[Mailman-Users] Mailman 2.1.6 slowness...?

Carl Zwanzig cpz at tuunq.com
Fri Jul 15 23:55:36 CEST 2005

In a flurry of recycled electrons, Brad Knowles wrote:
> At 4:22 PM -0400 2005-07-15, Jeff Squyres wrote:

> >  thinking that this is not our problem (it was 500 in 2.1.5 as well) --
> >  indeed, the problem seems to be the rate at which mailman gives mail to
> >  sendmail, not how many mails it gives in each MTA transaction.
> 	Hmm.  That doesn't sound like a typical Mailman performance problem.
> 	Are your filesystems full?  Most Unix OSes will optimize for 
> speed, up until about 90% full.  At that point, they start optimizing 
> for space, and this is usually a pretty big performance hit.

Sendmail used to throttle itself based on load average of the host. With
new mailman code, and possible newer python (was python replaced?), you 
could be hitting one of those thresholds. It was somewhere in the 
sendmail.cf file.


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