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A library that provides an embeddable, persistent key-value store for fast storage.
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sdong 69c8614815 Avoid to get manifest file size when recovering from it. (#6369) 
Summary:
Right now RocksDB gets manifest file size before recovering from it. The information is available in LogReader. Use it instead to prevent one file system call.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6369

Test Plan: Run all existing tests

Differential Revision: D19714872

fbshipit-source-id: 0144be324d403c99e3da875ea2feccc8f64e883d
2020-02-04 11:39:23 -08:00
buckifier PosixRandomAccessFile::MultiRead() to use I/O uring if supported (#5881) 2019-12-07 20:55:52 -08:00
build_tools Don't download from (unreliable) maven.org (#6348) 2020-01-30 11:02:08 -08:00
cache Remove key length assertion LRUHandle::CalcTotalCharge (#6115) 2019-12-02 15:00:07 -08:00
cmake cmake: do not build tests for Release build and cleanups (#5916) 2019-12-13 12:48:06 -08:00
coverage Fix interpreter lines for files with python2-only syntax. 2019-07-09 10:51:37 -07:00
db Avoid to get manifest file size when recovering from it. (#6369) 2020-02-04 11:39:23 -08:00
db_stress_tool Fix release warning for unused bg_canceled 2020-01-31 15:09:10 -08:00
docs Log warning for high bits/key in legacy Bloom filter (#6312) 2020-01-17 19:37:35 -08:00
env Fix some shadow warning (#6242) 2020-01-08 18:20:13 -08:00
examples Update example of optimistic transaction (#6074) 2020-01-16 14:04:44 -08:00
file Fix a test failure in error_handler_test (#6367) 2020-02-03 18:16:52 -08:00
hdfs Add copyright headers per FB open-source checkup tool. (#5199) 2019-04-18 10:55:01 -07:00
include/rocksdb Add an option to prevent DB::Open() from querying sizes of all sst files (#6353) 2020-02-04 01:27:26 -08:00
java Add an option to prevent DB::Open() from querying sizes of all sst files (#6353) 2020-02-04 01:27:26 -08:00
logging Increase max_log_size in FlushJob to 1024 bytes (#6258) 2020-01-06 10:16:52 -08:00
memory Charge block cache for cache internal usage (#5797) 2019-09-16 15:26:21 -07:00
memtable Misc hashing updates / upgrades (#5909) 2019-10-24 17:16:46 -07:00
monitoring Apply formatter to recent 200+ commits. (#5830) 2019-09-20 12:04:26 -07:00
options Add an option to prevent DB::Open() from querying sizes of all sst files (#6353) 2020-02-04 01:27:26 -08:00
port Implement getfreespace for WinEnv (#6265) 2020-01-07 13:56:13 -08:00
table Add ReadOptions.auto_prefix_mode (#6314) 2020-01-28 14:44:05 -08:00
test_util Add an option to prevent DB::Open() from querying sizes of all sst files (#6353) 2020-02-04 01:27:26 -08:00
third-party Apply formatter to some recent commits (#6138) 2019-12-09 15:49:49 -08:00
tools Revert "crash_test to enable block-based table hash index (#6310)" (#6327) 2020-01-23 09:09:17 -08:00
trace_replay Misc hashing updates / upgrades (#5909) 2019-10-24 17:16:46 -07:00
util Shorten certain test names to avoid infra failure (#6352) 2020-01-30 23:10:24 -08:00
utilities Shorten certain test names to avoid infra failure (#6352) 2020-01-30 23:10:24 -08:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore Make buckifier python3 compatible (#5922) 2019-10-23 13:52:27 -07:00
.lgtm.yml Create lgtm.yml for LGTM.com C/C++ analysis (#4058) 2018-06-26 12:43:04 -07:00
.travis.yml Don't download from (unreliable) maven.org (#6348) 2020-01-30 11:02:08 -08:00
.watchmanconfig Added .watchmanconfig file to rocksdb repo (#5593) 2019-07-19 15:00:33 -07:00
appveyor.yml Don't download from (unreliable) maven.org (#6348) 2020-01-30 11:02:08 -08:00
AUTHORS Update RocksDB Authors File 2017-10-18 14:42:10 -07:00
CMakeLists.txt Introduce a new storage specific Env API (#5761) 2019-12-13 14:48:41 -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 Add clarifying/instructive header to TARGETS and defs.bzl 2019-11-05 20:20:33 -08:00
DUMP_FORMAT.md First version of rocksdb_dump and rocksdb_undump. 2015-06-19 16:24:36 -07:00
HISTORY.md Add an option to prevent DB::Open() from querying sizes of all sst files (#6353) 2020-02-04 01:27:26 -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 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 Don't download from (unreliable) maven.org (#6348) 2020-01-30 11:02:08 -08:00
README.md Replaced some words (#5877) 2019-10-07 12:28:09 -07:00
ROCKSDB_LITE.md Fix some typos in comments and docs. 2018-03-08 10:27:25 -08:00
src.mk Introduce a new storage specific Env API (#5761) 2019-12-13 14:48:41 -08:00
TARGETS Introduce a new storage specific Env API (#5761) 2019-12-13 14:48:41 -08:00
thirdparty.inc Fix build jemalloc api (#5470) 2019-06-24 17:40:32 -07:00
USERS.md add user nebula (#6271) 2020-01-08 13:46:43 -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

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 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/

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.