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https://jira.duraspace.org/browse/DS-1527?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=27886#comment-27886
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Robin Taylor commented on DS-1527:
----------------------------------
Added pull request https://github.com/DSpace/DSpace/pull/206
> Memory leak in CachingService
> -----------------------------
>
> Key: DS-1527
> URL: https://jira.duraspace.org/browse/DS-1527
> Project: DSpace
> Issue Type: Bug
> Components: Service Manager
> Affects Versions: 1.8.0, 1.8.1, 1.8.2, 3.0, 3.1
> Reporter: Robin Taylor
> Priority: Major
> Fix For: 4.0
>
> Attachments: memory-year.png
>
>
> CachingServiceImpl contains a memory leak, or to be more precise the nested
> class CachingServiceRequestInterceptor does. If you want to confirm this then
> use a profiler and watch map 'requestCachesMap' grow, or use the 'old school'
> method and stick some debugging code in the
> onStart() method. The onStart() method and its partner onEnd() are invoked
> indirectly by DSpaceWebappServletFilter, however, it appears onEnd() does not
> get invoked for requests of type FORWARD or INCLUDE. This results in lots of
> undeleted entries in requestCachesMap.
> Ideally it would be good to understand why onEnd() does not get invoked for
> all request types. However, if nobody can come up with an explanation then
> the easy fix for this is to delete the references to FORWARD and INCLUDE in
> the filter mapping definition in web.xml. If nobody can think of a reason not
> to do so I'll provide a pull request to that effect.
> Cheers, Robin.
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