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Tomcat slowing down

 
Greenhorn
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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?

thanks
 
Sheriff
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Welcome to the Ranch!

If Tomcat is using 100 CPU usage, you need to find the cause. Search for infinite loops, infinite recursion, that kind of thing. The few times I had the same problem (well, 1 core was being fully utilized) there was a bug that caused an infinite loop.
 
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