Re: dma: could not pick up queue file

On Fri, Nov 1, 2024, at 9:23 AM, John R. Levine wrote:
> On Fri, 1 Nov 2024, Dan Langille wrote:
>> This event occurred today.  These logs are slightly amended to obscure host names and email and IP addresses.
>>
>> Nov  1 00:00:10 wikis newsyslog[46335]: logfile turned over
>> Nov  1 03:05:42 wikis dma[46d60][90243]: new mail from user=root uid=26 envelope_from=<root@wikis.[redacted]>
>> Nov  1 03:05:42 wikis dma[dma][90258]: could not pick up queue file: `/var/spool/dma/Q46d60.432a50848050'/`/var/spool/dma/M46d60.432a50848050': No such file or directory
>> Nov  1 03:05:42 wikis dma[46d60][90243]: mail to=<dan@example.org> queued as 46d60.432a50848050
>> Nov  1 03:05:42 wikis dma[46d60.432a50848050][90243]: <dan@example.org> trying delivery
>> Nov  1 03:05:42 wikis dma[46d60.432a50848050][90269]: using smarthost (tallboy.[redacted]:25)
>> Nov  1 03:05:42 wikis dma[46d60.432a50848050][90269]: trying remote delivery to tallboy.[redacted] [10.0.0.1] pref 0
>> Nov  1 03:05:42 wikis dma[46d60.432a50848050][90269]: <dan@example.org> delivery successful
>> Nov  1 03:46:21 wikis dma[46d47][96425]: new mail from user=root uid=26 envelope_from=<root@wikis.[redacted]>
>
> Look again.  The failure was PID 90258 which I assume is the daemon, not 
> 90243 which is the program sending the message.  This suggests it is 
> indeed a harmless race condition.
>
> In my experience, the initial delivery always succeeds and it never 
> queues, so running the queue daemon once a day just in case should be 
> plenty.

Is this queue daemon sitting around waiting to do something? Where did it come from?

[16:30 wikis dvl ~] % sudo ps auwwx | grep dma
dvl    66535  0.0  0.1 12808  2376  1  S+J  16:30   0:00.00 grep dma

It's not there. So where did it come from?

-- 
  Dan Langille
  dan@langille.org