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DBMS > etcd vs. Riak KV vs. RocksDB

System Properties Comparison etcd vs. Riak KV vs. RocksDB

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Editorial information provided by DB-Engines
Nameetcd  Xexclude from comparisonRiak KV  Xexclude from comparisonRocksDB  Xexclude from comparison
DescriptionA distributed reliable key-value storeDistributed, fault tolerant key-value storeEmbeddable persistent key-value store optimized for fast storage (flash and RAM)
Primary database modelKey-value storeKey-value store infowith links between data sets and object tags for the creation of secondary indexesKey-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score6.99
Rank#53  Overall
#5  Key-value stores
Score3.95
Rank#73  Overall
#9  Key-value stores
Score2.89
Rank#97  Overall
#16  Key-value stores
Websiteetcd.io
github.com/­etcd-io/­etcd
rocksdb.org
Technical documentationetcd.io/­docs
github.com/­etcd-io/­etcd/­tree/­master/­Documentation
www.tiot.jp/­riak-docs/­riak/­kv/­latestgithub.com/­facebook/­rocksdb/­wiki
DeveloperOpenSource, formerly Basho TechnologiesFacebook, Inc.
Initial release20092013
Current release3.4, August 20193.2.0, December 20229.4.0, June 2024
License infoCommercial or Open SourceOpen Source infoApache Version 2.0Open Source infoApache version 2, commercial enterprise editionOpen Source infoBSD
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageGoErlangC++
Server operating systemsFreeBSD
Linux
Windows infoexperimental
Linux
OS X
Linux
Data schemeschema-freeschema-freeschema-free
Typing infopredefined data types such as float or datenonono
XML support infoSome form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.nonono
Secondary indexesnorestrictedno
SQL infoSupport of SQLnonono
APIs and other access methodsgRPC
JSON over HTTP
HTTP API
Native Erlang Interface
C++ API
Java API
Supported programming languages.Net
C
C++
Clojure
Erlang
Go
Haskell
Java
JavaScript (Node.js)
Perl
PHP
Python
R
Ruby
Rust
Scala
Tcl
C infounofficial client library
C#
C++ infounofficial client library
Clojure infounofficial client library
Dart infounofficial client library
Erlang
Go infounofficial client library
Groovy infounofficial client library
Haskell infounofficial client library
Java
JavaScript infounofficial client library
Lisp infounofficial client library
Perl infounofficial client library
PHP
Python
Ruby
Scala infounofficial client library
Smalltalk infounofficial client library
C
C++
Go
Java
Perl
Python
Ruby
Server-side scripts infoStored proceduresnoErlangno
Triggersyes, watching key changesyes infopre-commit hooks and post-commit hooks
Partitioning methods infoMethods for storing different data on different nodesSharding infono "single point of failure"horizontal partitioning
Replication methods infoMethods for redundantly storing data on multiple nodesUsing Raft consensus algorithm to ensure data replication with strong consistency among multiple replicas.selectable replication factoryes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual Consistency
Foreign keys infoReferential integritynono infolinks between data sets can be storedno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonoyes
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyes
User concepts infoAccess controlnoyes, using Riak Securityno

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3rd partiesSpeedb: A high performance RocksDB-compliant key-value store optimized for write-intensive workloads.
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More resources
etcdRiak KVRocksDB
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