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From "Bernd Fondermann" <bernd.fonderm...@googlemail.com>
Subject Re: Confirmed but unidentified memory leak in RC2
Date Tue, 12 Sep 2006 15:44:22 GMT
On 9/12/06, Noel J. Bergman <noel@devtech.com> wrote:
> Bernd Fondermann wrote:
>
> > Maybe the OOM is only a sympton for other resources going out of
> > control, e.g. threads.  J5/JMX/JConsole would be able to track that.
>
> Quite possible.
>
> And it also seems that JAMES does not properly recover from the OOM, since I
> was able to log into RemoteManager, run memstat -gc, see 100MB free, and yet
> the SMTP threads were all blocked.

seems strange to me.

did you look into potential multi-CPU problems yet? maybe it'd be
worth to dig into this a little more:

- you could force James to run on a single CPU only, if system load
allows it (http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6378421
has some indications how this could be done)
maybe you are experiencing weird concurrency problems/race conditions.

- did you optimize the GC strategy? maybe it could help to explicitly
disable ParallelGC.

Anyone sucessfully running 2.3 on multi-CPU?

   Bernd

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