Hi, We're on Java 1.5 and do not get any OutOfMemory but after some point, Tomcat uses 50% of the server memory and stops serving requests.
--- Per Johnsson <[EMAIL PROTECTED]> wrote: > Hi! > > If you get OutOfMemory Errors and running java 1.6 > (maybe later versions > of java 1.5) you can make the vm to save a memory > dump which you could > load in ie. YourKit java profiler. And After a crach > you could analyse > the memroy in your applications. > > I did that resently and it works like a charm. > > This is the parameters I used: > -verbose:gc > -XX:HeapDumpPath=C:\Java\heapdump > -XX:+HeapDumpOnOutOfMemoryError > -XX:+PrintGCDetails > > You could also look in the gc_log, sometimes you > could see what's > released and what needs correcting when jvm is doing > a full gc. > > Hope it helps. > > (If you don't run java6 I can recommend it, faster > and better :-) > > /Regards Per Jonsson > > -----Original Message----- > From: Jerome Benezech [mailto:[EMAIL PROTECTED] > Sent: den 14 maj 2007 11:21 > To: users@tomcat.apache.org > Subject: Tomcat Memory Usage > > Hi all, > > I run a cocoon webapp which is hosted on a shared > Linux environnement > and runs under tomcat 5.5.9. > There are about 7 applications running under that > tomcat instance (2 > cocoon, at least 1 jsp, don't know for the others). > My host provider complains that he tomcat uses a lot > of memory and that > he needs to restart it every 4 hours to release the > memory. > Tomcat runs as a daemon (started using jsvc) and > with the following > parameters: > > jsvc.exec -user tomcat -cp ./bootstrap.jar > -Djava.endorsed.dirs=../common/endorsed > -java.awt.headless=true -Xmx500000000 > -XX:MaxPermSize=300m -debug -outfile > ../logs/catalina.out -errfile ../logs/catalina.err > -verbose > org.apache.catalina.startup.Bootstrap > -security > > I'm really not sure where to start looking: memory > leak due to bad > programming in the webapp or bad tomcat > configuration leading to memory > leaks. > I also noticed there are quiet a few links in google > pointing to > problems with Tomcat not releasing memory (objets > not getting > garbage-collected), although they are mostly related > to Tomcat 4.x. What > is the situation on with Tomcat 5.5.9 ? > > I'm looking for help on what to look for, what > configuration parameters > should be used in production environnement, how can > I pinpoint this > memory problem ? > > Cheers, > Jerome > > > > > Jerome Benezech > [EMAIL PROTECTED] > > --------------------------------------------------------------------- > To start a new topic, e-mail: > users@tomcat.apache.org To unsubscribe, > e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: > [EMAIL PROTECTED] > > > ******************************************************************************** > This e-mail and the information it contains may be > privileged and/or > confidential. It is for the intended addressee(s) > only. > The unauthorised use, disclosure or copying of this > e-mail, or any information it contains, is > prohibited. > If you are not an intended recipient, please contact > the sender and delete the material from your > computer. > ******************************************************************************** > > > > --------------------------------------------------------------------- > To start a new topic, e-mail: > users@tomcat.apache.org > To unsubscribe, e-mail: > [EMAIL PROTECTED] > For additional commands, e-mail: > [EMAIL PROTECTED] > > Jerome Benezech [EMAIL PROTECTED] --------------------------------------------------------------------- To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
