[Mailman-Users] mailman 2.1b3 qrunner performance (backlog)
Andrew D. Clark
andrew.clark at ucsb.edu
Thu Oct 17 23:11:54 CEST 2002
Doesn't look like it helps when the backlog is associated with only one
particular high volume list, as it seems (by looking at the /locks
directory) that only one qrunner can operate on a given list at a time.
The other ArchRunner is basically idle. However, it might help if the
qrunner tasks for one particularly high volume list were impacting
performance for other lists.
Campus Network Programmer
Office of Information Technology
University of California, Santa Barbara
andrew.clark at ucsb.edu (805) 893-5311
--On Thursday, October 17, 2002 11:17:16 -0700 "Andrew D. Clark"
<andrew.clark at ucsb.edu> wrote:
> I recently upgraded from mailman 2.0.12 to 2.1b3 and am quite pleased
> with the new qrunner setup (among other things). We have one
> particularly high volume list with very bursty postings (since the main
> poster is scripting postings). In mailman 2.0.12 we'd often have
> hundreds of files stuck in the qfiles directory, sometimes for hours.
> Now, postings go through much more quickly. However, archiving still
> lags quite a bit, and that qrunner has _very_ long run times:
> mailman 5476 93.5 2.7 32188 31388 ?? R 4:18PM 115:01.18 qrunner
> /home/services/mailman/bin/qrunner --runner=ArchRunner:0:1 -s (python)
> I'm pretty sure lag in archiving is what was causing the whole thing to
> back up in 2.0.12. So, although the backlog is now mostly isolated to
> archiving (a very good thing) I'm looking for a solution to fix that.
> Not archiving is not an option. Should forking more ArchRunners help
> with this, or will this just cause more contention?
> My platform is FreeBSD 4.6-STABLE on a 700mhz PIII with 1GB RAM, running
> mailman 2.1b3 with Exim 4.05.
> Andrew Clark
> Campus Network Programmer
> Office of Information Technology
> University of California, Santa Barbara
> andrew.clark at ucsb.edu (805) 893-5311
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