see http://stackoverflow.com/questions/88235/how-to-deal-with-java-lang-outofmemoryerror-permgen-space-error
and the links there. There seems to be no good solution :-/ The only reliable solution is restart, before you haven't enough permgenspace (use jvisualvm to monitor) And try to increase -XX:MaxPermSize to make the restart interval longer or using jrebel or sth. like that should probably help too. Regards, Peter. > the second time we had the error > > java.lang.OutOfMemoryError: PermGen space > > and solr stopped responding. > > we use the default jetty installation with jdk1.6.0_21. after the last > time i tried to set the garbage collector "right" > these are my settings: > > -D64 -server -Xms892m -Xmx2048m -XX:+UseConcMarkSweepGC > -XX:+UseParNewGC -XX:-HeapDumpOnOutOfMemoryError > -XX:+CMSClassUnloadingEnabled -XX:+CMSPermGenSweepingEnabled > > as far as i thought, "-XX:+CMSClassUnloadingEnabled > -XX:+CMSPermGenSweepingEnabled" should also cleanup the PermGen space. > > what can we do? > > ok, at the moment solr is not stopped and is running "all time". maybe > we should do a regular (daily) restart, then the problem should be > fixed. but how can we adjust the garbage settings, so that the PermGen > space is not running out of space... > > > markus > > -- http://jetwick.com twitter search prototype
