On Monday, November 4, 2002, at 07:55 AM, Pelle Lundstr�m wrote:
I have a "fairly" standard toaster the changes i've made are mostly in setting the softlimit and concurancy settings.Spam/Virus scanning is extremely processor intensive. What do your quarantine logs say? Maybe you are getting a lot of viruses. What is your incoming concurrency set to? Maybe it's too high?
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There are about 40 users on this server, i use rblsmtpd to filter out some spam and in some cases legit mail that we� get from outsiders sending through open relays.
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The strange part in all this is that i some times have a load average above 200, with only about 20 mails in the queue and normal pop/imap traffic, the load average�never drops no matter how long i let it sit, if I shut down qmail and restarts it the load average drops to as little as 1 - 3 with no vissible change�to the queue or the pop/imap traqffic.
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What bothers me furter is that there are alot of zombie processes and lots of defunct perl processes which i believe come from qmail-scanner, i use clam for virus scanning.
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does this seem familiar to anyone or does anyone have any tips? noting seems to be wrong when i consult the logs it just seems like a heavy load but i suspect something else is wrong... this is a p3 1000Mhz machine with about 800M RAM and I'm sure that alot less powerfull machine serve alot more traffic.
If you are getting a large amount of viruses, you might consider moving scanning to a separate server, then forward scanned messages to your main server via smtproutes. That will make your main mail server more responsive.
Regards,
Bill
