mirror of https://github.com/facebook/rocksdb.git
135 Commits
| Author | SHA1 | Message | Date |
|---|---|---|---|
anand76
|
ee258619be |
Fix missing cases of corruption retries (#13122)
Summary: This PR fixes a few cases where RocksDB was not retrying checksum failure/corruption of file reads with the `verify_and_reconstruct_read` IO option. After fixing these cases, we can almost always successfully open the DB and execute reads even if we see transient corruptions, provided the `FileSystem` supports the `verify_and_reconstruct_read` option. The specific cases fixed in this PR are - 1. CURRENT file 2. IDENTITY file 3. OPTIONS file 4. SST footer Pull Request resolved: https://github.com/facebook/rocksdb/pull/13122 Test Plan: Unit test in `db_io_failure_test.cc` that injects corruption at various stages of DB open and reads Reviewed By: jaykorean Differential Revision: D65617982 Pulled By: anand1976 fbshipit-source-id: 4324b88cc7eee5501ab5df20ef7a95bb12ed3ea7 |
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anand76
|
cabd2d8718 |
Fix a couple of missing cases of retry on corruption (#13007)
Summary: For SST checksum mismatch corruptions in the read path, RocksDB retries the read if the underlying file system supports verification and reconstruction of data (`FSSupportedOps::kVerifyAndReconstructRead`). There were a couple of places where the retry was missing - reading the SST footer and the properties block. This PR fixes the retry in those cases. Pull Request resolved: https://github.com/facebook/rocksdb/pull/13007 Test Plan: Add new unit tests Reviewed By: jaykorean Differential Revision: D62519186 Pulled By: anand1976 fbshipit-source-id: 50aa38f18f2a53531a9fc8d4ccdf34fbf034ed59 |
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Valery Mironov
|
a8a52e5b4d |
Fix AddressSanitizer container-overflow (#12722)
Summary:
```
ERROR: AddressSanitizer: container-overflow on address 0x506000682221 at pc 0x5583da569f76 bp 0x7f0ec8a9ffb0 sp 0x7f0ec8a9f780
WRITE of size 53 at 0x506000682221 thread T29
#0 0x5583da569f75 in pread
https://github.com/facebook/rocksdb/issues/1 0x5583e334fde4 in rocksdb::PosixRandomAccessFile::Read(unsigned long, unsigned long, rocksdb::IOOptions const&, rocksdb::Slice*, char*, rocksdb::IODebugContext*) const /rocksdb/env/io_posix.cc:580:9
https://github.com/facebook/rocksdb/issues/2 0x5583e2cac42b in rocksdb::(anonymous namespace)::CompositeRandomAccessFileWrapper::Read(unsigned long, unsigned long, rocksdb::Slice*, char*) const /rocksdb/env/composite_env.cc:61:21
https://github.com/facebook/rocksdb/issues/3 0x5583e2c8a8e4 in rocksdb::(anonymous namespace)::LegacyRandomAccessFileWrapper::Read(unsigned long, unsigned long, rocksdb::IOOptions const&, rocksdb::Slice*, char*, rocksdb::IODebugContext*) const /rocksdb/env/env.cc:152:41
https://github.com/facebook/rocksdb/issues/4 0x5583e2d6cbfb in rocksdb::RandomAccessFileReader::Read(rocksdb::IOOptions const&, unsigned long, unsigned long, rocksdb::Slice*, char*, std::__2::unique_ptr<char [], std::__2::default_delete<char []>>*, rocksdb::Env::IOPriority) const /rocksdb/file/random_access_file_reader.cc:204:25
https://github.com/facebook/rocksdb/issues/5 0x5583e307c614 in rocksdb::ReadFooterFromFile(rocksdb::IOOptions const&, rocksdb::RandomAccessFileReader*, rocksdb::FilePrefetchBuffer*, unsigned long, rocksdb::Footer*, unsigned long) /rocksdb/table/format.cc:383:17
https://github.com/facebook/rocksdb/issues/6 0x5583e2f88456 in rocksdb::BlockBasedTable::Open(rocksdb::ReadOptions const&, rocksdb::ImmutableOptions const&, rocksdb::EnvOptions const&, rocksdb::BlockBasedTableOptions const&, rocksdb::InternalKeyComparator const&, std::__2::unique_ptr<rocksdb::RandomAccessFileReader, std::__2::default_delete<rocksdb::RandomAccessFileReader>>&&, unsigned long, std::__2::unique_ptr<rocksdb::TableReader, std::__2::default_delete<rocksdb::TableReader>>*, std::__2::shared_ptr<rocksdb::CacheReservationManager>, std::__2::shared_ptr<rocksdb::SliceTransform const> const&, bool, bool, int, bool, unsigned long, bool, rocksdb::TailPrefetchStats*, rocksdb::BlockCacheTracer*, unsigned long, std::__2::basic_string<char, std::__2::char_traits<char>, std::__2::allocator<char>> const&, unsigned long) /rocksdb/table/block_based/block_based_table_reader.cc:610:9
https://github.com/facebook/rocksdb/issues/7 0x5583e2ef7837 in rocksdb::BlockBasedTableFactory::NewTableReader(rocksdb::ReadOptions const&, rocksdb::TableReaderOptions const&, std::__2::unique_ptr<rocksdb::RandomAccessFileReader, std::__2::default_delete<rocksdb::RandomAccessFileReader>>&&, unsigned long, std::__2::unique_ptr<rocksdb::TableReader, std::__2::default_delete<rocksdb::TableReader>>*, bool) const /rocksdb/table/block_based/block_based_table_factory.cc:599:10
https://github.com/facebook/rocksdb/issues/8 0x5583e2ab873c in rocksdb::TableCache::GetTableReader(rocksdb::ReadOptions const&, rocksdb::FileOptions const&, rocksdb::InternalKeyComparator const&, rocksdb::FileDescriptor const&, bool, bool, rocksdb::HistogramImpl*, std::__2::unique_ptr<rocksdb::TableReader, std::__2::default_delete<rocksdb::TableReader>>*, std::__2::shared_ptr<rocksdb::SliceTransform const> const&, bool, int, bool, unsigned long, rocksdb::Temperature) /rocksdb/db/table_cache.cc:142:34
https://github.com/facebook/rocksdb/issues/9 0x5583e2aba5f6 in rocksdb::TableCache::FindTable(rocksdb::ReadOptions const&, rocksdb::FileOptions const&, rocksdb::InternalKeyComparator const&, rocksdb::FileDescriptor const&, rocksdb::Cache::Handle**, std::__2::shared_ptr<rocksdb::SliceTransform const> const&, bool, bool, rocksdb::HistogramImpl*, bool, int, bool, unsigned long, rocksdb::Temperature) /rocksdb/db/table_cache.cc:190:16
https://github.com/facebook/rocksdb/issues/10 0x5583e2abb7e1 in rocksdb::TableCache::NewIterator(rocksdb::ReadOptions const&, rocksdb::FileOptions const&, rocksdb::InternalKeyComparator const&, rocksdb::FileMetaData const&, rocksdb::RangeDelAggregator*, std::__2::shared_ptr<rocksdb::SliceTransform const> const&, rocksdb::TableReader**, rocksdb::HistogramImpl*, rocksdb::TableReaderCaller, rocksdb::Arena*, bool, int, unsigned long, rocksdb::InternalKey const*, rocksdb::InternalKey const*, bool) /rocksdb/db/table_cache.cc:235:9
https://github.com/facebook/rocksdb/issues/11 0x5583e28d14cf in rocksdb::BuildTable(std::__2::basic_string<char, std::__2::char_traits<char>, std::__2::allocator<char>> const&, rocksdb::VersionSet*, rocksdb::ImmutableDBOptions const&, rocksdb::TableBuilderOptions const&, rocksdb::FileOptions const&, rocksdb::TableCache*, rocksdb::InternalIteratorBase<rocksdb::Slice>*, std::__2::vector<std::__2::unique_ptr<rocksdb::FragmentedRangeTombstoneIterator, std::__2::default_delete<rocksdb::FragmentedRangeTombstoneIterator>>, std::__2::allocator<std::__2::unique_ptr<rocksdb::FragmentedRangeTombstoneIterator, std::__2::default_delete<rocksdb::FragmentedRangeTombstoneIterator>>>>, rocksdb::FileMetaData*, std::__2::vector<rocksdb::BlobFileAddition, std::__2::allocator<rocksdb::BlobFileAddition>>*, std::__2::vector<unsigned long, std::__2::allocator<unsigned long>>, unsigned long, unsigned long, rocksdb::SnapshotChecker*, bool, rocksdb::InternalStats*, rocksdb::IOStatus*, std::__2::shared_ptr<rocksdb::IOTracer> const&, rocksdb::BlobFileCreationReason, rocksdb::EventLogger*, int, rocksdb::Env::IOPriority, rocksdb::TableProperties*, rocksdb::Env::WriteLifeTimeHint, std::__2::basic_string<char, std::__2::char_traits<char>, std::__2::allocator<char>> const*, rocksdb::BlobFileCompletionCallback*, unsigned long*, unsigned long*, unsigned long*) /rocksdb/db/builder.cc:335:57
https://github.com/facebook/rocksdb/issues/12 0x5583e29bf29d in rocksdb::FlushJob::WriteLevel0Table() /rocksdb/db/flush_job.cc:919:11
https://github.com/facebook/rocksdb/issues/13 0x5583e29b33ac in rocksdb::FlushJob::Run(rocksdb::LogsWithPrepTracker*, rocksdb::FileMetaData*, bool*) /rocksdb/db/flush_job.cc:276:9
https://github.com/facebook/rocksdb/issues/14 0x5583e27a4781 in rocksdb::DBImpl::FlushMemTableToOutputFile(rocksdb::ColumnFamilyData*, rocksdb::MutableCFOptions const&, bool*, rocksdb::JobContext*, rocksdb::SuperVersionContext*, std::__2::vector<unsigned long, std::__2::allocator<unsigned long>>&, unsigned long, rocksdb::SnapshotChecker*, rocksdb::LogBuffer*, rocksdb::Env::Priority) /rocksdb/db/db_impl/db_impl_compaction_flush.cc:258:19
https://github.com/facebook/rocksdb/issues/15 0x5583e27a7a96 in rocksdb::DBImpl::FlushMemTablesToOutputFiles(rocksdb::autovector<rocksdb::DBImpl::BGFlushArg, 8ul> const&, bool*, rocksdb::JobContext*, rocksdb::LogBuffer*, rocksdb::Env::Priority) /rocksdb/db/db_impl/db_impl_compaction_flush.cc:377:14
https://github.com/facebook/rocksdb/issues/16 0x5583e27d6777 in rocksdb::DBImpl::BackgroundFlush(bool*, rocksdb::JobContext*, rocksdb::LogBuffer*, rocksdb::FlushReason*, rocksdb::Env::Priority) /rocksdb/db/db_impl/db_impl_compaction_flush.cc:2778:14
https://github.com/facebook/rocksdb/issues/17 0x5583e27d14e2 in rocksdb::DBImpl::BackgroundCallFlush(rocksdb::Env::Priority) /rocksdb/db/db_impl/db_impl_compaction_flush.cc:2817:16
https://github.com/facebook/rocksdb/issues/18 0x5583e323d353 in std::__2::__function::__policy_func<void ()>::operator()[abi:ne180100]() const /root/build/3rdParty/llvm/runtimes/include/c++/v1/__functional/function.h:714:12
https://github.com/facebook/rocksdb/issues/19 0x5583e323d353 in std::__2::function<void ()>::operator()() const /root/build/3rdParty/llvm/runtimes/include/c++/v1/__functional/function.h:981:10
https://github.com/facebook/rocksdb/issues/20 0x5583e323d353 in rocksdb::ThreadPoolImpl::Impl::BGThread(unsigned long) /rocksdb/util/threadpool_imp.cc:266:5
https://github.com/facebook/rocksdb/issues/21 0x5583e3243d18 in decltype(std::declval<void (*)(void*)>()(std::declval<rocksdb::BGThreadMetadata*>())) std::__2::__invoke[abi:ne180100]<void (*)(void*), rocksdb::BGThreadMetadata*>(void (*&&)(void*), rocksdb::BGThreadMetadata*&&) /root/build/3rdParty/llvm/runtimes/include/c++/v1/__type_traits/invoke.h:344:25
https://github.com/facebook/rocksdb/issues/22 0x5583e3243d18 in void std::__2::__thread_execute[abi:ne180100]<std::__2::unique_ptr<std::__2::__thread_struct, std::__2::default_delete<std::__2::__thread_struct>>, void (*)(void*), rocksdb::BGThreadMetadata*, 2ul>(std::__2::tuple<std::__2::unique_ptr<std::__2::__thread_struct, std::__2::default_delete<std::__2::__thread_struct>>, void (*)(void*), rocksdb::BGThreadMetadata*>&, std::__2::__tuple_indices<2ul>) /root/build/3rdParty/llvm/runtimes/include/c++/v1/__thread/thread.h:193:3
https://github.com/facebook/rocksdb/issues/23 0x5583e3243d18 in void* std::__2::__thread_proxy[abi:ne180100]<std::__2::tuple<std::__2::unique_ptr<std::__2::__thread_struct, std::__2::default_delete<std::__2::__thread_struct>>, void (*)(void*), rocksdb::BGThreadMetadata*>>(void*) /root/build/3rdParty/llvm/runtimes/include/c++/v1/__thread/thread.h:202:3
https://github.com/facebook/rocksdb/issues/24 0x5583da5e819e in asan_thread_start(void*) crtstuff.c
https://github.com/facebook/rocksdb/issues/25 0x7f0eda362a93 in start_thread nptl/pthread_create.c:447:8
https://github.com/facebook/rocksdb/issues/26 0x7f0eda3efc3b in clone3 misc/../sysdeps/unix/sysv/linux/x86_64/clone3.S:78
0x506000682221 is located 1 bytes inside of 56-byte region [0x506000682220,0x506000682258)
allocated by thread T29 here:
#0 0x5583da6281d1 in operator new(unsigned long)
https://github.com/facebook/rocksdb/issues/1 0x5583da6c987d in __libcpp_operator_new<unsigned long> /root/build/3rdParty/llvm/runtimes/include/c++/v1/new:271:10
https://github.com/facebook/rocksdb/issues/2 0x5583da6c987d in __libcpp_allocate /root/build/3rdParty/llvm/runtimes/include/c++/v1/new:295:10
https://github.com/facebook/rocksdb/issues/3 0x5583da6c987d in allocate /root/build/3rdParty/llvm/runtimes/include/c++/v1/__memory/allocator.h:125:32
https://github.com/facebook/rocksdb/issues/4 0x5583da6c987d in allocate_at_least /root/build/3rdParty/llvm/runtimes/include/c++/v1/__memory/allocator.h:131:13
https://github.com/facebook/rocksdb/issues/5 0x5583da6c987d in allocate_at_least<std::__2::allocator<char> > /root/build/3rdParty/llvm/runtimes/include/c++/v1/__memory/allocate_at_least.h:34:20
https://github.com/facebook/rocksdb/issues/6 0x5583da6c987d in __allocate_at_least<std::__2::allocator<char> > /root/build/3rdParty/llvm/runtimes/include/c++/v1/__memory/allocate_at_least.h:42:10
https://github.com/facebook/rocksdb/issues/7 0x5583da6c987d in std::__2::basic_string<char, std::__2::char_traits<char>, std::__2::allocator<char>>::__shrink_or_extend[abi:ne180100](unsigned long) /root/build/3rdParty/llvm/runtimes/include/c++/v1/string:3236:27
https://github.com/facebook/rocksdb/issues/8 0x5583e307c5aa in std::__2::basic_string<char, std::__2::char_traits<char>, std::__2::allocator<char>>::reserve(unsigned long) /root/build/3rdParty/llvm/runtimes/include/c++/v1/string:3207:3
https://github.com/facebook/rocksdb/issues/9 0x5583e307c5aa in rocksdb::ReadFooterFromFile(rocksdb::IOOptions const&, rocksdb::RandomAccessFileReader*, rocksdb::FilePrefetchBuffer*, unsigned long, rocksdb::Footer*, unsigned long) /rocksdb/table/format.cc:382:18
https://github.com/facebook/rocksdb/issues/10 0x5583e2f88456 in rocksdb::BlockBasedTable::Open(rocksdb::ReadOptions const&, rocksdb::ImmutableOptions const&, rocksdb::EnvOptions const&, rocksdb::BlockBasedTableOptions const&, rocksdb::InternalKeyComparator const&, std::__2::unique_ptr<rocksdb::RandomAccessFileReader, std::__2::default_delete<rocksdb::RandomAccessFileReader>>&&, unsigned long, std::__2::unique_ptr<rocksdb::TableReader, std::__2::default_delete<rocksdb::TableReader>>*, std::__2::shared_ptr<rocksdb::CacheReservationManager>, std::__2::shared_ptr<rocksdb::SliceTransform const> const&, bool, bool, int, bool, unsigned long, bool, rocksdb::TailPrefetchStats*, rocksdb::BlockCacheTracer*, unsigned long, std::__2::basic_string<char, std::__2::char_traits<char>, std::__2::allocator<char>> const&, unsigned long) /rocksdb/table/block_based/block_based_table_reader.cc:610:9
https://github.com/facebook/rocksdb/issues/11 0x5583e2ef7837 in rocksdb::BlockBasedTableFactory::NewTableReader(rocksdb::ReadOptions const&, rocksdb::TableReaderOptions const&, std::__2::unique_ptr<rocksdb::RandomAccessFileReader, std::__2::default_delete<rocksdb::RandomAccessFileReader>>&&, unsigned long, std::__2::unique_ptr<rocksdb::TableReader, std::__2::default_delete<rocksdb::TableReader>>*, bool) const /rocksdb/table/block_based/block_based_table_factory.cc:599:10
https://github.com/facebook/rocksdb/issues/12 0x5583e2ab873c in rocksdb::TableCache::GetTableReader(rocksdb::ReadOptions const&, rocksdb::FileOptions const&, rocksdb::InternalKeyComparator const&, rocksdb::FileDescriptor const&, bool, bool, rocksdb::HistogramImpl*, std::__2::unique_ptr<rocksdb::TableReader, std::__2::default_delete<rocksdb::TableReader>>*, std::__2::shared_ptr<rocksdb::SliceTransform const> const&, bool, int, bool, unsigned long, rocksdb::Temperature) /rocksdb/db/table_cache.cc:142:34
https://github.com/facebook/rocksdb/issues/13 0x5583e2aba5f6 in rocksdb::TableCache::FindTable(rocksdb::ReadOptions const&, rocksdb::FileOptions const&, rocksdb::InternalKeyComparator const&, rocksdb::FileDescriptor const&, rocksdb::Cache::Handle**, std::__2::shared_ptr<rocksdb::SliceTransform const> const&, bool, bool, rocksdb::HistogramImpl*, bool, int, bool, unsigned long, rocksdb::Temperature) /rocksdb/db/table_cache.cc:190:16
https://github.com/facebook/rocksdb/issues/14 0x5583e2abb7e1 in rocksdb::TableCache::NewIterator(rocksdb::ReadOptions const&, rocksdb::FileOptions const&, rocksdb::InternalKeyComparator const&, rocksdb::FileMetaData const&, rocksdb::RangeDelAggregator*, std::__2::shared_ptr<rocksdb::SliceTransform const> const&, rocksdb::TableReader**, rocksdb::HistogramImpl*, rocksdb::TableReaderCaller, rocksdb::Arena*, bool, int, unsigned long, rocksdb::InternalKey const*, rocksdb::InternalKey const*, bool) /rocksdb/db/table_cache.cc:235:9
https://github.com/facebook/rocksdb/issues/15 0x5583e28d14cf in rocksdb::BuildTable(std::__2::basic_string<char, std::__2::char_traits<char>, std::__2::allocator<char>> const&, rocksdb::VersionSet*, rocksdb::ImmutableDBOptions const&, rocksdb::TableBuilderOptions const&, rocksdb::FileOptions const&, rocksdb::TableCache*, rocksdb::InternalIteratorBase<rocksdb::Slice>*, std::__2::vector<std::__2::unique_ptr<rocksdb::FragmentedRangeTombstoneIterator, std::__2::default_delete<rocksdb::FragmentedRangeTombstoneIterator>>, std::__2::allocator<std::__2::unique_ptr<rocksdb::FragmentedRangeTombstoneIterator, std::__2::default_delete<rocksdb::FragmentedRangeTombstoneIterator>>>>, rocksdb::FileMetaData*, std::__2::vector<rocksdb::BlobFileAddition, std::__2::allocator<rocksdb::BlobFileAddition>>*, std::__2::vector<unsigned long, std::__2::allocator<unsigned long>>, unsigned long, unsigned long, rocksdb::SnapshotChecker*, bool, rocksdb::InternalStats*, rocksdb::IOStatus*, std::__2::shared_ptr<rocksdb::IOTracer> const&, rocksdb::BlobFileCreationReason, rocksdb::EventLogger*, int, rocksdb::Env::IOPriority, rocksdb::TableProperties*, rocksdb::Env::WriteLifeTimeHint, std::__2::basic_string<char, std::__2::char_traits<char>, std::__2::allocator<char>> const*, rocksdb::BlobFileCompletionCallback*, unsigned long*, unsigned long*, unsigned long*) /rocksdb/db/builder.cc:335:57
https://github.com/facebook/rocksdb/issues/16 0x5583e29bf29d in rocksdb::FlushJob::WriteLevel0Table() /rocksdb/db/flush_job.cc:919:11
https://github.com/facebook/rocksdb/issues/17 0x5583e29b33ac in rocksdb::FlushJob::Run(rocksdb::LogsWithPrepTracker*, rocksdb::FileMetaData*, bool*) /rocksdb/db/flush_job.cc:276:9
https://github.com/facebook/rocksdb/issues/18 0x5583e27a4781 in rocksdb::DBImpl::FlushMemTableToOutputFile(rocksdb::ColumnFamilyData*, rocksdb::MutableCFOptions const&, bool*, rocksdb::JobContext*, rocksdb::SuperVersionContext*, std::__2::vector<unsigned long, std::__2::allocator<unsigned long>>&, unsigned long, rocksdb::SnapshotChecker*, rocksdb::LogBuffer*, rocksdb::Env::Priority) /rocksdb/db/db_impl/db_impl_compaction_flush.cc:258:19
https://github.com/facebook/rocksdb/issues/19 0x5583e27a7a96 in rocksdb::DBImpl::FlushMemTablesToOutputFiles(rocksdb::autovector<rocksdb::DBImpl::BGFlushArg, 8ul> const&, bool*, rocksdb::JobContext*, rocksdb::LogBuffer*, rocksdb::Env::Priority) /rocksdb/db/db_impl/db_impl_compaction_flush.cc:377:14
https://github.com/facebook/rocksdb/issues/20 0x5583e27d6777 in rocksdb::DBImpl::BackgroundFlush(bool*, rocksdb::JobContext*, rocksdb::LogBuffer*, rocksdb::FlushReason*, rocksdb::Env::Priority) /rocksdb/db/db_impl/db_impl_compaction_flush.cc:2778:14
https://github.com/facebook/rocksdb/issues/21 0x5583e27d14e2 in rocksdb::DBImpl::BackgroundCallFlush(rocksdb::Env::Priority) /rocksdb/db/db_impl/db_impl_compaction_flush.cc:2817:16
https://github.com/facebook/rocksdb/issues/22 0x5583e323d353 in std::__2::__function::__policy_func<void ()>::operator()[abi:ne180100]() const /root/build/3rdParty/llvm/runtimes/include/c++/v1/__functional/function.h:714:12
https://github.com/facebook/rocksdb/issues/23 0x5583e323d353 in std::__2::function<void ()>::operator()() const /root/build/3rdParty/llvm/runtimes/include/c++/v1/__functional/function.h:981:10
https://github.com/facebook/rocksdb/issues/24 0x5583e323d353 in rocksdb::ThreadPoolImpl::Impl::BGThread(unsigned long) /rocksdb/util/threadpool_imp.cc:266:5
https://github.com/facebook/rocksdb/issues/25 0x5583e3243d18 in decltype(std::declval<void (*)(void*)>()(std::declval<rocksdb::BGThreadMetadata*>())) std::__2::__invoke[abi:ne180100]<void (*)(void*), rocksdb::BGThreadMetadata*>(void (*&&)(void*), rocksdb::BGThreadMetadata*&&) /root/build/3rdParty/llvm/runtimes/include/c++/v1/__type_traits/invoke.h:344:25
https://github.com/facebook/rocksdb/issues/26 0x5583e3243d18 in void std::__2::__thread_execute[abi:ne180100]<std::__2::unique_ptr<std::__2::__thread_struct, std::__2::default_delete<std::__2::__thread_struct>>, void (*)(void*), rocksdb::BGThreadMetadata*, 2ul>(std::__2::tuple<std::__2::unique_ptr<std::__2::__thread_struct, std::__2::default_delete<std::__2::__thread_struct>>, void (*)(void*), rocksdb::BGThreadMetadata*>&, std::__2::__tuple_indices<2ul>) /root/build/3rdParty/llvm/runtimes/include/c++/v1/__thread/thread.h:193:3
https://github.com/facebook/rocksdb/issues/27 0x5583e3243d18 in void* std::__2::__thread_proxy[abi:ne180100]<std::__2::tuple<std::__2::unique_ptr<std::__2::__thread_struct, std::__2::default_delete<std::__2::__thread_struct>>, void (*)(void*), rocksdb::BGThreadMetadata*>>(void*) /root/build/3rdParty/llvm/runtimes/include/c++/v1/__thread/thread.h:202:3
https://github.com/facebook/rocksdb/issues/28 0x5583da5e819e in asan_thread_start(void*) crtstuff.c
HINT: if you don't care about these errors you may set ASAN_OPTIONS=detect_container_overflow=0.
If you suspect a false positive see also: https://github.com/google/sanitizers/wiki/AddressSanitizerContainerOverflow.
AddressSanitizer:container-overflow in pread
Shadow bytes around the buggy address:
0x506000681f80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x506000682000: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x506000682080: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x506000682100: fa fa fa fa fa fa fa fa fa fa fa fa 00 00 00 00
0x506000682180: 00 00 00 fa fa fa fa fa fa fa fa fa fa fa fa fa
=>0x506000682200: fa fa fa fa[01]fc fc fc fc fc fc fa fa fa fa fa
0x506000682280: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x506000682300: fa fa fa fa fa fa fa fa 00 00 00 00 00 00 00 01
0x506000682380: fa fa fa fa fd fd fd fd fd fd fd fd fa fa fa fa
0x506000682400: fd fd fd fd fd fd fd fa fa fa fa fa fd fd fd fd
0x506000682480: fd fd fd fd fa fa fa fa fd fd fd fd fd fd fd fd
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
```
Pull Request resolved: https://github.com/facebook/rocksdb/pull/12722
Reviewed By: hx235
Differential Revision: D58118264
Pulled By: ajkr
fbshipit-source-id: 0dd914c886c022d82697b769d664ba52de0770de
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Peter Dillinger
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4e60663b31 |
Remove unnecessary, confusing 'extern' (#12300)
Summary: In C++, `extern` is redundant in a number of cases: * "Global" function declarations and definitions * "Global" variable definitions when already declared `extern` For consistency and simplicity, I've removed these in code that *we own*. In a couple of cases, I removed obsolete declarations, and for MagicNumber constants, I have consolidated the declarations into a header file (format.h) as standard best practice would prescribe. Pull Request resolved: https://github.com/facebook/rocksdb/pull/12300 Test Plan: no functional changes, CI Reviewed By: ajkr Differential Revision: D53148629 Pulled By: pdillinger fbshipit-source-id: fb8d927959892e03af09b0c0d542b0a3b38fd886 |
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git-hulk
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f11a0237b6 |
sst_dump: display metaindex_handle and the index_handle's offset and size in footer information (#12204)
Summary: Before applying this PR, the footer details: ``` Footer Details: -------------------------------------- metaindex handle: B0E499405C index handle: 8AC49940CD17 table_magic_number: 9863518390377041911 format version: 5 ``` and after ``` Footer Details: -------------------------------------- metaindex handle: B0E499405C offset: 134640176 size: 92 index handle: 8AC49940CD17 offset: 134636042 size: 3021 table_magic_number: 9863518390377041911 format version: 5 ``` Pull Request resolved: https://github.com/facebook/rocksdb/pull/12204 Reviewed By: cbi42 Differential Revision: D52547832 Pulled By: ajkr fbshipit-source-id: 5ff58ed347f9caf919bbdc6b242e3306d2525653 |
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Andrew Kryczka
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06dc32ef25 |
internal_repo_rocksdb (435146444452818992) (#12115)
Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/12115 Reviewed By: jowlyzhang Differential Revision: D51745742 Pulled By: ajkr fbshipit-source-id: 67000d07783b413924798dd9c1751da27e119d53 |
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Changyu Bi
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c2aad555c3 |
Add `CompressionOptions::checksum` for enabling ZSTD checksum (#11666)
Summary:
Optionally enable zstd checksum flag (
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Hui Xiao
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9a034801ce |
Group rocksdb.sst.read.micros stat by different user read IOActivity + misc (#11444)
Summary:
**Context/Summary:**
- Similar to https://github.com/facebook/rocksdb/pull/11288 but for user read such as `Get(), MultiGet(), DBIterator::XXX(), Verify(File)Checksum()`.
- For this, I refactored some user-facing `MultiGet` calls in `TransactionBase` and various types of `DB` so that it does not call a user-facing `Get()` but `GetImpl()` for passing the `ReadOptions::io_activity` check (see PR conversation)
- New user read stats breakdown are guarded by `kExceptDetailedTimers` since measurement shows they have 4-5% regression to the upstream/main.
- Misc
- More refactoring: with https://github.com/facebook/rocksdb/pull/11288, we complete passing `ReadOptions/IOOptions` to FS level. So we can now replace the previously [added](https://github.com/facebook/rocksdb/pull/9424) `rate_limiter_priority` parameter in `RandomAccessFileReader`'s `Read/MultiRead/Prefetch()` with `IOOptions::rate_limiter_priority`
- Also, `ReadAsync()` call time is measured in `SST_READ_MICRO` now
Pull Request resolved: https://github.com/facebook/rocksdb/pull/11444
Test Plan:
- CI fake db crash/stress test
- Microbenchmarking
**Build** `make clean && ROCKSDB_NO_FBCODE=1 DEBUG_LEVEL=0 make -jN db_basic_bench`
- google benchmark version:
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Peter Dillinger
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7a1b0207e6 |
format_version=6 and context-aware block checksums (#9058)
Summary:
## Context checksum
All RocksDB checksums currently use 32 bits of checking
power, which should be 1 in 4 billion false negative (FN) probability (failing to
detect corruption). This is true for random corruptions, and in some cases
small corruptions are guaranteed to be detected. But some possible
corruptions, such as in storage metadata rather than storage payload data,
would have a much higher FN rate. For example:
* Data larger than one SST block is replaced by data from elsewhere in
the same or another SST file. Especially with block_align=true, the
probability of exact block size match is probably around 1 in 100, making
the FN probability around that same. Without `block_align=true` the
probability of same block start location is probably around 1 in 10,000,
for FN probability around 1 in a million.
To solve this problem in new format_version=6, we add "context awareness"
to block checksum checks. The stored and expected checksum value is
modified based on the block's position in the file and which file it is in. The
modifications are cleverly chosen so that, for example
* blocks within about 4GB of each other are guaranteed to use different context
* blocks that are offset by exactly some multiple of 4GiB are guaranteed to use
different context
* files generated by the same process are guaranteed to use different context
for the same offsets, until wrap-around after 2^32 - 1 files
Thus, with format_version=6, if a valid SST block and checksum is misplaced,
its checksum FN probability should be essentially ideal, 1 in 4B.
## Footer checksum
This change also adds checksum protection to the SST footer (with
format_version=6), for the first time without relying on whole file checksum.
To prevent a corruption of the format_version in the footer (e.g. 6 -> 5) to
defeat the footer checksum, we change much of the footer data format
including an "extended magic number" in format_version 6 that would be
interpreted as empty index and metaindex block handles in older footer
versions. We also change the encoding of handles to free up space for
other new data in footer.
## More detail: making space in footer
In order to keep footer the same size in format_version=6 (avoid change to IO
patterns), we have to free up some space for new data. We do this two ways:
* Metaindex block handle is encoded down to 4 bytes (from 10) by assuming
it immediately precedes the footer, and by assuming it is < 4GB.
* Index block handle is moved into metaindex. (I don't know why it was
in footer to begin with.)
## Performance
In case of small performance penalty, I've made a "pay as you go" optimization
to compensate: replace `MutableCFOptions` in BlockBasedTableBuilder::Rep
with the only field used in that structure after construction: `prefix_extractor`.
This makes the PR an overall performance improvement (results below).
Nevertheless I'm seeing essentially no difference going from fv=5 to fv=6,
even including that improvement for both. That's based on extreme case table
write performance testing, many files with many blocks. This is relatively
checksum intensive (small blocks) and salt generation intensive (small files).
```
(for I in `seq 1 100`; do TEST_TMPDIR=/dev/shm/dbbench2 ./db_bench -benchmarks=fillseq -memtablerep=vector -disable_wal=1 -allow_concurrent_memtable_write=false -num=3000000 -compaction_style=2 -fifo_compaction_max_table_files_size_mb=10000 -fifo_compaction_allow_compaction=0 -write_buffer_size=100000 -compression_type=none -block_size=1000; done) 2>&1 | grep micros/op | tee out
awk '{ tot += $5; n += 1; } END { print int(1.0 * tot / n) }' < out
```
Each value below is ops/s averaged over 100 runs, run simultaneously with competing
configuration for load fairness
Before -> after (both fv=5): 483530 -> 483673 (negligible)
Re-run 1: 480733 -> 485427 (1.0% faster)
Re-run 2: 483821 -> 484541 (0.1% faster)
Before (fv=5) -> after (fv=6): 482006 -> 485100 (0.6% faster)
Re-run 1: 482212 -> 485075 (0.6% faster)
Re-run 2: 483590 -> 484073 (0.1% faster)
After fv=5 -> after fv=6: 483878 -> 485542 (0.3% faster)
Re-run 1: 485331 -> 483385 (0.4% slower)
Re-run 2: 485283 -> 483435 (0.4% slower)
Re-run 3: 483647 -> 486109 (0.5% faster)
Pull Request resolved: https://github.com/facebook/rocksdb/pull/9058
Test Plan:
unit tests included (table_test, db_properties_test, salt in env_test). General DB tests
and crash test updated to test new format_version.
Also temporarily updated the default format version to 6 and saw some test failures. Almost all
were due to an inadvertent additional read in VerifyChecksum to verify the index block checksum,
though it's arguably a bug that VerifyChecksum does not appear to (re-)verify the index block
checksum, just assuming it was verified in opening the index reader (probably *usually* true but
probably not always true). Some other concerns about VerifyChecksum are left in FIXME
comments. The only remaining test failure on change of default (in block_fetcher_test) now
has a comment about how to upgrade the test.
The format compatibility test does not need updating because we have not updated the default
format_version.
Reviewed By: ajkr, mrambacher
Differential Revision: D33100915
Pulled By: pdillinger
fbshipit-source-id: 8679e3e572fa580181a737fd6d113ed53c5422ee
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Peter Dillinger
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206fdea3d9 |
Change internal headers with duplicate names (#11408)
Summary: In IDE navigation I find it annoying that there are two statistics.h files (etc.) and often land on the wrong one. Here I migrate several headers to use the blah.h <- blah_impl.h <- blah.cc idiom. Although clang-format wants "blah.h" to be the top include for "blah.cc", I think overall this is an improvement. No public API changes. Pull Request resolved: https://github.com/facebook/rocksdb/pull/11408 Test Plan: existing tests Reviewed By: ltamasi Differential Revision: D45456696 Pulled By: pdillinger fbshipit-source-id: 809d931253f3272c908cf5facf7e1d32fc507373 |
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Peter Dillinger
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d79be3dca2 |
Changes and enhancements to compression stats, thresholds (#11388)
Summary: ## Option API updates * Add new CompressionOptions::max_compressed_bytes_per_kb, which corresponds to 1024.0 / min allowable compression ratio. This avoids the hard-coded minimum ratio of 8/7. * Remove unnecessary constructor for CompressionOptions. * Document undocumented CompressionOptions. Use idiom for default values shown clearly in one place (not precariously repeated). ## Stat API updates * Deprecate the BYTES_COMPRESSED, BYTES_DECOMPRESSED histograms. Histograms incur substantial extra space & time costs compared to tickers, and the distribution of uncompressed data block sizes tends to be uninteresting. If we're interested in that distribution, I don't see why it should be limited to blocks stored as compressed. * Deprecate the NUMBER_BLOCK_NOT_COMPRESSED ticker, because the name is very confusing. * New or existing tickers relevant to compression: * BYTES_COMPRESSED_FROM * BYTES_COMPRESSED_TO * BYTES_COMPRESSION_BYPASSED * BYTES_COMPRESSION_REJECTED * COMPACT_WRITE_BYTES + FLUSH_WRITE_BYTES (both existing) * NUMBER_BLOCK_COMPRESSED (existing) * NUMBER_BLOCK_COMPRESSION_BYPASSED * NUMBER_BLOCK_COMPRESSION_REJECTED * BYTES_DECOMPRESSED_FROM * BYTES_DECOMPRESSED_TO We can compute a number of things with these stats: * "Successful" compression ratio: BYTES_COMPRESSED_FROM / BYTES_COMPRESSED_TO * Compression ratio of data on which compression was attempted: (BYTES_COMPRESSED_FROM + BYTES_COMPRESSION_REJECTED) / (BYTES_COMPRESSED_TO + BYTES_COMPRESSION_REJECTED) * Compression ratio of data that could be eligible for compression: (BYTES_COMPRESSED_FROM + X) / (BYTES_COMPRESSED_TO + X) where X = BYTES_COMPRESSION_REJECTED + NUMBER_BLOCK_COMPRESSION_REJECTED * Overall SST compression ratio (compression disabled vs. actual): (Y - BYTES_COMPRESSED_TO + BYTES_COMPRESSED_FROM) / Y where Y = COMPACT_WRITE_BYTES + FLUSH_WRITE_BYTES Keeping _REJECTED separate from _BYPASSED helps us to understand "wasted" CPU time in compression. ## BlockBasedTableBuilder Various small refactorings, optimizations, and name clean-ups. Pull Request resolved: https://github.com/facebook/rocksdb/pull/11388 Test Plan: unit tests added * `options_settable_test.cc`: use non-deprecated idiom for configuring CompressionOptions from string. The old idiom is tested elsewhere and does not need to be updated to support the new field. Reviewed By: ajkr Differential Revision: D45128202 Pulled By: pdillinger fbshipit-source-id: 5a652bf5c022b7ec340cf79018cccf0686962803 |
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sdong
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4720ba4391 |
Remove RocksDB LITE (#11147)
Summary: We haven't been actively mantaining RocksDB LITE recently and the size must have been gone up significantly. We are removing the support. Most of changes were done through following comments: unifdef -m -UROCKSDB_LITE `git grep -l ROCKSDB_LITE | egrep '[.](cc|h)'` by Peter Dillinger. Others changes were manually applied to build scripts, CircleCI manifests, ROCKSDB_LITE is used in an expression and file db_stress_test_base.cc. Pull Request resolved: https://github.com/facebook/rocksdb/pull/11147 Test Plan: See CI Reviewed By: pdillinger Differential Revision: D42796341 fbshipit-source-id: 4920e15fc2060c2cd2221330a6d0e5e65d4b7fe2 |
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Peter Dillinger
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433d7e4594 |
Improve error messages for SST footer and size errors (#11009)
Summary: Previously, you could get a format_version error if SST file size was too small in manifest, or a weird "too short" error if too big in manifest. Now we ensure: * Magic number error is reported first if we attempt to open an SST file and the footer is completely bad. * Footer errors are reported with affected file. * If manifest file size doesn't match actual, then the error includes expected and actual sizes (if an error is reported; in some cases we allow the file to be too big) Pull Request resolved: https://github.com/facebook/rocksdb/pull/11009 Test Plan: unit tests added, some manual Previously, the code for "file too short" in footer processing was only covered by some tests attempting to verify SST checksums on non-SST files (fixed). Reviewed By: siying Differential Revision: D41656272 Pulled By: pdillinger fbshipit-source-id: 3da32702eb5aaedbea0e5e74742ad57edd7ad3df |
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Peter Dillinger
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ef443cead4 |
Refactor to avoid confusing "raw block" (#10408)
Summary: We have a lot of confusing code because of mixed, sometimes completely opposite uses of of the term "raw block" or "raw contents", sometimes within the same source file. For example, in `BlockBasedTableBuilder`, `raw_block_contents` and `raw_size` generally referred to uncompressed block contents and size, while `WriteRawBlock` referred to writing a block that is already compressed if it is going to be. Meanwhile, in `BlockBasedTable`, `raw_block_contents` either referred to a (maybe compressed) block with trailer, or a maybe compressed block maybe without trailer. (Note: left as follow-up work to use C++ typing to better sort out the various kinds of BlockContents.) This change primarily tries to apply some consistent terminology around the kinds of block representations, avoiding the unclear "raw". (Any meaning of "raw" assumes some bias toward the storage layer or toward the logical data layer.) Preferred terminology: * **Serialized block** - bytes that go into storage. For block-based table (usually the case) this includes the block trailer. WART: block `size` may or may not include the trailer; need to be clear about whether it does or not. * **Maybe compressed block** - like a serialized block, but without the trailer (or no promise of including a trailer). Must be accompanied by a CompressionType. * **Uncompressed block** - "payload" bytes that are either stored with no compression, used as input to compression function, or result of decompression function. * **Parsed block** - an in-memory form of a block in block cache, as it is used by the table reader. Different C++ types are used depending on the block type (see block_like_traits.h). Other refactorings: * Misc corrections/improvements of internal API comments * Remove a few misleading / unhelpful / redundant comments. * Use move semantics in some places to simplify contracts * Use better parameter names to indicate which parameters are used for outputs * Remove some extraneous `extern` * Various clean-ups to `CacheDumperImpl` (mostly unnecessary code) Pull Request resolved: https://github.com/facebook/rocksdb/pull/10408 Test Plan: existing tests Reviewed By: akankshamahajan15 Differential Revision: D38172617 Pulled By: pdillinger fbshipit-source-id: ccb99299f324ac5ca46996d34c5089621a4f260c |
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Peter Dillinger
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6de7081cf3 |
Always verify SST unique IDs on SST file open (#10532)
Summary: Although we've been tracking SST unique IDs in the DB manifest unconditionally, checking has been opt-in and with an extra pass at DB::Open time. This changes the behavior of `verify_sst_unique_id_in_manifest` to check unique ID against manifest every time an SST file is opened through table cache (normal DB operations), replacing the explicit pass over files at DB::Open time. This change also enables the option by default and removes the "EXPERIMENTAL" designation. One possible criticism is that the option no longer ensures the integrity of a DB at Open time. This is far from an all-or-nothing issue. Verifying the IDs of all SST files hardly ensures all the data in the DB is readable. (VerifyChecksum is supposed to do that.) Also, with max_open_files=-1 (default, extremely common), all SST files are opened at DB::Open time anyway. Implementation details: * `VerifySstUniqueIdInManifest()` functions are the extra/explicit pass that is now removed. * Unit tests that manipulate/corrupt table properties have to opt out of this check, because that corrupts the "actual" unique id. (And even for testing we don't currently have a mechanism to set "no unique id" in the in-memory file metadata for new files.) * A lot of other unit test churn relates to (a) default checking on, and (b) checking on SST open even without DB::Open (e.g. on flush) * Use `FileMetaData` for more `TableCache` operations (in place of `FileDescriptor`) so that we have access to the unique_id whenever we might need to open an SST file. **There is the possibility of performance impact because we can no longer use the more localized `fd` part of an `FdWithKeyRange` but instead follow the `file_metadata` pointer. However, this change (possible regression) is only done for `GetMemoryUsageByTableReaders`.** * Removed a completely unnecessary constructor overload of `TableReaderOptions` Possible follow-up: * Verification only happens when opening through table cache. Are there more places where this should happen? * Improve error message when there is a file size mismatch vs. manifest (FIXME added in the appropriate place). * I'm not sure there's a justification for `FileDescriptor` to be distinct from `FileMetaData`. * I'm skeptical that `FdWithKeyRange` really still makes sense for optimizing some data locality by duplicating some data in memory, but I could be wrong. * An unnecessary overload of NewTableReader was recently added, in the public API nonetheless (though unusable there). It should be cleaned up to put most things under `TableReaderOptions`. Pull Request resolved: https://github.com/facebook/rocksdb/pull/10532 Test Plan: updated unit tests Performance test showing no significant difference (just noise I think): `./db_bench -benchmarks=readwhilewriting[-X10] -num=3000000 -disable_wal=1 -bloom_bits=8 -write_buffer_size=1000000 -target_file_size_base=1000000` Before: readwhilewriting [AVG 10 runs] : 68702 (± 6932) ops/sec After: readwhilewriting [AVG 10 runs] : 68239 (± 7198) ops/sec Reviewed By: jay-zhuang Differential Revision: D38765551 Pulled By: pdillinger fbshipit-source-id: a827a708155f12344ab2a5c16e7701c7636da4c2 |
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gitbw95
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4da34b97ee |
Set Read rate limiter priority dynamically and pass it to FS (#9996)
Summary: ### Context: Background compactions and flush generate large reads and writes, and can be long running, especially for universal compaction. In some cases, this can impact foreground reads and writes by users. ### Solution User, Flush, and Compaction reads share some code path. For this task, we update the rate_limiter_priority in ReadOptions for code paths (e.g. FindTable (mainly in BlockBasedTable::Open()) and various iterators), and eventually update the rate_limiter_priority in IOOptions for FSRandomAccessFile. **This PR is for the Read path.** The **Read:** dynamic priority for different state are listed as follows: | State | Normal | Delayed | Stalled | | ----- | ------ | ------- | ------- | | Flush (verification read in BuildTable()) | IO_USER | IO_USER | IO_USER | | Compaction | IO_LOW | IO_USER | IO_USER | | User | User provided | User provided | User provided | We will respect the read_options that the user provided and will not set it. The only sst read for Flush is the verification read in BuildTable(). It claims to be "regard as user read". **Details** 1. Set read_options.rate_limiter_priority dynamically: - User: Do not update the read_options. Use the read_options that the user provided. - Compaction: Update read_options in CompactionJob::ProcessKeyValueCompaction(). - Flush: Update read_options in BuildTable(). 2. Pass the rate limiter priority to FSRandomAccessFile functions: - After calling the FindTable(), read_options is passed through GetTableReader(table_cache.cc), BlockBasedTableFactory::NewTableReader(block_based_table_factory.cc), and BlockBasedTable::Open(). The Open() needs some updates for the ReadOptions variable and the updates are also needed for the called functions, including PrefetchTail(), PrepareIOOptions(), ReadFooterFromFile(), ReadMetaIndexblock(), ReadPropertiesBlock(), PrefetchIndexAndFilterBlocks(), and ReadRangeDelBlock(). - In RandomAccessFileReader, the functions to be updated include Read(), MultiRead(), ReadAsync(), and Prefetch(). - Update the downstream functions of NewIndexIterator(), NewDataBlockIterator(), and BlockBasedTableIterator(). ### Test Plans Add unit tests. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9996 Reviewed By: anand1976 Differential Revision: D36452483 Pulled By: gitbw95 fbshipit-source-id: 60978204a4f849bb9261cb78d9bc1cb56d6008cf |
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sdong
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736a7b5433 |
Remove own ToString() (#9955)
Summary: ToString() is created as some platform doesn't support std::to_string(). However, we've already used std::to_string() by mistake for 16 months (in db/db_info_dumper.cc). This commit just remove ToString(). Pull Request resolved: https://github.com/facebook/rocksdb/pull/9955 Test Plan: Watch CI tests Reviewed By: riversand963 Differential Revision: D36176799 fbshipit-source-id: bdb6dcd0e3a3ab96a1ac810f5d0188f684064471 |
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Andrew Kryczka
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babe56ddba |
Add rate limiter priority to ReadOptions (#9424)
Summary: Users can set the priority for file reads associated with their operation by setting `ReadOptions::rate_limiter_priority` to something other than `Env::IO_TOTAL`. Rate limiting `VerifyChecksum()` and `VerifyFileChecksums()` is the motivation for this PR, so it also includes benchmarks and minor bug fixes to get that working. `RandomAccessFileReader::Read()` already had support for rate limiting compaction reads. I changed that rate limiting to be non-specific to compaction, but rather performed according to the passed in `Env::IOPriority`. Now the compaction read rate limiting is supported by setting `rate_limiter_priority = Env::IO_LOW` on its `ReadOptions`. There is no default value for the new `Env::IOPriority` parameter to `RandomAccessFileReader::Read()`. That means this PR goes through all callers (in some cases multiple layers up the call stack) to find a `ReadOptions` to provide the priority. There are TODOs for cases I believe it would be good to let user control the priority some day (e.g., file footer reads), and no TODO in cases I believe it doesn't matter (e.g., trace file reads). The API doc only lists the missing cases where a file read associated with a provided `ReadOptions` cannot be rate limited. For cases like file ingestion checksum calculation, there is no API to provide `ReadOptions` or `Env::IOPriority`, so I didn't count that as missing. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9424 Test Plan: - new unit tests - new benchmarks on ~50MB database with 1MB/s read rate limit and 100ms refill interval; verified with strace reads are chunked (at 0.1MB per chunk) and spaced roughly 100ms apart. - setup command: `./db_bench -benchmarks=fillrandom,compact -db=/tmp/testdb -target_file_size_base=1048576 -disable_auto_compactions=true -file_checksum=true` - benchmarks command: `strace -ttfe pread64 ./db_bench -benchmarks=verifychecksum,verifyfilechecksums -use_existing_db=true -db=/tmp/testdb -rate_limiter_bytes_per_sec=1048576 -rate_limit_bg_reads=1 -rate_limit_user_ops=true -file_checksum=true` - crash test using IO_USER priority on non-validation reads with https://github.com/facebook/rocksdb/issues/9567 reverted: `python3 tools/db_crashtest.py blackbox --max_key=1000000 --write_buffer_size=524288 --target_file_size_base=524288 --level_compaction_dynamic_level_bytes=true --duration=3600 --rate_limit_bg_reads=true --rate_limit_user_ops=true --rate_limiter_bytes_per_sec=10485760 --interval=10` Reviewed By: hx235 Differential Revision: D33747386 Pulled By: ajkr fbshipit-source-id: a2d985e97912fba8c54763798e04f006ccc56e0c |
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Peter Dillinger
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e92a0ed040 |
Optimize & clean up footer code (#9280)
Summary: Again, ahead of planned changes in https://github.com/facebook/rocksdb/issues/9058. This change improves performance (vs. pre-https://github.com/facebook/rocksdb/issues/9240 baseline) by separating a FooterBuilder from Footer, where FooterBuilder includes (inline owns) the serialized data so that it can be stack allocated. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9280 Test Plan: existing tests + performance testing below Extreme case performance testing as in https://github.com/facebook/rocksdb/issues/9240 with TEST_TMPDIR=/dev/shm/ ./db_bench -benchmarks=fillseq -memtablerep=vector -allow_concurrent_memtable_write=false -num=30000000 (Each is ops/s averaged over 50 runs, run simultaneously with competing configuration for load fairness) Pre-https://github.com/facebook/rocksdb/issues/9240 baseline ( |
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Peter Dillinger
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653c392e47 |
More refactoring ahead of footer & meta changes (#9240)
Summary: I'm working on a new format_version=6 to support context checksum (https://github.com/facebook/rocksdb/issues/9058) and this includes much of the refactoring and test updates to support that change. Test coverage data and manual inspection agree on dead code in block_based_table_reader.cc (removed). Pull Request resolved: https://github.com/facebook/rocksdb/pull/9240 Test Plan: tests enhanced to cover more cases etc. Extreme case performance testing indicates small % regression in fillseq (w/ compaction), though CPU profile etc. doesn't suggest any explanation. There is enhanced correctness checking in Footer::DecodeFrom, but this should be negligible. TEST_TMPDIR=/dev/shm/ ./db_bench -benchmarks=fillseq -memtablerep=vector -allow_concurrent_memtable_write=false -num=30000000 -checksum_type=1 --disable_wal={false,true} (Each is ops/s averaged over 50 runs, run simultaneously with competing configuration for load fairness) Before w/ wal: 454512 After w/ wal: 444820 (-2.1%) Before w/o wal: 1004560 After w/o wal: 998897 (-0.6%) Since this doesn't modify WAL code, one would expect real effects to be larger in w/o wal case. This regression will be corrected in a follow-up PR. Reviewed By: ajkr Differential Revision: D32813769 Pulled By: pdillinger fbshipit-source-id: 444a244eabf3825cd329b7d1b150cddce320862f |
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Levi Tamasi
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dc5de45af8 |
Support readahead during compaction for blob files (#9187)
Summary: The patch adds a new BlobDB configuration option `blob_compaction_readahead_size` that can be used to enable prefetching data from blob files during compaction. This is important when using storage with higher latencies like HDDs or remote filesystems. If enabled, prefetching is used for all cases when blobs are read during compaction, namely garbage collection, compaction filters (when the existing value has to be read from a blob file), and `Merge` (when the value of the base `Put` is stored in a blob file). Pull Request resolved: https://github.com/facebook/rocksdb/pull/9187 Test Plan: Ran `make check` and the stress/crash test. Reviewed By: riversand963 Differential Revision: D32565512 Pulled By: ltamasi fbshipit-source-id: 87be9cebc3aa01cc227bec6b5f64d827b8164f5d |
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Peter Dillinger
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230660be73 |
Improve / clean up meta block code & integrity (#9163)
Summary:
* Checksums are now checked on meta blocks unless specifically
suppressed or not applicable (e.g. plain table). (Was other way around.)
This means a number of cases that were not checking checksums now are,
including direct read TableProperties in Version::GetTableProperties
(fixed in meta_blocks ReadTableProperties), reading any block from
PersistentCache (fixed in BlockFetcher), read TableProperties in
SstFileDumper (ldb/sst_dump/BackupEngine) before table reader open,
maybe more.
* For that to work, I moved the global_seqno+TableProperties checksum
logic to the shared table/ code, because that is used by many utilies
such as SstFileDumper.
* Also for that to work, we have to know when we're dealing with a block
that has a checksum (trailer), so added that capability to Footer based
on magic number, and from there BlockFetcher.
* Knowledge of trailer presence has also fixed a problem where other
table formats were reading blocks including bytes for a non-existant
trailer--and awkwardly kind-of not using them, e.g. no shared code
checking checksums. (BlockFetcher compression type was populated
incorrectly.) Now we only read what is needed.
* Minimized code duplication and differing/incompatible/awkward
abstractions in meta_blocks.{cc,h} (e.g. SeekTo in metaindex block
without parsing block handle)
* Moved some meta block handling code from table_properties*.*
* Moved some code specific to block-based table from shared table/ code
to BlockBasedTable class. The checksum stuff means we can't completely
separate it, but things that don't need to be in shared table/ code
should not be.
* Use unique_ptr rather than raw ptr in more places. (Note: you can
std::move from unique_ptr to shared_ptr.)
Without enhancements to GetPropertiesOfAllTablesTest (see below),
net reduction of roughly 100 lines of code.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/9163
Test Plan:
existing tests and
* Enhanced DBTablePropertiesTest.GetPropertiesOfAllTablesTest to verify that
checksums are now checked on direct read of table properties by TableCache
(new test would fail before this change)
* Also enhanced DBTablePropertiesTest.GetPropertiesOfAllTablesTest to test
putting table properties under old meta name
* Also generally enhanced that same test to actually test what it was
supposed to be testing already, by kicking things out of table cache when
we don't want them there.
Reviewed By: ajkr, mrambacher
Differential Revision: D32514757
Pulled By: pdillinger
fbshipit-source-id: 507964b9311d186ae8d1131182290cbd97a99fa9
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Peter Dillinger
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dfedc74d82 |
Some checksum code refactoring (#9113)
Summary: To prepare for adding checksum to footer and "context aware" checksums. This also brings closely related code much closer together. Recently added `BlockBasedTableBuilder::ComputeBlockTrailer` for testing is made obsolete in the refactoring, as testing the checksums can happen at a lower level of abstraction. Also now checking for unrecognized checksum type on reading footer, rather than later on use. Also removed an obsolete function delcaration. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9113 Test Plan: existing tests worked before refactoring to remove `ComputeBlockTrailer`. And then refactored+improved tests using it. Reviewed By: mrambacher Differential Revision: D32090149 Pulled By: pdillinger fbshipit-source-id: 2879da683c1498ea85a3b70dace9b6d9f6b47b6e |
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ricky
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b59b7570cf |
More clear error message on uncompressing block (#8934)
Summary: The origin error message of uncompressing block is confusing, which may result from either build support or data corruption. Pull Request resolved: https://github.com/facebook/rocksdb/pull/8934 Reviewed By: ltamasi Differential Revision: D31112588 Pulled By: pdillinger fbshipit-source-id: 1cbf2d4fbcb0ef376cf942246d06f48cb603f852 |
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mrambacher
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8948dc8524 |
Make ImmutableOptions struct that inherits from ImmutableCFOptions and ImmutableDBOptions (#8262)
Summary: The ImmutableCFOptions contained a bunch of fields that belonged to the ImmutableDBOptions. This change cleans that up by introducing an ImmutableOptions struct. Following the pattern of Options struct, this class inherits from the DB and CFOption structs (of the Immutable form). Only one structural change (the ImmutableCFOptions::fs was changed to a shared_ptr from a raw one) is in this PR. All of the other changes involve moving the member variables from the ImmutableCFOptions into the ImmutableOptions and changing member variables or function parameters as required for compilation purposes. Follow-on PRs may do a further clean-up of the code, such as renaming variables (such as "ImmutableOptions cf_options") and potentially eliminating un-needed function parameters (there is no longer a need to pass both an ImmutableDBOptions and an ImmutableOptions to a function). Pull Request resolved: https://github.com/facebook/rocksdb/pull/8262 Reviewed By: pdillinger Differential Revision: D28226540 Pulled By: mrambacher fbshipit-source-id: 18ae71eadc879dedbe38b1eb8e6f9ff5c7147dbf |
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mrambacher
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0ca6d6297f |
Rename variables in ImmutableCFOptions to avoid conflicts with ImmutableDBOptions (#8227)
Summary: Renaming ImmutableCFOptions::info_log and statistics to logger and stats. This is stage 2 in creating an ImmutableOptions class. It is necessary because the names match those in ImmutableOptions and have different types. Pull Request resolved: https://github.com/facebook/rocksdb/pull/8227 Reviewed By: jay-zhuang Differential Revision: D28000967 Pulled By: mrambacher fbshipit-source-id: 3bf2aa04e8f1e8724d825b7deacf41080c14420b |
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mrambacher
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3dff28cf9b |
Use SystemClock* instead of std::shared_ptr<SystemClock> in lower level routines (#8033)
Summary: For performance purposes, the lower level routines were changed to use a SystemClock* instead of a std::shared_ptr<SystemClock>. The shared ptr has some performance degradation on certain hardware classes. For most of the system, there is no risk of the pointer being deleted/invalid because the shared_ptr will be stored elsewhere. For example, the ImmutableDBOptions stores the Env which has a std::shared_ptr<SystemClock> in it. The SystemClock* within the ImmutableDBOptions is essentially a "short cut" to gain access to this constant resource. There were a few classes (PeriodicWorkScheduler?) where the "short cut" property did not hold. In those cases, the shared pointer was preserved. Using db_bench readrandom perf_level=3 on my EC2 box, this change performed as well or better than 6.17: 6.17: readrandom : 28.046 micros/op 854902 ops/sec; 61.3 MB/s (355999 of 355999 found) 6.18: readrandom : 32.615 micros/op 735306 ops/sec; 52.7 MB/s (290999 of 290999 found) PR: readrandom : 27.500 micros/op 871909 ops/sec; 62.5 MB/s (367999 of 367999 found) (Note that the times for 6.18 are prior to revert of the SystemClock). Pull Request resolved: https://github.com/facebook/rocksdb/pull/8033 Reviewed By: pdillinger Differential Revision: D27014563 Pulled By: mrambacher fbshipit-source-id: ad0459eba03182e454391b5926bf5cdd45657b67 |
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mrambacher
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12f1137355 |
Add a SystemClock class to capture the time functions of an Env (#7858)
Summary: Introduces and uses a SystemClock class to RocksDB. This class contains the time-related functions of an Env and these functions can be redirected from the Env to the SystemClock. Many of the places that used an Env (Timer, PerfStepTimer, RepeatableThread, RateLimiter, WriteController) for time-related functions have been changed to use SystemClock instead. There are likely more places that can be changed, but this is a start to show what can/should be done. Over time it would be nice to migrate most (if not all) of the uses of the time functions from the Env to the SystemClock. There are several Env classes that implement these functions. Most of these have not been converted yet to SystemClock implementations; that will come in a subsequent PR. It would be good to unify many of the Mock Timer implementations, so that they behave similarly and be tested similarly (some override Sleep, some use a MockSleep, etc). Additionally, this change will allow new methods to be introduced to the SystemClock (like https://github.com/facebook/rocksdb/issues/7101 WaitFor) in a consistent manner across a smaller number of classes. Pull Request resolved: https://github.com/facebook/rocksdb/pull/7858 Reviewed By: pdillinger Differential Revision: D26006406 Pulled By: mrambacher fbshipit-source-id: ed10a8abbdab7ff2e23d69d85bd25b3e7e899e90 |
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anand76
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01298c8ff7 |
Return Status from FilePrefetchBuffer::TryReadFromCache() (#7816)
Summary: Return the Status from TryReadFromCache() in an argument to make it easier to report prefetch errors to the user. Tests: make crash_test make check Pull Request resolved: https://github.com/facebook/rocksdb/pull/7816 Reviewed By: akankshamahajan15 Differential Revision: D25717222 Pulled By: anand1976 fbshipit-source-id: c320d3c12d4146bda16df78ff6927eee584c1810 |
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anand76
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7c19d43883 |
Fix initialization order of DBOptions and kHostnameForDbHostId (#7702)
Summary: Fix initialization order of DBOptions and kHostnameForDbHostId by making the initialization of the latter static rather than dynamic. Pull Request resolved: https://github.com/facebook/rocksdb/pull/7702 Reviewed By: ajkr Differential Revision: D25111633 Pulled By: anand1976 fbshipit-source-id: 7afad834a66e40bcd8694a43b40d378695212224 |
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Yanqin Jin
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394210f280 |
Remove unused includes (#7604)
Summary: This is a PR generated **semi-automatically** by an internal tool to remove unused includes and `using` statements. Pull Request resolved: https://github.com/facebook/rocksdb/pull/7604 Test Plan: make check Reviewed By: ajkr Differential Revision: D24579392 Pulled By: riversand963 fbshipit-source-id: c4bfa6c6b08da1de186690d37eb73d8fff45aecd |
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anand76
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00751e4292 |
Add a host location property to TableProperties (#7479)
Summary: This PR adds support for writing a location identifier of the DB host to SST files as a table property. By default, the hostname is used, but can be overridden by the user. There have been some recent corruptions in files written by ```SstFileWriter``` before checksumming, so this property can be used to trace it back to the writing host and checking the host for hardware isues. Pull Request resolved: https://github.com/facebook/rocksdb/pull/7479 Test Plan: Add new unit tests Reviewed By: pdillinger Differential Revision: D24340671 Pulled By: anand1976 fbshipit-source-id: 2038949fd8d160c0633ccb4f9da77740f19fa2a2 |
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Levi Tamasi
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30fb9dd50f |
Introduce a helper method UncompressData (#7434)
Summary: The patch introduces a helper method in `util/compression.h` called `UncompressData` that dispatches calls to the correct uncompression method based on type, and changes `UncompressBlockContentsForCompressionType` and `Benchmark::Uncompress` in `db_bench` so they are implemented in terms of the new method. This eliminates some code duplication. (`Benchmark::Compress` is also updated to use the previously introduced `CompressData` helper.) In addition, the patch brings the implementation of `Snappy_Uncompress` into sync with the other uncompression methods by making the method compute the buffer size and allocate the buffer itself. Finally, the patch eliminates some potentially risky back-and-forth conversions between various unsigned and signed integer types by exposing the size of the allocated buffer as a `size_t` instead of an `int`. Pull Request resolved: https://github.com/facebook/rocksdb/pull/7434 Test Plan: `make check` `./db_bench -benchmarks=compress,uncompress --compression_type ...` Reviewed By: riversand963 Differential Revision: D23900011 Pulled By: ltamasi fbshipit-source-id: b25df63ceec4639889be94acb22eb53e530c54e0 |
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Levi Tamasi
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9d6f48ec1d |
Clean up CompressBlock/CompressBlockInternal a bit (#7249)
Summary: The patch cleans up and refactors `CompressBlock` and `CompressBlockInternal` a bit. In particular, it does the following: * It renames `CompressBlockInternal` to `CompressData` and moves it to `util/compression.h`, where other general compression-related utilities are located. This will facilitate reuse in the BlobDB write path. * The signature of the method is changed so it now takes `compression_format_version` (similarly to the compression library specific methods) instead of `format_version` (which is specific to the block based table). * `GetCompressionFormatForVersion` no longer takes `compression_type` as a parameter. This parameter was only used in a (not entirely up-to-date) assertion; also, removing it eliminates the need to ensure this precondition holds at all call sites. * Does some minor cleanup in `CompressBlock`, for instance, it is now possible to pass only one of `sampled_output_fast` and `sampled_output_slow`. Pull Request resolved: https://github.com/facebook/rocksdb/pull/7249 Test Plan: `make check` Reviewed By: riversand963 Differential Revision: D23087278 Pulled By: ltamasi fbshipit-source-id: e6316e45baed8b4e7de7c1780c90501c2a3439b3 |
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Anand Ananthabhotla
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9a5886bd8c |
Extend Get/MultiGet deadline support to table open (#6982)
Summary: Current implementation of the ```read_options.deadline``` option only checks the deadline for random file reads during point lookups. This PR extends the checks to file opens, prefetches and preloads as part of table open. The main changes are in the ```BlockBasedTable```, partitioned index and filter readers, and ```TableCache``` to take ReadOptions as an additional parameter. In ```BlockBasedTable::Open```, in order to retain existing behavior w.r.t checksum verification and block cache usage, we filter out most of the options in ```ReadOptions``` except ```deadline```. However, having the ```ReadOptions``` gives us more flexibility to honor other options like verify_checksums, fill_cache etc. in the future. Additional changes in callsites due to function signature changes in ```NewTableReader()``` and ```FilePrefetchBuffer```. Pull Request resolved: https://github.com/facebook/rocksdb/pull/6982 Test Plan: Add new unit tests in db_basic_test Reviewed By: riversand963 Differential Revision: D22219515 Pulled By: anand1976 fbshipit-source-id: 8a3b92f4a889808013838603aa3ca35229cd501b |
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Ziyue Yang
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c384c08a4f |
Add tests for compression failure in BlockBasedTableBuilder (#6709)
Summary: Currently there is no check for whether BlockBasedTableBuilder will expose compression error status if compression fails during the table building. This commit adds fake faulting compressors and a unit test to test such cases. This check finds 5 bugs, and this commit also fixes them: 1. Not handling compression failure well in BlockBasedTableBuilder::BGWorkWriteRawBlock. 2. verify_compression failing in BlockBasedTableBuilder when used with ZSTD. 3. Wrongly passing the same reference of block contents to BlockBasedTableBuilder::CompressAndVerifyBlock in parallel compression. 4. Wrongly setting block_rep->first_key_in_next_block to nullptr in BlockBasedTableBuilder::EnterUnbuffered when there are still incoming data blocks. 5. Not maintaining variables for compression ratio estimation and first_block in BlockBasedTableBuilder::EnterUnbuffered. Pull Request resolved: https://github.com/facebook/rocksdb/pull/6709 Reviewed By: ajkr Differential Revision: D21236254 fbshipit-source-id: 101f6e62b2bac2b7be72be198adf93cd32a1ff46 |
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anand76
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ab13d43e1d |
Pass a timeout to FileSystem for random reads (#6751)
Summary: Calculate ```IOOptions::timeout``` using ```ReadOptions::deadline``` and pass it to ```FileSystem::Read/FileSystem::MultiRead```. This allows us to impose a tighter bound on the time taken by Get/MultiGet on FileSystem/Envs that support IO timeouts. Even on those that don't support, check in ```RandomAccessFileReader::Read``` and ```MultiRead``` and return ```Status::TimedOut()``` if the deadline is exceeded. For now, TableReader creation, which might do file opens and reads, are not covered. It will be implemented in another PR. Tests: Update existing unit tests to verify the correct timeout value is being passed Pull Request resolved: https://github.com/facebook/rocksdb/pull/6751 Reviewed By: riversand963 Differential Revision: D21285631 Pulled By: anand1976 fbshipit-source-id: d89af843e5a91ece866e87aa29438b52a65a8567 |
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Peter Dillinger
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eecd8fba46 |
Fix assertion that can fail on sst corruption (#6780)
Summary: An assertion that a char == a CompressionType (unsigned char) originally cast from a char can fail if the original value is negative, due to numeric promotion. The assertion should pass even if the value is invalid CompressionType, because the callee UncompressBlockContentsForCompressionType checks for that and reports status appropriately. Pull Request resolved: https://github.com/facebook/rocksdb/pull/6780 Test Plan: Temporarily change kZSTD = 0x88 and see tests fail. Make this change (in addition), and tests pass. Reviewed By: siying Differential Revision: D21328498 Pulled By: pdillinger fbshipit-source-id: 61caf8d815581ce49261ecb7ab0f396e9ac4bb92 |
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Cheng Chang
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40497a875a |
Reduce memory copies when fetching and uncompressing blocks from SST files (#6689)
Summary: In https://github.com/facebook/rocksdb/pull/6455, we modified the interface of `RandomAccessFileReader::Read` to be able to get rid of memcpy in direct IO mode. This PR applies the new interface to `BlockFetcher` when reading blocks from SST files in direct IO mode. Without this PR, in direct IO mode, when fetching and uncompressing compressed blocks, `BlockFetcher` will first copy the raw compressed block into `BlockFetcher::compressed_buf_` or `BlockFetcher::stack_buf_` inside `RandomAccessFileReader::Read` depending on the block size. then during uncompressing, it will copy the uncompressed block into `BlockFetcher::heap_buf_`. In this PR, we get rid of the first memcpy and directly uncompress the block from `direct_io_buf_` to `heap_buf_`. Pull Request resolved: https://github.com/facebook/rocksdb/pull/6689 Test Plan: A new unit test `block_fetcher_test` is added. Reviewed By: anand1976 Differential Revision: D21006729 Pulled By: cheng-chang fbshipit-source-id: 2370b92c24075692423b81277415feb2aed5d980 |
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Cheng Chang
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0a0151fb99 |
Remove memcpy from RandomAccessFileReader::Read in direct IO mode (#6455)
Summary: In direct IO mode, RandomAccessFileReader::Read allocates an internal aligned buffer, and then copies the result into the scratch buffer. If the result is only temporarily used inside a function, there is no need to do the memcpy and just let the result Slice refer to the internally allocated buffer. Pull Request resolved: https://github.com/facebook/rocksdb/pull/6455 Test Plan: make check Differential Revision: D20106753 Pulled By: cheng-chang fbshipit-source-id: 44f505843837bba47a56e3fa2c4dd3bd76486b58 |
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sdong
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fdf882ded2 |
Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433)
Summary: When dynamically linking two binaries together, different builds of RocksDB from two sources might cause errors. To provide a tool for user to solve the problem, the RocksDB namespace is changed to a flag which can be overridden in build time. Pull Request resolved: https://github.com/facebook/rocksdb/pull/6433 Test Plan: Build release, all and jtest. Try to build with ROCKSDB_NAMESPACE with another flag. Differential Revision: D19977691 fbshipit-source-id: aa7f2d0972e1c31d75339ac48478f34f6cfcfb3e |
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Peter Dillinger
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18f57f5ef8 |
Add new persistent 64-bit hash (#5984)
Summary:
For upcoming new SST filter implementations, we will use a new
64-bit hash function (XXH3 preview, slightly modified). This change
updates hash.{h,cc} for that change, adds unit tests, and out-of-lines
the implementations to keep hash.h as clean/small as possible.
In developing the unit tests, I discovered that the XXH3 preview always
returns zero for the empty string. Zero is problematic for some
algorithms (including an upcoming SST filter implementation) if it
occurs more often than at the "natural" rate, so it should not be
returned from trivial values using trivial seeds. I modified our fork
of XXH3 to return a modest hash of the seed for the empty string.
With hash function details out-of-lines in hash.h, it makes sense to
enable XXH_INLINE_ALL, so that direct calls to XXH64/XXH32/XXH3p
are inlined. To fix array-bounds warnings on some inline calls, I
injected some casts to uintptr_t in xxhash.cc. (Issue reported to Yann.)
Revised: Reverted using XXH_INLINE_ALL for now. Some Facebook
checks are unhappy about #include on xxhash.cc file. I would
fix that by rename to xxhash_cc.h, but to best preserve history I want
to do that in a separate commit (PR) from the uintptr casts.
Also updated filter_bench for this change, improving the performance
predictability of dry run hashing and adding support for 64-bit hash
(for upcoming new SST filter implementations, minor dead code in the
tool for now).
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5984
Differential Revision: D18246567
Pulled By: pdillinger
fbshipit-source-id: 6162fbf6381d63c8cc611dd7ec70e1ddc883fbb8
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sdong
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b931f84e56 |
Divide file_reader_writer.h and .cc (#5803)
Summary: file_reader_writer.h and .cc contain several files and helper function, and it's hard to navigate. Separate it to multiple files and put them under file/ Pull Request resolved: https://github.com/facebook/rocksdb/pull/5803 Test Plan: Build whole project using make and cmake. Differential Revision: D17374550 fbshipit-source-id: 10efca907721e7a78ed25bbf74dc5410dea05987 |
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Mike Kolupaev
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b4d7209428 |
Add an option to put first key of each sst block in the index (#5289)
Summary: The first key is used to defer reading the data block until this file gets to the top of merging iterator's heap. For short range scans, most files never make it to the top of the heap, so this change can reduce read amplification by a lot sometimes. Consider the following workload. There are a few data streams (we'll be calling them "logs"), each stream consisting of a sequence of blobs (we'll be calling them "records"). Each record is identified by log ID and a sequence number within the log. RocksDB key is concatenation of log ID and sequence number (big endian). Reads are mostly relatively short range scans, each within a single log. Writes are mostly sequential for each log, but writes to different logs are randomly interleaved. Compactions are disabled; instead, when we accumulate a few tens of sst files, we create a new column family and start writing to it. So, a typical sst file consists of a few ranges of blocks, each range corresponding to one log ID (we use FlushBlockPolicy to cut blocks at log boundaries). A typical read would go like this. First, iterator Seek() reads one block from each sst file. Then a series of Next()s move through one sst file (since writes to each log are mostly sequential) until the subiterator reaches the end of this log in this sst file; then Next() switches to the next sst file and reads sequentially from that, and so on. Often a range scan will only return records from a small number of blocks in small number of sst files; in this case, the cost of initial Seek() reading one block from each file may be bigger than the cost of reading the actually useful blocks. Neither iterate_upper_bound nor bloom filters can prevent reading one block from each file in Seek(). But this PR can: if the index contains first key from each block, we don't have to read the block until this block actually makes it to the top of merging iterator's heap, so for short range scans we won't read any blocks from most of the sst files. This PR does the deferred block loading inside value() call. This is not ideal: there's no good way to report an IO error from inside value(). As discussed with siying offline, it would probably be better to change InternalIterator's interface to explicitly fetch deferred value and get status. I'll do it in a separate PR. Pull Request resolved: https://github.com/facebook/rocksdb/pull/5289 Differential Revision: D15256423 Pulled By: al13n321 fbshipit-source-id: 750e4c39ce88e8d41662f701cf6275d9388ba46a |
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Zhongyi Xie
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d68f9f4580 |
simplify include directive involving inttypes (#5402)
Summary: When using `PRIu64` type of printf specifier, current code base does the following: ``` #ifndef __STDC_FORMAT_MACROS #define __STDC_FORMAT_MACROS #endif #include <inttypes.h> ``` However, this can be simplified to ``` #include <cinttypes> ``` as long as flag `-std=c++11` is used. This should solve issues like https://github.com/facebook/rocksdb/issues/5159 Pull Request resolved: https://github.com/facebook/rocksdb/pull/5402 Differential Revision: D15701195 Pulled By: miasantreble fbshipit-source-id: 6dac0a05f52aadb55e9728038599d3d2e4b59d03 |
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Siying Dong
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000b9ec217 |
Move some logging related files to logging/ (#5387)
Summary: Many logging related source files are under util/. It will be more structured if they are together. Pull Request resolved: https://github.com/facebook/rocksdb/pull/5387 Differential Revision: D15579036 Pulled By: siying fbshipit-source-id: 3850134ed50b8c0bb40a0c8ae1f184fa4081303f |
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Siying Dong
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8843129ece |
Move some memory related files from util/ to memory/ (#5382)
Summary: Move arena, allocator, and memory tools under util to a separate memory/ directory. Pull Request resolved: https://github.com/facebook/rocksdb/pull/5382 Differential Revision: D15564655 Pulled By: siying fbshipit-source-id: 9cd6b5d0d3d52b39606e19221fa154596e5852a5 |
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Vijay Nadimpalli
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50e470791d |
Organizing rocksdb/table directory by format
Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/5373 Differential Revision: D15559425 Pulled By: vjnadimpalli fbshipit-source-id: 5d6d6d615582bedd96a4b879bb25d429a6de8b55 |
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Siying Dong
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89ab1381f8 |
Apply automatic formatting to some files (#5114)
Summary: Following files were run through automatic formatter: db/db_impl.cc db/db_impl.h db/db_impl_compaction_flush.cc db/db_impl_debug.cc db/db_impl_files.cc db/db_impl_readonly.h db/db_impl_write.cc db/dbformat.cc db/dbformat.h table/block.cc table/block.h table/block_based_filter_block.cc table/block_based_filter_block.h table/block_based_filter_block_test.cc table/block_based_table_builder.cc table/block_based_table_reader.cc table/block_based_table_reader.h table/block_builder.cc table/block_builder.h table/block_fetcher.cc table/block_prefix_index.cc table/block_prefix_index.h table/block_test.cc table/format.cc table/format.h I could easily run all the files, but I don't want people to feel that I'm doing it for lines of code changes :) Pull Request resolved: https://github.com/facebook/rocksdb/pull/5114 Differential Revision: D14633040 Pulled By: siying fbshipit-source-id: 3f346cb53bf21e8c10704400da548dfce1e89a52 |
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Siying Dong
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aef763b6d6 |
Make statistics's stats_level change thread-safe (#5030)
Summary: Right now, users can change statistics.stats_level while DB is running, but TSAN may report data race. We make stats_level_ to be atomic, and access them using accessors. Pull Request resolved: https://github.com/facebook/rocksdb/pull/5030 Differential Revision: D14267519 Pulled By: siying fbshipit-source-id: 37d7ebeff7a43a406230143422a16af899163f73 |