> -----Ursprüngliche Nachricht----- > Von: [EMAIL PROTECTED] [mailto:amavis-user- > [EMAIL PROTECTED] Im Auftrag von Christian Purnomo > Gesendet: Montag, 23. Juni 2008 08:45 > An: amavis-user@lists.sourceforge.net > Betreff: [AMaViS-user] Amavis bottleneck? > > Hi All > > We are running Postfix + amavisd-new-2.3.3-3 in our linux mail gateway. > We have been hit hard lately with SPAM and our mail queue has been > growing significantly to 10,000+ mails and it takes a few hours for the > queue to go down. We received 1.6million spam messages last month and I > believe this number is growing at around 5-10% monthly. > > We were hit with 65k spam messages between the 6 hours between 00:00am > 06:00am this morning, by the time business starts, the mail queue was > already soaring up to around 19k around 9am. I was watching the mail > queue growth, the throughput of incoming mail -> postfix -> amavis > (spamassassin only) -> postfix -> relay to internal hosts, was only 1-2 > messages per second. > > Our configuration in postfix and amavisd are as follow, the server has > 1.5G memory with SCSI disks (Raid 5) and 2 x 2.x Xeon processor - we > feel the server has a decent profile and *should* cope with the > requirement. > > We fiddled with the max proc for smtp-amavis below from 25, 50, 100 > (and > also change max_servers variable in amavisd.conf accordingly) but the > rate/second throughput hardly changed during these periods. > > Would anyone be able to share some lights on our issue? please let us > know if you require more information from our settings. > > Thanks > > CP > > > master.cf > --------- > smtp inet n - - - 100 smtpd > > smtp-amavis unix - - y - 25 lmtp > -o smtp_data_done_timeout=1200 > -o disable_dns_lookups=yes > > 127.0.0.1:10025 inet n - y - 200 smtpd > -o content_filter= > -o local_recipient_maps= > -o relay_recipient_maps= > -o smtpd_restriction_classes= > -o smtpd_client_restrictions= > -o smtpd_helo_restrictions= > -o smtpd_sender_restrictions= > -o smtpd_recipient_restrictions=permit_mynetworks,reject > -o mynetworks=127.0.0.0/8 > -o strict_rfc821_envelopes=yes > > recipient_access table > ---------------------- > .mydomain.com FILTER smtp-amavis:[127.0.0.1]:10024 > > amavisd.conf > ------------ > $max_servers = 25; # number of pre-forked children > $max_requests = 20; # retire a child after that many accepts
Increasing the number of $max_servers should increase throughput as long as enough memory is. Since you already set $max_servers = 25 I think you're system is permanently in a state of swapping. You should check memory allocation and the average time amavis needs to check a mail. Greetings Bernd ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ AMaViS-user mailing list AMaViS-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/amavis-user AMaViS-FAQ:http://www.amavis.org/amavis-faq.php3 AMaViS-HowTos:http://www.amavis.org/howto/
