[SAtalk] SA loads & times

[Rick Beebe]

I just updated my production SA environment from 2.41 to 2.60 and am 
running into load issues. I'm running SA on a 2-node Tru64 cluster. Each 
node has 4 gigs of memory and dual 667mHz Alpha CPUs. We process about 
150,000 messages per day but, of course, it isn't an even distribution. 
We can get up to 25,000 messages an hour during the day. We're using 
spamd/spamc with only local tests. I'm struggling with two issues. One 
is the amount of memory spamd is using. I had started with evilrules, 
popcorn, etc but had to take them back out as spamd was sucking up too 
much memory. Without those, it's still considerably larger than 2.4 was. 
The second problem is that spamd is taking longer to process the 
messages. It's doing more, obviously. 2.41 processed most messages in 
less than a second (usually 0.4 - 0.6). 2.60 is taking 1.4 - 20 seconds. 
The problem here is that incoming mail starts to back up. So I try to 
allow more spamd processes to handle it then the machine bogs down. I've 
been playing with -m to try to find an optimal setting.

Is anyone else running SA in a largish environment? I'm looking for any 
and all tuning hints as I really don't want to go back to 2.4. I am 
using a system-wide bayes. I'm not sure how much drag that adds either.

--
_______________________________________________________________________
  Rick Beebe                                            (203) 785-6416
  Manager, Systems & Network Engineering           FAX: (203) 785-3481
  ITS-Med Production Systems                    [EMAIL PROTECTED]
  Yale University School of Medicine
  Suite 124, 100 Church Street South           http://its.med.yale.edu
  New Haven, CT 06519
_______________________________________________________________________


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