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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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Yueh-Hsuan Chiang faa8d21922 Improve an assertion in RandomGenerator::Generate() in db_bench. 
Summary:
RandomGenerator::Generate() currently has an assertion len < data_.size().
However, it is actually fine to have len == data_.size().
This diff change the assertion to len <= data_.size().

Test Plan:
make db_bench
./db_bench

Reviewers: haobo, sdong, ljin

Reviewed By: ljin

Subscribers: leveldb

Differential Revision: https://reviews.facebook.net/D19269
2014-06-24 15:29:28 -06:00
build_tools escaped the special characters and added a dot 2014-06-24 00:14:02 -05:00
coverage Disable the html-based coverage report by default 2014-02-06 12:58:13 -08:00
db Improve an assertion in RandomGenerator::Generate() in db_bench. 2014-06-24 15:29:28 -06:00
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 [RocksDB] allow LDB tool to have customized key formatter 2014-06-23 15:35:40 -07:00
java [Java] Enable compression_ratio option in DbBenchmark.java 2014-06-24 15:12:36 -06:00
linters allow lambda function syntax in cpplint 2014-02-20 12:47:05 -08:00
port Add separate Read/WriteUnlock methods in MutexRW. 2014-06-16 15:41:46 -07:00
table Fix compile 2014-06-20 10:36:48 +02:00
third-party/rapidjson Fix a rapidjson compile error in mac. 2014-06-23 17:09:24 -06:00
tools Fix compile error in reduce_levels_test. 2014-06-23 17:48:20 -06:00
util Revert the default setting of InitFromCmdLineArgs(). 2014-06-23 18:51:00 -06:00
utilities fix valgrind test 2014-06-20 15:22:11 +02:00
.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 Add .swp to gitignore 2014-05-16 13:17:29 -07:00
.travis.yml Turn off travis notifications 2014-05-14 16:08:02 -07:00
CONTRIBUTING.md New CLA form 2014-04-22 09:12:19 -07:00
HISTORY.md [RocksDB] history change for 3.2 2014-06-23 11:28:52 -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 JSONDocument 2014-06-20 11:14:14 +02:00
PATENTS Fix the patent format 2013-10-16 15:37:32 -07:00
README.md Update README.md 2014-06-23 15:58:54 -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 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/