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Siying Dong 02830a20f8 Add comments in db/dbformat.h
Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/5342

Differential Revision: D15485238

Pulled By: siying

fbshipit-source-id: a56b374584cb1d815c1173907a807d90b37d4dd6
2019-05-23 16:44:20 -07:00
buckifier Add copyright headers per FB open-source checkup tool. (#5199) 2019-04-18 10:55:01 -07:00
build_tools Fixes for build_detect_platform 2019-05-15 16:01:08 -07:00
cache Consolidate hash function used for non-persistent data in a new function (#5155) 2019-04-08 13:32:06 -07:00
cmake Make FindZLIB consistent with official definitions (#4823) 2019-01-02 12:49:57 -08:00
coverage Add copyright headers per FB open-source checkup tool. (#5199) 2019-04-18 10:55:01 -07:00
db Add comments in db/dbformat.h 2019-05-23 16:44:20 -07:00
docs Text lint all .gitignore files 2019-05-15 11:37:27 -07:00
env Break large file writes into 1GB chunks (#5213) 2019-05-15 14:20:24 -07:00
examples Support for single-primary, multi-secondary instances (#4899) 2019-03-26 16:45:31 -07:00
hdfs Add copyright headers per FB open-source checkup tool. (#5199) 2019-04-18 10:55:01 -07:00
include/rocksdb Use separate status code for column family drop and db shutdown in progress (#5275) 2019-05-20 10:47:32 -07:00
java Use separate status code for column family drop and db shutdown in progress (#5275) 2019-05-20 10:47:32 -07:00
memtable WriteBufferManager's dummy entry size to block cache 1MB -> 256KB (#5175) 2019-04-16 12:03:07 -07:00
monitoring Fix compilation errors for 32bits/LITE/ios build. (#5220) 2019-04-22 16:02:16 -07:00
options Pass OptionTypeInfo maps by const& (#5295) 2019-05-15 14:25:57 -07:00
port Remove PATENTS text from a few straggler files (#5326) 2019-05-21 16:22:35 -07:00
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third-party/gtest-1.7.0/fused-src/gtest remove bundled but unused fbson library (#5108) 2019-03-26 16:37:52 -07:00
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util Remove PATENTS text from a few straggler files (#5326) 2019-05-21 16:22:35 -07:00
utilities WritePrepared: Clarify the need for two_write_queues in unordered_write (#5313) 2019-05-20 07:49:20 -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 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.