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From Tim Funk <>
Subject Re: Rouge tomcat processes
Date Wed, 12 Nov 2003 14:17:51 GMT
Nope. Your best chance is to perform some thread dumps. (Google on how to do 
a thread dump)

 From the thread dumps get some when things are good, and multiple ones when 
things are bad. With luck your see a pattern in the dumps.

You'll notice a lot of  stuff waiting and sleeping that have similar traces, 
you can ignore those since those are probably workers waiting for work.


Chris Haskins wrote:

> Hi,
> We have a problem in that tomcat processes are taking up 100% CPU. We're
> just upgraded the JVM to jdk1.4.2_02 to try and fix this, as per the FAQ
> at and this hasn't changed anything. We don't know what is
> causing this and wondered if there is any way to match the pid's with
> Tomcat session id's so we can look through the logs to investigate what
> might have caused this?

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