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A library that provides an embeddable, persistent key-value store for fast storage.
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Java 10.3%
C 2.5%
Python 1.7%
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Maysam Yabandeh 4927b4e662 Rounddown in FilePrefetchBuffer::Prefetch 
Summary:
FilePrefetchBuffer::Prefetch is currently rounds the offset up which does not fit its new use cases in prefetching index/filter blocks, as it would skips over some the offsets that were requested to be prefetched. This patch rounds down instead.

Fixes #3180
Closes https://github.com/facebook/rocksdb/pull/3413

Differential Revision: D6816392

Pulled By: maysamyabandeh

fbshipit-source-id: 3aaeaf59c55d72b61dacfae6d4a8e65eccb3c553
2018-01-26 12:57:25 -08:00
buckifier Remove import use from TARGETS 2017-11-30 15:27:34 -08:00
build_tools FreeBSD build support for RocksDB and RocksJava 2018-01-11 13:29:55 -08:00
cache fix gflags namespace 2017-12-01 10:42:05 -08:00
cmake add missing config checks to CMakeLists.txt 2017-11-30 22:57:00 -08:00
coverage Fix /bin/bash shebangs 2017-08-03 15:56:46 -07:00
db Incorrect Universal Compaction reason 2018-01-26 11:12:40 -08:00
docs fix Gemfile.lock nokogiri dependencies 2018-01-11 20:11:32 -08:00
env Add a Close() method to DB to return status when closing a db 2018-01-16 11:08:57 -08:00
examples Pinnableslice examples and blog post 2017-08-24 12:26:07 -07:00
hdfs Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
include/rocksdb Update comments about default WALRecoveryMode 2018-01-25 18:12:08 -08:00
java FreeBSD build support for RocksDB and RocksJava 2018-01-11 13:29:55 -08:00
memtable fix gflags namespace 2017-12-01 10:42:05 -08:00
monitoring fix ThreadStatus for bottom-pri compaction threads 2017-12-14 14:57:49 -08:00
options DB::DumpSupportInfo should log all supported compression types 2018-01-23 14:44:12 -08:00
port FreeBSD build support for RocksDB and RocksJava 2018-01-11 13:29:55 -08:00
table Improve performance of long range scans with readahead 2018-01-25 21:41:53 -08:00
third-party Enable MSVC W4 with a few exceptions. Fix warnings and bugs 2017-10-19 10:57:12 -07:00
tools db_bench support for memtable in-place update 2018-01-26 10:57:49 -08:00
util Rounddown in FilePrefetchBuffer::Prefetch 2018-01-26 12:57:25 -08:00
utilities Blob DB: dump blob_db_options.min_blob_size 2018-01-22 22:41:27 -08:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore Remove leftover references to phutil_module_cache 2017-08-23 12:12:21 -07:00
.travis.yml CMake cross platform Java support and add JNI to travis 2017-11-28 12:27:53 -08:00
appveyor.yml Make Windows dep switches compatible with other builds 2018-01-05 14:56:54 -08:00
AUTHORS Update RocksDB Authors File 2017-10-18 14:42:10 -07:00
CMakeLists.txt CMake changes for CRC32 Optimization on PowerPC 2018-01-23 16:57:11 -08:00
CODE_OF_CONDUCT.md Add Code of Conduct 2017-12-05 18:42:35 -08:00
CONTRIBUTING.md Add Code of Conduct 2017-12-05 18:42:35 -08:00
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 Improve performance of long range scans with readahead 2018-01-25 21:41:53 -08:00
INSTALL.md FreeBSD build support for RocksDB and RocksJava 2018-01-11 13:29:55 -08:00
issue_template.md Add a template for issues 2017-09-29 11:41:28 -07:00
LANGUAGE-BINDINGS.md Add Elixir to the list of language bindings 2017-11-21 10:13:14 -08:00
LICENSE.Apache Change RocksDB License 2017-07-15 16:11:23 -07:00
LICENSE.leveldb Add back the LevelDB license file 2017-07-16 18:42:18 -07:00
Makefile Revert Snappy version upgrade 2018-01-12 23:41:43 -08:00
README.md Add Jenkins for PPC64le build status badge 2018-01-11 14:57:45 -08:00
ROCKSDB_LITE.md Optimistic Transactions 2015-05-29 14:36:35 -07:00
src.mk Refactor ReadBlockContents() 2017-12-11 15:27:32 -08:00
TARGETS WritePrepared Txn: make buck tests parallel 2017-12-18 14:42:09 -08:00
thirdparty.inc Make Windows dep switches compatible with other builds 2018-01-05 14:56:54 -08:00
USERS.md Added ProfaneDB 2017-11-19 10:11:44 -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

Linux/Mac Build Status Windows Build status PPC64le 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/