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From "Andreas Veithen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AXIS2-5310) Axis2.0 : 1.6.2 : Memory Leak Issue
Date Tue, 01 May 2012 08:39:45 GMT

    [ https://issues.apache.org/jira/browse/AXIS2-5310?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13265708#comment-13265708
] 

Andreas Veithen commented on AXIS2-5310:
----------------------------------------

Do you have any evidence that the class loader is indeed not garbage collected and that it's
Axis2's fault (and not your service's)? Note that the messages generated by Tomcat are not
evidence because they are not reliable as explained above.
                
> Axis2.0 : 1.6.2 : Memory Leak Issue 
> ------------------------------------
>
>                 Key: AXIS2-5310
>                 URL: https://issues.apache.org/jira/browse/AXIS2-5310
>             Project: Axis2
>          Issue Type: Bug
>          Components: databinding, transports
>    Affects Versions: 1.6.2
>         Environment: Axis2.0 version used : 1.6.2
> NSJSP7.0 and ITP webserver 7.2 for HP Nonstop Tandem
>            Reporter: Santhosh
>              Labels: Memory, leak, performance
>   Original Estimate: 972h
>  Remaining Estimate: 972h
>
> I'm facing below error message after deploying a webservice using Axis2.0 in webserver.
> Mon, Apr 30, 16:08:27;$Z0QF;INFO;StandardService#stopInternal;Stopping service NSJSP
> Mon, Apr 30, 16:08:29;$Z0QF;SEVERE;WebappClassLoader#clearReferencesThreads;The web application
[/PSAPI-V1-0/axis2] is still processing a request that has yet to finish. This is very likely
to create a memory leak. You can control the time allowed for requests to finish by using
the unloadDelay attribute of the standard Context implementation.
> Mon, Apr 30, 16:08:29;$Z0QF;SEVERE;WebappClassLoader#checkThreadLocalMapForLeaks;The
web application [/PSAPI-V1-0/axis2] created a ThreadLocal with key of type [java.lang.ThreadLocal]
(value [java.lang.ThreadLocal@2465e5]) and a value of type [org.apache.axis2.context.MessageContext]
(value [[MessageContext: logID=3fecb85757bee1e6fd9cdc8eb6a0e146d5c1eaa7dd28d0e7]]) but failed
to remove it when the web application was stopped. Threads are going to be renewed over time
to try and avoid a probable memory leak.
> Mon, Apr 30, 16:08:29;$Z0QF;SEVERE;WebappClassLoader#checkThreadLocalMapForLeaks;The
web application [/PSAPI-V1-0/axis2] created a ThreadLocal with key of type [org.apache.axiom.util.UIDGenerator$1]
(value [org.apache.axiom.util.UIDGenerator$1@b103dd]) and a value of type [long[]] (value
[[J@174d4c9]) but failed to remove it when the web application was stopped. Threads are going
to be renewed over time to try and avoid a probable memory leak.
> Mon, Apr 30, 16:08:29;$Z0QF;INFO;AbstractProtocolHandler#stop;Stopping ProtocolHandler
["http-bio-0"]
> As per error logs i understand that "Axis2.0 - framework" is not able to delete/failed
to cleanup a thread. Please provide me with resolution if any.

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