Ed, > I am a bit concerned about the performance of amavisd. > The server will be lightly loaded and then I'll get a number of these > deferrals. When there is a lot of traffic this can grow to several hundred. > Also the amavis scanning is taking its sweet time. > I have 2 front-end MX servers and 2-Outbound smtp servers. These servers > are the content scanning servers. I originally had 2 but at peak hours they > would run far behind. I have since then added 2 more servers for a total of > 4. Mail traffic is about 150,452 per day averaging 6,200 per hour. Peaks > are around 10,000 an hour. Average message size is 32K. During peak hours > the average message size will be between 45K and 50K. Below are relevant > postfix settings. I currently have bayes and auto white listing turned off. > No extra rules other than the ones that come with the install. One of the > servers I'm running 20 max servers, One of the other I'm running 7 max > servers. Not much difference in problems with either server.
See diagrams and figures in: http://www.ijs.si/software/amavisd/amavisd-new-magdeburg-20050519.pdf which may induce some ideas. You may also want to collect timing breakdown (at log level 2) and make a report out of it. Averages are quote meaningless with non-symmetrical distributions, look for median and say 10 and 90% quantiles. Btw, you may want to add 'no_header_body_checks' to -o receive_override_options=no_unknown_recipient_checks on smtpd at port 10025. > What causes these refusal messages? Like Noel said, looks like amavisd was restarted at 14h. Mark ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=103432&bid=230486&dat=121642 _______________________________________________ AMaViS-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/amavis-user AMaViS-FAQ:http://www.amavis.org/amavis-faq.php3 AMaViS-HowTos:http://www.amavis.org/howto/
