Bugs item #1809706, was opened at 2007-10-08 19:31
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Category: command line scripts
Group: 2.1 (stable)
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Cedric Knight (cedders)
Assigned to: Nobody/Anonymous (nobody)
Summary: genaliases on Postfix is inefficient and can cause bounces
Initial Comment:
We're running Mailman 2.1.5-8sarge5 and Postfix 2.1.5-9 on a mail server with a
few hundred lists. For reasons described on Bug [ 1809697 ], we run genaliases
as a cron job.
While genaliases is running, incoming posts and admin mail to some lists can
bounce, with "550 User unknown in virtual alias table". It appears that
genaliases loops over all lists and calls
MTA.create(mlist, nolock=True, quiet=quiet)
for each list, which in turn calls _update_maps() which runs Postfix's postmap
and postalias commands. Hence for a time while running genaliases the list of
mappings loaded into Postfix is incomplete. The process can also take over a
minute because of this repeated hashing.
Suggested fix (would patch on Bazaar but repository is empty :) -
add "if not nolock:" before
_update_maps()
in Mailman/MTA/Postfix.py
and call "MTA.create(None, quiet=quiet)" once more before
os.umask(omask)
in bin/genaliases
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