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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%
Perl 1.1%
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sdong d7a486668c Improve scalability of DB::GetSnapshot() 
Summary: Now DB::GetSnapshot() doesn't scale to more column families, as it needs to go through all the column families to find whether snapshot is supported. This patch optimizes it.

Test Plan:
Add unit tests to cover negative cases.
make all check

Reviewers: yhchiang, rven, igor

Reviewed By: igor

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D30093
2014-12-11 13:27:57 -08:00
build_tools Turn on -Wshorten-64-to-32 and fix all the errors 2014-11-11 16:47:22 -05:00
coverage Fix coverage script 2014-11-03 14:53:00 -08:00
db Improve scalability of DB::GetSnapshot() 2014-12-11 13:27:57 -08:00
doc Remove seek compaction 2014-06-20 10:23:02 +02:00
examples Add rocksdb::ToString() to address cases where std::to_string is not available. 2014-11-24 20:44:49 -08:00
hdfs Replace exception by abort() in dummy HdfsEnv implementation. 2014-12-05 13:30:57 -08:00
helpers/memenv Turn -Wshadow back on 2014-11-06 11:14:28 -08:00
include Fix calculation of max_total_wal_size in db_options_.max_total_wal_size == 0 case 2014-12-08 15:26:35 -08:00
java Merge pull request #422 from fyrz/RocksJava-Quality-Improvements 2014-12-05 21:38:05 -08:00
linters Fix linters 2014-12-02 13:53:39 -05:00
port Add rocksdb::ToString() to address cases where std::to_string is not available. 2014-11-24 20:44:49 -08:00
table Enforce write buffer memory limit across column families 2014-12-02 12:09:20 -08:00
third-party/rapidjson Fix a rapidjson compile error in mac. 2014-06-23 17:09:24 -06:00
tools add range scan test to benchmark script 2014-12-10 13:04:58 -08:00
util Modifed the LRU cache eviction code so that it doesn't evict blocks which have exteranl references 2014-12-10 22:28:53 -08:00
utilities Clean up StringSplit 2014-11-21 11:05:28 -05:00
.arcconfig Improve/fix bugs for the cpp linter 2014-02-13 17:48:11 -08:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore Ignore IntelliJ idea project files and ignore java/out folder 2014-10-21 15:52:27 +01:00
.travis.yml Don't parallelize the build in travis 2014-11-14 16:23:56 -08:00
AUTHORS Add AUTHORS file. Fix #203 2014-09-29 10:52:18 -07:00
CONTRIBUTING.md facebook accounts are not required for CLA signers 2014-07-08 05:57:54 -04:00
HISTORY.md Modifed the LRU cache eviction code so that it doesn't evict blocks which have exteranl references 2014-12-10 22:28:53 -08:00
INSTALL.md Update INSTALL.md 2014-10-01 11:15:42 -07:00
LICENSE Fix copyright year 2014-03-12 12:06:58 -07:00
Makefile Add -fno-exceptions flag to ROCKSDB_LITE. 2014-12-05 21:34:20 -08:00
PATENTS Fix the patent format 2013-10-16 15:37:32 -07:00
README.md Replaced "built on on earlier work" by "built on earlier work" in README.md 2014-09-17 01:16:17 -07:00
ROCKSDB_LITE.md RocksDBLite 2014-04-15 13:39:26 -07:00
Vagrantfile Package generation for Ubuntu and CentOS 2014-09-29 16:09:46 -07:00

README.md

RocksDB: A Persistent Key-Value Store for Flash and RAM Storage

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/