[Mailman-Developers] Serious qrunner problem with mailman 2.0b4

[Nigel Metheringham]

I made the big mistake of upgrading mailman a few days before going 
away for most of a week.  Of course it all went strange whilst I was 
away (or more accurately the strangeness became significantly 
noticeable).

What appears to have been happening since a few days following the 
upgrade from 2.0b2 to 2.0b4 is that the Yahoo Bouncer module started 
throwing exceptions, which blocked a whole lot of mail in the queue.  
Some mail went through without any apparent problems, other mail got 
blocked.  For example, digest messages generated on the daily digest 
flush went out OK, but ones generated due to mail volume (ie 
asynchronously generated), got stuck in the queue.

The error message generated was
  qrunner(16931): Traceback (innermost last):
  qrunner(16931):   File "/home/mailman/cron/qrunner", line 209, in ?
  qrunner(16931):      kids = main(lock)
  qrunner(16931):   File "/home/mailman/cron/qrunner", line 178, in main
  qrunner(16931):      keepqueued = dispose_message(mlist, msg, msgdata)
  qrunner(16931):   File "/home/mailman/cron/qrunner", line 68, in 
dispose_message
  qrunner(16931):      if BouncerAPI.ScanMessages(mlist, mimemsg):
  qrunner(16931):   File "/home/mailman/Mailman/Bouncers/BouncerAPI.py",
 line 54, in ScanMessages
  qrunner(16931):      addrs = func(msg)
  qrunner(16931):   File "/home/mailman/Mailman/Bouncers/Yahoo.py", 
line 31, in process
  qrunner(16931):      if string.lower(msg.get('from')) <> 
'mailer-daemon@yahoo.com':

I twiddled Yahoo.py slightly but couldn't quite see the problem, so 
finally removed it from the Bounce API stuff, and the queue then 
unblocked itself.

	Nigel.
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[ Nigel Metheringham                  Nigel.Metheringham@VData.co.uk ]
[ Phone: +44 1423 850000                         Fax +44 1423 858866 ]