Commit Graph

11710 Commits

Author SHA1 Message Date
Andrew Kryczka b44cbbf709 Fix GetMergeOperands() returning MergeInProgress (#11136)
Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/11136

Test Plan: the provided unit test used to fail due to `GetMergeOperands()` returning `Status::MergeInProgress()`; it passes now because the `GetMergeOperands()` call returns `Status::OK()`

Reviewed By: pdillinger

Differential Revision: D42759198

Pulled By: ajkr

fbshipit-source-id: 878f9f40ccc1d7e2fe7b1352814bae3a49c19939
2023-01-26 15:11:19 -08:00
dependabot[bot] dcf93b7b3e Bump commonmarker from 0.23.6 to 0.23.7 in /docs (#11128)
Summary:
Bumps [commonmarker](https://github.com/gjtorikian/commonmarker) from 0.23.6 to 0.23.7.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/gjtorikian/commonmarker/releases">commonmarker's releases</a>.</em></p>
<blockquote>
<h2>v0.23.7</h2>
<h2>What's Changed</h2>
<ul>
<li>C API stable test by <a href="https://github.com/gjtorikian"><code>@​gjtorikian</code></a> in <a href="https://github-redirect.dependabot.com/gjtorikian/commonmarker/pull/201">gjtorikian/commonmarker#201</a></li>
<li>Update to 29.0.gfm.7 by <a href="https://github.com/anticomputer"><code>@​anticomputer</code></a> in <a href="https://github-redirect.dependabot.com/gjtorikian/commonmarker/pull/224">gjtorikian/commonmarker#224</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a href="https://github.com/gjtorikian/commonmarker/compare/v0.23.6...v0.23.7">https://github.com/gjtorikian/commonmarker/compare/v0.23.6...v0.23.7</a></p>
<h2>v0.23.7.pre1</h2>
<h2>What's Changed</h2>
<ul>
<li>C API stable test by <a href="https://github.com/gjtorikian"><code>@​gjtorikian</code></a> in <a href="https://github-redirect.dependabot.com/gjtorikian/commonmarker/pull/201">gjtorikian/commonmarker#201</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a href="https://github.com/gjtorikian/commonmarker/compare/v0.23.6...v0.23.7.pre1">https://github.com/gjtorikian/commonmarker/compare/v0.23.6...v0.23.7.pre1</a></p>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/gjtorikian/commonmarker/blob/main/CHANGELOG.md">commonmarker's changelog</a>.</em></p>
<blockquote>
<h1>Changelog</h1>
<h2><a href="https://github.com/gjtorikian/commonmarker/tree/v1.0.0.pre6">v1.0.0.pre6</a> (2023-01-09)</h2>
<p><a href="https://github.com/gjtorikian/commonmarker/compare/v1.0.0.pre5...v1.0.0.pre6">Full Changelog</a></p>
<p><strong>Closed issues:</strong></p>
<ul>
<li>Cargo.lock prevents Ruby 3.2.0 from installing commonmarker v1.0.0.pre4 <a href="https://github-redirect.dependabot.com/gjtorikian/commonmarker/issues/211">https://github.com/facebook/rocksdb/issues/211</a></li>
</ul>
<p><strong>Merged pull requests:</strong></p>
<ul>
<li>always use rb_sys (don't use Ruby's emerging cargo tooling where available) <a href="https://github-redirect.dependabot.com/gjtorikian/commonmarker/pull/213">https://github.com/facebook/rocksdb/issues/213</a> (<a href="https://github.com/kivikakk">kivikakk</a>)</li>
</ul>
<h2><a href="https://github.com/gjtorikian/commonmarker/tree/v1.0.0.pre5">v1.0.0.pre5</a> (2023-01-08)</h2>
<p><a href="https://github.com/gjtorikian/commonmarker/compare/v1.0.0.pre4...v1.0.0.pre5">Full Changelog</a></p>
<p><strong>Merged pull requests:</strong></p>
<ul>
<li>Provide 3.2 build support <a href="https://github-redirect.dependabot.com/gjtorikian/commonmarker/pull/212">https://github.com/facebook/rocksdb/issues/212</a> (<a href="https://github.com/gjtorikian">gjtorikian</a>)</li>
</ul>
<h2><a href="https://github.com/gjtorikian/commonmarker/tree/v1.0.0.pre4">v1.0.0.pre4</a> (2022-12-28)</h2>
<p><a href="https://github.com/gjtorikian/commonmarker/compare/v1.0.0.pre3...v1.0.0.pre4">Full Changelog</a></p>
<p><strong>Closed issues:</strong></p>
<ul>
<li>Will the cmark-gfm branch continue to be maintained for awhile? <a href="https://github-redirect.dependabot.com/gjtorikian/commonmarker/issues/207">https://github.com/facebook/rocksdb/issues/207</a></li>
</ul>
<p><strong>Merged pull requests:</strong></p>
<ul>
<li>Implement native syntax highlighting <a href="https://github-redirect.dependabot.com/gjtorikian/commonmarker/pull/209">https://github.com/facebook/rocksdb/issues/209</a> (<a href="https://github.com/gjtorikian">gjtorikian</a>)</li>
<li>Bump magnus from 0.4.3 to 0.4.4 <a href="https://github-redirect.dependabot.com/gjtorikian/commonmarker/pull/208">https://github.com/facebook/rocksdb/issues/208</a> (<a href="https://github.com/apps/dependabot">dependabot[bot]</a>)</li>
<li>Bump magnus from 0.4.2 to 0.4.3 <a href="https://github-redirect.dependabot.com/gjtorikian/commonmarker/pull/206">https://github.com/facebook/rocksdb/issues/206</a> (<a href="https://github.com/apps/dependabot">dependabot[bot]</a>)</li>
<li>Bump comrak from 0.14.0 to 0.15.0 <a href="https://github-redirect.dependabot.com/gjtorikian/commonmarker/pull/205">https://github.com/facebook/rocksdb/issues/205</a> (<a href="https://github.com/apps/dependabot">dependabot[bot]</a>)</li>
<li>Bump magnus from 0.4.1 to 0.4.2 <a href="https://github-redirect.dependabot.com/gjtorikian/commonmarker/pull/204">https://github.com/facebook/rocksdb/issues/204</a> (<a href="https://github.com/apps/dependabot">dependabot[bot]</a>)</li>
</ul>
<h2><a href="https://github.com/gjtorikian/commonmarker/tree/v1.0.0.pre3">v1.0.0.pre3</a> (2022-11-30)</h2>
<p><a href="https://github.com/gjtorikian/commonmarker/compare/v1.0.0.pre.2...v1.0.0.pre3">Full Changelog</a></p>
<p><strong>Closed issues:</strong></p>
<ul>
<li>Code block incorrectly parsed in commonmarker 1.0.0.pre <a href="https://github-redirect.dependabot.com/gjtorikian/commonmarker/issues/202">https://github.com/facebook/rocksdb/issues/202</a></li>
</ul>
<p><strong>Merged pull requests:</strong></p>
<ul>
<li>Windows build <a href="https://github-redirect.dependabot.com/gjtorikian/commonmarker/pull/197">https://github.com/facebook/rocksdb/issues/197</a> (<a href="https://github.com/gjtorikian">gjtorikian</a>)</li>
</ul>

</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="734fd86c97"><code>734fd86</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/gjtorikian/commonmarker/issues/224">https://github.com/facebook/rocksdb/issues/224</a> from gjtorikian/update-to-29.0.gfm.7</li>
<li><a href="2e724ec52a"><code>2e724ec</code></a> Turned off Rubocop.</li>
<li><a href="9c923b0bfd"><code>9c923b0</code></a> 💎 release 0.23.7</li>
<li><a href="30419c25e8"><code>30419c2</code></a> Added call to cmark_init_standard_node_flags()</li>
<li><a href="9007c3798f"><code>9007c37</code></a> Update cmark-upstream to <a href="https://github.com/github/cmark-gfm/commit/57d5e093e">https://github.com/github/cmark-gfm/commit/57d5e093e</a>...</li>
<li><a href="1cfec13373"><code>1cfec13</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/gjtorikian/commonmarker/issues/201">https://github.com/facebook/rocksdb/issues/201</a> from gjtorikian/c-api-stable-test</li>
<li><a href="bbf631b413"><code>bbf631b</code></a> lint</li>
<li><a href="5b807a115d"><code>5b807a1</code></a> ease up</li>
<li><a href="9a24e6d2fe"><code>9a24e6d</code></a> Test fake version</li>
<li><a href="d8a43bc73a"><code>d8a43bc</code></a> Allow for manual dispatch</li>
<li>Additional commits viewable in <a href="https://github.com/gjtorikian/commonmarker/compare/v0.23.6...v0.23.7">compare view</a></li>
</ul>
</details>
<br />

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Pull Request resolved: https://github.com/facebook/rocksdb/pull/11128

Reviewed By: ajkr

Differential Revision: D42752086

Pulled By: cbi42

fbshipit-source-id: 6992b6f1096400a6b10b79fe36bf955fec841b71
2023-01-26 12:07:52 -08:00
Levi Tamasi a6cfdd4eda Fix the HISTORY.md entry related to the removed statistics (#11140)
Summary:
Some histograms were incorrectly categorized as tickers.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11140

Reviewed By: anand1976

Differential Revision: D42780030

Pulled By: ltamasi

fbshipit-source-id: 5aca8ec5baad8f73676aaa9d6cdbbd2a619c8a89
2023-01-26 10:38:45 -08:00
akankshamahajan 986c5b9d4e Migrate TestEnv in listener_test.cc to FileSystemWrapper (#11125)
Summary:
Migrate derived classes from EnvWrapper to FileSystemWrapper so we can eventually deprecate the storage methods in Env.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11125

Test Plan: CircleCI jobs

Reviewed By: anand1976

Differential Revision: D42732241

Pulled By: akankshamahajan15

fbshipit-source-id: c89a70a79fcfb13e158bf8919b1a87a9de133222
2023-01-25 22:42:22 -08:00
sdong e808858ae0 Remove Stats related to compressed block cache (#11135)
Summary:
Since compressed block cache is removed, those stats are not needed. They are removed in different PR in case there is a problem with it. The stats are removed in the same way in https://github.com/facebook/rocksdb/pull/11131/ . HISTORY.md was already updated by mistake, and it would be correct after merging this PR.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11135

Test Plan: Watch CI

Reviewed By: ltamasi

Differential Revision: D42757616

fbshipit-source-id: bd7cb782585c8535ce5784295225c376f3011f35
2023-01-25 15:37:50 -08:00
Levi Tamasi 6da2e20df3 Remove more obsolete statistics (#11131)
Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/11131

Test Plan: `make check`

Reviewed By: pdillinger

Differential Revision: D42753997

Pulled By: ltamasi

fbshipit-source-id: ce8b84c1e55374257e93ed74fd255c9b759723ce
2023-01-25 15:14:13 -08:00
Heiko Becker 88edfbfb5e Fix build with gcc 13 by including <cstdint> (#11118)
Summary:
Like other versions before, gcc 13 moved some includes around and as a result <cstdint> is no longer transitively included [1]. Explicitly include it for uint{32,64}_t.

[1] https://gcc.gnu.org/gcc-13/porting_to.html#header-dep-changes

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11118

Reviewed By: cbi42

Differential Revision: D42711356

Pulled By: ajkr

fbshipit-source-id: 5ea257b85b7017f40fd8fdbce965336da95c55b2
2023-01-25 14:30:32 -08:00
Andrew Kryczka 6a5071ceb5 Support PutEntity in trace analyzer (#11127)
Summary:
Add the most basic support such that trace_analyzer commands no longer fail with
```
Cannot process the write batch in the trace
Cannot process the TraceRecord
PutEntityCF not implemented
Cannot process the trace
```

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11127

Reviewed By: cbi42

Differential Revision: D42732319

Pulled By: ajkr

fbshipit-source-id: 162d8a31318672a46539b1b042ec25f69b25c4ed
2023-01-25 14:27:02 -08:00
Peter Dillinger 546e213c4f Fix DelayWrite() calls for two_write_queues (#11130)
Summary:
PR https://github.com/facebook/rocksdb/issues/11020 fixed a case where it was easy to deadlock the DB with LockWAL() but introduced a bug showing up as a rare assertion failure in the stress test. Specifically, `assert(w->state == STATE_INIT)` in `WriteThread::LinkOne()` called from `BeginWriteStall()`, `DelayWrite()`, `WriteImplWALOnly()`. I haven't been about to generate a unit test that reproduces this failure but I believe the root cause is that DelayWrite() was never meant to be re-entrant, only called from the DB's write_thread_ leader. https://github.com/facebook/rocksdb/issues/11020 introduced a call to DelayWrite() from the nonmem_write_thread_ group leader.

This fix is to make DelayWrite() apply to the specific write queue that it is being called from (inject a dummy write stall entry to the head of the appropriate write queue). WriteController is re-entrant, based on polling and state changes signalled with bg_cv_, so can manage stalling two queues. The only anticipated complication (called out by Andrew in previous PR) is that we don't want timed write delays being injected in parallel for the two queues, because that dimishes the intended throttling effect. Thus, we only allow timed delays for the primary write queue.

HISTORY not updated because this is intended for the same release where the bug was introduced.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11130

Test Plan:
Although I was not able to reproduce the assertion failure, I was able to reproduce a distinct flaw with what I believe is the same root cause: a kind of deadlock if both write queues need to wake up from stopped writes. Only one will be waiting on bg_cv_ (the other waiting in `LinkOne()` for the write queue to open up), so a single SignalAll() will only unblock one of the queues, with the other re-instating the stop until another signal on bg_cv_. A simple unit test is added for this case.

Will also run crash_test_with_multiops_wc_txn for a while looking for issues.

Reviewed By: ajkr

Differential Revision: D42749330

Pulled By: pdillinger

fbshipit-source-id: 4317dd899a93d57c26fd5af7143038f82d4d4d1b
2023-01-25 14:18:27 -08:00
Peter Dillinger 9afa0f05ad Remove deprecated Env::LoadEnv() (#11121)
Summary:
Can use Env::CreateFromString() instead

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11121

Test Plan: unit tests updated

Reviewed By: cbi42

Differential Revision: D42723813

Pulled By: pdillinger

fbshipit-source-id: 5d4b5b10225dfdaf662f5f8049ee965a05d3edc9
2023-01-25 12:08:49 -08:00
Levi Tamasi 99e559533d Remove some deprecated/obsolete statistics from the API (#11123)
Summary:
These tickers/histograms have been obsolete (and not populated) for a long time.
The patch removes them from the API completely. Note that this means that the
numeric values of the remaining tickers change in the C++ code as they get shifted up.
This should be OK: the values of some existing tickers have changed many times
over the years as items have been added in the middle. (In contrast, the convention
in the Java bindings is to keep the ids, which are not guaranteed to be the same
as the ids on the C++ side, the same across releases.)

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11123

Test Plan: `make check`

Reviewed By: akankshamahajan15

Differential Revision: D42727793

Pulled By: ltamasi

fbshipit-source-id: e058a155a20b05b45f53e67ee380aece1b43b6c5
2023-01-24 20:56:15 -08:00
anand76 bcbab59c55 Migrate ErrorEnv from EnvWrapper to FileSystemWrapper (#11124)
Summary:
Migrate ErrorEnv from EnvWrapper to FileSystemWrapper so we can eventually deprecate the storage methods in Env.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11124

Reviewed By: akankshamahajan15

Differential Revision: D42727791

Pulled By: anand1976

fbshipit-source-id: e8362ad624dc28e55c99fc35eda12866755f62c6
2023-01-24 17:14:35 -08:00
sdong 2800aa069a Remove compressed block cache (#11117)
Summary:
Compressed block cache is replaced by compressed secondary cache. Remove the feature.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11117

Test Plan: See CI passes

Reviewed By: pdillinger

Differential Revision: D42700164

fbshipit-source-id: 6cbb24e460da29311150865f60ecb98637f9f67d
2023-01-24 17:09:19 -08:00
Peter Dillinger 4a9185340d A better contract for best_efforts_recovery (#11085)
Summary:
Capture more of the original intent at a high level, without getting bogged down in low-level details.

The old text made some weak promises about handling of LOCK files. There should be no specific concern for LOCK files, because we already rely on LockFile() to create the file if it's not present already. And the lock file is generally size 0, so don't have to worry about truncation. Added a unit test.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11085

Test Plan: existing tests, and a new one.

Reviewed By: siying

Differential Revision: D42713233

Pulled By: pdillinger

fbshipit-source-id: 2fce7c974d35fac065037c9c4c7326a59c9fe340
2023-01-24 12:55:03 -08:00
Changyu Bi e0ea0dc6bd Improve documentation for `allow_ingest_behind` (#11119)
Summary:
update documentation to mention that only universal compaction is supported.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11119

Reviewed By: ajkr

Differential Revision: D42715986

Pulled By: cbi42

fbshipit-source-id: 91b145d3318334cb92857c5c0ffc0efed6fa4363
2023-01-24 12:12:19 -08:00
Hui Xiao 86fa2592be Fix data race on `ColumnFamilyData::flush_reason` by letting FlushRequest/Job owns flush_reason instead of CFD (#11111)
Summary:
**Context:**
Concurrent flushes on the same CF can set on `ColumnFamilyData::flush_reason` before each other flush finishes. An symptom is one CF has different flush_reason with others though all of them are in an atomic flush  `db_stress: db/db_impl/db_impl_compaction_flush.cc:423: rocksdb::Status rocksdb::DBImpl::AtomicFlushMemTablesToOutputFiles(const rocksdb::autovector<rocksdb::DBImpl::BGFlushArg>&, bool*, rocksdb::JobContext*, rocksdb::LogBuffer*, rocksdb::Env::Priority): Assertion cfd->GetFlushReason() == cfds[0]->GetFlushReason() failed. `

**Summary:**
Suggested by ltamasi, we now refactor and let FlushRequest/Job to own flush_reason as there is no good way to define `ColumnFamilyData::flush_reason` in face of concurrent flushes on the same CF (which wasn't the case a long time ago when `ColumnFamilyData::flush_reason ` first introduced`)

**Tets:**
- new unit test
- make check
- aggressive crash test rehearsal

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11111

Reviewed By: ajkr

Differential Revision: D42644600

Pulled By: hx235

fbshipit-source-id: 8589c8184869d3415e5b780c887f877818a5ebaf
2023-01-24 09:54:04 -08:00
Hui Xiao 7e7548477c Update HISTORY.md/version.h/format compatiblity test for 7.10 release (#11114)
Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/11114

Reviewed By: ajkr

Differential Revision: D42685234

Pulled By: hx235

fbshipit-source-id: 79908a66ab9052a2552f080049065462ebf2f94c
2023-01-23 13:26:11 -08:00
Andrew Kryczka b7fbcefda8 Add API to limit blast radius of merge operator failure (#11092)
Summary:
Prior to this PR, `FullMergeV2()` can only return `false` to indicate failure, which causes any operation invoking it to fail. During a compaction, such a failure causes the compaction to fail and causes the DB to irreversibly enter read-only mode. Some users asked for a way to allow the merge operator to fail without such widespread damage.

To limit the blast radius of merge operator failures, this PR introduces the `MergeOperationOutput::op_failure_scope` API. When unpopulated (`kDefault`) or set to `kTryMerge`, the merge operator failure handling is the same as before. When set to `kMustMerge`, merge operator failure still causes failure to operations that must merge (`Get()`, iterator, `MultiGet()`, etc.). However, under `kMustMerge`, flushes/compactions can survive merge operator failures by outputting the unmerged input operands.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11092

Reviewed By: siying

Differential Revision: D42525673

Pulled By: ajkr

fbshipit-source-id: 951dc3bf190f86347dccf3381be967565cda52ee
2023-01-20 14:40:30 -08:00
akankshamahajan bde65052c4 Enhance async scan prefetch unit tests (#11087)
Summary:
Add more coverage in unit tests for async scan. The added unit test fails without PR https://github.com/facebook/rocksdb/pull/10939.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11087

Test Plan: CircleCI jobs status for new unit tests.

Reviewed By: anand1976

Differential Revision: D42487931

Pulled By: akankshamahajan15

fbshipit-source-id: d59ed7666599bd0d2733ac5d76bd70984b54c5a9
2023-01-20 10:17:57 -08:00
codeoos f4a5446cab Fix error maybe-uninitialized #11100 (#11101)
Summary:
In this issue [11100](https://github.com/facebook/rocksdb/issues/11100)
I try to upgrade dependencies of [BaikalDB](https://github.com/baidu/BaikalDB) and tool chain to gcc-12.I found that when I build rocksdb v6.26.0(maybe I can use newer version),I found that in file trace_replay/trace_replay.cc,the compiler tell me "error mybe-uninitialized".I dound that it can be fixed very easy,so I make this pull request.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11101

Reviewed By: ajkr

Differential Revision: D42583031

Pulled By: cbi42

fbshipit-source-id: 7f399f09441a30fe88b83cec5e2fd9885bad5c06
2023-01-19 13:59:48 -08:00
leipeng a5bcbcd8be remove unused InternalIteratorBase::is_mutable_ (#11104)
Summary:
`InternalIteratorBase::is_mutable_` is not used any more, remove it.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11104

Reviewed By: ajkr

Differential Revision: D42582747

Pulled By: cbi42

fbshipit-source-id: d30bf75151fc8414df0ae112a6ec4943b5b7330b
2023-01-19 13:28:58 -08:00
Peter Dillinger fd911f9655 Upgrade xxhash.h to latest dev (#11098)
Summary:
Upgrading xxhash.h to latest dev version as of 1/17/2023, which is d7197ddea81364a539051f116ca77926100fc77f This should improve performance on some ARM machines.

I allowed some of our RocksDB-specific changes to be made obsolete where it seemed appropriate, for example
* xxhash.h has its own fallthrough marker (which I hope works for us)
* As in https://github.com/Cyan4973/xxHash/pull/549

Merging and resolving conflicts one way or the other was all that went into this diff. Except I had to mix the two sides around `defined(__loongarch64)`

How I did the upgrade (for future reference), so that I could use usual merge conflict resolution:
```
# New branch to help with merging
git checkout -b xxh_merge_base
# Check out RocksDB revision before last xxhash.h upgrade
git reset --hard 22161b7547652af82a5dc67458de9ca8946ac83d^
# Create a commit with the raw base version from xxHash repo (from xxHash repo)
git show 2c611a76f914828bed675f0f342d6c4199ffee1e:xxhash.h > ../rocksdb/util/xxhash.h
# In RocksDB repo
git commit -a
# Merge in the last xxhash.h upgrade
git merge 22161b7547
# Resolve conflict using committed version
git show 22161b7547652af82a5dc67458de9ca8946ac83d:util/xxhash.h > util/xxhash.h
git commit -a
# Catch up to upstream
git merge upstream/main

# Create a different branch for applying raw upgrade
git checkout -b xxh_upgrade_2023
# Find the RocksDB commit we made for the raw base version from xxHash
git log main..HEAD
# Rewind to it
git reset --hard 2428b727a9
# Copy in latest raw version (from xxHash repo)
cat xxhash.h > ../rocksdb/util/xxhash.h
# Merge in RocksDB changes, use typical tools for conflict resolution
git merge xxh_merge_base
```

Branch https://github.com/facebook/rocksdb/tree/xxhash_merge_base can be used as a base for future xxhash merges.

Fixes https://github.com/facebook/rocksdb/issues/11073

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11098

Test Plan:
existing tests (e.g. Bloom filter schema stability tests)

Also seems to include a small performance boost on my Intel dev machine, using `./db_bench --benchmarks=xxh3[-X50] 2>&1 | egrep -o 'operations;.*' | sort`

Fastest out of 50 runs, before: 15477.3 MB/s
Fastest out of 50 runs, after: 15850.7 MB/s, and 11 more runs faster than the "before" number

Slowest out of 50 runs, before: 12267.5 MB/s
Slowest out of 50 runs, after: 13897.1 MB/s

More repetitions show the distinction is repeatable

Reviewed By: hx235

Differential Revision: D42560010

Pulled By: pdillinger

fbshipit-source-id: c43ee52f1c5fe0ba3d6d6e4eebb22ded5f5492ea
2023-01-19 12:07:50 -08:00
Changyu Bi e9d6a0d7ce Fix asan failure caused by range tombstone start key use-after-free (#11106)
Summary:
the `last_tombstone_start_user_key` variable in `BuildTable()` and in `CompactionOutputs::AddRangeDels()` may point to a start key that is freed if user-defined timestamp is enabled. This was causing ASAN failure and this PR fixes this issue.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11106

Test Plan: Added UT for repro.

Reviewed By: ajkr

Differential Revision: D42590862

Pulled By: cbi42

fbshipit-source-id: c493265ececdf89636d801d55ae929806c4d4b2c
2023-01-18 16:38:07 -08:00
akankshamahajan bd4b8d6487 Fix crash in block_cache_trace_analyzer if reference key is null in case of MultiGet (#11042)
Summary:
Same as title
Error:
```
block_cache_trace_analyzer: ./db/dbformat.h:421: uint64_t rocksdb::GetInternalKeySeqno(const rocksdb::Slice&): Assertion `n >= kNumInternalBytes' failed.
Aborted (core dumped)
```

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11042

Test Plan:
- Added new unit test which fails without the fix.
                  - Also ran manually on traces to confirm.

Reviewed By: anand1976

Differential Revision: D42481587

Pulled By: akankshamahajan15

fbshipit-source-id: 7c33eb03a4a4d8ffbabcfbe0efa1e4d11bde3ba2
2023-01-18 13:24:37 -08:00
Changyu Bi 4d0f9a995c Consider TTL compaction file cutting earlier to prevent small output file (#11075)
Summary:
in `CompactionOutputs::ShouldStopBefore()`, TTL-related states, `cur_files_to_cut_for_ttl_` and `next_files_to_cut_for_ttl_`, are not updated if the function returns early. This can cause unnecessary compaction output file cuttings and hence produce smaller output files, which may hurt write amp. See the example in the unit test for how this "unnecessary file cutting" can happen. This PR fixes this issue by moving the code for updating TTL states earlier in `CompactionOutputs::ShouldStopBefore()` so that the states are updated for each key.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11075

Test Plan: - Added new unit test.

Reviewed By: hx235

Differential Revision: D42398739

Pulled By: cbi42

fbshipit-source-id: 09fab66679c1a734abcfc31bcea33dd9aeb9dbc7
2023-01-17 16:42:41 -08:00
Changyu Bi 6a82b68788 Avoid counting extra range tombstone compensated size in `AddRangeDels()` (#11091)
Summary:
in `CompactionOutputs::AddRangeDels()`, range tombstones with the same start and end key but different sequence numbers all contribute to compensated range tombstone size. This PR removes this redundancy. This PR also includes a fix from https://github.com/facebook/rocksdb/issues/11067 where a range tombstone that is not within a file's range was being added to the file. This fixes an assertion failure for `icmp.Compare(start, end) <= 0` in VersionSet::ApproximateSize() when calculating compensated range tombstone size. Assertions and a comment/essay was added to reason that no such range tombstone will be added after this fix.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11091

Test Plan:
- Added unit tests
- Stress test with small key range: `python3 tools/db_crashtest.py blackbox --simple --max_key=100 --interval=600 --write_buffer_size=262144 --target_file_size_base=256 --max_bytes_for_level_base=262144 --block_size=128 --value_size_mult=33 --subcompactions=10`

Reviewed By: ajkr

Differential Revision: D42521588

Pulled By: cbi42

fbshipit-source-id: 5bda3fe38997995314e1f7592319af12b69bc4f8
2023-01-17 12:47:44 -08:00
Changyu Bi f515d9d203 Revert #10802 Consider range tombstone in compaction output file cutting (#11089)
Summary:
This reverts commit f02c708aa3 since it introduced several bugs (see https://github.com/facebook/rocksdb/issues/11078 and https://github.com/facebook/rocksdb/issues/11067 for attempts to fix them) and that I do not have a high confidence to fix all of them and ensure no further ones before the next release branch cut. There are also come existing issue found during bug fixing. We will work on it and try to merge it to the release after.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11089

Test Plan: existing CI.

Reviewed By: ajkr

Differential Revision: D42505972

Pulled By: cbi42

fbshipit-source-id: 2f66dcde6b85dc94977b317c2ce513872cfbc153
2023-01-13 12:28:21 -08:00
leipeng 3941c34950 db_bench: let -benchmark=compact respect -subcompactions (#11077)
Summary:
When running `-benchmarks=compact`, `-subcompactions` does not take effect.

`-subcompactions` option comment says it is for L0-L1 compactions, it is natural to extend it to CompactionRangeOptions.max_subcompactions.

This PR set CompactionRangeOptions.max_subcompactions = FLAGS_subcompactions

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11077

Reviewed By: akankshamahajan15

Differential Revision: D42506251

Pulled By: ajkr

fbshipit-source-id: f77c9a99d32ff7af59f3c452c9e16aaeb0360304
2023-01-13 11:47:26 -08:00
Wenlong Zhang 1cfe3528a2 support loongarch64 for rocksdb (#10036)
Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/10036

Reviewed By: hx235

Differential Revision: D42424074

Pulled By: ajkr

fbshipit-source-id: 004adb75005a26bd01c5d568d1ec6ac442cd59dd
2023-01-13 08:42:44 -08:00
anand76 a510880346 Add a unit test for async prefetch fix in #11049 (#11084)
Summary:
Add a unit test in prefetch_test for https://github.com/facebook/rocksdb/issues/11049

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11084

Test Plan: Verify the test fails without https://github.com/facebook/rocksdb/issues/11049 and passes with it

Reviewed By: akankshamahajan15

Differential Revision: D42485828

Pulled By: anand1976

fbshipit-source-id: ae512f2d121745a1f5212645a9b58868976c1f83
2023-01-12 18:09:07 -08:00
Peter Dillinger 9f7801c5f1 Major Cache refactoring, CPU efficiency improvement (#10975)
Summary:
This is several refactorings bundled into one to avoid having to incrementally re-modify uses of Cache several times. Overall, there are breaking changes to Cache class, and it becomes more of low-level interface for implementing caches, especially block cache. New internal APIs make using Cache cleaner than before, and more insulated from block cache evolution. Hopefully, this is the last really big block cache refactoring, because of rather effectively decoupling the implementations from the uses. This change also removes the EXPERIMENTAL designation on the SecondaryCache support in Cache. It seems reasonably mature at this point but still subject to change/evolution (as I warn in the API docs for Cache).

The high-level motivation for this refactoring is to minimize code duplication / compounding complexity in adding SecondaryCache support to HyperClockCache (in a later PR). Other benefits listed below.

* static_cast lines of code +29 -35 (net removed 6)
* reinterpret_cast lines of code +6 -32 (net removed 26)

## cache.h and secondary_cache.h
* Always use CacheItemHelper with entries instead of just a Deleter. There are several motivations / justifications:
  * Simpler for implementations to deal with just one Insert and one Lookup.
  * Simpler and more efficient implementation because we don't have to track which entries are using helpers and which are using deleters
  * Gets rid of hack to classify cache entries by their deleter. Instead, the CacheItemHelper includes a CacheEntryRole. This simplifies a lot of code (cache_entry_roles.h almost eliminated). Fixes https://github.com/facebook/rocksdb/issues/9428.
  * Makes it trivial to adjust SecondaryCache behavior based on kind of block (e.g. don't re-compress filter blocks).
  * It is arguably less convenient for many direct users of Cache, but direct users of Cache are now rare with introduction of typed_cache.h (below).
  * I considered and rejected an alternative approach in which we reduce customizability by assuming each secondary cache compatible value starts with a Slice referencing the uncompressed block contents (already true or mostly true), but we apparently intend to stack secondary caches. Saving an entry from a compressed secondary to a lower tier requires custom handling offered by SaveToCallback, etc.
* Make CreateCallback part of the helper and introduce CreateContext to work with it (alternative to https://github.com/facebook/rocksdb/issues/10562). This cleans up the interface while still allowing context to be provided for loading/parsing values into primary cache. This model works for async lookup in BlockBasedTable reader (reader owns a CreateContext) under the assumption that it always waits on secondary cache operations to finish. (Otherwise, the CreateContext could be destroyed while async operation depending on it continues.) This likely contributes most to the observed performance improvement because it saves an std::function backed by a heap allocation.
* Use char* for serialized data, e.g. in SaveToCallback, where void* was confusingly used. (We use `char*` for serialized byte data all over RocksDB, with many advantages over `void*`. `memcpy` etc. are legacy APIs that should not be mimicked.)
* Add a type alias Cache::ObjectPtr = void*, so that we can better indicate the intent of the void* when it is to be the object associated with a Cache entry. Related: started (but did not complete) a refactoring to move away from "value" of a cache entry toward "object" or "obj". (It is confusing to call Cache a key-value store (like DB) when it is really storing arbitrary in-memory objects, not byte strings.)
* Remove unnecessary key param from DeleterFn. This is good for efficiency in HyperClockCache, which does not directly store the cache key in memory. (Alternative to https://github.com/facebook/rocksdb/issues/10774)
* Add allocator to Cache DeleterFn. This is a kind of future-proofing change in case we get more serious about using the Cache allocator for memory tracked by the Cache. Right now, only the uncompressed block contents are allocated using the allocator, and a pointer to that allocator is saved as part of the cached object so that the deleter can use it. (See CacheAllocationPtr.) If in the future we are able to "flatten out" our Cache objects some more, it would be good not to have to track the allocator as part of each object.
* Removes legacy `ApplyToAllCacheEntries` and changes `ApplyToAllEntries` signature for Deleter->CacheItemHelper change.

## typed_cache.h
Adds various "typed" interfaces to the Cache as internal APIs, so that most uses of Cache can use simple type safe code without casting and without explicit deleters, etc. Almost all of the non-test, non-glue code uses of Cache have been migrated. (Follow-up work: CompressedSecondaryCache deserves deeper attention to migrate.) This change expands RocksDB's internal usage of metaprogramming and SFINAE (https://en.cppreference.com/w/cpp/language/sfinae).

The existing usages of Cache are divided up at a high level into these new interfaces. See updated existing uses of Cache for examples of how these are used.
* PlaceholderCacheInterface - Used for making cache reservations, with entries that have a charge but no value.
* BasicTypedCacheInterface<TValue> - Used for primary cache storage of objects of type TValue, which can be cleaned up with std::default_delete<TValue>. The role is provided by TValue::kCacheEntryRole or given in an optional template parameter.
* FullTypedCacheInterface<TValue, TCreateContext> - Used for secondary cache compatible storage of objects of type TValue. In addition to BasicTypedCacheInterface constraints, we require TValue::ContentSlice() to return persistable data. This simplifies usage for the normal case of simple secondary cache compatibility (can give you a Slice to the data already in memory). In addition to TCreateContext performing the role of Cache::CreateContext, it is also expected to provide a factory function for creating TValue.
* For each of these, there's a "Shared" version (e.g. FullTypedSharedCacheInterface) that holds a shared_ptr to the Cache, rather than assuming external ownership by holding only a raw `Cache*`.

These interfaces introduce specific handle types for each interface instantiation, so that it's easy to see what kind of object is controlled by a handle. (Ultimately, this might not be worth the extra complexity, but it seems OK so far.)

Note: I attempted to make the cache 'charge' automatically inferred from the cache object type, such as by expecting an ApproximateMemoryUsage() function, but this is not so clean because there are cases where we need to compute the charge ahead of time and don't want to re-compute it.

## block_cache.h
This header is essentially the replacement for the old block_like_traits.h. It includes various things to support block cache access with typed_cache.h for block-based table.

## block_based_table_reader.cc
Before this change, accessing the block cache here was an awkward mix of static polymorphism (template TBlocklike) and switch-case on a dynamic BlockType value. This change mostly unifies on static polymorphism, relying on minor hacks in block_cache.h to distinguish variants of Block. We still check BlockType in some places (especially for stats, which could be improved in follow-up work) but at least the BlockType is a static constant from the template parameter. (No more awkward partial redundancy between static and dynamic info.) This likely contributes to the overall performance improvement, but hasn't been tested in isolation.

The other key source of simplification here is a more unified system of creating block cache objects: for directly populating from primary cache and for promotion from secondary cache. Both use BlockCreateContext, for context and for factory functions.

## block_based_table_builder.cc, cache_dump_load_impl.cc
Before this change, warming caches was super ugly code. Both of these source files had switch statements to basically transition from the dynamic BlockType world to the static TBlocklike world. None of that mess is needed anymore as there's a new, untyped WarmInCache function that handles all the details just as promotion from SecondaryCache would. (Fixes `TODO akanksha: Dedup below code` in block_based_table_builder.cc.)

## Everything else
Mostly just updating Cache users to use new typed APIs when reasonably possible, or changed Cache APIs when not.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/10975

Test Plan:
tests updated

Performance test setup similar to https://github.com/facebook/rocksdb/issues/10626 (by cache size, LRUCache when not "hyper" for HyperClockCache):

34MB 1thread base.hyper -> kops/s: 0.745 io_bytes/op: 2.52504e+06 miss_ratio: 0.140906 max_rss_mb: 76.4844
34MB 1thread new.hyper -> kops/s: 0.751 io_bytes/op: 2.5123e+06 miss_ratio: 0.140161 max_rss_mb: 79.3594
34MB 1thread base -> kops/s: 0.254 io_bytes/op: 1.36073e+07 miss_ratio: 0.918818 max_rss_mb: 45.9297
34MB 1thread new -> kops/s: 0.252 io_bytes/op: 1.36157e+07 miss_ratio: 0.918999 max_rss_mb: 44.1523
34MB 32thread base.hyper -> kops/s: 7.272 io_bytes/op: 2.88323e+06 miss_ratio: 0.162532 max_rss_mb: 516.602
34MB 32thread new.hyper -> kops/s: 7.214 io_bytes/op: 2.99046e+06 miss_ratio: 0.168818 max_rss_mb: 518.293
34MB 32thread base -> kops/s: 3.528 io_bytes/op: 1.35722e+07 miss_ratio: 0.914691 max_rss_mb: 264.926
34MB 32thread new -> kops/s: 3.604 io_bytes/op: 1.35744e+07 miss_ratio: 0.915054 max_rss_mb: 264.488
233MB 1thread base.hyper -> kops/s: 53.909 io_bytes/op: 2552.35 miss_ratio: 0.0440566 max_rss_mb: 241.984
233MB 1thread new.hyper -> kops/s: 62.792 io_bytes/op: 2549.79 miss_ratio: 0.044043 max_rss_mb: 241.922
233MB 1thread base -> kops/s: 1.197 io_bytes/op: 2.75173e+06 miss_ratio: 0.103093 max_rss_mb: 241.559
233MB 1thread new -> kops/s: 1.199 io_bytes/op: 2.73723e+06 miss_ratio: 0.10305 max_rss_mb: 240.93
233MB 32thread base.hyper -> kops/s: 1298.69 io_bytes/op: 2539.12 miss_ratio: 0.0440307 max_rss_mb: 371.418
233MB 32thread new.hyper -> kops/s: 1421.35 io_bytes/op: 2538.75 miss_ratio: 0.0440307 max_rss_mb: 347.273
233MB 32thread base -> kops/s: 9.693 io_bytes/op: 2.77304e+06 miss_ratio: 0.103745 max_rss_mb: 569.691
233MB 32thread new -> kops/s: 9.75 io_bytes/op: 2.77559e+06 miss_ratio: 0.103798 max_rss_mb: 552.82
1597MB 1thread base.hyper -> kops/s: 58.607 io_bytes/op: 1449.14 miss_ratio: 0.0249324 max_rss_mb: 1583.55
1597MB 1thread new.hyper -> kops/s: 69.6 io_bytes/op: 1434.89 miss_ratio: 0.0247167 max_rss_mb: 1584.02
1597MB 1thread base -> kops/s: 60.478 io_bytes/op: 1421.28 miss_ratio: 0.024452 max_rss_mb: 1589.45
1597MB 1thread new -> kops/s: 63.973 io_bytes/op: 1416.07 miss_ratio: 0.0243766 max_rss_mb: 1589.24
1597MB 32thread base.hyper -> kops/s: 1436.2 io_bytes/op: 1357.93 miss_ratio: 0.0235353 max_rss_mb: 1692.92
1597MB 32thread new.hyper -> kops/s: 1605.03 io_bytes/op: 1358.04 miss_ratio: 0.023538 max_rss_mb: 1702.78
1597MB 32thread base -> kops/s: 280.059 io_bytes/op: 1350.34 miss_ratio: 0.023289 max_rss_mb: 1675.36
1597MB 32thread new -> kops/s: 283.125 io_bytes/op: 1351.05 miss_ratio: 0.0232797 max_rss_mb: 1703.83

Almost uniformly improving over base revision, especially for hot paths with HyperClockCache, up to 12% higher throughput seen (1597MB, 32thread, hyper). The improvement for that is likely coming from much simplified code for providing context for secondary cache promotion (CreateCallback/CreateContext), and possibly from less branching in block_based_table_reader. And likely a small improvement from not reconstituting key for DeleterFn.

Reviewed By: anand1976

Differential Revision: D42417818

Pulled By: pdillinger

fbshipit-source-id: f86bfdd584dce27c028b151ba56818ad14f7a432
2023-01-11 14:20:40 -08:00
Changyu Bi 0a2d3b663a Fix some unit test failure in ExternalSSTFileBasicTest (#11070)
Summary:
valgrind build for `ExternalSSTFileBasicTest/ExternalSSTFileBasicTest.IngestFileWithMixedValueType` and `ExternalSSTFileBasicTest/ExternalSSTFileBasicTest.IngestFileWithGlobalSeqnoPickedSeqno` started failing (see error message in T141554665). I could not repro but I suspect it is due to file ingestion range overlapping with ongoing compaction, which caused a new global seqno being assigned after https://github.com/facebook/rocksdb/issues/10988.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11070

Test Plan: monitor future valgrind tests result.

Reviewed By: hx235

Differential Revision: D42319056

Pulled By: cbi42

fbshipit-source-id: acbcd841a2a15e36b278f39ba514f4b9a6ee43ca
2023-01-05 12:10:02 -08:00
Niklas Fiekas ff04fb154b Add C API for ReadOptions::async_io (#11062)
Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/11062

Reviewed By: hx235

Differential Revision: D42297489

Pulled By: ajkr

fbshipit-source-id: 03fe1477c1ae1f8af73dc77a6986fdc7025edf4f
2023-01-04 19:36:43 -08:00
ehds 4737e1d41b fix shared state used after free (#11059)
Summary:
Before this pr,  the destruction order is `shared` -> `db_`(StressTest destruction) -> `stress`, but `compaction_filter` of `db_` will hold the `shared` pointer, so `shared` maybe used after free.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11059

Reviewed By: hx235

Differential Revision: D42297366

Pulled By: ajkr

fbshipit-source-id: 17b314635359acacd5ba62f9db5f955f451133f7
2023-01-04 19:35:34 -08:00
Hui Xiao b965a5a80e Add back Options::CompactionOptionsFIFO::allow_compaction to stress/crash test (#11063)
Summary:
**Context/Summary:**
https://github.com/facebook/rocksdb/pull/10777 was reverted (https://github.com/facebook/rocksdb/pull/10999) due to internal blocker and replaced with a better fix https://github.com/facebook/rocksdb/pull/10922. However, the revert also reverted the `Options::CompactionOptionsFIFO::allow_compaction` stress/crash coverage added by the PR.

It's an useful coverage cuz setting `Options::CompactionOptionsFIFO::allow_compaction=true` will [increase](https://github.com/facebook/rocksdb/blob/7.8.fb/db/version_set.cc#L3255) the compaction score of L0 files for FIFO and then trigger more FIFO compaction. This speed up discovery of bug related to FIFO compaction like https://github.com/facebook/rocksdb/pull/10955. To see the speedup, compare the failure occurrence in following commands with `Options::CompactionOptionsFIFO::allow_compaction=true/false`

```
--fifo_allow_compaction=1 --acquire_snapshot_one_in=10000 --adaptive_readahead=0 --allow_concurrent_memtable_write=0 --allow_data_in_errors=True --async_io=1 --avoid_flush_during_recovery=0 --avoid_unnecessary_blocking_io=1 --backup_max_size=104857600 --backup_one_in=100000 --batch_protection_bytes_per_key=0 --block_size=16384 --bloom_bits=8.869062094789008 --bottommost_compression_type=none --bytes_per_sync=0 --cache_index_and_filter_blocks=1 --cache_size=8388608 --cache_type=lru_cache --charge_compression_dictionary_building_buffer=1 --charge_file_metadata=1 --charge_filter_construction=0 --charge_table_reader=1 --checkpoint_one_in=1000000 --checksum_type=kxxHash --clear_column_family_one_in=0 --column_families=1 --compact_files_one_in=1000000 --compact_range_one_in=1000000 --compaction_pri=3 --compaction_style=2 --compaction_ttl=0 --compression_max_dict_buffer_bytes=8589934591 --compression_max_dict_bytes=16384 --compression_parallel_threads=1 --compression_type=xpress --compression_use_zstd_dict_trainer=1 --compression_zstd_max_train_bytes=0 --continuous_verification_interval=0 --data_block_index_type=0 --db=/dev/shm/rocksdb_test/rocksdb_crashtest_whitebox --db_write_buffer_size=1048576 --delpercent=4 --delrangepercent=1 --destroy_db_initially=1 --detect_filter_construct_corruption=0 --disable_wal=0 --enable_compaction_filter=0 --enable_pipelined_write=1 --expected_values_dir=/dev/shm/rocksdb_test/rocksdb_crashtest_expected --fail_if_options_file_error=1 --file_checksum_impl=xxh64 --flush_one_in=1000000 --format_version=4 --get_current_wal_file_one_in=0 --get_live_files_one_in=1000000 --get_property_one_in=1000000 --get_sorted_wal_files_one_in=0 --index_block_restart_interval=10 --index_type=2 --ingest_external_file_one_in=100 --initial_auto_readahead_size=16384 --iterpercent=10 --key_len_percent_dist=1,30,69 --level_compaction_dynamic_level_bytes=False --log2_keys_per_lock=10 --long_running_snapshots=0 --manual_wal_flush_one_in=0 --mark_for_compaction_one_file_in=10 --max_auto_readahead_size=524288 --max_background_compactions=1 --max_bytes_for_level_base=67108864 --max_key=25000000 --max_key_len=3 --max_manifest_file_size=1073741824 --max_write_batch_group_size_bytes=1048576 --max_write_buffer_number=3 --max_write_buffer_size_to_maintain=0 --memtable_prefix_bloom_size_ratio=0.01 --memtable_protection_bytes_per_key=1 --memtable_whole_key_filtering=1 --memtablerep=skip_list --min_write_buffer_number_to_merge=2 --mmap_read=0 --mock_direct_io=True --nooverwritepercent=1 --num_file_reads_for_auto_readahead=2 --open_files=-1 --open_metadata_write_fault_one_in=0 --open_read_fault_one_in=0 --open_write_fault_one_in=0 --ops_per_thread=40000 --optimize_filters_for_memory=0 --paranoid_file_checks=1 --partition_filters=0 --partition_pinning=3 --pause_background_one_in=1000000 --periodic_compaction_seconds=0 --prefix_size=7 --prefixpercent=5 --prepopulate_block_cache=0 --preserve_internal_time_seconds=3600 --progress_reports=0 --read_fault_one_in=1000 --readahead_size=0 --readpercent=15 --recycle_log_file_num=1 --reopen=0 --ribbon_starting_level=999 --secondary_cache_fault_one_in=0  --snapshot_hold_ops=100000 --sst_file_manager_bytes_per_sec=0 --sst_file_manager_bytes_per_truncate=0 --stats_dump_period_sec=0 --subcompactions=2 --sync=0 --sync_fault_injection=0 --target_file_size_base=16777216 --target_file_size_multiplier=1 --test_batches_snapshots=0 --top_level_index_pinning=1 --unpartitioned_pinning=1 --use_direct_io_for_flush_and_compaction=1 --use_direct_reads=1 --use_full_merge_v1=1 --use_merge=0 --use_multiget=0 --use_put_entity_one_in=0 --user_timestamp_size=0 --value_size_mult=32 --verify_checksum=1 --verify_checksum_one_in=1000000 --verify_db_one_in=100000 --verify_iterator_with_expected_state_one_in=5 --verify_sst_unique_id_in_manifest=1 --wal_bytes_per_sync=0 --wal_compression=none --write_buffer_size=33554432 --write_dbid_to_manifest=1 --writepercent=65
```

Therefore this PR is adding it back to stress/crash test.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11063

Test Plan: Rehearsal stress test to make sure stress/crash test is stable

Reviewed By: ajkr

Differential Revision: D42283650

Pulled By: hx235

fbshipit-source-id: 132e6396ab6e24d8dcb8fe51c62dd5211cdf53ef
2023-01-03 11:54:58 -08:00
Changyu Bi f24ef5d6ab Fix BackupEngineTest.ExcludeFiles memory leak (#11066)
Summary:
Valgrind was complaining about the test BackupEngineTest.ExcludeFiles. The cause is backup_engine not being freed similar to https://github.com/facebook/rocksdb/issues/9610.
```
==18228== Command: ./backup_engine_test --gtest_filter=BackupEngineTest.ExcludeFiles
==18228==
Note: Google Test filter = BackupEngineTest.ExcludeFiles
[==========] Running 1 test from 1 test case.
[----------] Global test environment set-up.
[----------] 1 test from BackupEngineTest
[ RUN      ] BackupEngineTest.ExcludeFiles
[       OK ] BackupEngineTest.ExcludeFiles (16264 ms)
[----------] 1 test from BackupEngineTest (16273 ms total)

[----------] Global test environment tear-down
[==========] 1 test from 1 test case ran. (16306 ms total)
[  PASSED  ] 1 test.
==18228==
==18228== HEAP SUMMARY:
==18228==     in use at exit: 14,099 bytes in 159 blocks
==18228==   total heap usage: 255,328 allocs, 255,169 frees, 497,538,546 bytes allocated
==18228==
==18228== 19 bytes in 1 blocks are possibly lost in loss record 4 of 67
==18228==    at 0x483BE63: operator new(unsigned long) (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==18228==    by 0x1E752D: void std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_construct<char*>(char*, char*, std::forward_iterator_tag) [clone .constprop.0] (basic_string.tcc:219)
==18228==    by 0x1F1898: _M_construct_aux<char*> (basic_string.h:251)
==18228==    by 0x1F1898: _M_construct<char*> (basic_string.h:270)
==18228==    by 0x1F1898: basic_string (basic_string.h:455)
==18228==    by 0x1F1898: construct<std::__cxx11::basic_string<char>, const std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&> (new_allocator.h:146)
==18228==    by 0x1F1898: construct<std::__cxx11::basic_string<char>, const std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&> (alloc_traits.h:483)
==18228==    by 0x1F1898: push_back (stl_vector.h:1189)
==18228==    by 0x1F1898: rocksdb::(anonymous namespace)::TestFs::NewWritableFile(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, rocksdb::FileOptions const&, std::unique_ptr<rocksdb::FSWritableFile, std::default_delete<rocksdb::FSWritableFile> >*, rocksdb::IODebugContext*) (backup_engine_test.cc:208)
==18228==    by 0x4B3583: rocksdb::NewWritableFile(rocksdb::FileSystem*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::unique_ptr<rocksdb::FSWritableFile, std::default_delete<rocksdb::FSWritableFile> >*, rocksdb::FileOptions const&) (read_write_util.cc:23)
==18228==    by 0x31C3A8: rocksdb::DBImpl::CreateWAL(unsigned long, unsigned long, unsigned long, rocksdb::log::Writer**) (db_impl_open.cc:1752)
==18228==    by 0x321A8C: rocksdb::DBImpl::Open(rocksdb::DBOptions const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<rocksdb::ColumnFamilyDescriptor, std::allocator<rocksdb::ColumnFamilyDescriptor> > const&, std::vector<rocksdb::ColumnFamilyHandle*, std::allocator<rocksdb::ColumnFamilyHandle*> >*, rocksdb::DB**, bool, bool) (db_impl_open.cc:1852)
==18228==    by 0x322E7F: Open (db_impl_open.cc:1660)
==18228==    by 0x322E7F: rocksdb::DB::Open(rocksdb::Options const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, rocksdb::DB**) (db_impl_open.cc:1637)
==18228==    by 0x1EE1CD: InitializeDBAndBackupEngine (backup_engine_test.cc:724)
==18228==    by 0x1EE1CD: rocksdb::(anonymous namespace)::BackupEngineTest::OpenDBAndBackupEngine(bool, bool, rocksdb::(anonymous namespace)::BackupEngineTest::ShareOption) (backup_engine_test.cc:732)
==18228==    by 0x217585: rocksdb::(anonymous namespace)::BackupEngineTest_ExcludeFiles_Test::TestBody() (backup_engine_test.cc:4232)
==18228==    by 0x296143: HandleSehExceptionsInMethodIfSupported<testing::Test, void> (gtest-all.cc:3899)
==18228==    by 0x296143: void testing::internal::HandleExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*) (gtest-all.cc:3935)
==18228==    by 0x28A0A5: testing::Test::Run() [clone .part.0] (gtest-all.cc:3973)
==18228==    by 0x28A364: Run (gtest-all.cc:3965)
==18228==    by 0x28A364: testing::TestInfo::Run() [clone .part.0] (gtest-all.cc:4149)
...
```

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11066

Test Plan: make -j24 J=24 ROCKSDBTESTS_SUBSET=backup_engine_test valgrind_check_some

Reviewed By: ajkr

Differential Revision: D42297791

Pulled By: cbi42

fbshipit-source-id: db67982b27b91cc78e1a9f4a96da0cba7c9785b7
2022-12-31 10:56:55 -08:00
mrambacher 559aaa3577 Add ability to have unit tests for ROCKSDB_PLUGINS (#11052)
Summary:
This is based on speedb PR [143](https://github.com/speedb-io/speedb/pull/143).

This PR adds the ability to add a xxx_TESTS variable to the make or cmake files for a plugin.  When set, those files will be added to the unit tests built and executed by the corresponding make system.

Note that the rule for building plugin tests via make could be expanded to almost every other unit test in RocksDB.  This expansion would allow for a much smaller/simpler Makefile and make it easier to add new test files to RocksDB.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11052

Reviewed By: cbi42

Differential Revision: D42212269

Pulled By: ajkr

fbshipit-source-id: d02668f7f4466900d63c90bb4f7962d23fcc7114
2022-12-30 16:55:58 -08:00
ywave 7f71880de9 Fix typo in flushing stats CF (#11055)
Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/11055

Test Plan: make check

Reviewed By: cbi42

Differential Revision: D42232828

Pulled By: ajkr

fbshipit-source-id: 3b46514aebff4da7e47b9954b90800ba4a3ba30b
2022-12-30 16:55:55 -08:00
HuangYi 33aca893c2 add c-api for setting option optimize_filters_for_memory (#11044)
Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/11044

Reviewed By: cbi42

Differential Revision: D42152851

Pulled By: ajkr

fbshipit-source-id: 81710d9503ba4f23f112c72ebf16a48112e27158
2022-12-30 16:53:00 -08:00
Hui Xiao 9502856edd Add missing range conflict check between file ingestion and RefitLevel() (#10988)
Summary:
**Context:**
File ingestion never checks whether the key range it acts on overlaps with an ongoing RefitLevel() (used in `CompactRange()` with `change_level=true`). That's because RefitLevel() doesn't register and make its key range known to file ingestion. Though it checks overlapping with other compactions by https://github.com/facebook/rocksdb/blob/7.8.fb/db/external_sst_file_ingestion_job.cc#L998.

RefitLevel() (used in `CompactRange()` with `change_level=true`) doesn't check whether the key range it acts on overlaps with an ongoing file ingestion. That's because file ingestion does not register and make its key range known to other compactions.
- Note that non-refitlevel-compaction (e.g, manual compaction w/o RefitLevel() or general compaction) also does not check key range overlap with ongoing file ingestion for the same reason.
- But it's fine. Credited to cbi42's discovery, `WaitForIngestFile` was called by background and foreground compactions. They were introduced in 0f88160f67, 5c64fb67d2 and 87dfc1d23e.
- Regardless, this PR registers file ingestion like a compaction is a general approach that will also add range conflict check between file ingestion and non-refitlevel-compaction, though it has not been the issue motivated this PR.

Above are bugs resulting in two bad consequences:
- If file ingestion and RefitLevel() creates files in the same level, then range-overlapped files will be created at that level and caught as corruption by `force_consistency_checks=true`
- If file ingestion and RefitLevel() creates file in different levels, then with one further compaction on the ingested file, it can result in two same keys both with seqno 0 in two different levels. Then with iterator's [optimization](c62f322169/db/db_iter.cc (L342-L343)) that assumes no two same keys both with seqno 0, it will either break this assertion in debug build or, even worst, return value of this same key for the key after it, which is the wrong value to return, in release build.

Therefore we decide to introduce range conflict check for file ingestion and RefitLevel() inspired from the existing range conflict check among compactions.

**Summary:**
- Treat file ingestion job and RefitLevel() as `Compaction` of new compaction reasons: `CompactionReason::kExternalSstIngestion` and `CompactionReason::kRefitLevel` and register/unregister them.  File ingestion is treated as compaction from L0 to different levels and RefitLevel() as compaction from source level to target level.
- Check for `RangeOverlapWithCompaction` with other ongoing compactions, `RegisterCompaction()` on this "compaction" before changing the LSM state in `VersionStorageInfo`, and `UnregisterCompaction()` after changing.
- Replace scattered fixes (0f88160f67, 5c64fb67d2 and 87dfc1d23e.) that prevents overlapping between file ingestion and non-refit-level compaction with this fix cuz those practices are easy to overlook.
- Misc: logic cleanup, see PR comments

Pull Request resolved: https://github.com/facebook/rocksdb/pull/10988

Test Plan:
- New unit test `DBCompactionTestWithOngoingFileIngestionParam*` that failed pre-fix and passed afterwards.
- Made compatible with existing tests, see PR comments
- make check
- [Ongoing] Stress test rehearsal with normal value and aggressive CI value https://github.com/facebook/rocksdb/pull/10761

Reviewed By: cbi42

Differential Revision: D41535685

Pulled By: hx235

fbshipit-source-id: 549833a577ba1496d20a870583d4caa737da1258
2022-12-29 15:05:36 -08:00
Changyu Bi cc6f323705 Include estimated bytes deleted by range tombstones in compensated file size (#10734)
Summary:
compensate file sizes in compaction picking so files with range tombstones are preferred, such that they get compacted down earlier as they tend to delete a lot of data. This PR adds a `compensated_range_deletion_size` field in FileMeta that is computed during Flush/Compaction and persisted in MANIFEST. This value is added to `compensated_file_size` which will be used for compaction picking. Currently, for a file in level L, `compensated_range_deletion_size` is set to the estimated bytes deleted by range tombstone of this file in all levels > L. This helps to reduce space amp when data in older levels are covered by range tombstones in level L.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/10734

Test Plan:
- Added unit tests.
- benchmark to check if the above definition `compensated_range_deletion_size` is reducing space amp as intended, without affecting write amp too much. The experiment set up favorable for this optimization: large range tombstone issued infrequently. Command used:
```
./db_bench -benchmarks=fillrandom,waitforcompaction,stats,levelstats -use_existing_db=false -avoid_flush_during_recovery=true -write_buffer_size=33554432 -level_compaction_dynamic_level_bytes=true -max_background_jobs=8 -max_bytes_for_level_base=134217728 -target_file_size_base=33554432 -writes_per_range_tombstone=500000 -range_tombstone_width=5000000 -num=50000000 -benchmark_write_rate_limit=8388608 -threads=16 -duration=1800 --max_num_range_tombstones=1000000000
```

In this experiment, each thread wrote 16 range tombstones over the duration of 30 minutes, each range tombstone has width 5M that is the 10% of the key space width. Results shows this PR generates a smaller DB size.

Compaction stats from this PR:
```
Level    Files   Size     Score Read(GB)  Rn(GB) Rnp1(GB) Write(GB) Wnew(GB) Moved(GB) W-Amp Rd(MB/s) Wr(MB/s) Comp(sec) CompMergeCPU(sec) Comp(cnt) Avg(sec) KeyIn KeyDrop Rblob(GB) Wblob(GB)
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
  L0      2/0   31.54 MB   0.5      0.0     0.0      0.0       8.4      8.4       0.0   1.0      0.0     63.4    135.56            110.94       544    0.249       0      0       0.0       0.0
  L4      3/0   96.55 MB   0.8     18.5     6.7     11.8      18.4      6.6       0.0   2.7     65.3     64.9    290.08            284.03       108    2.686    284M  1957K       0.0       0.0
  L5     15/0   404.41 MB   1.0     19.1     7.7     11.4      18.8      7.4       0.3   2.5     66.6     65.7    292.93            285.34       220    1.332    293M  3808K       0.0       0.0
  L6    143/0    4.12 GB   0.0     45.0     7.5     37.5      41.6      4.1       0.0   5.5     71.2     65.9    647.00            632.66       251    2.578    739M    47M       0.0       0.0
 Sum    163/0    4.64 GB   0.0     82.6    21.9     60.7      87.2     26.5       0.3  10.4     61.9     65.4   1365.58           1312.97      1123    1.216   1318M    52M       0.0       0.0
```

Compaction stats from main:
```
Level    Files   Size     Score Read(GB)  Rn(GB) Rnp1(GB) Write(GB) Wnew(GB) Moved(GB) W-Amp Rd(MB/s) Wr(MB/s) Comp(sec) CompMergeCPU(sec) Comp(cnt) Avg(sec) KeyIn KeyDrop Rblob(GB) Wblob(GB)
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
  L0      0/0    0.00 KB   0.0      0.0     0.0      0.0       8.4      8.4       0.0   1.0      0.0     60.5    142.12            115.89       569    0.250       0      0       0.0       0.0
  L4      3/0   85.68 MB   1.0     17.7     6.8     10.9      17.6      6.7       0.0   2.6     62.7     62.3    289.05            281.79       112    2.581    272M  2309K       0.0       0.0
  L5     11/0   293.73 MB   1.0     18.8     7.5     11.2      18.5      7.2       0.5   2.5     64.9     63.9    296.07            288.50       220    1.346    288M  4365K       0.0       0.0
  L6    130/0    3.94 GB   0.0     51.5     7.6     43.9      47.9      3.9       0.0   6.3     67.2     62.4    784.95            765.92       258    3.042    848M    51M       0.0       0.0
 Sum    144/0    4.31 GB   0.0     88.0    21.9     66.0      92.3     26.3       0.5  11.0     59.6     62.5   1512.19           1452.09      1159    1.305   1409M    58M       0.0       0.0```

Reviewed By: ajkr

Differential Revision: D39834713

Pulled By: cbi42

fbshipit-source-id: fe9341040b8704a8fbb10cad5cf5c43e962c7e6b
2022-12-29 13:28:24 -08:00
Peter Dillinger 02f2b20864 Add BackupEngine feature to exclude files (#11030)
Summary:
We have a request for RocksDB to essentially support
disconnected incremental backup. In other words, if there is limited
or no connectivity to the primary backup dir, we should still be able to
take an incremental backup relative to that primary backup dir,
assuming some metadata about that primary dir is available (and
obviously anticipating primary backup dir will be fully available if
restore is needed).

To support that, this feature allows the API user to "exclude" DB
files from backup. This only applies to files that can be shared
between backups (sst and blob files), and excluded files are
tracked in the backup metadata sufficiently to ensure they are
restored at restore time. At restore time, the user provides
a set of alternate backup directories (as open BackupEngines, which
can be read-only), and excluded files must be found in one of the
backup directories ("included" in some backup).

This feature depends on backup schema version 2 features, though
schema version 2.0 support is not sufficient to read / restore a
backup with exclusions. This change updates the schema version to
2.1 because of this feature, so that it's easy to recognize whether
a RocksDB release supports this feature, while backups not using the
feature are fully compatible with 2.0.

Also in this PR:
* Stacked on https://github.com/facebook/rocksdb/pull/11029
* Allow progress_callback to be empty, not just no-op function, and
recover from exceptions thrown by BackupEngine callbacks.
* The internal-only `AsBackupEngine()` function is working around the
diamond hierarchy of `BackupEngineImplThreadSafe` to get to the
internals, without using confusing features like virtual inheritance.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11030

Test Plan: unit tests added / updated

Reviewed By: ajkr

Differential Revision: D42004388

Pulled By: pdillinger

fbshipit-source-id: 31b6e533d308a5462e528d9012d650482d974077
2022-12-29 10:42:50 -08:00
anand76 bec4264813 Avoid mixing sync and async prefetch (#11050)
Summary:
Reading uncompression dict block always uses sync reads, while data blocks may use async reads and prefetching. This causes problems in FilePrefetchBuffer. So avoid mixing the two by reading the uncompression dict straight from the file.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11050

Test Plan: Crash test

Reviewed By: akankshamahajan15

Differential Revision: D42194682

Pulled By: anand1976

fbshipit-source-id: aaa8b396fdfe966b157e210f5ef8501c45b7b69e
2022-12-21 22:42:19 -08:00
Peter Dillinger e6b6e74154 Make CompactRange() more aware of SstPartitionerFactory (#11032)
Summary:
Some users are at least considering using SstPartitioner to support efficient physical migration of specific key ranges between RocksDB instances. One might expect manual `CompactRange()` over a narrow key range across some partition to enforce partitioning of any SST files crossing that partition boundary, but that currently only works if there are keys within that range.

This change makes the overlap logic in CompactRange more aware of the partitioner to automatically select relevant files crossing a partition boundary, even when they otherwise would not be selected due to the compaction range falling in a gap between entries.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11032

Test Plan: unit test included

Reviewed By: hx235

Differential Revision: D41981380

Pulled By: pdillinger

fbshipit-source-id: 2fe445bdddc73c00276c20f295cc1fa33d15b05a
2022-12-21 15:41:10 -08:00
Alan Paxton f8969ad7d4 Improve Java API get() performance by reducing copies (#10970)
Summary:
Performance improvements for `get()` paths in the RocksJava API (JNI).
Document describing the performance results.

Replace uses of the legacy `DB::Get()` method wrapper returning data in a `std::string` with direct calls to `DB::Get()` passing a pinnable slice to receive this data. Copying from a pinned slice direct to the destination java byte array, without going via an intervening std::string, is a major performance gain for this code path.

Note that this gain only comes where `DB::Get()` is able to return a pinned buffer; where it has to copy into the buffer owned by the slice, there is still the intervening copy and no performance gain. It may be possible to address this case too, but it is not trivial.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/10970

Reviewed By: pdillinger

Differential Revision: D42125567

Pulled By: ajkr

fbshipit-source-id: b7a4df7523b0420cadb1e9b6c7da3ec030a8da34
2022-12-21 11:54:24 -08:00
anand76 dbf37c290a Fix async prefetch heap use after free (#11049)
Summary:
This PR fixes a heap use after free bug in the async prefetch code that happens in the following scenario -
1. Scan thread starts 2 async reads for Seek, one for the seek block and one for prefetching
2. Before the first read in https://github.com/facebook/rocksdb/issues/1 completes, another thread reads and loads the block in cache
3. The first scan thread finds the block in cache, continues and the next block cache miss is for a block that spans the boundary of the 2 prefetch buffers, and the 1st read is complete but the 2nd one is not complete yet
4. The scan thread will reallocate (i.e free the old buffer and allocate a new one) the 2nd prefetch buffer, and the in-progress prefetch is orphaned
5. The orphaned prefetch finally completes, resulting in a use after free

Also add a few asserts to surface bugs earlier in the crash tests.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11049

Test Plan: Repro with db_stress and verify the fix

Reviewed By: akankshamahajan15

Differential Revision: D42181118

Pulled By: anand1976

fbshipit-source-id: 1ac55d2f64a89ce128c1c574262b8aa7d82eb8cc
2022-12-21 09:15:53 -08:00
Changyu Bi 53b703eafe Fix an assertion failure in `CompactionOutputs::AddRangeDels()` (#11040)
Summary:
the [assertion](c3f720c60d/db/compaction/compaction_outputs.cc (L643)) in `CompactionOutputs::AddRangeDels()` can fail after https://github.com/facebook/rocksdb/pull/10802. The assertion fails when `lower_bound_from_range_tombstone` is true during `AddRangeDels()` for a new compaction output file, while the lower bound range tombstone key has seqno 0 and op_type kTypeRangeDeletion. It can have seqno 0 when it was truncated at a point key whose seqno was zeroed out during compaction, the seqno and op_type could be set [here](c3f720c60d/db/compaction/compaction_outputs.cc (L594)). This PR fixes the assertion excluding the case when `lower_bound_from_range_tombstone` is true.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11040

Test Plan: CI

Reviewed By: ajkr

Differential Revision: D42119914

Pulled By: cbi42

fbshipit-source-id: 0897e71b5304cb02aac30f71667b590c37b72baf
2022-12-19 16:36:39 -08:00
ehds ddad943c29 snapshots of FragmentedRangeTombstoneList must in ascending order (#11046)
Summary:
`snapshots` argument of `FragmentedRangeTombstoneList` should be in ascending order.

If we pass it in descending order order, it will not work.

for example:

```
  auto range_del_iter = MakeRangeDelIter({{"a", "e", 3},{"a","e", 6}});

  FragmentedRangeTombstoneList fragment_list(
      std::move(range_del_iter), bytewise_icmp, true /* for_compaction */,
      {8 ,7 ,4} /* snapshots */);
    FragmentedRangeTombstoneIterator iter(&fragment_list, bytewise_icmp,
                                        kMaxSequenceNumber /* upper_bound */);
  VerifyFragmentedRangeDels(&iter, {{"a", "e", 6}, {"a", "e", 3}});
```
VerifyFragmentedRangeDels will fail.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11046

Reviewed By: ajkr

Differential Revision: D42148654

Pulled By: cbi42

fbshipit-source-id: a2e76f96dccf56fcca1a91cb8da9b99145f68026
2022-12-19 15:06:22 -08:00
anand76 692d6be358 Prevent db_stress failure when io_uring is disabled (#11045)
Summary:
The IO uring usage is disabled in RocksDB by default and, as a result, PosixRandomAccessFile::ReadAsync returns a NotSupported() status. This was causing stress test failures with MultiGet and async_io combination. Fix it by relying on redirection of ReadAsync to Read when default Env is used in db_stress.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11045

Reviewed By: akankshamahajan15

Differential Revision: D42136213

Pulled By: anand1976

fbshipit-source-id: fc7904d8ece74d7e8f2e1a34c3d70bd5774fb45f
2022-12-19 11:38:42 -08:00
anand76 c3f720c60d Enable ReadAsync testing and fault injection in db_stress (#11037)
Summary:
The db_stress code uses a wrapper Env on top of the raw/fault injection Env. The wrapper, DbStressEnvWrapper, is a legacy Env and thus has a default implementation of ReadAsync that just does a sync read. As a result, the ReadAsync implementations of PosixFileSystem and other file systems weren't being tested. Also, the ReadAsync interface wasn't implemented in FaultInjectionTestFS. This change implements the necessary interfaces in FaultInjectionTestFS and derives DbStressEnvWrapper from FileSystemWrapper rather than EnvWrapper.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11037

Test Plan: Run db_stress standalone and crash test. With this change, db_stress is able to repro the bug fixed in https://github.com/facebook/rocksdb/issues/10890.

Reviewed By: akankshamahajan15

Differential Revision: D42061290

Pulled By: anand1976

fbshipit-source-id: 7f0331fd15ee33fb4f7f0f4b22b206fe801ba074
2022-12-15 15:48:50 -08:00