[Mailman-Users] mailman 2.1b3 qrunner performance (backlog)

[Andrew D. Clark]

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.

--
Andrew Clark
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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