> If you specify say -q5m, does that mean that the daemon runs the queue > at 0, 5, 10, etc minutes past the hour, or is it 5, 10, etc minutes
> after the process was started.
>
> If it is the latter (and in my mind more likely) case, then surely the
> machines are out of sync with each other anyway?
I think it is the latter, but that does not matter: The clocks are
synchronised with NTP, so the first case would be a problem. If the
configuration changes, all machines reload it at once, so all master
processes start at once.