On 10/6/22 11:16, Chris Axtell wrote:
I’ve got a strange question, that hopefully someone can point me in the right
direction.
We’ve got a Mailman 2.1.26 server, with Postfix 3.3.0 as the MTA which has been
running for several years; however, recently we’ve been noticing random cases
where posts sent to a list (it can be any list hosted by the server), are
received by Postfix, handed off to Mailman, appear in the list’s archives, but
are never sent back out to the list members.
Are they in the `shunt` queue? What's in Mailman's `error` log? What's
in Mailman's `qrunner` log, i.e. evidence that OutgoingRunner is dying
and restarting?
In an effort to troubleshot this we have a scheduled task on another sever that
sends an hourly “heartbeat” message to a specific list. We’re seeing the
following random patterns:
* Some days every hourly message arrives to the list, is archived, and is
successfully sent to list members.
* Some days several of the hourly messages arrives to the list, is
archived, and is successfully sent to list members, only to be followed by some
(random 1-3) hourly messages that are archived but not sent out, then delivery
resumes as expected.
There is no consistency with time of day regarding to which messages are not
being received by list members. Checking both the Postfix mail.log, and Mailman
post log files we notice that the messages which are received by the list
members is record within both files; however, the missing messages are only
recorded within the Postfix log file, the matching entry in the Mailman post
log is absent.
Because the `post` log entry is written by OutgoingRunner when the
outgoing message has been delivered.
--
Mark Sapiro <m...@msapiro.net> The highway is for gamblers,
San Francisco Bay Area, California better use your sense - B. Dylan
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