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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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Robert 628a67b007 Reduce memory footprint in backupable db. 
* Use emplace when possible.
* Make FileInfo shared among all BackupMeta, instead of storing filenames.
* Make checksum_value in FileInfo constant.
* Reserve space beforehand if container size is known.
* Make FileInfo and BackupMeta non-copyable and non-assignable to prevent future logic errors.
  It is very dangerous to copy BackupMeta without careful handling refcounts of FileInfo.
* Remove a copy of BackupMeta when detected corrupt backup.
2015-01-09 16:58:13 +08:00
build_tools Remove -mtune=native because it's redundant 2014-12-19 09:06:45 -08:00
coverage Fix coverage script 2014-11-03 14:53:00 -08:00
db Memtablerep Benchmark 2015-01-07 15:15:30 -08:00
doc Remove seek compaction 2014-06-20 10:23:02 +02:00
examples :%s/build_config/make_config 2015-01-07 17:26:24 -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 Add comments about properties supported by DB::GetProperty() and DB::GetIntProperty() 2015-01-07 15:09:35 -08:00
java Merge pull request #444 from adamretter/java-api-fix 2014-12-23 15:26:45 +01:00
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 Dump routine to BlockBasedTableReader 2014-12-23 13:24:07 -08:00
third-party/rapidjson Fix a rapidjson compile error in mac. 2014-06-23 17:09:24 -06:00
tools benchmark.sh won't run through all tests properly if one specifies wal_dir to be different than db directory. 2015-01-05 15:36:47 -08:00
util Deprecating skip_log_error_on_recovery 2015-01-05 13:35:56 -08:00
utilities Reduce memory footprint in backupable db. 2015-01-09 16:58:13 +08:00
.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 :%s/build_config/make_config 2015-01-07 17:26:24 -08:00
.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 Deprecating skip_log_error_on_recovery 2015-01-05 13:35:56 -08:00
INSTALL.md Optimize default compile to compilation platform by default 2014-12-15 11:29:41 +01:00
LICENSE Fix copyright year 2014-03-12 12:06:58 -07:00
Makefile :%s/build_config/make_config 2015-01-07 17:26:24 -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/