Ehcache

{{short description|Java software}}

{{refimprove|date=November 2015}}

{{Infobox Software

| name = Ehcache

| logo =

| screenshot =

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| developer = Terracotta, Inc.{{cite web|url=http://ehcache.org/documentation/overview.html |title=Ehcache Overview |access-date=February 13, 2013 |url-status=dead |archive-url=https://web.archive.org/web/20110726020720/http://ehcache.org/documentation/overview.html |archive-date=July 26, 2011 }}

| latest release version = 3.10.0

| latest release date = 10 March 2022{{cite web|url=https://www.ehcache.org/downloads/ |title=Download Ehcache |access-date=August 1, 2022}}

| latest preview version =

| latest preview date =

| operating system = Cross-platform

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| programming language = Java

| genre = Cache

| license = Apache License 2.0

| website = {{URL|www.ehcache.org}}

}}

Ehcache ({{IPAc-en|ˈ|iː|eɪ|tʃ|k|æ|ʃ}} {{Respell|EE|aytch|kash}}{{cite web|url=https://www.youtube.com/watch?v=TszcAWgCXD0|title=The Essence of Caching - Ehcache|work=YouTube|date=February 26, 2011|accessdate=17 November 2021}}) is an open source Java distributed cache for general-purpose caching, Java EE and {{clarify-span|light-weight containers|date=September 2013}}.{{cite web|url=http://www.ehcache.org/about/features.html|title=Features|access-date=April 5, 2011}} Ehcache is available under an Apache open source license.

Ehcache was developed by Greg Luck starting in 2003. In 2009, the project was purchased by Terracotta, which provides paid support. The software is still open-source, but some new major functionalities (Fast Restartability Consistency) are available only in commercial products, like Enterprise Ehcache and BigMemory, which are not open source. In March 2011, the Wikimedia Foundation announced it would use Ehcache to improve the performance of its wiki projects.{{cite web |url=http://techblog.wikimedia.org/2011/04/wikimedia-engineering-march-2011-report/#Performance_optimization |title=Wikimedia engineering March 2011 report#Performance optimization |author=Mark Bergsma |author2=Tomasz Finc |author3=Alolita Sharma |author4=CT Woo |author5=Rob Lanphier |author6=Guillaume Paumier |date=2 April 2011 |access-date=5 April 2011 |archive-date=16 April 2011 |archive-url=https://web.archive.org/web/20110416005825/http://techblog.wikimedia.org/2011/04/wikimedia-engineering-march-2011-report/#Performance_optimization |url-status=dead }} However this was quickly abandoned after testing revealed problems with the approach.

The name Ehcache is a palindrome.