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zensan 78711524b7 In all the places where log records are read, there was a check that 
record.size() should not be less than 12.

This "magic number" seems to be the WriteBatch header (8 byte sequence
and 4 byte count).   Replaced all the places where "12" was used
by WriteBatchInternal::kHeader.
2016-03-30 23:05:22 +05:30
arcanist_util Updated all copyright headers to the new format. 2016-02-09 15:12:00 -08:00
build_tools Add support for db_test2 for dev and CI runs 2016-03-23 16:33:57 -07:00
coverage Fix coverage script 2014-11-03 14:53:00 -08:00
db In all the places where log records are read, there was a check that 2016-03-30 23:05:22 +05:30
doc Lint everything 2015-11-16 12:56:21 -08:00
examples Revert "Adding pin_l0_filter_and_index_blocks_in_cache feature." 2016-03-21 11:50:42 -07:00
hdfs Updated all copyright headers to the new format. 2016-02-09 15:12:00 -08:00
include/rocksdb Add comments to perf_context skip counters 2016-03-23 14:26:25 -07:00
java Revert "Adding pin_l0_filter_and_index_blocks_in_cache feature." 2016-03-21 11:50:42 -07:00
memtable Updated all copyright headers to the new format. 2016-02-09 15:12:00 -08:00
port Latest versions of Jemalloc library do not require je_init()/je_unint() 2016-03-17 11:25:20 -07:00
table Revert "Adding pin_l0_filter_and_index_blocks_in_cache feature." 2016-03-21 11:50:42 -07:00
third-party Fix the build break on Ubuntu 15.10 when gcc 5.2.1 is used 2016-03-15 10:30:10 -07:00
tools In all the places where log records are read, there was a check that 2016-03-30 23:05:22 +05:30
util Options settable tests to use a different special charactor 2016-03-22 16:21:53 -07:00
utilities Forge current file for checkpoint 2016-03-17 10:07:21 -07:00
.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 Ignore db_test2 2016-03-07 15:56:16 -08:00
.travis.yml Travis CI to disable ROCKSDB_LITE tests 2016-02-01 18:42:01 -08:00
appveyor.yml Exclude DBTest.FileCreationRandomFailure as a long running test 2015-11-17 13:54:13 -08:00
AUTHORS Add AUTHORS file. Fix #203 2014-09-29 10:52:18 -07:00
CMakeLists.txt Add unit tests for RepairDB 2016-03-18 15:18:42 -07:00
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 Update change log for 4.6 release 2016-03-12 13:51:57 -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 unit tests for RepairDB 2016-03-18 15:18:42 -07:00
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
src.mk Merge pull request #1026 from SherlockNoMad/Hist 2016-03-15 11:27:54 -07:00
thirdparty.inc Latest versions of Jemalloc library do not require je_init()/je_unint() 2016-03-17 11:25:20 -07:00
USERS.md Added quasardb to the USERS.md file 2016-03-14 23:48:28 +01:00
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

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/