Increased load

Rabie Van der Merwe rvdmerwe at mhg.co.za
Tue Dec 9 07:52:14 GMT 2008


I did apply the updated Message.pm file I am however still seeing the
increased load on the server compared to versions 4.69.9-3 and prior.

My 2 servers run at around lavg of 0.8, since first updating the one
server then the other (can correlate this on my load graphs) the load
now is around 1.5-2.

Unfortunatly I didn't have the MailScanner performance logging enabled
previously so I can't compare the internal runtimes to then.

I am running 12 children on a 4 way box with 4096Mb ram with incoming
area in tmpfs on CentOS 5.2 x86_64. Looking at my graphs I can see an
increase in my CPU User time, CPU System time increased slightly but
IOWait seem relatively the same. I am also running ClamAV module 0.22
with ClamAV 0.94.

I could revert to an older build of MailScanner to test, but there is a
compatibility issue with CLamAv? Or will ClamAV module handle that?

Let me know if there is anything else I can provide.

Regards
Rabie



-----Original Message-----
From: mailscanner-bounces at lists.mailscanner.info
[mailto:mailscanner-bounces at lists.mailscanner.info] On Behalf Of Rabie
Van der Merwe
Sent: 26 November 2008 13:18 PM
To: MailScanner discussion
Subject: RE: Increased load


I recently joined the mailing list, could someone repost the file or let
me know what the subject of the message was as I cant search the through
the mailing list.

Regards
Rabie

PS BAD CPU!! Down, down boy, staaay ! :) 

-----Original Message-----
From: mailscanner-bounces at lists.mailscanner.info
[mailto:mailscanner-bounces at lists.mailscanner.info] On Behalf Of Glenn
Steen
Sent: 26 November 2008 10:54 AM
To: MailScanner discussion
Subject: Re: Increased load

2008/11/26 Rabie Van der Merwe <rvdmerwe at mhg.co.za>:
>
> Yip CPU utilization is defiantly up.
>
Well, you need be strict with it then.... Tell it to be less
defiant!!!:-):-):-)... (as if that would help:-)

Seriously though, if you are using 4.72.5 you might need the latest
Message.pm fix that Jules posted, or else you would see the children
start to loop on some specific messages... Notably, the busy
MailScanner child will report "cleaning messages" as commandline in
"ps"... and never leave that state.
Solutions would be:
- get a hold of the fixed Message.pm and drop that into place (restart
MS after that), or
- revert to 4.71, or
- wait for Jules to post a new release with the fix incorporated
(there just might be a new beta around the corner:-).

Cheers
-- 
-- Glenn

> -----Original Message-----
> From: mailscanner-bounces at lists.mailscanner.info
> [mailto:mailscanner-bounces at lists.mailscanner.info] On Behalf Of Hugo
> van der Kooij
> Sent: 26 November 2008 00:27 AM
> To: MailScanner discussion
> Subject: Re: Increased load
>
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Rabie Van der Merwe wrote:
>>
>> Can anyone think of a reason why moving from 4.69.9-3 to any of the
>> later versions would increase the load on the server? I have 2
servers
>> running MailScanner and my avg load went from 2 to 4 since the
upgrade
>> on both boxes.
>
> Well load in itself should not be an issue. Is the average CPU usage
> significantly higher? (Use vmstat to find out.)
>
> Hugo.
>
> - --
> hvdkooij at vanderkooij.org               http://hugo.vanderkooij.org/
> PGP/GPG? Use: http://hugo.vanderkooij.org/0x58F19981.asc
>
>        A: Yes.
>        >Q: Are you sure?
>        >>A: Because it reverses the logical flow of conversation.
>        >>>Q: Why is top posting frowned upon?
>
> Bored? Click on http://spamornot.org/ and rate those images.
>
> Nid wyf yn y swyddfa ar hyn o bryd. Anfonwch unrhyw waith i'w
gyfieithu.
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> coBDbgd/x0Mz6BfLVCn1OhE=
> =IcK/
> -----END PGP SIGNATURE-----
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-- 
-- Glenn
email: glenn < dot > steen < at > gmail < dot > com
work: glenn < dot > steen < at > ap1 < dot > se
-- 
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Before posting, read http://wiki.mailscanner.info/posting

Support MailScanner development - buy the book off the website! 

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Before posting, read http://wiki.mailscanner.info/posting

Support MailScanner development - buy the book off the website! 

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