Has anyone seen when the load on a MailScanner server

[Richard Mealing]

Hi Jerry,

When it happens, try deleting the Processing.db and tail the logs. You don’t even need to restart mailscanner. See if that fixes the problem.
I’m curious to see your results..

Thanks,
Rich

From: mailscanner-bounces at lists.mailscanner.info [mailto:mailscanner-bounces at lists.mailscanner.info] On Behalf Of Jerry Benton
Sent: 28 May 2014 14:39
To: MailScanner discussion
Subject: Re: Has anyone seen when the load on a MailScanner server

See ... my wife was right. I am wrong all the time.
On the same note, I am seeing similar behavior on a lab server I just built testing out Ubuntu 14.04. I will email results when (if) I have them.

On Wed, May 28, 2014 at 2:22 PM, Richard Mealing <richard at fastnet.co.uk<mailto:richard at fastnet.co.uk>> wrote:
I’m not sure that is correct, but I may be wrong too!

# If more messages are found in the queue than this, then switch to an
# "accelerated" mode of processing messages. This will cause it to stop
# scanning messages in strict date order, but in the order it finds them
# in the queue. If your queue is bigger than this size a lot of the time,
# then some messages could be greatly delayed. So treat this option as
# "in emergency only".
Max Normal Queue Size = 2000

So it just stops in the date order and goes for what is top of the queue. I set mine to 2000 but it never reaches that now I have made all my changes.

You should look into tmpfs, it has brought down the load on my servers considerably. I use it for a few things now –

Incoming Work Dir = /tmpfs
SpamAssassin Cache Database File = /tmpfs/SpamAssassin.cache.db
SpamAssassin Temporary Dir = /tmpfs

Maybe run some gstat commands and check your disks are behaving. If not, then implement tmpfs.

Thanks!
Rich

From: mailscanner-bounces at lists.mailscanner.info<mailto:mailscanner-bounces at lists.mailscanner.info> [mailto:mailscanner-bounces at lists.mailscanner.info<mailto:mailscanner-bounces at lists.mailscanner.info>] On Behalf Of Jerry Benton
Sent: 28 May 2014 08:47
To: MailScanner discussion
Subject: Re: Has anyone seen when the load on a MailScanner server

What is happening is your queue is exceeding the threshold set (800 by default I think) where MailScanner just starts to process the email without scanning it. If your server is getting hit by a surge of email and MailScanner cannot keep up, it stops doing checks.
Of course, I could be wrong. Happens a lot.

On Wed, May 28, 2014 at 8:57 AM, Joolee <mailscanner at joolee.nl<mailto:mailscanner at joolee.nl>> wrote:
You probably hit a timeout somewhere. Can you find out from the logs which component times out?

On 28 May 2014 03:37, Philip Parsons <pparsons at techeez.com<mailto:pparsons at techeez.com>> wrote:
Gets too high like 5 or 6 that MailScanner marks all messages as spam ? If you have seen this is there something we can change that changes the process ?

Thank you
P Parsons
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Mailborder Systems
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