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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%
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Lei Jin 58c49466d2 Allow env_posix to lower background thread IO priority 
Summary: This is a linux-specific system call.

Test Plan: ran db_bench

Reviewers: igor, yhchiang, sdong

Reviewed By: sdong

Subscribers: haobo, leveldb

Differential Revision: https://reviews.facebook.net/D21183
2014-08-13 20:49:58 -07:00
build_tools Changes to support unity build: 2014-08-11 13:22:47 -04:00
coverage Disable the html-based coverage report by default 2014-02-06 12:58:13 -08:00
db Allow env_posix to lower background thread IO priority 2014-08-13 20:49:58 -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 Allow env_posix to lower background thread IO priority 2014-08-13 20:49:58 -07:00
java [Java] Add compaction style to options 2014-07-23 15:45:30 -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 Integrating Cuckoo Hash SST Table format into RocksDB 2014-08-11 20:21:07 -07:00
third-party/rapidjson Fix a rapidjson compile error in mac. 2014-06-23 17:09:24 -06:00
tools Move include/utilities/*.h to include/rocksdb/utilities/*.h 2014-07-23 10:21:38 -04:00
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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/