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leipeng 8109046222 secondary instance: remove unnessisary cfds_changed->count() (#13086) 
Summary:
`cfds_changed->count(cfd)` is not needed, just blind insert.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/13086

Reviewed By: hx235

Differential Revision: D64712400

Pulled By: cbi42

fbshipit-source-id: 4ef62aaa724c8397baa4ff350c16a7a8d04d7067
 		2024-10-29 11:04:20 -07:00
.circleci Enable io_uring in stress test (#12313) 2024-01-31 12:37:42 -08:00
.github More valgrind fixes (#12990) 2024-09-06 10:11:34 -07:00
buckifier internal_repo_rocksdb 2024-10-14 03:01:20 -07:00
build_tools internal_repo_rocksdb 2024-10-14 03:01:20 -07:00
cache Make simple BlockBasedTableOptions mutable (#10021) 2024-10-14 17:49:26 -07:00
cmake Fix zstd typo in cmake (#12309) 2024-02-22 14:39:05 -08:00
coverage internal_repo_rocksdb 2024-10-14 03:01:20 -07:00
db secondary instance: remove unnessisary cfds_changed->count() (#13086) 2024-10-29 11:04:20 -07:00
db_stress_tool Fix race to make BlockBasedTableOptions effectively mutable (#13082) 2024-10-25 10:24:54 -07:00
docs Java FFI blog post - Post-publication issues with images (2) (#12372) 2024-02-22 15:01:55 -08:00
env Add missing RemapFileSystem::ReopenWritableFile (#12941) 2024-09-17 13:08:25 -07:00
examples Prefer static_cast in place of most reinterpret_cast (#12308) 2024-02-07 10:44:11 -08:00
file Fix race to make BlockBasedTableOptions effectively mutable (#13082) 2024-10-25 10:24:54 -07:00
fuzz Block per key-value checksum (#11287) 2023-04-25 12:08:23 -07:00
include/rocksdb Start version 9.9.0 (#13093) 2024-10-25 13:47:29 -07:00
java Steps toward deprecating implicit prefix seek, related fixes (#13026) 2024-09-20 15:54:19 -07:00
logging Fix data race in AutoRollLogger (#12436) 2024-03-14 14:28:33 -07:00
memory Set optimize_filters_for_memory by default (#12377) 2024-04-30 08:33:31 -07:00
memtable Re-implement GetApproximateMemTableStats for skip lists (#13047) 2024-10-02 14:25:50 -07:00
microbench internal_repo_rocksdb (-8794174668376270091) (#12114) 2023-12-01 11:10:30 -08:00
monitoring Add ticker stats for read corruption retries (#12923) 2024-08-12 15:32:07 -07:00
options Fix race to make BlockBasedTableOptions effectively mutable (#13082) 2024-10-25 10:24:54 -07:00
plugin Add initial CMake support to plugin (#9214) 2021-11-30 17:16:53 -08:00
port Fix CondVar::TimedWait for Windows (#12815) 2024-07-08 21:38:21 -07:00
table Include TableProperties in the CompactionServiceResult (#13089) 2024-10-25 13:13:12 -07:00
test_util Steps toward making IDENTITY file obsolete (#13019) 2024-09-19 14:05:21 -07:00
third-party fix optimization-disabled test builds with platform010 (#11361) 2023-04-10 13:59:44 -07:00
tools Start version 9.9.0 (#13093) 2024-10-25 13:47:29 -07:00
trace_replay Remove 'virtual' when implied by 'override' (#12319) 2024-01-31 13:14:42 -08:00
unreleased_history Start version 9.9.0 (#13093) 2024-10-25 13:47:29 -07:00
util Fix Compaction Stats (#13071) 2024-10-16 19:20:37 -07:00
utilities Fix race to make BlockBasedTableOptions effectively mutable (#13082) 2024-10-25 10:24:54 -07:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore add gtags files ignore (#12747) 2024-06-12 21:46:40 -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 Correct CMake minimum required version (#13056) 2024-10-07 14:43:20 -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 Fix a HISTORY entry for 9.8.0 (#13097) 2024-10-28 21:27:42 -07:00
INSTALL.md fix out of date macos instructions in INSTALL.md (#12393) 2024-02-28 12:38:15 -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 Update folly Github hash (#13017) 2024-09-17 17:47:10 -07:00
PLUGINS.md Add encfs plugin link (#12070) 2023-11-14 07:33:21 -08:00
README.md Remove deprecated integration tests from README.md (#11354) 2023-04-07 16:52:50 -07:00
TARGETS Remove last user of AutoHeaders.RECURSIVE_GLOB 2024-09-17 13:21:57 -07:00
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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 Stress/Crash Test for OptimisticTransactionDB (#11513) 2023-06-17 16:27:37 -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 Fix folly build (#12795) 2024-06-22 15:15:02 -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

CircleCI Status

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.