Mailscanner eating my resources. I just can't fix it. Help!

[Ugo Bellavance]

Robert Borkowski wrote:

> Hello all!
>
> I've been really trying to solve it myself, but I'm really running out of
> ideas.
>
  > If I'll terminate those continuously running processes, all is back to
> normal,otherwise my incoming queue is growing and waiting to be process by
> MailScanner/SpamAssassin. If everything is running normally, my CPU usage
> is 5%. Otherwise, it's up to 97-99%. This happens very randomly, sometimes
> all is fine for an hour and then I still one of perl processes are running
> continuously and the time is growing. System load is +1 then. After a
> while another process will do the same and so on.
>

Is your system swapping at these moments?

By the way, a system load of 1 is far from being critical.  It only
means that 1 process is waiting for cpu time or I/O.

Having a cpu usage of 99% is normal when MailScanner is processing
messages, on a dedicated MailScanner machine.

You should check the reason for your Spamassassin timeouts I think.

Most of performance problem are related to a system starting to swap,
but with the info you gave us we can't really tell if it is the problem
or not.

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