[Mailman-Users] High usage -- making Mailman "nice"
brad at stop.mail-abuse.org
Thu Dec 8 19:49:21 CET 2005
At 1:12 PM -0500 2005-12-08, John Dennis wrote:
>> We're running MM v2.1.4-4, we're experiencing such high usage on our
>> dual xeon server when mailman sends to 4000 users that port 25
>> becomes unresponsive. is there a way to "nice" the mailman delivery?
> It sounds like your MTA is inefficient in some manner, is not a huge
> load for a dual server backed with a high bandwith connection. How many
> client connections can it simultaneously handle? Any chance you've got
> DNS delays (especially reverse lookup)?
They could also be doing all sorts of
authentication/authorization or anti-spam/anti-virus checks on their
It is clearly stated in the FAQ that this is generally a bad idea
for outgoing mail from the mailing list, since all that stuff should
have been checked on the way in.
The OP would be well-served to go to the Mailman FAQ Wizard at
<http://www.python.org/cgi-bin/faqw-mm.py> and search for
"performance", and read all the related FAQ entries. If you go down
that list, I bet you'll find the problem and be able to relatively
easily fix it.
Brad Knowles, <brad at stop.mail-abuse.org>
"Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety."
-- Benjamin Franklin (1706-1790), reply of the Pennsylvania
Assembly to the Governor, November 11, 1755
LOPSA member since December 2005. See <http://www.lopsa.org/>.
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