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Nathan Bronson 9c2cf9479b Fix for --allow_concurrent_memtable_write with batching 
Summary:
Concurrent memtable adds were incorrectly computing
the last sequence number for a write batch group when the
write batches were not solitary.  This is the cause of
https://github.com/facebook/mysql-5.6/issues/155

Test Plan:
1. unit tests
2. new unit test
3. parallel db_bench stress tests with batch size of 10 and asserts enabled

Reviewers: igor, sdong

Reviewed By: sdong

Subscribers: IslamAbdelRahman, MarkCallaghan, dhruba

Differential Revision: https://reviews.facebook.net/D53595
 		2016-02-01 20:41:57 -08:00
arcanist_util Add valgrind to pre-commit sandcastle testing 2016-01-26 10:40:57 -08:00
build_tools Update fbcode_config4.8.1.sh to use update_dependencies.sh 2016-01-26 12:13:27 -08:00
coverage Fix coverage script 2014-11-03 14:53:00 -08:00
db Fix for --allow_concurrent_memtable_write with batching 2016-02-01 20:41:57 -08:00
doc Lint everything 2015-11-16 12:56:21 -08:00
examples Fix examples 2015-12-16 17:04:46 +01:00
hdfs update posix env schedule call 2015-12-30 10:12:44 -08:00
include/rocksdb Merge pull request #967 from SherlockNoMad/ValueSize 2016-02-01 17:59:08 -08:00
java Changes for build on solaris 2016-01-19 04:45:21 +00:00
memtable [directory includes cleanup] Finish removing util->db dependencies 2016-01-26 10:49:24 -08:00
port Enable per-request buffer allocation in RandomAccessFile 2016-02-01 13:14:37 -08:00
table Fix issue in Iterator::Seek when using Block based filter block with prefix_extractor 2016-01-26 14:47:42 -08:00
third-party Enable MS compiler warning c4244. 2015-12-11 16:47:34 -08:00
tools ldb to support --column_family option 2016-01-25 14:58:18 -08:00
util PerfContext::ToString() add option to exclude zero counters 2016-02-01 13:41:13 -08:00
utilities transaction allocation perf improvements 2016-01-28 17:32:28 -08:00
.arcconfig Integrate Jenkins with Phabricator 2015-04-07 11:56:29 -07:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore New amalgamation target 2015-10-01 08:29:31 +13:00
.travis.yml Travis CI to disable ROCKSDB_LITE tests 2016-02-01 18:42:01 -08:00
AUTHORS Add AUTHORS file. Fix #203 2014-09-29 10:52:18 -07:00
CMakeLists.txt Add SstFileManager (component tracking all SST file in DBs and control the deletion rate) 2016-01-28 18:35:01 -08:00
CONTRIBUTING.md facebook accounts are not required for CLA signers 2014-07-08 05:57:54 -04:00
DUMP_FORMAT.md First version of rocksdb_dump and rocksdb_undump. 2015-06-19 16:24:36 -07:00
HISTORY.md Add SstFileManager (component tracking all SST file in DBs and control the deletion rate) 2016-01-28 18:35:01 -08:00
INSTALL.md Simple changes to support builds for ppc64[le] consistent with X86 2016-01-19 09:08:19 -06:00
LICENSE Fix copyright year 2014-03-12 12:06:58 -07:00
Makefile fix build for raspberry 2 2016-01-28 11:43:58 +01:00
PATENTS Update Patent Grant. 2015-04-13 10:33:43 +01:00
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 Optimistic Transactions 2015-05-29 14:36:35 -07:00
USERS.md Add Wingify to USERS.md 2016-01-28 01:04:49 +05:30
Vagrantfile RocksDB on FreeBSD support 2015-02-26 15:19:17 -08:00
WINDOWS_PORT.md Commit both PR and internal code review changes 2015-07-07 16:58:20 -07:00
appveyor.yml Exclude DBTest.FileCreationRandomFailure as a long running test 2015-11-17 13:54:13 -08:00
src.mk Add SstFileManager (component tracking all SST file in DBs and control the deletion rate) 2016-01-28 18:35:01 -08:00
thirdparty.inc Enable override to 3rd party linkage 2015-11-24 11:51:37 -08:00

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/