Marco At risk of a red herring ...
I had what sounds a very similar problem with tomcat 4.1.12 and cocoon 2.0.3 and sun jdk1.3 on w2k The behaviour of OK for 24hrs then 100%cpu - with no apparent application errors is identical to what I saw I looked on tomcat mailing lists and found someone else had similar problem which stopped when they went to jdk1.4.1 I did same and problem went away ! Can't speak for jdk1.4.0 since by the time I moved off jdk1.3, jdk1.4.1 was out... But 100%CPU and no application error messages does 'seem' the kind of thing that might happen with bad garbage collection due to a rogue JVM. So if it doesn't create additional hassle perhaps jdk1.4.1 is worth a try ? Christopher Watson > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > Sent: 20 March 2003 19:26 > To: [EMAIL PROTECTED] > Subject: AW: [HELP] determining possible leak > > > JDK version is: > > java version "1.4.0_02" > Java(TM) 2 Runtime Environment, Standard Edition (build > 1.4.0_02-b02) Java HotSpot(TM) Client VM (build 1.4.0_02-b02, > mixed mode) > > but as already mentioned I think the problem didn't exist in > the beginning on the live machine (but maybe it didn't have > the time to come up, since in the beginning I set -Xmx256m). > > but even if it's that StringBuffer issue, wouldn't that show > up in the janitor's memory reports? > > tnx > > > -----Ursprungliche Nachricht----- > > Von: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] > > Auftrag von Gianugo Rabellino > > Gesendet: Donnerstag, 20. Marz 2003 19:26 > > An: [EMAIL PROTECTED] > > Betreff: Re: [HELP] determining possible leak > > > > > > Marco Rolappe wrote: > > > hi group, > > > > > > there's a problem I currently have with a webapp, that makes me > > go crazy. > > > > > > the webapp has been live for about two months now, and I think > > the problem > > > didn't exist in the beginning. > > > > Using JDK 1.4.1? If so, look for the "profiling Cocoon" recent > > threads: there is a bug in StringBuffer that leads to a memory leak. > > > > Ciao, > > > > -- > > Gianugo Rabellino > > Pro-netics s.r.l. > > http://www.pro-netics.com > > > >
