A library that provides an embeddable, persistent key-value store for fast storage.
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Shi Feng 01e6badbb6 Introduce CPU timers for iterator seek and next (#5076)
Summary:
Introduce CPU timers for iterator seek and next operations. Seek
counter includes SeekToFirst, SeekToLast and SeekForPrev, w/ the
caveat that SeekToLast timer doesn't include some post processing
time if upper bound is defined.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5076

Differential Revision: D14525218

Pulled By: fredfsh

fbshipit-source-id: 03ba25df3b22b06c072621e4de0eacfa1445f0d9
2019-03-26 16:32:13 -07:00
buckifier Add load statements to rocksdb TARGETS files 2019-02-13 14:08:21 -08:00
build_tools Use fallocate even if hole-punching unsupported (#5023) 2019-03-04 15:43:17 -08:00
cache Make adaptivity of LRU cache mutexes configurable (#5054) 2019-03-20 12:33:44 -07:00
cmake Make FindZLIB consistent with official definitions (#4823) 2019-01-02 12:49:57 -08:00
coverage Remove unused imports, from python scripts. (#4057) 2018-06-26 12:43:04 -07:00
db Introduce CPU timers for iterator seek and next (#5076) 2019-03-26 16:32:13 -07:00
docs Blog post for format_version=4 2019-03-08 16:49:30 -08:00
env remove incorrect assert in GetUniqueIdFromFile (#5102) 2019-03-25 23:28:29 -07:00
examples Pin top-level index on partitioned index/filter blocks (#4037) 2018-06-22 15:27:46 -07:00
hdfs Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
include/rocksdb Introduce CPU timers for iterator seek and next (#5076) 2019-03-26 16:32:13 -07:00
java Document the interaction between disableWAL and BackupEngine (#5071) 2019-03-19 14:58:14 -07:00
memtable Apply modernize-use-override (2nd iteration) 2019-02-14 14:41:36 -08:00
monitoring Introduce CPU timers for iterator seek and next (#5076) 2019-03-26 16:32:13 -07:00
options Allow option string to get comparator from object registry (#5106) 2019-03-26 14:23:51 -07:00
port fix NowNanos overflow (#5062) 2019-03-21 15:18:36 -07:00
table Fix SstFileReader not able to open ingested file (#5097) 2019-03-26 10:25:18 -07:00
third-party Support pragma once in all header files and cleanup some warnings (#4339) 2018-09-05 18:13:31 -07:00
tools ldb command parsing: allow option values to contain equals signs (#5088) 2019-03-25 13:23:11 -07:00
util Use placement new and delete in autovector (#5080) 2019-03-20 10:42:04 -07:00
utilities BlobDB::Open() should put all existing trash files to delete scheduler (#5103) 2019-03-26 10:53:19 -07:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore RocksDB Trace Analyzer (#4091) 2018-08-13 11:44:02 -07:00
.lgtm.yml Create lgtm.yml for LGTM.com C/C++ analysis (#4058) 2018-06-26 12:43:04 -07:00
.travis.yml Fix printf formatting on MacOS (#4533) 2018-10-19 14:46:09 -07:00
appveyor.yml Add RocksJava build to AppVeyor 2019-01-03 10:44:44 -08:00
AUTHORS Update RocksDB Authors File 2017-10-18 14:42:10 -07:00
CMakeLists.txt Use fallocate even if hole-punching unsupported (#5023) 2019-03-04 15:43:17 -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
defs.bzl [sync fix] Add defs.bzl 2019-02-28 11:35:30 -08:00
DUMP_FORMAT.md First version of rocksdb_dump and rocksdb_undump. 2015-06-19 16:24:36 -07:00
HISTORY.md Fix SstFileReader not able to open ingested file (#5097) 2019-03-26 10:25:18 -07:00
INSTALL.md Update the version of the dependencies used by the RocksJava static build (#4761) 2018-12-18 20:25:43 -08:00
issue_template.md Add a template for issues 2017-09-29 11:41:28 -07:00
LANGUAGE-BINDINGS.md LANGUAGE-BINDINGS.md: mention python-rocksdb 2019-03-20 11:10:48 -07:00
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 Add missing functionality to RocksJava (#4833) 2019-02-22 14:46:46 -08:00
README.md Create lgtm.yml for LGTM.com C/C++ analysis (#4058) 2018-06-26 12:43:04 -07:00
ROCKSDB_LITE.md Fix some typos in comments and docs. 2018-03-08 10:27:25 -08:00
src.mk Add missing functionality to RocksJava (#4833) 2019-02-22 14:46:46 -08:00
TARGETS add GetStatsHistory to retrieve stats snapshots (#4748) 2019-02-20 15:52:54 -08:00
thirdparty.inc Provide a way to override windows memory allocator with jemalloc for ZSTD 2018-06-04 12:12:48 -07:00
USERS.md Adding IOTA Foundation to USERS.MD (#4436) 2018-10-02 10:03:46 -07:00
Vagrantfile Adding CentOS 7 Vagrantfile & build script 2018-02-26 15:27:17 -08:00
WINDOWS_PORT.md Add GCC 8 to Travis (#3433) 2018-07-13 10:58:06 -07:00

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/

License

RocksDB is dual-licensed under both the GPLv2 (found in the COPYING file in the root directory) and Apache 2.0 License (found in the LICENSE.Apache file in the root directory). You may select, at your option, one of the above-listed licenses.