInstance()->EnableProcessing();
+
+  rocksdb::port::Thread thread([&] { CreateColumnFamilies({"one"}); });
+
+  TEST_SYNC_POINT("ColumnFamilyTest.CreateCFRaceWithGetAggProperty:1");
+  uint64_t pv;
+  db_->GetAggregatedIntProperty(DB::Properties::kEstimateTableReadersMem, &pv);
+  TEST_SYNC_POINT("ColumnFamilyTest.CreateCFRaceWithGetAggProperty:2");
+
+  thread.join();
+
+  rocksdb::SyncPoint::GetInstance()->DisableProcessing();
+}
+#endif  // !ROCKSDB_LITE
+
 class FlushEmptyCFTestWithParam : public ColumnFamilyTest,
                                  public testing::WithParamInterface<bool> {
 public:
@@ -1380,7 +1403,6 @@ TEST_F(ColumnFamilyTest, AutomaticAndManualCompactions) {
  ColumnFamilyOptions default_cf, one, two;
  db_options_.max_open_files = 20;  // only 10 files in file cache
  db_options_.max_background_compactions = 3;
-  db_options_.base_background_compactions = 3;

  default_cf.compaction_style = kCompactionStyleLevel;
  default_cf.num_levels = 3;
@@ -1404,6 +1426,9 @@ TEST_F(ColumnFamilyTest, AutomaticAndManualCompactions) {
  two.write_buffer_size = 100000;

  Reopen({default_cf, one, two});
+  // make sure all background compaction jobs can be scheduled
+  auto stop_token =
+      dbfull()->TEST_write_controler().GetCompactionPressureToken();

  bool cf_1_1 = true;
  rocksdb::SyncPoint::GetInstance()->LoadDependency(
@@ -1463,7 +1488,6 @@ TEST_F(ColumnFamilyTest, AutomaticAndManualCompactions) {
    ASSERT_NE("NOT_FOUND", Get(1, *key_iter));
    key_iter++;
  }
-  Close();
 }

 TEST_F(ColumnFamilyTest, ManualAndAutomaticCompactions) {
@@ -1472,7 +1496,6 @@ TEST_F(ColumnFamilyTest, ManualAndAutomaticCompactions) {
  ColumnFamilyOptions default_cf, one, two;
  db_options_.max_open_files = 20;  // only 10 files in file cache
  db_options_.max_background_compactions = 3;
-  db_options_.base_background_compactions = 3;

  default_cf.compaction_style = kCompactionStyleLevel;
  default_cf.num_levels = 3;
@@ -1496,6 +1519,9 @@ TEST_F(ColumnFamilyTest, ManualAndAutomaticCompactions) {
  two.write_buffer_size = 100000;

  Reopen({default_cf, one, two});
+  // make sure all background compaction jobs can be scheduled
+  auto stop_token =
+      dbfull()->TEST_write_controler().GetCompactionPressureToken();

  // SETUP column family "one" -- universal style
  for (int i = 0; i < one.level0_file_num_compaction_trigger - 2; ++i) {
@@ -1558,7 +1584,6 @@ TEST_F(ColumnFamilyTest, ManualAndAutomaticCompactions) {
    ASSERT_NE("NOT_FOUND", Get(1, *key_iter));
    key_iter++;
  }
-  Close();
 }

 TEST_F(ColumnFamilyTest, SameCFManualManualCompactions) {
@@ -1567,7 +1592,6 @@ TEST_F(ColumnFamilyTest, SameCFManualManualCompactions) {
  ColumnFamilyOptions default_cf, one;
  db_options_.max_open_files = 20;  // only 10 files in file cache
  db_options_.max_background_compactions = 3;
-  db_options_.base_background_compactions = 3;

  default_cf.compaction_style = kCompactionStyleLevel;
  default_cf.num_levels = 3;
@@ -1586,6 +1610,9 @@ TEST_F(ColumnFamilyTest, SameCFManualManualCompactions) {
  one.write_buffer_size = 120000;

  Reopen({default_cf, one});
+  // make sure all background compaction jobs can be scheduled
+  auto stop_token =
+      dbfull()->TEST_write_controler().GetCompactionPressureToken();

  // SETUP column family "one" -- universal style
  for (int i = 0; i < one.level0_file_num_compaction_trigger - 2; ++i) {
@@ -1656,7 +1683,6 @@ TEST_F(ColumnFamilyTest, SameCFManualManualCompactions) {
    ASSERT_NE("NOT_FOUND", Get(1, *key_iter));
    key_iter++;
  }
-  Close();
 }

 TEST_F(ColumnFamilyTest, SameCFManualAutomaticCompactions) {
@@ -1665,7 +1691,6 @@ TEST_F(ColumnFamilyTest, SameCFManualAutomaticCompactions) {
  ColumnFamilyOptions default_cf, one;
  db_options_.max_open_files = 20;  // only 10 files in file cache
  db_options_.max_background_compactions = 3;
-  db_options_.base_background_compactions = 3;

  default_cf.compaction_style = kCompactionStyleLevel;
  default_cf.num_levels = 3;
@@ -1684,6 +1709,9 @@ TEST_F(ColumnFamilyTest, SameCFManualAutomaticCompactions) {
  one.write_buffer_size = 120000;

  Reopen({default_cf, one});
+  // make sure all background compaction jobs can be scheduled
+  auto stop_token =
+      dbfull()->TEST_write_controler().GetCompactionPressureToken();

  // SETUP column family "one" -- universal style
  for (int i = 0; i < one.level0_file_num_compaction_trigger - 2; ++i) {
@@ -1745,7 +1773,6 @@ TEST_F(ColumnFamilyTest, SameCFManualAutomaticCompactions) {
    ASSERT_NE("NOT_FOUND", Get(1, *key_iter));
    key_iter++;
  }
-  Close();
 }

 TEST_F(ColumnFamilyTest, SameCFManualAutomaticCompactionsLevel) {
@@ -1754,7 +1781,6 @@ TEST_F(ColumnFamilyTest, SameCFManualAutomaticCompactionsLevel) {
  ColumnFamilyOptions default_cf, one;
  db_options_.max_open_files = 20;  // only 10 files in file cache
  db_options_.max_background_compactions = 3;
-  db_options_.base_background_compactions = 3;

  default_cf.compaction_style = kCompactionStyleLevel;
  default_cf.num_levels = 3;
@@ -1773,6 +1799,9 @@ TEST_F(ColumnFamilyTest, SameCFManualAutomaticCompactionsLevel) {
  one.write_buffer_size = 120000;

  Reopen({default_cf, one});
+  // make sure all background compaction jobs can be scheduled
+  auto stop_token =
+      dbfull()->TEST_write_controler().GetCompactionPressureToken();

  // SETUP column family "one" -- level style
  for (int i = 0; i < one.level0_file_num_compaction_trigger - 2; ++i) {
@@ -1834,7 +1863,6 @@ TEST_F(ColumnFamilyTest, SameCFManualAutomaticCompactionsLevel) {
    ASSERT_NE("NOT_FOUND", Get(1, *key_iter));
    key_iter++;
  }
-  Close();
 }

 // This test checks for automatic getting a conflict if there is a
@@ -1850,7 +1878,6 @@ TEST_F(ColumnFamilyTest, SameCFManualAutomaticConflict) {
  ColumnFamilyOptions default_cf, one;
  db_options_.max_open_files = 20;  // only 10 files in file cache
  db_options_.max_background_compactions = 3;
-  db_options_.base_background_compactions = 3;

  default_cf.compaction_style = kCompactionStyleLevel;
  default_cf.num_levels = 3;
@@ -1869,6 +1896,9 @@ TEST_F(ColumnFamilyTest, SameCFManualAutomaticConflict) {
  one.write_buffer_size = 120000;

  Reopen({default_cf, one});
+  // make sure all background compaction jobs can be scheduled
+  auto stop_token =
+      dbfull()->TEST_write_controler().GetCompactionPressureToken();

  // SETUP column family "one" -- universal style
  for (int i = 0; i < one.level0_file_num_compaction_trigger - 2; ++i) {
@@ -1953,8 +1983,6 @@ TEST_F(ColumnFamilyTest, SameCFManualAutomaticConflict) {
    ASSERT_NE("NOT_FOUND", Get(1, *key_iter));
    key_iter++;
  }
-
-  Close();
 }

 // In this test, we generate enough files to trigger automatic compactions.
@@ -1969,7 +1997,6 @@ TEST_F(ColumnFamilyTest, SameCFAutomaticManualCompactions) {
  ColumnFamilyOptions default_cf, one;
  db_options_.max_open_files = 20;  // only 10 files in file cache
  db_options_.max_background_compactions = 3;
-  db_options_.base_background_compactions = 3;

  default_cf.compaction_style = kCompactionStyleLevel;
  default_cf.num_levels = 3;
@@ -1988,6 +2015,9 @@ TEST_F(ColumnFamilyTest, SameCFAutomaticManualCompactions) {
  one.write_buffer_size = 120000;

  Reopen({default_cf, one});
+  // make sure all background compaction jobs can be scheduled
+  auto stop_token =
+      dbfull()->TEST_write_controler().GetCompactionPressureToken();

  bool cf_1_1 = true;
  bool cf_1_2 = true;
@@ -2042,8 +2072,6 @@ TEST_F(ColumnFamilyTest, SameCFAutomaticManualCompactions) {
    ASSERT_NE("NOT_FOUND", Get(1, *key_iter));
    key_iter++;
  }
-
-  Close();
 }
 #endif  // !ROCKSDB_LITE

@@ -2496,7 +2524,6 @@ TEST_F(ColumnFamilyTest, CreateAndDropRace) {
 TEST_F(ColumnFamilyTest, WriteStallSingleColumnFamily) {
  const uint64_t kBaseRate = 800000u;
  db_options_.delayed_write_rate = kBaseRate;
-  db_options_.base_background_compactions = 2;
  db_options_.max_background_compactions = 6;

  Open({"default"});
@@ -2677,7 +2704,6 @@ TEST_F(ColumnFamilyTest, WriteStallSingleColumnFamily) {
 }

 TEST_F(ColumnFamilyTest, CompactionSpeedupSingleColumnFamily) {
-  db_options_.base_background_compactions = 2;
  db_options_.max_background_compactions = 6;
  Open({"default"});
  ColumnFamilyData* cfd =
@@ -2697,7 +2723,7 @@ TEST_F(ColumnFamilyTest, CompactionSpeedupSingleColumnFamily) {

  vstorage->TEST_set_estimated_compaction_needed_bytes(40);
  cfd->RecalculateWriteStallConditions(mutable_cf_options);
-  ASSERT_EQ(2, dbfull()->TEST_BGCompactionsAllowed());
+  ASSERT_EQ(1, dbfull()->TEST_BGCompactionsAllowed());

  vstorage->TEST_set_estimated_compaction_needed_bytes(50);
  cfd->RecalculateWriteStallConditions(mutable_cf_options);
@@ -2709,11 +2735,11 @@ TEST_F(ColumnFamilyTest, CompactionSpeedupSingleColumnFamily) {

  vstorage->TEST_set_estimated_compaction_needed_bytes(45);
  cfd->RecalculateWriteStallConditions(mutable_cf_options);
-  ASSERT_EQ(2, dbfull()->TEST_BGCompactionsAllowed());
+  ASSERT_EQ(1, dbfull()->TEST_BGCompactionsAllowed());

  vstorage->set_l0_delay_trigger_count(7);
  cfd->RecalculateWriteStallConditions(mutable_cf_options);
-  ASSERT_EQ(2, dbfull()->TEST_BGCompactionsAllowed());
+  ASSERT_EQ(1, dbfull()->TEST_BGCompactionsAllowed());

  vstorage->set_l0_delay_trigger_count(9);
  cfd->RecalculateWriteStallConditions(mutable_cf_options);
@@ -2721,7 +2747,7 @@ TEST_F(ColumnFamilyTest, CompactionSpeedupSingleColumnFamily) {

  vstorage->set_l0_delay_trigger_count(6);
  cfd->RecalculateWriteStallConditions(mutable_cf_options);
-  ASSERT_EQ(2, dbfull()->TEST_BGCompactionsAllowed());
+  ASSERT_EQ(1, dbfull()->TEST_BGCompactionsAllowed());

  // Speed up threshold = min(4 * 2, 4 + (12 - 4)/4) = 6
  mutable_cf_options.level0_file_num_compaction_trigger = 4;
@@ -2730,7 +2756,7 @@ TEST_F(ColumnFamilyTest, CompactionSpeedupSingleColumnFamily) {

  vstorage->set_l0_delay_trigger_count(5);
  cfd->RecalculateWriteStallConditions(mutable_cf_options);
-  ASSERT_EQ(2, dbfull()->TEST_BGCompactionsAllowed());
+  ASSERT_EQ(1, dbfull()->TEST_BGCompactionsAllowed());

  vstorage->set_l0_delay_trigger_count(7);
  cfd->RecalculateWriteStallConditions(mutable_cf_options);
@@ -2738,7 +2764,7 @@ TEST_F(ColumnFamilyTest, CompactionSpeedupSingleColumnFamily) {

  vstorage->set_l0_delay_trigger_count(3);
  cfd->RecalculateWriteStallConditions(mutable_cf_options);
-  ASSERT_EQ(2, dbfull()->TEST_BGCompactionsAllowed());
+  ASSERT_EQ(1, dbfull()->TEST_BGCompactionsAllowed());
 }

 TEST_F(ColumnFamilyTest, WriteStallTwoColumnFamilies) {
@@ -2817,7 +2843,6 @@ TEST_F(ColumnFamilyTest, WriteStallTwoColumnFamilies) {
 }

 TEST_F(ColumnFamilyTest, CompactionSpeedupTwoColumnFamilies) {
-  db_options_.base_background_compactions = 2;
  db_options_.max_background_compactions = 6;
  column_family_options_.soft_pending_compaction_bytes_limit = 200;
  column_family_options_.hard_pending_compaction_bytes_limit = 2000;
@@ -2845,11 +2870,11 @@ TEST_F(ColumnFamilyTest, CompactionSpeedupTwoColumnFamilies) {

  vstorage->TEST_set_estimated_compaction_needed_bytes(40);
  cfd->RecalculateWriteStallConditions(mutable_cf_options);
-  ASSERT_EQ(2, dbfull()->TEST_BGCompactionsAllowed());
+  ASSERT_EQ(1, dbfull()->TEST_BGCompactionsAllowed());

  vstorage->TEST_set_estimated_compaction_needed_bytes(60);
  cfd1->RecalculateWriteStallConditions(mutable_cf_options);
-  ASSERT_EQ(2, dbfull()->TEST_BGCompactionsAllowed());
+  ASSERT_EQ(1, dbfull()->TEST_BGCompactionsAllowed());
  cfd->RecalculateWriteStallConditions(mutable_cf_options);
  ASSERT_EQ(6, dbfull()->TEST_BGCompactionsAllowed());

@@ -2867,7 +2892,7 @@ TEST_F(ColumnFamilyTest, CompactionSpeedupTwoColumnFamilies) {

  vstorage1->TEST_set_estimated_compaction_needed_bytes(3);
  cfd1->RecalculateWriteStallConditions(mutable_cf_options);
-  ASSERT_EQ(2, dbfull()->TEST_BGCompactionsAllowed());
+  ASSERT_EQ(1, dbfull()->TEST_BGCompactionsAllowed());

  vstorage->set_l0_delay_trigger_count(9);
  cfd->RecalculateWriteStallConditions(mutable_cf_options);
@@ -2879,7 +2904,7 @@ TEST_F(ColumnFamilyTest, CompactionSpeedupTwoColumnFamilies) {

  vstorage->set_l0_delay_trigger_count(0);
  cfd->RecalculateWriteStallConditions(mutable_cf_options);
-  ASSERT_EQ(2, dbfull()->TEST_BGCompactionsAllowed());
+  ASSERT_EQ(1, dbfull()->TEST_BGCompactionsAllowed());
 }

 #ifndef ROCKSDB_LITE
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root directory).

 #ifndef ROCKSDB_LITE

@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root directory).

 #ifndef ROCKSDB_LITE
 #include "db/compacted_db_impl.h"
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root directory).

 #pragma once
 #ifndef ROCKSDB_LITE
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -289,6 +287,10 @@ bool Compaction::KeyNotExistsBeyondOutputLevel(
  if (cfd_->ioptions()->compaction_style == kCompactionStyleUniversal) {
    return bottommost_level_;
  }
+  if (cfd_->ioptions()->compaction_style == kCompactionStyleLevel &&
+      output_level_ == 0) {
+    return false;
+  }
  // 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++) {
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -1,9 +1,7 @@
 //  Copyright (c) 2016-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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root directory).

 #pragma once

@@ -1,11 +1,7 @@
-// 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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root directory).

 #include "db/compaction_iterator.h"
 #include "rocksdb/listener.h"
@@ -71,7 +67,9 @@ CompactionIterator::CompactionIterator(
      range_del_agg_(range_del_agg),
      compaction_(std::move(compaction)),
      compaction_filter_(compaction_filter),
+#ifndef ROCKSDB_LITE
      compaction_listener_(compaction_listener),
+#endif  // ROCKSDB_LITE
      shutting_down_(shutting_down),
      ignore_snapshots_(false),
      merge_out_iter_(merge_helper_) {
@@ -1,11 +1,7 @@
-// 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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root directory).
 #pragma once

 #include <algorithm>
@@ -134,7 +130,9 @@ class CompactionIterator {
  RangeDelAggregator* range_del_agg_;
  std::unique_ptr<CompactionProxy> compaction_;
  const CompactionFilter* compaction_filter_;
+#ifndef ROCKSDB_LITE
  CompactionEventListener* compaction_listener_;
+#endif  // ROCKSDB_LITE
  const std::atomic<bool>* shutting_down_;
  bool bottommost_level_;
  bool valid_ = false;
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root directory).

 #include "db/compaction_iterator.h"

@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -656,7 +654,6 @@ TEST_P(CompactionJobStatsTest, CompactionJobStatsTest) {
  Options options;
  options.listeners.emplace_back(stats_checker);
  options.create_if_missing = true;
-  options.max_background_flushes = 0;
  // just enough setting to hold off auto-compaction.
  options.level0_file_num_compaction_trigger = kTestScale + 1;
  options.num_levels = 3;
@@ -878,7 +875,6 @@ TEST_P(CompactionJobStatsTest, DeletionStatsTest) {
  Options options;
  options.listeners.emplace_back(stats_checker);
  options.create_if_missing = true;
-  options.max_background_flushes = 0;
  options.level0_file_num_compaction_trigger = kTestScale+1;
  options.num_levels = 3;
  options.compression = kNoCompression;
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root directory).

 #ifndef ROCKSDB_LITE

@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root directory).

 #include "db/compaction_picker.h"
 #include <limits>
@@ -952,7 +950,7 @@ TEST_F(CompactionPickerTest, NotScheduleL1IfL0WithHigherPri3) {
 TEST_F(CompactionPickerTest, EstimateCompactionBytesNeeded1) {
  int num_levels = ioptions_.num_levels;
  ioptions_.level_compaction_dynamic_level_bytes = false;
-  mutable_cf_options_.level0_file_num_compaction_trigger = 3;
+  mutable_cf_options_.level0_file_num_compaction_trigger = 4;
  mutable_cf_options_.max_bytes_for_level_base = 1000;
  mutable_cf_options_.max_bytes_for_level_multiplier = 10;
  NewVersionStorage(num_levels, kCompactionStyleLevel);
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -621,7 +619,7 @@ Compaction* UniversalCompactionPicker::PickCompactionToReduceSizeAmp(
    const std::string& cf_name, const MutableCFOptions& mutable_cf_options,
    VersionStorageInfo* vstorage, double score,
    const std::vector<SortedRun>& sorted_runs, LogBuffer* log_buffer) {
-  // percentage flexibilty while reducing size amplification
+  // percentage flexibility while reducing size amplification
  uint64_t ratio =
      ioptions_.compaction_options_universal.max_size_amplification_percent;

@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -1,11 +1,7 @@
-// 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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root directory).
 #include <map>
 #include <string>

@@ -1,13 +1,8 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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

@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root directory).

 #ifndef ROCKSDB_LITE

@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -366,9 +364,9 @@ TEST_F(DBBasicTest, FLUSH) {
    ASSERT_OK(Flush(1));
    ASSERT_OK(dbfull()->Put(writeOpt, handles_[1], "bar", "v1"));

-    perf_context.Reset();
+    get_perf_context()->Reset();
    Get(1, "foo");
-    ASSERT_TRUE((int)perf_context.get_from_output_files_time > 0);
+    ASSERT_TRUE((int)get_perf_context()->get_from_output_files_time > 0);

    ReopenWithColumnFamilies({"default", "pikachu"}, CurrentOptions());
    ASSERT_EQ("v1", Get(1, "foo"));
@@ -381,9 +379,9 @@ TEST_F(DBBasicTest, FLUSH) {

    ReopenWithColumnFamilies({"default", "pikachu"}, CurrentOptions());
    ASSERT_EQ("v2", Get(1, "bar"));
-    perf_context.Reset();
+    get_perf_context()->Reset();
    ASSERT_EQ("v2", Get(1, "foo"));
-    ASSERT_TRUE((int)perf_context.get_from_output_files_time > 0);
+    ASSERT_TRUE((int)get_perf_context()->get_from_output_files_time > 0);

    writeOpt.disableWAL = false;
    ASSERT_OK(dbfull()->Put(writeOpt, handles_[1], "bar", "v3"));
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -688,12 +686,12 @@ class BloomStatsTestWithParam
    }
    options_.env = env_;

-    perf_context.Reset();
+    get_perf_context()->Reset();
    DestroyAndReopen(options_);
  }

  ~BloomStatsTestWithParam() {
-    perf_context.Reset();
+    get_perf_context()->Reset();
    Destroy(options_);
  }

@@ -726,33 +724,33 @@ TEST_P(BloomStatsTestWithParam, BloomStatsTest) {

  // check memtable bloom stats
  ASSERT_EQ(value1, Get(key1));
-  ASSERT_EQ(1, perf_context.bloom_memtable_hit_count);
+  ASSERT_EQ(1, get_perf_context()->bloom_memtable_hit_count);
  ASSERT_EQ(value3, Get(key3));
-  ASSERT_EQ(2, perf_context.bloom_memtable_hit_count);
-  ASSERT_EQ(0, perf_context.bloom_memtable_miss_count);
+  ASSERT_EQ(2, get_perf_context()->bloom_memtable_hit_count);
+  ASSERT_EQ(0, get_perf_context()->bloom_memtable_miss_count);

  ASSERT_EQ("NOT_FOUND", Get(key2));
-  ASSERT_EQ(1, perf_context.bloom_memtable_miss_count);
-  ASSERT_EQ(2, perf_context.bloom_memtable_hit_count);
+  ASSERT_EQ(1, get_perf_context()->bloom_memtable_miss_count);
+  ASSERT_EQ(2, get_perf_context()->bloom_memtable_hit_count);

  // sanity checks
-  ASSERT_EQ(0, perf_context.bloom_sst_hit_count);
-  ASSERT_EQ(0, perf_context.bloom_sst_miss_count);
+  ASSERT_EQ(0, get_perf_context()->bloom_sst_hit_count);
+  ASSERT_EQ(0, get_perf_context()->bloom_sst_miss_count);

  Flush();

  // sanity checks
-  ASSERT_EQ(0, perf_context.bloom_sst_hit_count);
-  ASSERT_EQ(0, perf_context.bloom_sst_miss_count);
+  ASSERT_EQ(0, get_perf_context()->bloom_sst_hit_count);
+  ASSERT_EQ(0, get_perf_context()->bloom_sst_miss_count);

  // check SST bloom stats
  ASSERT_EQ(value1, Get(key1));
-  ASSERT_EQ(1, perf_context.bloom_sst_hit_count);
+  ASSERT_EQ(1, get_perf_context()->bloom_sst_hit_count);
  ASSERT_EQ(value3, Get(key3));
-  ASSERT_EQ(2, perf_context.bloom_sst_hit_count);
+  ASSERT_EQ(2, get_perf_context()->bloom_sst_hit_count);

  ASSERT_EQ("NOT_FOUND", Get(key2));
-  ASSERT_EQ(1, perf_context.bloom_sst_miss_count);
+  ASSERT_EQ(1, get_perf_context()->bloom_sst_miss_count);
 }

 // Same scenario as in BloomStatsTest but using an iterator
@@ -773,21 +771,21 @@ TEST_P(BloomStatsTestWithParam, BloomStatsTestWithIter) {
  ASSERT_OK(iter->status());
  ASSERT_TRUE(iter->Valid());
  ASSERT_EQ(value1, iter->value().ToString());
-  ASSERT_EQ(1, perf_context.bloom_memtable_hit_count);
-  ASSERT_EQ(0, perf_context.bloom_memtable_miss_count);
+  ASSERT_EQ(1, get_perf_context()->bloom_memtable_hit_count);
+  ASSERT_EQ(0, get_perf_context()->bloom_memtable_miss_count);

  iter->Seek(key3);
  ASSERT_OK(iter->status());
  ASSERT_TRUE(iter->Valid());
  ASSERT_EQ(value3, iter->value().ToString());
-  ASSERT_EQ(2, perf_context.bloom_memtable_hit_count);
-  ASSERT_EQ(0, perf_context.bloom_memtable_miss_count);
+  ASSERT_EQ(2, get_perf_context()->bloom_memtable_hit_count);
+  ASSERT_EQ(0, get_perf_context()->bloom_memtable_miss_count);

  iter->Seek(key2);
  ASSERT_OK(iter->status());
  ASSERT_TRUE(!iter->Valid());
-  ASSERT_EQ(1, perf_context.bloom_memtable_miss_count);
-  ASSERT_EQ(2, perf_context.bloom_memtable_hit_count);
+  ASSERT_EQ(1, get_perf_context()->bloom_memtable_miss_count);
+  ASSERT_EQ(2, get_perf_context()->bloom_memtable_hit_count);

  Flush();

@@ -798,19 +796,19 @@ TEST_P(BloomStatsTestWithParam, BloomStatsTestWithIter) {
  ASSERT_OK(iter->status());
  ASSERT_TRUE(iter->Valid());
  ASSERT_EQ(value1, iter->value().ToString());
-  ASSERT_EQ(1, perf_context.bloom_sst_hit_count);
+  ASSERT_EQ(1, get_perf_context()->bloom_sst_hit_count);

  iter->Seek(key3);
  ASSERT_OK(iter->status());
  ASSERT_TRUE(iter->Valid());
  ASSERT_EQ(value3, iter->value().ToString());
-  ASSERT_EQ(2, perf_context.bloom_sst_hit_count);
+  ASSERT_EQ(2, get_perf_context()->bloom_sst_hit_count);

  iter->Seek(key2);
  ASSERT_OK(iter->status());
  ASSERT_TRUE(!iter->Valid());
-  ASSERT_EQ(1, perf_context.bloom_sst_miss_count);
-  ASSERT_EQ(2, perf_context.bloom_sst_hit_count);
+  ASSERT_EQ(1, get_perf_context()->bloom_sst_miss_count);
+  ASSERT_EQ(2, get_perf_context()->bloom_sst_hit_count);
 }

 INSTANTIATE_TEST_CASE_P(BloomStatsTestWithParam, BloomStatsTestWithParam,
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -780,7 +778,7 @@ TEST_F(DBTestCompactionFilter, SkipUntil) {

  cfilter_skips = 0;
  ASSERT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
-  // Numberof skips in tables: 2, 3, 3, 3.
+  // Number of skips in tables: 2, 3, 3, 3.
  ASSERT_EQ(11, cfilter_skips);

  for (int table = 0; table < 4; ++table) {
@@ -801,6 +799,43 @@ TEST_F(DBTestCompactionFilter, SkipUntil) {
  }
 }

+TEST_F(DBTestCompactionFilter, SkipUntilWithBloomFilter) {
+  BlockBasedTableOptions table_options;
+  table_options.whole_key_filtering = false;
+  table_options.filter_policy.reset(NewBloomFilterPolicy(100, false));
+
+  Options options = CurrentOptions();
+  options.table_factory.reset(NewBlockBasedTableFactory(table_options));
+  options.prefix_extractor.reset(NewCappedPrefixTransform(9));
+  options.compaction_filter_factory = std::make_shared<SkipEvenFilterFactory>();
+  options.disable_auto_compactions = true;
+  options.create_if_missing = true;
+  DestroyAndReopen(options);
+
+  Put("0000000010", "v10");
+  Put("0000000020", "v20"); // skipped
+  Put("0000000050", "v50");
+  Flush();
+
+  cfilter_skips = 0;
+  EXPECT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
+  EXPECT_EQ(1, cfilter_skips);
+
+  Status s;
+  std::string val;
+
+  s = db_->Get(ReadOptions(), "0000000010", &val);
+  ASSERT_OK(s);
+  EXPECT_EQ("v10", val);
+
+  s = db_->Get(ReadOptions(), "0000000020", &val);
+  EXPECT_TRUE(s.IsNotFound());
+
+  s = db_->Get(ReadOptions(), "0000000050", &val);
+  ASSERT_OK(s);
+  EXPECT_EQ("v50", val);
+}
+
 }  // namespace rocksdb

 int main(int argc, char** argv) {
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -521,7 +519,6 @@ TEST_F(DBCompactionTest, BGCompactionsAllowed) {
  options.level0_file_num_compaction_trigger = 2;
  options.level0_slowdown_writes_trigger = 20;
  options.soft_pending_compaction_bytes_limit = 1 << 30;  // Infinitely large
-  options.base_background_compactions = 1;
  options.max_background_compactions = 3;
  options.memtable_factory.reset(new SpecialSkipListFactory(kNumKeysPerFile));

@@ -1230,6 +1227,9 @@ TEST_F(DBCompactionTest, DISABLED_ManualPartialFill) {
  options.max_background_compactions = 3;

  DestroyAndReopen(options);
+  // make sure all background compaction jobs can be scheduled
+  auto stop_token =
+      dbfull()->TEST_write_controler().GetCompactionPressureToken();
  int32_t value_size = 10 * 1024;  // 10 KB

  // Add 2 non-overlapping files
@@ -1977,7 +1977,6 @@ TEST_P(DBCompactionTestWithParam, ManualCompaction) {

    if (iter == 0) {
      options = CurrentOptions();
-      options.max_background_flushes = 0;
      options.num_levels = 3;
      options.create_if_missing = true;
      options.statistics = rocksdb::CreateDBStatistics();
@@ -2423,15 +2422,12 @@ TEST_F(DBCompactionTest, SanitizeCompactionOptionsTest) {
  options.hard_pending_compaction_bytes_limit = 100;
  options.create_if_missing = true;
  DestroyAndReopen(options);
-  ASSERT_EQ(5, db_->GetOptions().base_background_compactions);
  ASSERT_EQ(100, db_->GetOptions().soft_pending_compaction_bytes_limit);

-  options.base_background_compactions = 4;
  options.max_background_compactions = 3;
  options.soft_pending_compaction_bytes_limit = 200;
  options.hard_pending_compaction_bytes_limit = 150;
  DestroyAndReopen(options);
-  ASSERT_EQ(3, db_->GetOptions().base_background_compactions);
  ASSERT_EQ(150, db_->GetOptions().soft_pending_compaction_bytes_limit);
 }

@@ -2606,13 +2602,11 @@ TEST_P(DBCompactionTestWithParam, IntraL0Compaction) {
  // Files 6-9 are the longest span of available files for which
  // work-per-deleted-file decreases (see "score" row above).
  for (int i = 0; i < 10; ++i) {
-    for (int j = 0; j < 2; ++j) {
-      ASSERT_OK(Put(Key(0), ""));  // prevents trivial move
-      if (i == 5) {
-        ASSERT_OK(Put(Key(i + 1), value + value));
-      } else {
-        ASSERT_OK(Put(Key(i + 1), value));
-      }
+    ASSERT_OK(Put(Key(0), ""));  // prevents trivial move
+    if (i == 5) {
+      ASSERT_OK(Put(Key(i + 1), value + value));
+    } else {
+      ASSERT_OK(Put(Key(i + 1), value));
    }
    ASSERT_OK(Flush());
  }
@@ -2627,10 +2621,69 @@ TEST_P(DBCompactionTestWithParam, IntraL0Compaction) {
  ASSERT_EQ(2, level_to_files[0].size());
  ASSERT_GT(level_to_files[1].size(), 0);
  for (int i = 0; i < 2; ++i) {
-    ASSERT_GE(level_to_files[0][0].fd.file_size, 1 << 21);
+    ASSERT_GE(level_to_files[0][i].fd.file_size, 1 << 21);
  }
 }

+TEST_P(DBCompactionTestWithParam, IntraL0CompactionDoesNotObsoleteDeletions) {
+  // regression test for issue #2722: L0->L0 compaction can resurrect deleted
+  // keys from older L0 files if L1+ files' key-ranges do not include the key.
+  Options options = CurrentOptions();
+  options.compression = kNoCompression;
+  options.level0_file_num_compaction_trigger = 5;
+  options.max_background_compactions = 2;
+  options.max_subcompactions = max_subcompactions_;
+  DestroyAndReopen(options);
+
+  const size_t kValueSize = 1 << 20;
+  Random rnd(301);
+  std::string value(RandomString(&rnd, kValueSize));
+
+  rocksdb::SyncPoint::GetInstance()->LoadDependency(
+      {{"LevelCompactionPicker::PickCompactionBySize:0",
+        "CompactionJob::Run():Start"}});
+  rocksdb::SyncPoint::GetInstance()->EnableProcessing();
+
+  // index:   0   1   2   3   4    5    6   7   8   9
+  // size:  1MB 1MB 1MB 1MB 1MB  1MB  1MB 1MB 1MB 1MB
+  // score:                     1.25 1.33 1.5 2.0 inf
+  //
+  // Files 0-4 will be included in an L0->L1 compaction.
+  //
+  // L0->L0 will be triggered since the sync points guarantee compaction to base
+  // level is still blocked when files 5-9 trigger another compaction. All files
+  // 5-9 are included in the L0->L0 due to work-per-deleted file decreasing.
+  //
+  // Put a key-value in files 0-4. Delete that key in files 5-9. Verify the
+  // L0->L0 preserves the deletion such that the key remains deleted.
+  for (int i = 0; i < 10; ++i) {
+    // key 0 serves both to prevent trivial move and as the key we want to
+    // verify is not resurrected by L0->L0 compaction.
+    if (i < 5) {
+      ASSERT_OK(Put(Key(0), ""));
+    } else {
+      ASSERT_OK(Delete(Key(0)));
+    }
+    ASSERT_OK(Put(Key(i + 1), value));
+    ASSERT_OK(Flush());
+  }
+  dbfull()->TEST_WaitForCompact();
+  rocksdb::SyncPoint::GetInstance()->DisableProcessing();
+
+  std::vector<std::vector<FileMetaData>> level_to_files;
+  dbfull()->TEST_GetFilesMetaData(dbfull()->DefaultColumnFamily(),
+                                  &level_to_files);
+  ASSERT_GE(level_to_files.size(), 2);  // at least L0 and L1
+  // L0 has a single output file from L0->L0
+  ASSERT_EQ(1, level_to_files[0].size());
+  ASSERT_GT(level_to_files[1].size(), 0);
+  ASSERT_GE(level_to_files[0][0].fd.file_size, 1 << 22);
+
+  ReadOptions roptions;
+  std::string result;
+  ASSERT_TRUE(db_->Get(roptions, Key(0), &result).IsNotFound());
+}
+
 INSTANTIATE_TEST_CASE_P(DBCompactionTestWithParam, DBCompactionTestWithParam,
                        ::testing::Values(std::make_tuple(1, true),
                                          std::make_tuple(1, false),
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -59,7 +57,6 @@ TEST_F(DBTestDynamicLevel, DynamicLevelMaxBytesBase) {
      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;
@@ -129,7 +126,6 @@ TEST_F(DBTestDynamicLevel, DynamicLevelMaxBytesBase2) {

  Options options = CurrentOptions();
  options.create_if_missing = true;
-  options.db_write_buffer_size = 204800;
  options.write_buffer_size = 20480;
  options.max_write_buffer_number = 2;
  options.level0_file_num_compaction_trigger = 2;
@@ -286,7 +282,6 @@ TEST_F(DBTestDynamicLevel, DynamicLevelMaxBytesCompactRange) {

  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;
@@ -364,7 +359,6 @@ TEST_F(DBTestDynamicLevel, DynamicLevelMaxBytesCompactRange) {
 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;
@@ -377,6 +371,7 @@ TEST_F(DBTestDynamicLevel, DynamicLevelMaxBytesBaseInc) {
  options.soft_rate_limit = 1.1;
  options.max_background_compactions = 2;
  options.num_levels = 5;
+  options.max_compaction_bytes = 100000000;

  DestroyAndReopen(options);

@@ -416,7 +411,6 @@ TEST_F(DBTestDynamicLevel, DISABLED_MigrateToDynamicLevelMaxBytesBase) {

  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;
@@ -1,13 +1,8 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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

@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -91,6 +89,43 @@ TEST_F(DBFlushTest, SyncFail) {
  Destroy(options);
 }

+TEST_F(DBFlushTest, FlushInLowPriThreadPool) {
+  // Verify setting an empty high-pri (flush) thread pool causes flushes to be
+  // scheduled in the low-pri (compaction) thread pool.
+  Options options = CurrentOptions();
+  options.level0_file_num_compaction_trigger = 4;
+  options.memtable_factory.reset(new SpecialSkipListFactory(1));
+  Reopen(options);
+  env_->SetBackgroundThreads(0, Env::HIGH);
+
+  std::thread::id tid;
+  int num_flushes = 0, num_compactions = 0;
+  SyncPoint::GetInstance()->SetCallBack(
+      "DBImpl::BGWorkFlush", [&](void* arg) {
+        if (tid == std::thread::id()) {
+          tid = std::this_thread::get_id();
+        } else {
+          ASSERT_EQ(tid, std::this_thread::get_id());
+        }
+        ++num_flushes;
+      });
+  SyncPoint::GetInstance()->SetCallBack(
+      "DBImpl::BGWorkCompaction", [&](void* arg) {
+        ASSERT_EQ(tid, std::this_thread::get_id());
+        ++num_compactions;
+      });
+  SyncPoint::GetInstance()->EnableProcessing();
+
+  ASSERT_OK(Put("key", "val"));
+  for (int i = 0; i < 4; ++i) {
+    ASSERT_OK(Put("key", "val"));
+    dbfull()->TEST_WaitForFlushMemTable();
+  }
+  dbfull()->TEST_WaitForCompact();
+  ASSERT_EQ(4, num_flushes);
+  ASSERT_EQ(1, num_compactions);
+}
+
 TEST_P(DBFlushDirectIOTest, DirectIO) {
  Options options;
  options.create_if_missing = true;
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -18,9 +16,6 @@
 #ifdef OS_SOLARIS
 #include <alloca.h>
 #endif
-#ifdef ROCKSDB_JEMALLOC
-#include "jemalloc/jemalloc.h"
-#endif

 #include <algorithm>
 #include <climits>
@@ -46,6 +41,7 @@
 #include "db/job_context.h"
 #include "db/log_reader.h"
 #include "db/log_writer.h"
+#include "db/malloc_stats.h"
 #include "db/managed_iterator.h"
 #include "db/memtable.h"
 #include "db/memtable_list.h"
@@ -136,6 +132,8 @@ void DumpSupportInfo(Logger* logger) {
  ROCKS_LOG_HEADER(logger, "Fast CRC32 supported: %d",
                   crc32c::IsFastCrc32Supported());
 }
+
+int64_t kDefaultLowPriThrottledRate = 2 * 1024 * 1024;
 } // namespace

 DBImpl::DBImpl(const DBOptions& options, const std::string& dbname)
@@ -161,6 +159,11 @@ DBImpl::DBImpl(const DBOptions& options, const std::string& dbname)
      write_buffer_manager_(immutable_db_options_.write_buffer_manager.get()),
      write_thread_(immutable_db_options_),
      write_controller_(mutable_db_options_.delayed_write_rate),
+      // Use delayed_write_rate as a base line to determine the initial
+      // low pri write rate limit. It may be adjusted later.
+      low_pri_write_rate_limiter_(NewGenericRateLimiter(std::min(
+          static_cast<int64_t>(mutable_db_options_.delayed_write_rate / 8),
+          kDefaultLowPriThrottledRate))),
      last_batch_group_size_(0),
      unscheduled_flushes_(0),
      unscheduled_compactions_(0),
@@ -219,7 +222,7 @@ void DBImpl::CancelAllBackgroundWork(bool wait) {
      has_unpersisted_data_.load(std::memory_order_relaxed) &&
      !mutable_db_options_.avoid_flush_during_shutdown) {
    for (auto cfd : *versions_->GetColumnFamilySet()) {
-      if (!cfd->IsDropped() && !cfd->mem()->IsEmpty()) {
+      if (!cfd->IsDropped() && cfd->initialized() && !cfd->mem()->IsEmpty()) {
        cfd->Ref();
        mutex_.Unlock();
        FlushMemTable(cfd, FlushOptions());
@@ -370,39 +373,6 @@ void DBImpl::PrintStatistics() {
  }
 }

-#ifndef ROCKSDB_LITE
-#ifdef ROCKSDB_JEMALLOC
-typedef struct {
-  char* cur;
-  char* end;
-} MallocStatus;
-
-static void GetJemallocStatus(void* mstat_arg, const char* status) {
-  MallocStatus* mstat = reinterpret_cast<MallocStatus*>(mstat_arg);
-  size_t status_len = status ? strlen(status) : 0;
-  size_t buf_size = (size_t)(mstat->end - mstat->cur);
-  if (!status_len || status_len > buf_size) {
-    return;
-  }
-
-  snprintf(mstat->cur, buf_size, "%s", status);
-  mstat->cur += status_len;
-}
-#endif  // ROCKSDB_JEMALLOC
-
-static void DumpMallocStats(std::string* stats) {
-#ifdef ROCKSDB_JEMALLOC
-  MallocStatus mstat;
-  const unsigned int kMallocStatusLen = 1000000;
-  std::unique_ptr<char[]> buf{new char[kMallocStatusLen + 1]};
-  mstat.cur = buf.get();
-  mstat.end = buf.get() + kMallocStatusLen;
-  je_malloc_stats_print(GetJemallocStatus, &mstat, "");
-  stats->append(buf.get());
-#endif  // ROCKSDB_JEMALLOC
-}
-#endif  // !ROCKSDB_LITE
-
 void DBImpl::MaybeDumpStats() {
  mutex_.Lock();
  unsigned int stats_dump_period_sec =
@@ -434,12 +404,17 @@ void DBImpl::MaybeDumpStats() {
      default_cf_internal_stats_->GetStringProperty(
          *db_property_info, DB::Properties::kDBStats, &stats);
      for (auto cfd : *versions_->GetColumnFamilySet()) {
-        cfd->internal_stats()->GetStringProperty(
-            *cf_property_info, DB::Properties::kCFStatsNoFileHistogram, &stats);
+        if (cfd->initialized()) {
+          cfd->internal_stats()->GetStringProperty(
+              *cf_property_info, DB::Properties::kCFStatsNoFileHistogram,
+              &stats);
+        }
      }
      for (auto cfd : *versions_->GetColumnFamilySet()) {
-        cfd->internal_stats()->GetStringProperty(
-            *cf_property_info, DB::Properties::kCFFileHistogram, &stats);
+        if (cfd->initialized()) {
+          cfd->internal_stats()->GetStringProperty(
+              *cf_property_info, DB::Properties::kCFFileHistogram, &stats);
+        }
      }
    }
    ROCKS_LOG_WARN(immutable_db_options_.info_log,
@@ -1236,6 +1211,8 @@ Status DBImpl::CreateColumnFamilyImpl(const ColumnFamilyOptions& cf_options,
        is_snapshot_supported_ = false;
      }

+      cfd->set_initialized();
+
      *handle = new ColumnFamilyHandleImpl(cfd, this, &mutex_);
      ROCKS_LOG_INFO(immutable_db_options_.info_log,
                     "Created column family [%s] (ID %u)",
@@ -1737,7 +1714,9 @@ bool DBImpl::GetIntPropertyInternal(ColumnFamilyData* cfd,
 Status DBImpl::ResetStats() {
  InstrumentedMutexLock l(&mutex_);
  for (auto* cfd : *versions_->GetColumnFamilySet()) {
-    cfd->internal_stats()->Clear();
+    if (cfd->initialized()) {
+      cfd->internal_stats()->Clear();
+    }
  }
  return Status::OK();
 }
@@ -1756,6 +1735,9 @@ bool DBImpl::GetAggregatedIntProperty(const Slice& property,
    InstrumentedMutexLock l(&mutex_);
    uint64_t value;
    for (auto* cfd : *versions_->GetColumnFamilySet()) {
+      if (!cfd->initialized()) {
+        continue;
+      }
      if (GetIntPropertyInternal(cfd, *property_info, true, &value)) {
        sum += value;
      } else {
@@ -2348,6 +2330,9 @@ Status DBImpl::WriteOptionsFile(bool need_mutex_lock,
      BuildDBOptions(immutable_db_options_, mutable_db_options_);
  mutex_.Unlock();

+  TEST_SYNC_POINT("DBImpl::WriteOptionsFile:1");
+  TEST_SYNC_POINT("DBImpl::WriteOptionsFile:2");
+
  std::string file_name =
      TempOptionsFileName(GetName(), versions_->NewFileNumber());
  Status s =
@@ -2483,7 +2468,7 @@ void DBImpl::EraseThreadStatusDbInfo() const {
 // A global method that can dump out the build version
 void DumpRocksDBBuildVersion(Logger * log) {
 #if !defined(IOS_CROSS_COMPILE)
-  // if we compile with Xcode, we don't run build_detect_vesion, so we don't
+  // if we compile with Xcode, we don't run build_detect_version, so we don't
  // generate util/build_version.cc
  ROCKS_LOG_HEADER(log, "RocksDB version: %d.%d.%d\n", ROCKSDB_MAJOR,
                   ROCKSDB_MINOR, ROCKSDB_PATCH);
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -401,12 +399,21 @@ class DBImpl : public DB {
  uint64_t TEST_FindMinPrepLogReferencedByMemTable();

  int TEST_BGCompactionsAllowed() const;
+  int TEST_BGFlushesAllowed() const;

 #endif  // NDEBUG

-  // Return maximum background compaction allowed to be scheduled based on
-  // compaction status.
-  int BGCompactionsAllowed() const;
+  struct BGJobLimits {
+    int max_flushes;
+    int max_compactions;
+  };
+  // Returns maximum background flushes and compactions allowed to be scheduled
+  BGJobLimits GetBGJobLimits() const;
+  // Need a static version that can be called during SanitizeOptions().
+  static BGJobLimits GetBGJobLimits(int max_background_flushes,
+                                    int max_background_compactions,
+                                    int max_background_jobs,
+                                    bool parallelize_compactions);

  // move logs pending closing from job_context to the DB queue and
  // schedule a purge
@@ -713,6 +720,9 @@ class DBImpl : public DB {
  //            `num_bytes` going through.
  Status DelayWrite(uint64_t num_bytes, const WriteOptions& write_options);

+  Status ThrottleLowPriWritesIfNeeded(const WriteOptions& write_options,
+                                      WriteBatch* my_batch);
+
  Status ScheduleFlushes(WriteContext* context);

  Status SwitchMemtable(ColumnFamilyData* cfd, WriteContext* context);
@@ -932,6 +942,8 @@ class DBImpl : public DB {

  WriteController write_controller_;

+  unique_ptr<RateLimiter> low_pri_write_rate_limiter_;
+
  // Size of the last batch group. In slowdown mode, next write needs to
  // sleep if it uses up the quota.
  uint64_t last_batch_group_size_;
@@ -1186,7 +1198,7 @@ extern DBOptions SanitizeOptions(const std::string& db, const DBOptions& src);
 extern CompressionType GetCompressionFlush(
    const ImmutableCFOptions& ioptions,
    const MutableCFOptions& mutable_cf_options);
- 
+
 // Fix user-supplied options to be reasonable
 template <class T, class V>
 static void ClipToRange(T* ptr, V minvalue, V maxvalue) {
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -983,22 +981,22 @@ void DBImpl::MaybeScheduleFlushOrCompaction() {
    // DB is being deleted; no more background compactions
    return;
  }
-
-  while (unscheduled_flushes_ > 0 &&
-         bg_flush_scheduled_ < immutable_db_options_.max_background_flushes) {
+  auto bg_job_limits = GetBGJobLimits();
+  bool is_flush_pool_empty =
+    env_->GetBackgroundThreads(Env::Priority::HIGH) == 0;
+  while (!is_flush_pool_empty && unscheduled_flushes_ > 0 &&
+         bg_flush_scheduled_ < bg_job_limits.max_flushes) {
    unscheduled_flushes_--;
    bg_flush_scheduled_++;
    env_->Schedule(&DBImpl::BGWorkFlush, this, Env::Priority::HIGH, this);
  }

-  auto bg_compactions_allowed = BGCompactionsAllowed();
-
-  // special case -- if max_background_flushes == 0, then schedule flush on a
-  // compaction thread
-  if (immutable_db_options_.max_background_flushes == 0) {
+  // special case -- if high-pri (flush) thread pool is empty, then schedule
+  // flushes in low-pri (compaction) thread pool.
+  if (is_flush_pool_empty) {
    while (unscheduled_flushes_ > 0 &&
           bg_flush_scheduled_ + bg_compaction_scheduled_ <
-               bg_compactions_allowed) {
+               bg_job_limits.max_flushes) {
      unscheduled_flushes_--;
      bg_flush_scheduled_++;
      env_->Schedule(&DBImpl::BGWorkFlush, this, Env::Priority::LOW, this);
@@ -1016,7 +1014,7 @@ void DBImpl::MaybeScheduleFlushOrCompaction() {
    return;
  }

-  while (bg_compaction_scheduled_ < bg_compactions_allowed &&
+  while (bg_compaction_scheduled_ < bg_job_limits.max_compactions &&
         unscheduled_compactions_ > 0) {
    CompactionArg* ca = new CompactionArg;
    ca->db = this;
@@ -1028,13 +1026,35 @@ void DBImpl::MaybeScheduleFlushOrCompaction() {
  }
 }

-int DBImpl::BGCompactionsAllowed() const {
+DBImpl::BGJobLimits DBImpl::GetBGJobLimits() const {
  mutex_.AssertHeld();
-  if (write_controller_.NeedSpeedupCompaction()) {
-    return mutable_db_options_.max_background_compactions;
+  return GetBGJobLimits(immutable_db_options_.max_background_flushes,
+                        mutable_db_options_.max_background_compactions,
+                        mutable_db_options_.max_background_jobs,
+                        write_controller_.NeedSpeedupCompaction());
+}
+
+DBImpl::BGJobLimits DBImpl::GetBGJobLimits(int max_background_flushes,
+                                           int max_background_compactions,
+                                           int max_background_jobs,
+                                           bool parallelize_compactions) {
+  BGJobLimits res;
+  if (max_background_flushes == -1 && max_background_compactions == -1) {
+    // for our first stab implementing max_background_jobs, simply allocate a
+    // quarter of the threads to flushes.
+    res.max_flushes = std::max(1, max_background_jobs / 4);
+    res.max_compactions = std::max(1, max_background_jobs - res.max_flushes);
  } else {
-    return mutable_db_options_.base_background_compactions;
+    // compatibility code in case users haven't migrated to max_background_jobs,
+    // which automatically computes flush/compaction limits
+    res.max_flushes = std::max(1, max_background_flushes);
+    res.max_compactions = std::max(1, max_background_compactions);
  }
+  if (!parallelize_compactions) {
+    // throttle background compactions until we deem necessary
+    res.max_compactions = 1;
+  }
+  return res;
 }

 void DBImpl::AddToCompactionQueue(ColumnFamilyData* cfd) {
@@ -1156,13 +1176,15 @@ Status DBImpl::BackgroundFlush(bool* made_progress, JobContext* job_context,
  if (cfd != nullptr) {
    const MutableCFOptions mutable_cf_options =
        *cfd->GetLatestMutableCFOptions();
+    auto bg_job_limits = GetBGJobLimits();
    ROCKS_LOG_BUFFER(
        log_buffer,
        "Calling FlushMemTableToOutputFile with column "
-        "family [%s], flush slots available %d, compaction slots allowed %d, "
-        "compaction slots scheduled %d",
-        cfd->GetName().c_str(), immutable_db_options_.max_background_flushes -
-        bg_flush_scheduled_, BGCompactionsAllowed(), bg_compaction_scheduled_);
+        "family [%s], flush slots available %d, compaction slots available %d, "
+        "flush slots scheduled %d, compaction slots scheduled %d",
+        cfd->GetName().c_str(), bg_job_limits.max_flushes,
+        bg_job_limits.max_compactions, bg_flush_scheduled_,
+        bg_compaction_scheduled_);
    status = FlushMemTableToOutputFile(cfd, mutable_cf_options, made_progress,
                                       job_context, log_buffer);
    if (cfd->Unref()) {
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -188,7 +186,12 @@ Status DBImpl::TEST_GetLatestMutableCFOptions(

 int DBImpl::TEST_BGCompactionsAllowed() const {
  InstrumentedMutexLock l(&mutex_);
-  return BGCompactionsAllowed();
+  return GetBGJobLimits().max_compactions;
+}
+
+int DBImpl::TEST_BGFlushesAllowed() const {
+  InstrumentedMutexLock l(&mutex_);
+  return GetBGJobLimits().max_flushes;
 }

 }  // namespace rocksdb
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -18,6 +16,7 @@
 #include "db/builder.h"
 #include "options/options_helper.h"
 #include "rocksdb/wal_filter.h"
+#include "util/rate_limiter.h"
 #include "util/sst_file_manager_impl.h"
 #include "util/sync_point.h"

@@ -55,15 +54,13 @@ DBOptions SanitizeOptions(const std::string& dbname, const DBOptions& src) {
    result.write_buffer_manager.reset(
        new WriteBufferManager(result.db_write_buffer_size));
  }
-  if (result.base_background_compactions == -1) {
-    result.base_background_compactions = result.max_background_compactions;
-  }
-  if (result.base_background_compactions > result.max_background_compactions) {
-    result.base_background_compactions = result.max_background_compactions;
-  }
-  result.env->IncBackgroundThreadsIfNeeded(src.max_background_compactions,
+  auto bg_job_limits = DBImpl::GetBGJobLimits(result.max_background_flushes,
+                                              result.max_background_compactions,
+                                              result.max_background_jobs,
+                                              true /* parallelize_compactions */);
+  result.env->IncBackgroundThreadsIfNeeded(bg_job_limits.max_compactions,
                                           Env::Priority::LOW);
-  result.env->IncBackgroundThreadsIfNeeded(src.max_background_flushes,
+  result.env->IncBackgroundThreadsIfNeeded(bg_job_limits.max_flushes,
                                           Env::Priority::HIGH);

  if (result.rate_limiter.get() != nullptr) {
@@ -72,6 +69,15 @@ DBOptions SanitizeOptions(const std::string& dbname, const DBOptions& src) {
    }
  }

+  if (result.delayed_write_rate == 0) {
+    if (result.rate_limiter.get() != nullptr) {
+      result.delayed_write_rate = result.rate_limiter->GetBytesPerSecond();
+    }
+    if (result.delayed_write_rate == 0) {
+      result.delayed_write_rate = 16 * 1024 * 1024;
+    }
+  }
+
  if (result.WAL_ttl_seconds > 0 || result.WAL_size_limit_MB > 0) {
    result.recycle_log_file_num = false;
  }
@@ -892,7 +898,7 @@ Status DB::Open(const Options& options, const std::string& dbname, DB** dbptr) {
  }
  return s;
 }
-  
+
 Status DB::Open(const DBOptions& db_options, const std::string& dbname,
                const std::vector<ColumnFamilyDescriptor>& column_families,
                std::vector<ColumnFamilyHandle*>* handles, DB** dbptr) {
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root directory).


 #include "db/db_impl_readonly.h"
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root directory).

 #pragma once

@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -66,13 +64,19 @@ Status DBImpl::WriteImpl(const WriteOptions& write_options,
    return Status::Corruption("Batch is nullptr!");
  }

+  Status status;
+  if (write_options.low_pri) {
+    status = ThrottleLowPriWritesIfNeeded(write_options, my_batch);
+    if (!status.ok()) {
+      return status;
+    }
+  }
+
  if (immutable_db_options_.enable_pipelined_write) {
    return PipelinedWriteImpl(write_options, my_batch, callback, log_used,
                              log_ref, disable_memtable);
  }

-  Status status;
-
  PERF_TIMER_GUARD(write_pre_and_post_process_time);
  WriteThread::Writer w(write_options, my_batch, callback, log_ref,
                        disable_memtable);
@@ -91,9 +95,8 @@ Status DBImpl::WriteImpl(const WriteOptions& write_options,
    if (w.ShouldWriteToMemtable()) {
      ColumnFamilyMemTablesImpl column_family_memtables(
          versions_->GetColumnFamilySet());
-      WriteBatchInternal::SetSequence(w.batch, w.sequence);
      w.status = WriteBatchInternal::InsertInto(
-          &w, &column_family_memtables, &flush_scheduler_,
+          &w, w.sequence, &column_family_memtables, &flush_scheduler_,
          write_options.ignore_missing_column_families, 0 /*log_number*/, this,
          true /*concurrent_memtable_writes*/);
    }
@@ -239,9 +242,8 @@ Status DBImpl::WriteImpl(const WriteOptions& write_options,
          ColumnFamilyMemTablesImpl column_family_memtables(
              versions_->GetColumnFamilySet());
          assert(w.sequence == current_sequence);
-          WriteBatchInternal::SetSequence(w.batch, w.sequence);
          w.status = WriteBatchInternal::InsertInto(
-              &w, &column_family_memtables, &flush_scheduler_,
+              &w, w.sequence, &column_family_memtables, &flush_scheduler_,
              write_options.ignore_missing_column_families, 0 /*log_number*/,
              this, true /*concurrent_memtable_writes*/);
        }
@@ -384,11 +386,10 @@ Status DBImpl::PipelinedWriteImpl(const WriteOptions& write_options,

  if (w.state == WriteThread::STATE_PARALLEL_MEMTABLE_WRITER) {
    assert(w.ShouldWriteToMemtable());
-    WriteBatchInternal::SetSequence(w.batch, w.sequence);
    ColumnFamilyMemTablesImpl column_family_memtables(
        versions_->GetColumnFamilySet());
    w.status = WriteBatchInternal::InsertInto(
-        &w, &column_family_memtables, &flush_scheduler_,
+        &w, w.sequence, &column_family_memtables, &flush_scheduler_,
        write_options.ignore_missing_column_families, 0 /*log_number*/, this,
        true /*concurrent_memtable_writes*/);
    if (write_thread_.CompleteParallelMemTableWriter(&w)) {
@@ -745,6 +746,34 @@ Status DBImpl::DelayWrite(uint64_t num_bytes,
  return bg_error_;
 }

+Status DBImpl::ThrottleLowPriWritesIfNeeded(const WriteOptions& write_options,
+                                            WriteBatch* my_batch) {
+  assert(write_options.low_pri);
+  // This is called outside the DB mutex. Although it is safe to make the call,
+  // the consistency condition is not guaranteed to hold. It's OK to live with
+  // it in this case.
+  // If we need to speed compaction, it means the compaction is left behind
+  // and we start to limit low pri writes to a limit.
+  if (write_controller_.NeedSpeedupCompaction()) {
+    if (allow_2pc() && (my_batch->HasCommit() || my_batch->HasRollback())) {
+      // For 2PC, we only rate limit prepare, not commit.
+      return Status::OK();
+    }
+    if (write_options.no_slowdown) {
+      return Status::Incomplete();
+    } else {
+      assert(my_batch != nullptr);
+      // Rate limit those writes. The reason that we don't completely wait
+      // is that in case the write is heavy, low pri writes may never have
+      // a chance to run. Now we guarantee we are still slowly making
+      // progress.
+      write_controller_.low_pri_rate_limiter()->Request(my_batch->GetDataSize(),
+                                                        Env::IO_HIGH, nullptr);
+    }
+  }
+  return Status::OK();
+}
+
 Status DBImpl::ScheduleFlushes(WriteContext* context) {
  ColumnFamilyData* cfd;
  while ((cfd = flush_scheduler_.TakeNextColumnFamily()) != nullptr) {
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root directory).

 #ifndef __STDC_FORMAT_MACROS
 #define __STDC_FORMAT_MACROS
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root directory).
 #pragma once

 #include <string>
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -1,9 +1,7 @@
 //  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.
-//  This source code is also licensed under the GPLv2 license found in the
-//  COPYING file in the root directory of this source tree.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root 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
@@ -562,7 +560,7 @@ void DBIter::MergeValuesNewToOld() {
      const Slice val = iter_->value();
      s = MergeHelper::TimedFullMerge(
          merge_operator_, ikey.user_key, &val, merge_context_.GetOperands(),
-          &saved_value_, logger_, statistics_, env_, &pinned_value_);
+          &saved_value_, logger_, statistics_, env_, &pinned_value_, true);
      if (!s.ok()) {
        status_ = s;
      }
@@ -587,7 +585,7 @@ void DBIter::MergeValuesNewToOld() {
  s = MergeHelper::TimedFullMerge(merge_operator_, saved_key_.GetUserKey(),
                                  nullptr, merge_context_.GetOperands(),
                                  &saved_value_, logger_, statistics_, env_,
-                                  &pinned_value_);
+                                  &pinned_value_, true);
  if (!s.ok()) {
    status_ = s;
  }
@@ -806,13 +804,13 @@ bool DBIter::FindValueForCurrentKey() {
        s = MergeHelper::TimedFullMerge(
            merge_operator_, saved_key_.GetUserKey(), nullptr,
            merge_context_.GetOperands(), &saved_value_, logger_, statistics_,
-            env_, &pinned_value_);
+            env_, &pinned_value_, true);
      } else {
        assert(last_not_merge_type == kTypeValue);
        s = MergeHelper::TimedFullMerge(
            merge_operator_, saved_key_.GetUserKey(), &pinned_value_,
            merge_context_.GetOperands(), &saved_value_, logger_, statistics_,
-            env_, &pinned_value_);
+            env_, &pinned_value_, true);
      }
      break;
    case kTypeValue:
@@ -884,7 +882,7 @@ bool DBIter::FindValueForCurrentKeyUsingSeek() {
    s = MergeHelper::TimedFullMerge(merge_operator_, saved_key_.GetUserKey(),
                                    nullptr, merge_context_.GetOperands(),
                                    &saved_value_, logger_, statistics_, env_,
-                                    &pinned_value_);
+                                    &pinned_value_, true);
    // Make iter_ valid and point to saved_key_
    if (!iter_->Valid() ||
        !user_comparator_->Equal(ikey.user_key, saved_key_.GetUserKey())) {
@@ -902,7 +900,7 @@ bool DBIter::FindValueForCurrentKeyUsingSeek() {
  s = MergeHelper::TimedFullMerge(merge_operator_, saved_key_.GetUserKey(),
                                  &val, merge_context_.GetOperands(),
                                  &saved_value_, logger_, statistics_, env_,
-                                  &pinned_value_);
+                                  &pinned_value_, true);
  valid_ = true;
  if (!s.ok()) {
    status_ = s;
@@ -933,12 +931,7 @@ void DBIter::FindPrevUserKey() {
    return;
  }
  size_t num_skipped = 0;
-// Suppress false positive clang analyzer warnings.
-#ifdef __clang_analyzer__
-  ParsedInternalKey ikey(Slice(), 0, 0);
-#else
  ParsedInternalKey ikey;
-#endif  // __clang_analyzer__
  FindParseableKey(&ikey, kReverse);
  int cmp;
  while (iter_->Valid() &&