Thanks, Mattias, that's cool! -- Rick
On Apr 24, 2012, at 22:17 , Mattias Jiderhamn wrote: > Hi Rick. > > After having had these issues for years, I started blogging about it and how > to find classloader leaks [1]. I also compiled a list of API calls and third > party libraries known to trigger these leaks [2], and as you can see, it is > quite common both to cause these problems yourself and to have them caused by > some dependency. > > Having done the research, I ended up creating a small library that you can > add to you web application, that will clean up strong references keeping > your classloader from being garbage collected [3]. Somewhat like Tomcat has > built in, but taking care of more of the known problems. I suggest you add > this library to you app and watch the logs (feel free to report your > findings). > > Having said that, I should admit that I'm still seeing PermGen crashes > running under Resin, even when there are no visible strong references to > my classloader. I have not had time to investigate whether this is caused by > Resin (such as the HotSwap capability), or if it is some JVM bug (and > possibly something with IntelliJ, as the problem increases using the IntelliJ > Resin plugin). I should probably try turning HotSwap off, or try another > application server - or another JVM. Someday... > > Good luck! > > </Mattias> > > 1: > http://java.jiderhamn.se/2011/12/11/classloader-leaks-i-how-to-find-classloader-leaks-with-eclipse-memory-analyser-mat/ > 2: > http://java.jiderhamn.se/2012/02/26/classloader-leaks-v-common-mistakes-and-known-offenders/ > 3: > http://java.jiderhamn.se/2012/03/04/classloader-leaks-vi-this-means-war-leak-prevention-library/ > > > ----- Original Message ----- > Subject: [Resin-interest] Out of PermGen space > Date: Tue, 24 Apr 2012 13:54:40 -0700 > From: Rick Mann <rm...@latencyzero.com> > > When I'm making changes to the code of a webapp, Resin kindly reloads it for > me. I can usually get a handful of reloads in before Resin complains > about being out of PermGen space. > > Is there something I'm doing wrong in my app that it leaks like this? > > -- > Rick > > > _______________________________________________ > resin-interest mailing list > resin-interest@caucho.com > http://maillist.caucho.com/mailman/listinfo/resin-interest > > > -- > > </Mattias> > > _______________________________________________ > resin-interest mailing list > resin-interest@caucho.com > http://maillist.caucho.com/mailman/listinfo/resin-interest _______________________________________________ resin-interest mailing list resin-interest@caucho.com http://maillist.caucho.com/mailman/listinfo/resin-interest
