We've been using Mailman for a while now, (still actually running Version 1.1). We've started to hit some problems with high message volumes to individual list. We are seeing multiple python processes trying to deliver to the same mailing list, and getting hung waiting on CPU.
As we start loking into ways to solve this problem, I thought I'd send a note out to see if other people are seeing this type behavior and what they are doing to solve it.
Can Mailman be run on multiple receiving mail servers and safely NFS mount the mailman directory ? Or do we only get more CPU capacity by going to a bigger box?
Have there been any performance enhancements between the current version and the 1.1 version that we are running? I've been trying to find a Changelog, and haven't found what I'm looking for so far.
We are also using python 1.5.2. I'm not sure what has changed in that distribution as well. We are seeing some python processes seem to have a fairly high memory footprint.
Right now we are running on Solaris, and for political and financial reasons, that will probably not change in the next year or so.
We are also running our lists on the mail server with users. We are strongly considering moving the lists to a separate list server.
If anyone has any suggestions, I would appreciate them.
Thanks Chris G.
On Sat, Sep 29, 2001 at 05:00:32PM -0500, Chris Greer wrote:
Right now we are running on Solaris, and for political and financial reasons, that will probably not change in the next year or so.
Solaris is cool.
We are also running our lists on the mail server with users. We are strongly considering moving the lists to a separate list server.
I would seperate it off and you should get some gain that way.
Also, what MTA are you using?
With Postfix, I can deliver 30K messages pretty damn quick. When I was still using Sendmail and Mailman 1.0 - it would be a few hours.
Qmail should be almost as fast :)
-- Mike Horwath IRC: Drechsau drechsau@Geeks.ORG Home: 763-540-6815 1901 Sumter Ave N, Golden Valley, MN 55427 Opinions stated in this message, or any message posted by myself through my Geeks.ORG address, are mine and mine alone, period.
We are currently using sendmail, but are investigating postfix.
Chris G.
Mike Horwath wrote:
On Sat, Sep 29, 2001 at 05:00:32PM -0500, Chris Greer wrote:
Right now we are running on Solaris, and for political and financial reasons, that will probably not change in the next year or so.
Solaris is cool.
We are also running our lists on the mail server with users. We are strongly considering moving the lists to a separate list server.
I would seperate it off and you should get some gain that way.
Also, what MTA are you using?
With Postfix, I can deliver 30K messages pretty damn quick. When I was still using Sendmail and Mailman 1.0 - it would be a few hours.
Qmail should be almost as fast :)
-- Mike Horwath IRC: Drechsau drechsau@Geeks.ORG Home: 763-540-6815 1901 Sumter Ave N, Golden Valley, MN 55427 Opinions stated in this message, or any message posted by myself through my Geeks.ORG address, are mine and mine alone, period.
Hi,
qmail is PDQ as well - when we run the newsletter, we queue up 30,000 messages at once in a matter of minutes; after fifteen minutes the queue is down to a few hundred, and the vast majority of those are international and/or busted receiving hosts that are failing connect on the first try (and second, and sometimes third...)
I'm elated by the whole thing ... we started out with qmail and Mailman, and started paring out components of MM we didn't need, and writing in stuff we didn't have, and the end result looks very little like what we started out with ... but in essence, the send process is down to thirty-odd lines of script, running on a workstation machine that's 1/4 as fast with 1/10 the memory and 1/20 the disk space, and it runs twice as fast as (and way, WAY more reliable than) our previous, expensive, CPU-intensive, crash-twice-a-day Windoze app on our massive Dell server. (Ye gods, what I'd give to see *this* thing running on *that* server.)
Anyway, suffice it to say, qmail will kick some serious behind. :-)
=) Amanda
Mike Horwath wrote:
With Postfix, I can deliver 30K messages pretty damn quick. When I was still using Sendmail and Mailman 1.0 - it would be a few hours.
Qmail should be almost as fast :)
participants (3)
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Amanda -
Chris Greer -
Mike Horwath