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https://issues.apache.org/jira/browse/TUSCANY-3149?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Simon Laws reassigned TUSCANY-3149:
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Assignee: Simon Laws
> Restarting webapp leads to OutOfMemory: Permgen space
> -----------------------------------------------------
>
> Key: TUSCANY-3149
> URL: https://issues.apache.org/jira/browse/TUSCANY-3149
> Project: Tuscany
> Issue Type: Bug
> Components: Java SCA Core Runtime
> Affects Versions: Java-SCA-1.4
> Environment: Tomcat on Windows/Unix
> Reporter: Nithya V
> Assignee: Simon Laws
> Priority: Blocker
>
> --- On Wed, 7/15/09, Simon Laws <[email protected]> wrote:
> From: Simon Laws <[email protected]>
> Subject: Re: Restarting webapp leads to OutOfMemory: Permgen space
> To: [email protected], [email protected]
> Date: Wednesday, July 15, 2009, 3:26 AM
> Hi Nithya
> I just tried and see the same effect. It doesn't take long the get the
> perm gen error and seems to be holding onto the whole runtime
> structure between stop/start. I'll take a look to see if I can see
> what's going on. In the mean time can you raise a JIRA [1] to track
> the problem.
> Thanks
> Simon
> [1] http://issues.apache.org/jira/browse/TUSCANY
> --- On Tue, 7/14/09, [email protected] <[email protected]> wrote:
> From: [email protected] <[email protected]>
> Subject: Restarting webapp leads to OutOfMemory: Permgen space
> To: [email protected]
> Date: Tuesday, July 14, 2009, 11:07 PM
> Hi all,
> We have developed a web application using Tuscany 1.4 which is deployed in
> Tomcat. We have a need to restart the webapp on demand without stopping
> tomcat. Tomcat goes out of perm gen space and crashes after a few restarts.
> Looking through the memory dumps shows the roots to tuscany core MessageImpl
> class.
> To narrow down the issue, I used the calculator-ws-webapp sample that came
> with Tuscany. After deploying the war in tomcat, I used tomcat manager to
> restart the webapp a few times. I can see that the "Perm Gen memory" keeps
> increasing in Jconsole. This happens even with Java options set to
> -XX:+UseConcMarkSweepGC -XX:+CMSPermGenSweepingEnabled
> -XX:+CMSClassUnloadingEnabled.
> However if all entries from the composite file are commented out, the perm
> gen memory is reclaimed when the webapp is stopped. Makes me think that when
> composite entries are present, Tuscany is holding on to the classes somehow
> preventing it from getting unloaded or garbage collected during webapp
> restart. Is that possible? Does Tuscany create its own classloader? Is there
> a call to release the classes loaded by Tuscany when the webapp is stopped?
> hope someone can provide us pointers to fix this. This is currently blocking
> us from our release :-(
> Thanks,
> N.V
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