rocksdb

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

sdong f10f135938 Fix regression bug of hash index with iterator total order seek (#6328 ) Summary: https://github.com/facebook/rocksdb/pull/6028 introduces a bug for hash index in SST files. If a table reader is created when total order seek is used, prefix_extractor might be passed into table reader as null. While later when prefix seek is used, the same table reader used, hash index is checked but prefix extractor is null and the program would crash. Fix the issue by fixing http://github.com/facebook/rocksdb/pull/6028 in the way that prefix_extractor is preserved but ReadOptions.total_order_seek is checked Also, a null pointer check is added so that a bug like this won't cause segfault in the future. Pull Request resolved: https://github.com/facebook/rocksdb/pull/6328 Test Plan: Add a unit test that would fail without the fix. Stress test that reproduces the crash would pass. Differential Revision: D19586751 fbshipit-source-id: 8de77690167ddf5a77a01e167cf89430b1bfba42		5 years ago
buckifier	PosixRandomAccessFile::MultiRead() to use I/O uring if supported (#5881 )	5 years ago
build_tools	Improve instructions to install formatter (#6162 )	5 years ago
cache	Remove key length assertion LRUHandle::CalcTotalCharge (#6115 )	5 years ago
cmake	cmake: do not build tests for Release build and cleanups (#5916 )	5 years ago
coverage	Fix interpreter lines for files with python2-only syntax.	6 years ago
db	Fix regression bug of hash index with iterator total order seek (#6328 )	5 years ago
db_stress_tool	Variable key length in db_stress (#6273 )	5 years ago
docs	Log warning for high bits/key in legacy Bloom filter (#6312 )	5 years ago
env	Fix some shadow warning (#6242 )	5 years ago
examples	Update example of optimistic transaction (#6074 )	5 years ago
file	Remove earlier partial BlobDB GC implementation (#6278 )	5 years ago
hdfs	Add copyright headers per FB open-source checkup tool. (#5199 )	6 years ago
include/rocksdb	Update version for next release, 6.7.0 (#6320 )	5 years ago
java	Access Maven Central over HTTPS (#6301 )	5 years ago
logging	Increase max_log_size in FlushJob to 1024 bytes (#6258 )	5 years ago
memory	Charge block cache for cache internal usage (#5797 )	5 years ago
memtable	Misc hashing updates / upgrades (#5909 )	5 years ago
monitoring	Apply formatter to recent 200+ commits. (#5830 )	5 years ago
options	Introduce a new storage specific Env API (#5761 )	5 years ago
port	Implement getfreespace for WinEnv (#6265 )	5 years ago
table	Fix regression bug of hash index with iterator total order seek (#6328 )	5 years ago
test_util	unordered_write incompatible with max_successive_merges (#6284 )	5 years ago
third-party	Apply formatter to some recent commits (#6138 )	5 years ago
tools	Revert "crash_test to enable block-based table hash index (#6310 )" (#6327 )	5 years ago
trace_replay	Misc hashing updates / upgrades (#5909 )	5 years ago
util	Warn on excessive keys for legacy Bloom filter with 32-bit hash (#6317 )	5 years ago
utilities	Correct pragma once problem with Bazel on Windows (#6321 )	5 years ago
.clang-format	A script that automatically reformat affected lines	11 years ago
.gitignore	Make buckifier python3 compatible (#5922 )	5 years ago
.lgtm.yml	Create lgtm.yml for LGTM.com C/C++ analysis (#4058 )	7 years ago
.travis.yml	Small tidy and speed up of the travis build (#6181 )	5 years ago
.watchmanconfig	Added .watchmanconfig file to rocksdb repo (#5593 )	6 years ago
AUTHORS	Update RocksDB Authors File	7 years ago
CMakeLists.txt	Introduce a new storage specific Env API (#5761 )	5 years ago
CODE_OF_CONDUCT.md	Adopt Contributor Covenant	5 years ago
CONTRIBUTING.md	Add Code of Conduct	7 years ago
COPYING	Add GPLv2 as an alternative license.	8 years ago
DEFAULT_OPTIONS_HISTORY.md	options.delayed_write_rate use the rate of rate_limiter by default.	8 years ago
DUMP_FORMAT.md	First version of rocksdb_dump and rocksdb_undump.	10 years ago
HISTORY.md	Fix regression bug of hash index with iterator total order seek (#6328 )	5 years ago
INSTALL.md	Update the version of the dependencies used by the RocksJava static build (#4761 )	6 years ago
LANGUAGE-BINDINGS.md	LANGUAGE-BINDINGS.md: mention python-rocksdb	6 years ago
LICENSE.Apache	Change RocksDB License	8 years ago
LICENSE.leveldb	Add back the LevelDB license file	8 years ago
Makefile	Fix a clang analyzer report, and 'analyze' make rule (#6244 )	5 years ago
README.md	Replaced some words (#5877 )	5 years ago
ROCKSDB_LITE.md	Fix some typos in comments and docs.	7 years ago
TARGETS	Introduce a new storage specific Env API (#5761 )	5 years ago
USERS.md	add user nebula (#6271 )	5 years ago
Vagrantfile	Adding CentOS 7 Vagrantfile & build script	7 years ago
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 )	6 years ago
appveyor.yml	Add Visual Studio 2015 to AppVeyor (#5446 )	5 years ago
defs.bzl	Add clarifying/instructive header to TARGETS and defs.bzl	5 years ago
issue_template.md	Add a template for issues	7 years ago
src.mk	Introduce a new storage specific Env API (#5761 )	5 years ago
thirdparty.inc	Fix build jemalloc api (#5470 )	6 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 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.