Hmmm...we don't do hot deploys, but the different generations are
definitely something to look at.

Thanks!
Dhruva

--- Jeff Tulley <JTULLEY@(protected):
> A while back somebody mentioned that if you continuously redeploy a
> web
> application, the symptoms you are mentioning occur. This is because
> of
> all of the objects that are stored in the "permanent generation"
> memory.
> This permanent generation runs out of space, even though the new
> generation and old generation heaps still have room to grow. (The
> permanent generation's size is a fixed percentage of the total
> memory).
> I do not know if this is something that can or is fixed in the most
> recent builds and latest major version (5) of Tomcat.
>
> On NetWare, we have a view into the memory where we can see how big
> the
> perm gen is and what percentage of it is allocated. I do not know if
> such a thing exists on other platforms though. If it does, I
> certainly
> have not yet found it.
>
> Searching the archives (at http://marc.theaimsgroup.com ), it looks
> like it could have something to do with the classloader layout of
> your
> application:
>
> http://marc.theaimsgroup.com/?l=tomcat-user&m=107046034505454&w=2
>
>
> >Although the possibility of a memory leak (sorry--unintended object
> >retention) has not been completely ruled out (yes, I'm running the
> >applications through a profiler), I'm quite puzzled that this
> problem
> >would occur when, by all indications, memory use is nowhere near the
> >limit.
>
>
> Jeff Tulley (jtulley@(protected))
> (801)861-5322
> Novell, Inc., The Leading Provider of Net Business Solutions
> http://www.novell.com
>
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