Question
Ken A
ka at pacific.net
Tue Sep 5 19:54:14 IST 2006
Rob Poe wrote:
>> I have a client with an older linux box running MailScanner and it's just being crushed ... with spam....
>>
>> It's a Celeron 2.0 ghz / 512mb ram / dual IDE disk
>>
>> 10:55:02 up 19:05, 1 user, load average: 6.23, 4.56, 4.04
>
>> Seeing things like this: Sep 5 10:56:12 mail MailScanner[25809]: Batch processed in 61.70 seconds
>>
>> I've tried 5, 3 and now 2 MS children.
>>
>
>> What does 'free' report? Using swap? Increase MS children up to 4 or 5
>> until they start using swap, or add ram if they are already swapping.
>
> total used free shared buffers cached
> Mem: 479644 447512 32132 0 93536 161792
> -/+ buffers/cache: 192184 287460
> Swap: 2112440 4356 2108084
Looks like you are pushing it already at 2 children. More memory would
help. You should be able to run 4 MS processes with a GB of ram.
What about the network tests in SA? Are they running slowly? Are you
getting SA timeouts too? You could run 'spamassassin -D dns < /dev/null'
to get the list of rbls that SA is using and test them individually to
see if one of them is timing out? It would be nice if there was a script
for diagnosing MailScanner slowness. There are a lot of things that can
cause it, but most are pretty obvious - AFTER you find them. :-)
Ken A.
Pacific.Net
> FEATURE(`dnsbl', `list.dsbl.org', `Rejected - see http://www.dsbl.org/')dnl
> FEATURE(`dnsbl', `relays.ordb.org', `Rejected - see http://ordb.org/')dnl
>
> They had problems with the xbl.spamhaus.org and sbl.spamhaus.org because their biggest client / vendor is on a shared server that has sent spam (and is listed). So it blocks their clients / vendor's email.....
>
>
>
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