Chris,

Thanks for looking at this.

Tomcat version is 6.0.32.
mod_jk is at 1.2.31


Someone else did the thread dump so I'm assuming they did it on the right
process.

On Tue, Jul 10, 2012 at 12:19 PM, Christopher Schultz <
ch...@christopherschultz.net> wrote:

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> Simon,
>
> On 7/9/12 4:24 PM, Simon, Leonard wrote:
> > Well our Tomcat went out to lunch again and we had to recycle the
> > webserver to get things stablized. By this I mean we get reports
> > from the users that screens become unresponsive and looking at a
> > top we see tomcat process taking 100% CPU.
>
> Are you sure this is the right process?
>
> > Was able to do a thread dump captured with a kill -3 PID and here
> > it is if anyone is so inclined to comment on it.
>
> This thread dump shows a mostly-idle server with the exception of
> those threads in socketAccept() (not sure why these count as RUNNABLE
> when they are really blocking) and those executing reads from the
> client connection(s).
>
> What exact version of Tomcat are you using, and what version of mod_jk
> (or, if you are using mox_proxy_ajp, what httpd version)? IIRC, there
> have been some stability improvements in recent Tomcat versions around
> the worker threads being returned to their associated connectors.
>
> - -chris
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