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A library that provides an embeddable, persistent key-value store for fast storage.
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Vijay Nadimpalli a5fa8735e9 Code comment for Version Edit (#5829) 
Summary:
Added comment for Version Edit.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5829

Test Plan: Run existing tests

Differential Revision: D17486229

Pulled By: vjnadimpalli

fbshipit-source-id: b4b31104fadd667356b64bd2dc409b3376ee46ca
2019-09-20 10:07:42 -07:00
buckifier Change buckifier to support parameterized dependencies (#5648) 2019-08-02 10:55:17 -07:00
build_tools Update dependencies (#5777) 2019-09-16 20:44:47 -07:00
cache Use total charge in MaintainPoolSize (#5813) 2019-09-17 00:16:13 -07:00
cmake cmake: s/SNAPPY_LIBRARIES/snappy_LIBRARIES/ (#5687) 2019-08-16 15:49:23 -07:00
coverage Fix interpreter lines for files with python2-only syntax. 2019-07-09 10:51:37 -07:00
db Code comment for Version Edit (#5829) 2019-09-20 10:07:42 -07:00
docs Blog post for write_unprepared (#5711) 2019-08-15 14:41:13 -07:00
env Charge block cache for cache internal usage (#5797) 2019-09-16 15:26:21 -07:00
examples Refactor trimming logic for immutable memtables (#5022) 2019-08-23 13:55:34 -07:00
file Dedup IsFileSectorAligned() to fix unity build. (#5812) 2019-09-16 20:42:07 -07:00
hdfs Add copyright headers per FB open-source checkup tool. (#5199) 2019-04-18 10:55:01 -07:00
include/rocksdb Remove snap_refresh_nanos option (#5826) 2019-09-18 20:26:04 -07:00
java Apply formatter on recent 45 commits. (#5827) 2019-09-19 12:34:17 -07:00
logging Divide file_reader_writer.h and .cc (#5803) 2019-09-16 10:33:51 -07:00
memory Charge block cache for cache internal usage (#5797) 2019-09-16 15:26:21 -07:00
memtable Charge block cache for cache internal usage (#5797) 2019-09-16 15:26:21 -07:00
monitoring Remove snap_refresh_nanos option (#5826) 2019-09-18 20:26:04 -07:00
options Apply formatter on recent 45 commits. (#5827) 2019-09-19 12:34:17 -07:00
port Refactor/consolidate legacy Bloom implementation details (#5784) 2019-09-16 16:17:09 -07:00
table Remove snap_refresh_nanos option (#5826) 2019-09-18 20:26:04 -07:00
test_util Divide file_reader_writer.h and .cc (#5803) 2019-09-16 10:33:51 -07:00
third-party Refactor/consolidate legacy Bloom implementation details (#5784) 2019-09-16 16:17:09 -07:00
tools Apply formatter on recent 45 commits. (#5827) 2019-09-19 12:34:17 -07:00
trace_replay Block cache analyzer: Support reading from human readable trace file. (#5679) 2019-08-09 13:13:54 -07:00
util Apply formatter on recent 45 commits. (#5827) 2019-09-19 12:34:17 -07:00
utilities Apply formatter on recent 45 commits. (#5827) 2019-09-19 12:34:17 -07:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore Block cache simulator: Add pysim to simulate caches using reinforcement learning. (#5610) 2019-07-26 14:41:13 -07:00
.lgtm.yml Create lgtm.yml for LGTM.com C/C++ analysis (#4058) 2018-06-26 12:43:04 -07:00
.travis.yml Switch Travis to Xenial build (#4789) 2019-06-17 10:20:02 -07:00
.watchmanconfig Added .watchmanconfig file to rocksdb repo (#5593) 2019-07-19 15:00:33 -07:00
appveyor.yml New API to get all merge operands for a Key (#5604) 2019-08-06 14:26:44 -07:00
AUTHORS Update RocksDB Authors File 2017-10-18 14:42:10 -07:00
CMakeLists.txt Divide file_reader_writer.h and .cc (#5803) 2019-09-16 10:33:51 -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 Change buckifier to support parameterized dependencies (#5648) 2019-08-02 10:55:17 -07:00
DUMP_FORMAT.md First version of rocksdb_dump and rocksdb_undump. 2015-06-19 16:24:36 -07:00
HISTORY.md Remove snap_refresh_nanos option (#5826) 2019-09-18 20:26:04 -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 a template for issues 2017-09-29 11:41:28 -07:00
LANGUAGE-BINDINGS.md LANGUAGE-BINDINGS.md: mention python-rocksdb 2019-03-20 11:10:48 -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 Refactor deletefile_test.cc (#5822) 2019-09-18 16:58:21 -07:00
README.md Add LevelDB repository link in the Readme 2019-04-01 18:19:09 -07:00
ROCKSDB_LITE.md Fix some typos in comments and docs. 2018-03-08 10:27:25 -08:00
src.mk Divide file_reader_writer.h and .cc (#5803) 2019-09-16 10:33:51 -07:00
TARGETS Divide file_reader_writer.h and .cc (#5803) 2019-09-16 10:33:51 -07:00
thirdparty.inc Fix build jemalloc api (#5470) 2019-06-24 17:40:32 -07:00
USERS.md Add avrio to USERS.md (#5748) 2019-09-15 21:29:09 -07:00
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

Linux/Mac Build Status Windows Build status PPC64le Build 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 specially 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/

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.