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A library that provides an embeddable, persistent key-value store for fast storage.
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C++ 82.1%
Java 10.3%
C 2.5%
Python 1.7%
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Jay Zhuang a781b103da Fix getApproximateMemTableStats() return type (#8098) 
Summary:
Which should return 2 long instead of an array.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/8098

Reviewed By: mrambacher

Differential Revision: D27308741

Pulled By: jay-zhuang

fbshipit-source-id: 44beea2bd28cf6779b048bebc98f2426fe95e25c
2021-03-31 09:46:47 -07:00
.circleci Add circleci format_compatible nightly build (#7926) 2021-02-09 20:48:53 -08:00
.github/workflows Update clang-format-diff.py path (#7944) 2021-02-09 12:49:38 -08:00
buckifier range_tree requires GNU libc on ppc64 (#8070) 2021-03-29 16:32:08 -07:00
build_tools Pass PLATFORM_FLAGS in build_detect_platform (#8111) 2021-03-31 07:40:46 -07:00
cache Fix some typos in comments (#8066) 2021-03-25 21:18:08 -07:00
cmake Add find_dependency() in cmake config file. (#6791) 2020-05-12 21:18:29 -07:00
coverage Find the correct gcov (#6904) 2020-06-01 16:33:05 -07:00
db Fix error_handler_fs_test failure due to statistics (#8136) 2021-03-30 21:44:44 -07:00
db_stress_tool Add user-defined timestamps to db_stress (#8061) 2021-03-23 05:13:30 -07:00
docs Vulnerability issue in kramdown dependency (#8131) 2021-03-30 10:31:27 -07:00
env Adding safer permissions to PosixFilesystem::NewLogger (#8106) 2021-03-29 20:47:21 -07:00
examples make:Fix c header prototypes (#7994) 2021-03-09 20:44:23 -08:00
file fix typo (#8118) 2021-03-29 10:32:10 -07:00
fuzz Remove Legacy and Custom FileWrapper classes from header files (#7851) 2021-01-28 22:10:32 -08:00
hdfs fix build with 'USE_HDFS' on windows (#6950) 2020-06-12 16:21:50 -07:00
include/rocksdb Add thread safety to BackupEngine, explain more (#8115) 2021-03-29 22:41:51 -07:00
java Fix getApproximateMemTableStats() return type (#8098) 2021-03-31 09:46:47 -07:00
logging Use SystemClock* instead of std::shared_ptr<SystemClock> in lower level routines (#8033) 2021-03-15 04:34:11 -07:00
memory Use thread-safe strerror_r() to get error message (#8087) 2021-03-24 23:07:27 -07:00
memtable Use SystemClock* instead of std::shared_ptr<SystemClock> in lower level routines (#8033) 2021-03-15 04:34:11 -07:00
monitoring Add the statistics and info log for Error handler (#8050) 2021-03-17 22:38:13 -07:00
options Use SystemClock* instead of std::shared_ptr<SystemClock> in lower level routines (#8033) 2021-03-15 04:34:11 -07:00
plugin Makefile support to statically link external plugin code (#7918) 2021-02-10 08:35:34 -08:00
port On ARM platform, use yield op to relax CPU. See issue 7376 (#7438) 2021-03-26 18:13:24 -07:00
table Apply sample_for_compression to all block-based tables (#8105) 2021-03-25 15:00:45 -07:00
test_util Unittest uses unique test db name (#8124) 2021-03-30 16:51:26 -07:00
third-party Fix a compilation error in CircleCI vs2019 CXX20 (#8090) 2021-03-23 10:28:04 -07:00
tools Fix check in db_bench for num shard bits to match check in LRUCache (#8110) 2021-03-29 10:34:54 -07:00
trace_replay Fix clang analyze for trace replace GetPayload (#8121) 2021-03-26 17:48:31 -07:00
util Introduce a ThreadGuard class and use it in ExternalSSTFileTest.PickedLevelBug (#8112) 2021-03-25 22:08:58 -07:00
utilities Add thread safety to BackupEngine, explain more (#8115) 2021-03-29 22:41:51 -07:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore gitignore cmake-build-* for CLion integration (#7933) 2021-02-19 13:43:15 -08:00
.lgtm.yml Create lgtm.yml for LGTM.com C/C++ analysis (#4058) 2018-06-26 12:43:04 -07:00
.travis.yml use LIB_MODE=shared on Travis make commands (#8043) 2021-03-08 17:21:24 -08:00
.watchmanconfig Added .watchmanconfig file to rocksdb repo (#5593) 2019-07-19 15:00:33 -07:00
appveyor.yml Remove 2019 from appveyor (#7038) 2020-06-29 14:31:41 -07:00
AUTHORS Update RocksDB Authors File 2017-10-18 14:42:10 -07:00
CMakeLists.txt Move compacted_db_impl.[c|h] to db/db_impl (#8082) 2021-03-23 13:49:26 -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 options.delayed_write_rate use the rate of rate_limiter by default. 2017-05-24 09:58:24 -07:00
defs.bzl Make testpilot recognize that these tests have coverage instrumentation 2020-03-20 11:23:23 -07:00
DUMP_FORMAT.md First version of rocksdb_dump and rocksdb_undump. 2015-06-19 16:24:36 -07:00
HISTORY.md Fix possible hang issue in ~DBImpl() when flush is scheduled in LOW pool (#8125) 2021-03-30 18:35:20 -07:00
INSTALL.md Update the version of the dependencies used by the RocksJava static build (#4761) 2018-12-18 20:25:43 -08:00
issue_template.md Add Google Group to Issue Template 2020-01-28 14:40:37 -08:00
LANGUAGE-BINDINGS.md Add RestoreDBFromLatestBackup to C API, add new C# package (#7092) 2020-07-08 11:56:41 -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 Pass PLATFORM_FLAGS in build_detect_platform (#8111) 2021-03-31 07:40:46 -07:00
PLUGINS.md Makefile support to statically link external plugin code (#7918) 2021-02-10 08:35:34 -08:00
README.md Fix the CI badge for ppc64le Jenkins (#7561) 2020-10-16 09:00:56 -07:00
ROCKSDB_LITE.md Fix some typos in comments and docs. 2018-03-08 10:27:25 -08:00
src.mk range_tree requires GNU libc on ppc64 (#8070) 2021-03-29 16:32:08 -07:00
TARGETS Move compacted_db_impl.[c|h] to db/db_impl (#8082) 2021-03-23 13:49:26 -07:00
thirdparty.inc Fix build jemalloc api (#5470) 2019-06-24 17:40:32 -07:00
USERS.md Add Apache Doris to USERS (#7865) 2021-01-19 15:31:56 -08:00
Vagrantfile Adding CentOS 7 Vagrantfile & build script 2018-02-26 15:27:17 -08:00
WINDOWS_PORT.md #5145 , rename port/dirent.h to port/port_dirent.h to avoid compile err when use port dir as header dir output (#5152) 2019-04-04 11:38:19 -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/master/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.

Design discussions are conducted in https://www.facebook.com/groups/rocksdb.dev/ and https://rocksdb.slack.com/

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.