[Mimedefang] multiple CPUs, multiple milters!

[Fredrik Hansen]

On Mon, 8 Sep 2003, Anne Bennett wrote:

> 
> Folks,
> 
> My hardware has two CPUs, seen by the Linux kernel (2.4.21) as four
> CPUS -- which is apparently normal for these Intel Xeon processors
> with "hyperthreading".  Weird, but the system works fine.
> 
> But... when I start up mimedefang (the milter process), I get four of
> them!  The PID in the pidfile is that of the first one (lowest PID).
> 
> I have not yet tested the set-up hard, though initial light testing shows
> MIMEDefang to be working as expected.  So far, the only problem I have
> is that during shutdown, killing just the PID registered in the
> pidfile is not sufficient to get rid of all four processes.
> 
> I will be testing further shortly, but I have a bad feeling about
> this; am I really supposed to be getting a milter process for each CPU?
> (For example, Tru64Unix does not do this.)  Has anyone else come across
> this with Linux on a multi-CPU host?
> 
> The milter is started as:
> 
>   /local/paths/mimedefang -P /local/var/spam/mimedefang-milter.pid \
>     -m /local/var/spam/mimedefang-multiplexor.sock \
>     -p /local/var/spam/mimedefang-milter.sock -r -t -k -T -X
> 
Im running on a smp box, and have no such problems.

why don't you just rewrite the shutdown script to do a killall 
<processname>, it should work aswell.

Best Regards,
Fredrik Hansen