> From: Goldsmith, Neil J. (Neil) [mailto:ne...@avaya.com]
> Subject: Memory, handles and threads increasing in Tomcat 5.5
> 
> We are using perf mon to keep an eye on various counters in Tomcat.

Probably a waste of time.  Use a Java profiler to see what's really going on.

> We find after about 8 hours, we see this huge jump in thread count,
> memory and handles inside Tomcat.

Most likely a bug in one of your webapps.  Again, a profiler can tell you where 
the resource allocations are coming from.

> Does this sound like a GC issue?

Not likely.

> What is the best tool we can use to gather better information around
> the problem, both free and for fee?

There are free profilers built into the Sun JDK (they're better in 1.6), and 
YourKit is highly regarded if you want to pay for it.

 - Chuck


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