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A library that provides an embeddable, persistent key-value store for fast storage.
4,031 Commits 152 Branches 236 Tags 271 MiB
C++ 82.1%
Java 10.3%
C 2.5%
Python 1.7%
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sdong 5de807ac16 Add options.hard_pending_compaction_bytes_limit to stop writes if compaction lagging behind 
Summary: Add an option to stop writes if compaction lefts behind. If estimated pending compaction bytes is more than threshold specified by options.hard_pending_compaction_bytes_liimt, writes will stop until compactions are cleared to under the threshold.

Test Plan: Add unit test DBTest.HardLimit

Reviewers: rven, kradhakrishnan, anthony, IslamAbdelRahman, yhchiang, igor

Reviewed By: igor

Subscribers: MarkCallaghan, leveldb, dhruba

Differential Revision: https://reviews.facebook.net/D45999
2015-09-14 12:51:16 -07:00
arcanist_util Fix linters on non-fb machines 2015-08-11 11:36:12 -07:00
build_tools Minor fix to CI job definition 2015-09-14 12:10:18 -07:00
coverage Fix coverage script 2014-11-03 14:53:00 -08:00
db Add options.hard_pending_compaction_bytes_limit to stop writes if compaction lagging behind 2015-09-14 12:51:16 -07:00
doc Remove seek compaction 2014-06-20 10:23:02 +02:00
examples Fix compact_files_example 2015-08-25 12:29:44 -07:00
hdfs [Cleanup] Remove RandomRWFile 2015-08-12 10:18:59 -07:00
include/rocksdb Add options.hard_pending_compaction_bytes_limit to stop writes if compaction lagging behind 2015-09-14 12:51:16 -07:00
java Fixed a compile warning in rocksjni/loggerjnicallback.cc 2015-09-02 15:07:44 -07:00
port Address code review comments both GH and internal 2015-09-11 17:36:48 -07:00
table Refactor NewTableReader to accept TableReaderOptions 2015-09-11 11:36:33 -07:00
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tools Tests for ManifestDumpCommand and ListColumnFamiliesCommand 2015-09-08 14:23:42 -07:00
util Add options.hard_pending_compaction_bytes_limit to stop writes if compaction lagging behind 2015-09-14 12:51:16 -07:00
utilities Transactions: Release Locks when rolling back to a savepoint 2015-09-11 18:10:50 -07:00
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HISTORY.md Release RocksDB 4.0.0 2015-09-09 16:01:03 -07:00
INSTALL.md Fixed a typo in INSTALL.md 2015-09-03 19:46:09 -07:00
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Makefile Fixed the build issue of rocksdbjavastaticrelease 2015-09-01 11:07:43 -07:00
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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 Optimistic Transactions 2015-05-29 14:36:35 -07:00
src.mk Refactored common code of Builder/CompactionJob out into a CompactionIterator 2015-09-10 14:35:25 -07:00
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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

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/