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From "Tim Lucia" <timlu...@yahoo.com>
Subject RE: Urgent: PermGen memory leak in a NetBeans developed tomcat application
Date Wed, 16 May 2007 15:56:39 GMT

> -----Original Message-----
> From: Caldarale, Charles R [mailto:Chuck.Caldarale@unisys.com]
> Sent: Wednesday, May 16, 2007 11:34 AM
> To: Tomcat Users List
> Subject: RE: Urgent: PermGen memory leak in a NetBeans developed tomcat
> application
> 
> > From: Paulo Alvim [mailto:alvim@powerlogic.com.br]
> > Subject: RES: Urgent: PermGen memory leak in a NetBeans
> > developed tomcat application
> >
> > We've this classic problem (using Tomcat 5.x) with PermGen
> > but in our case the leak occurs after a hot redeploy of any
> > application.
> 
> There are a couple of common causes for this, plus numerous more unusual
> ones.  The two common ones are a shared library class keeping a
> reference to a webapp class or object, and injudicious use of
> ThreadLocal.  More discussion here:
> http://opensource.atlassian.com/confluence/spring/pages/viewpage.action?
> pageId=2669

There is also this

http://mail-archives.apache.org/mod_mbox/tomcat-users/200602.mbox/%3C00ad01c
6323f$9cc480d0$3a0119ac@tim%3E


as a possible aggravating factor.

Tim


> 
>  - Chuck
> 
> 
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