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12886 commits

Author SHA1 Message Date
Hui Xiao 56f7ef50d7 Fix nullptr access and race to fault_fs_guard (#12799)
Summary:
**Context/Summary:**

There are a couple places where we forgot to check fault_fs_guard before accessing it. So we can see something like this occasionally

```
=138831==Hint: address points to the zero page.
SCARINESS: 10 (null-deref)
AddressSanitizer:DEADLYSIGNAL
    #0 0x18b9e0b in rocksdb::ThreadLocalPtr::Get() const fbcode/internal_repo_rocksdb/repo/util/thread_local.cc:503
    https://github.com/facebook/rocksdb/issues/1 0x83d8b7 in rocksdb::StressTest::TestCompactRange(rocksdb::ThreadState*, long, rocksdb::Slice const&, rocksdb::ColumnFamilyHandle*) fbcode/internal_repo_rocksdb/repo/utilities/fault_injection_fs.h
```
Also accessing of `io_activties_exempted_from_fault_injection.find` not fully synced so we see the following
```
WARNING: ThreadSanitizer: data race (pid=90939)
  Write of size 8 at 0x7b4c000004d0 by thread T762 (mutexes: write M0):
    #0 std::_Rb_tree<rocksdb::Env::IOActivity, rocksdb::Env::IOActivity, std::_Identity<rocksdb::Env::IOActivity>, std::less<rocksdb::Env::IOActivity>, std::allocator<rocksdb::Env::IOActivity>>::operator=(std::_Rb_tree<rocksdb::Env::IOActivity, rocksdb::Env::IOActivity, std::_Identity<rocksdb::Env::IOActivity>, std::less<rocksdb::Env::IOActivity>, std::allocator<rocksdb::Env::IOActivity>> const&) fbcode/third-party-buck/platform010/build/libgcc/include/c++/trunk/bits/stl_tree.h:208 (db_stress+0x411c32) (BuildId: b803e5aca22c6b080defed8e85b7bfec)
    https://github.com/facebook/rocksdb/issues/1 rocksdb::DbStressListener::OnErrorRecoveryCompleted(rocksdb::Status) fbcode/third-party-buck/platform010/build/libgcc/include/c++/trunk/bits/stl_set.h:298 (db_stress+0x4112e5) (BuildId: b803e5aca22c6b080defed8e85b7bfec)
    https://github.com/facebook/rocksdb/issues/2 rocksdb::EventHelpers::NotifyOnErrorRecoveryEnd(std::vector<std::shared_ptr<rocksdb::EventListener>, std::allocator<std::shared_ptr<rocksdb::EventListener>>> const&, rocksdb::Status const&, rocksdb::Status const&, rocksdb::InstrumentedMutex*) fbcode/internal_repo_rocksdb/repo/db/event_helpers.cc:239 (db_stress+0xa09d60) (BuildId: b803e5aca22c6b080defed8e85b7bfec)

  Previous read of size 8 at 0x7b4c000004d0 by thread T131 (mutexes: write M1):
    #0 rocksdb::FaultInjectionTestFS::MaybeInjectThreadLocalError(rocksdb::FaultInjectionIOType, rocksdb::IOOptions const&, rocksdb::FaultInjectionTestFS::ErrorOperation, rocksdb::Slice*, bool, char*, bool, bool*) fbcode/third-party-buck/platform010/build/libgcc/include/c++/trunk/bits/stl_tree.h:798 (db_stress+0xf7d0f3) (BuildId: b803e5aca22c6b080defed8e85b7bfec)
```

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12799

Test Plan: CI

Reviewed By: jowlyzhang

Differential Revision: D58917449

Pulled By: hx235

fbshipit-source-id: f24fc1acc2a7d91f9f285447a97ba41397f48dbd
2024-06-24 16:10:36 -07:00
Changyu Bi e3f5125ff1 Fix "no new line at end of file" (#12806)
Summary:
internal CI with -Wnewline-eof complains about this.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12806

Reviewed By: jowlyzhang

Differential Revision: D58969551

Pulled By: cbi42

fbshipit-source-id: f97bd23f82129bac8dfd97b0ff4dbf7d2ded95d4
2024-06-24 14:50:08 -07:00
Changyu Bi 748f74aca3 Update main branch for 9.4 release (#12802)
Summary:
Main branch cut at e90e9153d5.
Updated HISTORY.md, version and format compatibility test.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12802

Reviewed By: ajkr

Differential Revision: D58956464

Pulled By: cbi42

fbshipit-source-id: 50d786c145cebf93d1dd554b1b0e26baac3cc88c
2024-06-24 11:53:05 -07:00
Peter Dillinger 39455974cb Fix possible double-free on TruncatedRangeDelIterator (#12805)
Summary:
Not sure where or how it happens, but using a recent CircleCI failure I got a reliable db_stress reproducer.

Using std::unique_ptr appropriately for managing them has apparently (and unsurprisingly) fixed the problem without needing to know exactly where the problem was.

Suggested follow-up:
* Three or even four levels of pointers is very confusing to work with. Surely this part can be cleaned up to be simpler.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12805

Test Plan:
Reproducer passes, plus ASAN test and crash test runs. I don't think it's worth the extra work to track down the details and create a careful unit test.

```
./db_stress --WAL_size_limit_MB=1 --WAL_ttl_seconds=60 --acquire_snapshot_one_in=10000 --adaptive_readahead=1 --adm_policy=2 --advise_random_on_open=1 --allow_data_in_errors=True --allow_fallocate=1 --async_io=0 --auto_readahead_size=1 --avoid_flush_during_recovery=0 --avoid_flush_during_shutdown=1 --avoid_unnecessary_blocking_io=1 --backup_max_size=104857600 --backup_one_in=100000 --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=2147483646 --bloom_bits=15 --bottommost_compression_type=none --bottommost_file_compaction_delay=3600 --bytes_per_sync=262144 --cache_index_and_filter_blocks=0 --cache_index_and_filter_blocks_with_high_priority=0 --cache_size=33554432 --cache_type=tiered_lru_cache --charge_compression_dictionary_building_buffer=0 --charge_file_metadata=1 --charge_filter_construction=0 --charge_table_reader=0 --check_multiget_consistency=1 --check_multiget_entity_consistency=1 --checkpoint_one_in=10000 --checksum_type=kxxHash --clear_column_family_one_in=0 --compact_files_one_in=1000000 --compact_range_one_in=1000 --compaction_pri=0 --compaction_readahead_size=0 --compaction_ttl=0 --compress_format_version=2 --compressed_secondary_cache_ratio=0.2 --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.gpxs/rocksdb_crashtest_blackbox --db_write_buffer_size=0 --default_temperature=kWarm --default_write_temperature=kCold --delete_obsolete_files_period_micros=21600000000 --delpercent=4 --delrangepercent=1 --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=1 --enable_checksum_handoff=1 --enable_compaction_filter=0 --enable_custom_split_merge=0 --enable_do_not_compress_roles=0 --enable_index_compression=0 --enable_memtable_insert_with_hint_prefix_extractor=0 --enable_pipelined_write=1 --enable_sst_partitioner_factory=0 --enable_thread_tracking=1 --enable_write_thread_adaptive_yield=0 --error_recovery_with_no_fault_injection=0 --expected_values_dir=/dev/shm/rocksdb.gpxs/rocksdb_crashtest_expected --fail_if_options_file_error=0 --fifo_allow_compaction=0 --file_checksum_impl=none --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=10000 --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=274877906944 --high_pri_pool_ratio=0 --index_block_restart_interval=4 --index_shortening=0 --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=kHot --level_compaction_dynamic_level_bytes=0 --lock_wal_one_in=1000000 --log_file_time_to_roll=0 --log_readahead_size=0 --long_running_snapshots=1 --low_pri_pool_ratio=0 --lowest_used_cache_tier=2 --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=1 --max_total_wal_size=0 --max_write_batch_group_size_bytes=16 --max_write_buffer_number=3 --max_write_buffer_size_to_maintain=0 --memtable_insert_hint_per_batch=1 --memtable_max_range_deletions=100 --memtable_prefix_bloom_size_ratio=0 --memtable_protection_bytes_per_key=4 --memtable_whole_key_filtering=0 --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=0 --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=16 --ops_per_thread=100000000 --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=1000000 --periodic_compaction_seconds=0 --prefix_size=-1 --prefixpercent=0 --prepopulate_block_cache=1 --preserve_internal_time_seconds=60 --progress_reports=0 --promote_l0_one_in=0 --read_amp_bytes_per_bit=0 --read_fault_one_in=32 --readahead_size=524288 --readpercent=50 --recycle_log_file_num=1 --reopen=0 --report_bg_io_stats=1 --reset_stats_one_in=10000 --sample_for_compression=5 --secondary_cache_fault_one_in=32 --secondary_cache_uri= --set_options_one_in=10000 --skip_stats_update_on_db_open=0 --snapshot_hold_ops=100000 --soft_pending_compaction_bytes_limit=68719476736 --sqfc_name=bar --sqfc_version=1 --sst_file_manager_bytes_per_sec=104857600 --sst_file_manager_bytes_per_truncate=0 --stats_dump_period_sec=0 --stats_history_buffer_size=1048576 --strict_bytes_per_sync=1 --subcompactions=3 --sync=0 --sync_fault_injection=1 --table_cache_numshardbits=0 --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=5 --universal_max_read_amp=-1 --unpartitioned_pinning=2 --use_adaptive_mutex=0 --use_adaptive_mutex_lru=0 --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=0 --use_multi_cf_iterator=0 --use_multi_get_entity=0 --use_multiget=1 --use_put_entity_one_in=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=1 --verify_db_one_in=100000 --verify_file_checksums_one_in=0 --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=1 --write_fault_one_in=0 --writepercent=35
```

Reviewed By: cbi42

Differential Revision: D58958390

Pulled By: pdillinger

fbshipit-source-id: 1271cfdcc3c574f78cd59f3c68148f7ed4a19c47
2024-06-24 11:51:16 -07:00
Yu Zhang fa4ffc816c Fix race condition between event listener and error handler (#12803)
Summary:
Fix a race for accessing `bg_error_` after mutex is released. We make some copies before releasing to avoid this.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12803

Reviewed By: cbi42

Differential Revision: D58957557

Pulled By: jowlyzhang

fbshipit-source-id: 3c7369a3b8c8707aebc0044ff98288c898c05cb8
2024-06-24 11:45:28 -07:00
Andrew Kryczka 13549817af Update pinned folly version (#12801)
Summary:
843fd57679 fixed the URL for libsodium. Updated folly version to latest, which includes that commit. I am not sure the URL will be stable, but it still seems better than substituting the URL.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12801

Reviewed By: cbi42

Differential Revision: D58921033

Pulled By: ajkr

fbshipit-source-id: 442ea3ff83ced2679ea9bfd04945e9449ce2ff96
2024-06-24 10:46:29 -07:00
Richard Barnes 5c391c7713 Fix deprecated dynamic exception in infra_asic_fpga/validation/freya/bmtc/ssp/src/gcc-arm-none-eabi-9-2019-q4-major/arm-none-eabi/include/c++/9.2.1/tr1/special_function_util.h +5
Summary:
LLVM has detected a violation of `-Wdeprecated-dynamic-exception-spec`. Dynamic exceptions were removed in C++17. This diff fixes the deprecated instance(s).

See [Dynamic exception specification](https://en.cppreference.com/w/cpp/language/except_spec) and [noexcept specifier](https://en.cppreference.com/w/cpp/language/noexcept_spec).

Reviewed By: dmm-fb

Differential Revision: D58953050

fbshipit-source-id: 8559dc925ea5ed0a6dbf938aa02ee810f01047ae
2024-06-24 09:30:20 -07:00
Hui Xiao e90e9153d5 Calculate injected_error_count even when SharedState::ignore_read_error (#12800)
Summary:
**Context/Summary:**

`injected_error_count` is needed to verify read error injection. For example, when injected_error_count == 0, the read call should not return error. 981fd432fa only calculated `injected_error_count` under `SharedState::ignore_read_error=false` so `injected_error_count==0` when `SharedState::ignore_read_error=true`. However  we can still inject read error in critical read path under `SharedState::ignore_read_error=true` so the read call is expected to return injected error. This contradicts to the  `injected_error_count == 0` as we skipped its calculation. As a consequence, we see

```
TestPrefixScan error: IO error: injected read error;
Verification failed
```
in code paths
```
if (s.ok()) {
    thread->stats.AddPrefixes(1, count);
  } else if (injected_error_count > 0 && IsRetryableInjectedError(s)) {
    fprintf(stdout, "TestPrefixScan error: %s\n", s.ToString().c_str());
  } else {
    fprintf(stderr, "TestPrefixScan error: %s\n", s.ToString().c_str());
    thread->shared->SetVerificationFailure();
}
```

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12800

Test Plan: CI

Reviewed By: cbi42

Differential Revision: D58918014

Pulled By: hx235

fbshipit-source-id: d73139c114fb3f61003dedca116f7ec36309eca4
2024-06-23 21:54:27 -07:00
Hui Xiao 9d64ca55b7 Proceed for new memtable on okay status (#12798)
Summary:
**Context/Summary:**
The relevant code logs info of newly created WAL and proceeds to "ConstructFragmentedRangeTombstones()" even when the previous step fails. This PR fixes it.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12798

Test Plan: Existing tests

Reviewed By: cbi42

Differential Revision: D58917246

Pulled By: hx235

fbshipit-source-id: f395210d91e50617195cb9a8047cf5d82db0c40e
2024-06-22 16:17:59 -07:00
Andrew Kryczka 40944cbbdb Fix folly build (#12795)
Summary:
- Updated pinned folly version to the latest
- gcc/g++ 10 is required since https://github.com/facebook/folly/commit/2c1c617e9e so we had to modify the tests using gcc/g++ 7
- libsodium 1.0.17 is no longer downloadable from GitHub so I found it elsewhere. I will submit a PR for that upstream to folly
- USE_FOLLY_LITE changes
  - added boost header dependency instead of commenting out the `#include`s since that approach stopped working
  - added "folly/lang/Exception.cpp" to the compilation

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12795

Reviewed By: hx235

Differential Revision: D58916693

Pulled By: ajkr

fbshipit-source-id: b5f9bca2d929825846ac898b785972b071db62b1
2024-06-22 15:15:02 -07:00
Changyu Bi b4a84efb4e Fix assertion failure in ConstructFragmentedRangeTombstones() (#12796)
Summary:
the assertion `assert(!IsFragmentedRangeTombstonesConstructed(false));` assumes ConstructFragmentedRangeTombstones() is called only once for a memtable. This is not true since SwitchMemtable() can be called multiple times on the same live memtable, if a previous attempt fails. So remove the assertion in this PR and simplify relevant code.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12796

Test Plan: the exact condition to trigger manifest write in SwitchMemtable() is complicated. Will monitor crash test to see if there's no more failure.

Reviewed By: hx235

Differential Revision: D58913310

Pulled By: cbi42

fbshipit-source-id: 458bb9eebcf6743e9001186fcb757e4b50e8a5d2
2024-06-22 11:31:16 -07:00
Hui Xiao 981fd432fa Fix not getting expected injected read error (#12793)
Summary:
**Context/Summary:**

https://github.com/facebook/rocksdb/pull/12713 accidentally removed the mechanism of ignoring injected read error on non-critical read path such as read from filter. IO failure in read from filter should not fail the read as we can always read from the actual file. Therefore error injection in filter read path does not need to lead to failure in Get() and crash test should allow that. Otherwise, we will get crash test error "Didn't get expected error from..."

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12793

Test Plan: CI

Reviewed By: cbi42

Differential Revision: D58895393

Pulled By: hx235

fbshipit-source-id: 5b605d8446e0b8d4149cdbe6f4be3c7534d4acfa
2024-06-21 20:11:57 -07:00
Hui Xiao d6cf9de9d9 Disable fault injection with BatchedOpsStressTest and MultiOpsTxnsStressTest (#12794)
Summary:
**Context/Summary:**

https://github.com/facebook/rocksdb/pull/12713 accidentally turned on fault injection in BatchedOpsStressTest and MultiOpsTxnsStressTest. Though this was meant to be an increased testing coverage, it also made our CI noisy. For now we decided to disable it before we manage to stabilize the CI and fix bugs surfaced in NonBatchedOpsStressTest which impacts more users.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12794

Test Plan: CI

Reviewed By: cbi42

Differential Revision: D58897598

Pulled By: hx235

fbshipit-source-id: 8094072ef1bff27d7825efed0876f365a31fef9c
2024-06-21 19:50:59 -07:00
Peter Dillinger 3ee4d5a11a Fix possible crash in failure to sync some WALs (#12789)
Summary:
I believe this was possible with recyclable logs before recent work like https://github.com/facebook/rocksdb/issues/12734, but this cleans up a couple of possible crashes revealed by the crash test.  A WAL with a nullptr file writer (already closed) can persist in `logs_` if a later WAL fails to sync. In case of any WAL sync failures, we don't record WAL syncs to the manifest. Thus, even if a WAL is fully synced and closed, we might need to keep it on the `logs_` list so that we know to record its sync to the manifest if there should be a successful sync next time. (However, I believe that's future-looking because currently any failure in WAL sync is considered non-recoverable.)

I don't believe this was likely enough before recent changes to warrant a release note (if it was possible).

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12789

Test Plan: A unit test that would reveal the crashes, now fixed

Reviewed By: cbi42

Differential Revision: D58874154

Pulled By: pdillinger

fbshipit-source-id: bc69407cd9cbcd080af9585d502d4e33dafc3d29
2024-06-21 12:56:21 -07:00
Jay Huh cce51f0664 Fix heap-use-after-free in MultiCfIteratorImpl (#12784)
Summary:
# Summary

When changing the direction of the multi-cf-iter, we do this by `Seek(current_key)` (if changing from backward to forward) or `SeekForPrev(current_key)` (if forward -> backward) in the child iters and rebuild the heap.

`Slice target` is just a pointer and contents are not guaranteed to be the same after re-init the heap.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12784

Test Plan:
I was able to steadily repro by building with `COMPILE_WITH_ASAN=1` running db_stress.
```
COMPILE_WITH_ASAN=1 make -j64 dbg
```
```
./db_stress --WAL_size_limit_MB=1 --WAL_ttl_seconds=60 --acquire_snapshot_one_in=10000 --adaptive_readahead=0 --adm_policy=2 --advise_random_on_open=1 --allow_data_in_errors=True --allow_fallocate=0 --async_io=0 --auto_readahead_size=1 --avoid_flush_during_recovery=0 --avoid_flush_during_shutdown=1 --avoid_unnecessary_blocking_io=1 --backup_max_size=104857600 --backup_one_in=1000 --batch_protection_bytes_per_key=0 --bgerror_resume_retry_interval=100 --block_align=1 --block_protection_bytes_per_key=8 --block_size=16384 --bloom_before_level=2147483646 --bloom_bits=62.9095874568401 --bottommost_compression_type=none --bottommost_file_compaction_delay=600 --bytes_per_sync=0 --cache_index_and_filter_blocks=0 --cache_index_and_filter_blocks_with_high_priority=0 --cache_size=33554432 --cache_type=lru_cache --charge_compression_dictionary_building_buffer=0 --charge_file_metadata=1 --charge_filter_construction=1 --charge_table_reader=0 --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=1000000 --compact_range_one_in=1000000 --compaction_pri=1 --compaction_readahead_size=0 --compaction_ttl=100 --compress_format_version=2 --compressed_secondary_cache_size=8388608 --compression_checksum=1 --compression_max_dict_buffer_bytes=1099511627775 --compression_max_dict_bytes=16384 --compression_parallel_threads=1 --compression_type=none --compression_use_zstd_dict_trainer=1 --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 --db_write_buffer_size=0 --default_temperature=kUnknown --default_write_temperature=kWarm --delete_obsolete_files_period_micros=21600000000 --delpercent=4 --delrangepercent=1 --destroy_db_initially=0 --detect_filter_construct_corruption=1 --disable_file_deletions_one_in=1000000 --disable_manual_compaction_one_in=10000 --disable_wal=0 --dump_malloc_stats=1 --enable_checksum_handoff=0 --enable_compaction_filter=0 --enable_custom_split_merge=1 --enable_do_not_compress_roles=0 --enable_index_compression=0 --enable_memtable_insert_with_hint_prefix_extractor=0 --enable_pipelined_write=1 --enable_sst_partitioner_factory=1 --enable_thread_tracking=1 --enable_write_thread_adaptive_yield=1 --error_recovery_with_no_fault_injection=0 --expected_values_dir=/dev/shm/rocksdb_test/rocksdb_crashtest_expected --fail_if_options_file_error=0 --fifo_allow_compaction=1 --file_checksum_impl=crc32c --fill_cache=0 --flush_one_in=1000000 --format_version=4 --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=1000000 --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=4 --index_shortening=1 --index_type=0 --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=kHot --level_compaction_dynamic_level_bytes=1 --lock_wal_one_in=10000 --log2_keys_per_lock=10 --log_file_time_to_roll=60 --log_readahead_size=0 --long_running_snapshots=1 --low_pri_pool_ratio=0 --lowest_used_cache_tier=0 --manifest_preallocation_size=5120 --manual_wal_flush_one_in=0 --mark_for_compaction_one_file_in=0 --max_auto_readahead_size=16384 --max_background_compactions=20 --max_bytes_for_level_base=10485760 --max_key=100000 --max_key_len=3 --max_log_file_size=0 --max_manifest_file_size=1073741824 --max_sequential_skip_in_iterations=1 --max_total_wal_size=0 --max_write_batch_group_size_bytes=64 --max_write_buffer_number=3 --max_write_buffer_size_to_maintain=0 --memtable_insert_hint_per_batch=0 --memtable_max_range_deletions=0 --memtable_prefix_bloom_size_ratio=0 --memtable_protection_bytes_per_key=8 --memtable_whole_key_filtering=0 --memtablerep=skip_list --metadata_charge_policy=0 --metadata_read_fault_one_in=1000 --metadata_write_fault_one_in=128 --min_write_buffer_number_to_merge=1 --mmap_read=0 --mock_direct_io=True --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=0 --open_read_fault_one_in=0 --open_write_fault_one_in=16 --ops_per_thread=20000000 --optimize_filters_for_hits=0 --optimize_filters_for_memory=0 --optimize_multiget_for_io=0 --paranoid_file_checks=1 --partition_filters=0 --partition_pinning=3 --pause_background_one_in=1000000 --periodic_compaction_seconds=0 --persist_user_defined_timestamps=1 --prefix_size=-1 --prefixpercent=0 --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=50 --recycle_log_file_num=0 --reopen=20 --report_bg_io_stats=1 --reset_stats_one_in=10000 --sample_for_compression=0 --secondary_cache_fault_one_in=0 --secondary_cache_uri= --skip_stats_update_on_db_open=0 --snapshot_hold_ops=100000 --soft_pending_compaction_bytes_limit=68719476736 --sqfc_name=bar --sqfc_version=0 --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=0 --subcompactions=1 --sync=0 --sync_fault_injection=1 --table_cache_numshardbits=6 --target_file_size_base=2097152 --target_file_size_multiplier=2 --test_batches_snapshots=0 --test_cf_consistency=0 --top_level_index_pinning=0 --uncache_aggressiveness=14 --universal_max_read_amp=-1 --unpartitioned_pinning=2 --use_adaptive_mutex=1 --use_adaptive_mutex_lru=0 --use_attribute_group=0 --use_delta_encoding=1 --use_direct_io_for_flush_and_compaction=0 --use_direct_reads=1 --use_full_merge_v1=0 --use_get_entity=1 --use_merge=0 --use_multi_cf_iterator=1 --use_multi_get_entity=1 --use_multiget=1 --use_put_entity_one_in=0 --use_sqfc_for_range_queries=1 --use_timed_put_one_in=0 --use_txn=0 --use_write_buffer_manager=0 --user_timestamp_size=8 --value_size_mult=32 --verification_only=0 --verify_checksum=1 --verify_checksum_one_in=1000000 --verify_compression=1 --verify_db_one_in=10000 --verify_file_checksums_one_in=1000 --verify_iterator_with_expected_state_one_in=5 --verify_sst_unique_id_in_manifest=1 --wal_bytes_per_sync=0 --wal_compression=zstd --write_buffer_size=4194304 --write_dbid_to_manifest=1 --write_fault_one_in=0 --writepercent=35
```
```
==1606272==ERROR: AddressSanitizer: heap-use-after-free on address 0x6060000b0cc0 at pc 0x7f733469c7de bp 0x7f7311bfcfe0 sp 0x7f7311bfc790
READ of size 40 at 0x6060000b0cc0 thread T57
    #0 0x7f733469c7dd in __interceptor_memcpy /home/engshare/third-party2/gcc/11.x/src/gcc-11.x/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:827
    https://github.com/facebook/rocksdb/issues/1 0x7f7331f65f7e in rocksdb::IterKey::SetInternalKey(rocksdb::Slice const&, rocksdb::Slice const&, unsigned long, rocksdb::ValueType, rocksdb::Slice const*) db/dbformat.h:761
    https://github.com/facebook/rocksdb/issues/2 0x7f7331f661ee in rocksdb::IterKey::SetInternalKey(rocksdb::Slice const&, unsigned long, rocksdb::ValueType, rocksdb::Slice const*) db/dbformat.h:776
    https://github.com/facebook/rocksdb/issues/3 0x7f73323039ff in rocksdb::DBIter::SetSavedKeyToSeekTarget(rocksdb::Slice const&) db/db_iter.cc:1462
    https://github.com/facebook/rocksdb/issues/4 0x7f7332304eb8 in rocksdb::DBIter::Seek(rocksdb::Slice const&) db/db_iter.cc:1540
    https://github.com/facebook/rocksdb/issues/5 0x7f7331d94abd in rocksdb::ArenaWrappedDBIter::Seek(rocksdb::Slice const&) (/data/users/jewoongh/rocksdb/librocksdb.so.9.4+0x1394abd)
    https://github.com/facebook/rocksdb/issues/6 0x7f73320f1a52 in rocksdb::MultiCfIteratorImpl::Seek(rocksdb::Slice const&)::{lambda(rocksdb::Iterator*)https://github.com/facebook/rocksdb/issues/2}::operator()(rocksdb::Iterator*) const db/multi_cf_iterator_impl.h:73
    https://github.com/facebook/rocksdb/issues/7 0x7f73320fccf0 in void rocksdb::MultiCfIteratorImpl::SeekCommon<rocksdb::BinaryHeap<rocksdb::MultiCfIteratorInfo, rocksdb::MultiCfIteratorImpl::MultiCfHeapItemComparator<std::greater<int> > >, rocksdb::MultiCfIteratorImpl::Seek(rocksdb::Slice const&)::{lambda(rocksdb::Iterator*)https://github.com/facebook/rocksdb/issues/2}>(rocksdb::BinaryHeap<rocksdb::MultiCfIteratorInfo, rocksdb::MultiCfIteratorImpl::MultiCfHeapItemComparator<std::greater<int> > >&, rocksdb::MultiCfIteratorImpl::Seek(rocksdb::Slice const&)::{lambda(rocksdb::Iterator*)https://github.com/facebook/rocksdb/issues/2}) (/data/users/jewoongh/rocksdb/librocksdb.so.9.4+0x16fccf0)
    https://github.com/facebook/rocksdb/issues/8 0x7f73320f1a93 in rocksdb::MultiCfIteratorImpl::Seek(rocksdb::Slice const&) db/multi_cf_iterator_impl.h:73
    https://github.com/facebook/rocksdb/issues/9 0x7f73320f1dbe in rocksdb::MultiCfIteratorImpl::Next()::{lambda()https://github.com/facebook/rocksdb/issues/1}::operator()() const db/multi_cf_iterator_impl.h:90
    https://github.com/facebook/rocksdb/issues/10 0x7f73320fe159 in rocksdb::BinaryHeap<rocksdb::MultiCfIteratorInfo, rocksdb::MultiCfIteratorImpl::MultiCfHeapItemComparator<std::greater<int> > >& rocksdb::MultiCfIteratorImpl::GetHeap<rocksdb::BinaryHeap<rocksdb::MultiCfIteratorInfo, rocksdb::MultiCfIteratorImpl::MultiCfHeapItemComparator<std::greater<int> > >, rocksdb::MultiCfIteratorImpl::Next()::{lambda()https://github.com/facebook/rocksdb/issues/1}>(rocksdb::MultiCfIteratorImpl::Next()::{lambda()https://github.com/facebook/rocksdb/issues/1}) (/data/users/jewoongh/rocksdb/librocksdb.so.9.4+0x16fe159)
    https://github.com/facebook/rocksdb/issues/11 0x7f73320f1ec9 in rocksdb::MultiCfIteratorImpl::Next() db/multi_cf_iterator_impl.h:87
    https://github.com/facebook/rocksdb/issues/12 0x7f73320f3255 in rocksdb::CoalescingIterator::Next() db/coalescing_iterator.h:34
    https://github.com/facebook/rocksdb/issues/13 0x66f28a in TestIterateImpl<rocksdb::Iterator, rocksdb::StressTest::TestIterate(rocksdb::ThreadState*, const rocksdb::ReadOptions&, const std::vector<int>&, const std::vector<long int>&)::<lambda(const rocksdb::ReadOptions&)>, rocksdb::StressTest::TestIterate(rocksdb::ThreadState*, const rocksdb::ReadOptions&, const std::vector<int>&, const std::vector<long int>&)::<lambda(rocksdb::Iterator*)> > db_stress_tool/db_stress_test_base.cc:1718
    https://github.com/facebook/rocksdb/issues/14 0x6440b4 in rocksdb::StressTest::TestIterate(rocksdb::ThreadState*, rocksdb::ReadOptions const&, std::vector<int, std::allocator<int> > const&, std::vector<long, std::allocator<long> > const&) db_stress_tool/db_stress_test_base.cc:1504
    https://github.com/facebook/rocksdb/issues/15 0x640cb0 in rocksdb::StressTest::OperateDb(rocksdb::ThreadState*) db_stress_tool/db_stress_test_base.cc:1376
    https://github.com/facebook/rocksdb/issues/16 0x6004f6 in rocksdb::ThreadBody(void*) db_stress_tool/db_stress_driver.cc:39
    https://github.com/facebook/rocksdb/issues/17 0x7f73327caed4 in StartThreadWrapper env/env_posix.cc:469
    https://github.com/facebook/rocksdb/issues/18 0x7f733029abc8 in start_thread /home/engshare/third-party2/glibc/2.34/src/glibc-2.34/nptl/pthread_create.c:434
    https://github.com/facebook/rocksdb/issues/19 0x7f733032cf5b in __GI___clone3 (/usr/local/fbcode/platform010/lib/libc.so.6+0x12cf5b)

0x6060000b0cc0 is located 0 bytes inside of 55-byte region [0x6060000b0cc0,0x6060000b0cf7)
freed by thread T57 here:
    #0 0x7f73346d1d77 in operator delete[](void*) /home/engshare/third-party2/gcc/11.x/src/gcc-11.x/libsanitizer/asan/asan_new_delete.cpp:163
    https://github.com/facebook/rocksdb/issues/1 0x7f7331d9274b in rocksdb::IterKey::ResetBuffer() db/dbformat.h:830
    https://github.com/facebook/rocksdb/issues/2 0x7f73323146b9 in rocksdb::IterKey::EnlargeBuffer(unsigned long) db/dbformat.cc:278
    https://github.com/facebook/rocksdb/issues/3 0x7f7331f33031 in rocksdb::IterKey::EnlargeBufferIfNeeded(unsigned long) db/dbformat.h:846
    https://github.com/facebook/rocksdb/issues/4 0x7f7331f65ee0 in rocksdb::IterKey::SetInternalKey(rocksdb::Slice const&, rocksdb::Slice const&, unsigned long, rocksdb::ValueType, rocksdb::Slice const*) db/dbformat.h:757
    https://github.com/facebook/rocksdb/issues/5 0x7f7331f661ee in rocksdb::IterKey::SetInternalKey(rocksdb::Slice const&, unsigned long, rocksdb::ValueType, rocksdb::Slice const*) db/dbformat.h:776
    https://github.com/facebook/rocksdb/issues/6 0x7f73323039ff in rocksdb::DBIter::SetSavedKeyToSeekTarget(rocksdb::Slice const&) db/db_iter.cc:1462
    https://github.com/facebook/rocksdb/issues/7 0x7f7332304eb8 in rocksdb::DBIter::Seek(rocksdb::Slice const&) db/db_iter.cc:1540
    https://github.com/facebook/rocksdb/issues/8 0x7f7331d94abd in rocksdb::ArenaWrappedDBIter::Seek(rocksdb::Slice const&) (/data/users/jewoongh/rocksdb/librocksdb.so.9.4+0x1394abd)
    https://github.com/facebook/rocksdb/issues/9 0x7f73320f1a52 in rocksdb::MultiCfIteratorImpl::Seek(rocksdb::Slice const&)::{lambda(rocksdb::Iterator*)https://github.com/facebook/rocksdb/issues/2}::operator()(rocksdb::Iterator*) const db/multi_cf_iterator_impl.h:73
    https://github.com/facebook/rocksdb/issues/10 0x7f73320fccf0 in void rocksdb::MultiCfIteratorImpl::SeekCommon<rocksdb::BinaryHeap<rocksdb::MultiCfIteratorInfo, rocksdb::MultiCfIteratorImpl::MultiCfHeapItemComparator<std::greater<int> > >, rocksdb::MultiCfIteratorImpl::Seek(rocksdb::Slice const&)::{lambda(rocksdb::Iterator*)https://github.com/facebook/rocksdb/issues/2}>(rocksdb::BinaryHeap<rocksdb::MultiCfIteratorInfo, rocksdb::MultiCfIteratorImpl::MultiCfHeapItemComparator<std::greater<int> > >&, rocksdb::MultiCfIteratorImpl::Seek(rocksdb::Slice const&)::{lambda(rocksdb::Iterator*)https://github.com/facebook/rocksdb/issues/2}) (/data/users/jewoongh/rocksdb/librocksdb.so.9.4+0x16fccf0)
    https://github.com/facebook/rocksdb/issues/11 0x7f73320f1a93 in rocksdb::MultiCfIteratorImpl::Seek(rocksdb::Slice const&) db/multi_cf_iterator_impl.h:73
    https://github.com/facebook/rocksdb/issues/12 0x7f73320f1dbe in rocksdb::MultiCfIteratorImpl::Next()::{lambda()https://github.com/facebook/rocksdb/issues/1}::operator()() const db/multi_cf_iterator_impl.h:90
    https://github.com/facebook/rocksdb/issues/13 0x7f73320fe159 in rocksdb::BinaryHeap<rocksdb::MultiCfIteratorInfo, rocksdb::MultiCfIteratorImpl::MultiCfHeapItemComparator<std::greater<int> > >& rocksdb::MultiCfIteratorImpl::GetHeap<rocksdb::BinaryHeap<rocksdb::MultiCfIteratorInfo, rocksdb::MultiCfIteratorImpl::MultiCfHeapItemComparator<std::greater<int> > >, rocksdb::MultiCfIteratorImpl::Next()::{lambda()https://github.com/facebook/rocksdb/issues/1}>(rocksdb::MultiCfIteratorImpl::Next()::{lambda()https://github.com/facebook/rocksdb/issues/1}) (/data/users/jewoongh/rocksdb/librocksdb.so.9.4+0x16fe159)
    https://github.com/facebook/rocksdb/issues/14 0x7f73320f1ec9 in rocksdb::MultiCfIteratorImpl::Next() db/multi_cf_iterator_impl.h:87
    https://github.com/facebook/rocksdb/issues/15 0x7f73320f3255 in rocksdb::CoalescingIterator::Next() db/coalescing_iterator.h:34
    https://github.com/facebook/rocksdb/issues/16 0x66f28a in TestIterateImpl<rocksdb::Iterator, rocksdb::StressTest::TestIterate(rocksdb::ThreadState*, const rocksdb::ReadOptions&, const std::vector<int>&, const std::vector<long int>&)::<lambda(const rocksdb::ReadOptions&)>, rocksdb::StressTest::TestIterate(rocksdb::ThreadState*, const rocksdb::ReadOptions&, const std::vector<int>&, const std::vector<long int>&)::<lambda(rocksdb::Iterator*)> > db_stress_tool/db_stress_test_base.cc:1718
    https://github.com/facebook/rocksdb/issues/17 0x6440b4 in rocksdb::StressTest::TestIterate(rocksdb::ThreadState*, rocksdb::ReadOptions const&, std::vector<int, std::allocator<int> > const&, std::vector<long, std::allocator<long> > const&) db_stress_tool/db_stress_test_base.cc:1504
    https://github.com/facebook/rocksdb/issues/18 0x640cb0 in rocksdb::StressTest::OperateDb(rocksdb::ThreadState*) db_stress_tool/db_stress_test_base.cc:1376
    https://github.com/facebook/rocksdb/issues/19 0x6004f6 in rocksdb::ThreadBody(void*) db_stress_tool/db_stress_driver.cc:39
    https://github.com/facebook/rocksdb/issues/20 0x7f73327caed4 in StartThreadWrapper env/env_posix.cc:469
    https://github.com/facebook/rocksdb/issues/21 0x7f733029abc8 in start_thread /home/engshare/third-party2/glibc/2.34/src/glibc-2.34/nptl/pthread_create.c:434

previously allocated by thread T57 here:
    #0 0x7f73346d13b7 in operator new[](unsigned long) /home/engshare/third-party2/gcc/11.x/src/gcc-11.x/libsanitizer/asan/asan_new_delete.cpp:102
    https://github.com/facebook/rocksdb/issues/1 0x7f73323146c5 in rocksdb::IterKey::EnlargeBuffer(unsigned long) db/dbformat.cc:279
    https://github.com/facebook/rocksdb/issues/2 0x7f7331f33031 in rocksdb::IterKey::EnlargeBufferIfNeeded(unsigned long) db/dbformat.h:846
    https://github.com/facebook/rocksdb/issues/3 0x7f7331f65ee0 in rocksdb::IterKey::SetInternalKey(rocksdb::Slice const&, rocksdb::Slice const&, unsigned long, rocksdb::ValueType, rocksdb::Slice const*) db/dbformat.h:757
    https://github.com/facebook/rocksdb/issues/4 0x7f7331f661ee in rocksdb::IterKey::SetInternalKey(rocksdb::Slice const&, unsigned long, rocksdb::ValueType, rocksdb::Slice const*) db/dbformat.h:776
    https://github.com/facebook/rocksdb/issues/5 0x7f7332303e1e in rocksdb::DBIter::SetSavedKeyToSeekForPrevTarget(rocksdb::Slice const&) db/db_iter.cc:1479
    https://github.com/facebook/rocksdb/issues/6 0x7f7332306302 in rocksdb::DBIter::SeekForPrev(rocksdb::Slice const&) db/db_iter.cc:1615
    https://github.com/facebook/rocksdb/issues/7 0x7f7331d94b0f in rocksdb::ArenaWrappedDBIter::SeekForPrev(rocksdb::Slice const&) (/data/users/jewoongh/rocksdb/librocksdb.so.9.4+0x1394b0f)
    https://github.com/facebook/rocksdb/issues/8 0x7f73320f1c5a in rocksdb::MultiCfIteratorImpl::SeekForPrev(rocksdb::Slice const&)::{lambda(rocksdb::Iterator*)https://github.com/facebook/rocksdb/issues/2}::operator()(rocksdb::Iterator*) const db/multi_cf_iterator_impl.h:82
    https://github.com/facebook/rocksdb/issues/9 0x7f73320fdc1e in void rocksdb::MultiCfIteratorImpl::SeekCommon<rocksdb::BinaryHeap<rocksdb::MultiCfIteratorInfo, rocksdb::MultiCfIteratorImpl::MultiCfHeapItemComparator<std::less<int> > >, rocksdb::MultiCfIteratorImpl::SeekForPrev(rocksdb::Slice const&)::{lambda(rocksdb::Iterator*)https://github.com/facebook/rocksdb/issues/2}>(rocksdb::BinaryHeap<rocksdb::MultiCfIteratorInfo, rocksdb::MultiCfIteratorImpl::MultiCfHeapItemComparator<std::less<int> > >&, rocksdb::MultiCfIteratorImpl::SeekForPrev(rocksdb::Slice const&)::{lambda(rocksdb::Iterator*)https://github.com/facebook/rocksdb/issues/2}) (/data/users/jewoongh/rocksdb/librocksdb.so.9.4+0x16fdc1e)
    https://github.com/facebook/rocksdb/issues/10 0x7f73320f1c9b in rocksdb::MultiCfIteratorImpl::SeekForPrev(rocksdb::Slice const&) db/multi_cf_iterator_impl.h:81
    https://github.com/facebook/rocksdb/issues/11 0x7f73320f2002 in rocksdb::MultiCfIteratorImpl::Prev()::{lambda()https://github.com/facebook/rocksdb/issues/1}::operator()() const db/multi_cf_iterator_impl.h:99
    https://github.com/facebook/rocksdb/issues/12 0x7f73320ff223 in rocksdb::BinaryHeap<rocksdb::MultiCfIteratorInfo, rocksdb::MultiCfIteratorImpl::MultiCfHeapItemComparator<std::less<int> > >& rocksdb::MultiCfIteratorImpl::GetHeap<rocksdb::BinaryHeap<rocksdb::MultiCfIteratorInfo, rocksdb::MultiCfIteratorImpl::MultiCfHeapItemComparator<std::less<int> > >, rocksdb::MultiCfIteratorImpl::Prev()::{lambda()https://github.com/facebook/rocksdb/issues/1}>(rocksdb::MultiCfIteratorImpl::Prev()::{lambda()https://github.com/facebook/rocksdb/issues/1}) (/data/users/jewoongh/rocksdb/librocksdb.so.9.4+0x16ff223)
    https://github.com/facebook/rocksdb/issues/13 0x7f73320f210d in rocksdb::MultiCfIteratorImpl::Prev() db/multi_cf_iterator_impl.h:96
    https://github.com/facebook/rocksdb/issues/14 0x7f73320f3275 in rocksdb::CoalescingIterator::Prev() db/coalescing_iterator.h:35
    https://github.com/facebook/rocksdb/issues/15 0x66f440 in TestIterateImpl<rocksdb::Iterator, rocksdb::StressTest::TestIterate(rocksdb::ThreadState*, const rocksdb::ReadOptions&, const std::vector<int>&, const std::vector<long int>&)::<lambda(const rocksdb::ReadOptions&)>, rocksdb::StressTest::TestIterate(rocksdb::ThreadState*, const rocksdb::ReadOptions&, const std::vector<int>&, const std::vector<long int>&)::<lambda(rocksdb::Iterator*)> > db_stress_tool/db_stress_test_base.cc:1725
    https://github.com/facebook/rocksdb/issues/16 0x6440b4 in rocksdb::StressTest::TestIterate(rocksdb::ThreadState*, rocksdb::ReadOptions const&, std::vector<int, std::allocator<int> > const&, std::vector<long, std::allocator<long> > const&) db_stress_tool/db_stress_test_base.cc:1504
    https://github.com/facebook/rocksdb/issues/17 0x640cb0 in rocksdb::StressTest::OperateDb(rocksdb::ThreadState*) db_stress_tool/db_stress_test_base.cc:1376
    https://github.com/facebook/rocksdb/issues/18 0x6004f6 in rocksdb::ThreadBody(void*) db_stress_tool/db_stress_driver.cc:39
    https://github.com/facebook/rocksdb/issues/19 0x7f73327caed4 in StartThreadWrapper env/env_posix.cc:469
    https://github.com/facebook/rocksdb/issues/20 0x7f733029abc8 in start_thread /home/engshare/third-party2/glibc/2.34/src/glibc-2.34/nptl/pthread_create.c:434

Thread T57 created by T0 here:
    #0 0x7f7334642136 in __interceptor_pthread_create /home/engshare/third-party2/gcc/11.x/src/gcc-11.x/libsanitizer/asan/asan_interceptors.cpp:216
    https://github.com/facebook/rocksdb/issues/1 0x7f73327cb008 in StartThread env/env_posix.cc:479
    https://github.com/facebook/rocksdb/issues/2 0x7f733276b406 in rocksdb::CompositeEnvWrapper::StartThread(void (*)(void*), void*) env/composite_env_wrapper.h:316
    https://github.com/facebook/rocksdb/issues/3 0x7f733276b406 in rocksdb::CompositeEnvWrapper::StartThread(void (*)(void*), void*) env/composite_env_wrapper.h:316
    https://github.com/facebook/rocksdb/issues/4 0x6013d9 in rocksdb::RunStressTestImpl(rocksdb::SharedState*) db_stress_tool/db_stress_driver.cc:108
    https://github.com/facebook/rocksdb/issues/5 0x603083 in rocksdb::RunStressTest(rocksdb::SharedState*) db_stress_tool/db_stress_driver.cc:248
    https://github.com/facebook/rocksdb/issues/6 0x4e6ab3 in rocksdb::db_stress_tool(int, char**) db_stress_tool/db_stress_tool.cc:365
    https://github.com/facebook/rocksdb/issues/7 0x4e260a in main db_stress_tool/db_stress.cc:23
    https://github.com/facebook/rocksdb/issues/8 0x7f733022c656 in __libc_start_call_main ../sysdeps/nptl/libc_start_call_main.h:58
    https://github.com/facebook/rocksdb/issues/9 0x7f733022c717 in __libc_start_main_impl ../csu/libc-start.c:409
    https://github.com/facebook/rocksdb/issues/10 0x4e2530 in _start (/data/users/jewoongh/rocksdb/db_stress+0x4e2530)
```

`heap-use-after-free` was no longer happening with the same command after making the change.

Reviewed By: pdillinger

Differential Revision: D58871081

Pulled By: jaykorean

fbshipit-source-id: 0194c34ffec5f16a6556c6bf3941a27253a4ecb4
2024-06-21 11:56:10 -07:00
Peter Dillinger efba8f5b27 Respect ReadOptions::read_tier in prefetching (#12782)
Summary:
a pre-existing flaw revealed by crash test with uncache behavior. Easy fix.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12782

Test Plan: Modified unit test PrefetchTest.Basic (fails without fix)

Reviewed By: hx235

Differential Revision: D58757916

Pulled By: pdillinger

fbshipit-source-id: 23c0240c7cf0cb0b69a372f9531c07af920e09da
2024-06-19 09:53:59 -07:00
Hui Xiao 1adb935720 Inject more errors to more files in stress test (#12713)
Summary:
**Context:**
We currently have partial error injection:
- DB operation: all read, SST write
- DB open: all read, SST write, all metadata write.

This PR completes the error injection (with some limitations below):
- DB operation & open: all read, all write, all metadata write, all metadata read

**Summary:**
- Inject retryable metadata read, metadata write error concerning directory (e.g, dir sync, ) or file metadata (e.g, name, size, file creation/deletion...)
- Inject retryable errors to all major file types: random access file, sequential file, writable file
- Allow db stress test operations to handle above injected errors gracefully without crashing
- Change all error injection to thread-local implementation for easier disabling and enabling in the same thread. For example, we can control error handling thread to have no error injection. It's also cleaner in code.
   - Limitation: compared to before, we now don't have write fault injection for backup/restore CopyOrCreateFiles work threads since they use anonymous background threads as well as read injection for db open bg thread
- Add a new flag to test error recovery without error injection so we can test the path where error recovery actually succeeds
- Some Refactory & fix to db stress test framework (see PR review comments)
- Fix some minor bugs surfaced (see PR review comments)
- Limitation: had to disable backup restore with metadata read/write injection since it surfaces too many testing issues. Will add it back later to focus on surfacing actual code/internal bugs first.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12713

Test Plan:
- Existing UT
- CI with no trivial error failure

Reviewed By: pdillinger

Differential Revision: D58326608

Pulled By: hx235

fbshipit-source-id: 011b5195aaeb6011641ae0a9194f7f2a0e325ad7
2024-06-19 08:42:00 -07:00
Peter Dillinger 71f9e6b5b3 Add experimental range filters to stress/crash test (#12769)
Summary:
Implemented two key segment extractors that satisfy the "segment prefix property," one with variable segment widths and one with fixed. Used these to create a couple of named configs and versions that are randomly selected by the crash test. On the read side, the required table_filter is set up everywhere I found the stress test uses iterator_upper_bound.

Writing filters on new SST files and applying filters on SST files to range queries are configured independently, to potentially help with isolating different sides of the functionality.

Not yet implemented / possible follow-up:
* Consider manipulating/skewing the query bounds to better exercise filters
* Not yet using categories in the extractors
* Not yet dynamically changing the filtering version

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12769

Test Plan: Some stress test trial runs, including with ASAN. Inserted some temporary probes to ensure code was being exercised (more or less) as intended.

Reviewed By: hx235

Differential Revision: D58547462

Pulled By: pdillinger

fbshipit-source-id: f7b1596dd668426268c5293ac17615f749703f52
2024-06-18 16:16:09 -07:00
Jay Huh f26e2fedb3 Disable AttributeGroup in multiops txn test (#12781)
Summary:
AttributeGroup is not yet supported in MultiOpsTxn Test. Disabling it for now.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12781

Test Plan: Disabling in the test

Reviewed By: hx235

Differential Revision: D58757042

Pulled By: jaykorean

fbshipit-source-id: 8c3c85376e6ec0d1c7027b83abeb91eddc64236f
2024-06-18 16:05:18 -07:00
Hui Xiao d0259c2c98 Enable reading un-synced data in db stress test (#12752)
Summary:
**Context/Summary:**
There are a few blockers to enabling reading un-synced data in db stress test
(1) GetFileSize() will always return 0 for file written under direct IO because we don't track the last flushed position for `TestFSWritableFile` under direct IO. So it will surface as
```
Verification failed: VerifyChecksum failed: Corruption: file is too short (0 bytes) to be an sstable: /tmp/rocksdb_crashtest_blackbox4deg_c5e/000009.sst
db_stress: db_stress_tool/db_stress_test_base.cc:518: void rocksdb::StressTest::ProcessStatus(rocksdb::SharedState*, std::string, const rocksdb::Status&, bool) const: Assertion `false' failed.
Received signal 6 (Aborted)
Invoking GDB for stack trace...
```
(2) A couple minor FIXME in left in https://github.com/facebook/rocksdb/pull/12729.

This PR fixed (1) and (2) and enabled reading un-synced data in stress test.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12752

Test Plan:
- The following command failed before this PR and passed after.

```
./db_stress --WAL_size_limit_MB=1 --WAL_ttl_seconds=0 --acquire_snapshot_one_in=100 --adaptive_readahead=0 --adm_policy=0 --advise_random_on_open=1 --allow_concurrent_memtable_write=0 --allow_data_in_errors=True --allow_fallocate=1 --async_io=1 --atomic_flush=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=100000 --batch_protection_bytes_per_key=0 --bgerror_resume_retry_interval=10000 --block_align=0 --block_protection_bytes_per_key=4 --block_size=16384 --bloom_before_level=2147483647 --bloom_bits=37.92024930098943 --bottommost_compression_type=disable --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=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=1000 --compaction_pri=3 --compaction_readahead_size=0 --compaction_ttl=10 --compress_format_version=2 --compressed_secondary_cache_size=8388608 --compression_checksum=1 --compression_max_dict_buffer_bytes=0 --compression_max_dict_bytes=0 --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= --data_block_index_type=0 --db=/tmp/rocksdb_crashtest_blackbox4deg_c5e --db_write_buffer_size=0 --default_temperature=kWarm --default_write_temperature=kHot --delete_obsolete_files_period_micros=30000000 --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=1 --dump_malloc_stats=0 --enable_checksum_handoff=0 --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=1 --enable_thread_tracking=0 --enable_write_thread_adaptive_yield=0 --expected_values_dir=/tmp/rocksdb_crashtest_expected_8whyhdxm --fail_if_options_file_error=0 --fifo_allow_compaction=1 --file_checksum_impl=xxh64 --fill_cache=1 --flush_one_in=1000 --format_version=4 --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=274877906944 --high_pri_pool_ratio=0.5 --index_block_restart_interval=9 --index_shortening=0 --index_type=0 --ingest_external_file_one_in=0 --initial_auto_readahead_size=0 --inplace_update_support=0 --iterpercent=10 --key_len_percent_dist=1,30,69 --key_may_exist_one_in=100000 --last_level_temperature=kUnknown --level_compaction_dynamic_level_bytes=1 --lock_wal_one_in=100 --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=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=0 --max_manifest_file_size=1073741824 --max_sequential_skip_in_iterations=2 --max_total_wal_size=0 --max_write_batch_group_size_bytes=1048576 --max_write_buffer_number=3 --max_write_buffer_size_to_maintain=2097152 --memtable_insert_hint_per_batch=1 --memtable_max_range_deletions=100 --memtable_prefix_bloom_size_ratio=0.001 --memtable_protection_bytes_per_key=0 --memtable_whole_key_filtering=0 --memtablerep=skip_list --metadata_charge_policy=1 --min_write_buffer_number_to_merge=2 --mmap_read=0 --mock_direct_io=False --nooverwritepercent=1 --num_file_reads_for_auto_readahead=1 --open_files=-1 --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=1 --optimize_filters_for_memory=0 --optimize_multiget_for_io=0 --paranoid_file_checks=1 --partition_filters=0 --partition_pinning=1 --pause_background_one_in=1000000 --periodic_compaction_seconds=1000 --prefix_size=5 --prefixpercent=5 --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=1000 --readahead_size=16384 --readpercent=45 --recycle_log_file_num=0 --reopen=0 --report_bg_io_stats=0 --reset_stats_one_in=1000000 --sample_for_compression=5 --secondary_cache_fault_one_in=32 --secondary_cache_uri= --set_options_one_in=0 --skip_stats_update_on_db_open=0 --snapshot_hold_ops=100000 --soft_pending_compaction_bytes_limit=68719476736 --sst_file_manager_bytes_per_sec=104857600 --sst_file_manager_bytes_per_truncate=1048576 --stats_dump_period_sec=0 --stats_history_buffer_size=0 --strict_bytes_per_sync=0 --subcompactions=2 --sync=0 --sync_fault_injection=1 --table_cache_numshardbits=0 --target_file_size_base=16777216 --target_file_size_multiplier=1 --test_batches_snapshots=0 --top_level_index_pinning=0 --uncache_aggressiveness=1 --universal_max_read_amp=-1 --unpartitioned_pinning=0 --use_adaptive_mutex=0 --use_adaptive_mutex_lru=0 --use_attribute_group=1 --use_delta_encoding=1 --use_direct_io_for_flush_and_compaction=1 --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=1 --use_multiget=0 --use_put_entity_one_in=5 --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=10 --verify_compression=1 --verify_db_one_in=10000 --verify_file_checksums_one_in=10 --verify_iterator_with_expected_state_one_in=5 --verify_sst_unique_id_in_manifest=1 --wal_bytes_per_sync=0 --wal_compression=zstd --write_buffer_size=33554432 --write_dbid_to_manifest=0 --write_fault_one_in=0 --writepercent=35

Verification failed: VerifyChecksum failed: Corruption: file is too short (0 bytes) to be an sstable: /tmp/rocksdb_crashtest_blackbox4deg_c5e/000009.sst
db_stress: db_stress_tool/db_stress_test_base.cc:518: void rocksdb::StressTest::ProcessStatus(rocksdb::SharedState*, std::string, const rocksdb::Status&, bool) const: Assertion `false' failed.
Received signal 6 (Aborted)
Invoking GDB for stack trace...
```
- Run python3 tools/db_crashtest.py --simple blackbox --lock_wal_one_in=10 --backup_one_in=10 --sync_fault_injection=0 --use_direct_io_for_flush_and_compaction=0 for 1 hour
- Monitor stress test CI

Reviewed By: pdillinger

Differential Revision: D58395807

Pulled By: hx235

fbshipit-source-id: 7d4b321acc0a0af3501b62dc417a7f6e2d318265
2024-06-18 14:41:14 -07:00
Yu Zhang c73cf7a878 Add CompactForTieringCollector to support automatically trigger compaction for tiering use case (#12760)
Summary:
This PR adds user property collector factory `CompactForTieringCollectorFactory` to support observe SST file and mark it as need compaction for fast tracking data to the proper tier.

A triggering ratio `compaction_trigger_ratio_` can be configured to achieve the following:
1) Setting the ratio to be equal to or smaller than 0 disables this collector
2) Setting the ratio to be within (0, 1] will write the number of observed eligible entries into a user property and marks a file as need-compaction when aforementioned condition is met.
3) Setting the ratio to be higher than 1 can be used to just writes the user table property, and not mark any file as need compaction.
 For a column family that does not enable tiering feature, even if an effective configuration is provided, this collector is still disabled. For a file that is already on the last level, this collector is also disabled.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12760

Test Plan: Added unit tests

Reviewed By: pdillinger

Differential Revision: D58734976

Pulled By: jowlyzhang

fbshipit-source-id: 6daab2c4f62b5c6689c3c03e3b3907bbbe6b7a81
2024-06-18 10:51:29 -07:00
Jonah Gao 9f95aa8269 GetAggregatedIntProperty accumulates property once per block cache (#12755)
Summary:
Fix issue https://github.com/facebook/rocksdb/issues/12687.

A block cache may be shared by multiple column families. Therefore, when getting the aggregated property of the block cache, we need to deduplicate by instances of the block cache, meaning the same instance should only be counted once.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12755

Reviewed By: jowlyzhang

Differential Revision: D58508819

Pulled By: ajkr

fbshipit-source-id: 3b746841d7eac59f900387ec3b8c19dbcd20aae4
2024-06-18 10:46:55 -07:00
Jay Huh b8c9a2576a Add AttributeGroupIterator to Stress Test (#12776)
Summary:
As title. Changes include the following
- `Refresh()` moved from `Iterator` interface to `IteratorBase` so that `AttributeGroupIterator` can also have Refresh() API (implemention will be added in the future PR)
- `TestIterate()`'s main logic refactored into `TestIterateImpl()` so that it can be shared with `TestIterateAttributeGroups()`
- `VerifyIterator()` also changed so that verification code can be shared between `Iterator` and `AttributeGroupIterator`

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12776

Test Plan:
Single CF Iterator
```
python3 tools/db_crashtest.py blackbox --simple --max_key=25000000 --write_buffer_size=4194304 --use_attribute_group=0 --use_put_entity_one_in=1 --use_multi_get=1 --use_multi_cf_iterator=0 --verify_iterator_with_expected_state_one_in=2
```

CoalescingIterator
```
python3 tools/db_crashtest.py blackbox --simple --max_key=25000000 --write_buffer_size=4194304 --use_attribute_group=0 --use_put_entity_one_in=1 --use_multi_get=1 --use_multi_cf_iterator=1 --verify_iterator_with_expected_state_one_in=2
```

AttributeGroupIterator
```
python3 tools/db_crashtest.py blackbox --simple --max_key=25000000 --write_buffer_size=4194304 --use_attribute_group=1 --use_put_entity_one_in=1 --use_multi_get=1 --use_multi_cf_iterator=1 --verify_iterator_with_expected_state_one_in=2
```

Reviewed By: cbi42

Differential Revision: D58626165

Pulled By: jaykorean

fbshipit-source-id: 3e0a6ff72e51ecef9e06b65acfa53605a24d742e
2024-06-17 11:25:30 -07:00
Peter Dillinger 3758e31f3f Fix rare failure in DBBlockCacheTypeTest.Uncache (#12775)
Summary:
Following up on https://github.com/facebook/rocksdb/issues/12748 after seeing recurrence in https://github.com/facebook/rocksdb/actions/runs/9522985253/job/26253605587?pr=12774

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12775

Test Plan: Was able to reproduce failure and verify fix this time using COERCE_CONTEXT_SWITCH=1 :)

Reviewed By: jowlyzhang

Differential Revision: D58623461

Pulled By: pdillinger

fbshipit-source-id: d93a5e6a4977675eac54bbd42e70ae7b29b950a4
2024-06-14 20:50:36 -07:00
Peter Dillinger d6979bda40 Verify public headers do not reference internal ones (#12774)
Summary:
This is not currently caught by our public CI so adding a form of this check to `make check-headers`, which is part of the build-linux-unity-and-headers GHA job.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12774

Test Plan: manually added a violation, which was caught. Also caught an existing trivial violation (fixed). CI will verify it plays nice with GHA.

Reviewed By: jowlyzhang

Differential Revision: D58616601

Pulled By: pdillinger

fbshipit-source-id: e656ce82709660c088a3d3a5e41dd07655cb40e0
2024-06-14 16:32:28 -07:00
Jay Huh 0ab60b8a8c MultiCfIterator - Handle case of invalid key from child iter manual prefix iteration (#12773)
Summary:
Instead of completely disallowing `MultiCfIterator` when one or more child iterators will do manual prefix iteration (as suggested in https://github.com/facebook/rocksdb/issues/12770 ), just let `MultiCfIterator` operate as is even when there's a possibility of undefined result from child iterators. If one or more child iterators cause the heap to be empty, just return early and `Valid()` will return false.

It is still possible that heap is not empty when one or more child iterators are returning wrong keys. Basically, MultiCfIterator behaves the same as what we described in https://github.com/facebook/rocksdb/wiki/Prefix-Seek#manual-prefix-iterating - "RocksDB will not return error when it is misused and the iterating result will be undefined."

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12773

Test Plan:
MultiCfIterator added back to the stress test
```
python3 tools/db_crashtest.py blackbox --simple --max_key=25000000 --write_buffer_size=4194304 --use_attribute_group=0 --use_put_entity_one_in=1 --use_multi_get=1 --use_multi_cf_iterator=1 --verify_iterator_with_expected_state_one_in=2
```

Reviewed By: cbi42

Differential Revision: D58612055

Pulled By: jaykorean

fbshipit-source-id: e0dd942bed98382c59d463412dd8f163e6790b93
2024-06-14 15:59:17 -07:00
Yu Zhang f5e44f3490 Fix manual flush hanging on waiting for no stall for UDT in memtable … (#12771)
Summary:
This PR fix a possible manual flush hanging scenario because of its expectation that others will clear out excessive memtables was not met. The root cause is the FlushRequest rescheduling logic is using a stricter criteria for what a write stall is about to happen means than `WaitUntilFlushWouldNotStallWrites` does. Currently, the former thinks a write stall is about to happen when the last memtable is half full, and it will instead reschedule queued FlushRequest and not actually proceed with the flush. While the latter thinks if we already start to use the last memtable, we should wait until some other background flush jobs clear out some memtables before proceed this manual flush.

If we make them use the same criteria, we can guarantee that at any time when`WaitUntilFlushWouldNotStallWrites` is waiting, it's not because the rescheduling logic is holding it back.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12771

Test Plan: Added unit test

Reviewed By: ajkr

Differential Revision: D58603746

Pulled By: jowlyzhang

fbshipit-source-id: 9fa1c87c0175d47a40f584dfb1b497baa576755b
2024-06-14 13:37:37 -07:00
Yu Zhang 13c758f986 Change the behavior of manual flush to not retain UDT (#12737)
Summary:
When user-defined timestamps in Memtable only feature is enabled, all scheduled flushes go through a check to see if it's eligible to be rescheduled to retain user-defined timestamps. However when the user makes a manual flush request, their intention is for all the in memory data to be persisted into SST files as soon as possible. These two sides have some conflict of interest, the user can implement some workaround like https://github.com/facebook/rocksdb/issues/12631 to explicitly mark which one takes precedence. The implementation for this can be nuanced since the user needs to be aware of all the scenarios that can trigger a manual flush and handle the concurrency well etc.

In this PR, we updated the default behavior to give manual flush precedence when it's requested. The user-defined timestamps rescheduling mechanism is turned off when a manual flush is requested. Likewise, all error recovery triggered flushes skips the rescheduling mechanism too.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12737

Test Plan: Add unit tests

Reviewed By: ajkr

Differential Revision: D58538246

Pulled By: jowlyzhang

fbshipit-source-id: 0b9b3d1af3e8d882f2d6a2406adda19324ba0694
2024-06-13 13:18:10 -07:00
Richard Barnes a8dd15ad41 Fix deprecated dynamic exception in internal_repo_rocksdb/repo/java/rocksjni/kv_helper.h +1
Summary:
LLVM has detected a violation of `-Wdeprecated-dynamic-exception-spec`. Dynamic exceptions were removed in C++17. This diff fixes the deprecated instance(s).

See [Dynamic exception specification](https://en.cppreference.com/w/cpp/language/except_spec) and [noexcept specifier](https://en.cppreference.com/w/cpp/language/noexcept_spec).

Reviewed By: palmje

Differential Revision: D58528375

fbshipit-source-id: 130fecd3aa556e4cdb955feea53c442bd9fbc864
2024-06-13 12:41:13 -07:00
mingwei 762031531d add gtags files ignore (#12747)
Summary:
add 3 files ignore:
1.GPATH
2.GRTAGS
3.GTAGS

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12747

Reviewed By: jowlyzhang

Differential Revision: D58448441

Pulled By: ajkr

fbshipit-source-id: 245de6ba5ab26e2a592f33665a3a82d5624fd503
2024-06-12 21:46:40 -07:00
Peter Dillinger abf9ebc4bf Remove redundant no_io parameters to filter functions (#12762)
Summary:
Consolidate on already-present ReadOptions::read_tier

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12762

Test Plan: existing tests

Reviewed By: hx235

Differential Revision: D58450516

Pulled By: pdillinger

fbshipit-source-id: 1eec58c60beca73c6d5f2e9ae4442644920f8c30
2024-06-12 18:47:11 -07:00
Peter Dillinger 3abcba8470 Propagate more ReadOptions to ApproximateOffsetOf/Sizes (#12764)
Summary:
Unknown why these would ignore options like deadline and read_tier. Setting total_order_seek=true is unnecessary because of the disable_prefix_seek (= true) parameter to NewIndexIterator. This is only used by the hash index, which uses total order seek if either the ReadOption or the parameter is true. The parameter is arguably redundant with the total_order_seek option, meaning it could be eliminated, but I think this case is exceptional (compared to e.g. no_io):
* Prefix seek is particular to user iterators, though might be usable, carefully, for other read operations.
* The historical default of total_order_seek=false in a sense is "wrong result by default" so cannot be interpreted as an intent to force prefix seek in an operation for which it might be usual or give bad results.

Also added a generic release note to cover this and related PRs.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12764

Test Plan: existing tests

Reviewed By: hx235

Differential Revision: D58474240

Pulled By: pdillinger

fbshipit-source-id: 79014d9822ba8f09d57ce4524363aa0973017b68
2024-06-12 16:25:47 -07:00
Peter Dillinger 5cf3bed00f Eliminate some parameters redundant with ReadOptions (#12761)
Summary:
... in Index and CompressionDict readers (Filters in another PR). no_io and verify_checksums should be inferred from ReadOptions rather than specified redundantly.

Fixes incomplete propagation of ReadOptions in
UncompressionDictReader::GetOrReadUncompressionDictionar so is technically a functional change. (Related to https://github.com/facebook/rocksdb/issues/12757)

Also there was hardcoded no verify_checksums in DumpTable, but only for UncompressionDict, which doesn't make sense. Now using consistent ReadOptions and verify_checksum can be controlled for more reads together.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12761

Test Plan: existing tests

Reviewed By: hx235

Differential Revision: D58450392

Pulled By: pdillinger

fbshipit-source-id: 0faed22832d664cb3b04a4c03ee77119977c200b
2024-06-12 15:44:37 -07:00
Hui Xiao a2f772910e Fix manual WAL flush causing false-positive inconsistent values in TestBackupRestore() (#12758)
Summary:
**Context/Summary:**
When manual WAL flush is used, the following can happen:

t1: Issued Put(k1) to original DB. It entered WAL buffer since manual_wal_flush_one_in > 0. It never made it to WAL file without FlushWAL()
t2: The same WAL got back-up and restored to restore DB. So the restore DB's WAL does not contain this Put()
t3: The same WAL in the original DB got FlushWAL() so it got the Put() entry

Querying k1 in original and restored DB will give different result and fail our consistency check in stress test.

```
Failure in a backup/restore operation with: Corruption: 0x000000000000000178 exists in original db but not in restore
```

This PR fixed it.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12758

Test Plan:
```

./db_stress --WAL_size_limit_MB=0 --WAL_ttl_seconds=0 --acquire_snapshot_one_in=10000 --adaptive_readahead=1 --adm_policy=1 --advise_random_on_open=1 --allow_concurrent_memtable_write=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=1 --avoid_unnecessary_blocking_io=0 --backup_max_size=104857600 --backup_one_in=100 --batch_protection_bytes_per_key=8 --bgerror_resume_retry_interval=1000000 --block_align=1 --block_protection_bytes_per_key=0 --block_size=16384 --bloom_before_level=2147483646 --bloom_bits=13 --bottommost_compression_type=none --bottommost_file_compaction_delay=600 --bytes_per_sync=262144 --cache_index_and_filter_blocks=0 --cache_index_and_filter_blocks_with_high_priority=0 --cache_size=33554432 --cache_type=auto_hyper_clock_cache --charge_compression_dictionary_building_buffer=0 --charge_file_metadata=0 --charge_filter_construction=1 --charge_table_reader=0 --check_multiget_consistency=0 --check_multiget_entity_consistency=1 --checkpoint_one_in=1000000 --checksum_type=kxxHash --clear_column_family_one_in=0 --column_families=1 --compact_files_one_in=1000 --compact_range_one_in=1000000 --compaction_pri=3 --compaction_readahead_size=0 --compaction_ttl=0 --compress_format_version=1 --compressed_secondary_cache_size=8388608 --compression_checksum=0 --compression_max_dict_buffer_bytes=0 --compression_max_dict_bytes=0 --compression_parallel_threads=4 --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_test/rocksdb_crashtest_blackbox_1 --db_write_buffer_size=0 --default_temperature=kCold --default_write_temperature=kHot --delete_obsolete_files_period_micros=21600000000 --delpercent=40 --delrangepercent=0 --destroy_db_initially=0 --detect_filter_construct_corruption=1 --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=1 --enable_do_not_compress_roles=1 --enable_index_compression=0 --enable_memtable_insert_with_hint_prefix_extractor=0 --enable_pipelined_write=0 --enable_sst_partitioner_factory=1 --enable_thread_tracking=0 --enable_write_thread_adaptive_yield=1 --expected_values_dir=/dev/shm/rocksdb_test/rocksdb_crashtest_expected_1 --fail_if_options_file_error=1 --fifo_allow_compaction=1 --file_checksum_impl=none --fill_cache=0 --flush_one_in=1000000 --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=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=5 --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=kUnknown --level_compaction_dynamic_level_bytes=1 --lock_wal_one_in=0 --log_file_time_to_roll=60 --log_readahead_size=16777216 --long_running_snapshots=0 --low_pri_pool_ratio=0.5 --lowest_used_cache_tier=1 --manifest_preallocation_size=5120 --manual_wal_flush_one_in=100 --mark_for_compaction_one_file_in=10 --max_auto_readahead_size=524288 --max_background_compactions=1 --max_bytes_for_level_base=67108864 --max_key=10 --max_key_len=3 --max_log_file_size=0 --max_manifest_file_size=1073741824 --max_sequential_skip_in_iterations=16 --max_total_wal_size=0 --max_write_batch_group_size_bytes=64 --max_write_buffer_number=10 --max_write_buffer_size_to_maintain=2097152 --memtable_insert_hint_per_batch=1 --memtable_max_range_deletions=0 --memtable_prefix_bloom_size_ratio=0.1 --memtable_protection_bytes_per_key=1 --memtable_whole_key_filtering=0 --memtablerep=skip_list --metadata_charge_policy=1 --min_write_buffer_number_to_merge=1 --mmap_read=1 --mock_direct_io=False --nooverwritepercent=1 --num_file_reads_for_auto_readahead=0 --open_files=-1 --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=0 --optimize_multiget_for_io=1 --paranoid_file_checks=1 --partition_filters=0 --partition_pinning=0 --pause_background_one_in=1000000 --periodic_compaction_seconds=2 --prefix_size=7 --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=1000 --readahead_size=16384 --readpercent=0 --recycle_log_file_num=0 --reopen=0 --report_bg_io_stats=0 --reset_stats_one_in=10000 --sample_for_compression=0 --secondary_cache_fault_one_in=0 --secondary_cache_uri= --set_options_one_in=0 --skip_stats_update_on_db_open=1 --snapshot_hold_ops=100000 --soft_pending_compaction_bytes_limit=68719476736 --sst_file_manager_bytes_per_sec=0 --sst_file_manager_bytes_per_truncate=0 --stats_dump_period_sec=600 --stats_history_buffer_size=0 --strict_bytes_per_sync=1 --subcompactions=2 --sync=0 --sync_fault_injection=1 --table_cache_numshardbits=-1 --target_file_size_base=16777216 --target_file_size_multiplier=1 --test_batches_snapshots=0 --top_level_index_pinning=2 --uncache_aggressiveness=709 --universal_max_read_amp=0 --unpartitioned_pinning=0 --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=0 --use_put_entity_one_in=0 --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=0 --verify_db_one_in=100000 --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=335544 --write_dbid_to_manifest=1 --write_fault_one_in=128 --writepercent=45
```
Repro-ed quickly before the fix and stably run after the fix.

Reviewed By: jowlyzhang

Differential Revision: D58426535

Pulled By: hx235

fbshipit-source-id: 611e56086e76f8c06d292624e60fd96e511ce723
2024-06-12 12:17:45 -07:00
Peter Dillinger 0646ec6e2d Ensure Close() before LinkFile() for WALs in Checkpoint (#12734)
Summary:
POSIX semantics for LinkFile (hard links) allow linking a file
that is still being written two, with both the source and destination
showing any subsequent writes to the source. This may not be practical
semantics for some FileSystem implementations such as remote storage.
They might only link the flushed or sync-ed file contents at time of
LinkFile, or might even have undefined behavior if LinkFile is called on
a file still open for write (not yet "sealed"). This change builds on https://github.com/facebook/rocksdb/issues/12731
to bring more hygiene to our handling of WAL files in Checkpoint.

Specifically, we now Close WAL files as soon as they are either
(a) inactive and fully synced, or (b) inactive and obsolete (so maybe
never fully synced), rather than letting Close() happen in handling
obsolete files (maybe a background thread). This should not be a
performance issue as Close() should be trivial cost relative to other
IO ops, but just in case:
* We don't Close() while holding a mutex, to avoid blocking, and
* The old behavior is available with a new kill switch option
  `background_close_inactive_wals`.

Stacked on https://github.com/facebook/rocksdb/issues/12731

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12734

Test Plan:
Extended existing unit test, especially adding a hygiene
check to FaultInjectionTestFS to detect LinkFile() on a file still open
for writes. FaultInjectionTestFS already has relevant tracking data, and
tests can opt out of the new check, as in a smoke test I have left for
the old, deprecated functionality `background_close_inactive_wals=true`.

Also ran lengthy blackbox_crash_test to ensure the hygiene check is OK
with the crash test. (The only place I can find we use LinkFile in
production is Checkpoint.)

Reviewed By: cbi42

Differential Revision: D58295284

Pulled By: pdillinger

fbshipit-source-id: 64d90ed8477e2366c19eaf9c4c5ad60b82cac5c6
2024-06-12 11:48:45 -07:00
Peter Dillinger d64eac28d3 Fix a failure to propagate ReadOptions (#12757)
Summary:
The crash test revealed a case in which the uncache functionality in ~BlockBasedTableReader could initiate an block read (IO), despite setting ReadOptions::read_tier = kBlockCacheTier.

The root cause is a place in the code where many people have over time decided to opt-in propagating ReadOptions and no one took the initiative to propagate ReadOptions by default (opt out / override only as needed). The fix is in partitioned_index_reader.cc. Here,
ReadOptions::readahead_size is opted-out to avoid churn in prefetch_test that is not clearly an improvement or regression. It's hard to tell given the poor state of relevant documentation https://github.com/facebook/rocksdb/issues/12756. The affected unit test was added in https://github.com/facebook/rocksdb/issues/10602.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12757

Test Plan: (Now postponed to a follow-up diff) I have added some new infrastructure to DEBUG builds to catch this specific kind of violation in unit tests and in the stress/crash test. `EnforceReadOpts` establishes a thread-local context under which we assert no IOs are performed if ReadOptions said it should be forbidden. With this new checking, the Uncache unit test would catch the critical step toward a violation (inner ReadOptions allowing IO, even if no IO is actually performed), which is fixed with the production code change.

Reviewed By: hx235

Differential Revision: D58421526

Pulled By: pdillinger

fbshipit-source-id: 9e9917a0e320c78967e751bd887926a2ed231d37
2024-06-11 21:41:21 -07:00
Peter Dillinger 961468f92e Fix TSAN-reported data race with uncache_aggressiveness (#12753)
Summary:
Data race reported on
BlockBasedTableReader::Rep::uncache_aggressiveness because apparently a file can be marked obsolete through multiple table cache references in parallel. Using a relaxed atomic should resolve the race quite reasonably, especially considering this is a rare case and the racing writes should be storing the same value anyway.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12753

Test Plan: watch for TSAN crash test results

Reviewed By: ltamasi

Differential Revision: D58397473

Pulled By: pdillinger

fbshipit-source-id: 3e78b6adac4f7a7056790754bee42b3cb244f037
2024-06-11 16:53:13 -07:00
Peter Dillinger 21eb82ebec Disable "uncache" behavior in DB shutdown (#12751)
Summary:
Crash test showed a potential use-after-free where a file marked as obsolete and eligible for uncache on destruction is destroyed in the VersionSet destructor, which only happens as part of DB shutdown. At that point, the in-memory column families have already been destroyed, so attempting to uncache could use-after-free on stuff like getting the `user_comparator()` from the `internal_comparator()`.

I attempted to make it smarter, but wasn't able to untangle the destruction dependencies in a way that was safe, understandable, and maintainable.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12751

Test Plan:
Reproduced by adding uncache_aggressiveness to an existing (but otherwise unrelated) test. This makes it a fair regression test.

Also added testing to ensure that trivial moves and DB close & reopen are well behaved with uncache_aggressiveness. Specifically, this issue doesn't seem to be because things are uncached inappropriately in those cases.

Reviewed By: ltamasi

Differential Revision: D58390058

Pulled By: pdillinger

fbshipit-source-id: 66ac9cb13bf02638fa80ee5b7218153d8bc7cfd3
2024-06-11 15:57:40 -07:00
Evan Jones af50823069 c.h: Add set_track_and_verify_wals_in_manifest to C API (#12749)
Summary:
This option is recommended to be set for production use:

    We recommend to set track_and_verify_wals_in_manifest to true
    for production

https://github.com/facebook/rocksdb/wiki/Track-WAL-in-MANIFEST

This adds this setting to the C API, so it can be used by other languages.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12749

Reviewed By: ltamasi

Differential Revision: D58382892

Pulled By: ajkr

fbshipit-source-id: 885de4539745a3119b6b2a162ab4fca9fa975283
2024-06-10 16:26:52 -07:00
Peter Dillinger 68112b3beb Attempt fix rare failure in DBBlockCacheTypeTest.Uncache (#12748)
Summary:
I haven't been able to reproduce the failure, seen in https://github.com/facebook/rocksdb/actions/runs/9420830905/job/25953696902?pr=12734

```
[ RUN      ] DBBlockCacheTypeTestInstance/DBBlockCacheTypeTest.Uncache/2
db/db_block_cache_test.cc:1415: Failure
Expected equality of these values:
  cache->GetOccupancyCount()
    Which is: 37
  kBaselineCount + kNumDataBlocks + meta_blocks_per_file
    Which is: 15
Google Test trace:
db/db_block_cache_test.cc:1346: ua=10000
db/db_block_cache_test.cc:1344: partitioned=1
db/db_block_cache_test.cc:1418: Failure
...
```

But it's consistent with a SuperVersion reference sticking around beyond the CompactRange, as I can reproduce the result with a dangling Iterator. Like some other tests have had trouble with periodic stats popping up randomly, I suspect that could be the explanation in this case.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12748

Test Plan: Watch for similar future failures

Reviewed By: ltamasi

Differential Revision: D58366031

Pulled By: pdillinger

fbshipit-source-id: b812ca8837b8c8b9cbda1b201d76316d145fa3ec
2024-06-10 13:31:46 -07:00
Hui Xiao d3c4b7fe0b Enable reopen with un-synced data loss in crash test (#12746)
Summary:
**Context/Summary:**
https://github.com/facebook/rocksdb/pull/12567 disabled reopen with un-synced data loss in crash test since we discovered un-synced WAL loss and we currently don't support prefix recovery in reopen. This PR explicitly sync WAL data before close to avoid such data loss case from happening and add back the testing coverage.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12746

Test Plan: CI

Reviewed By: ajkr

Differential Revision: D58326890

Pulled By: hx235

fbshipit-source-id: 0865f715e97c5948d7cb3aea62fe2a626cb6522a
2024-06-10 12:35:53 -07:00
Eduardo Menges Mattje 43906597f5 Fixed CMake builds for iOS (#12744)
Summary:
This [ports the flags which were already defined in `build_tools`](44aceb88d0/build_tools/build_detect_platform (L151)) for CMake.

The flag `OS_MACOSX` in specific is necessary for proper endiness detection, [since they're required for proper inclusion of OSX endian header](44aceb88d0/port/port_posix.h (L27)).

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12744

Reviewed By: ltamasi

Differential Revision: D58317987

Pulled By: ajkr

fbshipit-source-id: 407e623ddb6afc9c48939d52f610281f59cf99af
2024-06-07 22:13:49 -07:00
Evan Jones 32e6825bc6 c.h: Add GetDbIdentity, Options::write_dbid_to_manifest (#12736)
Summary:
The write_dbid_to_manifest option is documented as "We recommend setting this flag to true". However, there is no way to set this flag from the C API.

Add the following functions to the C API:

* rocksdb_get_db_identity
* rocksdb_options_get_write_dbid_to_manifest
* rocksdb_options_set_write_dbid_to_manifest

Add a test that this option preserves the ID across checkpoints.

c.cc:
* Remove outdated comments about missing C API functions that exist.
* Document that CopyString is intended for binary data and is not NUL terminated.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12736

Reviewed By: ltamasi

Differential Revision: D58202117

Pulled By: ajkr

fbshipit-source-id: 707b110df5c4bd118d65548327428a53a9dc3019
2024-06-07 16:53:43 -07:00
Peter Dillinger b34cef57b7 Support pro-actively erasing obsolete block cache entries (#12694)
Summary:
Currently, when files become obsolete, the block cache entries associated with them just age out naturally. With pure LRU, this is not too bad, as once you "use" enough cache entries to (re-)fill the cache, you are guranteed to have purged the obsolete entries. However, HyperClockCache is a counting clock cache with a somewhat longer memory, so could be more negatively impacted by previously-hot cache entries becoming obsolete, and taking longer to age out than newer single-hit entries.

Part of the reason we still have this natural aging-out is that there's almost no connection between block cache entries and the file they are associated with. Everything is hashed into the same pool(s) of entries with nothing like a secondary index based on file. Keeping track of such an index could be expensive.

This change adds a new, mutable CF option `uncache_aggressiveness` for erasing obsolete block cache entries. The process can be speculative, lossy, or unproductive because not all potential block cache entries associated with files will be resident in memory, and attempting to remove them all could be wasted CPU time. Rather than a simple on/off switch, `uncache_aggressiveness` basically tells RocksDB how much CPU you're willing to burn trying to purge obsolete block cache entries. When such efforts are not sufficiently productive for a file, we stop and move on.

The option is in ColumnFamilyOptions so that it is dynamically changeable for already-open files, and customizeable by CF.

Note that this block cache removal happens as part of the process of purging obsolete files, which is often in a background thread (depending on `background_purge_on_iterator_cleanup` and `avoid_unnecessary_blocking_io` options) rather than along CPU critical paths.

Notable auxiliary code details:
* Possibly fixing some issues with trivial moves with `only_delete_metadata`: unnecessary TableCache::Evict in that case and missing from the ObsoleteFileInfo move operator. (Not able to reproduce an current failure.)
* Remove suspicious TableCache::Erase() from VersionSet::AddObsoleteBlobFile() (TODO follow-up item)

Marked EXPERIMENTAL until more thorough validation is complete.

Direct stats of this functionality are omitted because they could be misleading. Block cache hit rate is a better indicator of benefit, and CPU profiling a better indicator of cost.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12694

Test Plan:
* Unit tests added, including refactoring an existing test to make better use of parameterized tests.
* Added to crash test.
* Performance, sample command:
```
for I in `seq 1 10`; do for UA in 300; do for CT in lru_cache fixed_hyper_clock_cache auto_hyper_clock_cache; do rm -rf /dev/shm/test3; TEST_TMPDIR=/dev/shm/test3 /usr/bin/time ./db_bench -benchmarks=readwhilewriting -num=13000000 -read_random_exp_range=6 -write_buffer_size=10000000 -bloom_bits=10 -cache_type=$CT -cache_size=390000000 -cache_index_and_filter_blocks=1 -disable_wal=1 -duration=60 -statistics -uncache_aggressiveness=$UA 2>&1 | grep -E 'micros/op|rocksdb.block.cache.data.(hit|miss)|rocksdb.number.keys.(read|written)|maxresident' | awk '/rocksdb.block.cache.data.miss/ { miss = $4 } /rocksdb.block.cache.data.hit/ { hit = $4 } { print } END { print "hit rate = " ((hit * 1.0) / (miss + hit)) }' | tee -a results-$CT-$UA; done; done; done
```

Averaging 10 runs each case, block cache data block hit rates

```
lru_cache
UA=0   -> hit rate = 0.327, ops/s = 87668, user CPU sec = 139.0
UA=300 -> hit rate = 0.336, ops/s = 87960, user CPU sec = 139.0

fixed_hyper_clock_cache
UA=0   -> hit rate = 0.336, ops/s = 100069, user CPU sec = 139.9
UA=300 -> hit rate = 0.343, ops/s = 100104, user CPU sec = 140.2

auto_hyper_clock_cache
UA=0   -> hit rate = 0.336, ops/s = 97580, user CPU sec = 140.5
UA=300 -> hit rate = 0.345, ops/s = 97972, user CPU sec = 139.8
```

Conclusion: up to roughly 1 percentage point of improved block cache hit rate, likely leading to overall improved efficiency (because the foreground CPU cost of cache misses likely outweighs the background CPU cost of erasure, let alone I/O savings).

Reviewed By: ajkr

Differential Revision: D57932442

Pulled By: pdillinger

fbshipit-source-id: 84a243ca5f965f731f346a4853009780a904af6c
2024-06-07 08:57:11 -07:00
Yu Zhang 44aceb88d0 Add a OnManualFlushScheduled callback in event listener (#12631)
Summary:
As titled. Also added the newest user-defined timestamp into the `MemTableInfo`. This can be a useful info in the callback.

Added some unit tests as examples for how users can use two separate approaches to allow manual flush / manual compactions to go through when the user-defined timestamps in memtable only feature is enabled. One approach relies on selectively increase cutoff timestamp in `OnMemtableSeal` callback when it's initiated by a manual flush. Another approach is to increase cutoff timestamp in `OnManualFlushScheduled` callback. The caveats of the approaches are also documented in the unit test.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12631

Reviewed By: ajkr

Differential Revision: D58260528

Pulled By: jowlyzhang

fbshipit-source-id: bf446d7140affdf124744095e0a179fa6e427532
2024-06-06 17:29:01 -07:00
Hui Xiao 390fc55ba1 Revert PR 12684 and 12556 (#12738)
Summary:
**Context/Summary:** a better API design is decided lately so we decided to revert these two changes.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12738

Test Plan: - CI

Reviewed By: ajkr

Differential Revision: D58162165

Pulled By: hx235

fbshipit-source-id: 9bbe4d2fe9fbe39213f4cf137a2d419e6ffb8e16
2024-06-06 11:46:16 -07:00
Peter Dillinger 98393f0139 Fix Checkpoint hard link of inactive but unsynced WAL (#12731)
Summary:
Background: there is one active WAL file but there can be
several more WAL files in various states. Those other WALs are always
in a "flushed" state but could be on the `logs_` list not yet fully
synced. We currently allow any WAL that is not the active WAL to be
hard-linked when creating a Checkpoint, as although it might still be
open for write, we are not appending any more data to it.

The problem is that a created Checkpoint is supposed to be fully synced
on return of that function, and a hard-linked WAL in the state described
above might not be fully synced. (Through some prudence in https://github.com/facebook/rocksdb/issues/10083,
it would synced if using track_and_verify_wals_in_manifest=true.)

The fix is a step toward a long term goal of removing the need to query
the filesystem to determine WAL files and their state. (I consider it
dubious any time we independently read from or query metadata from a
file we have open for writing, as this makes us more susceptible to
FileSystem deficiencies or races.) More specifically:
* Detect which WALs might not be fully synced, according to our DBImpl
  metadata, and prevent hard linking those (with `trim_to_size=true`
  from `GetLiveFilesStorageInfo()`. And while we're at it, use our known
  flushed sizes for those WALs.
* To avoid a race between that and GetSortedWalFiles(), track a maximum
  needed WAL number for the Checkpoint/GetLiveFilesStorageInfo.
* Because of the level of consistency provided by those two, we no
  longer need to consider syncing as part of the FlushWAL in
  GetLiveFilesStorageInfo. (We determine the max WAL number consistent
  with the manifest file size, while holding DB mutex. Should make
  track_and_verify_wals_in_manifest happy.) This makes the premise of
  test PutRaceWithCheckpointTrackedWalSync obsolete (sync point callback
  no longer hit) so the test is removed, with crash test as backstop for
  related issues. See https://github.com/facebook/rocksdb/issues/10185

Stacked on https://github.com/facebook/rocksdb/issues/12729

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12731

Test Plan:
Expanded an existing test, which now fails before fix.
Also long runs of blackbox_crash_test with amplified checkpoint frequency.

Reviewed By: cbi42

Differential Revision: D58199629

Pulled By: pdillinger

fbshipit-source-id: 376e55f4a2b082cd2adb6408a41209de14422382
2024-06-05 17:40:09 -07:00
Adam Kupczyk a211e06552 Remove close when fd == -1. (#12732)
Summary:
Its polluting my valgrind runs:
==3733139== Warning: invalid file descriptor -1 in syscall close()
==3733139== Warning: invalid file descriptor -1 in syscall close()
==3733139== Warning: invalid file descriptor -1 in syscall close()

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12732

Reviewed By: ltamasi

Differential Revision: D58170009

Pulled By: ajkr

fbshipit-source-id: 1fc6944c2667641996676a75aa3e91984070ba49
2024-06-05 12:52:48 -07:00
wuruilong 61d10fe0c3 Fix compile errors on loongarch (#12739)
Summary:
Failed to compile when using cmake on loongarch architecture with the following error details:[https://buildd.debian.org/status/fetch.php?pkg=rocksdb&arch=loong64&ver=9.2.1-2&stamp= 1717362107&raw=0](url). The reason for the error is that loongarch does not support the mcpu option, refer to the link for details: [https://gcc.gnu.org/onlinedocs/gcc-13.2.0/gcc/LoongArch-Options.html](url)

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12739

Reviewed By: ltamasi

Differential Revision: D58200695

Pulled By: ajkr

fbshipit-source-id: 00e1a51e15defaa8983524cdd3fc25240833c08b
2024-06-05 12:46:55 -07:00
Peter Dillinger 9f4c597d83 FaultInjectionTestFS read unsynced data by default (#12729)
Summary:
In places (e.g. GetSortedWals()) RocksDB relies on querying the file size or even reading the contents of files currently open for writing, and as in POSIX semantics, expects to see the flushed size and contents regardless of what has been synced. FaultInjectionTestFS historically did not emulate this behavior, only showing synced data from such read operations. (Different from FaultInjectionTestEnv--sigh.)

This change makes the "proper" behavior the default behavior, at least for GetFileSize and FSSequentialFile. However, this new functionality is disabled in db_stress because of undiagnosed, unresolved issues.

Also removes unused and confusing field `pos_at_last_flush_`

This change is needed to support testing a relevant bug fix (in a follow-up diff).  Other suggested follow-up:
* Fix db_stress not to rely on the old behavior, and fix a related FIXME in db_stress_test_base.cc in LockWAL testing.
* Fill in some corner cases in the FileSystem API for reading unsynced data (see new TODO items).
* Consider deprecating and removing Flush() API functions from FileSystem APIs. It is not clear to me that there is a supported scenario in which they do anything but confuse API users and developers. If there is a use for them, it doesn't appear to be tested.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12729

Test Plan: applies to all unit tests successfully, just updating the unit test from https://github.com/facebook/rocksdb/issues/12556 due to relying on the errant behavior. Also added a specific unit test

Reviewed By: hx235

Differential Revision: D58091835

Pulled By: pdillinger

fbshipit-source-id: f47a63b2b000f5875b6293a98577bff663d7fd33
2024-06-04 15:25:23 -07:00