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Hui Xiao 7f5b9f40cb Fix initialization-order-fiasco in write_stall_stats.cc (#11355)
Summary:
**Context/Summary:**
As title.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11355

Test Plan:
- Ran previously failed tests and they succeed
- Perf
`./db_bench -seed=1679014417652004 -db=/dev/shm/testdb/ -statistics=false -benchmarks="fillseq[-X60]" -key_size=32 -value_size=512 -num=100000 -db_write_buffer_size=655 -target_file_size_base=655 -disable_auto_compactions=false -compression_type=none -bloom_bits=3`

Reviewed By: ajkr

Differential Revision: D44719333

Pulled By: hx235

fbshipit-source-id: 23d22f314144071d97f7106ff1241c31c0bdf08b
2023-04-05 14:42:31 -07:00
.circleci Revert enabling IO uring in db_stress (#11242) 2023-02-21 12:53:55 -08:00
.github/workflows ci: add GitHub token permissions for workflow (#10549) 2022-10-04 12:10:30 -07:00
buckifier Cleanup, improve, stress test LockWAL() (#11143) 2023-01-30 22:52:30 -08:00
build_tools Remove platform009 and default to platform010 (#11333) 2023-03-30 09:56:37 -07:00
cache Re-clarify SecondaryCache API (#11316) 2023-04-04 15:47:00 -07:00
cmake gcc-11 and cmake related cleanup (#9286) 2021-12-17 17:04:35 -08:00
coverage Remove platform009 and default to platform010 (#11333) 2023-03-30 09:56:37 -07:00
db Fix initialization-order-fiasco in write_stall_stats.cc (#11355) 2023-04-05 14:42:31 -07:00
db_stress_tool Extend the stress test coverage of MultiGetEntity (#11336) 2023-03-29 20:35:15 -07:00
docs Remove docs/Gemfile.lock and update github-pages version (#11173) 2023-02-14 12:17:23 -08:00
env Ignore async_io ReadOption if FileSystem doesn't support it (#11296) 2023-03-17 14:57:09 -07:00
examples Remove RocksDB LITE (#11147) 2023-01-27 13:14:19 -08:00
file Ignore async_io ReadOption if FileSystem doesn't support it (#11296) 2023-03-17 14:57:09 -07:00
fuzz Add some missing headers (#10519) 2022-08-11 12:45:50 -07:00
include/rocksdb Re-clarify SecondaryCache API (#11316) 2023-04-04 15:47:00 -07:00
java New stat rocksdb.{cf|db}-write-stall-stats exposed in a structural way (#11300) 2023-03-18 09:51:58 -07:00
logging Disabling some IO error assertion in EnvLogger (#11314) 2023-03-20 13:23:29 -07:00
memory Remove RocksDB LITE (#11147) 2023-01-27 13:14:19 -08:00
memtable Add `SetAllowStall()` (#11335) 2023-03-30 09:43:33 -07:00
microbench Avoid allocations/copies for large `GetMergeOperands()` results (#10458) 2022-08-04 00:42:13 -07:00
monitoring Add experimental PerfContext counters for db iterator Prev/Next/Seek* APIs (#11320) 2023-03-28 10:23:12 -07:00
options Change default block cache from 8MB to 32MB (#11350) 2023-04-04 15:33:24 -07:00
plugin Add initial CMake support to plugin (#9214) 2021-11-30 17:16:53 -08:00
port Ignore async_io ReadOption if FileSystem doesn't support it (#11296) 2023-03-17 14:57:09 -07:00
table Use user-provided ReadOptions for metadata block reads more often (#11208) 2023-04-04 16:53:14 -07:00
test_util HyperClockCache support for SecondaryCache, with refactoring (#11301) 2023-03-17 20:23:49 -07:00
third-party Meta-internal folly integration with F14FastMap (#9546) 2022-04-13 07:34:01 -07:00
tools Change default block cache from 8MB to 32MB (#11350) 2023-04-04 15:33:24 -07:00
trace_replay Fix error maybe-uninitialized #11100 (#11101) 2023-01-19 13:59:48 -08:00
util Use user-provided ReadOptions for metadata block reads more often (#11208) 2023-04-04 16:53:14 -07:00
utilities HyperClockCache support for SecondaryCache, with refactoring (#11301) 2023-03-17 20:23:49 -07:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore Git ignore .clangd/ (#10817) 2022-10-17 08:33:58 -07:00
.lgtm.yml Create lgtm.yml for LGTM.com C/C++ analysis (#4058) 2018-06-26 12:43:04 -07:00
.watchmanconfig Added .watchmanconfig file to rocksdb repo (#5593) 2019-07-19 15:00:33 -07:00
AUTHORS Update RocksDB Authors File 2017-10-18 14:42:10 -07:00
CMakeLists.txt New stat rocksdb.{cf|db}-write-stall-stats exposed in a structural way (#11300) 2023-03-18 09:51:58 -07:00
CODE_OF_CONDUCT.md Adopt Contributor Covenant 2019-08-29 23:21:01 -07:00
CONTRIBUTING.md Add Code of Conduct 2017-12-05 18:42:35 -08:00
COPYING Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
DEFAULT_OPTIONS_HISTORY.md Add Options::DisableExtraChecks, clarify force_consistency_checks (#9363) 2022-01-18 17:31:03 -08:00
DUMP_FORMAT.md First version of rocksdb_dump and rocksdb_undump. 2015-06-19 16:24:36 -07:00
HISTORY.md Use user-provided ReadOptions for metadata block reads more often (#11208) 2023-04-04 16:53:14 -07:00
INSTALL.md Add instructions for installing googlebenchmark (#11282) 2023-03-09 13:11:00 -08:00
LANGUAGE-BINDINGS.md Add grocksdb in Go language bindings (#10498) 2022-08-23 15:02:10 -07:00
LICENSE.Apache Change RocksDB License 2017-07-15 16:11:23 -07:00
LICENSE.leveldb Add back the LevelDB license file 2017-07-16 18:42:18 -07:00
Makefile Revert to LIB_MODE=static for optimized builds (#11195) 2023-02-07 11:26:55 -08:00
PLUGINS.md Add pmem-rocksdb-plugin link in PLUGINs.md (#9934) 2022-05-12 22:02:28 -07:00
README.md Remove Travis CI (#10407) 2022-07-22 20:16:45 -07:00
TARGETS New stat rocksdb.{cf|db}-write-stall-stats exposed in a structural way (#11300) 2023-03-18 09:51:58 -07:00
USERS.md Add Microsoft Bing as a user (#11270) 2023-03-15 15:29:28 -07:00
Vagrantfile Adding CentOS 7 Vagrantfile & build script 2018-02-26 15:27:17 -08:00
WINDOWS_PORT.md Update branch name in WINDOWS_PORT.md (#8745) 2021-09-01 19:26:39 -07:00
common.mk Clean up variables for temporary directory (#9961) 2022-05-06 16:38:06 -07:00
crash_test.mk Allow a custom DB cleanup command to be passed to db_crashtest.py (#10883) 2022-10-27 19:47:01 -07:00
issue_template.md Add Google Group to Issue Template 2020-01-28 14:40:37 -08:00
rocksdb.pc.in build: fix pkg-config file generation (#9953) 2022-05-30 12:46:40 -07:00
src.mk New stat rocksdb.{cf|db}-write-stall-stats exposed in a structural way (#11300) 2023-03-18 09:51:58 -07:00
thirdparty.inc Fix build jemalloc api (#5470) 2019-06-24 17:40:32 -07:00

README.md

RocksDB: A Persistent Key-Value Store for Flash and RAM Storage

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RocksDB is developed and maintained by Facebook Database Engineering Team. It is built on earlier work on LevelDB by Sanjay Ghemawat (sanjay@google.com) and Jeff Dean (jeff@google.com)

This code is a library that forms the core building block for a fast key-value server, especially suited for storing data on flash drives. It has a Log-Structured-Merge-Database (LSM) design with flexible tradeoffs between Write-Amplification-Factor (WAF), Read-Amplification-Factor (RAF) and Space-Amplification-Factor (SAF). It has multi-threaded compactions, making it especially suitable for storing multiple terabytes of data in a single database.

Start with example usage here: https://github.com/facebook/rocksdb/tree/main/examples

See the github wiki for more explanation.

The public interface is in include/. Callers should not include or rely on the details of any other header files in this package. Those internal APIs may be changed without warning.

Questions and discussions are welcome on the RocksDB Developers Public Facebook group and email list on Google Groups.

License

RocksDB is dual-licensed under both the GPLv2 (found in the COPYING file in the root directory) and Apache 2.0 License (found in the LICENSE.Apache file in the root directory). You may select, at your option, one of the above-listed licenses.