Just to update... it appears this technique worked for me...

my server has been up under full load for about 9 hours, and is only
using about 1/2 my physical memory ...whereas before the fix it would
have already gobbled up all the physical and most of the swap memory by
now...

Thanks !

TedT




On Fri, 2005-12-09 at 08:08 +0800, Ted Targosz wrote:
> Everyone, 
> 
> Thanks for the offers of help and tips...
> 
> > How many users?
> about 350
> 
> > How much mail is being transmitted?
> a few thousand messages per day.
> 
> Since almost all of you said the same thing:  "configure saslauthd to
> fork connections instead of threads",  
> 
> I've added FLAGS="-n0 -s 2048 -t 3600 -c "  to /etc/init.d/saslauthd
> and to  /etc/sysconfig/saslauthd
> 
> and restarted..  I'll keep an eye on things and report back if this
> helps.
> 
> 
> 
> 
> 
> 
> On Thu, 2005-12-08 at 02:34 -0500, Mark Nernberg wrote:
> > On 12/7/05 11:22 PM, "Ted Targosz" <[EMAIL PROTECTED]> wrote:
> > 
> > > I'm running a Dell PE1850 with 2 GB of ram  and RHEL 4.0 with a fairly
> > > orthodox  implementation following  Luc de Louw's
> > > Postfix-Cyrus-Web-cyradm-HOWTO   and also running squirrelmail.
> > > Its been running nicely for a few weeks now, but its hung on me a few
> > > times and I think I've got a memory leak somewhere...   i notice that
> > > after a reboot,  memory utilization slowly creeps up such that within 24
> > > hours both the physical and swap memory are all utilized...
> > > 
> > > has anyone ever seen this and might give me some tips on where to start
> > > looking for the problem?
> > 
> > This is not enough information.
> > 
> > How many users?
> > 
> > How much mail is being transmitted?
> > 
> > Without knowing more, but wanting to help, I believe SASL could be the
> > culprit.  Try restarting saslauthd:
> > 
> > # saslauthd -n 0
> > 
> > The -n option forces saslauthd to fork a new process for each connection,
> > which, according to the man page, "can help to solve leaks in some
> > deployments".
> > 
-- 
Ted Targosz <[EMAIL PROTECTED]>

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