A library that provides an embeddable, persistent key-value store for fast storage.
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Andrew Kryczka b00761eea6 Fix block cache ID uniqueness for Windows builds (#5844)
Summary:
Since we do not evict a file's blocks from block cache before that file
is deleted, we require a file's cache ID prefix is both unique and
non-reusable. However, the Windows functionality we were relying on only
guaranteed uniqueness. That meant a newly created file could be assigned
the same cache ID prefix as a deleted file. If the newly created file
had block offsets matching the deleted file, full cache keys could be
exactly the same, resulting in obsolete data blocks returned from cache
when trying to read from the new file.

We noticed this when running on FAT32 where compaction was writing out
of order keys due to reading obsolete blocks from its input files. The
functionality is documented as behaving the same on NTFS, although I
wasn't able to repro it there.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/5844

Test Plan:
we had a reliable repro of out-of-order keys on FAT32 that
was fixed by this change

Differential Revision: D17752442

fbshipit-source-id: 95d983f9196cf415f269e19293b97341edbf7e00
2019-10-11 18:19:31 -07:00
buckifier Change buckifier to support parameterized dependencies (#5648) 2019-08-02 10:55:17 -07:00
build_tools Remove deprecated RocksDBCommonHelper and cont_integration.sh (#5889) 2019-10-09 07:40:35 -07:00
cache Apply formatter to recent 200+ commits. (#5830) 2019-09-20 12:04:26 -07:00
cmake cmake: s/SNAPPY_LIBRARIES/snappy_LIBRARIES/ (#5687) 2019-08-16 15:49:23 -07:00
coverage Fix interpreter lines for files with python2-only syntax. 2019-07-09 10:51:37 -07:00
db Fix block cache ID uniqueness for Windows builds (#5844) 2019-10-11 18:19:31 -07:00
docs Blog post for write_unprepared (#5711) 2019-08-15 14:41:13 -07:00
env Fix block cache ID uniqueness for Windows builds (#5844) 2019-10-11 18:19:31 -07:00
examples Apply formatter to recent 200+ commits. (#5830) 2019-09-20 12:04:26 -07:00
file Apply formatter to recent 200+ commits. (#5830) 2019-09-20 12:04:26 -07:00
hdfs Add copyright headers per FB open-source checkup tool. (#5199) 2019-04-18 10:55:01 -07:00
include/rocksdb Support custom env in sst_dump (#5845) 2019-10-08 19:19:12 -07:00
java Fix the rocksjava release Vagrant build on CentOS (#5901) 2019-10-10 17:21:18 -07:00
logging Apply formatter to recent 200+ commits. (#5830) 2019-09-20 12:04:26 -07:00
memory Charge block cache for cache internal usage (#5797) 2019-09-16 15:26:21 -07:00
memtable Charge block cache for cache internal usage (#5797) 2019-09-16 15:26:21 -07:00
monitoring Apply formatter to recent 200+ commits. (#5830) 2019-09-20 12:04:26 -07:00
options Apply formatter to recent 200+ commits. (#5830) 2019-09-20 12:04:26 -07:00
port Fix block cache ID uniqueness for Windows builds (#5844) 2019-10-11 18:19:31 -07:00
table Fix block cache ID uniqueness for Windows builds (#5844) 2019-10-11 18:19:31 -07:00
test_util Apply formatter to recent 200+ commits. (#5830) 2019-09-20 12:04:26 -07:00
third-party Refactor/consolidate legacy Bloom implementation details (#5784) 2019-09-16 16:17:09 -07:00
tools Revert "Enable partitioned index/filter in stress tests (#5895)" (#5904) 2019-10-10 19:19:39 -07:00
trace_replay Block cache analyzer: Support reading from human readable trace file. (#5679) 2019-08-09 13:13:54 -07:00
util MultiGet batching in memtable (#5818) 2019-10-10 09:39:39 -07:00
utilities Fix block cache ID uniqueness for Windows builds (#5844) 2019-10-11 18:19:31 -07:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore Block cache simulator: Add pysim to simulate caches using reinforcement learning. (#5610) 2019-07-26 14:41:13 -07:00
.lgtm.yml Create lgtm.yml for LGTM.com C/C++ analysis (#4058) 2018-06-26 12:43:04 -07:00
.travis.yml Remove a webhook due to potential security concern (#5902) 2019-10-10 18:05:16 -07:00
.watchmanconfig Added .watchmanconfig file to rocksdb repo (#5593) 2019-07-19 15:00:33 -07:00
appveyor.yml New API to get all merge operands for a Key (#5604) 2019-08-06 14:26:44 -07:00
AUTHORS Update RocksDB Authors File 2017-10-18 14:42:10 -07:00
CMakeLists.txt filter_bench - a prelim tool for SST filter benchmarking (#5825) 2019-10-07 20:10:53 -07:00
CODE_OF_CONDUCT.md Adopt Contributor Covenant 2019-08-29 23:21:01 -07:00
CONTRIBUTING.md Add Code of Conduct 2017-12-05 18:42:35 -08:00
COPYING Add GPLv2 as an alternative license. 2017-04-27 18:06:12 -07:00
DEFAULT_OPTIONS_HISTORY.md options.delayed_write_rate use the rate of rate_limiter by default. 2017-05-24 09:58:24 -07:00
defs.bzl Change buckifier to support parameterized dependencies (#5648) 2019-08-02 10:55:17 -07:00
DUMP_FORMAT.md First version of rocksdb_dump and rocksdb_undump. 2015-06-19 16:24:36 -07:00
HISTORY.md Support custom env in sst_dump (#5845) 2019-10-08 19:19:12 -07:00
INSTALL.md Update the version of the dependencies used by the RocksJava static build (#4761) 2018-12-18 20:25:43 -08:00
issue_template.md Add a template for issues 2017-09-29 11:41:28 -07:00
LANGUAGE-BINDINGS.md LANGUAGE-BINDINGS.md: mention python-rocksdb 2019-03-20 11:10:48 -07:00
LICENSE.Apache Change RocksDB License 2017-07-15 16:11:23 -07:00
LICENSE.leveldb Add back the LevelDB license file 2017-07-16 18:42:18 -07:00
Makefile filter_bench - a prelim tool for SST filter benchmarking (#5825) 2019-10-07 20:10:53 -07:00
README.md Replaced some words (#5877) 2019-10-07 12:28:09 -07:00
ROCKSDB_LITE.md Fix some typos in comments and docs. 2018-03-08 10:27:25 -08:00
src.mk Divide file_reader_writer.h and .cc (#5803) 2019-09-16 10:33:51 -07:00
TARGETS Divide file_reader_writer.h and .cc (#5803) 2019-09-16 10:33:51 -07:00
thirdparty.inc Fix build jemalloc api (#5470) 2019-06-24 17:40:32 -07:00
USERS.md Add avrio to USERS.md (#5748) 2019-09-15 21:29:09 -07:00
Vagrantfile Adding CentOS 7 Vagrantfile & build script 2018-02-26 15:27:17 -08:00
WINDOWS_PORT.md #5145 , rename port/dirent.h to port/port_dirent.h to avoid compile err when use port dir as header dir output (#5152) 2019-04-04 11:38:19 -07:00

RocksDB: A Persistent Key-Value Store for Flash and RAM Storage

Linux/Mac Build Status Windows Build status PPC64le 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 especially 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/

License

RocksDB is dual-licensed under both the GPLv2 (found in the COPYING file in the root directory) and Apache 2.0 License (found in the LICENSE.Apache file in the root directory). You may select, at your option, one of the above-listed licenses.