rocksdb

fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph

Siying Dong 95b0e89b5d Improve write buffer manager (and allow the size to be tracked in block cache) Summary: Improve write buffer manager in several ways: 1. Size is tracked when arena block is allocated, rather than every allocation, so that it can better track actual memory usage and the tracking overhead is slightly lower. 2. We start to trigger memtable flush when 7/8 of the memory cap hits, instead of 100%, and make 100% much harder to hit. 3. Allow a cache object to be passed into buffer manager and the size allocated by memtable can be costed there. This can help users have one single memory cap across block cache and memtable. Closes https://github.com/facebook/rocksdb/pull/2350 Differential Revision: D5110648 Pulled By: siying fbshipit-source-id: b4238113094bf22574001e446b5d88523ba00017		7 years ago
arcanist_util	Fix arc setting for Facebook internal tools	8 years ago
buckifier	update buckifer/TARGETS	7 years ago
build_tools	update buckifer/TARGETS	7 years ago
cache	Add GPLv2 as an alternative license.	7 years ago
cmake/modules	CMake: more MinGW fixes	7 years ago
coverage	Fix coverage script	10 years ago
db	Improve write buffer manager (and allow the size to be tracked in block cache)	7 years ago
docs	RocksDB 5.4.5 release blog post	7 years ago
env	Retire memenv https://github.com/facebook/rocksdb/pull/2082	7 years ago
examples	CMake: more MinGW fixes	7 years ago
hdfs	New API for background work in single thread pool	7 years ago
include/rocksdb	Improve write buffer manager (and allow the size to be tracked in block cache)	7 years ago
java	support merge and delete in file ingestion	7 years ago
memtable	Improve write buffer manager (and allow the size to be tracked in block cache)	7 years ago
monitoring	Core-local statistics	7 years ago
options	Improve write buffer manager (and allow the size to be tracked in block cache)	7 years ago
port	New API for background work in single thread pool	7 years ago
table	Pass CF ID to MemTableRepFactory	7 years ago
third-party	fixed typo	7 years ago
tools	Improve write buffer manager (and allow the size to be tracked in block cache)	7 years ago
util	Improve write buffer manager (and allow the size to be tracked in block cache)	7 years ago
utilities	Fixing blob db sequence number handling	7 years ago
.clang-format	A script that automatically reformat affected lines	11 years ago
.deprecated_arcconfig	Update ShipIt to honor TARGETS updates	7 years ago
.gitignore	Simple blob file dumper	7 years ago
.travis.yml	travis: test with xcode8.3 (OS X 10.12)	7 years ago
AUTHORS	Add AUTHORS file. Fix #203	10 years ago
CMakeLists.txt	Improve write buffer manager (and allow the size to be tracked in block cache)	7 years ago
CONTRIBUTING.md	facebook accounts are not required for CLA signers	10 years ago
COPYING	Add GPLv2 as an alternative license.	7 years ago
DEFAULT_OPTIONS_HISTORY.md	options.delayed_write_rate use the rate of rate_limiter by default.	7 years ago
DUMP_FORMAT.md	First version of rocksdb_dump and rocksdb_undump.	9 years ago
HISTORY.md	Improve write buffer manager (and allow the size to be tracked in block cache)	7 years ago
INSTALL.md	cross-platform compatibility improvements	7 years ago
LANGUAGE-BINDINGS.md	Adding Dlang to the list	7 years ago
LICENSE	Updated all copyright headers to the new format.	9 years ago
Makefile	Improve write buffer manager (and allow the size to be tracked in block cache)	7 years ago
PATENTS	Update Patent Grant.	9 years ago
README.md	Appveyor badge to show master branch	8 years ago
ROCKSDB_LITE.md	Optimistic Transactions	9 years ago
TARGETS	Improve write buffer manager (and allow the size to be tracked in block cache)	7 years ago
USERS.md	Update USERS.md add user Pika	8 years ago
Vagrantfile	Update Vagrant file (test internal phabricator workflow)	8 years ago
WINDOWS_PORT.md	Commit both PR and internal code review changes	9 years ago
appveyor.yml	Rework test running script.	7 years ago
src.mk	Improve write buffer manager (and allow the size to be tracked in block cache)	7 years ago
thirdparty.inc	Introduce XPRESS compresssion on Windows. (#1081 )	8 years ago

README.md

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

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/