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Date: Tue, 7 Nov 2006 08:42:53 -0800 (PST)
From: "Jukka Zitting (JIRA)" <jira@apache.org>
To: dev@jackrabbit.apache.org
Subject: [jira] Updated: (JCR-625) Memory is not freed up when
 jackrabbit-server war is redeployed in tomcat
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     [ http://issues.apache.org/jira/browse/JCR-625?page=all ]

Jukka Zitting updated JCR-625:
------------------------------

    Component/s: core

> Memory is not freed up when jackrabbit-server war is redeployed in tomcat
> -------------------------------------------------------------------------
>
>                 Key: JCR-625
>                 URL: http://issues.apache.org/jira/browse/JCR-625
>             Project: Jackrabbit
>          Issue Type: Bug
>          Components: core
>         Environment: No released version is affected, only trunk: svn revision 471800.
>            Reporter: Marcel Reutegger
>            Priority: Minor
>         Attachments: cacheManager3.txt
>
>
> This bug was introduced with the new CacheManager feature. See JCR-619.
> The CacheManager starts a new background thread which optimizes memory distribution every second accross the various caches. When a jackrabbit repository is shutdown, this background thread is still running and prevents the GC from collecting the classloader when jackrabbit is deployed in a web application.
> Steps to reproduce:
> 1) build jackrabbit and jcr-server from trunk and deploy into a tomcat
> 2) touch the web.xml file of the jcr-server web app (this will force a redeployment)
> After step 2 two things may happen. Either:
> - The memory consumption increases because the CacheManager thread is not shutdown
> or
> - The CacheManager thread dies unexpectedly with a NullPointerException:
> Exception in thread "org.apache.jackrabbit.core.state.CacheManager" java.lang.NullPointerException
>         at org.apache.jackrabbit.core.state.CacheManager.run(CacheManager.java:90)
>         at java.lang.Thread.run(Unknown Source)

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