A library that provides an embeddable, persistent key-value store for fast storage.
Go to file
sdong d286b5df90 DBIter to out extra keys with higher sequence numbers when changing direction from forward to backward
Summary:
When DBIter changes iterating direction from forward to backward, it might see some much larger keys with higher sequence ID. With this commit, these rows will be actively filtered out. It should fix existing disabled tests in db_iter_test.

This may not be a perfect fix, but it introduces least impact on existing codes, in order to be safe.

Test Plan:
Enable existing tests and make sure they pass. Add a new test DBIterWithMergeIterTest.InnerMergeIteratorDataRace8.
Also run all existing tests.

Reviewers: yhchiang, rven, anthony, IslamAbdelRahman, kradhakrishnan, igor

Reviewed By: igor

Subscribers: leveldb, dhruba

Differential Revision: https://reviews.facebook.net/D45567
2015-08-26 13:01:39 -07:00
arcanist_util Fix linters on non-fb machines 2015-08-11 11:36:12 -07:00
build_tools Upgrading jemalloc from 3.6.0 to the latest for fbcode+gcc 4.8.1 2015-08-04 16:35:26 -07:00
coverage Fix coverage script 2014-11-03 14:53:00 -08:00
db DBIter to out extra keys with higher sequence numbers when changing direction from forward to backward 2015-08-26 13:01:39 -07:00
doc Remove seek compaction 2014-06-20 10:23:02 +02:00
examples Fix compact_files_example 2015-08-25 12:29:44 -07:00
hdfs [Cleanup] Remove RandomRWFile 2015-08-12 10:18:59 -07:00
include/rocksdb Correct the comment for GetProperty() API. 2015-08-25 16:45:23 -07:00
java Update JAVA-HISTORY.md for v3.13 2015-08-04 18:12:58 -07:00
port s/NOEXCEPT/ROCKSDB_NOEXCEPT 2015-08-25 16:34:39 -07:00
table Expose per-level aggregated table properties via GetProperty() 2015-08-25 12:03:54 -07:00
third-party "make format" against last 10 commits 2015-07-13 13:50:18 -07:00
tools Fix benchmark report script 2015-08-22 12:18:00 -07:00
util Fix compact_files_example 2015-08-25 12:29:44 -07:00
utilities s/NOEXCEPT/ROCKSDB_NOEXCEPT 2015-08-25 16:34:39 -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 Windows Port from Microsoft 2015-07-01 16:13:56 -07:00
.travis.yml Another attempt at adding the Java API and tests to the travis build 2015-07-28 11:52:11 +01:00
appveyor.yml Add auto-build manifest for appveyor 2015-08-07 15:37:46 -07:00
AUTHORS Add AUTHORS file. Fix #203 2014-09-29 10:52:18 -07:00
CMakeLists.txt Fix Windows build 2015-08-25 11:02:31 -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 Moving sequence number compaction variables from SubCompactionState to CompactionJob 2015-08-25 14:03:10 -07:00
INSTALL.md Commit both PR and internal code review changes 2015-07-07 16:58:20 -07:00
LICENSE Fix copyright year 2014-03-12 12:06:58 -07:00
Makefile Add a 'tools' target. 2015-08-13 10:19:53 -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 Common base class for transactions 2015-08-24 19:09:43 -07:00
thirdparty.inc Conditional use of third-party libraries 2015-07-09 14:42:41 -07:00
USERS.md Add Yahoo's blog post about Sherpa to USERS.md 2015-06-09 12:55:58 -07:00
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

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/