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A library that provides an embeddable, persistent key-value store for fast storage.
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Albert Hse-Lin Chen cc8d16efd6 Fixed minor typo in comment for MergeOperator::FullMergeV2() (#6759) 
Summary:
Fixed minor typo in comment for FullMergeV2().
Last operand up to snapshot should be +4 instead of +3.

Signed-off-by: Albert Hse-Lin Chen <hselin@kalista.io>
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6759

Reviewed By: cheng-chang

Differential Revision: D21260295

Pulled By: zhichao-cao

fbshipit-source-id: cc942306f246c8606538feb30bfdf6df9fb6c54e
2020-04-27 14:44:47 -07:00
.circleci Migrate AppVeyor to CircleCI (#6518) 2020-03-13 21:58:51 -07:00
buckifier Update buckifier to unblock future internal release (#6726) 2020-04-26 17:35:37 -07:00
build_tools C++20 compatibility (#6697) 2020-04-20 13:24:25 -07:00
cache Stats for redundant insertions into block cache (#6681) 2020-04-27 13:20:27 -07:00
cmake C++20 compatibility (#6697) 2020-04-20 13:24:25 -07:00
coverage Update a few scripts to be python3 compatible (#6525) 2020-03-24 21:00:27 -07:00
db Stats for redundant insertions into block cache (#6681) 2020-04-27 13:20:27 -07:00
db_stress_tool Disable O_DIRECT in stress test when db directory does not support direct IO (#6727) 2020-04-25 00:01:03 -07:00
docs Log warning for high bits/key in legacy Bloom filter (#6312) 2020-01-17 19:37:35 -08:00
env Fix unused variable of r in release mode (#6750) 2020-04-24 15:14:13 -07:00
examples Add a ConfigOptions for use in comparing objects and converting to/from strings (#6389) 2020-04-21 17:38:17 -07:00
file Reduce memory copies when fetching and uncompressing blocks from SST files (#6689) 2020-04-24 15:32:56 -07:00
hdfs Add IsDirectory() to Env and FS (#6711) 2020-04-17 14:39:18 -07:00
include/rocksdb Fixed minor typo in comment for MergeOperator::FullMergeV2() (#6759) 2020-04-27 14:44:47 -07:00
java Add a ConfigOptions for use in comparing objects and converting to/from strings (#6389) 2020-04-21 17:38:17 -07:00
logging Fix info log source file display length (#5824) 2020-04-08 20:18:08 -07:00
memory C++20 compatibility (#6697) 2020-04-20 13:24:25 -07:00
memtable C++20 compatibility (#6697) 2020-04-20 13:24:25 -07:00
monitoring Stats for redundant insertions into block cache (#6681) 2020-04-27 13:20:27 -07:00
options Reduce memory copies when fetching and uncompressing blocks from SST files (#6689) 2020-04-24 15:32:56 -07:00
port C++20 compatibility (#6697) 2020-04-20 13:24:25 -07:00
table Stats for redundant insertions into block cache (#6681) 2020-04-27 13:20:27 -07:00
test_util Disable O_DIRECT in stress test when db directory does not support direct IO (#6727) 2020-04-25 00:01:03 -07:00
third-party C++20 compatibility (#6697) 2020-04-20 13:24:25 -07:00
tools Allow sst_dump to check size of different compression levels and report time (#6634) 2020-04-27 12:36:16 -07:00
trace_replay Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
util Stats for redundant insertions into block cache (#6681) 2020-04-27 13:20:27 -07:00
utilities Add a ConfigOptions for use in comparing objects and converting to/from strings (#6389) 2020-04-21 17:38:17 -07:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
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.watchmanconfig Added .watchmanconfig file to rocksdb repo (#5593) 2019-07-19 15:00:33 -07:00
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AUTHORS Update RocksDB Authors File 2017-10-18 14:42:10 -07:00
CMakeLists.txt Reduce memory copies when fetching and uncompressing blocks from SST files (#6689) 2020-04-24 15:32:56 -07:00
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
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DUMP_FORMAT.md First version of rocksdb_dump and rocksdb_undump. 2015-06-19 16:24:36 -07:00
HISTORY.md Allow sst_dump to check size of different compression levels and report time (#6634) 2020-04-27 12:36:16 -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
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LANGUAGE-BINDINGS.md LANGUAGE-BINDINGS.md: mention python-rocksdb 2019-03-20 11:10:48 -07:00
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ROCKSDB_LITE.md Fix some typos in comments and docs. 2018-03-08 10:27:25 -08:00
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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 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.