Stan Hoeppner:
> On 2/9/2013 1:49 PM, Wietse Venema wrote:
>
> > Whatever command pipe(8) executes, it will have to
> >
> > 1) terminate
> > AND
> > 2) close stdout and stderr.
> >
> > If that command does not do both then pipe(8) will wait (up to a
> > configurable time limit after which it kills the process).
>
> spamassassin unix - n n - - pipe
> user=nobody argv=/usr/bin/spamc -f -e
> /usr/sbin/sendmail -oi -f ${sender} ${recipient}
>
> Ok, so spamc is being called to pipe the msg to spamd, and should
> terminate after doing so.
Yes.
> When finished processing the msg, spamd pipes the msg back into
> Postfix via the sendmail compatibility command, correct?
Unknown. I don't use spamassassin. I would not exclude the possibility
that spamc invokes /usr/sbin/sendmail.
> I just tracked the processes via top with a test msg. pipe spawned,
> spamc spawned and terminated instantly, I saw the message in my MUA
> within 5 seconds, and somewhere around a minute later the pipe process
> terminated.
As documented, most Postfix daemons wait for up to 100s for more
work, before they terminate.
Wietse
