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A library that provides an embeddable, persistent key-value store for fast storage.
2,204 Commits 152 Branches 236 Tags 271 MiB
C++ 82.1%
Java 10.3%
C 2.5%
Python 1.7%
Perl 1.1%
Other 2.1%
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sdong 011241bb99 DB::Flush() Do not wait for background threads when there is nothing in mem table 
Summary:
When we have multiple column families, users can issue Flush() on every column families to make sure everything is flushes, even if some of them might be empty. By skipping the waiting for empty cases, it can be greatly speed up.

Still wait for people's comments before writing unit tests for it.

Test Plan: Will write a unit test to make sure it is correct.

Reviewers: ljin, yhchiang, igor

Reviewed By: igor

Subscribers: leveldb, dhruba

Differential Revision: https://reviews.facebook.net/D22953
2014-09-08 13:40:42 -07:00
build_tools Add db_bench with lots of column families to regression tests 2014-09-05 14:20:18 -07:00
coverage Disable the html-based coverage report by default 2014-02-06 12:58:13 -08:00
db DB::Flush() Do not wait for background threads when there is nothing in mem table 2014-09-08 13:40:42 -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 Push- instead of pull-model for managing Write stalls 2014-09-08 11:20:25 -07:00
java Remove path with arena==nullptr from NewInternalIterator 2014-09-04 17:40:41 -07:00
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 Implement full filter for block based table. 2014-09-08 10:37:05 -07:00
third-party/rapidjson Fix a rapidjson compile error in mac. 2014-06-23 17:09:24 -06:00
tools Implement full filter for block based table. 2014-09-08 10:37:05 -07:00
util Push- instead of pull-model for managing Write stalls 2014-09-08 11:20:25 -07:00
utilities Add missing break statement 2014-09-05 20:50:29 -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 Push- instead of pull-model for managing Write stalls 2014-09-08 11:20:25 -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 Push- instead of pull-model for managing Write stalls 2014-09-08 11:20:25 -07:00
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/