> From: maggie [mailto:[EMAIL PROTECTED] 
> Subject: Re: find out the possible bottleneck webapp
> 
> So what I want is a light weight tool, just find out which 
> webapp causes the problem when Tomcat runs abnormally.

Take a look at the jstack tool to remotely access stack traces on a
running JVM:
http://java.sun.com/javase/6/docs/technotes/tools/index.html#troubleshoo
t

If accessing remotely, you'll also need jsadebugd; if running jstack
locally, you don't need the daemon.

You can also use JConsole, but it only dumps the stack for one thread at
a time.

 - Chuck


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