rocksdb

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

Yanqin Jin 2309fd63bf Update column families' log number altogether after flushing during recovery (#5856 ) Summary: A bug occasionally shows up in crash test, and https://github.com/facebook/rocksdb/issues/5851 reproduces it. The bug can surface in the following way. 1. Database has multiple column families. 2. Between one DB restart, the last log file is corrupted in the middle (not the tail) 3. During restart, DB crashes between flushing between two column families. Then DB will fail to be opened again with error "SST file is ahead of WALs". Solution is to update the log number associated with each column family altogether after flushing all column families' memtables. The version edits should be written to a new MANIFEST. Only after writing to all these version edits succeed does RocksDB (atomically) points the CURRENT file to the new MANIFEST. Test plan (on devserver): ``` $make all && make check ``` Specifically ``` $make db_test2 $./db_test2 --gtest_filter=DBTest2.CrashInRecoveryMultipleCF ``` Also checked for compatibility as follows. Use this branch, run DBTest2.CrashInRecoveryMultipleCF and preserve the db directory. Then checkout 5.4, build ldb, and dump the MANIFEST. Pull Request resolved: https://github.com/facebook/rocksdb/pull/5856 Differential Revision: D17620818 Pulled By: riversand963 fbshipit-source-id: b52ce5969c9a8052cacec2bd805fcfb373589039		5 years ago
buckifier	Make buckifier python3 compatible (#5922 )	5 years ago
build_tools	Misc hashing updates / upgrades (#5909 )	5 years ago
cache	Misc hashing updates / upgrades (#5909 )	5 years ago
cmake	cmake: s/SNAPPY_LIBRARIES/snappy_LIBRARIES/ (#5687 )	5 years ago
coverage	Fix interpreter lines for files with python2-only syntax.	5 years ago
db	Update column families' log number altogether after flushing during recovery (#5856 )	5 years ago
docs	Blog post for write_unprepared (#5711 )	5 years ago
env	Add Env::SanitizeEnvOptions (#5885 )	5 years ago
examples	Apply formatter to recent 200+ commits. (#5830 )	5 years ago
file	Apply formatter to recent 200+ commits. (#5830 )	5 years ago
hdfs	Add copyright headers per FB open-source checkup tool. (#5199 )	5 years ago
include/rocksdb	Propagate SST and blob file numbers through the EventListener interface (#5962 )	5 years ago
java	Fix the rocksjava release Vagrant build on CentOS (#5901 )	5 years ago
logging	Apply formatter to recent 200+ commits. (#5830 )	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	Apply formatter to recent 200+ commits. (#5830 )	5 years ago
port	Fix block cache ID uniqueness for Windows builds (#5844 )	5 years ago
table	Misc hashing updates / upgrades (#5909 )	5 years ago
test_util	Apply formatter to recent 200+ commits. (#5830 )	5 years ago
third-party	Refactor/consolidate legacy Bloom implementation details (#5784 )	5 years ago
tools	CfConsistencyStressTest to validate key consistent across CFs in TestGet() (#5863 )	5 years ago
trace_replay	Misc hashing updates / upgrades (#5909 )	5 years ago
util	Misc hashing updates / upgrades (#5909 )	5 years ago
utilities	Misc hashing updates / upgrades (#5909 )	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 )	6 years ago
.travis.yml	Remove a webhook due to potential security concern (#5902 )	5 years ago
.watchmanconfig	Added .watchmanconfig file to rocksdb repo (#5593 )	5 years ago
AUTHORS	Update RocksDB Authors File	7 years ago
CMakeLists.txt	FilterPolicy consolidation, part 2/2 (#5966 )	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.	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	Update column families' log number altogether after flushing during recovery (#5856 )	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	5 years ago
LICENSE.Apache	Change RocksDB License	7 years ago
LICENSE.leveldb	Add back the LevelDB license file	7 years ago
Makefile	Include db_stress_tool in rocksdb tools lib (#5950 )	5 years ago
README.md	Replaced some words (#5877 )	5 years ago
ROCKSDB_LITE.md	Fix some typos in comments and docs.	6 years ago
TARGETS	FilterPolicy consolidation, part 2/2 (#5966 )	5 years ago
USERS.md	Add avrio to USERS.md (#5748 )	5 years ago
Vagrantfile	Adding CentOS 7 Vagrantfile & build script	6 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 )	5 years ago
appveyor.yml	New API to get all merge operands for a Key (#5604 )	5 years ago
defs.bzl	Change buckifier to support parameterized dependencies (#5648 )	5 years ago
issue_template.md	Add a template for issues	7 years ago
src.mk	FilterPolicy consolidation, part 2/2 (#5966 )	5 years ago
thirdparty.inc	Fix build jemalloc api (#5470 )	5 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.