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sdong 09899f0b51 DB::Open() to automatically increase thread pool size if it is smaller than max number of parallel compactions or flushes 
Summary:
With the patch, thread pool size will be automatically increased if DB's options ask for more parallelism of compactions or flushes.

Too many users have been confused by the API. Change it to make it harder for users to make mistakes

Test Plan: Add two unit tests to cover the function.

Reviewers: yhchiang, rven, igor, MarkCallaghan, ljin

Reviewed By: ljin

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D27555
 		2014-11-03 17:22:34 -08:00
build_tools Revamp our build tools 2014-11-03 14:00:45 -08:00
coverage Fix coverage script 2014-11-03 14:53:00 -08:00
db DB::Open() to automatically increase thread pool size if it is smaller than max number of parallel compactions or flushes 2014-11-03 17:22:34 -08:00
doc Remove seek compaction 2014-06-20 10:23:02 +02:00
examples add make clean in examples makefile 2014-11-03 04:42:28 +08:00
hdfs DB::Open() to automatically increase thread pool size if it is smaller than max number of parallel compactions or flushes 2014-11-03 17:22:34 -08:00
helpers/memenv Expose in memory Env to the world 2014-04-14 12:28:15 -07:00
include DB::Open() to automatically increase thread pool size if it is smaller than max number of parallel compactions or flushes 2014-11-03 17:22:34 -08:00
java [RocksJava] Build fix after options refactoring 2014-11-02 23:48:40 +01:00
linters Removed code which prevents `arc lint` from working properly. 2014-10-07 17:40:19 +02:00
port Turn on -Wshadow 2014-10-31 11:59:54 -07:00
table Turn on -Wshadow 2014-10-31 11:59:54 -07:00
third-party/rapidjson Fix a rapidjson compile error in mac. 2014-06-23 17:09:24 -06:00
tools Revert "Fix lint errors and coding style of ldb related codes." 2014-10-31 19:22:49 -07:00
util DB::Open() to automatically increase thread pool size if it is smaller than max number of parallel compactions or flushes 2014-11-03 17:22:34 -08:00
utilities Move convenience.h to /include 2014-10-31 12:08:43 -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 Ignore IntelliJ idea project files and ignore java/out folder 2014-10-21 15:52:27 +01:00
.travis.yml Remove java build from travis 2014-10-23 15:37:51 -07:00
AUTHORS Add AUTHORS file. Fix #203 2014-09-29 10:52:18 -07:00
CONTRIBUTING.md facebook accounts are not required for CLA signers 2014-07-08 05:57:54 -04:00
HISTORY.md DB::Open() to automatically increase thread pool size if it is smaller than max number of parallel compactions or flushes 2014-11-03 17:22:34 -08:00
INSTALL.md Update INSTALL.md 2014-10-01 11:15:42 -07:00
LICENSE Fix copyright year 2014-03-12 12:06:58 -07:00
Makefile introduce TestMemEnv and use it in db_test 2014-10-31 15:08:10 -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
Vagrantfile Package generation for Ubuntu and CentOS 2014-09-29 16:09:46 -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/