Summary:
Added support for SingleDelete for user-defined timestamps. Users can now Get and Iterate over keys deleted with SingleDelete. It also includes changes in CompactionIterator which preserves the same user key with different timestamps, unless the timestamp is below a certain threshold full_history_ts_low.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8921
Test Plan: Added new unit tests
Reviewed By: riversand963
Differential Revision: D31098191
Pulled By: akankshamahajan15
fbshipit-source-id: 78a59ef4b4884ae324fcd10f56e62a27d5ee2f49
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
Summary:
Made SliceTransform into a Customizable class.
Would be nice to write a test that stored and used a custom transform in an SST table.
There are a set of tests (DBBlockFliterTest.PrefixExtractor*, SamePrefixTest.InDomainTest, PrefixTest.PrefixAndWholeKeyTest that run the same with or without a SliceTransform/PrefixFilter. Is this expected?
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8641
Reviewed By: zhichao-cao
Differential Revision: D31142793
Pulled By: mrambacher
fbshipit-source-id: bb08672fccbfdc263dcae21f25a62307e1facda1
Summary:
`RandomAccessFileReader::MultiRead()` tries to merge requests in direct IO, assuming input IO requests are
sorted by offsets.
Add a test in direct IO mode.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8953
Test Plan: make check
Reviewed By: ltamasi
Differential Revision: D31183546
Pulled By: riversand963
fbshipit-source-id: 5d043ec68e2daa47a3149066150afd41ee3d73e6
Summary:
For now, disable it since the below command indicates it can cause a
failure. Running that command with `-experimental_mempurge_threshold=0`
has been running successfully for several minutes, whereas before it
failed in seconds.
```
$ while rm -rf /dev/shm/single_stress && ./db_stress --clear_column_family_one_in=0 --column_families=1 --db=/dev/shm/single_stress --experimental_mempurge_threshold=5.493146827397074 --flush_one_in=10000 --reopen=0 --write_buffer_size=262144 --value_size_mult=33 --max_write_buffer_number=3 -ops_per_thread=10000; do : ; done
```
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8958
Reviewed By: ltamasi
Differential Revision: D31187059
Pulled By: ajkr
fbshipit-source-id: 04d5bfb4fcc4f5b66233e691427dfd940c67037f
Summary:
The cyclic dependency was:
- `StressTest::OperateDb()` locks the mutex for key 'k'
- `StressTest::OperateDb()` calls a function like `PauseBackgroundWork()`, which waits for pending compaction to complete.
- The pending compaction reaches key `k` and `DbStressCompactionFilter::FilterV2()` calls `Lock()` on that key's mutex, which hangs forever.
The cycle can be broken by using a new function, `port::Mutex::TryLock()`, which returns immediately upon failure to acquire a lock. In that case `DbStressCompactionFilter::FilterV2()` can just decide to keep the key.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8956
Reviewed By: riversand963
Differential Revision: D31183718
Pulled By: ajkr
fbshipit-source-id: 329e4a31ce43085af174cf367ef560b5a04399c5
Summary:
For internal build enviroment only. Developer could run the
microbenchmark without `ROCKSDB_NO_FBCODE=1`.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8954
Test Plan: `$ make microbench` on dev server
Reviewed By: ajkr
Differential Revision: D31163717
Pulled By: jay-zhuang
fbshipit-source-id: 1ff59f660ca05afd0fd5c7c7dcdfd831ac365462
Summary:
Right now FaultInjectionTestFS::InjectThreadSpecificReadError() might try to corrupt return bytes, but these bytes might be from mmapped files, which would cause segfault. Instead FaultInjectionTestFS::InjectThreadSpecificReadError() should never corrupt data unless it is in caller's buffer.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8952
Test Plan: See db_stress still runs and make sure in a test run failurs are still injected in non-mmap cases.
Reviewed By: ajkr, ltamasi
Differential Revision: D31147318
fbshipit-source-id: 9484a64ff2aaa36685557203f449286e694e65f9
Summary:
Context:
After more discussion, a fix in https://github.com/facebook/rocksdb/issues/8938 might turn out to be too restrictive for the case where `GetTotalPendingRequests` might be invoked on RateLimiter classes that does not support the recently added API `RateLimiter::GetTotalPendingRequests` (https://github.com/facebook/rocksdb/issues/8890) due to the `assert(false)` in https://github.com/facebook/rocksdb/issues/8938. Furthermore, sentinel value like `-1` proposed in https://github.com/facebook/rocksdb/issues/8938 is easy to be ignored and unchecked. Therefore we decided to adopt `Status::NotSupported()`, which is also a convention of adding new API to public header in RocksDB.
- Changed return value type of `RateLimiter::GetTotalPendingRequests` in related declaration/definition
- Passed in pointer argument to hold the output instead of returning it as before
- Adapted to the changes above in calling `RateLimiter::GetTotalPendingRequests` in test
- Minor improvement to `TEST_F(RateLimiterTest, GetTotalPendingRequests)`: added failure message for assertion and replaced repetitive statements with a loop
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8950
Reviewed By: ajkr, pdillinger
Differential Revision: D31128450
Pulled By: hx235
fbshipit-source-id: 282ac9c4f3dacaa0aec6d0a993161f77ad47a040
Summary:
There is a corner case when using WriteUnprepared transactions when
`WriteUnpreparedTxn::Get` returns `Status::TryAgain` instead of
propagating the result of `GetFromBatchAndDB`. The patch adds
`PermitUncheckedError` to make the `ASSERT_STATUS_CHECKED` build pass in
this case as well.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8947
Test Plan: `make check`
Reviewed By: riversand963
Differential Revision: D31125422
Pulled By: ltamasi
fbshipit-source-id: 42de51dcfa9384e032244c2b4d3f40e9a4111194
Summary:
Context/Summary:
https://github.com/facebook/rocksdb/pull/8890 added a public API `RateLimiter::GetTotalPendingRequest()` but mistakenly marked it as pure virtual, forcing RateLimiter's derived classes to implement this function and breaking backward compatibility.
This PR makes `RateLimiter::GetTotalPendingRequest()` as non-pure virtual method by providing a trivial implementation in rate_limiter.h
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8938
Test Plan: Passing existing tests
Reviewed By: pdillinger
Differential Revision: D31100661
Pulled By: hx235
fbshipit-source-id: 06eff1005156a6e5a881e393b2c5b2ad706897d8
Summary:
Several improvements to MultiRead:
1. Fix a bug in stress test which causes false positive when both MultiRead() return and individual read request have failure injected.
2. Add two more types of fault that should be handled: empty read results and checksum mismatch
3. Add a message indicating which type of fault is injected
4. Increase the failure rate
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8937
Reviewed By: anand1976
Differential Revision: D31085930
fbshipit-source-id: 3a04994a3cadebf9a64d25e1fe12b14b7a272fba
Summary:
Right now, if underlying read returns fewer bytes than asked for, RandomAccessFileReader::MultiRead() still returns those in the buffer to upper layer. This can be a surprise to upper layer.
This is unlikely to cause incorrect data. To cause incorrect data, checksum checking in upper layer should pass with short reads, whose chance is low.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8941
Test Plan: Run stress tests for a while
Reviewed By: anand1976
Differential Revision: D31085780
fbshipit-source-id: 999adf2d6c2712f1323d14bb68b678df59969973
Summary:
In FileChecksumTestHelper::VerifyEachFileChecksum(), we query the file list, and then for each file in the list verify the checksum. However, compaction can delete those files in the mean time and cause failures. To prevent it from happening, disable file deletion during the validation.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8942
Test Plan: Run exsiting test and see it doesn't fail.
Reviewed By: pdillinger
Differential Revision: D31086488
fbshipit-source-id: 554608f36d2dd3bf0a20dfc4039c68bd8533d7f8
Summary:
Updates a few remaining functions that should have been updated
from Status -> IOStatus, and adds to HISTORY for the overall change
including https://github.com/facebook/rocksdb/issues/8820.
This change is for inclusion in version 6.25.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8940
Test Plan: CI
Reviewed By: zhichao-cao
Differential Revision: D31085029
Pulled By: pdillinger
fbshipit-source-id: 91557c6a39ef1d90357d4f4dcd79af0645d87c7b
Summary:
Made SystemClock into a Customizable class, complete with CreateFromString.
Cleaned up some of the existing SystemClock implementations that were redundant (NoSleep was the same as the internal one for MockEnv).
Changed MockEnv construction to allow Clock to be passed to the Memory/MockFileSystem.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8636
Reviewed By: zhichao-cao
Differential Revision: D30483360
Pulled By: mrambacher
fbshipit-source-id: cd0e3a876c39f8c98fe13374c06e8edbd5b9f2a1
Summary:
In case of IO uring bugs, we need to provide a way for users to turn it off.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8931
Test Plan: Manually run db_bench with/without the option and verify the behavior
Reviewed By: pdillinger
Differential Revision: D31040252
Pulled By: anand1976
fbshipit-source-id: 56f2537d6ac8488c9e126296d8190ad9e0158f70
Summary:
Add support for fallback to local compaction, the user can
return `CompactionServiceJobStatus::kUseLocal` to instruct RocksDB to
run the compaction locally instead of waiting for the remote compaction
result.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8709
Test Plan: unittest
Reviewed By: ajkr
Differential Revision: D30560163
Pulled By: jay-zhuang
fbshipit-source-id: 65d8905a4a1bc185a68daa120997f21d3198dbe1
Summary:
As title. The reason is that after loading customized options, the env is not set back to the correct one. Fix it.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8929
Test Plan: Manually validate in an environment where the command failed.
Reviewed By: riversand963
Differential Revision: D31026931
fbshipit-source-id: c25dc788bf80ed5bf4b24922c442781943bcd65b
Summary:
Because even 32-bit systems can have large files
This is a "change" that I don't want intermingled with an upcoming refactoring.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8926
Test Plan: CI
Reviewed By: zhichao-cao
Differential Revision: D31020974
Pulled By: pdillinger
fbshipit-source-id: ca9eb4510697df6f1f55e37b37730b88b1809a92
Summary:
- Fixed a bug in `RateLimiterTest.GeneratePriorityIterationOrder` that the callbacks in this test were not called starting from `i = 1`. Fix by increasing `rate_bytes_per_sec` and requested bytes.
- The bug is due to the previous `rate_bytes_per_sec` was set too small, resulting in `refill_bytes_per_period` less than `kMinRefillBytesPerPeriod`. Hence the actual `refill_bytes_per_period` was equal to `kMinRefillBytesPerPeriod` due to the logic [here](https://github.com/facebook/rocksdb/blob/main/util/rate_limiter.cc#L302-L303) and it ended up being greater than the previously set requested bytes. Therefore starting from `i = 1`, `RefillBytesAndGrantRequests()` and `GeneratePriorityIterationOrder` won't be called and the test callbacks was not triggered to execute the assertion.
- Added internal flag to assert callbacks are called in `RateLimiterTest.GeneratePriorityIterationOrder` to prevent any future changes defeat the purpose of the test [as suggested](https://github.com/facebook/rocksdb/pull/8890#discussion_r704915134)
- Increased `rate_bytes_per_sec` and bytes of each request in `RateLimiterTest.GetTotalBytesThrough`, `RateLimiterTest.GetTotalRequests`, `RateLimiterTest.GetTotalPendingRequests` to trigger the "long path" of execution (i.e, the one trigger RefillBytesAndGrantRequests()) to increase test coverage
- This increased the running time of the three tests, see test plan for time difference running locally
- Cleared up sync point effects after each test by calling `SyncPoint::GetInstance()->DisableProcessing();` and `SyncPoint::GetInstance()->ClearAllCallBacks();` in `~RateLimiterTest()` [as suggested](https://github.com/facebook/rocksdb/pull/8595/files#r697534279)
- It's fine to call these two methods even when `EnableProcessing()` or `SetCallBack()` is not called in the test or is already cleaned up. In those cases, calling these two functions in destructor is effectively no-op.
- This will allow cleaning up sync point effects of previous test even when the previous test failed in assertion.
- Added missing `SyncPoint::GetInstance()->DisableProcessing();` and `SyncPoint::GetInstance()->ClearCallBacks(..);` in existing tests for completeness
- Called `SyncPoint::GetInstance()->DisableProcessing();` and `SyncPoint::GetInstance()->ClearCallBacks(..);` in loop in `RateLimiterTest.GeneratePriorityIterationOrder` for completeness
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8904
Test Plan:
- Passing existing tests
- To verify the 1st change, run `RateLimiterTest.GeneratePriorityIterationOrder` with assertions of callbacks are indeed called under original `rate_bytes_per_sec` and request byte and under updated `rate_bytes_per_sec` and request byte. The former will fail the assertion while the latter succeeds.
- Here is the increased test time due to the 3rd change mentioned above in the summary. The relevant 3 tests mentioned in total increase the test time by 6s (~6000/33848 = 17.7% of the original total test time), which IMO is acceptable for better test coverage through running the "long path".
- current (run on branch rate_limiter_ut_improve locally)
[ RUN ] RateLimiterTest.GetTotalBytesThrough
[ OK ] RateLimiterTest.GetTotalBytesThrough (3000 ms)
[ RUN ] RateLimiterTest.GetTotalRequests
[ OK ] RateLimiterTest.GetTotalRequests (3001 ms)
[ RUN ] RateLimiterTest.GetTotalPendingRequests
[ OK ] RateLimiterTest.GetTotalPendingRequests (0 ms)
...
[----------] 10 tests from RateLimiterTest (43349 ms total)
[----------] Global test environment tear-down
[==========] 10 tests from 1 test case ran. (43349 ms total)
[ PASSED ] 10 tests.
- previous (run on branch main locally)
[ RUN ] RateLimiterTest.GetTotalBytesThrough
[ OK ] RateLimiterTest.GetTotalBytesThrough (0 ms)
[ RUN ] RateLimiterTest.GetTotalRequests
[ OK ] RateLimiterTest.GetTotalRequests (0 ms)
[ RUN ] RateLimiterTest.GetTotalPendingRequests
[ OK ] RateLimiterTest.GetTotalPendingRequests (0 ms)
...
[----------] 10 tests from RateLimiterTest (33848 ms total)
[----------] Global test environment tear-down
[==========] 10 tests from 1 test case ran. (33848 ms total)
[ PASSED ] 10 tests.
Reviewed By: ajkr
Differential Revision: D30872544
Pulled By: hx235
fbshipit-source-id: ff894f5c1a4bef70e8e407d53b00be45f776b3e4
Summary:
This keeps the implementations/API backward compatible. Implementations of Statistics will need to override this method (and be registered with the ObjectRegistry) in order to be created via CreateFromString.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8918
Reviewed By: pdillinger
Differential Revision: D30958916
Pulled By: mrambacher
fbshipit-source-id: 75b99a84e9e11fda2a9e8eff9ee1ef69a17517b2
Summary:
1. Extend FlushJobInfo and CompactionJobInfo with information about the blob files generated by flush/compaction jobs. This PR add two structures BlobFileInfo and BlobFileGarbageInfo that contains the required information of blob files.
2. Notify the creation and deletion of blob files through OnBlobFileCreationStarted, OnBlobFileCreated, and OnBlobFileDeleted.
3. Test OnFile*Finish operations notifications with Blob Files.
4. Log the blob file creation/deletion events through EventLogger in Log file.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8675
Test Plan: Add new unit tests in listener_test
Reviewed By: ltamasi
Differential Revision: D30412613
Pulled By: akankshamahajan15
fbshipit-source-id: ca51b63c6e8c8d0485a38c503572bc5a82bd5d07
Summary:
Right now, the failure injection test for MultiGet() is not sufficient. Improve it with TestFSRandomAccessFile::MultiRead() injecting failures.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8925
Test Plan: Run crash test locally for a while.
Reviewed By: anand1976
Differential Revision: D31000529
fbshipit-source-id: 439c7e02cf7440ac5af82deb609e202abdca3e1f
Summary:
Add compaction priority information in RemoteCompaction, which
can be used to schedule high priority job first.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8707
Test Plan: unittest
Reviewed By: ajkr
Differential Revision: D30548401
Pulled By: jay-zhuang
fbshipit-source-id: b30446511fb31b4583c49edd8565d496cf013a34
Summary:
One contrun name is incorrect, which mixed error reporting with another one. Fix it.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8924
Reviewed By: ltamasi
Differential Revision: D30999477
fbshipit-source-id: 46a04b2e4b48f755181aa9a47c353d91f1128469
Summary:
Test did not consider that slower deletion rate only kicks in
after a file is deleted
Fixes https://github.com/facebook/rocksdb/issues/7546
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8917
Test Plan:
no longer reproduces using
buck test mode/dev //internal_repo_rocksdb/repo:db_sst_test -- --exact 'internal_repo_rocksdb/repo:db_sst_test - DBWALTestWithParam/DBWALTestWithParam.WALTrashCleanupOnOpen/0' --jobs 40 --stress-runs 600 --record-results
Reviewed By: siying
Differential Revision: D30949127
Pulled By: pdillinger
fbshipit-source-id: 5d0607f8f548071b07410fe8f532b4618cd225e5
Summary:
kFlushOnly currently means "always" except in the case of
remote compaction. This makes it flushes only.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/8750
Test Plan: test updated
Reviewed By: akankshamahajan15
Differential Revision: D30968034
Pulled By: pdillinger
fbshipit-source-id: 5dbd24dde18852a0e937a540995fba9bfbe89037
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
