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From Rob Ross <robr...@earthlink.net>
Subject Re: JVM's perm size always increase after hot deploy to tomcat 5.0.28
Date Thu, 07 Apr 2005 20:53:16 GMT
Yes, this is a well known problem with redeploying wars in Tomcat. We 
have to shutdown and restart the Tomcat server periodically after 
redeploying a number of times.

It's a memory leak.

On Apr 7, 2005, at 1:48 PM, Paulo Alvim wrote:

> Hi,
>
> We had a "war" file with about 30MB using JSP pre-compilation and hot 
> deploy
> as suggested in the Tomcat web-site. But after using the hot deploy a 
> few
> times we received "out of memory" messages - in the JVM permanent area
> (perm).
>
> After migrating to 1.5.0_02 - to get better JVM information - we could 
> see
> that the used perm size always increase until this max size, in "every
> Tomcat app reloading" (even with exploded files and Ant 'touches'). We
> always lost 7 to 15MB of the perm area in every reload process - and 
> this
> area is never collected...
>
> Anyone could help us with more information here (maybe about TC class
> loaders or perm area)?
>
> Is there anyone with the same problem?
>
> Thanks in advance!
>
> Paulo Alvim
> Powerlogic
> Brazil
>
>
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>
Rob Ross, Senior Software Engineer
E! Networks
rross@eentertainment.com
---------------------------------------------------
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