hi: thanks for the references. I 'll read that. by the way, *hanging onto a reference to an object from your webapp classes, preventing the old webapp deployment from being garbage collected. *
what kind of object do you mean by saying this? classes relevant to the class loader? or something else? for example? thanks 2010/11/23 Caldarale, Charles R <chuck.caldar...@unisys.com> > > From: xu cheng [mailto:xcheng....@gmail.com] > > Subject: Re: OutOfMemoryError some time on some tomcat!!!!1 > > > I just kept redeploying apps , and the perm gen keep > > growing each time I deploy the same app. and when I > > undeploy the app, the perm gen didn't clean the garbage > > Exactly the situation I suggested the other day: you have something that's > hanging onto a reference to an object from your webapp classes, preventing > the old webapp deployment from being garbage collected. Again, read this: > > http://wiki.apache.org/tomcat/FAQ/Memory > > Also, take a look at these: > > http://blogs.sun.com/fkieviet/entry/classloader_leaks_the_dreaded_java > http://blogs.sun.com/fkieviet/entry/how_to_fix_the_dreaded > > - Chuck > > > THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY > MATERIAL and is thus for use only by the intended recipient. If you received > this in error, please contact the sender and delete the e-mail and its > attachments from all computers. > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > >
