DBMS > Ehcache vs. Memcached vs. Riak KV

System Properties Comparison Ehcache vs. Memcached vs. Riak KV

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Editorial information provided by DB-Engines
Name	Ehcache  Xexclude from comparison	Memcached  Xexclude from comparison	Riak KV  Xexclude from comparison
Description	A widely adopted Java cache with tiered storage options	In-memory key-value store, originally intended for caching	Distributed, fault tolerant key-value store
Primary database model	Key-value store	Key-value store	Key-value store with links between data sets and object tags for the creation of secondary indexes
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 6.54 Rank #64   Overall #8   Key-value stores	Score 24.56 Rank #33   Overall #4   Key-value stores	Score 6.52 Rank #65   Overall #9   Key-value stores
Website	www.ehcache.org	www.memcached.org	riak.com/­products/­riak-kv
Technical documentation	www.ehcache.org/­documentation	github.com/­memcached/­memcached/­wiki
Developer	Terracotta Inc, owned by Software AG	Danga Interactive originally developed by Brad Fitzpatrick for LiveJournal	Basho Technologies
Initial release	2009	2003	2009
Current release	3.9.6, September 2021	1.6.15, March 2022	2.1.0, April 2015
License Commercial or Open Source	Open Source Apache Version 2; commercial licenses available	Open Source BSD license	Open Source Apache version 2, commercial enterprise edition
Cloud-based only Only available as a cloud service	no	no	no
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Implementation language	Java	C	Erlang
Server operating systems	All OS with a Java VM	FreeBSD Linux OS X Unix Windows	Linux OS X
Data scheme	schema-free	schema-free	schema-free
Typing predefined data types such as float or date	yes	no	no
XML support Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.	no		no
Secondary indexes	no	no	restricted
SQL Support of SQL	no	no	no
APIs and other access methods	JCache	Proprietary protocol	HTTP API Native Erlang Interface
Supported programming languages	Java	.Net C C++ ColdFusion Erlang Java Lisp Lua OCaml Perl PHP Python Ruby	C unofficial client library C# C++ unofficial client library Clojure unofficial client library Dart unofficial client library Erlang Go unofficial client library Groovy unofficial client library Haskell unofficial client library Java JavaScript unofficial client library Lisp unofficial client library Perl unofficial client library PHP Python Ruby Scala unofficial client library Smalltalk unofficial client library
Server-side scripts Stored procedures	no	no	JavaScript and Erlang
Triggers	yes Cache Event Listeners	no	yes pre-commit hooks and post-commit hooks
Partitioning methods Methods for storing different data on different nodes	Sharding by using Terracotta Server	none	Sharding no "single point of failure"
Replication methods Methods for redundantly storing data on multiple nodes	yes by using Terracotta Server	none Repcached, a Memcached patch, provides this functionallity	selectable replication factor
MapReduce Offers an API for user-defined Map/Reduce methods	no	no	yes
Consistency concepts Methods to ensure consistency in a distributed system	Tunable Consistency (Strong, Eventual, Weak)		Eventual Consistency
Foreign keys Referential integrity	no	no	no links between data sets can be stored
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	yes supports JTA and can work as an XA resource	no	no
Concurrency Support for concurrent manipulation of data	yes	yes	yes
Durability Support for making data persistent	yes using a tiered cache-storage approach	no	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.	yes
User concepts Access control	no	yes using SASL (Simple Authentication and Security Layer) protocol	no
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