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agiardullo 200080ed72 Improve snapshot handling for Transaction reinitialization 
Summary: Previously, reusing a transaction (by passing it as an argument to BeginTransaction) would not clear the transaction's snapshot.  This is not a clear, well-definited behavior.

Test Plan: improved test

Reviewers: sdong, IslamAbdelRahman, horuff, jkedgar

Reviewed By: jkedgar

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D55053
 		2016-03-07 13:28:11 -08:00
arcanist_util Updated all copyright headers to the new format. 2016-02-09 15:12:00 -08:00
build_tools Update dependencies / Fix Clang 2016-03-07 12:57:19 -08:00
coverage Fix coverage script 2014-11-03 14:53:00 -08:00
db Change Property name from "rocksdb.current_version_number" to "rocksdb.current-super-version-number" 2016-03-04 18:15:29 -08:00
doc Lint everything 2015-11-16 12:56:21 -08:00
examples Updated all copyright headers to the new format. 2016-02-09 15:12:00 -08:00
hdfs Updated all copyright headers to the new format. 2016-02-09 15:12:00 -08:00
include/rocksdb Change Property name from "rocksdb.current_version_number" to "rocksdb.current-super-version-number" 2016-03-04 18:15:29 -08:00
java Updated all copyright headers to the new format. 2016-02-09 15:12:00 -08:00
memtable Updated all copyright headers to the new format. 2016-02-09 15:12:00 -08:00
port Implement ConsistentChildrenAttribute 2016-02-19 14:20:34 -08:00
table Add Iterator Property rocksdb.iterator.version_number 2016-03-02 16:23:59 -08:00
third-party Updated all copyright headers to the new format. 2016-02-09 15:12:00 -08:00
tools Update benchmarks used to measure subcompaction performance 2016-03-04 12:32:11 -08:00
util Use pure if-then check instead of assert in EraseColumnFamilyInfo 2016-03-04 16:03:31 -08:00
utilities Improve snapshot handling for Transaction reinitialization 2016-03-07 13:28:11 -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 Iterator Property rocksdb.iterator.version_number 2016-03-02 16:23:59 -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 Change BlockBasedTableOptions.format_version default to 2 2016-03-01 14:28:52 -08:00
INSTALL.md Simple changes to support builds for ppc64[le] consistent with X86 2016-01-19 09:08:19 -06:00
LICENSE Updated all copyright headers to the new format. 2016-02-09 15:12:00 -08:00
Makefile Add Iterator Property rocksdb.iterator.version_number 2016-03-02 16:23:59 -08:00
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 IOStatsContext::ToString() add option to exclude zero counters 2016-02-23 10:26:24 -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/