Summary:
In order to populate the IOStatus up to the higher level, replace some of the Status to IOStatus.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8820
Test Plan: make check
Reviewed By: pdillinger
Differential Revision: D30967215
Pulled By: zhichao-cao
fbshipit-source-id: ccf9d5cfbd9d3de047c464aaa85f9fa43b474903
Summary:
Potential bugs in the IO uring implementation can cause bad data to be returned in the completion queue. Add some checks in the PosixRandomAccessFile::MultiRead completion handling code to catch such errors and fail the entire MultiRead. Also log some diagnostic messages and stack trace.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8894
Reviewed By: siying, pdillinger
Differential Revision: D30826982
Pulled By: anand1976
fbshipit-source-id: af91815ac760e095d6cc0466cf8bd5c10167fd15
Summary:
ArenaWrappedDBIter::db_iter_ should never be nullptr. However, when debugging a segfault, it's hard to distinguish it is not initialized (not possible) and other corruption. Add this nullptr to help distinguish the case.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8889
Test Plan: Run existing unit tests.
Reviewed By: pdillinger
Differential Revision: D30814756
fbshipit-source-id: 4b1f36896a33dc203d4f1f424ded9554927d61ba
Summary:
After https://github.com/facebook/rocksdb/issues/8725, keys added to `WriteBatch` may be timestamp-suffixed, while `WriteBatch` has no awareness of the timestamp size. Therefore, `WriteBatch` can no longer calculate timestamp checksum separately from the rest of the key's checksum in all cases.
This PR changes the definition of key in KV checksum to include the timestamp suffix. That way we do not need to worry about where the timestamp begins within the key. I believe the only practical effect of this change is now `AssignTimestamp()` requires recomputing the whole key checksum (`UpdateK()`) rather than just the timestamp portion (`UpdateT()`).
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8914
Test Plan:
run stress command that used to fail
```
$ ./db_stress --batch_protection_bytes_per_key=8 -clear_column_family_one_in=0 -test_batches_snapshots=1
```
Reviewed By: riversand963
Differential Revision: D30925715
Pulled By: ajkr
fbshipit-source-id: c143f7ccb46c0efb390ad57ef415c250d754deff
Summary:
* Started on some proper usage text to document the options
* Added a `JOB_ID` parameter, so that we can trace jobs and relate them to other assets
* Now generates a correct TSV file of the summary
* Summary has new additional fields:
* RocksDB Version
* Date
* Job ID
* db_bench log files now also include the Job ID
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8730
Reviewed By: mrambacher
Differential Revision: D30747344
Pulled By: jay-zhuang
fbshipit-source-id: 87eb78d20959b6d95804aebf129606fa9c71f407
Summary:
These tests would frequently fail to find SST files due to race
condition in running ldb (read-only) on an open DB which might do automatic
compaction. But only sometimes would that failure translate into test
failure because the implementation of ldb file_checksum_dump would
swallow many errors. Now,
* DB closed while running ldb to avoid unnecessary race condition
* Detect and report/propagate more failures in `ldb file_checksum_dump`
* Use --hex so that random binary data is not printed to console
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8898
Test Plan: ./ldb_cmd_test --gtest_filter=*Checksum* --gtest_repeat=100
Reviewed By: zhichao-cao
Differential Revision: D30848738
Pulled By: pdillinger
fbshipit-source-id: 20290b517eeceba99bb538bb5a17088f7e878405
Summary:
The patch adjusts the definition of BlobDB's DB properties a bit by
switching to `GetBlobFileSize` from `GetTotalBlobBytes`. The
difference is that the value returned by `GetBlobFileSize` includes
the blob file header and footer as well, and thus matches the on-disk
size of blob files. In addition, the patch removes the `Version` number
from the `blob_stats` property, and updates/extends the unit tests a little.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8902
Test Plan: `make check`
Reviewed By: riversand963
Differential Revision: D30859542
Pulled By: ltamasi
fbshipit-source-id: e3426d2d567bd1bd8c8636abdafaafa0743c854c
Summary:
This allows the wrapper classes to own the wrapped object and eliminates confusion as to ownership. Previously, many classes implemented their own ownership solutions. Fixes https://github.com/facebook/rocksdb/issues/8606
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8618
Reviewed By: pdillinger
Differential Revision: D30136064
Pulled By: mrambacher
fbshipit-source-id: d0bf471df8818dbb1770a86335fe98f761cca193
Summary:
In the past, we unnecessarily requires all keys in the same write batch
to be from column families whose timestamps' formats are the same for
simplicity. Specifically, we cannot use the same write batch to write to
two column families, one of which enables timestamp while the other
disables it.
The limitation is due to the member `timestamp_size_` that used to exist
in each `WriteBatch` object. We pass a timestamp_size to the constructor
of `WriteBatch`. Therefore, users can simply use the old
`WriteBatch::Put()`, `WriteBatch::Delete()`, etc APIs for write, while
the internal implementation of `WriteBatch` will take care of memory
allocation for timestamps.
The above is not necessary.
One the one hand, users can set up a memory buffer to store user key and
then contiguously append the timestamp to the user key. Then the user
can pass this buffer to the `WriteBatch::Put(Slice&)` API.
On the other hand, users can set up a SliceParts object which is an
array of Slices and let the last Slice to point to the memory buffer
storing timestamp. Then the user can pass the SliceParts object to the
`WriteBatch::Put(SliceParts&)` API.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8725
Test Plan: make check
Reviewed By: ltamasi
Differential Revision: D30654499
Pulled By: riversand963
fbshipit-source-id: 9d848c77ad3c9dd629aa5fc4e2bc16fb0687b4a2
Summary:
It's always annoying to find a header does not include its own
dependencies and only works when included after other includes. This
change adds `make check-headers` which validates that each header can
be included at the top of a file. Some headers are excluded e.g. because
of platform or external dependencies.
rocksdb_namespace.h had to be re-worked slightly to enable checking for
failure to include it. (ROCKSDB_NAMESPACE is a valid namespace name.)
Fixes mostly involve adding and cleaning up #includes, but for
FileTraceWriter, a constructor was out-of-lined to make a forward
declaration sufficient.
This check is not currently run with `make check` but is added to
CircleCI build-linux-unity since that one is already relatively fast.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8893
Test Plan: existing tests and resolving issues detected by new check
Reviewed By: mrambacher
Differential Revision: D30823300
Pulled By: pdillinger
fbshipit-source-id: 9fff223944994c83c105e2e6496d24845dc8e572
Summary:
Make the Statistics object into a Customizable object. Statistics can now be stored and created to/from the Options file.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8637
Reviewed By: zhichao-cao
Differential Revision: D30530550
Pulled By: mrambacher
fbshipit-source-id: 5fc7d01d8431f37b2c205bbbd8342c9f697023bd
Summary:
Context/Summary:
As users requested, a public API RateLimiter::GetTotalPendingRequests() is added to expose the total number of pending requests for bytes in the rate limiter, which is the size of the request queue of that priority (or of all priorities, if IO_TOTAL is interested) at the time when this API is called.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8890
Test Plan:
- Passing added new unit tests
- Passing existing unit tests
Reviewed By: ajkr
Differential Revision: D30815500
Pulled By: hx235
fbshipit-source-id: 2dfa990f651c1c47378b6215c751ad76a5824300
Summary:
ManagedObjects are shared pointer objects where RocksDB wants to share a single object between multiple configurations. For example, the Cache may be shared between multiple column families/tables or the Statistics may be shared between multiple databases.
ManagedObjects are stored in the ObjectRegistry by Type (e.g. Cache) and ID. For a given type/ID name, a single object is stored.
APIs were added to get/set/create these objects.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8658
Reviewed By: pdillinger
Differential Revision: D30806273
Pulled By: mrambacher
fbshipit-source-id: 832ac4423b210c4c4b4a456b35897334775d3160
Summary:
As a first step of supporting user-defined timestamps with ingestion, the
patch adds timestamp support to `SstFileWriter`; namely, it adds new
versions of the `Put` and `Delete` APIs that take timestamps. (`Merge`
and `DeleteRange` are currently not supported with user-defined timestamps
in general but once those features are implemented, we can handle them
in `SstFileWriter` in a similar fashion.) The new APIs validate the size of
the timestamp provided by the client. Similarly, calls to the pre-existing
timestamp-less APIs are now disallowed when user-defined timestamps are
in use according to the comparator.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8899
Test Plan: `make check`
Reviewed By: riversand963
Differential Revision: D30850699
Pulled By: ltamasi
fbshipit-source-id: 779154373618f19b8f0797976bb7286783c57b67
Summary:
Context/Summary: this PR is to clarify what the parameter new_memory_used is in CacheReservationManager::UpdateCacheReservation
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8895
Test Plan:
- Passing existing test
- Make format
Reviewed By: jay-zhuang
Differential Revision: D30844814
Pulled By: hx235
fbshipit-source-id: 3177f7abf5668ea9e73818ceaa355566f03acabc
Summary:
Support custom Env in these tests. Some custom Envs do not support reopening a file for write, either normal mode or Random RW mode. Added some additional checks in external_sst_file_basic_test to accommodate those Envs.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8888
Reviewed By: riversand963
Differential Revision: D30824481
Pulled By: anand1976
fbshipit-source-id: c3ac7a628e6df29e94f42e370e679934a4f77eac
Summary:
Context:
While all the non-trivial write operations in BackupEngine go through the RateLimiter, reads currently do not. In general, this is not a huge issue because (especially since some I/O efficiency fixes) reads in BackupEngine are mostly limited by corresponding writes, for both backup and restore. But in principle we should charge the RateLimiter for reads as well.
- Charged read operations in `BackupEngineImpl::CopyOrCreateFile`, `BackupEngineImpl::ReadFileAndComputeChecksum`, `BackupEngineImpl::BackupMeta::LoadFromFile` and `BackupEngineImpl::GetFileDbIdentities`
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8722
Test Plan:
- Passed existing tests
- Passed added unit tests
Reviewed By: pdillinger
Differential Revision: D30610464
Pulled By: hx235
fbshipit-source-id: 9b08c9387159a5385c8d390d6666377a0d0117e5
Summary:
A "LATEST_BACKUP" file was left in the backup directory by
"BackupEngineTest.NoDeleteWithReadOnly" test, affecting future test
runs. In particular, it caused "BackupEngineTest.IOStats" to fail since
it relies on backup directory containing only data written by its
`BackupEngine`.
The fix is to promote "LATEST_BACKUP" to an explicitly managed file so
it is deleted in `BackupEngineTest` constructor if it exists.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8887
Test Plan:
below command used to fail. Now it passes:
```
$ TEST_TMPDIR=/dev/shm ./backupable_db_test --gtest_filter='BackupEngineTest.NoDeleteWithReadOnly:BackupEngineTest.IOStats'
```
Reviewed By: pdillinger
Differential Revision: D30812336
Pulled By: ajkr
fbshipit-source-id: 32dfbe1368ebdab872e610764bfea5daf9a2af09
Summary:
Context:
Some data blocks are temporarily buffered in memory in BlockBasedTableBuilder for building compression dictionary used in data block compression. Currently this memory usage is not counted toward our global memory usage utilizing block cache capacity. To improve that, this PR charges that memory usage into the block cache to achieve better memory tracking and limiting.
- Reserve memory in block cache for buffered data blocks that are used to build a compression dictionary
- Release all the memory associated with buffering the data blocks mentioned above in EnterUnbuffered(), which is called when (a) buffer limit is exceeded after buffering OR (b) the block cache becomes full after reservation OR (c) BlockBasedTableBuilder calls Finish()
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8428
Test Plan:
- Passing existing unit tests
- Passing new unit tests
Reviewed By: ajkr
Differential Revision: D30755305
Pulled By: hx235
fbshipit-source-id: 6e66665020b775154a94c4c5e0f2adaeaff13981
Summary:
RocksDB exposes certain internal statistics via the DB property interface.
However, there are currently no properties related to BlobDB.
For starters, we would like to add the following BlobDB properties:
`rocksdb.num-blob-files`: number of blob files in the current Version (kind of like `num-files-at-level` but note this is not per level, since blob files are not part of the LSM tree).
`rocksdb.blob-stats`: this could return the total number and size of all blob files, and potentially also the total amount of garbage (in bytes) in the blob files in the current Version.
`rocksdb.total-blob-file-size`: the total size of all blob files (as a blob counterpart for `total-sst-file-size`) of all Versions.
`rocksdb.live-blob-file-size`: the total size of all blob files in the current Version.
`rocksdb.estimate-live-data-size`: this is actually an existing property that we can extend so it considers blob files as well. When it comes to blobs, we actually have an exact value for live bytes. Namely, live bytes can be computed simply as total bytes minus garbage bytes, summed over the entire set of blob files in the Version.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8734
Test Plan:
```
➜ rocksdb git:(new_feature_blobDB_properties) ./db_blob_basic_test
[==========] Running 16 tests from 2 test cases.
[----------] Global test environment set-up.
[----------] 10 tests from DBBlobBasicTest
[ RUN ] DBBlobBasicTest.GetBlob
[ OK ] DBBlobBasicTest.GetBlob (12 ms)
[ RUN ] DBBlobBasicTest.MultiGetBlobs
[ OK ] DBBlobBasicTest.MultiGetBlobs (11 ms)
[ RUN ] DBBlobBasicTest.GetBlob_CorruptIndex
[ OK ] DBBlobBasicTest.GetBlob_CorruptIndex (10 ms)
[ RUN ] DBBlobBasicTest.GetBlob_InlinedTTLIndex
[ OK ] DBBlobBasicTest.GetBlob_InlinedTTLIndex (12 ms)
[ RUN ] DBBlobBasicTest.GetBlob_IndexWithInvalidFileNumber
[ OK ] DBBlobBasicTest.GetBlob_IndexWithInvalidFileNumber (9 ms)
[ RUN ] DBBlobBasicTest.GenerateIOTracing
[ OK ] DBBlobBasicTest.GenerateIOTracing (11 ms)
[ RUN ] DBBlobBasicTest.BestEffortsRecovery_MissingNewestBlobFile
[ OK ] DBBlobBasicTest.BestEffortsRecovery_MissingNewestBlobFile (13 ms)
[ RUN ] DBBlobBasicTest.GetMergeBlobWithPut
[ OK ] DBBlobBasicTest.GetMergeBlobWithPut (11 ms)
[ RUN ] DBBlobBasicTest.MultiGetMergeBlobWithPut
[ OK ] DBBlobBasicTest.MultiGetMergeBlobWithPut (14 ms)
[ RUN ] DBBlobBasicTest.BlobDBProperties
[ OK ] DBBlobBasicTest.BlobDBProperties (21 ms)
[----------] 10 tests from DBBlobBasicTest (124 ms total)
[----------] 6 tests from DBBlobBasicTest/DBBlobBasicIOErrorTest
[ RUN ] DBBlobBasicTest/DBBlobBasicIOErrorTest.GetBlob_IOError/0
[ OK ] DBBlobBasicTest/DBBlobBasicIOErrorTest.GetBlob_IOError/0 (12 ms)
[ RUN ] DBBlobBasicTest/DBBlobBasicIOErrorTest.GetBlob_IOError/1
[ OK ] DBBlobBasicTest/DBBlobBasicIOErrorTest.GetBlob_IOError/1 (10 ms)
[ RUN ] DBBlobBasicTest/DBBlobBasicIOErrorTest.MultiGetBlobs_IOError/0
[ OK ] DBBlobBasicTest/DBBlobBasicIOErrorTest.MultiGetBlobs_IOError/0 (10 ms)
[ RUN ] DBBlobBasicTest/DBBlobBasicIOErrorTest.MultiGetBlobs_IOError/1
[ OK ] DBBlobBasicTest/DBBlobBasicIOErrorTest.MultiGetBlobs_IOError/1 (10 ms)
[ RUN ] DBBlobBasicTest/DBBlobBasicIOErrorTest.CompactionFilterReadBlob_IOError/0
[ OK ] DBBlobBasicTest/DBBlobBasicIOErrorTest.CompactionFilterReadBlob_IOError/0 (1011 ms)
[ RUN ] DBBlobBasicTest/DBBlobBasicIOErrorTest.CompactionFilterReadBlob_IOError/1
[ OK ] DBBlobBasicTest/DBBlobBasicIOErrorTest.CompactionFilterReadBlob_IOError/1 (1013 ms)
[----------] 6 tests from DBBlobBasicTest/DBBlobBasicIOErrorTest (2066 ms total)
[----------] Global test environment tear-down
[==========] 16 tests from 2 test cases ran. (2190 ms total)
[ PASSED ] 16 tests.
```
Reviewed By: ltamasi
Differential Revision: D30690849
Pulled By: Zhiyi-Zhang
fbshipit-source-id: a7567319487ad76bd1a2e24bf143afdbbd9e4346
Summary:
This PR does the following:
-> Makes the MemTableRepFactory into a Customizable class and creatable/configurable via CreateFromString
-> Makes the existing implementations compatible with configurations
-> Moves the "SpecialRepFactory" test class into testutil, accessible via the ObjectRegistry or a NewSpecial API
New tests were added to validate the functionality and all existing tests pass. db_bench and memtablerep_bench were hand-tested to verify the functionality in those tools.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8419
Reviewed By: zhichao-cao
Differential Revision: D29558961
Pulled By: mrambacher
fbshipit-source-id: 81b7229636e4e649a0c914e73ac7b0f8454c931c
Summary:
Failure to create the lock file (e.g. out of space) could
prevent future LockFile attempts in the same process on the same file
from succeeding.
Also added DEBUG code to fail assertion if PosixFileLock is destroyed
without using UnlockFile (which is a risk because FileLock is in the
public API with virtual destructor).
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8747
Test Plan: test added
Reviewed By: ajkr
Differential Revision: D30732543
Pulled By: pdillinger
fbshipit-source-id: 4c30a959566d91f778d6fad3fbbd5f3941b097c1
Summary:
* Don't hardcode namespace rocksdb (use ROCKSDB_NAMESPACE)
* Don't #include <rocksdb/...> (use double quotes)
* Support putting NOCOMMIT (any case) in source code that should not be
committed/pushed in current state.
These will be run with `make check` and in GitHub actions
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8821
Test Plan: existing tests, manually try out new checks
Reviewed By: zhichao-cao
Differential Revision: D30791726
Pulled By: pdillinger
fbshipit-source-id: 399c883f312be24d9e55c58951d4013e18429d92
Summary:
Gets `Statistics` from the options associated with the `DB` undergoing backup, and populates new ticker stats with the thread-local `IOContext` read/write counters for the threads doing backup work.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8819
Reviewed By: pdillinger
Differential Revision: D30779238
Pulled By: ajkr
fbshipit-source-id: 75ccafc355f90906df5cf80367f7245b985772d8
Summary:
asan_symbolize.py is not compatible with python3. Also make it
consistent with public CI, which doesn't use asan_symbolize.py
And update coverage_test.sh to use python3.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8737
Test Plan: CI
Reviewed By: pdillinger
Differential Revision: D30702430
Pulled By: jay-zhuang
fbshipit-source-id: ef09947b1232294d31b09a855c2f0ce149097dd9
Summary:
- Clarified some comments on compatibility for adding new ticker stats
- Added read I/O stats for `VerifyChecksum()` and `VerifyFileChecksums()` APIs
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8741
Test Plan: new unit test
Reviewed By: zhichao-cao
Differential Revision: D30708578
Pulled By: ajkr
fbshipit-source-id: d06b961f7e199ae92c266b683e39870aa8f63449
Summary:
* Consolidate use of std::regex for testing to testharness.cc, to
minimize Facebook linters constantly flagging uses in non-production
code.
* Improve syntax and error messages for asserting some string matches a
regex in tests.
* Add a public Regex wrapper class to encapsulate existing usage in
ObjectRegistry.
* Remove unnecessary include <regex>
* Put warnings that use of Regex in production code could cause bad
performance or stack overflow.
Intended follow-up work:
* Replace std::regex with another underlying implementation like RE2
* Improve ObjectRegistry interface in terms of possibly confusing literal
string matching vs. regex and in terms of reporting invalid regex.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8740
Test Plan:
tests updated, basic unit test for public Regex, and some manual
testing of temporary changes to see example error messages:
utilities/backupable/backupable_db_test.cc:917: Failure
000010_1162373755_138626.blob (child.name)
does not match regex
[0-9]+_[0-9]+_[0-9]+[.]blobHAHAHA (pattern)
db/db_basic_test.cc:74: Failure
R3SHSBA8C4U0CIMV2ZB0 (sid3)
does not match regex [0-9A-Z]{20}HAHAHA
Reviewed By: mrambacher
Differential Revision: D30706246
Pulled By: pdillinger
fbshipit-source-id: ba845e8f563ccad39bdb58f44f04e9da8f78c3fd
Summary:
Old typedef syntax is confusing
Most but not all changes with
perl -pi -e 's/typedef (.*) ([a-zA-Z0-9_]+);/using $2 = $1;/g' list_of_files
make format
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8751
Test Plan: existing
Reviewed By: zhichao-cao
Differential Revision: D30745277
Pulled By: pdillinger
fbshipit-source-id: 6f65f0631c3563382d43347896020413cc2366d9
Summary:
Regression test is broken and not running:
1. failed test is not reporting, fix it by add `set -e`
2. internal regression test is not run inside github, removing that
3. fix a few minor issues to pass the test
4. delete unused binary size build, and regression test is reporting binary size now.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8753
Test Plan: CI: https://www.internalfb.com/intern/sandcastle/job/13510799359573861
Reviewed By: ltamasi
Differential Revision: D30754380
Pulled By: jay-zhuang
fbshipit-source-id: 0cfa008327fff31bc61118a3fe642924090d28e1
Summary:
Update branch name from master to main in docs/*
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8743
Reviewed By: ltamasi
Differential Revision: D30712263
Pulled By: akankshamahajan15
fbshipit-source-id: a1a5e20d95210e792705030f98dd2b38ca542eb5
Summary:
While we're at it, also update the links to Travis (.org to .com).
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8727
Reviewed By: jay-zhuang
Differential Revision: D30675223
Pulled By: ltamasi
fbshipit-source-id: ce4b04a72e56ad35b6bddb982cca41fa8ceacf84
Summary:
* FullKey and ParseFullKey appear to serve no purpose in the public API
(or anything else) so removed. Only use in one test updated.
* NumberToString serves no purpose vs. ToString so removed, numerous
calls updated
* Remove unnecessary forward declarations in metadata.h by re-arranging
class definitions.
* Remove some unneeded semicolons
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8736
Test Plan: existing tests
Reviewed By: mrambacher
Differential Revision: D30700039
Pulled By: pdillinger
fbshipit-source-id: 1e436a576f511a6ed8b4d97af7cc8216bc729af2
Summary:
If RateLimiter burst bytes changes during concurrent Restore
operations
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8732
Test Plan: updated unit test fails with TSAN before change, passes after
Reviewed By: ajkr
Differential Revision: D30683879
Pulled By: pdillinger
fbshipit-source-id: d0ddb3587ade91ee2a4d926b475acf7781b03086
Zhichao Cao