Hi Folks, Tomcat 5.5 Java 1.5 Hibernate 3.2 (with C3P0 connection pooling)
I'm currently experiencing a problem in our production environment where Tomcat very quickly consumes 100% of the CPU and doesn't give it back. The webapp (an ecommerce system) runs absolutely fine on my laptop (inside Eclipse), so I'm assuming that this is some kind of environmental issue. The problem begins as soon as a user tries to do something that is momentarily processor intensive, like performing a search. I would expect the CPU to peek for a second or so (which it does on my laptop), but I would then expect the request to be fulfilled and CPU usage to drop back to 0%. However, CPU usage remains at ~99% until Tomcat is restarted. The machine is a P4 3GHz with 1GB of RAM. I have given Tomcat a heap size of 384MB, however it only seems to be consuming about 120MB at most. I have attached JProfiler to Tomcat in order to try and get an idea of where the CPU time is being used but sadly I am no wiser. None of my code appears to be eating CPU time (and neither do any of Tomcat's Java threads). I'd be really grateful if someone could give me some ideas about how to go about troubleshooting this. Cheers, Richard. -- View this message in context: http://www.nabble.com/100--CPU-usage-tf4166493.html#a11854043 Sent from the Tomcat - User mailing list archive at Nabble.com. --------------------------------------------------------------------- To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
