Commit Graph

12888 Commits

Author SHA1 Message Date
Peter Dillinger 96340dbce2 Options for file temperature for more files (#12957)
Summary:
We have a request to use the cold tier as primary source of truth for the DB, and to best support such use cases and to complement the existing options controlling SST file temperatures, we add two new DB options:
* `metadata_write_temperature` for DB "small" files that don't contain much user data
* `wal_write_temperature` for WALs.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12957

Test Plan: Unit test included, though it's hard to be sure we've covered all the places

Reviewed By: jowlyzhang

Differential Revision: D61664815

Pulled By: pdillinger

fbshipit-source-id: 8e19c9dd8fd2db059bb15f74938d6bc12002e82b
2024-08-23 19:49:25 -07:00
Jay Huh d6aed64de4 Disable benchmark-linux (#12964)
Summary:
Disabling the job temporarily. We will re-enable this when ready again

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12964

Reviewed By: ltamasi

Differential Revision: D61740941

Pulled By: jaykorean

fbshipit-source-id: 167e50c4f5e38d508a8e56633261611467f30690
2024-08-23 18:39:16 -07:00
eniac1024 f5c5f881d2 Fix MultiGet with timestamps (#12943)
Summary:
Issue: MultiGet(PinnableSlice) can't read out all timestamps.
Fixed the impl, and added an UT as well. In the original impl, if MultiGet reads multiple column families, a later column family would clean up timestamps of previous column family.
Fix: https://github.com/facebook/rocksdb/issues/12950#issue-2476996580

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12943

Reviewed By: anand1976

Differential Revision: D61729257

Pulled By: pdillinger

fbshipit-source-id: 55267c26076c8a59acedd27e14714711729a40df
2024-08-23 13:58:04 -07:00
Changyu Bi c62de54c7c Record largest seqno in table properties and verify in file ingestion (#12951)
Summary:
this helps to avoid scanning input files when ingesting db generated files: ecb844babd/db/external_sst_file_ingestion_job.cc (L917-L935)

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12951

Test Plan:
* `IngestDBGeneratedFileTest.FailureCase` is updated to verify that this table property is verified during ingestion
* existing unit tests for other ingestion use cases.

Reviewed By: jowlyzhang

Differential Revision: D61608285

Pulled By: cbi42

fbshipit-source-id: b5b7aae9741531349ab247be6ffaa3f3628b76ca
2024-08-21 16:24:18 -07:00
Jay Huh 4df71db246 Fix build for macos-arm64-macosx-clang17-no-san (#12949)
Summary:
When merged into internal code base we see the following error. This should fix it.

```
Actions failed:
    [2024-08-20T07:45:53.879-07:00] Action failed: fbcode//rocksdb/src:rocksdb_lib (cfg:macos-arm64-macosx-clang17-no-san#e5847010950663ca) (cxx_compile util/write_batch_util.cc)
[2024-08-20T07:45:53.879-07:00] Remote command returned non-zero exit code 1
[2024-08-20T07:45:53.879-07:00] Remote action, reproduce with: `frecli cas download-action 2fe3749f2d3ea6107cce103d4e2be1dcc76a9df797bae308cde5eaccc65201b7:145`
fbcode/rocksdb/src/include/rocksdb/write_batch.h:460:14: error: no template named 'unordered_map' in namespace 'std'; did you mean 'unordered_set'?
  const std::unordered_map<uint32_t, size_t>& GetColumnFamilyToTimestampSize() {
        ~~~~~^~~~~~~~~~~~~
fbcode/rocksdb/src/include/rocksdb/write_batch.h:540:8: error: no template named 'unordered_map' in namespace 'std'; did you mean 'unordered_set'?
  std::unordered_map<uint32_t, size_t> cf_id_to_ts_sz_;
  ~~~~~^~~~~~~~~~~~~
/paragon/pods/259551525/home/execution/3/202ac945754041b6bc424b0c35e42c9d/work/buck-out/v2/gen/fbsource/a90614bbe22ec1d7/xplat/toolchains/minimal_xcode/__clang_genrule__/out/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__memory/compressed_pair.h:113:3: error: static_assert failed due to requirement '!is_same<unsigned long, unsigned long>::value' "__compressed_pair cannot be instantiated when T1 and T2 are the same type; The current implementation is NOT ABI-compatible with the previous implementation for this configuration"
  static_assert((!is_same<_T1, _T2>::value),
  ^              ~~~~~~~~~~~~~~~~~~~~~~~~~
```

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12949

Test Plan: CI

Reviewed By: jowlyzhang, cbi42

Differential Revision: D61577604

Pulled By: jaykorean

fbshipit-source-id: 3584a2cd550a303346d80ccc5cc90f4a9b3e2da2
2024-08-21 10:27:50 -07:00
Yu Zhang 945f60b157 Add some documentation for version edit handlers (#12948)
Summary:
As titled. No functional change.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12948

Reviewed By: hx235

Differential Revision: D61551254

Pulled By: jowlyzhang

fbshipit-source-id: ccf53d78bd2f18f174d7e61972e5de467c96ce76
2024-08-21 10:09:10 -07:00
Radek Hubner ecb844babd Enable Continuous Benchmarking of RocksDB (#12885)
Summary:
This pull request transitions the benchmarking process from CircleCI to GitHub Actions. The benchmarking jobs will now be executed on a self-hosted runner. Unlike the previous CircleCI configuration, where jobs were queued due to the long execution time (nearly 60 minutes per job), the new setup schedules the benchmarking tasks to run every two hours.

Closes https://github.com/facebook/rocksdb/issues/12615

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12885

Reviewed By: pdillinger

Differential Revision: D61422468

Pulled By: jaykorean

fbshipit-source-id: 10535865c849797825f9652e4e9ef367b3d73599
2024-08-20 11:47:52 -07:00
Yu Zhang 81d52bdc1a Fix UDT in memtable only assertions (#12946)
Summary:
Empty memtables can be legitimately created and flushed, for example by error recovery flush attempts:

273b3eadf0/db/db_impl/db_impl_compaction_flush.cc (L2309-L2312)

This check is updated to be considerate of this.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12946

Reviewed By: hx235

Differential Revision: D61492477

Pulled By: jowlyzhang

fbshipit-source-id: 7d16fcaea457948546072f85b3650fd1cc24f9db
2024-08-20 09:19:52 -07:00
Jay Huh d223d34bf3 Fix HISTORY.md file for 9.6 release (#12947)
Summary:
# Summary

Mistakenly double-updated the HISTORY.md file by running `unreleased_history/release.sh` after the first commit in  https://github.com/facebook/rocksdb/issues/12945. Manually fixing the file to reflect the correct content

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12947

Test Plan: N/A. History file change.

Reviewed By: cbi42

Differential Revision: D61512756

Pulled By: jaykorean

fbshipit-source-id: 50dc7e92a945fa80c7dfd01cc89243fd5eaf0548
2024-08-19 22:39:17 -07:00
Jay Huh 5b8f5cbcf4 Update main branch for 9.6 release (#12945)
Summary:
Main branch cut at defd97bc9.
Updated HISTORY.md, version and format compatibility test.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12945

Test Plan: CI

Reviewed By: jowlyzhang

Differential Revision: D61482149

Pulled By: jaykorean

fbshipit-source-id: 4edf7c0a8c6e4df8fcc938bc778dfd02981d0c55
2024-08-19 17:36:23 -07:00
Changyu Bi defd97bc9d Add an option to verify memtable key order during reads (#12889)
Summary:
add a new CF option `paranoid_memory_checks` that allows additional data integrity validations during read/scan. Currently, skiplist-based memtable will validate the order of keys visited. Further data validation can be added in different layers. The option will be opt-in due to performance overhead.

The motivation for this feature is for services where data correctness is critical and want to detect in-memory corruption earlier. For a corrupted memtable key, this feature can help to detect it during during reads instead of during flush with existing protections (OutputValidator that verifies key order or per kv checksum). See internally linked task for more context.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12889

Test Plan:
* new unit test added for paranoid_memory_checks=true.
* existing unit test for paranoid_memory_checks=false.
* enable in stress test.

Performance Benchmark: we check for performance regression in read path where data is in memtable only. For each benchmark, the script was run at the same time for main and this PR:
* Memtable-only randomread ops/sec:
```
(for I in $(seq 1 50);do ./db_bench --benchmarks=fillseq,readrandom --write_buffer_size=268435456 --writes=250000 --num=250000 --reads=500000  --seed=1723056275 2>&1 | grep "readrandom"; done;) | awk '{ t += $5; c++; print } END { print 1.0 * t / c }';

Main: 608146
PR with paranoid_memory_checks=false: 607727 (- %0.07)
PR with paranoid_memory_checks=true: 521889 (-%14.2)
```

* Memtable-only sequential scan ops/sec:
```
(for I in $(seq 1 50); do ./db_bench--benchmarks=fillseq,readseq[-X10] --write_buffer_size=268435456 --num=1000000  --seed=1723056275 2>1 | grep "\[AVG 10 runs\]"; done;) | awk '{ t += $6; c++; print; } END { printf "%.0f\n", 1.0 * t / c }';

Main: 9180077
PR with paranoid_memory_checks=false: 9536241 (+%3.8)
PR with paranoid_memory_checks=true: 7653934 (-%16.6)
```

* Memtable-only reverse scan ops/sec:
```
(for I in $(seq 1 20); do ./db_bench --benchmarks=fillseq,readreverse[-X10] --write_buffer_size=268435456 --num=1000000  --seed=1723056275 2>1 | grep "\[AVG 10 runs\]"; done;) | awk '{ t += $6; c++; print; } END { printf "%.0f\n", 1.0 * t / c }';

 Main: 1285719
 PR with integrity_checks=false: 1431626 (+%11.3)
 PR with integrity_checks=true: 811031 (-%36.9)
```

The `readrandom` benchmark shows no regression. The scanning benchmarks show improvement that I can't explain.

Reviewed By: pdillinger

Differential Revision: D60414267

Pulled By: cbi42

fbshipit-source-id: a70b0cbeea131f1a249a5f78f9dc3a62dacfaa91
2024-08-19 13:53:25 -07:00
Jay Huh 273b3eadf0 Add Remote Compaction Installation Callback Function (#12940)
Summary:
Add an optional callback function upon remote compaction temp output installation. This will be internally used for setting the final status in the Offload Infra.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12940

Test Plan:
Unit Test added
```
./compaction_service_test
```

_Also internally tested by manually merging into internal code base_

Reviewed By: anand1976

Differential Revision: D61419157

Pulled By: jaykorean

fbshipit-source-id: 66831685bc403949c26bfc65840dd1900d2a5a67
2024-08-19 11:22:43 -07:00
Yu Zhang 295326b6ee Best efforts recovery recover seqno prefix (#12938)
Summary:
This PR make best efforts recovery more permissive by allowing it to recover incomplete Version that presents a valid point in time view from the user's perspective. Currently, a Version is only valid and saved if all files consisting that Version can be found. With this change, if only a suffix of L0 files (and their associated blob files) are missing,  a valid Version is also available to be saved and recover to. Note that we don't do this if the column family was atomically flushed. Because atomic flush also need a consistent view across the column families, we cannot guarantee that if we are recovering to incomplete version.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12938

Test Plan: Existing tests and added unit tests.

Reviewed By: anand1976

Differential Revision: D61414381

Pulled By: jowlyzhang

fbshipit-source-id: f9b73deb34d35ad696ab42315928b656d586262a
2024-08-16 17:18:54 -07:00
Peter Dillinger 4d3518951a Option to decouple index and filter partitions (#12939)
Summary:
Partitioned metadata blocks were introduced back in 2017 to deal more gracefully with large DBs where RAM is relatively scarce and some data might be much colder than other data. The feature allows metadata blocks to compete for memory in the block cache against data blocks while alleviating tail latencies and thrash conditions that can arise with large metadata blocks (sometimes megabytes each) that can arise with large SST files. In general, the cost to partitioned metadata is more CPU in accesses (especially for filters where more binary search is needed before hashing can be used) and a bit more memory fragmentation and related overheads.

However the feature has always had a subtle limitation with a subtle effect on performance: index partitions and filter partitions must be cut at the same time, regardless of which wins the space race (hahaha) to metadata_block_size. Commonly filters will be a few times larger than indexes, so index partitions will be under-sized compared to filter (and data) blocks. While this does affect fragmentation and related overheads a bit, I suspect the bigger impact on performance is in the block cache. The coupling of the partition cuts would be defensible if the binary search done to find the filter block was used (on filter hit) to short-circuit binary search to an index partition, but that optimization has not been developed.

Consider two metadata blocks, an under-sized one and a normal-sized one, covering proportional sections of the key space with the same density of read queries. The under-sized one will be more prone to eviction from block cache because it is used less often. This is unfair because of its despite its proportionally smaller cost of keeping in block cache, and most of the cost of a miss to re-load it (random IO) is not proportional to the size (similar latency etc. up to ~32KB).

 ## This change

Adds a new table option decouple_partitioned_filters allows filter blocks and index blocks to be cut independently. To make this work, the partitioned filter block builder needs to know about the previous key, to generate an appropriate separator for the partition index. In most cases, BlockBasedTableBuilder already has easy access to the previous key to provide to the filter block builder.

This change includes refactoring to pass that previous key to the filter builder when available, with the filter building caching the previous key itself when unavailable, such as during compression dictionary training and some unit tests. Access to the previous key eliminates the need to track the previous prefix, which results in a small SST construction CPU win in prefix filtering cases, regardless of coupling, and possibly a small regression for some non-prefix cases, regardless of coupling, but still overall improvement especially with https://github.com/facebook/rocksdb/issues/12931.

Suggested follow-up:
* Update confusing use of "last key" to refer to "previous key"
* Expand unit test coverage with parallel compression and dictionary training
* Consider an option or enhancement to alleviate under-sized metadata blocks "at the end" of an SST file due to no coordination or awareness of when files are cut.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12939

Test Plan:
unit tests updated. Also did some unit test runs with "hard wired" usage of parallel compression and dictionary training code paths to ensure they were working. Also ran blackbox_crash_test for a while with the new feature.

 ## SST write performance (CPU)

Using the same testing setup as in https://github.com/facebook/rocksdb/issues/12931 but with -decouple_partitioned_filters=1 in the "after" configuration, which benchmarking shows makes almost no difference in terms of SST write CPU. "After" vs. "before" this PR
```
-partition_index_and_filters=0 -prefix_size=0 -whole_key_filtering=1
923691 vs. 924851 (-0.13%)
-partition_index_and_filters=0 -prefix_size=8 -whole_key_filtering=0
921398 vs. 922973 (-0.17%)
-partition_index_and_filters=0 -prefix_size=8 -whole_key_filtering=1
902259 vs. 908756 (-0.71%)
-partition_index_and_filters=1 -prefix_size=8 -whole_key_filtering=0
917932 vs. 916901 (+0.60%)
-partition_index_and_filters=1 -prefix_size=8 -whole_key_filtering=0
912755 vs. 907298 (+0.60%)
-partition_index_and_filters=1 -prefix_size=8 -whole_key_filtering=1
899754 vs. 892433 (+0.82%)
```
I think this is a pretty good trade, especially in attracting more movement toward partitioned configurations.

 ## Read performance

Let's see how decoupling affects read performance across various degrees of memory constraint. To simplify LSM structure, we're using FIFO compaction. Since decoupling will overall increase metadata block size, we control for this somewhat with an extra "before" configuration with larger metadata block size setting (8k instead of 4k). Basic setup:

```
(for CS in 0300 1200; do TEST_TMPDIR=/dev/shm/rocksdb1 ./db_bench -benchmarks=fillrandom,flush,readrandom,block_cache_entry_stats -num=5000000 -duration=30 -disable_wal=1 -write_buffer_size=30000000 -bloom_bits=10 -compaction_style=2 -fifo_compaction_max_table_files_size_mb=10000 -fifo_compaction_allow_compaction=0 -partition_index_and_filters=1 -statistics=1 -cache_size=${CS}000000 -metadata_block_size=4096 -decouple_partitioned_filters=1 2>&1 | tee results-$CS; done)
```

And read ops/s results:

```CSV
Cache size MB,After/decoupled/4k,Before/4k,Before/8k
3,15593,15158,12826
6,16295,16693,14134
10,20427,20813,18459
20,27035,26836,27384
30,33250,31810,33846
60,35518,32585,35329
100,36612,31805,35292
300,35780,31492,35481
1000,34145,31551,35411
1100,35219,31380,34302
1200,35060,31037,34322
```

If you graph this with log scale on the X axis (internal link: https://pxl.cl/5qKRc), you see that the decoupled/4k configuration is essentially the best of both the before/4k and before/8k configurations: handles really tight memory closer to the old 4k configuration and handles generous memory closer to the old 8k configuration.

Reviewed By: jowlyzhang

Differential Revision: D61376772

Pulled By: pdillinger

fbshipit-source-id: fc2af2aee44290e2d9620f79651a30640799e01f
2024-08-16 15:34:31 -07:00
Hui Xiao 75a1230ce8 Fix improper ExpectedValute::Exists() usages and disable compaction during VerifyDB() in crash test (#12933)
Summary:
**Context:**
Adding assertion `!PendingPut()&&!PendingDelete()` in `ExpectedValute::Exists()` surfaced a couple improper usages of `ExpectedValute::Exists()` in the crash test
- Commit phase of `ExpectedValue::Delete()`/`SyncDelete()`:
When we issue delete to expected value during commit phase or `SyncDelete()` (used in crash recovery verification) as below, we don't really care about the result.
d458331ee9/db_stress_tool/expected_state.cc (L73)
d458331ee9/db_stress_tool/expected_value.cc (L52)
That means, we don't really need to check for `Exists()` d458331ee9/db_stress_tool/expected_value.cc (L24-L26).
This actually gives an alternative solution to b65e29a4a9 to solve false-positive assertion violation.
- TestMultiGetXX() path: `Exists()` is called without holding the lock as required

f63428bcc7/db_stress_tool/no_batched_ops_stress.cc (L2688)
```
void MaybeAddKeyToTxnForRYW(
      ThreadState* thread, int column_family, int64_t key, Transaction* txn,
      std::unordered_map<std::string, ExpectedValue>& ryw_expected_values) {
    assert(thread);
    assert(txn);

    SharedState* const shared = thread->shared;
    assert(shared);

    if (!shared->AllowsOverwrite(key) && shared->Exists(column_family, key)) {
      // Just do read your write checks for keys that allow overwrites.
      return;
    }

    // With a 1 in 10 probability, insert the just added key in the batch
    // into the transaction. This will create an overlap with the MultiGet
    // keys and exercise some corner cases in the code
    if (thread->rand.OneIn(10)) {
```

f63428bcc7/db_stress_tool/expected_state.h (L74-L76)

The assertion also failed if db stress compaction filter was invoked before crash recovery verification (`VerifyDB()`->`VerifyOrSyncValue()`) finishes.
f63428bcc7/db_stress_tool/db_stress_compaction_filter.h (L53)
It failed because it can encounter a key with pending state when checking for `Exists()` since that key's expected state has not been sync-ed with db state in `VerifyOrSyncValue()`.
f63428bcc7/db_stress_tool/no_batched_ops_stress.cc (L2579-L2591)

**Summary:**
This PR fixes above issues by
- not checking `Exists()` in commit phase/`SyncDelete()`
- using the concurrent version of key existence check like in other read
- conditionally temporarily disabling compaction till after crash recovery verification succeeds()

And add back the assertion `!PendingPut()&&!PendingDelete()`

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12933

Test Plan: Rehearsal CI

Reviewed By: cbi42

Differential Revision: D61214889

Pulled By: hx235

fbshipit-source-id: ef25ba896e64330ddf330182314981516880c3e4
2024-08-15 12:32:59 -07:00
Peter Dillinger 21da4ba4aa Attempt fix valgrind FP on std::optional (#12936)
Summary:
```
[ RUN      ]
BlockBasedTableReaderTest/BlockBasedTableReaderTest.MultiGet/347
==49577== Thread 4:
==49577== Conditional jump or move depends on uninitialised value(s)
==49577==    at 0x518AF93: operator!=<long unsigned int, long unsigned int> (optional:1115)
==49577==    by 0x518AF93: rocksdb::(anonymous namespace)::XXPH3FilterBitsBuilder::AddKeyAndAlt(rocksdb::Slice const&, rocksdb::Slice const&) (filter_policy.cc:100)
==49577==    by 0x5192722: Add (full_filter_block.cc:37)
==49577==    by 0x5192722: rocksdb::FullFilterBlockBuilder::Add(rocksdb::Slice const&) (full_filter_block.cc:33)
==49577==    by 0x5125DDB: rocksdb::BlockBasedTableBuilder::BGWorkWriteMaybeCompressedBlock() (block_based_table_builder.cc:1473)
==49577==    by 0x570C6B3: ??? (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.29)
==49577==    by 0x5617608: start_thread (pthread_create.c:477)
==49577==    by 0x5988132: clone (clone.S:95)
==49577==
```

Seems to be explained by ASM that valgrind doesn't like. https://stackoverflow.com/q/51616179

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12936

Test Plan: Wasn't able to reproduce locally

Reviewed By: hx235

Differential Revision: D61338401

Pulled By: pdillinger

fbshipit-source-id: b5b10f7f5c6a8c9eb088c00e5699046100167cb7
2024-08-15 10:55:29 -07:00
Jay Huh b99baa5ae7 Do not add unprep_seqs when WriteImpl() fails in unprepared txn (#12927)
Summary:
With the following scenario, we see assertion failure in write_unprepared_txn

1. The write is the first one in the transaction (`log_number_` is not set yet - https://github.com/facebook/rocksdb/blob/main/utilities/transactions/write_unprepared_txn.cc#L376-L379)
2. `WriteToWAL()` fails inside `db_impl_->WriteImpl()` due to fault injection. `last_log_number_`is 0. https://github.com/facebook/rocksdb/blob/main/utilities/transactions/write_unprepared_txn.cc#L386
3. `prepare_batch_cnt_` is still added to `unprep_seqs_` https://github.com/facebook/rocksdb/blob/main/utilities/transactions/write_unprepared_txn.cc#L395-L398
4. When the transaction gets destructed after failed, it expects `log_number_ > 0` if `unprep_seqs_` is not empty - https://github.com/facebook/rocksdb/blob/main/utilities/transactions/write_unprepared_txn.cc#L54-L55.

Step 3 is wrong. `unprep_seqs_` is for the ordered list of unprep sequence numbers that we have already written to the DB. If `db_impl_->WriteImpl()` failed, `unprep_seqs_` shouldn't be set. `prepare_seq` value would be wrong anyway.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12927

Test Plan:
Following command steadily repros the issue. This no longer fails after the fix
```
./db_stress \
  --WAL_size_limit_MB=0 \
  --WAL_ttl_seconds=60 \
  --acquire_snapshot_one_in=10000 \
  --adaptive_readahead=1 \
  --adm_policy=2 \
  --advise_random_on_open=0 \
  --allow_data_in_errors=True \
  --allow_fallocate=1 \
  --async_io=1 \
  --auto_readahead_size=0 \
  --avoid_flush_during_recovery=0 \
  --avoid_flush_during_shutdown=1 \
  --avoid_unnecessary_blocking_io=0 \
  --backup_max_size=104857600 \
  --backup_one_in=100000 \
  --batch_protection_bytes_per_key=8 \
  --bgerror_resume_retry_interval=100 \
  --block_align=1 \
  --block_protection_bytes_per_key=8 \
  --block_size=16384 \
  --bloom_before_level=7 \
  --bloom_bits=4.1280979878467345 \
  --bottommost_compression_type=none \
  --bottommost_file_compaction_delay=600 \
  --bytes_per_sync=262144 \
  --cache_index_and_filter_blocks=1 \
  --cache_index_and_filter_blocks_with_high_priority=0 \
  --cache_size=33554432 \
  --cache_type=lru_cache \
  --charge_compression_dictionary_building_buffer=1 \
  --charge_file_metadata=1 \
  --charge_filter_construction=1 \
  --charge_table_reader=1 \
  --check_multiget_consistency=0 \
  --check_multiget_entity_consistency=1 \
  --checkpoint_one_in=0 \
  --checksum_type=kXXH3 \
  --clear_column_family_one_in=0 \
  --compact_files_one_in=1000000 \
  --compact_range_one_in=1000000 \
  --compaction_pri=4 \
  --compaction_readahead_size=1048576 \
  --compaction_ttl=0 \
  --compress_format_version=1 \
  --compressed_secondary_cache_ratio=0.0 \
  --compressed_secondary_cache_size=0 \
  --compression_checksum=1 \
  --compression_max_dict_buffer_bytes=4294967295 \
  --compression_max_dict_bytes=16384 \
  --compression_parallel_threads=8 \
  --compression_type=none \
  --compression_use_zstd_dict_trainer=1 \
  --compression_zstd_max_train_bytes=0 \
  --continuous_verification_interval=0 \
  --create_timestamped_snapshot_one_in=0 \
  --daily_offpeak_time_utc=04:00-08:00 \
  --data_block_index_type=0 \
  --db=$db \
  --db_write_buffer_size=8388608 \
  --default_temperature=kHot \
  --default_write_temperature=kUnknown \
  --delete_obsolete_files_period_micros=21600000000 \
  --delpercent=5 \
  --delrangepercent=0 \
  --destroy_db_initially=0 \
  --detect_filter_construct_corruption=0 \
  --disable_file_deletions_one_in=10000 \
  --disable_manual_compaction_one_in=10000 \
  --disable_wal=0 \
  --dump_malloc_stats=1 \
  --enable_checksum_handoff=1 \
  --enable_compaction_filter=0 \
  --enable_custom_split_merge=1 \
  --enable_do_not_compress_roles=0 \
  --enable_index_compression=1 \
  --enable_memtable_insert_with_hint_prefix_extractor=0 \
  --enable_pipelined_write=0 \
  --enable_sst_partitioner_factory=0 \
  --enable_thread_tracking=1 \
  --enable_write_thread_adaptive_yield=1 \
  --error_recovery_with_no_fault_injection=1 \
  --exclude_wal_from_write_fault_injection=0 \
  --expected_values_dir=$exp \
  --fail_if_options_file_error=0 \
  --fifo_allow_compaction=1 \
  --file_checksum_impl=crc32c \
  --fill_cache=1 \
  --flush_one_in=1000 \
  --format_version=2 \
  --get_all_column_family_metadata_one_in=1000000 \
  --get_current_wal_file_one_in=0 \
  --get_live_files_apis_one_in=1000000 \
  --get_properties_of_all_tables_one_in=100000 \
  --get_property_one_in=1000000 \
  --get_sorted_wal_files_one_in=0 \
  --hard_pending_compaction_bytes_limit=274877906944 \
  --high_pri_pool_ratio=0 \
  --index_block_restart_interval=15 \
  --index_shortening=0 \
  --index_type=2 \
  --ingest_external_file_one_in=0 \
  --initial_auto_readahead_size=524288 \
  --inplace_update_support=0 \
  --iterpercent=10 \
  --key_len_percent_dist=1,30,69 \
  --key_may_exist_one_in=100000 \
  --kill_random_test=888887 \
  --last_level_temperature=kCold \
  --level_compaction_dynamic_level_bytes=1 \
  --lock_wal_one_in=1000000 \
  --log2_keys_per_lock=10 \
  --log_file_time_to_roll=0 \
  --log_readahead_size=0 \
  --long_running_snapshots=1 \
  --low_pri_pool_ratio=0 \
  --lowest_used_cache_tier=1 \
  --manifest_preallocation_size=5120 \
  --manual_wal_flush_one_in=0 \
  --mark_for_compaction_one_file_in=10 \
  --max_auto_readahead_size=0 \
  --max_background_compactions=20 \
  --max_bytes_for_level_base=10485760 \
  --max_key=100000 \
  --max_key_len=3 \
  --max_log_file_size=1048576 \
  --max_manifest_file_size=1073741824 \
  --max_sequential_skip_in_iterations=2 \
  --max_total_wal_size=0 \
  --max_write_batch_group_size_bytes=16 \
  --max_write_buffer_number=10 \
  --max_write_buffer_size_to_maintain=0 \
  --memtable_insert_hint_per_batch=0 \
  --memtable_max_range_deletions=1000 \
  --memtable_prefix_bloom_size_ratio=0.1 \
  --memtable_protection_bytes_per_key=8 \
  --memtable_whole_key_filtering=1 \
  --memtablerep=skip_list \
  --metadata_charge_policy=0 \
  --metadata_read_fault_one_in=32 \
  --metadata_write_fault_one_in=0 \
  --min_write_buffer_number_to_merge=2 \
  --mmap_read=1 \
  --mock_direct_io=False \
  --nooverwritepercent=1 \
  --num_file_reads_for_auto_readahead=2 \
  --open_files=-1 \
  --open_metadata_read_fault_one_in=0 \
  --open_metadata_write_fault_one_in=0 \
  --open_read_fault_one_in=0 \
  --open_write_fault_one_in=0 \
  --ops_per_thread=20000000 \
  --optimize_filters_for_hits=1 \
  --optimize_filters_for_memory=0 \
  --optimize_multiget_for_io=0 \
  --paranoid_file_checks=1 \
  --partition_filters=0 \
  --partition_pinning=0 \
  --pause_background_one_in=1000000 \
  --periodic_compaction_seconds=1 \
  --prefix_size=5 \
  --prefixpercent=5 \
  --prepopulate_block_cache=0 \
  --preserve_internal_time_seconds=60 \
  --progress_reports=0 \
  --promote_l0_one_in=0 \
  --read_amp_bytes_per_bit=32 \
  --read_fault_one_in=1000 \
  --readahead_size=0 \
  --readpercent=45 \
  --recycle_log_file_num=1 \
  --reopen=20 \
  --report_bg_io_stats=1 \
  --reset_stats_one_in=10000 \
  --sample_for_compression=0 \
  --secondary_cache_fault_one_in=0 \
  --sync=0 \
  --sync_fault_injection=0 \
  --table_cache_numshardbits=6 \
  --target_file_size_base=524288 \
  --target_file_size_multiplier=2 \
  --test_batches_snapshots=0 \
  --top_level_index_pinning=0 \
  --txn_write_policy=2 \
  --uncache_aggressiveness=126 \
  --universal_max_read_amp=4 \
  --unordered_write=0 \
  --unpartitioned_pinning=1 \
  --use_adaptive_mutex=0 \
  --use_adaptive_mutex_lru=1 \
  --use_attribute_group=1 \
  --use_delta_encoding=1 \
  --use_direct_io_for_flush_and_compaction=0 \
  --use_direct_reads=0 \
  --use_full_merge_v1=0 \
  --use_get_entity=0 \
  --use_merge=1 \
  --use_multi_cf_iterator=0 \
  --use_multi_get_entity=0 \
  --use_multiget=1 \
  --use_optimistic_txn=0 \
  --use_put_entity_one_in=0 \
  --use_timed_put_one_in=0 \
  --use_txn=1 \
  --use_write_buffer_manager=0 \
  --user_timestamp_size=0 \
  --value_size_mult=32 \
  --verification_only=0 \
  --verify_checksum=1 \
  --verify_checksum_one_in=1000000 \
  --verify_compression=0 \
  --verify_db_one_in=10000 \
  --verify_file_checksums_one_in=1000000 \
  --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=4194304 \
  --write_dbid_to_manifest=1 \
  --write_fault_one_in=128 \
  --writepercent=35
```

Reviewed By: cbi42

Differential Revision: D61048774

Pulled By: jaykorean

fbshipit-source-id: 22200d55fd0b22b68732b12516e681a6c6e2c601
2024-08-15 09:16:29 -07:00
Peter Dillinger f63428bcc7 Optimize, simplify filter block building (fix regression) (#12931)
Summary:
This is in part a refactoring / simplification to set up for "decoupled" partitioned filters and in part to fix an intentional regression for a correctness fix in https://github.com/facebook/rocksdb/issues/12872. Basically, we are taking out some complexity of the filter block builders, and pushing part of it (simultaneous de-duplication of prefixes and whole keys) into the filter bits builders, where it is more efficient by operating on hashes (rather than copied keys).

Previously, the FullFilterBlockBuilder had a somewhat fragile and confusing set of conditions under which it would keep a copy of the most recent prefix and most recent whole key, along with some other state that is essentially redundant. Now we just track (always) the previous prefix in the PartitionedFilterBlockBuilder, to deal with the boundary prefix Seek filtering problem. (Btw, the next PR will optimize this away since BlockBasedTableReader already tracks the previous key.) And to deal with the problem of de-duplicating both whole keys and prefixes going into a single filter, we add a new function to FilterBitsBuilder that has that extra de-duplication capabilty, which is relatively efficient because we only have to cache an extra 64-bit hash, not a copied key or prefix. (The API of this new function is somewhat awkward to avoid a small CPU regression in some cases.)

Also previously, there was awkward logic split between FullFilterBlockBuilder and PartitionedFilterBlockBuilder to deal with some things specific to partitioning. And confusing names like Add vs. AddKey. FullFilterBlockBuilder is much cleaner and simplified now.

The splitting of PartitionedFilterBlockBuilder::MaybeCutAFilterBlock into DecideCutAFilterBlock and CutAFilterBlock is to address what would have been a slight performance regression in some cases. The split allows for more intruction-level parallelism by reducing unnecessary control dependencies.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12931

Test Plan:
existing tests (with some minor updates)

Also manually ported over the pre-broken regression test described in
 https://github.com/facebook/rocksdb/issues/12870 and ran it (passed).

Performance:
Here we validate that an entire series of recent related PRs are a net improvement in aggregate. "Before" is with these PRs reverted: https://github.com/facebook/rocksdb/issues/12872 #12911 https://github.com/facebook/rocksdb/issues/12874 #12867 https://github.com/facebook/rocksdb/issues/12903 #12904. "After" includes this PR (and all
of those, with base revision 16c21af). Simultaneous test script designed to maximally depend on SST construction efficiency:

```
for PF in 0 1; do for PS in 0 8; do for WK in 0 1; do [ "$PS" == "$WK" ] || (for I in `seq 1 20`; do TEST_TMPDIR=/dev/shm/rocksdb2 ./db_bench -benchmarks=fillrandom -num=10000000 -disable_wal=1 -write_buffer_size=30000000 -memtablerep=vector -allow_concurrent_memtable_write=0 -bloom_bits=10 -compaction_style=2 -fifo_compaction_max_table_files_size_mb=10000 -fifo_compaction_allow_compaction=0 -partition_index_and_filters=$PF -prefix_size=$PS -whole_key_filtering=$WK 2>&1 | grep micros/op; done) | awk '{ t += $5; c++; print } END { print 1.0 * t / c }'; echo "Was -partition_index_and_filters=$PF -prefix_size=$PS -whole_key_filtering=$WK"; done; done; done) | tee results
```

Showing average ops/sec of "after" vs. "before"

```
-partition_index_and_filters=0 -prefix_size=0 -whole_key_filtering=1
935586 vs. 928176 (+0.79%)
-partition_index_and_filters=0 -prefix_size=8 -whole_key_filtering=0
930171 vs. 926801 (+0.36%)
-partition_index_and_filters=0 -prefix_size=8 -whole_key_filtering=1
910727 vs. 894397 (+1.8%)
-partition_index_and_filters=1 -prefix_size=0 -whole_key_filtering=1
929795 vs. 922007 (+0.84%)
-partition_index_and_filters=1 -prefix_size=8 -whole_key_filtering=0
921924 vs. 917285 (+0.51%)
-partition_index_and_filters=1 -prefix_size=8 -whole_key_filtering=1
903393 vs. 887340 (+1.8%)
```

As one would predict, the most improvement is seen in cases where we have optimized away copying the whole key.

Reviewed By: jowlyzhang

Differential Revision: D61138271

Pulled By: pdillinger

fbshipit-source-id: 427cef0b1465017b45d0a507bfa7720fa20af043
2024-08-14 15:13:16 -07:00
Yu Zhang d458331ee9 Move file tracking in VersionEditHandlerPointInTime to VersionBuilder (#12928)
Summary:
`VersionEditHandlerPointInTime` is tracking found files, missing files, intermediate files in order to decide to build a `Version` on negative edge trigger (transition from valid to invalid) without applying  the current `VersionEdit`.  However, applying `VersionEdit` and check completeness of a `Version` are specialization of `VersionBuilder`.  More importantly, when we augment best efforts recovery to recover not just complete point in time Version but also a prefix of seqno for a point in time Version, such checks need to be duplicated in `VersionEditHandlerPointInTime` and `VersionBuilder`.

To avoid this, this refactor move all the file tracking functionality in `VersionEditHandlerPointInTime` into `VersionBuilder`.  To continue to let `VersionEditHandlerPIT` do the edge trigger check and  build a `Version` before applying the current `VersionEdit`, a suite of APIs to supporting creating a save point and its associated functions are added in `VersionBuilder` to achieve this.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12928

Test Plan: Existing tests

Reviewed By: anand1976

Differential Revision: D61171320

Pulled By: jowlyzhang

fbshipit-source-id: 604f66f8b1e3a3e13da59d8ba357c74e8a366dbc
2024-08-12 21:09:37 -07:00
anand76 c21fe1a47f Add ticker stats for read corruption retries (#12923)
Summary:
Add a couple of ticker stats for corruption retry count and successful retries. This PR also eliminates an extra read attempt when there's a checksum mismatch in a block read from the prefetch buffer.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12923

Test Plan: Update existing tests

Reviewed By: jowlyzhang

Differential Revision: D61024687

Pulled By: anand1976

fbshipit-source-id: 3a08403580ab244000e0d480b7ee0f5a03d76b06
2024-08-12 15:32:07 -07:00
Hui Xiao b65e29a4a9 Loosen a strong assertion in ExpectedValue::Exists() (#12932)
Summary:
**Context/Summary:** .... since it won't work in the PrepareDelete() path

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12932

Test Plan: CI

Reviewed By: cbi42

Differential Revision: D61155155

Pulled By: hx235

fbshipit-source-id: 99b0784f6c903d70c7b3b88b53ae8e2c885de96f
2024-08-12 15:21:27 -07:00
SGZW 6727f0f58a fix compaction_picker_test asan heap use after free (#12908)
Summary:
![image](https://github.com/user-attachments/assets/3290fe18-aca2-4691-b072-fbbc96a15fb1)

this testcase set syncpoint function which reference this test case heap variable "enable_per_key_placement_" and this sync point function will be triggered by another testcase, so asan will report asan heap use after free error

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12908

Reviewed By: hx235

Differential Revision: D60973363

Pulled By: cbi42

fbshipit-source-id: df4f488f51e7741784d5a92fc0a5fc538c5d5b1a
2024-08-09 15:06:37 -07:00
SGZW 5c456c4c08 fix compaction speedup for marked files ut (#12912)
Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/12912

Reviewed By: hx235

Differential Revision: D60973460

Pulled By: cbi42

fbshipit-source-id: ebaa343757f09f7281884a512ebe3a7d6845c8b3
2024-08-09 15:05:02 -07:00
Hui Xiao 112bf15dca Fix false-positive TestBackupRestore corruption (#12917)
Summary:
**Context:**
https://github.com/facebook/rocksdb/pull/12838 allows a write thread encountered certain injected error to release the lock and sleep before retrying write in order to reduce performance cost. This requires adding checks like [this](b26b395e0a/db_stress_tool/expected_value.cc (L29-L31)) to prevent writing to the same key from another thread.

The added check causes a false-positive failure when delete range + file ingestion + backup is used. Consider the following scenario:
(1) Issue a delete range covering some key that do not exist and a key does exist (named as k1). k1 will have "pending delete" state while the keys that does not exit will have whatever state they already have since we don't delete a key that does not exist already.
(2) After https://github.com/facebook/rocksdb/pull/12838,  `PrepareDeleteRange(... &prepared)` will return `prepared = false`. So below logic will be executed and k1's "pending delete" won't get roll-backed nor committed.
```
std::vector<PendingExpectedValue> pending_expected_values =
        shared->PrepareDeleteRange(rand_column_family, rand_key,
                                   rand_key + FLAGS_range_deletion_width,
                                   &prepared);
    if (!prepared) {
      for (PendingExpectedValue& pending_expected_value :
           pending_expected_values) {
        pending_expected_value.PermitUnclosedPendingState();
      }
      return s;
    }
```
(3) Issue an file ingestion covering k1 and another key k2. Similar to (2), we will have  `shared->PreparePut(column_family, key, &prepared)` return `prepared = false` for k1 while k2 will have a "pending put" state. So below logic will be executed and k2's "pending put" state won't get roll-backed nor committed.
```
for (int64_t key = key_base;
         s.ok() && key < shared->GetMaxKey() &&
         static_cast<int32_t>(keys.size()) < FLAGS_ingest_external_file_width;
         ++key)
      PendingExpectedValue pending_expected_value =
                shared->PreparePut(column_family, key, &prepared);
            if (!prepared) {
              pending_expected_value.PermitUnclosedPendingState();
              for (PendingExpectedValue& pev : pending_expected_values) {
                pev.PermitUnclosedPendingState();
              }
              return;
            }
}
```
(4) Issue a backup and verify on k2. Below logic decides that k2 should exist in restored DB since it has a pending write state while k2 is never ingested into the original DB as (3) returns early.
```
bool Exists() const { return PendingPut() || !IsDeleted(); }

TestBackupRestore() {
...
Status get_status = restored_db->Get(
        read_opts, restored_cf_handles[rand_column_families[i]], key,
        &restored_value);
    bool exists = thread->shared->Exists(rand_column_families[i], rand_keys[0]);
    if (get_status.ok()) {
      if (!exists && from_latest && ShouldAcquireMutexOnKey()) {
        std::ostringstream oss;
        oss << "0x" << key.ToString(true)
            << " exists in restore but not in original db";
        s = Status::Corruption(oss.str());
      }
    } else if (get_status.IsNotFound()) {
      if (exists && from_latest && ShouldAcquireMutexOnKey()) {
        std::ostringstream oss;
        oss << "0x" << key.ToString(true)
            << " exists in original db but not in restore";
        s = Status::Corruption(oss.str());
      }
    }
   ...
}
```
So we see false-positive corruption like `Failure in a backup/restore operation with: Corruption: 0x000000000000017B0000000000000073787878 exists in original db but not in restore`

A simple fix is to remove `PendingPut()` from `bool Exists() ` since it's called under a lock and should never see a pending write. However, in order for "under a lock and should never see a pending write" to be true, we need to remove the logic of releasing the lock during sleep in the write thread, which expose pending write to other thread that can call Exists() like back up thread.

The downside of holding lock during sleep is blocking other write thread of the same key to proceed cuz they need to wait for the lock. This should happen rarely as the key of a thread is selected randomly in crash test like below.

```
void StressTest::OperateDb(ThreadState* thread) {
   for (uint64_t i = 0; i < ops_per_open; i++) {
     ...
     int64_t rand_key = GenerateOneKey(thread, i);
     ...
   }
}
```

**Summary:**
- Removed the "lock release" part and related checks
- Printed recovery time if the write thread waited more than 10 seconds
- Reverted regression in testing coverage when deleting a non-existent key

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12917

Test Plan:
Below command repro-ed frequently before the fix and not after.
```

./db_stress --WAL_size_limit_MB=1 --WAL_ttl_seconds=60 --acquire_snapshot_one_in=0 --adaptive_readahead=0 --adm_policy=1 --advise_random_on_open=1 --allow_concurrent_memtable_write=0 --allow_data_in_errors=True --allow_fallocate=0 --allow_setting_blob_options_dynamically=1 --async_io=0 --auto_readahead_size=1 --avoid_flush_during_recovery=0 --avoid_flush_during_shutdown=0 --avoid_unnecessary_blocking_io=0 --backup_max_size=104857600 --backup_one_in=100000 --batch_protection_bytes_per_key=0 --bgerror_resume_retry_interval=100 --blob_cache_size=8388608 --blob_compaction_readahead_size=1048576 --blob_compression_type=none --blob_file_size=1073741824 --blob_file_starting_level=1 --blob_garbage_collection_age_cutoff=0.0 --blob_garbage_collection_force_threshold=0.75 --block_align=0 --block_protection_bytes_per_key=8 --block_size=16384 --bloom_before_level=2147483647 --bloom_bits=16.216959977115277 --bottommost_compression_type=xpress --bottommost_file_compaction_delay=600 --bytes_per_sync=262144 --cache_index_and_filter_blocks=1 --cache_index_and_filter_blocks_with_high_priority=1 --cache_size=8388608 --cache_type=lru_cache --charge_compression_dictionary_building_buffer=1 --charge_file_metadata=0 --charge_filter_construction=0 --charge_table_reader=1 --check_multiget_consistency=0 --check_multiget_entity_consistency=0 --checkpoint_one_in=1000000 --checksum_type=kXXH3 --clear_column_family_one_in=0 --column_families=1 --compact_files_one_in=1000 --compact_range_one_in=0 --compaction_pri=3 --compaction_readahead_size=0 --compaction_ttl=10 --compress_format_version=2 --compressed_secondary_cache_size=8388608 --compression_checksum=0 --compression_max_dict_buffer_bytes=2097151 --compression_max_dict_bytes=16384 --compression_parallel_threads=1 --compression_type=zlib --compression_use_zstd_dict_trainer=0 --compression_zstd_max_train_bytes=0 --continuous_verification_interval=0 --daily_offpeak_time_utc=04:00-08:00 --data_block_index_type=0 --db=/dev/shm/rocksdb_test/rocksdb_crashtest_whitebox --db_write_buffer_size=0 --default_temperature=kUnknown --default_write_temperature=kWarm --delete_obsolete_files_period_micros=21600000000 --delpercent=0 --delrangepercent=5 --destroy_db_initially=0 --detect_filter_construct_corruption=1 --disable_file_deletions_one_in=10000 --disable_manual_compaction_one_in=1000000 --disable_wal=0 --dump_malloc_stats=0 --enable_blob_files=0 --enable_blob_garbage_collection=1 --enable_checksum_handoff=1 --enable_compaction_filter=1 --enable_custom_split_merge=1 --enable_do_not_compress_roles=0 --enable_index_compression=1 --enable_memtable_insert_with_hint_prefix_extractor=0 --enable_pipelined_write=1 --enable_sst_partitioner_factory=1 --enable_thread_tracking=0 --enable_write_thread_adaptive_yield=0 --error_recovery_with_no_fault_injection=1 --exclude_wal_from_write_fault_injection=1 --expected_values_dir=/dev/shm/rocksdb_test/rocksdb_crashtest_expected --fail_if_options_file_error=0 --fifo_allow_compaction=1 --file_checksum_impl=big --fill_cache=1 --flush_one_in=1000000 --format_version=2 --get_all_column_family_metadata_one_in=10000 --get_current_wal_file_one_in=0 --get_live_files_apis_one_in=1000000 --get_properties_of_all_tables_one_in=100000 --get_property_one_in=100000 --get_sorted_wal_files_one_in=0 --hard_pending_compaction_bytes_limit=2097152 --high_pri_pool_ratio=0.5 --index_block_restart_interval=1 --index_shortening=2 --index_type=0 --ingest_external_file_one_in=1000 --initial_auto_readahead_size=0 --inplace_update_support=0 --iterpercent=0 --key_len_percent_dist=1,30,69 --key_may_exist_one_in=100 --last_level_temperature=kUnknown --level_compaction_dynamic_level_bytes=0 --lock_wal_one_in=10000 --log2_keys_per_lock=10 --log_file_time_to_roll=0 --log_readahead_size=0 --long_running_snapshots=1 --low_pri_pool_ratio=0.5 --lowest_used_cache_tier=1 --manifest_preallocation_size=0 --manual_wal_flush_one_in=0 --mark_for_compaction_one_file_in=10 --max_auto_readahead_size=16384 --max_background_compactions=1 --max_bytes_for_level_base=67108864 --max_key=100000 --max_key_len=3 --max_log_file_size=1048576 --max_manifest_file_size=1073741824 --max_sequential_skip_in_iterations=16 --max_total_wal_size=0 --max_write_batch_group_size_bytes=16 --max_write_buffer_number=10 --max_write_buffer_size_to_maintain=8388608 --memtable_insert_hint_per_batch=1 --memtable_max_range_deletions=1000 --memtable_prefix_bloom_size_ratio=0.001 --memtable_protection_bytes_per_key=4 --memtable_whole_key_filtering=1 --memtablerep=skip_list --metadata_charge_policy=1 --metadata_read_fault_one_in=0 --metadata_write_fault_one_in=0 --min_blob_size=16 --min_write_buffer_number_to_merge=2 --mmap_read=0 --mock_direct_io=False --nooverwritepercent=1 --num_file_reads_for_auto_readahead=0 --open_files=-1 --open_metadata_read_fault_one_in=0 --open_metadata_write_fault_one_in=0 --open_read_fault_one_in=0 --open_write_fault_one_in=0 --ops_per_thread=20000000 --optimize_filters_for_hits=1 --optimize_filters_for_memory=0 --optimize_multiget_for_io=1 --paranoid_file_checks=1 --partition_filters=0 --partition_pinning=1 --pause_background_one_in=10000 --periodic_compaction_seconds=10 --prefix_size=8 --prefixpercent=0 --prepopulate_blob_cache=1 --prepopulate_block_cache=1 --preserve_internal_time_seconds=0 --progress_reports=0 --promote_l0_one_in=0 --read_amp_bytes_per_bit=0 --read_fault_one_in=0 --readahead_size=524288 --readpercent=60 --recycle_log_file_num=1 --reopen=20 --report_bg_io_stats=0 --reset_stats_one_in=1000000 --sample_for_compression=5 --secondary_cache_fault_one_in=0 --secondary_cache_uri= --skip_stats_update_on_db_open=1 --snapshot_hold_ops=100000 --soft_pending_compaction_bytes_limit=68719476736 --sqfc_name=foo --sqfc_version=1 --sst_file_manager_bytes_per_sec=0 --sst_file_manager_bytes_per_truncate=0 --stats_dump_period_sec=10 --stats_history_buffer_size=1048576 --strict_bytes_per_sync=1 --subcompactions=2 --sync=0 --sync_fault_injection=0 --table_cache_numshardbits=0 --target_file_size_base=16777216 --target_file_size_multiplier=1 --test_batches_snapshots=0 --top_level_index_pinning=3 --uncache_aggressiveness=118 --universal_max_read_amp=-1 --unpartitioned_pinning=0 --use_adaptive_mutex=0 --use_adaptive_mutex_lru=1 --use_attribute_group=0 --use_blob_cache=0 --use_delta_encoding=1 --use_direct_io_for_flush_and_compaction=0 --use_direct_reads=0 --use_full_merge_v1=0 --use_get_entity=0 --use_merge=0 --use_multi_cf_iterator=0 --use_multi_get_entity=0 --use_multiget=1 --use_put_entity_one_in=0 --use_shared_block_and_blob_cache=1 --use_sqfc_for_range_queries=1 --use_timed_put_one_in=0 --use_write_buffer_manager=0 --user_timestamp_size=0 --value_size_mult=32 --verification_only=0 --verify_checksum=1 --verify_checksum_one_in=1000000 --verify_compression=0 --verify_db_one_in=10000 --verify_file_checksums_one_in=1000000 --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=0 --write_fault_one_in=0 --writepercent=35
```

Reviewed By: cbi42

Differential Revision: D60890580

Pulled By: hx235

fbshipit-source-id: 401f90d6d351c7ee11088cad06fb00e54062d416
2024-08-09 14:51:36 -07:00
Hui Xiao 16c21afc06 Fix failure to clean the temporary directory due to NotFound in crash test checkpoint creation (#12919)
Summary:
**Context/Summary:**
b26b395e0a propagates `CleanStagingDirectory()` status to `CreateCheckpoint()`.  However, we didn't return early when `Status s = db_->GetEnv()->FileExists(full_private_path);` return non-NotFound non-ok stratus in `CleanStagingDirectory()`. Therefore we can proceed to the next step when `full_private_path` doesn't exist.
```
Verification failed: Checkpoint failed: Operation aborted: Failed to clean the temporary directory /dev/shm/rocksdb.J4Su/rocksdb_crashtest_blackbox/.checkpoint28.tmp needed before checkpoint creation : NotFound:

db_stress: db_stress_tool/db_stress_test_base.cc:549: void rocksdb::StressTest::ProcessStatus(rocksdb::SharedState*, std::string, const rocksdb::Status&, bool) const: Assertion `false' failed.
```

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12919

Test Plan:
Below failed before the fix and passes after

```
./db_stress --WAL_size_limit_MB=1 --WAL_ttl_seconds=0 --acquire_snapshot_one_in=100 --adaptive_readahead=1 --adm_policy=1 --advise_random_on_open=0 --allow_data_in_errors=True --allow_fallocate=1 --async_io=1 --auto_readahead_size=0 --avoid_flush_during_recovery=1 --avoid_flush_during_shutdown=0 --avoid_unnecessary_blocking_io=1 --backup_max_size=104857600 --backup_one_in=100000 --batch_protection_bytes_per_key=8 --bgerror_resume_retry_interval=1000000 --block_align=0 --block_protection_bytes_per_key=4 --block_size=16384 --bloom_before_level=2 --bloom_bits=4 --bottommost_compression_type=snappy --bottommost_file_compaction_delay=0 --bytes_per_sync=0 --cache_index_and_filter_blocks=1 --cache_index_and_filter_blocks_with_high_priority=0 --cache_size=8388608 --cache_type=auto_hyper_clock_cache --charge_compression_dictionary_building_buffer=0 --charge_file_metadata=1 --charge_filter_construction=1 --charge_table_reader=1 --check_multiget_consistency=0 --check_multiget_entity_consistency=0 --checkpoint_one_in=10000 --checksum_type=kxxHash64 --clear_column_family_one_in=0 --compact_files_one_in=1000 --compact_range_one_in=1000000 --compaction_pri=3 --compaction_readahead_size=1048576 --compaction_ttl=0 --compress_format_version=2 --compressed_secondary_cache_ratio=0.0 --compressed_secondary_cache_size=0 --compression_checksum=0 --compression_max_dict_buffer_bytes=0 --compression_max_dict_bytes=0 --compression_parallel_threads=1 --compression_type=none --compression_use_zstd_dict_trainer=0 --compression_zstd_max_train_bytes=0 --continuous_verification_interval=0 --daily_offpeak_time_utc= --data_block_index_type=0 --db=/dev/shm/rocksdb.J4Su/rocksdb_crashtest_blackbox --db_write_buffer_size=134217728 --default_temperature=kUnknown --default_write_temperature=kHot --delete_obsolete_files_period_micros=21600000000 --delpercent=4 --delrangepercent=1 --destroy_db_initially=0 --detect_filter_construct_corruption=0 --disable_file_deletions_one_in=1000000 --disable_manual_compaction_one_in=10000 --disable_wal=0 --dump_malloc_stats=0 --enable_checksum_handoff=0 --enable_compaction_filter=0 --enable_custom_split_merge=0 --enable_do_not_compress_roles=1 --enable_index_compression=1 --enable_memtable_insert_with_hint_prefix_extractor=0 --enable_pipelined_write=0 --enable_sst_partitioner_factory=0 --enable_thread_tracking=0 --enable_write_thread_adaptive_yield=1 --error_recovery_with_no_fault_injection=1 --exclude_wal_from_write_fault_injection=0 --expected_values_dir=/dev/shm/rocksdb.J4Su/rocksdb_crashtest_expected --fail_if_options_file_error=1 --fifo_allow_compaction=1 --file_checksum_impl=xxh64 --fill_cache=1 --flush_one_in=1000000 --format_version=6 --get_all_column_family_metadata_one_in=1000000 --get_current_wal_file_one_in=0 --get_live_files_apis_one_in=1000000 --get_properties_of_all_tables_one_in=1000000 --get_property_one_in=1000000 --get_sorted_wal_files_one_in=0 --hard_pending_compaction_bytes_limit=274877906944 --high_pri_pool_ratio=0.5 --index_block_restart_interval=13 --index_shortening=0 --index_type=3 --ingest_external_file_one_in=0 --initial_auto_readahead_size=16384 --inplace_update_support=0 --iterpercent=10 --key_len_percent_dist=1,30,69 --key_may_exist_one_in=100000 --last_level_temperature=kWarm --level_compaction_dynamic_level_bytes=1 --lock_wal_one_in=1000000 --log_file_time_to_roll=0 --log_readahead_size=0 --long_running_snapshots=0 --low_pri_pool_ratio=0 --lowest_used_cache_tier=0 --manifest_preallocation_size=5120 --manual_wal_flush_one_in=1000 --mark_for_compaction_one_file_in=10 --max_auto_readahead_size=16384 --max_background_compactions=20 --max_bytes_for_level_base=10485760 --max_key=2500000 --max_key_len=3 --max_log_file_size=0 --max_manifest_file_size=1073741824 --max_sequential_skip_in_iterations=8 --max_total_wal_size=0 --max_write_batch_group_size_bytes=16 --max_write_buffer_number=10 --max_write_buffer_size_to_maintain=0 --memtable_insert_hint_per_batch=0 --memtable_max_range_deletions=100 --memtable_prefix_bloom_size_ratio=0.1 --memtable_protection_bytes_per_key=4 --memtable_whole_key_filtering=0 --memtablerep=skip_list --metadata_charge_policy=1 --metadata_read_fault_one_in=32 --metadata_write_fault_one_in=128 --min_write_buffer_number_to_merge=2 --mmap_read=1 --mock_direct_io=False --nooverwritepercent=1 --num_file_reads_for_auto_readahead=2 --open_files=500000 --open_metadata_read_fault_one_in=8 --open_metadata_write_fault_one_in=0 --open_read_fault_one_in=0 --open_write_fault_one_in=16 --ops_per_thread=100000000 --optimize_filters_for_hits=0 --optimize_filters_for_memory=1 --optimize_multiget_for_io=0 --paranoid_file_checks=1 --partition_filters=0 --partition_pinning=0 --pause_background_one_in=10000 --periodic_compaction_seconds=0 --prefix_size=7 --prefixpercent=5 --prepopulate_block_cache=1 --preserve_internal_time_seconds=36000 --progress_reports=0 --promote_l0_one_in=0 --read_amp_bytes_per_bit=0 --read_fault_one_in=0 --readahead_size=0 --readpercent=45 --recycle_log_file_num=1 --reopen=0 --report_bg_io_stats=0 --reset_stats_one_in=10000 --sample_for_compression=5 --secondary_cache_fault_one_in=32 --set_options_one_in=10000 --skip_stats_update_on_db_open=1 --snapshot_hold_ops=100000 --soft_pending_compaction_bytes_limit=68719476736 --sqfc_name=foo --sqfc_version=0 --sst_file_manager_bytes_per_sec=104857600 --sst_file_manager_bytes_per_truncate=0 --stats_dump_period_sec=600 --stats_history_buffer_size=1048576 --strict_bytes_per_sync=1 --subcompactions=3 --sync=0 --sync_fault_injection=0 --table_cache_numshardbits=6 --target_file_size_base=524288 --target_file_size_multiplier=2 --test_batches_snapshots=0 --test_cf_consistency=1 --top_level_index_pinning=1 --uncache_aggressiveness=0 --universal_max_read_amp=0 --unpartitioned_pinning=0 --use_adaptive_mutex=0 --use_adaptive_mutex_lru=1 --use_attribute_group=0 --use_delta_encoding=1 --use_direct_io_for_flush_and_compaction=0 --use_direct_reads=0 --use_full_merge_v1=0 --use_get_entity=1 --use_merge=0 --use_multi_cf_iterator=0 --use_multi_get_entity=0 --use_multiget=0 --use_put_entity_one_in=0 --use_sqfc_for_range_queries=1 --use_timed_put_one_in=1 --use_write_buffer_manager=1 --user_timestamp_size=0 --value_size_mult=32 --verification_only=0 --verify_checksum=1 --verify_checksum_one_in=1000 --verify_compression=1 --verify_db_one_in=100000 --verify_file_checksums_one_in=1000 --verify_iterator_with_expected_state_one_in=0 --verify_sst_unique_id_in_manifest=1 --wal_bytes_per_sync=0 --wal_compression=none --write_buffer_size=1048576 --write_dbid_to_manifest=0 --write_fault_one_in=128 --writepercent=35
```

Reviewed By: cbi42

Differential Revision: D60938952

Pulled By: hx235

fbshipit-source-id: 5696cd6b00f33c9f9a256944fecb4e2f4d52a2e6
2024-08-08 15:37:19 -07:00
Changyu Bi b32d899482 Fix MultiGet dropping memtable kv checksum corruption (#12842)
Summary:
Corruption status returned by `GetFromTable()` could be overwritten here: b6c3495a71/db/version_set.cc (L2614)

This PR fixes this issue by setting `*(s->found_final_value) = true;` in SaveValue. Also makes the handling of the return value of `GetFromTable()` more robust and added asserts in a couple places.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12842

Test Plan: Updated an existing unit test to cover MultiGet. It fails the assertion here before this PR: b6c3495a71/db/version_set.cc (L2601)

Reviewed By: anand1976

Differential Revision: D59498203

Pulled By: cbi42

fbshipit-source-id: 1f071c1b2c5b66fb71264b547a9e670d1cf592f0
2024-08-08 13:34:11 -07:00
Peter Dillinger d33d25f903 Disable WAL recycling in crash test; reproducer for recovery data loss (#12918)
Summary:
I was investigating a crash test failure with "Corruption: SST file is ahead of WALs" which I haven't reproduced, but I did reproduce a data loss issue on recovery which I suspect could be the same root problem. The problem is already somewhat known (see https://github.com/facebook/rocksdb/issues/12403 and https://github.com/facebook/rocksdb/issues/12639) where it's only safe to recovery multiple recycled WAL files with trailing old data if the sequence numbers between them are adjacent (to ensure we didn't lose anything in the corrupt/obsolete WAL tail).

However, aside from disableWAL=true, there are features like external file ingestion that can increment the sequence numbers without writing to the WAL. It is simply unsustainable to worry about this kind of feature interaction limiting where we can consume sequence numbers. It is very hard to test and audit as well. For reliable crash recovery of recycled WALs, we need a better way of detecting that we didn't drop data from one WAL to the next.

Until then, let's disable WAL recycling in the crash test, to help stabilize it.

Ideas for follow-up to fix the underlying problem:
(a) With recycling, we could always sync the WAL before opening the next one. HOWEVER, this potentially very large sync could cause a big hiccup in writes (vs. O(1) sized manifest sync).
(a1) The WAL sync could ensure it is truncated to size, or
(a2) By requiring track_and_verify_wals_in_manifest, we could assume that the last synced size in the manifest is the final usable size of the WAL. (It might also be worth avoiding truncating recycled WALs.)
(b) Add a new mechanism to record and verify the final size of a WAL without requiring a sync.
(b1) By requiring track_and_verify_wals_in_manifest, this could be new WAL metadata recorded in the manifest (at the time of switching WALs). Note that new fields of WalMetadata are not forward-compatible, but a new kind of manifest record (next to WalAddition, WalDeletion; e.g. WalCompletion) is IIRC forward-compatible.
(b2) A new kind of WAL header entry (not forward compatible, unfortunately) could record the final size of the previous WAL.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12918

Test Plan: Added disabled reproducer for non-linear data loss on recovery

Reviewed By: hx235

Differential Revision: D60917527

Pulled By: pdillinger

fbshipit-source-id: 3663d79aec81851f5cf41669f84a712bb4563fd7
2024-08-07 14:20:45 -07:00
Peter Dillinger b15f8c7f0e Refactor db_bloom_filter_test (#12911)
Summary:
Ahead of a "decoupled" variant of partitioned filters, refactoring this unit test file to make it easier to incorporate that new variant.
* bool test param to new enum class FilterPartitioning
* Some cases of iterating over that bool to new parameterized test
* Combine some common functionality for configuring parameterized options

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12911

Test Plan: no production changes, and no intentional changes to scope or conditions of tests

Differential Revision: D60701287

fbshipit-source-id: 3497e3230e29a4f62c934bcb75693965a2df41d8
2024-08-07 11:28:16 -07:00
Hui Xiao b26b395e0a Fix CreateCheckpoint not handling failed CleanStagingDirectory well (#12894)
Summary:
**Context/Summary:**

`CleanStagingDirectory()` is called when the temporary .tmp folder we use to create checkpoint is not empty to begin with.

Expanded fault injection can make this call fail e.g, `Delete file /dev/shm/rocksdb_test/rocksdb_crashtest_blackbox/.checkpoint17.tmp/012393.sst -- IO error: injected metadata write error`.

But The result of `CleanStagingDirectory()` is ignored in `CreateCheckpoint()`. So the injected IO error can't be propagated to db stress test and handled correctly. Hence we see `While mkdir: /dev/shm/rocksdb_test/rocksdb_crashtest_blackbox/.checkpoint17.tmp: File exists` when we try to re-use a non-empty .tmp folder for new snapshots.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12894

Test Plan: Monitor CI

Reviewed By: ltamasi

Differential Revision: D60422849

Pulled By: hx235

fbshipit-source-id: 6f735c98eaa05d2b97ba4f781e0928357a50377a
2024-08-06 11:24:29 -07:00
Yu Zhang 719c96125c Add a TransactionOptions to enable tracking timestamp size info inside WriteBatch (#12864)
Summary:
In normal use cases, meta info like column family's timestamp size is tracked at the transaction layer, so it's not necessary and even detrimental to track such info inside the internal WriteBatch because it may let anti-patterns like bypassing Transaction write APIs and directly write to its internal WriteBatch like this:
9d0a754dc9/storage/rocksdb/ha_rocksdb.cc (L4949-L4950)
Setting this option to true will keep aforementioned use case continue to work before it's refactored out. This option is only for this purpose and it will be gradually deprecated after aforementioned MyRocks use case are refactored.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12864

Test Plan: Added unit tests

Reviewed By: cbi42

Differential Revision: D60194094

Pulled By: jowlyzhang

fbshipit-source-id: 64a98822167e99aa7e4fa2a60085d44a5deaa45c
2024-08-05 13:06:45 -07:00
Yu Zhang 36b061a6c7 Fix test breakage (#12915)
Summary:
https://github.com/facebook/rocksdb/issues/12891  updated this deletion rate in the test to be much higher, which makes the test flaky. The rate is being intentionally set to very low to maximize the retention of a ".log.trash" file after DB closes. This PR just change it back.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12915

Reviewed By: ltamasi

Differential Revision: D60776312

Pulled By: jowlyzhang

fbshipit-source-id: d193557a042c65816fcc337cceb09905e042e9f6
2024-08-05 12:26:18 -07:00
Yu Zhang d12aaf23ca Fix file deletions in DestroyDB not rate limited (#12891)
Summary:
Make `DestroyDB` slowly delete files if it's configured and enabled via `SstFileManager`.

It's currently not available mainly because of DeleteScheduler's logic related to tracked total_size_ and total_trash_size_. These accounting and logic should not be applied to `DestroyDB`. This PR adds a `DeleteUnaccountedDBFile` util for this purpose which deletes files without accounting it.  This util also supports assigning a file to a specified trash bucket so that user can later wait for a specific trash bucket to be empty. For `DestroyDB`, files with more than 1 hard links will be deleted immediately.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12891

Test Plan: Added unit tests, existing tests.

Reviewed By: anand1976

Differential Revision: D60300220

Pulled By: jowlyzhang

fbshipit-source-id: 8b18109a177a3a9532f6dc2e40e08310c08ca3c7
2024-08-02 19:31:55 -07:00
Peter Dillinger 9d5c8c89a1 Fix filter partition size logic (#12904)
Summary:
Was checking == a desired number of entries added to a filter, when the combination of whole key and prefix filtering could add more than one entry per table internal key. This could lead to unnecessarily large filter partitions, which could affect performance and block cache fairness.

Also (only somewhat related because of other work in progress):
* Some variable renaming and a new assertion in BlockBasedTableBuilder, to add some clarity.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12904

Test Plan:
If you add assertion logic to the base revision checking that the partition cut is requested whenever `keys_added_to_partition_ >= keys_per_partition_`, it fails on a number of db_bloom_filter_test tests. However, such an assertion in the revised code would be essentially redundant with the new logic.

If I added a regression test for this, it would be tricky and fragile, so I don't think it's important enough to chase and maintain.  (Open to suggestions / input.)

Reviewed By: jowlyzhang

Differential Revision: D60557827

Pulled By: pdillinger

fbshipit-source-id: 77a56097d540da6e7851941a26d26ced2d944373
2024-08-02 14:49:02 -07:00
Levi Tamasi 2e8a1a14ef Fix a data race affecting the background error status (#12910)
Summary:
Pull Request resolved: https://github.com/facebook/rocksdb/pull/12910

There is currently a call to `GetBGError()` in `DBImpl::WriteImplWALOnly()` where the DB mutex is (incorrectly) not held, leading to a data race. Technically, we could acquire the mutex here but instead, the patch removes the affected check altogether, since the same check is already performed (in a thread-safe manner) in the subsequent call to `PreprocessWrite()`.

Reviewed By: cbi42

Differential Revision: D60682008

fbshipit-source-id: 54b67975dcf57d67c068cac71e8ada09a1793ec5
2024-08-02 14:11:08 -07:00
Peter Dillinger 9245550e8b Clean up/refactor (Partitioned)FilterBlockBuilder (#12903)
Summary:
This is ahead of some related changes/enhancements. Refactorings here:
* Restructure some state of PartitionedFilterBlockBuilder to reduce redundancy in state tracking, improve clarity.
* Changed some function signatures to better match standard practice (return Status)
* Improve comments, arrange related fields
* Discourage/prevent production use of Finish without status (now TEST_Finish)

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12903

Test Plan: existing tests

Reviewed By: jowlyzhang

Differential Revision: D60548613

Pulled By: pdillinger

fbshipit-source-id: d7dbc79951fcc3b837877227d58f713698ad2596
2024-08-02 13:35:45 -07:00
Hui Xiao 5e203c76a2 SyncWAL() before Close() when FLAGS_avoid_flush_during_shutdown=true in crash test (#12900)
Summary:
**Context/Summary:**
When we use WAL and don't flush data during shutdown `FLAGS_avoid_flush_during_shutdown=true`, then we rely on WAL to recover data in next Open() so will need to sync WAL in crash test. Currently the condition is flipped.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12900

Test Plan:
Below fails with data loss `Verification failed. Expected state has key 000000000000015D000000000000012B0000000000000147, iterator is at key 000000000000015D000000000000012B0000000000000152` before the fix but not after the fix
```
./db_stress --WAL_size_limit_MB=0 --WAL_ttl_seconds=0 --acquire_snapshot_one_in=10000 --adaptive_readahead=1 --adm_policy=3 --advise_random_on_open=1 --allow_concurrent_memtable_write=0 --allow_data_in_errors=True --allow_fallocate=1 --async_io=1 --auto_readahead_size=1 --avoid_flush_during_recovery=0 --avoid_flush_during_shutdown=1 --avoid_unnecessary_blocking_io=0 --backup_max_size=104857600 --backup_one_in=1000 --batch_protection_bytes_per_key=8 --bgerror_resume_retry_interval=100 --block_align=0 --block_protection_bytes_per_key=4 --block_size=16384 --bloom_before_level=0 --bloom_bits=10 --bottommost_compression_type=disable --bottommost_file_compaction_delay=3600 --bytes_per_sync=262144 --cache_index_and_filter_blocks=1 --cache_index_and_filter_blocks_with_high_priority=0 --cache_size=33554432 --cache_type=tiered_auto_hyper_clock_cache --charge_compression_dictionary_building_buffer=1 --charge_file_metadata=0 --charge_filter_construction=0 --charge_table_reader=0 --check_multiget_consistency=0 --check_multiget_entity_consistency=0 --checkpoint_one_in=1000000 --checksum_type=kxxHash64 --clear_column_family_one_in=0 --column_families=1 --compact_files_one_in=1000000 --compact_range_one_in=1000000 --compaction_pri=3 --compaction_readahead_size=0 --compaction_style=1 --compaction_ttl=0 --compress_format_version=1 --compressed_secondary_cache_ratio=0.3333333333333333 --compressed_secondary_cache_size=0 --compression_checksum=1 --compression_max_dict_buffer_bytes=0 --compression_max_dict_bytes=0 --compression_parallel_threads=8 --compression_type=zlib --compression_use_zstd_dict_trainer=0 --compression_zstd_max_train_bytes=0 --continuous_verification_interval=0 --daily_offpeak_time_utc= --data_block_index_type=1 --db=/dev/shm/rocksdb_test/rocksdb_crashtest_whitebox_2 --db_write_buffer_size=0 --default_temperature=kUnknown --default_write_temperature=kWarm --delete_obsolete_files_period_micros=30000000 --delpercent=4 --delrangepercent=1 --destroy_db_initially=1 --detect_filter_construct_corruption=0 --disable_file_deletions_one_in=1000000 --disable_manual_compaction_one_in=10000 --disable_wal=0 --dump_malloc_stats=0 --enable_checksum_handoff=0 --enable_compaction_filter=0 --enable_custom_split_merge=0 --enable_do_not_compress_roles=0 --enable_index_compression=1 --enable_memtable_insert_with_hint_prefix_extractor=0 --enable_pipelined_write=0 --enable_sst_partitioner_factory=0 --enable_thread_tracking=1 --enable_write_thread_adaptive_yield=1 --error_recovery_with_no_fault_injection=0 --exclude_wal_from_write_fault_injection=1 --expected_values_dir=/dev/shm/rocksdb_test/rocksdb_crashtest_expected_2 --fail_if_options_file_error=1 --fifo_allow_compaction=1 --file_checksum_impl=none --fill_cache=0 --flush_one_in=1000000 --format_version=5 --get_all_column_family_metadata_one_in=1000000 --get_current_wal_file_one_in=0 --get_live_files_apis_one_in=10000 --get_properties_of_all_tables_one_in=100000 --get_property_one_in=1000000 --get_sorted_wal_files_one_in=0 --hard_pending_compaction_bytes_limit=274877906944 --high_pri_pool_ratio=0.5 --index_block_restart_interval=13 --index_shortening=1 --index_type=2 --ingest_external_file_one_in=0 --initial_auto_readahead_size=524288 --inplace_update_support=0 --iterpercent=10 --key_len_percent_dist=1,30,69 --key_may_exist_one_in=100000 --last_level_temperature=kHot --level_compaction_dynamic_level_bytes=0 --lock_wal_one_in=10000 --log2_keys_per_lock=10 --log_file_time_to_roll=60 --log_readahead_size=16777216 --long_running_snapshots=0 --low_pri_pool_ratio=0.5 --lowest_used_cache_tier=0 --manifest_preallocation_size=0 --manual_wal_flush_one_in=0 --mark_for_compaction_one_file_in=0 --max_auto_readahead_size=0 --max_background_compactions=1 --max_bytes_for_level_base=67108864 --max_key=100000 --max_key_len=3 --max_log_file_size=1048576 --max_manifest_file_size=1073741824 --max_sequential_skip_in_iterations=16 --max_total_wal_size=0 --max_write_batch_group_size_bytes=16 --max_write_buffer_number=3 --max_write_buffer_size_to_maintain=8388608 --memtable_insert_hint_per_batch=0 --memtable_max_range_deletions=0 --memtable_prefix_bloom_size_ratio=0.01 --memtable_protection_bytes_per_key=4 --memtable_whole_key_filtering=1 --memtablerep=skip_list --metadata_charge_policy=1 --metadata_read_fault_one_in=0 --metadata_write_fault_one_in=0 --min_write_buffer_number_to_merge=1 --mmap_read=0 --mock_direct_io=True --nooverwritepercent=1 --num_file_reads_for_auto_readahead=2 --open_files=100 --open_metadata_read_fault_one_in=0 --open_metadata_write_fault_one_in=8 --open_read_fault_one_in=0 --open_write_fault_one_in=0 --ops_per_thread=200000 --optimize_filters_for_hits=1 --optimize_filters_for_memory=1 --optimize_multiget_for_io=0 --paranoid_file_checks=0 --partition_filters=0 --partition_pinning=1 --pause_background_one_in=1000000 --periodic_compaction_seconds=0 --prefix_size=1 --prefixpercent=5 --prepopulate_block_cache=0 --preserve_internal_time_seconds=0 --progress_reports=0 --promote_l0_one_in=0 --read_amp_bytes_per_bit=0 --read_fault_one_in=0 --readahead_size=16384 --readpercent=45 --recycle_log_file_num=1 --reopen=20 --report_bg_io_stats=1 --reset_stats_one_in=1000000 --sample_for_compression=0 --secondary_cache_fault_one_in=32 --secondary_cache_uri= --skip_stats_update_on_db_open=1 --snapshot_hold_ops=100000 --soft_pending_compaction_bytes_limit=68719476736 --sqfc_name=foo --sqfc_version=2 --sst_file_manager_bytes_per_sec=104857600 --sst_file_manager_bytes_per_truncate=0 --stats_dump_period_sec=0 --stats_history_buffer_size=0 --strict_bytes_per_sync=1 --subcompactions=3 --sync=0 --sync_fault_injection=1 --table_cache_numshardbits=6 --target_file_size_base=16777216 --target_file_size_multiplier=1 --test_batches_snapshots=0 --top_level_index_pinning=0 --uncache_aggressiveness=4404 --universal_max_read_amp=-1 --unpartitioned_pinning=2 --use_adaptive_mutex=0 --use_adaptive_mutex_lru=1 --use_attribute_group=0 --use_delta_encoding=1 --use_direct_io_for_flush_and_compaction=1 --use_direct_reads=1 --use_full_merge_v1=1 --use_get_entity=0 --use_merge=0 --use_multi_cf_iterator=1 --use_multi_get_entity=0 --use_multiget=1 --use_put_entity_one_in=0 --use_sqfc_for_range_queries=1 --use_timed_put_one_in=0 --use_write_buffer_manager=0 --user_timestamp_size=0 --value_size_mult=32 --verification_only=0 --verify_checksum=1 --verify_checksum_one_in=1000 --verify_compression=1 --verify_db_one_in=10000 --verify_file_checksums_one_in=0 --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 --write_fault_one_in=0 --writepercent=35

```

Reviewed By: anand1976, ltamasi

Differential Revision: D60489038

Pulled By: hx235

fbshipit-source-id: fb35889ae1509eb1bac27b015bb24a07d3b95268
2024-08-02 10:45:34 -07:00
Changyu Bi 8be824e316 Use compensated file size for intra-L0 compaction (#12878)
Summary:
In leveled compaction, we pick intra-L0 compaction instead of L0->Lbase whenever L0 size is small. When L0 files contain many deletions, it makes more sense to compact then down instead of accumulating tombstones in L0. This PR uses compensated_file_size when computing L0 size for determining intra-L0 compaction. Also scale down the limit on total L0 size further to be more cautious about accumulating data in L0.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12878

Test Plan: updated unit test.

Reviewed By: hx235

Differential Revision: D59932421

Pulled By: cbi42

fbshipit-source-id: 9de973ac51eb7df81b38b8c68110072b1aa06321
2024-08-01 17:49:34 -07:00
Yu Zhang 005256bcc8 Fix same user collected property being re-added in stress tests (#12907)
Summary:
As titled. The `emplace_back` below will add the same collector factory again during Reopen.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12907

Reviewed By: pdillinger

Differential Revision: D60614170

Pulled By: jowlyzhang

fbshipit-source-id: a79498d209e4910a5e94a5cb742935015277918c
2024-08-01 16:21:39 -07:00
Levi Tamasi 8767267315 Attempt to fix the nightly build-linux-clang-13-asan-ubsan-with-folly build
Summary: https://github.com/facebook/rocksdb/pull/12801 updated the version of `folly` used in RocksDB builds to a revision that requires `g++` version 10 when built with a GNU toolchain. This shouldn't really matter for this nightly GitHub Actions job, since we're supposed to be building with `clang++-13`; however, due to the way the compilers had been set, seems like we were historically only building RocksDB with `clang` (and `folly` with `gcc-9`, which led to a broken build after the update). Attempt to fix this by setting `CC` / `CXX` to `clang` / `clang++` in the job's environment.

Reviewed By: pdillinger

Differential Revision: D60534452

fbshipit-source-id: c7b5a02409fb1ea50e4524731237f7bc8d3f7ca6
2024-08-01 13:29:56 -07:00
Yu Zhang 319374ae67 Add some checks at property block creation side (#12898)
Summary:
Crash test encountered this failure:
```file ingestion error: Corruption: properties unsorted under specified IngestExternalFileOptions: move_files: 0, verify_checksums_before_ingest: 1, verify_checksums_readahead_size: 1048576 (Empty string or missing field indicates default option or value is used```

Further inspection showed out of order table properties in an external file created by `SstFileWriter` for ingestion, and the file is likely created like this because it passed the initial checksum check. This change added some assertions to check invariant at the properties creation and collecting side.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12898

Test Plan: Existing tests

Reviewed By: hx235

Differential Revision: D60459817

Pulled By: jowlyzhang

fbshipit-source-id: 91474943d2f9d7795f00b6031c08a13ab91e2470
2024-07-31 13:28:17 -07:00
Peter Dillinger 2595476541 Fix rare WAL handling crash (#12899)
Summary:
A crash test failure in log sync in DBImpl::WriteToWAL is due to a missed case in https://github.com/facebook/rocksdb/issues/12734. Just need to apply similar logic from DBImpl::SyncWalImpl to check for an already closed WAL (nullptr writer). This is extremely rare because it only comes from failed Sync on a closed WAL.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12899

Test Plan: watch crash test

Reviewed By: cbi42

Differential Revision: D60481652

Pulled By: pdillinger

fbshipit-source-id: 4a176bb6a53dcf077f88344710a110c2f946c386
2024-07-30 17:38:30 -07:00
anand76 55877d8893 Make transaction name conflict check more robust (#12895)
Summary:
The `PessimisticTransaction::SetName()` code checks for an existing txn of the given name before registering the new txn. However, this is not atomic, which could result in a race condition if two txns try to register with the same name. Both might succeed and lead to unpredictable behavior. This PR makes the test and set atomic.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12895

Reviewed By: pdillinger

Differential Revision: D60460482

Pulled By: anand1976

fbshipit-source-id: e8afeb2356e1b8f4e8df785cb73532739f82579d
2024-07-30 12:31:02 -07:00
Peter Dillinger 9058fd037c Small CPU optimization to experimental range filters (#12893)
Summary:
By reusing an object that owns a vector. The vector allocation/sizing was substantial in a CPU profile.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12893

Test Plan: existing tests

Reviewed By: jowlyzhang

Differential Revision: D60405139

Pulled By: pdillinger

fbshipit-source-id: 8bfbc07cd9b4829f2ac9015e90f2b4eba61fd984
2024-07-29 14:23:35 -07:00
Yu Zhang 24d86f7b41 Add an option to toggle timestamp based validation for the whole DB (#12857)
Summary:
As titled. This PR adds a `TransactionDBOptions` field `enable_udt_validation` to allow user to toggle the timestamp based validation behavior across the whole DB. When it is true, which is the default value and the existing behavior. A recap of what this behavior is: `GetForUpdate` does timestamp based conflict checking to make sure no other transaction has committed a version of the key tagged with a timestamp equal to or newer than the calling transaction's `read_timestamp_` the user set via `SetReadTimestampForValidation`. When this field is set to false, we disable timestamp based validation for the whole DB. MyRocks find it hard to find a read timestamp for this validation API, so we added this flexibility.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12857

Test Plan: Added unit test

Reviewed By: ltamasi

Differential Revision: D60194134

Pulled By: jowlyzhang

fbshipit-source-id: b8507f8ddc37fc7a2948cf492ce5c599ae646fef
2024-07-29 13:54:37 -07:00
Hui Xiao 408e8d4c85 Handle injected write error after successful WAL write in crash test + misc (#12838)
Summary:
**Context/Summary:**
We discovered the following false positive in our crash test lately:
(1) PUT() writes k/v to WAL but fails in `ApplyWALToManifest()`. The k/v is in the WAL
(2) Current stress test logic will rollback the expected state of such k/v since PUT() fails
(3) If the DB crashes before recovery finishes and reopens, the WAL will be replayed and the k/v is in the DB while the expected state have been roll-backed.

We decided to leave those expected state to be pending until the loop-write of the same key succeeds.

Bonus: Now that I realized write to manifest can also fail the write which faces the similar problem as https://github.com/facebook/rocksdb/pull/12797, I decided to disable fault injection on user write per thread (instead of globally) when tracing is needed for prefix recovery; some refactory

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12838

Test Plan:
Rehearsal CI
Run below command (varies on sync_fault_injection=1,0 to verify ExpectedState behavior) for a while to ensure crash recovery validation works fine

```
python3 tools/db_crashtest.py --simple blackbox --interval=30 --WAL_size_limit_MB=0 --WAL_ttl_seconds=0 --acquire_snapshot_one_in=10000 --adaptive_readahead=1 --adm_policy=1 --advise_random_on_open=0 --allow_concurrent_memtable_write=0 --allow_data_in_errors=True --allow_fallocate=0 --async_io=0 --auto_readahead_size=0 --avoid_flush_during_recovery=0 --avoid_flush_during_shutdown=0 --avoid_unnecessary_blocking_io=0 --backup_max_size=104857600 --backup_one_in=0 --batch_protection_bytes_per_key=0 --bgerror_resume_retry_interval=1000000 --block_align=1 --block_protection_bytes_per_key=4 --block_size=16384 --bloom_before_level=4 --bloom_bits=56.810257702625165 --bottommost_compression_type=none --bottommost_file_compaction_delay=0 --bytes_per_sync=262144 --cache_index_and_filter_blocks=1 --cache_index_and_filter_blocks_with_high_priority=1 --cache_size=8388608 --cache_type=auto_hyper_clock_cache --charge_compression_dictionary_building_buffer=1 --charge_file_metadata=1 --charge_filter_construction=1 --charge_table_reader=0 --check_multiget_consistency=0 --check_multiget_entity_consistency=1 --checkpoint_one_in=10000 --checksum_type=kxxHash --clear_column_family_one_in=0 --column_families=1 --compact_files_one_in=1000 --compact_range_one_in=1000 --compaction_pri=4 --compaction_readahead_size=1048576 --compaction_ttl=10 --compress_format_version=1 --compressed_secondary_cache_ratio=0.0 --compressed_secondary_cache_size=0 --compression_checksum=0 --compression_max_dict_buffer_bytes=0 --compression_max_dict_bytes=0 --compression_parallel_threads=1 --compression_type=none --compression_use_zstd_dict_trainer=0 --compression_zstd_max_train_bytes=0 --continuous_verification_interval=0 --daily_offpeak_time_utc=04:00-08:00 --data_block_index_type=1 --db_write_buffer_size=0 --default_temperature=kWarm --default_write_temperature=kCold --delete_obsolete_files_period_micros=30000000 --delpercent=20 --delrangepercent=20 --destroy_db_initially=0 --detect_filter_construct_corruption=0 --disable_file_deletions_one_in=10000 --disable_manual_compaction_one_in=1000000 --disable_wal=0 --dump_malloc_stats=0 --enable_checksum_handoff=1 --enable_compaction_filter=0 --enable_custom_split_merge=0 --enable_do_not_compress_roles=0 --enable_index_compression=1 --enable_memtable_insert_with_hint_prefix_extractor=0 --enable_pipelined_write=0 --enable_sst_partitioner_factory=0 --enable_thread_tracking=0 --enable_write_thread_adaptive_yield=0 --error_recovery_with_no_fault_injection=1 --exclude_wal_from_write_fault_injection=0 --fail_if_options_file_error=1 --fifo_allow_compaction=0 --file_checksum_impl=crc32c --fill_cache=1 --flush_one_in=1000000 --format_version=3 --get_all_column_family_metadata_one_in=1000000 --get_current_wal_file_one_in=0 --get_live_files_apis_one_in=1000000 --get_properties_of_all_tables_one_in=1000000 --get_property_one_in=100000 --get_sorted_wal_files_one_in=0 --hard_pending_compaction_bytes_limit=274877906944 --high_pri_pool_ratio=0.5 --index_block_restart_interval=4 --index_shortening=2 --index_type=0 --ingest_external_file_one_in=0 --initial_auto_readahead_size=16384 --inplace_update_support=0 --iterpercent=10 --key_len_percent_dist=1,30,69 --key_may_exist_one_in=100 --last_level_temperature=kWarm --level_compaction_dynamic_level_bytes=1 --lock_wal_one_in=10000 --log_file_time_to_roll=60 --log_readahead_size=16777216 --long_running_snapshots=1 --low_pri_pool_ratio=0 --lowest_used_cache_tier=0 --manifest_preallocation_size=0 --manual_wal_flush_one_in=0 --mark_for_compaction_one_file_in=10 --max_auto_readahead_size=16384 --max_background_compactions=1 --max_bytes_for_level_base=67108864 --max_key=100000 --max_key_len=3 --max_log_file_size=1048576 --max_manifest_file_size=32768 --max_sequential_skip_in_iterations=1 --max_total_wal_size=0 --max_write_batch_group_size_bytes=16 --max_write_buffer_number=10 --max_write_buffer_size_to_maintain=8388608 --memtable_insert_hint_per_batch=1 --memtable_max_range_deletions=0 --memtable_prefix_bloom_size_ratio=0.01 --memtable_protection_bytes_per_key=1 --memtable_whole_key_filtering=1 --memtablerep=skip_list --metadata_charge_policy=1 --metadata_read_fault_one_in=0 --metadata_write_fault_one_in=8 --min_write_buffer_number_to_merge=1 --mmap_read=1 --mock_direct_io=False --nooverwritepercent=1 --num_file_reads_for_auto_readahead=1 --open_files=-1 --open_metadata_read_fault_one_in=0 --open_metadata_write_fault_one_in=8 --open_read_fault_one_in=0 --open_write_fault_one_in=8 --ops_per_thread=100000000 --optimize_filters_for_hits=1 --optimize_filters_for_memory=1 --optimize_multiget_for_io=1 --paranoid_file_checks=0 --partition_filters=0 --partition_pinning=3 --pause_background_one_in=1000000 --periodic_compaction_seconds=2 --prefix_size=7 --prefixpercent=0 --prepopulate_block_cache=0 --preserve_internal_time_seconds=0 --progress_reports=0 --promote_l0_one_in=0 --read_amp_bytes_per_bit=0 --read_fault_one_in=1000 --readahead_size=524288 --readpercent=10 --recycle_log_file_num=1 --reopen=0 --report_bg_io_stats=0 --reset_stats_one_in=1000000 --sample_for_compression=0 --secondary_cache_fault_one_in=0 --set_options_one_in=0 --skip_stats_update_on_db_open=1 --snapshot_hold_ops=100000 --soft_pending_compaction_bytes_limit=68719476736 --sqfc_name=foo --sqfc_version=0 --sst_file_manager_bytes_per_sec=104857600 --sst_file_manager_bytes_per_truncate=0 --stats_dump_period_sec=10 --stats_history_buffer_size=0 --strict_bytes_per_sync=1 --subcompactions=4 --sync=1 --sync_fault_injection=0 --table_cache_numshardbits=6 --target_file_size_base=16777216 --target_file_size_multiplier=1 --test_batches_snapshots=0 --top_level_index_pinning=2 --uncache_aggressiveness=239 --universal_max_read_amp=-1 --unpartitioned_pinning=1 --use_adaptive_mutex=1 --use_adaptive_mutex_lru=1 --use_attribute_group=0 --use_delta_encoding=0 --use_direct_io_for_flush_and_compaction=0 --use_direct_reads=0 --use_full_merge_v1=0 --use_get_entity=0 --use_merge=0 --use_multi_cf_iterator=0 --use_multi_get_entity=0 --use_multiget=0 --use_put_entity_one_in=0 --use_sqfc_for_range_queries=1 --use_timed_put_one_in=0 --use_write_buffer_manager=0 --user_timestamp_size=0 --value_size_mult=32 --verification_only=0 --verify_checksum=1 --verify_checksum_one_in=1000000 --verify_compression=0 --verify_db_one_in=100000 --verify_file_checksums_one_in=1000000 --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=0 --write_fault_one_in=8 --writepercent=40
```

Reviewed By: cbi42

Differential Revision: D59377075

Pulled By: hx235

fbshipit-source-id: 91f602fd67e2d339d378cd28b982095fd073dcb6
2024-07-29 13:51:49 -07:00
Yu Zhang d94c2adc28 Add entry for bug fix in #12882 (#12892)
Summary:
As titled.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12892

Reviewed By: hx235

Differential Revision: D60400651

Pulled By: jowlyzhang

fbshipit-source-id: 2dd60c2287143f464ecab0de859715af6ab3a825
2024-07-29 12:20:50 -07:00
Yu Zhang 9883b5f497 Fix manifest_number_ point to invalid file (#12882)
Summary:
This PR fix `VersionSet`'s `manifest_number_` could be pointing to an invalid number intermediately. This happens when a new manifest roll is attempted but fast failed after loading table handlers and before the new manifest file creation/writing is actually attempted.

In theory, a later manifest roll effort will overthrow this intermediate invalid in memory state. There is on harm when the DB crashes in this invalid state either. But efforts that takes a file snapshot of the DB like backup will incorrectly try to copy a non existing manifest file.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12882

Reviewed By: cbi42

Differential Revision: D60204956

Pulled By: jowlyzhang

fbshipit-source-id: effbdb124b582f879d114988af06ac63867fc549
2024-07-24 17:50:08 -07:00
Yu Zhang 05c9c9aeed Fix race between test and recovery flush switch memtable (#12884)
Summary:
As titled, to fix this type of data race:
https://github.com/facebook/rocksdb/actions/runs/10066814221/job/27829003372?pr=12882

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12884

Test Plan:
COMPILE_WITH_TSAN=1 make -j10 db_wal_test
./db_wal_test --gtest_filter=DBWALTest.RecoveryFlushSwitchWALOnEmptyMemtable --gtest_repeat=100

Reviewed By: anand1976

Differential Revision: D60197834

Pulled By: jowlyzhang

fbshipit-source-id: 89524cdb4d17a1b647295bcccf5eb2d7d425bc6a
2024-07-24 17:06:16 -07:00
Jay Huh 086849aa4f Properly disable MultiCFIterator in WritePrepared/UnPreparedTxnDBs (#12883)
Summary:
MultiCfIterators (`CoalescingIterator` and `AttributeGroupIterator`) are not yet compatible with write-prepared/write-unprepared transactions, yet (write-committed is fine). This fix includes the following.

- Properly return `ErrorIterator` if the user attempts to use the `CoalescingIterator` or `AttributeGroupIterator` in WritePreparedTxnDB (and WriteUnpreparedTxnDB)
- Set `use_multi_cf_iterator = 0` if `use_txn=1` and `txn_write_policy != 0 (WRITE_COMMITTED)` in stress test.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12883

Test Plan:
Works
```
./db_stress ... --use_txn=1 --txn_write_policy=0 --use_multi_cf_iterator=1
```

Fails
```
./db_stress ... --use_txn=1 --txn_write_policy=1 --use_multi_cf_iterator=1
```

Reviewed By: cbi42

Differential Revision: D60190784

Pulled By: jaykorean

fbshipit-source-id: 3bc1093e81a4ef5753ba9b32c5aea997c21bfd33
2024-07-24 16:50:12 -07:00
Peter Dillinger f456a7213f Refactor IndexBuilder::AddIndexEntry (#12867)
Summary:
Something I am working on is going to expand usage of `BlockBasedTableBuilder::Rep::last_key`, but the existing code contract for `IndexBuilder::AddIndexEntry` makes that difficult because it modifies its `last_key` parameter to be the separator value recorded in the index, often something between the two boundary keys.

This change primarily changes the contract of that function and related functions to separate function inputs and outputs, without sacrificing efficiency. For efficiency, a reusable scratch string buffer is provided by the caller, which the callee can use (or not) in returning a result Slice. That should yield a performance improvement as we are reusing a buffer for keys rather than copying into a new one each time in the FindShort* functions, without any additional string copies or conditional branches.

Additional improvements in PartitionedIndexBuilder specifically:
* Reduce string copies by eliminating `sub_index_last_key_` and instead tracking the key for the next partition in a placeholder Entry.
* Simplify code and improve code quality by changing `sub_index_builder_` to unique_ptr.
* Eliminate unnecessary NewFlushBlockPolicy call/object.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12867

Test Plan: existing tests, crash test. Will validate performance along with the change this is setting up.

Reviewed By: anand1976

Differential Revision: D59793119

Pulled By: pdillinger

fbshipit-source-id: 556da75cf13b967511f84702b2713d152f536a07
2024-07-22 14:27:31 -07:00