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A library that provides an embeddable, persistent key-value store for fast storage.
4,672 Commits 152 Branches 236 Tags 271 MiB
C++ 82.1%
Java 10.3%
C 2.5%
Python 1.7%
Perl 1.1%
Other 2.1%
2c1db5ea51
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Nathan Bronson 2c1db5ea51 always invalidate sequential-insertion cache for concurrent skiplist adds 
Summary:
InlineSkipList::InsertConcurrently should invalidate the
sequential-insertion cache prev_[] for all inserts of multi-level nodes,
not just those that increase the height of the skip list.  The invariant
for prev_ is that prev_[i] (i > 0) is supposed to be the predecessor of
prev_[0] at level i.  Before this diff InsertConcurrently could violate
this constraint when inserting a multi-level node after prev_[i] but
before prev_[0].

This diff also reenables kConcurrentSkipList as db_test's
MultiThreaded/MultiThreadedDBTest.MultiThreaded/29.

Test Plan:
1. unit tests
2. temporarily hack kConcurrentSkipList timing so that it is fast but has a 1.5% failure rate on my dev box (1ms stagger on thread launch, 1s test duration, failure rate baseline over 1000 runs)
3. observe 1000 passes post-fix

Reviewers: igor, sdong

Reviewed By: sdong

Subscribers: MarkCallaghan, dhruba

Differential Revision: https://reviews.facebook.net/D53751
2016-02-03 11:08:16 -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 always invalidate sequential-insertion cache for concurrent skiplist adds 2016-02-03 11:08:16 -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 Eliminate duplicated property constants 2016-02-02 19:14:56 -08:00
java Adding support for Windows JNI build - fix Java unit test for release build of JNI DLL 2016-02-02 09:45:18 +01:00
memtable [directory includes cleanup] Finish removing util->db dependencies 2016-01-26 10:49:24 -08:00
port Making use of GetSystemTimePreciseAsFileTime dynamic - code review fixes 2016-02-02 10:23:56 +01:00
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 Skip some of the non-critical tests in ./tools/run_flash_bench.sh 2016-02-03 09:56:56 -08:00
util PerfContext::ToString() add option to exclude zero counters 2016-02-01 13:41:13 -08:00
utilities Removing data race from expirable transactions 2016-02-02 18:37:44 -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
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 Adding support for Windows JNI build 2016-02-02 09:11:37 +01:00
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 Generate tags for *.c files 2016-02-02 14:52:49 -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
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
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

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/