On Tue, 13 Jan 2004, Mail Monitor wrote:
> Hi,
>
> We have installed SA 2.6 on linux RH 9.0 on a mail
> gateway. The total mail transaction/day through this
> server is 75,000 and spam mails caught by SA is around
> 10-15%. But spam mails are still getting through, we
> have not implemented razor, bayesian rules etc. The
> number of spamc processes forked is high(above 200).
> Because of this milter goes into error state bypassing
> SA.
>
> Please do let us know if SA could be made stable
> for this heavy load and also ways to make it more
> aggressive. Any help/suggestions would be appreciated.
First thing, beef up your hardware configuration.
To handle 75,000 messages/day, you need a 1 second per message
average processing rate.
If you aren't running any network checks (No DSBL, razor, dcc, etc)
and not running any bayes, this should be easily acheivable with
reasonable hardware ( 1Ghz PIII or faster, 512Mb RAM).
My bet is that you don't have enough RAM in that box.
Once you've got a stable base config that can keep up with
your load, add Bayes (get it stable), then turn on net checks.
Bayes will add CPU/RAM demands but it will be a deterministic
increase. Net checks don't take much addtional CPU/RAM but they
introduce non-deterministic delays due to network problems and
load on the remote servers, etc.
When running with no net checks, I usually see sub-second processing
time (base SA + Bayes) but with net checks on, times vary from
sub-second to 30 seconds per message soely due to remote
delay factors (30K messages/day).
--
Dave Funk University of Iowa
<dbfunk (at) engineering.uiowa.edu> College of Engineering
319/335-5751 FAX: 319/384-0549 1256 Seamans Center
Sys_admin/Postmaster/cell_admin Iowa City, IA 52242-1527
#include <std_disclaimer.h>
Better is not better, 'standard' is better. B{
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