On Mon, 7 Jan 2008 08:59:10 -0800, Mark Sapiro wrote: > >I have regular delays in message processing. Say, my server (Linux/Postfix) > >receives a letter at 17:36 and quickly delivers it to the mailman queue (?). > >Then message is hold for about 25 minutes and is processed again at 18:01. > > > >It is strange to me, why mailman keeps the message so long? > >How can I investigate such situation? > > > >Maybe, other messages in queue could be the reason? > > > >$ ls -1 /var/lib/mailman/qfiles/in/|wc -l > >0 > >$ ls -1 /var/lib/mailman/qfiles/out/|wc -l > >120 > >$ ls -1 /var/lib/mailman/qfiles/retry/|wc -l > >121 > > > Why is the out queue backlogged with 120 messages?
I guess, that is because "retry" messages come back to "out" queue
from time to time. In sum "out" and "retry" always give 200-250 letters.
> Why are there 121
> messages being retried. What is in Mailman's smtp-failure log?
It is full of errors:
Jan 08 01:55:00 2008 (13316) All recipients refused: {'[EMAIL PROTECTED]':
(450, '4.1.2 <[EMAIL PROTECTED]>: Recipient address rejected: Domain not
found')}, msgid: <[EMAIL PROTECTED]>
Jan 08 01:55:00 2008 (13316) delivery to [EMAIL PROTECTED] failed with code
450: 4.1.2 <[EMAIL PROTECTED]>: Recipient address rejected: Domain not found
with several different emails and different message-ids.
About 42000 lines per day.
> What does Mailman's smtp log look like? Does it show evidence of
> 'continuous processing'?
Well, there are messages like this:
Jan 08 01:55:11 2008 (12250) <[EMAIL PROTECTED]> smtp to sisyphus for 1 recips,
completed in 30.005 seconds
About 21000 posts per day, every took 30 seconds "for 1 recips".
Should they address more recipients or take less time?
> >There are 8 Incoming, 8 Outgoing, 4 Retry and 4 Bounce qrunners on the
> >server.
>
>
> Why so many runners? Do you really need that much parallelism?
I thought they would process queue faster.
> The issue appears to be a backlogged 'out' queue. In order to say more,
> we need to know what's causing all the retries (smtp-failure log) and
> whether there are outgoing messages taking inordinately long to
> process (smtp log).
--
Grigory Batalov,
ALT Linux Team
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