My experience with finding threading issues in NT/Win2k has been to get a
quad involved as soon as possible. Problems are often still hidden when
running duals.
-----Original Message-----
From: Marc Saegesser [mailto:[EMAIL PROTECTED]]
Sent: Thursday, May 24, 2001 8:05 AM
To: [EMAIL PROTECTED]
Subject: RE: Thread deadlocking in 3.2.2 beta 5?
Joel,
Thanks for the information. My test was using Tomcat stand-alone on a
dual-processor machine. I'll try to run the test again later today using
the ISAPI redirector.
> -----Original Message-----
> From: Joel Kozlow [mailto:[EMAIL PROTECTED]]On Behalf Of Joel
> - Jakarta List
> Sent: Wednesday, May 23, 2001 10:50 AM
> To: '[EMAIL PROTECTED]'
> Subject: RE: Thread deadlocking in 3.2.2 beta 5?
>
>
>
> Hello Marc (and others that have been so kind to help),
>
> Here is the rundown on what I have tested:
>
> * Running on a Quad Processor NT Enterprise 6 Sp6a
> * This server is production - fairly static content
> (w/no recompile)
> * Verified thread deadlocking behavior on 2 different
> multiprocessor servers running different apps.
> Both servers have the same problem.
> * Verified a single processor server running same
> apps and an exact copy of Tomcat and the conf
> files. No thread problem found.
> * There are very few contexts, and all do exist
> * Running both servers with ISAPI plugin behind IIS 4
> * Currently running with sdk 1.2.2 (now testing 1.3.1)
> * Both production servers are running with 128mb
> allocated to the JVM via startup param. No
> other startup params are used.
> * Both servers run apps containing Javabeans, JSPs,
> and Servlets. Javabeans do use a properties
> class with a static class variables.
>
> This issue has been very easy for us to reproduce. Thus,
> I assumed this must be our error in some way. I am sure
> many others are running Tomcat on multiprocessor NT servers?
> I am very committed to Tomcat in my division and I am willing
> to help out in any way I can. Please let me know if I can
> provide any further assistance. In the mean time, I am going
> to do the following:
>
> 1. Complete testing and port to 1.3.1
> 2. Install a thread monitor
> 3. Attempt to debug the source.
>
> Thank you again for your assistance!
>
> Joel Kozlow