Troubleshooting slow processing

[Lewis Bergman]

    [ The following text is in the "ISO-8859-1" character set. ]
    [ Your display is set for the "US-ASCII" character set.  ]
    [ Some characters may be displayed incorrectly. ]

Max Kipness wrote:
> As of yesterday, processing through MailScanner has slowed to a crawl.
> Nothing to my knowledge has changed on the MailScanner server in any way.
> 
> Basically it appears like MailScanner is processing fine, but then not
> handing off the messages to Sendmail. There are hundreds of messages in
> the Sendmail inbound queue (mqueue.in) sits at about 700 - 800 messages,
> then the MailScanner will fill to 90 and sit there for the longest time,
> then it will fill to about 120 and dump some messages to the sendmail
> outbound queue (mqueue). Other than that the Sendmail outbound queue just
> sits at zero for long periods.
> 
> I created a realtime app that tracks the message queue, and here is a
> snapshot of what it basically has looked liked for hours:
> 
> Mail Queues (In order Processed)
> -------------------------------
> Sendmail Inbound Queue          731
> MailScanner Inbound Queue:      90
> Sendmail Outbound Queue:        0
> 
> CPU Load: 74
> 
> 3 Second interval
We had a problem like this a while back. It ended up to be related to 
some malformed spam the mail server received after we stopped spam 
scanning on the old mail server and moved that function to new MX 
servers. I can't remember excatly what was wrong except that all the 
messages with the issue were several days older than all the legit 
email. I used find and execed to rm to remove the old files and useage 
dropped to below 1% and mail started processing normally. Sorry I can't 
remember any more details.

-- 
Lewis Bergman
Texas Communications
4309 Maple St.
Abilene, TX 79602-8044
Off. 325-691-1301
Cell 325-439-0533
fax  325-695-6841

------------------------ MailScanner list ------------------------
To unsubscribe, email jiscmail at jiscmail.ac.uk with the words:
'leave mailscanner' in the body of the email.
Before posting, read the Wiki (http://wiki.mailscanner.info/) and
the archives (http://www.jiscmail.ac.uk/lists/mailscanner.html).

Support MailScanner development - buy the book off the website!