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A library that provides an embeddable, persistent key-value store for fast storage.
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Java 10.3%
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Stanislau Hlebik d916593ead Add Prev() for merge operator 
Summary: Implement Prev() with merge operator for DBIterator. Request from mongoDB. Task 4673663.

Test Plan: make all check

Reviewers: sdong

Reviewed By: sdong

Subscribers: leveldb

Differential Revision: https://reviews.facebook.net/D19743
2014-07-15 16:10:18 -07:00
build_tools Adding NUMA support to db_bench tests 2014-07-07 10:53:31 -07:00
coverage Disable the html-based coverage report by default 2014-02-06 12:58:13 -08:00
db Add Prev() for merge operator 2014-07-15 16:10:18 -07:00
doc Remove seek compaction 2014-06-20 10:23:02 +02:00
examples Make it easier to start using RocksDB 2014-05-10 10:49:33 -07:00
hdfs hdfs cleanup and compile test against CDH 4.4. 2014-05-20 17:22:12 -04:00
helpers/memenv Expose in memory Env to the world 2014-04-14 12:28:15 -07:00
include Support multiple DB directories in universal compaction style 2014-07-15 12:06:28 -07:00
java Caching methodId and fieldId is fine: v2 2014-07-09 09:09:08 -07:00
linters allow lambda function syntax in cpplint 2014-02-20 12:47:05 -08:00
port generic rate limiter 2014-07-08 11:41:57 -07:00
table Removing NewTotalOrderPlainTableFactory 2014-07-10 11:32:04 -07:00
third-party/rapidjson Fix a rapidjson compile error in mac. 2014-06-23 17:09:24 -06:00
tools [db stress] Don't drop column families if there's only 1 2014-07-14 07:56:07 -07:00
util Support multiple DB directories in universal compaction style 2014-07-15 12:06:28 -07:00
utilities Add missing DB functions to DocumentDB 2014-07-10 09:52:46 -07:00
.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 Add .swp to gitignore 2014-05-16 13:17:29 -07:00
.travis.yml Turn off travis notifications 2014-05-14 16:08:02 -07:00
CONTRIBUTING.md facebook accounts are not required for CLA signers 2014-07-08 05:57:54 -04:00
HISTORY.md Support multiple DB directories in universal compaction style 2014-07-15 12:06:28 -07:00
INSTALL.md specify the command to install build_tools/mac-install-gflags.sh file in doc 2014-06-17 17:03:21 -05:00
LICENSE Fix copyright year 2014-03-12 12:06:58 -07:00
Makefile Update master to version 3.3 2014-07-10 11:59:35 -07:00
PATENTS Fix the patent format 2013-10-16 15:37:32 -07:00
README.md Update README.md 2014-06-23 15:58:54 -07:00
ROCKSDB_LITE.md RocksDBLite 2014-04-15 13:39:26 -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 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/