Hi Sam & Co.,
I’ve been chipping away on spam filtering, DKIM, and other stuff to improve our
setup, and have tracked down an odd condition that I wanted to see if anyone
else has seen.
1. Running courier 0.71 + pythonfilter + spamassassin (spamd)
2. SpamAssassin is randomly sluggish. Running spamc manually, most of the time
completes in <1 second, but on occasion, some messages will take 20-30 seconds
to process (presumably URI lists being slow to respond).
3. Restarting courier (“service courier restart”) can sometimes cause an "Alarm
clock" during the stop phase, during filterctl stop, presumably because
pythonfilter is handling a message that spamd is being too slow on.
4. After start, pythonfilter is not started — 'filterctl start pythonfilter'
fails to bring it up with this:
filterctl start pythonfilter
ln: creating symbolic link `/etc/courier/filters/active/pythonfilter'
to `/usr/lib/courier/libexec/filters/pythonfilter': File exists
If I stop courier and get this condition to happen, there are stuck processes
running:
daemon 32271 0.0 0.0 3832 328 ? S 17:35 0:00
/usr/lib/courier/sbin/courierfilter start
daemon 32273 0.0 0.0 3800 512 ? S 17:35 0:00
/usr/sbin/courierlogger courierfilter
daemon 32274 0.0 0.0 183444 9188 ? S 17:35 0:00
/usr/bin/python /etc/courier/filters/active/pythonfilter
I have to kill -9 the courierfilter process, and then restart courier and stuff
flushes out fine.
What am I missing? I would think that “service courier stop” should definitely
nuke any process that it started up, but I know there’s a boundary between
filters and courier.
Thanks!
-Jeff
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