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A library that provides an embeddable, persistent key-value store for fast storage.
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Java 10.3%
C 2.5%
Python 1.7%
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Ziyue Yang 0c2d71edba Fix typo: replace readadhead with readahead (#7953) 
Summary:
This PR replaces several "readadhead" typos with "readahead".

Pull Request resolved: https://github.com/facebook/rocksdb/pull/7953

Reviewed By: ajkr

Differential Revision: D26518903

Pulled By: jay-zhuang

fbshipit-source-id: 6f7dece0e39ec4f71c4a936399bcb2e02574f42a
2021-02-18 14:31:20 -08:00
.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 Update zstd in buck build (#7923) 2021-02-08 14:46:01 -08:00
build_tools Use actual url instead of tinyurl.com (#7950) 2021-02-10 10:08:09 -08:00
cache Add a SystemClock class to capture the time functions of an Env (#7858) 2021-01-25 22:09:11 -08:00
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 txn MultiGet() return un-committed data with snapshot (#7963) 2021-02-18 08:49:00 -08:00
db_stress_tool Add checkpoint support to BlobDB (#7959) 2021-02-17 12:42:36 -08:00
docs Update github-pages and dependencies (#7850) 2021-01-11 12:48:01 -08:00
env Wal recovery failure with encryption due to zero bytes WAL size. (#7924) 2021-02-05 12:40:52 -08:00
examples Bring the Configurable options together (#5753) 2020-09-14 17:01:01 -07:00
file Fix typo: replace readadhead with readahead (#7953) 2021-02-18 14:31:20 -08:00
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 checkpoint support to BlobDB (#7959) 2021-02-17 12:42:36 -08:00
java fix java sample typo and replace deprecated code with latest (#7906) 2021-02-01 14:45:34 -08:00
logging Add a SystemClock class to capture the time functions of an Env (#7858) 2021-01-25 22:09:11 -08:00
memory slightly improve jemalloc allocator API header (#7592) 2020-10-28 13:47:12 -07:00
memtable Add a SystemClock class to capture the time functions of an Env (#7858) 2021-01-25 22:09:11 -08:00
monitoring Add a SystemClock class to capture the time functions of an Env (#7858) 2021-01-25 22:09:11 -08:00
options Handoff checksum Implementation (#7523) 2021-02-10 22:20:32 -08:00
plugin Makefile support to statically link external plugin code (#7918) 2021-02-10 08:35:34 -08:00
port Remove Legacy and Custom FileWrapper classes from header files (#7851) 2021-01-28 22:10:32 -08:00
table Fix typo: replace readadhead with readahead (#7953) 2021-02-18 14:31:20 -08:00
test_util Add a SystemClock class to capture the time functions of an Env (#7858) 2021-01-25 22:09:11 -08:00
third-party Fix Compilation on ppc64le using Clang 11 (#7713) 2020-12-01 11:21:44 -08:00
tools Add checkpoint support to BlobDB (#7959) 2021-02-17 12:42:36 -08:00
trace_replay Add a SystemClock class to capture the time functions of an Env (#7858) 2021-01-25 22:09:11 -08:00
util add string separation while composing error message (#7919) 2021-02-18 12:25:35 -08:00
utilities Fix txn MultiGet() return un-committed data with snapshot (#7963) 2021-02-18 08:49:00 -08:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore Fuzzing RocksDB (#7685) 2020-11-17 12:56:48 -08:00
.lgtm.yml Create lgtm.yml for LGTM.com C/C++ analysis (#4058) 2018-06-26 12:43:04 -07:00
.travis.yml Cleanup Travis CI config (#7848) 2021-01-11 10:30:28 -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 Build a full RocksDB on M1 macs (#7943) 2021-02-10 10:13:59 -08:00
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 Update history.md for bug fix of actual error returned in DB::OpenForReadOnly (#7978) 2021-02-18 11:42:05 -08:00
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 Makefile support to statically link external plugin code (#7918) 2021-02-10 08:35:34 -08:00
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 Integrity protection for live updates to WriteBatch (#7748) 2021-01-29 12:18:58 -08:00
TARGETS Update zstd in buck build (#7923) 2021-02-08 14:46:01 -08:00
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.