MailScanner slow on my RaQ550 when I access Site or Server Admininstration via Browser...

[Ugo Bellavance]

> -----Message d'origine-----
> De : usergroups [mailto:usergroups at THEARGONCOMPANY.COM]
> Envoyé : Wednesday, December 24, 2003 10:42 AM
> À : MAILSCANNER at JISCMAIL.AC.UK
> Objet : MailScanner slow on my RaQ550 when I access Site or Server
> Admininstration via Browser...
> 
> 
> Hi
> 
> I am currently running the following software versions on my 
> Cobalt RaQ550
> - mailscanner-4.14-9
> - ClamAV version 0.60
> - SpamAssassin version 2.55
> - sendmail-8.11.6-1C7stackguard
> 
> Hardware Configuration
> model name      : Pentium III (Coppermine)
> cpu MHz         : 997.194
> cache size      : 256 KB
> RAM: 256 MB
> 
> As long as I don't access the Cobalt Admin GUI, my server 
> works just fine...
> However, the moment I try to login and add/remove users or 
> sites........
> BANG... my load average just shoots up to 6-10 and sometimes 
> more.. And
> ofcouse the GUI takes forever to display list of users and sites....
> 
> However, if I just kill sendmail and MailScanner (killall -9 
> sendmail ;
> killall -9 MailScanner), the GUI loads up immediately and the 
> load average
> drops below 2 and I can work normally. The moment I'm done 
> with adding and
> removing users or sites, I restart MailScanner/Sendmail and I'm fine.
> 
> Any ideas how to fine tune MailScanner so that the load 
> average does not
> shoot up when accessing the Cobalt RaQ GUI?

I think you'll need to determine what is the bottleneck.  Can you run top while loading the GUI? Is the CPU usage going up to 100%, if so, what is the process responsible for that?  If not, do you see the swap usage going up a lot?  Can you run vmstat 5 while loading the GUI?

I think you might begin swapping when loading the GUI, 
> 
> Regards
> 
> Rishi
>