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Ari Ekmekji 2f8d71ec05 Moving sequence number compaction variables from SubCompactionState to CompactionJob
Summary:
It was pointed out to me that the members of SubCompactionState
'earliest_snapshot', 'latest_snapshot' and 'visible_at_tip' are never
modified by the subcompactions, so they can stay as global varaibles
instead to make things simpler.

Test Plan: make all && make check

Reviewers: sdong, igor, noetzli, anthony, yhchiang

Reviewed By: yhchiang

Subscribers: dhruba

Differential Revision: https://reviews.facebook.net/D45477
2015-08-25 14:03:10 -07:00
arcanist_util
build_tools
coverage
db
doc
examples
hdfs
include/rocksdb
java
port
table
third-party
tools
util
utilities
.arcconfig
.clang-format
.gitignore
.travis.yml
appveyor.yml
AUTHORS
CMakeLists.txt
CONTRIBUTING.md
DUMP_FORMAT.md
HISTORY.md
INSTALL.md
LICENSE
Makefile
PATENTS
README.md
ROCKSDB_LITE.md
src.mk
thirdparty.inc
USERS.md
Vagrantfile
WINDOWS_PORT.md

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

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/