> Date: 26 May 1995 10:04:00 -0800
> From: "Marie Franco" <email@example.com>
> Subject: Majordomo and large listser
> To: "Majordomo-users" <firstname.lastname@example.org>
> Subject: Time: 9:52 AM
> OFFICE MEMO Majordomo and large listservs Date: 5/26/95
> We are just starting out with Majordomo, and have set up a small list, but we
> may develop lists that could potentially end up with 10,000 addresses to mail
> Do any of you have experience with Majordomo and such a large number of
> subscribers to a list, and also if load on our system might be an issue?
With a list of some 600+ subscribers we did run into some problems,
NOT with Majordomo, but with the sendmail equivalement (ZMailer).
The router component of Zmailer did grow with this number of
subscribers above memory limits and made the machine go in a long,
long, sleep... If the problem was situated within the router program
or some effect of bad installation practice on my side was not clear
and may never be.
Anway, some of the fiddling I tried to get the situation back in line
might interest you. Sorting the list lessens the burden on the
mailcomponent (but not enough). I did break the general subscription
list into several sublist (with automatic breakdown using
crontab & split). The first -outgoing alias point to the next who
points to the next ... etc. This did bring the burden down to some
manageable degree. All this has of course to do with address
resolution and probably one should points its attention more to the
outgoing mail part than to the Majordomo side.
My 5 cents in the debate.
Michel Daulie - Majordomo maintainer UFSIA