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A library that provides an embeddable, persistent key-value store for fast storage.
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Java 10.3%
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Python 1.7%
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Hui Xiao de537dcaf1 Fix a comment in RateLimiter::RequestToken (#9933) 
Summary:
**Context/Summary:**
- As titled

Pull Request resolved: https://github.com/facebook/rocksdb/pull/9933

Test Plan: - No code change

Reviewed By: ajkr

Differential Revision: D36086544

Pulled By: hx235

fbshipit-source-id: 2bdd19f67e45df1e3af4121b0c1a5e866a57826d
2022-05-04 10:10:36 -07:00
.circleci Misc CI improvements / additions (#9859) 2022-04-18 20:26:37 -07:00
.github/workflows Use released clang-format instead of the one from dev branch (#9646) 2022-03-01 10:51:38 -08:00
buckifier Remove flaky servicelab metrics DBPut P95/P99 (#9844) 2022-04-15 13:56:22 -07:00
build_tools Add "no compression" job to CircleCI (#9850) 2022-04-18 12:47:16 -07:00
cache Fork and simplify LRUCache for developing enhancements (#9917) 2022-05-03 12:32:02 -07:00
cmake gcc-11 and cmake related cleanup (#9286) 2021-12-17 17:04:35 -08:00
coverage Fix commit_prereq and other targets (#9797) 2022-04-04 09:58:18 -07:00
db Fork and simplify LRUCache for developing enhancements (#9917) 2022-05-03 12:32:02 -07:00
db_stress_tool Allow consecutive SingleDelete() in stress/crash test (#9930) 2022-05-02 16:19:00 -07:00
docs Bump nokogiri from 1.13.3 to 1.13.4 in /docs (#9831) 2022-04-12 09:07:14 -07:00
env Fix bug in async_io path which reads incorrect length (#9916) 2022-04-27 22:33:29 -07:00
examples Remove BlockBasedTableOptions.hash_index_allow_collision (#9454) 2022-03-01 13:58:02 -08:00
file Fix bug in async_io path which reads incorrect length (#9916) 2022-04-27 22:33:29 -07:00
fuzz Fix compilation errors and add fuzzers to CircleCI (#9420) 2022-02-01 10:32:15 -08:00
include/rocksdb Default try_load_options to true when DB is specified (#9937) 2022-05-04 08:49:46 -07:00
java Revert open logic changes in #9634 (#9906) 2022-04-26 14:46:53 -07:00
logging Use system-wide thread ID in info log lines (#9164) 2021-11-12 19:46:06 -08:00
memory Meta-internal folly integration with F14FastMap (#9546) 2022-04-13 07:34:01 -07:00
memtable Account memory of big memory users in BlockBasedTable in global memory limit (#9748) 2022-04-06 10:33:00 -07:00
microbench db_basic_bench fix for DB object cleanup (#9939) 2022-05-03 13:38:38 -07:00
monitoring Revert open logic changes in #9634 (#9906) 2022-04-26 14:46:53 -07:00
options Misc CI improvements / additions (#9859) 2022-04-18 20:26:37 -07:00
plugin Add initial CMake support to plugin (#9214) 2021-11-30 17:16:53 -08:00
port Meta-internal folly integration with F14FastMap (#9546) 2022-04-13 07:34:01 -07:00
table Reduce comparator objects init cost in BlockIter (#9611) 2022-05-03 17:37:19 -07:00
test_util Enforce the contract of SingleDelete (#9888) 2022-04-28 14:48:27 -07:00
third-party Meta-internal folly integration with F14FastMap (#9546) 2022-04-13 07:34:01 -07:00
tools Default try_load_options to true when DB is specified (#9937) 2022-05-04 08:49:46 -07:00
trace_replay Added TraceOptions::preserve_write_order (#9334) 2021-12-28 15:04:26 -08:00
util Fix a comment in RateLimiter::RequestToken (#9933) 2022-05-04 10:10:36 -07:00
utilities Remove ifdef for try_emplace after upgrading to c++17 (#9932) 2022-05-02 19:39:24 -07:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore Meta-internal folly integration with F14FastMap (#9546) 2022-04-13 07:34:01 -07:00
.lgtm.yml Create lgtm.yml for LGTM.com C/C++ analysis (#4058) 2018-06-26 12:43:04 -07:00
.travis.yml Fix remaining uses of "backupable" (#9792) 2022-04-05 09:52:33 -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 Fork and simplify LRUCache for developing enhancements (#9917) 2022-05-03 12:32:02 -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
crash_test.mk Fix db_crashtest.py call inconsistency in crash_test.mk (#9935) 2022-05-03 12:03:57 -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 Default try_load_options to true when DB is specified (#9937) 2022-05-04 08:49:46 -07:00
INSTALL.md Update supported VS versions in INSTALL.md (#9823) 2022-04-13 13:03:40 -07:00
issue_template.md Add Google Group to Issue Template 2020-01-28 14:40:37 -08:00
LANGUAGE-BINDINGS.md Update branch name to "main" in README/LANGUAGE_BINDINGS (#8727) 2021-09-01 15:26:34 -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 Misc CI improvements / additions (#9859) 2022-04-18 20:26:37 -07:00
PLUGINS.md Move RADOS support to separate repo (#9206) 2022-01-24 22:50:07 -08:00
python.mk crash_test Makefile refactoring, add to CircleCI (#9702) 2022-03-16 15:58:06 -07:00
README.md README: De-list slack channel, list Google group (#9387) 2022-01-18 08:19:48 -08:00
ROCKSDB_LITE.md Fix remaining uses of "backupable" (#9792) 2022-04-05 09:52:33 -07:00
src.mk Fork and simplify LRUCache for developing enhancements (#9917) 2022-05-03 12:32:02 -07:00
TARGETS Fork and simplify LRUCache for developing enhancements (#9917) 2022-05-03 12:32:02 -07:00
thirdparty.inc Fix build jemalloc api (#5470) 2019-06-24 17:40:32 -07:00
USERS.md Add Solana's RocksDB use case in USERS.md (#9558) 2022-02-16 09:23:01 -08:00
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

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.