Performance

[John Schmerold]

I set Children & Messages per scan low after viewing:
http://tinyurl.com/ypqot7

We've gone back to higher values now.

John Schmerold

Randal, Phil wrote:
> Max Children = 2
> Max Unscanned Messages Per Scan = 10
> Max Unsafe Messages Per Scan = 10
> 
> These seem a bit on the low side to me.
> 
> The defaults are:
> 
> Max Children = 5
> Max Unscanned Messages Per Scan = 30
> Max Unsafe Messages Per Scan = 30
> 
> Any reason why you so drastically changed them downwards?
> 
> Phil
> --
> Phil Randal
> Network Engineer
> Herefordshire Council
> Hereford, UK  
> 
>> -----Original Message-----
>> From: mailscanner-bounces at lists.mailscanner.info 
>> [mailto:mailscanner-bounces at lists.mailscanner.info] On Behalf 
>> Of John Schmerold
>> Sent: 31 January 2007 06:13
>> To: mailscanner at lists.mailscanner.info
>> Subject: Performance
>>
>> We're seeing significant backlogs, mail is taking 2-6 hours 
>> to get thru 
>> the Postfix/Mailscanner gauntlet we've setup. What's everyone else 
>> seeing in terms of mail processing time?
>>
>> I've looked at the home page & WIKI, so, I'm guessing I am missing 
>> something or there are new techniques not yet published on the 
>> mailscanner.info
>>
>> Some of my statistics are as follows:
>> Server config: 2.8GHz P4, 2GB DDR2, Maxtor SATA HDD
>> Mail volume: approx 7,500 messages per day
>> Misc: We have set the noatime flag on spool and log 
>> partitions & use a 
>> local DNS caching nameserver.
>>
>> MS Configuration:
>> [root at mx1 ~]# cat /etc/MailScanner/MailScanner.conf
>> # See http://www.mailscanner.info/MailScanner.conf.index.html for all 
>> options & defaults
>> %etc-dir% = /etc/MailScanner
>> %mcp-dir% = /etc/MailScanner/mcp
>> %org-long-name% = Schmerold
>> %org-name% = Schmerold
>> %report-dir% = /etc/MailScanner/reports/en
>> %rules-dir% = /etc/MailScanner/rules
>> %web-site% = www.schmerold.com
>>
>> Always Include SpamAssassin Report = yes
>> Archive Mail = /etc/MailScanner/rules/archive.rules
>> High Scoring Spam Actions = store
>> High SpamAssassin Score = 7
>> Incoming Queue Dir = /var/spool/postfix/hold
>> Incoming Work Dir = /var/spool/MailScanner/incoming
>> Language Strings = /etc/MailScanner/reports/en/languages.conf
>> MTA = postfix
>> Outgoing Queue Dir = /var/spool/postfix/incoming
>> Required SpamAssassin Score = 4
>> Restart Every = 7200
>> Run As Group = postfix
>> Run As User = postfix
>> Sign Clean Messages = no
>> SpamAssassin Site Rules Dir = /etc/mail/spamassassin
>>
>> Log Speed = yes
>> Max Children = 2
>> Max Unscanned Messages Per Scan = 10
>> Max Unsafe Messages Per Scan = 10
>> Spam List =
>> Virus Scanners = f-prot
>> [root at mx1 ~]#
>>
>> PostFix Configuration:
>> [root at mx1 ~]# postconf -n
>> canonical_maps = hash:/etc/postfix/canonical
>> config_directory = /etc/postfix
>> disable_vrfy_command = yes
>> hash_queue_names = ""
>> header_checks = regexp:/etc/postfix/header_checks
>> masquerade_exceptions = root
>> message_size_limit = 51200000
>> mydomain = schmerold.com
>> myhostname = mx1.schmerold.com
>> mynetworks = 127.0.0.0/8 65.16.251.208/29
>> relay_domains = katy.com katy.net katycomputer.com  schmerold.com
>> smtpd_data_restrictions = reject_unauth_pipelining, permit
>> smtpd_helo_required = yes
>> smtpd_recipient_restrictions = reject_invalid_hostname 
>> reject_non_fqdn_hostname reject_non_fqdn_sender  
>> reject_non_fqdn_recipient  reject_unknown_sender_domain 
>> permit_mynetworks reject_unauth_destination check_sender_access 
>> hash:/etc/postfix/whitelist reject_rbl_client cbl.abuseat.org 
>> reject_rbl_client zen.spamhaus.org permit
>> smtpd_sender_restrictions = hash:/etc/postfix/access
>> transport_maps = hash:/etc/postfix/transport
>> virtual_alias_domains = hash:/etc/postfix/virtual
>> virtual_alias_maps = hash:/etc/postfix/virtual
>> [root at mx1 ~]#
>>
>>
>> MS Log:
>> [root at mx1 ~]# cat /var/log/messages | grep "Jan 30 23:40"
>> Jan 30 23:40:03 mx1 MailScanner[24752]: Requeue: 4F51A4B4468.A8F46 to 
>> 389AB894965
>> Jan 30 23:40:03 mx1 MailScanner[24752]: Requeue: A8330894942.93836 to 
>> A6D8289500D
>> Jan 30 23:40:03 mx1 MailScanner[24752]: Requeue: 368088943F4.C0B33 to 
>> 20327894942
>> Jan 30 23:40:03 mx1 MailScanner[24752]: Uninfected: Delivered 
>> 7 messages
>> Jan 30 23:40:03 mx1 MailScanner[24752]: Batch completed at 
>> 128844 bytes 
>> per second (8272398 / 64)
>> Jan 30 23:40:03 mx1 MailScanner[24752]: Batch (10 messages) 
>> processed in 
>> 64.20 seconds
>> Jan 30 23:40:03 mx1 MailScanner[24752]: New Batch: Found 7981 
>> messages 
>> waiting
>> Jan 30 23:40:03 mx1 MailScanner[24752]: New Batch: Scanning 
>> 10 messages, 
>> 169939 bytes
>> Jan 30 23:40:03 mx1 MailScanner[24752]: Expired 11 records from the 
>> SpamAssassin cache
>> Jan 30 23:40:04 mx1 named[2116]: lame server resolving 
>> 'mail.voltech-auto.com' (in 'voltech-auto.com'?): 216.53.199.57#53
>> Jan 30 23:40:08 mx1 named[2116]: lame server resolving 
>> '21.36.70.194.in-addr.arpa' (in '36.70.194.in-addr.arpa'?): 
>> 194.70.36.12#53
>> Jan 30 23:40:42 mx1 MailScanner[24762]: Spam Checks: Found 5 
>> spam messages
>> Jan 30 23:40:42 mx1 MailScanner[24762]: Spam Checks completed at 1227 
>> bytes per second
>> Jan 30 23:40:42 mx1 MailScanner[24762]: Virus and Content 
>> Scanning: Starting
>> Jan 30 23:40:43 mx1 MailScanner[24762]: Virus Scanning completed at 
>> 156861 bytes per second
>> Jan 30 23:40:43 mx1 MailScanner[24762]: Found phishing fraud from 
>> www.google.com claiming to be www.chase.com in 6BE8F895371.5D53A
>> Jan 30 23:40:43 mx1 MailScanner[24762]: Content Checks: Detected and 
>> have disarmed web bug tags in HTML message in 6BE8F895371.5D53A from 
>> www-data at balancetechnology.com
>> Jan 30 23:40:43 mx1 MailScanner[24762]: Requeue: 3B29B894E55.CEBEA to 
>> 6535E894D8C
>> Jan 30 23:40:43 mx1 MailScanner[24762]: Requeue: 6BE8F895371.5D53A to 
>> DB04E894E55
>> Jan 30 23:40:43 mx1 MailScanner[24762]: Requeue: 73748895A57.5ABB7 to 
>> 0597D895371
>> Jan 30 23:40:43 mx1 MailScanner[24762]: Requeue: 937E689448D.77EDA to 
>> 0CB4B8953AD
>> Jan 30 23:40:43 mx1 MailScanner[24762]: Requeue: 754F789466A.8DA78 to 
>> AC1D989448D
>> Jan 30 23:40:43 mx1 MailScanner[24762]: Requeue: D5177894E67.3DEEA to 
>> A879089466A
>> Jan 30 23:40:43 mx1 MailScanner[24762]: Requeue: A3E798940E3.B4BEB to 
>> 80A7B894E67
>> Jan 30 23:40:43 mx1 MailScanner[24762]: Uninfected: Delivered 
>> 7 messages
>> Jan 30 23:40:43 mx1 MailScanner[24762]: Virus Processing completed at 
>> 650569 bytes per second
>> Jan 30 23:40:43 mx1 MailScanner[24762]: Batch completed at 1215 bytes 
>> per second (86123 / 70)
>> Jan 30 23:40:43 mx1 MailScanner[24762]: Batch (10 messages) 
>> processed in 
>> 70.85 seconds
>> Jan 30 23:40:43 mx1 MailScanner[24762]: New Batch: Found 7993 
>> messages 
>> waiting
>> Jan 30 23:40:43 mx1 MailScanner[24762]: New Batch: Scanning 
>> 10 messages, 
>> 160591 bytes
>> [root at mx1 ~]#
>>