> From: Mark Stevens [mailto:mark.stevens99@(protected)]
> Subject: Tomcat consuming entire CPU.
>
> My JRE:java version "1.3.1_14"

You might want to try a JRE that is a bit more up to date than that.
The 1.3.1 leg is up to _20 and even that is unsupported on everything
other than Solaris 8 (falls into the "Vintage Support Period"). Do you
have the required Solaris patches installed? Also, shouldn't that be a
JDK, not a JRE?

> The server is running Oracle, Tomcat, Apache 2.2 and a Content
> Management System, Operating system is Solaris 8 running on sun4u Sun
> Fire V240 with 4GB of RAM.

What Tomcat version? Current ones require a 1.4 or 1.5 JRE.

> Every so often the java process for Tomcat consumes an entire CPU, and
> requires Tomcat to be killed, and then restarted, this is happened
> quiet load with only a couple of HTTP requests coming through every
> second.

What does a thread dump show?

> I've heard it's not good to set Xms too high.

You can't set it larger than whatever the maximum contiguous virtual
space for a process is, but that's the only consideration. Regardless,
that's unlikely to be your problem.

- Chuck


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