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From Christopher Schultz <ch...@christopherschultz.net>
Subject Re: Web Service Client Response when Old Gen is 100%
Date Wed, 06 Nov 2013 15:25:02 GMT
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Muhammad,

On 11/6/13, 1:43 AM, Muhammad Ali Orakzai wrote:
> -XX:MaxPermSize=100m

You don't have any other heap-sizing parameters. Perhaps you simply
need more memory? It used to be that the default heap sizes were very
small (sometimes like 64MiB) and you may simply need much more. How
much memory is the JVM actually running with given your existing
command-line? You can check with "jinfo" from the command-line.

> -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled 
> -XX:+HeapDumpOnOutOfMemoryError

Have you inspected one of these? You should get one for each OOM. You
should be able to find out what kinds of objects are filling-up your
heap. It should give you some clue as to what kind of action you
should take next: either raise your heap size or fix your web application.

> -Dcom.sun.management.jmxremote 
> -Dcom.sun.management.jmxremote.port=9004 
> -Dcom.sun.management.jmxremote.ssl=false 
> -Dcom.sun.management.jmxremote.authenticate=false

Um... the above doesn't look like a good idea, but only you know your
own environment.

- -chris
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