System: Redhat 7.2, Mailman 2.0.13, webservers (for web-interface) and
Postfix mailserver (for crons/processing) nfs-mounting Mailman
installation.
After upgrading Python 1.5 (as per RHSA), public web-subscription to
mailman lists no longer worked ("We've hit a bug!" -> ImportError:
cannot import name Pending). So we installed Python2 on the webservers
and forced Mailman to use it. Seemed to work for a few hours, and then
it appeared that no lists are processing messages. The error generated
every few seconds (a few dozen lists some with 10k+ members) was as
follows:
Feb 06 10:01:02 2003 qrunner(1209): Traceback (innermost last):
Feb 06 10:01:02 2003 qrunner(1209): File "/www/mailman/cron/qrunner",
line 283, in ?
Feb 06 10:01:02 2003 qrunner(1209): kids = main(lock)
Feb 06 10:01:02 2003 qrunner(1209): File "/www/mailman/cron/qrunner",
line 253, in main
Feb 06 10:01:02 2003 qrunner(1209): keepqueued = dispose_message(mlist,
msg, msgdata)
Feb 06 10:01:02 2003 qrunner(1209): File "/www/mailman/cron/qrunner",
line 121, in dispose_message
Feb 06 10:01:02 2003 qrunner(1209): if BouncerAPI.ScanMessages(mlist,
mimemsg):
Feb 06 10:01:02 2003 qrunner(1209): File
"/www/mailman/Mailman/Bouncers/BouncerAPI.py", line 58, in ScanMessages
Feb 06 10:01:02 2003 qrunner(1209): func = getattr(getattr(getattr(mod,
'Bouncers'), modname), 'process')
Feb 06 10:01:02 2003 qrunner(1209): AttributeError : process
My first thought was to try upgrading python on the mailserver which
does the processing:
rpm -ivh --nodeps python2-2.1.1-2.72.i386.rpm
cd /usr/bin/
rm -f python;ln -s python2 python
This created new errors in the Mailman logs:
Feb 06 10:51:02 2003 qrunner(22539): Traceback (most recent call last):
Feb 06 10:51:02 2003 qrunner(22539): File "/www/mailman/cron/qrunner",
line 283, in ?
Feb 06 10:51:02 2003 qrunner(22539): kids = main(lock)
Feb 06 10:51:02 2003 qrunner(22539): File "/www/mailman/cron/qrunner",
line 253, in main
Feb 06 10:51:02 2003 qrunner(22539): keepqueued =
dispose_message(mlist, msg, msgdata)
Feb 06 10:51:02 2003 qrunner(22539): File "/www/mailman/cron/qrunner",
line 121, in dispose_message
Feb 06 10:51:02 2003 qrunner(22539): if
BouncerAPI.ScanMessages(mlist, mimemsg):
Feb 06 10:51:02 2003 qrunner(22539): File
"/www/mailman/Mailman/Bouncers/BouncerAPI.py", line 57, in ScanMessages
Feb 06 10:51:02 2003 qrunner(22539): mod =
__import__('Mailman.Bouncers.'+modname)
Feb 06 10:51:02 2003 qrunner(22539): File
"/www/mailman/Mailman/Bouncers/Catchall.py", line 34, in ?
Feb 06 10:51:02 2003 qrunner(22539): import regsub
Feb 06 10:51:02 2003 qrunner(22539): File
"/usr/lib/python2.1/regsub.py", line 20, in ?
Feb 06 10:51:02 2003 qrunner(22539): import regex
Feb 06 10:51:02 2003 qrunner(22539): ImportError : No module named
regex
Decided to downgrade, so then I simply did a:
cd /usr/bin
rm -f python; ln -s python1.5 python
The errors immediately stopped being generated, and the contents of the
qfiles directory dropped from 400+ files to 60 files in about 5 minutes.
I guess at this point I am nervous that this will come back to haunt me,
perhaps again in a few hours. Any insight or archived messages I failed
to locate would be appreciated.
John Masterson
Modwest
Powerful, Affordable Web Hosting
http://www.modwest.com
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