[Mailman-Developers] Bug/Request for change

[Matthew Seidl]

Over the weekend one of the uesers on one of my lists had both their
DNS servers go down.  This means that any attempt to deliver mail to
them had a 4 minute DNS failure timeout.

This went fine, till about 5 messages for them accumulated in the
qfiles directory.  Then each qrunner that started up would try those 5
messages first, fail, and exceed its 15 minutes of runtime.  This
cycle would repeat forever.

It seems to me that qrunner should at least try messages in a most
recent first order, instead of oldest first.  But that might still
lead to starvation of some messages in the queue.

A better approach would be for the qrunner to leave a file around that
said where in the queue it had gotten to, so the next qrunner process
could start on the next message in the queue.  This should lead to the
whole queue being serviced before any elements are serviced a second
time.  Does this make sense?

I'm too new to mailman and python to take a stab at this myself, but I
wanted to report the bug.  If others agree that its a bug, and no one
else takes a shot at it, I might.  But it will require some
non-trivial modifications to qrunner I believe.

-=- Matthew L. Seidl 		email: seidl@cs.colorado.edu                =-=
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