Geert Stappers:
> On Fri, Mar 17, 2017 at 01:25:45PM -0400, Viktor Dukhovni wrote:
> > > On Mar 17, 2017, at 1:06 PM, Sean Son <linuxmailinglistsem...@gmail.com>
> > > wrote:
> > >
> > > Hello all
> > >
> > > We would like to monitor Postfix mail queues using SMNP so we
> > > can receive alerts whenever the mail queue reaches a certain
> > > threshold. What OID and MIB would we have to use to be able to
> > > monitor Postfix mail queues?
> >
> > I don't recall a specific MIB that covers mail queues, however
> > I recommend against monitoring the queue's message count, too
> > many false alarms from spikes in traffic. What is more useful
> > to monitor is average time from queue entry to queue exit, and
> > also average age in the active queue.
> >
> > See QSHAPE_README and also monitor the "c+d" delay sum from
> > the "delays=a/b/c/d" log entries (de-duping for multi-recipient
> > deliveries of a single message). At prior employer, we computed
> > a slowly exponentially decaying moving average of the "c+d" times
> > as indicators of current congestion, and queue age as indicators
> > of "stuck" messages.
> >
> > Just counting messages is not terribly useful IMHO.
> >
>
> Is the delay information available in /var/spool/postfix/public/showq ?
Viktor is talking about files that are no longer in the queue.
There is a fundamental difference between queue (current state)
and logging (history).
Wietse
