----- Original Message ----- > Hi, > > we have the problem that tomact is slowing down after a while > until even the manager app becomes unusable. > > Our System: > 2 Quadcores/24 GB Mem > OpenSuse 11.4 > tomcat 6.0.29 > wicket/hibernate/postgres > > Max Memory and total Memory 2GB > Free Momory 500 MB when the system is slow > top shows 100 CPU usage by tomcat > > Symptom > System is initially ok, but is slowing down dramtically over time > when about 30 User are active > > What can we do to analyse the problem?
As the system slows down, do you see an increase in CPU usage? This can often indicate a problem with garbage collection. In this case, you would want to enable garbage collection logging to gather more information about the problem. If you don't see any increase in CPU usage, then you should take some thread dumps when the server is running slow (2 - 3 thread dumps, spread over a 30 - 45 second period is usually sufficient). These would indicate if there is thread contention or blocking that is causing the slow down. Dan --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
