A library that provides an embeddable, persistent key-value store for fast storage.
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Levi Tamasi 73f65b457e Adjust thread pool sizes when setting max_background_jobs dynamically (#6300)
Summary:
https://github.com/facebook/rocksdb/pull/2205 introduced a new
configuration option called `max_background_jobs`, superseding the
earlier options `max_background_flushes` and
`max_background_compactions`. However, unlike
`max_background_compactions`, setting `max_background_jobs` dynamically
through the `SetDBOptions` interface does not adjust the size of the
thread pools (see https://github.com/facebook/rocksdb/issues/6298). The
patch fixes this.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6300

Test Plan: Extended unit test.

Differential Revision: D19430899

Pulled By: ltamasi

fbshipit-source-id: 704006605b3c13c3d1b997ccc0831ee369721074
2020-01-16 14:35:10 -08:00
buckifier PosixRandomAccessFile::MultiRead() to use I/O uring if supported (#5881) 2019-12-07 20:55:52 -08:00
build_tools Improve instructions to install formatter (#6162) 2019-12-12 14:04:01 -08:00
cache Remove key length assertion LRUHandle::CalcTotalCharge (#6115) 2019-12-02 15:00:07 -08:00
cmake cmake: do not build tests for Release build and cleanups (#5916) 2019-12-13 12:48:06 -08:00
coverage Fix interpreter lines for files with python2-only syntax. 2019-07-09 10:51:37 -07:00
db Adjust thread pool sizes when setting max_background_jobs dynamically (#6300) 2020-01-16 14:35:10 -08:00
db_stress_tool Variable key length in db_stress (#6273) 2020-01-09 21:27:18 -08:00
docs Blog post for write_unprepared (#5711) 2019-08-15 14:41:13 -07:00
env Fix some shadow warning (#6242) 2020-01-08 18:20:13 -08:00
examples Update example of optimistic transaction (#6074) 2020-01-16 14:04:44 -08:00
file Remove earlier partial BlobDB GC implementation (#6278) 2020-01-14 15:08:44 -08:00
hdfs Add copyright headers per FB open-source checkup tool. (#5199) 2019-04-18 10:55:01 -07:00
include/rocksdb More const pointers in C API (#6283) 2020-01-10 19:27:09 -08:00
java Access Maven Central over HTTPS (#6301) 2020-01-15 17:54:53 -08:00
logging Increase max_log_size in FlushJob to 1024 bytes (#6258) 2020-01-06 10:16:52 -08:00
memory Charge block cache for cache internal usage (#5797) 2019-09-16 15:26:21 -07:00
memtable Misc hashing updates / upgrades (#5909) 2019-10-24 17:16:46 -07:00
monitoring Apply formatter to recent 200+ commits. (#5830) 2019-09-20 12:04:26 -07:00
options Introduce a new storage specific Env API (#5761) 2019-12-13 14:48:41 -08:00
port Implement getfreespace for WinEnv (#6265) 2020-01-07 13:56:13 -08:00
table Fix a bug caused by recent fix of Prefix Hash (#6302) 2020-01-16 10:47:20 -08:00
test_util unordered_write incompatible with max_successive_merges (#6284) 2020-01-10 16:53:19 -08:00
third-party Apply formatter to some recent commits (#6138) 2019-12-09 15:49:49 -08:00
tools Variable key length in db_stress (#6273) 2020-01-09 21:27:18 -08:00
trace_replay Misc hashing updates / upgrades (#5909) 2019-10-24 17:16:46 -07:00
util crash_test to cover bottommost compression and some other changes (#6215) 2019-12-20 16:14:52 -08:00
utilities Remove earlier partial BlobDB GC implementation (#6278) 2020-01-14 15:08:44 -08:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore Make buckifier python3 compatible (#5922) 2019-10-23 13:52:27 -07:00
.lgtm.yml Create lgtm.yml for LGTM.com C/C++ analysis (#4058) 2018-06-26 12:43:04 -07:00
.travis.yml Small tidy and speed up of the travis build (#6181) 2019-12-17 13:56:45 -08:00
.watchmanconfig Added .watchmanconfig file to rocksdb repo (#5593) 2019-07-19 15:00:33 -07:00
appveyor.yml Add Visual Studio 2015 to AppVeyor (#5446) 2019-12-10 20:02:31 -08:00
AUTHORS Update RocksDB Authors File 2017-10-18 14:42:10 -07:00
CMakeLists.txt Introduce a new storage specific Env API (#5761) 2019-12-13 14:48:41 -08:00
CODE_OF_CONDUCT.md Adopt Contributor Covenant 2019-08-29 23:21:01 -07:00
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 Add clarifying/instructive header to TARGETS and defs.bzl 2019-11-05 20:20:33 -08:00
DUMP_FORMAT.md First version of rocksdb_dump and rocksdb_undump. 2015-06-19 16:24:36 -07:00
HISTORY.md Adjust thread pool sizes when setting max_background_jobs dynamically (#6300) 2020-01-16 14:35:10 -08:00
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 Fix a clang analyzer report, and 'analyze' make rule (#6244) 2019-12-24 18:46:40 -08:00
README.md Replaced some words (#5877) 2019-10-07 12:28:09 -07:00
ROCKSDB_LITE.md Fix some typos in comments and docs. 2018-03-08 10:27:25 -08:00
src.mk Introduce a new storage specific Env API (#5761) 2019-12-13 14:48:41 -08:00
TARGETS Introduce a new storage specific Env API (#5761) 2019-12-13 14:48:41 -08:00
thirdparty.inc Fix build jemalloc api (#5470) 2019-06-24 17:40:32 -07:00
USERS.md add user nebula (#6271) 2020-01-08 13:46:43 -08:00
Vagrantfile Adding CentOS 7 Vagrantfile & build script 2018-02-26 15:27:17 -08:00
WINDOWS_PORT.md #5145 , rename port/dirent.h to port/port_dirent.h to avoid compile err when use port dir as header dir output (#5152) 2019-04-04 11:38:19 -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 especially 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.