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8 Commits
Author SHA1 Message Date
sdong e80a7f4bab Disable error as warning 2019-11-05 10:57:56 -08:00
sdong f004ff4c58 Add one more #include<functional> 2019-11-05 10:56:44 -08:00
sdong 379152e00f Add some include<functional> 2019-10-31 14:34:54 -07:00
sdong f739414e19 [FB Internal] Point to the latest tool chain. 2019-10-31 14:34:53 -07:00
sdong ed9cecc6d1 [fb only] revert unintended change of USE_SSE
The previuos change that use gcc-5 set USE_SSE to wrong flag by mistake. Fix it.
2017-07-17 22:21:04 -07:00
sdong 90a80dc203 [FB Only] use gcc-5 2017-07-17 21:36:47 -07:00
Yueh-Hsuan Chiang d43b80308a Fix a bug where flush does not happen when a manual compaction is running
Summary:
Currently, when rocksdb tries to run manual compaction to refit data into a level,
there's a ReFitLevel() process that requires no bg work is currently running.
When RocksDB plans to ReFitLevel(), it will do the following:

 1. pause scheduling new bg work.
 2. wait until all bg work finished
 3. do the ReFitLevel()
 4. unpause scheduling new bg work.

However, as it pause scheduling new bg work at step one and waiting for all bg work
finished in step 2, RocksDB will stop flushing until all bg work is done (which
could take a long time.)

This patch fix this issue by changing the way ReFitLevel() pause the background work:

1. pause scheduling compaction.
2. wait until all bg work finished.
3. pause scheduling flush
4. do ReFitLevel()
5. unpause both flush and compaction.

The major difference is that.  We only pause scheduling compaction in step 1 and wait
for all bg work finished in step 2.  This prevent flush being blocked for a long time.
Although there's a very rare case that ReFitLevel() might be in starvation in step 2,
but it's less likely the case as flush typically finish very fast.

Test Plan: existing test.

Reviewers: anthony, IslamAbdelRahman, kradhakrishnan, sdong

Reviewed By: sdong

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D55029
2016-03-22 11:05:51 -07:00
Yueh-Hsuan Chiang 43f170502f Fix a bug where flush does not happen when a manual compaction is running
Summary:
Currently, when rocksdb tries to run manual compaction to refit data into a level,
there's a ReFitLevel() process that requires no bg work is currently running.
When RocksDB plans to ReFitLevel(), it will do the following:

 1. pause scheduling new bg work.
 2. wait until all bg work finished
 3. do the ReFitLevel()
 4. unpause scheduling new bg work.

However, as it pause scheduling new bg work at step one and waiting for all bg work
finished in step 2, RocksDB will stop flushing until all bg work is done (which
could take a long time.)

This patch fix this issue by changing the way ReFitLevel() pause the background work:

1. pause scheduling compaction.
2. wait until all bg work finished.
3. pause scheduling flush
4. do ReFitLevel()
5. unpause both flush and compaction.

The major difference is that.  We only pause scheduling compaction in step 1 and wait
for all bg work finished in step 2.  This prevent flush being blocked for a long time.
Although there's a very rare case that ReFitLevel() might be in starvation in step 2,
but it's less likely the case as flush typically finish very fast.

Test Plan: existing test.

Reviewers: anthony, IslamAbdelRahman, kradhakrishnan, sdong

Reviewed By: sdong

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D55029
2016-03-21 15:41:23 -07:00
8 changed files with 111 additions and 66 deletions

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-4
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@@ -187,10 +187,6 @@ default: all
WARNING_FLAGS = -W -Wextra -Wall -Wsign-compare -Wshadow \
-Wno-unused-parameter
ifndef DISABLE_WARNING_AS_ERROR
WARNING_FLAGS += -Werror
endif
CFLAGS += $(WARNING_FLAGS) -I. -I./include $(PLATFORM_CCFLAGS) $(OPT)
CXXFLAGS += $(WARNING_FLAGS) -I. -I./include $(PLATFORM_CXXFLAGS) $(OPT) -Woverloaded-virtual -Wnon-virtual-dtor -Wno-missing-field-initializers
+1 -6
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@@ -52,12 +52,7 @@ if [ -z "$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 "$PWD/build_tools/fbcode_config.sh"
else
# we need this to build with MySQL. Don't use for other purposes.
source "$PWD/build_tools/fbcode_config4.8.1.sh"
fi
source "$PWD/build_tools/fbcode_config.sh"
fi
# Delete existing output, if it exists
+19
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@@ -0,0 +1,19 @@
# Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
GCC_BASE=/mnt/gvfs/third-party2/gcc/7331085db891a2ef4a88a48a751d834e8d68f4cb/7.x/centos7-native/b2ef2b6
CLANG_BASE=/mnt/gvfs/third-party2/llvm-fb/963d9aeda70cc4779885b1277484fe7544a04e3e/9.0.0/platform007/9e92d53/
LIBGCC_BASE=/mnt/gvfs/third-party2/libgcc/6ace84e956873d53638c738b6f65f3f469cca74c/7.x/platform007/5620abc
GLIBC_BASE=/mnt/gvfs/third-party2/glibc/192b0f42d63dcf6210d6ceae387b49af049e6e0c/2.26/platform007/f259413
SNAPPY_BASE=/mnt/gvfs/third-party2/snappy/7f9bdaada18f59bc27ec2b0871eb8a6144343aef/1.1.3/platform007/ca4da3d
ZLIB_BASE=/mnt/gvfs/third-party2/zlib/2d9f0b9a4274cc21f61272a9e89bdb859bce8f1f/1.2.8/platform007/ca4da3d
BZIP2_BASE=/mnt/gvfs/third-party2/bzip2/dc49a21c5fceec6456a7a28a94dcd16690af1337/1.0.6/platform007/ca4da3d
LZ4_BASE=/mnt/gvfs/third-party2/lz4/0f607f8fc442ea7d6b876931b1898bb573d5e5da/1.9.1/platform007/ca4da3d
ZSTD_BASE=/mnt/gvfs/third-party2/zstd/ca22bc441a4eb709e9e0b1f9fec9750fed7b31c5/1.4.x/platform007/15a3614
GFLAGS_BASE=/mnt/gvfs/third-party2/gflags/0b9929d2588991c65a57168bf88aff2db87c5d48/2.2.0/platform007/ca4da3d
JEMALLOC_BASE=/mnt/gvfs/third-party2/jemalloc/c26f08f47ac35fc31da2633b7da92d6b863246eb/master/platform007/c26c002
NUMA_BASE=/mnt/gvfs/third-party2/numa/3f3fb57a5ccc5fd21c66416c0b83e0aa76a05376/2.0.11/platform007/ca4da3d
LIBUNWIND_BASE=/mnt/gvfs/third-party2/libunwind/40c73d874898b386a71847f1b99115d93822d11f/1.4/platform007/6f3e0a9
TBB_BASE=/mnt/gvfs/third-party2/tbb/4ce8e8dba77cdbd81b75d6f0c32fd7a1b76a11ec/2018_U5/platform007/ca4da3d
KERNEL_HEADERS_BASE=/mnt/gvfs/third-party2/kernel-headers/fb251ecd2f5ae16f8671f7014c246e52a748fe0b/fb/platform007/da39a3e
BINUTILS_BASE=/mnt/gvfs/third-party2/binutils/ab9f09bba370e7066cafd4eb59752db93f2e8312/2.29.1/platform007/15a3614
VALGRIND_BASE=/mnt/gvfs/third-party2/valgrind/d42d152a15636529b0861ec493927200ebebca8e/3.15.0/platform007/ca4da3d
LUA_BASE=/mnt/gvfs/third-party2/lua/f0cd714433206d5139df61659eb7b28b1dea6683/5.3.4/platform007/5007832
+72 -53
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@@ -6,128 +6,147 @@
# 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.sh"
CFLAGS=""
# location of libgcc
LIBGCC_BASE="/mnt/gvfs/third-party2/libgcc/0473c80518a10d6efcbe24c5eeca3fb4ec9b519c/4.9.x/gcc-4.9-glibc-2.20/e1a7e4e"
LIBGCC_INCLUDE="$LIBGCC_BASE/include"
LIBGCC_LIBS=" -L $LIBGCC_BASE/libs"
# libgcc
LIBGCC_INCLUDE="$LIBGCC_BASE/include/c++/7.3.0"
LIBGCC_LIBS=" -L $LIBGCC_BASE/lib"
# location of glibc
GLIBC_REV=7397bed99280af5d9543439cdb7d018af7542720
GLIBC_INCLUDE="/mnt/gvfs/third-party2/glibc/$GLIBC_REV/2.20/gcc-4.9-glibc-2.20/99df8fc/include"
GLIBC_LIBS=" -L /mnt/gvfs/third-party2/glibc/$GLIBC_REV/2.20/gcc-4.9-glibc-2.20/99df8fc/lib"
SNAPPY_INCLUDE=" -I /mnt/gvfs/third-party2/snappy/b0f269b3ca47770121aa159b99e1d8d2ab260e1f/1.0.3/gcc-4.9-glibc-2.20/c32916f/include/"
# glibc
GLIBC_INCLUDE="$GLIBC_BASE/include"
GLIBC_LIBS=" -L $GLIBC_BASE/lib"
# snappy
SNAPPY_INCLUDE=" -I $SNAPPY_BASE/include/"
if test -z $PIC_BUILD; then
SNAPPY_LIBS=" /mnt/gvfs/third-party2/snappy/b0f269b3ca47770121aa159b99e1d8d2ab260e1f/1.0.3/gcc-4.9-glibc-2.20/c32916f/lib/libsnappy.a"
SNAPPY_LIBS=" $SNAPPY_BASE/lib/libsnappy.a"
else
SNAPPY_LIBS=" /mnt/gvfs/third-party2/snappy/b0f269b3ca47770121aa159b99e1d8d2ab260e1f/1.0.3/gcc-4.9-glibc-2.20/c32916f/lib/libsnappy_pic.a"
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 /mnt/gvfs/third-party2/zlib/feb983d9667f4cf5e9da07ce75abc824764b67a1/1.2.8/gcc-4.9-glibc-2.20/4230243/include/"
ZLIB_LIBS=" /mnt/gvfs/third-party2/zlib/feb983d9667f4cf5e9da07ce75abc824764b67a1/1.2.8/gcc-4.9-glibc-2.20/4230243/lib/libz.a"
ZLIB_INCLUDE=" -I $ZLIB_BASE/include/"
ZLIB_LIBS=" $ZLIB_BASE/lib/libz.a"
CFLAGS+=" -DZLIB"
# location of bzip headers and libraries
BZIP_INCLUDE=" -I /mnt/gvfs/third-party2/bzip2/af004cceebb2dfd173ca29933ea5915e727aad2f/1.0.6/gcc-4.9-glibc-2.20/4230243/include/"
BZIP_LIBS=" /mnt/gvfs/third-party2/bzip2/af004cceebb2dfd173ca29933ea5915e727aad2f/1.0.6/gcc-4.9-glibc-2.20/4230243/lib/libbz2.a"
BZIP_INCLUDE=" -I $BZIP2_BASE/include/"
BZIP_LIBS=" $BZIP2_BASE/lib/libbz2.a"
CFLAGS+=" -DBZIP2"
LZ4_INCLUDE=" -I /mnt/gvfs/third-party2/lz4/79d2943e2dd7208a3e0b06cf95e9f85f05fe9e1b/r124/gcc-4.9-glibc-2.20/4230243/include/"
LZ4_LIBS=" /mnt/gvfs/third-party2/lz4/79d2943e2dd7208a3e0b06cf95e9f85f05fe9e1b/r124/gcc-4.9-glibc-2.20/4230243/lib/liblz4.a"
LZ4_INCLUDE=" -I $LZ4_BASE/include/"
LZ4_LIBS=" $LZ4_BASE/lib/liblz4.a"
CFLAGS+=" -DLZ4"
ZSTD_REV=810b81b4705def5243e998b54701f3c504e4009e
ZSTD_INCLUDE=" -I /mnt/gvfs/third-party2/zstd/$ZSTD_REV/0.4.2/gcc-4.8.1-glibc-2.17/c3f970a/include"
ZSTD_LIBS=" /mnt/gvfs/third-party2/zstd/$ZSTD_REV/0.4.2/gcc-4.8.1-glibc-2.17/c3f970a/lib/libzstd.a"
CFLAGS+=" -DZSTD"
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 /mnt/gvfs/third-party2/gflags/0fa60e2b88de3e469db6c482d6e6dac72f5d65f9/1.6/gcc-4.9-glibc-2.20/4230243/include/"
GFLAGS_INCLUDE=" -I $GFLAGS_BASE/include/"
if test -z $PIC_BUILD; then
GFLAGS_LIBS=" /mnt/gvfs/third-party2/gflags/0fa60e2b88de3e469db6c482d6e6dac72f5d65f9/1.6/gcc-4.9-glibc-2.20/4230243/lib/libgflags.a"
GFLAGS_LIBS=" $GFLAGS_BASE/lib/libgflags.a"
else
GFLAGS_LIBS=" /mnt/gvfs/third-party2/gflags/0fa60e2b88de3e469db6c482d6e6dac72f5d65f9/1.6/gcc-4.9-glibc-2.20/4230243/lib/libgflags_pic.a"
GFLAGS_LIBS=" $GFLAGS_BASE/lib/libgflags_pic.a"
fi
CFLAGS+=" -DGFLAGS=google"
CFLAGS+=" -DGFLAGS=gflags"
# location of jemalloc
JEMALLOC_INCLUDE=" -I /mnt/gvfs/third-party2/jemalloc/bcd68e5e419efa4e61b9486d6854564d6d75a0b5/3.6.0/gcc-4.9-glibc-2.20/2aafc78/include/"
JEMALLOC_LIB=" /mnt/gvfs/third-party2/jemalloc/bcd68e5e419efa4e61b9486d6854564d6d75a0b5/3.6.0/gcc-4.9-glibc-2.20/2aafc78/lib/libjemalloc.a"
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 /mnt/gvfs/third-party2/numa/bbefc39ecbf31d0ca184168eb613ef8d397790ee/2.0.8/gcc-4.9-glibc-2.20/4230243/include/"
NUMA_LIB=" /mnt/gvfs/third-party2/numa/bbefc39ecbf31d0ca184168eb613ef8d397790ee/2.0.8/gcc-4.9-glibc-2.20/4230243/lib/libnuma.a"
NUMA_INCLUDE=" -I $NUMA_BASE/include/"
NUMA_LIB=" $NUMA_BASE/lib/libnuma.a"
CFLAGS+=" -DNUMA"
# location of libunwind
LIBUNWIND="/mnt/gvfs/third-party2/libunwind/1de3b75e0afedfe5585b231bbb340ec7a1542335/1.1/gcc-4.9-glibc-2.20/34235e8/lib/libunwind.a"
LIBUNWIND="$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="$TBB_BASE/lib/libtbb_pic.a"
fi
CFLAGS+=" -DTBB"
# use Intel SSE support for checksum calculations
export USE_SSE=1
BINUTILS="/mnt/gvfs/third-party2/binutils/0b6ad0c88ddd903333a48ae8bff134efac468e4a/2.25/centos6-native/da39a3e/bin"
BINUTILS="$BINUTILS_BASE/bin"
AR="$BINUTILS/ar"
DEPS_INCLUDE="$SNAPPY_INCLUDE $ZLIB_INCLUDE $BZIP_INCLUDE $LZ4_INCLUDE $ZSTD_INCLUDE $GFLAGS_INCLUDE $NUMA_INCLUDE"
DEPS_INCLUDE="$SNAPPY_INCLUDE $ZLIB_INCLUDE $BZIP_INCLUDE $LZ4_INCLUDE $ZSTD_INCLUDE $GFLAGS_INCLUDE $NUMA_INCLUDE $TBB_INCLUDE"
GCC_BASE="/mnt/gvfs/third-party2/gcc/1c67a0b88f64d4d9ced0382d141c76aaa7d62fba/4.9.x/centos6-native/1317bc4"
STDLIBS="-L $GCC_BASE/lib64"
CLANG_BASE="/mnt/gvfs/third-party2/clang/d81444dd214df3d2466734de45bb264a0486acc3/dev"
CLANG_BIN="$CLANG_BASE/centos6-native/af4b1a0/bin"
CLANG_BIN="$CLANG_BASE/bin"
CLANG_LIB="$CLANG_BASE/lib"
CLANG_SRC="$CLANG_BASE/../../src"
CLANG_ANALYZER="$CLANG_BIN/clang++"
CLANG_SCAN_BUILD="$CLANG_BASE/src/clang/tools/scan-build/scan-build"
CLANG_SCAN_BUILD="$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 $GLIBC_INCLUDE"
CFLAGS+=" -isystem $LIBGCC_INCLUDE"
CFLAGS+=" -isystem $GLIBC_INCLUDE"
JEMALLOC=1
else
# clang
CLANG_INCLUDE="$CLANG_BASE/gcc-4.9-glibc-2.20/74c386f/lib/clang/dev/include/"
# clang
CLANG_INCLUDE="$CLANG_LIB/clang/stable/include"
CC="$CLANG_BIN/clang"
CXX="$CLANG_BIN/clang++"
KERNEL_HEADERS_INCLUDE="/mnt/gvfs/third-party2/kernel-headers/ffd14f660a43c4b92717986b1bba66722ef089d0/3.2.18_70_fbk11_00129_gc8882d0/gcc-4.9-glibc-2.20/da39a3e/include"
KERNEL_HEADERS_INCLUDE="$KERNEL_HEADERS_BASE/include"
CFLAGS+=" -B$BINUTILS/gold -nostdinc -nostdlib"
CFLAGS+=" -isystem $LIBGCC_BASE/include/c++/4.9.x "
CFLAGS+=" -isystem $LIBGCC_BASE/include/c++/4.9.x/x86_64-facebook-linux "
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"
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"
EXEC_LDFLAGS+=" -Wl,--dynamic-linker,/usr/local/fbcode/gcc-4.9-glibc-2.20/lib/ld.so"
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+=" $LIBUNWIND"
EXEC_LDFLAGS+=" -Wl,-rpath=/usr/local/fbcode/gcc-4.9-glibc-2.20/lib"
EXEC_LDFLAGS+=" -Wl,-rpath=/usr/local/fbcode/platform007/lib"
# required by libtbb
EXEC_LDFLAGS+=" -ldl"
PLATFORM_LDFLAGS="$LIBGCC_LIBS $GLIBC_LIBS $STDLIBS -lgcc -lstdc++"
EXEC_LDFLAGS_SHARED="$SNAPPY_LIBS $ZLIB_LIBS $BZIP_LIBS $LZ4_LIBS $ZSTD_LIBS $GFLAGS_LIBS"
EXEC_LDFLAGS_SHARED="$SNAPPY_LIBS $ZLIB_LIBS $BZIP_LIBS $LZ4_LIBS $ZSTD_LIBS $GFLAGS_LIBS $TBB_LIBS"
VALGRIND_VER="/mnt/gvfs/third-party2/valgrind/6c45ef049cbf11c2df593addb712cd891049e737/3.10.0/gcc-4.9-glibc-2.20/4230243/bin/"
VALGRIND_VER="$VALGRIND_BASE/bin/"
export CC CXX AR CFLAGS CXXFLAGS EXEC_LDFLAGS EXEC_LDFLAGS_SHARED VALGRIND_VER JEMALLOC_LIB JEMALLOC_INCLUDE CLANG_ANALYZER CLANG_SCAN_BUILD
export CC CXX AR CFLAGS CXXFLAGS EXEC_LDFLAGS EXEC_LDFLAGS_SHARED VALGRIND_VER JEMALLOC_LIB JEMALLOC_INCLUDE CLANG_ANALYZER CLANG_SCAN_BUILD
+13 -2
View File
@@ -267,6 +267,7 @@ DBImpl::DBImpl(const DBOptions& options, const std::string& dbname)
#endif // ROCKSDB_LITE
event_logger_(db_options_.info_log.get()),
bg_work_paused_(0),
bg_compaction_paused_(0),
refitting_level_(false),
opened_successfully_(false) {
env_->GetAbsolutePath(dbname, &db_absolute_path_);
@@ -1829,17 +1830,22 @@ Status DBImpl::CompactFilesImpl(
Status DBImpl::PauseBackgroundWork() {
InstrumentedMutexLock guard_lock(&mutex_);
bg_work_paused_++;
bg_compaction_paused_++;
while (bg_compaction_scheduled_ > 0 || bg_flush_scheduled_ > 0) {
bg_cv_.Wait();
}
bg_work_paused_++;
return Status::OK();
}
Status DBImpl::ContinueBackgroundWork() {
InstrumentedMutexLock guard_lock(&mutex_);
assert(bg_work_paused_ > 0);
assert(bg_compaction_paused_ > 0);
bg_compaction_paused_--;
bg_work_paused_--;
// It's sufficient to check just bg_work_paused_ here since
// bg_work_paused_ is always no greater than bg_compaction_paused_
if (bg_work_paused_ == 0) {
MaybeScheduleFlushOrCompaction();
}
@@ -2339,7 +2345,12 @@ void DBImpl::MaybeScheduleFlushOrCompaction() {
}
}
if (bg_manual_only_) {
if (bg_compaction_paused_ > 0) {
// we paused the background compaction
return;
}
if (bg_manual_only_) {
// only manual compactions are allowed to run. don't schedule automatic
// compactions
return;
+4 -1
View File
@@ -781,9 +781,12 @@ class DBImpl : public DB {
// Unified interface for logging events
EventLogger event_logger_;
// A value of >0 temporarily disables scheduling of background work
// A value of > 0 temporarily disables scheduling of background work
int bg_work_paused_;
// A value of > 0 temporarily disables scheduling of background compaction
int bg_compaction_paused_;
// Guard against multiple concurrent refitting
bool refitting_level_;
+1
View File
@@ -6,6 +6,7 @@
#include <assert.h>
#include <condition_variable>
#include <functional>
#include <mutex>
#include <string>
#include <unordered_set>
+1
View File
@@ -10,6 +10,7 @@
#pragma once
#include <atomic>
#include <functional>
#include <memory>
#include <unordered_map>
#include <vector>