Grigory Batalov 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? Why are there 121 messages being retried. What is in Mailman's smtp-failure log?
What does Mailman's smtp log look like? Does it show evidence of 'continuous processing'?
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?
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).
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