rocksdb

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

Igor Canadi a0e9ee5965 Add rapidjson to RocksDB Summary: This diff adds rapidjson (https://code.google.com/p/rapidjson/) to RocksDB repository. First step to adding JSON is to add a JSON parser :) I'm not sure if rapidjson is the right choice. I only considered folly as an alternative. Using folly JSON parser has serious downsides. I tried extracting folly::json from the folly library. However, it depends on folly::dynamic, which basically depends on everything else. I would prefer to avoid adding complete folly library as RocksDB dependency. Folly has a lot of its own dependencies (https://github.com/facebook/folly) and also looks like open source world has some trouble installing it (https://groups.google.com/forum/#!forum/facebook-folly -- 60% of the posts are compile errors). We can discuss this if you think otherwise. RapidJSON does not have any dependencies whatsoever. No boost, no STL. We don't need to compile it since it's all header files. The performance results are also impressive: https://code.google.com/p/rapidjson/wiki/Performance. However, I'll make sure to write code in a way that we can easily switch JSON implementations going forward. Quora thread has some alternatives: http://www.quora.com/What-is-the-best-C-JSON-library Test Plan: none Reviewers: dhruba, haobo, yhchiang, sdong, jamesgpearce Reviewed By: haobo CC: leveldb Differential Revision: https://reviews.facebook.net/D18729		11 years ago
build_tools	Fix building RocksDB in paths containing spaces -- quote path names in Makefile and build_detect_platform.	11 years ago
coverage	Disable the html-based coverage report by default	11 years ago
db	Remove maximum key_size check in db_bench	11 years ago
doc	doc: table_stats_collectors -> table_properties_collectors.	11 years ago
examples	Make it easier to start using RocksDB	11 years ago
hdfs	Improve EnvHdfs	11 years ago
helpers/memenv	Expose in memory Env to the world	11 years ago
include	Expose Status::code()	11 years ago
java	Merge branch 'master' of github.com:facebook/rocksdb into show-reads	11 years ago
linters	allow lambda function syntax in cpplint	11 years ago
port	Make rocksdb work with all versions of lz4	11 years ago
table	Materialize the hash index	11 years ago
third-party/rapidjson	Add rapidjson to RocksDB	11 years ago
tools	Fix errors while building with clang	11 years ago
util	Fix errors while building with clang	11 years ago
utilities	BackupableDBTest thread-safe	11 years ago
.arcconfig	Improve/fix bugs for the cpp linter	11 years ago
.clang-format	A script that automatically reformat affected lines	11 years ago
.gitignore	Add TARGETS to gitignore	11 years ago
.travis.yml	Turn off travis notifications	11 years ago
CONTRIBUTING.md	New CLA form	11 years ago
HISTORY.md	Materialize the hash index	11 years ago
INSTALL.md	Better INSTALL.md and Makefile rules	11 years ago
LICENSE	Fix copyright year	11 years ago
Makefile	Fix building RocksDB in paths containing spaces -- quote path names in Makefile and build_detect_platform.	11 years ago
PATENTS	Fix the patent format	11 years ago
README.md	Add build status to README.md	11 years ago
ROCKSDB_LITE.md	RocksDBLite	11 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 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.

Start with example usage here: https://github.com/facebook/rocksdb/tree/master/examples

See doc/index.html and 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/