A library that provides an embeddable, persistent key-value store for fast storage.
Go to file
Kai Liu e19bad9bbd Fix some "make format" issue
Summary:
* make sure when some pre-check fails, the script won't halt immediately.
* change fburl to google's short url.
* Fix a bug in this script: now it checks the uncommitted code only.

Test Plan: Ran the script under differnet environments.

Reviewers: igor

Reviewed By: igor

CC: leveldb

Differential Revision: https://reviews.facebook.net/D15231
2014-01-16 14:26:51 -08:00
build_tools Fix some "make format" issue 2014-01-16 14:26:51 -08:00
coverage Fix the gcov/lcov related issues 2013-08-22 17:01:06 -07:00
db Remove compaction pointers 2014-01-16 14:06:53 -08:00
doc Fix typo. 2013-11-28 03:57:16 +09:00
hdfs Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
helpers/memenv Change Function names from Compaction->Flush When they really mean Flush 2013-10-14 15:12:15 -07:00
include Remove the unnecessary use of shared_ptr 2014-01-15 18:22:01 -08:00
linters/src fixing linters. 2012-12-14 14:05:27 -08:00
port Print stack trace on assertion failure 2013-12-06 17:11:09 -08:00
table Fix memtable construction in tests 2014-01-14 15:36:12 -08:00
tools Killing Transform Rep 2013-12-03 12:42:15 -08:00
util Remove the unnecessary use of shared_ptr 2014-01-15 18:22:01 -08:00
utilities Fix share_table_files condition in BackupEngine constructor. 2014-01-11 05:12:07 +09:00
.arcconfig Enable linting in arc. 2013-02-01 11:34:25 -08:00
.clang-format A script that automatically reformat affected lines 2014-01-14 12:21:24 -08:00
.gitignore Refactor build_tools/build_detect_version 2014-01-06 08:44:43 +02:00
CONTRIBUTING.md Reformat CONTRIBUTING.md with less than 80 characters. 2013-11-16 22:51:09 -08:00
INSTALL.md docs for shared library builds 2013-12-30 21:34:45 +08:00
LICENSE Add appropriate LICENSE and Copyright message. 2013-10-16 17:48:41 -07:00
Makefile Move the compilation of the shared libraries to "make release" 2014-01-14 13:54:33 -08:00
PATENTS Fix the patent format 2013-10-16 15:37:32 -07:00
README Add a pointer to the engineering design discussion forum. 2013-12-23 12:19:18 -08:00
README.fb update the latest version in README.fb to 2.7 2013-12-30 16:16:24 -08:00

rocksdb: A persistent key-value store for flash storage
Authors: * The Facebook Database Engineering Team
         * Build 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 an 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.

The core of this code has been derived from open-source leveldb.

The code under this directory implements a system for maintaining a
persistent key/value store.

See doc/index.html and github wiki (https://github.com/facebook/rocksdb/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.

Guide to header files:

include/rocksdb/db.h
    Main interface to the DB: Start here

include/rocksdb/options.h
    Control over the behavior of an entire database, and also
    control over the behavior of individual reads and writes.

include/rocksdb/comparator.h
    Abstraction for user-specified comparison function.  If you want
    just bytewise comparison of keys, you can use the default comparator,
    but clients can write their own comparator implementations if they
    want custom ordering (e.g. to handle different character
    encodings, etc.)

include/rocksdb/iterator.h
    Interface for iterating over data. You can get an iterator
    from a DB object.

include/rocksdb/write_batch.h
    Interface for atomically applying multiple updates to a database.

include/rocksdb/slice.h
    A simple module for maintaining a pointer and a length into some
    other byte array.

include/rocksdb/status.h
    Status is returned from many of the public interfaces and is used
    to report success and various kinds of errors.

include/rocksdb/env.h
    Abstraction of the OS environment.  A posix implementation of
    this interface is in util/env_posix.cc

include/rocksdb/table_builder.h
    Lower-level modules that most clients probably won't use directly

include/rocksdb/cache.h
    An API for the block cache.

include/rocksdb/compaction_filter.h
    An API for a application filter invoked on every compaction.

include/rocksdb/filter_policy.h
    An API for configuring a bloom filter.

include/rocksdb/memtablerep.h
    An API for implementing a memtable.

include/rocksdb/statistics.h
    An API to retrieve various database statistics.

include/rocksdb/transaction_log.h
    An API to retrieve transaction logs from a database.

Design discussions are conducted in https://www.facebook.com/groups/rocksdb.dev/