Sounds premature to blame Tomcat (or that version) for this.   I can think of a lot of 
questions I would want to have answered before I assumed it was a problem specific to 
3.3:

- does this happen when you run against Tomcat standalone, or only when running 
through Apache?  mod_jk can be a pain in the &^%&^%, but in my experience it has 
always either completely worked or completely not worked.
- what do you mean by "can't keep app running".  Does the JVM exit?  If not, what's 
the behavior?  Error responses?  Hung responses?
- if responses are hanging, I would get a thread dump and expect to see one or more 
threads deadlocked.
- does it happen in a single-client test, or only when multiple clients are accessing 
(again, that would indicate a threading problem)
- is this something that worked satisfactorily with earlier versions of infrastructure 
and is only now breaking?  Or is this new development?

dwh


Ed Tybursky wrote:

> I am having major downtime issues currently our environment is this:
>
> Apache 1.3.20 + mod_jk
> Tomcat 3.3
>
> I cant seem to keep an application running for any matter of time. Nothing is ever 
>reflected in the logs and logging is set to DEBUG. Is tomcat 3.3 just a total piece 
>of junk?? should I at least upgrade to 3.3.1 or just totally move to 4.0??
>
> I really need some help.
>
> Thanks
> Ed


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