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A library that provides an embeddable, persistent key-value store for fast storage.
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C++ 82.1%
Java 10.3%
C 2.5%
Python 1.7%
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fyrz 5340484266 Built-in comparator(s) in RocksJava 
Extended Built-in comparators with ReverseBytewiseComparator.

Reverse key handling is under certain conditions essential. E.g. while
using timestamp versioned data.

As native-comparators were not available using JAVA-API. Both built-in comparators
were exposed via JNI to be set upon database creation time.
2014-09-26 10:35:12 +02:00
build_tools Enable no-fbcode RocksDB build 2014-09-19 09:27:16 -07:00
coverage Disable the html-based coverage report by default 2014-02-06 12:58:13 -08:00
db CompactedDBImpl::MultiGet() for better CuckooTable performance 2014-09-25 13:34:51 -07:00
doc Remove seek compaction 2014-06-20 10:23:02 +02:00
examples Make it easier to start using RocksDB 2014-05-10 10:49:33 -07:00
hdfs hdfs cleanup and compile test against CDH 4.4. 2014-05-20 17:22:12 -04:00
helpers/memenv Expose in memory Env to the world 2014-04-14 12:28:15 -07:00
include Built-in comparator(s) in RocksJava 2014-09-26 10:35:12 +02:00
java Built-in comparator(s) in RocksJava 2014-09-26 10:35:12 +02:00
linters allow lambda function syntax in cpplint 2014-02-20 12:47:05 -08:00
port Avoid off-by-one error when using readlink 2014-09-05 20:50:29 -07:00
table delay initialization of cuckoo table iterator 2014-09-25 16:45:37 -07:00
third-party/rapidjson Fix a rapidjson compile error in mac. 2014-06-23 17:09:24 -06:00
tools Fix unit tests errors 2014-09-18 13:32:44 -07:00
util Built-in comparator(s) in RocksJava 2014-09-26 10:35:12 +02:00
utilities CompactedDBImpl::MultiGet() for better CuckooTable performance 2014-09-25 13:34:51 -07:00
.arcconfig Improve/fix bugs for the cpp linter 2014-02-13 17:48:11 -08:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore Changes to support unity build: 2014-08-11 13:22:47 -04:00
.travis.yml Fix travis builds 2014-09-04 10:23:45 -07:00
CONTRIBUTING.md facebook accounts are not required for CLA signers 2014-07-08 05:57:54 -04:00
HISTORY.md Remove allow_thread_local 2014-09-24 13:12:16 -07:00
INSTALL.md specify the command to install build_tools/mac-install-gflags.sh file in doc 2014-06-17 17:03:21 -05:00
LICENSE Fix copyright year 2014-03-12 12:06:58 -07:00
Makefile Resolving merge conflict 2014-09-23 16:00:54 -07:00
PATENTS Fix the patent format 2013-10-16 15:37:32 -07:00
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 RocksDBLite 2014-04-15 13:39:26 -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/