A library that provides an embeddable, persistent key-value store for fast storage.
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Zhongyi Xie c88c57cde1 Tweak external file ingestion seqno logic under universal compaction
Summary:
Right now it is possible that a file gets assigned to L0 but also assigned the seqno from a higher level which it doesn't fit
Under the current impl, it is possibe that seqno in lower levels (Ln) can be equal to smallest seqno of higher levels (Ln-1), which is undesirable from universal compaction's point of view.
This should fix the intermittent failure of `ExternalSSTFileBasicTest.IngestFileWithGlobalSeqnoPickedSeqno`
Closes https://github.com/facebook/rocksdb/pull/3411

Differential Revision: D6813802

Pulled By: miasantreble

fbshipit-source-id: 693d0462fa94725ccfb9d8858743e6d2d9992d14
2018-02-15 14:13:39 -08:00
buckifier Suppress lint in old files 2018-01-29 12:56:42 -08:00
build_tools Suppress lint in old files 2018-01-29 12:56:42 -08:00
cache Minor typo in comment (s/pro/pri) 2018-02-03 18:27:14 -08:00
cmake add missing config checks to CMakeLists.txt 2017-11-30 22:57:00 -08:00
coverage Suppress lint in old files 2018-01-29 12:56:42 -08:00
db Tweak external file ingestion seqno logic under universal compaction 2018-02-15 14:13:39 -08:00
docs Adding blog post for 5.10.2 release 2018-02-13 11:56:59 -08:00
env Suppress unused warnings 2018-02-02 12:27:07 -08:00
examples Pinnableslice examples and blog post 2017-08-24 12:26:07 -07:00
hdfs Suppress lint in old files 2018-01-29 12:56:42 -08:00
include/rocksdb WritePrepared Txn: use TransactionDBWriteOptimizations (2nd attempt) 2018-02-12 16:43:40 -08:00
java Java: Add copy constructors for various option classes 2018-02-02 10:57:28 -08:00
memtable WritePrepared Txn: Duplicate Keys, Memtable part 2018-01-31 18:57:07 -08:00
monitoring Compilation fixes for powerpc build, -Wparentheses-equality error and missing header guards 2018-02-09 14:12:43 -08:00
options options: Fix coverity issues 2018-02-01 14:27:42 -08:00
port Explictly fail writes if key or value is not smaller than 4GB 2018-02-09 14:57:54 -08:00
table Customized BlockBasedTableIterator and LevelIterator 2018-02-12 17:12:25 -08:00
third-party Enable MSVC W4 with a few exceptions. Fix warnings and bugs 2017-10-19 10:57:12 -07:00
tools db_bench separate options for partition index and filters 2018-02-12 14:57:13 -08:00
util Direct I/O writable file should do fsync in Close() 2018-02-13 16:27:11 -08:00
utilities fix wrong indentation 2018-02-15 11:13:37 -08:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore Remove leftover references to phutil_module_cache 2017-08-23 12:12:21 -07:00
.travis.yml CMake cross platform Java support and add JNI to travis 2017-11-28 12:27:53 -08:00
appveyor.yml Upgrade Appveyor to VS2017 2018-02-01 13:57:01 -08:00
AUTHORS Update RocksDB Authors File 2017-10-18 14:42:10 -07:00
CMakeLists.txt CMake changes for CRC32 Optimization on PowerPC 2018-01-23 16:57:11 -08:00
CODE_OF_CONDUCT.md Add Code of Conduct 2017-12-05 18:42:35 -08:00
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
DUMP_FORMAT.md First version of rocksdb_dump and rocksdb_undump. 2015-06-19 16:24:36 -07:00
HISTORY.md Add delay before flush in CompactRange to avoid write stalling 2018-02-12 15:42:47 -08:00
INSTALL.md FreeBSD build support for RocksDB and RocksJava 2018-01-11 13:29:55 -08:00
issue_template.md Add a template for issues 2017-09-29 11:41:28 -07:00
LANGUAGE-BINDINGS.md Add Nim to the list of language bindings 2018-01-29 09:57:46 -08:00
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 Suppress UBSAN error in finer guanularity 2018-02-13 12:18:07 -08:00
README.md Add Jenkins for PPC64le build status badge 2018-01-11 14:57:45 -08:00
ROCKSDB_LITE.md Optimistic Transactions 2015-05-29 14:36:35 -07:00
src.mk Refactor ReadBlockContents() 2017-12-11 15:27:32 -08:00
TARGETS WritePrepared Txn: make buck tests parallel 2017-12-18 14:42:09 -08:00
thirdparty.inc Make Windows dep switches compatible with other builds 2018-01-05 14:56:54 -08:00
USERS.md Added ProfaneDB 2017-11-19 10:11:44 -08:00
Vagrantfile Update Vagrant file (test internal phabricator workflow) 2016-10-28 15:39:19 -07:00
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

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 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/