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A library that provides an embeddable, persistent key-value store for fast storage.
6,206 Commits 152 Branches 236 Tags 271 MiB
C++ 82.1%
Java 10.3%
C 2.5%
Python 1.7%
Perl 1.1%
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Siying Dong 5582123dee Sample number of reads per SST file 
Summary:
We estimate number of reads per SST files, by updating the counter per file in sampled read requests. This information can later be used to trigger compactions to improve read performacne.
Closes https://github.com/facebook/rocksdb/pull/2417

Differential Revision: D5193528

Pulled By: siying

fbshipit-source-id: b4241c5ad0eaf444b61afb53f8e6290d9f5da2df
2017-06-12 07:12:08 -07:00
arcanist_util Fix arc setting for Facebook internal tools 2017-02-02 13:24:16 -08:00
buckifier update buckifer/TARGETS 2017-05-24 11:56:57 -07:00
build_tools fixed typo 2017-06-05 11:27:34 -07:00
cache Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
cmake/modules CMake: more MinGW fixes 2017-04-06 14:09:13 -07:00
coverage Fix coverage script 2014-11-03 14:53:00 -08:00
db Sample number of reads per SST file 2017-06-12 07:12:08 -07:00
docs RocksDB 5.4.5 release blog post 2017-05-26 23:11:56 -07:00
env Fix crash in PosixWritableFile::Close() when fstat() fails 2017-06-08 19:56:22 -07:00
examples CMake: more MinGW fixes 2017-04-06 14:09:13 -07:00
hdfs New API for background work in single thread pool 2017-05-23 11:12:27 -07:00
include/rocksdb Sample number of reads per SST file 2017-06-12 07:12:08 -07:00
java Java APIs for put, merge and delete in file ingestion 2017-06-08 17:11:57 -07:00
memtable Improve write buffer manager (and allow the size to be tracked in block cache) 2017-06-02 14:26:56 -07:00
monitoring Sample number of reads per SST file 2017-06-12 07:12:08 -07:00
options fixed typo 2017-06-05 11:27:34 -07:00
port New API for background work in single thread pool 2017-05-23 11:12:27 -07:00
table Sample number of reads per SST file 2017-06-12 07:12:08 -07:00
third-party fixed typo 2017-05-16 11:07:58 -07:00
tools fixed typo 2017-06-05 11:27:34 -07:00
util Fix RocksDB Lite build with CLANG 2017-06-12 06:41:27 -07:00
utilities Fix clang errors by asserting the precondition 2017-06-06 12:56:52 -07:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.deprecated_arcconfig Update ShipIt to honor TARGETS updates 2017-04-13 16:12:03 -07:00
.gitignore Simple blob file dumper 2017-05-23 10:42:59 -07:00
.travis.yml Force travis to build with clang on MacOS 2017-06-05 15:41:57 -07:00
appveyor.yml Rework test running script. 2017-04-05 11:39:20 -07:00
AUTHORS Add AUTHORS file. Fix #203 2014-09-29 10:52:18 -07:00
CMakeLists.txt Improve write buffer manager (and allow the size to be tracked in block cache) 2017-06-02 14:26:56 -07:00
CONTRIBUTING.md facebook accounts are not required for CLA signers 2014-07-08 05:57:54 -04:00
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
DUMP_FORMAT.md First version of rocksdb_dump and rocksdb_undump. 2015-06-19 16:24:36 -07:00
HISTORY.md Sample number of reads per SST file 2017-06-12 07:12:08 -07:00
INSTALL.md cross-platform compatibility improvements 2017-05-15 16:15:38 -07:00
LANGUAGE-BINDINGS.md Adding Dlang to the list 2017-02-16 17:24:10 -08:00
LICENSE Updated all copyright headers to the new format. 2016-02-09 15:12:00 -08:00
Makefile Switch from CentOS 5 to CentOS 6 for crossbuilding RocksJava 2017-06-05 12:27:24 -07:00
PATENTS Update Patent Grant. 2015-04-13 10:33:43 +01:00
README.md Appveyor badge to show master branch 2016-07-26 13:54:08 -07:00
ROCKSDB_LITE.md Optimistic Transactions 2015-05-29 14:36:35 -07:00
src.mk Improve write buffer manager (and allow the size to be tracked in block cache) 2017-06-02 14:26:56 -07:00
TARGETS Improve write buffer manager (and allow the size to be tracked in block cache) 2017-06-02 14:26:56 -07:00
thirdparty.inc Introduce XPRESS compresssion on Windows. (#1081) 2016-04-19 22:54:24 -07:00
USERS.md Update USERS.md add user Pika 2017-01-25 10:39:17 -08:00
Vagrantfile Update Vagrant file (test internal phabricator workflow) 2016-10-28 15:39:19 -07:00
WINDOWS_PORT.md Commit both PR and internal code review changes 2015-07-07 16:58:20 -07:00

README.md

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

Build Status 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/