tuning

[Dhawal Doshy]

Martin Hepworth wrote:
> Hi
> 
> Well somethings obviously going very slow....
> 
> 1. First thing to check is DNS. Have you got a local caching name server on
> your machine.
> 
> 2. In /etc/mail/spamassassin/*.pre what plugins are enabled?
> 
> 3. Are you running ALL the RBLS in spamassassin. I find this really slows
> down the system esp if 1. isn't enabled. Turn the ones off you don't want by
> giving them a zero score in /etc/mail/spamassassin/mailscanner.cf.
> 
> 
> Load average on its own doesn't mean much (just means x processes actually
> waiting for CPU/disk/network), but if your hold queue is building then yes
> it's a problem..

Also consider using the SpamAssassin Cache settings in MS.conf and also 
setup a small 100MB TMPFS partition (to keep mailscanner's work dir and 
SA cache)

But like Martin said.. have a decent caching nameserver installed on the 
box and check the perl Net::DNS module for correctness.

- dhawal

> --
> Martin Hepworth 
> Snr Systems Administrator
> Solid State Logic
> Tel: +44 (0)1865 842300
> 
>> -----Original Message-----
>> From: mailscanner-bounces at lists.mailscanner.info [mailto:mailscanner-
>> bounces at lists.mailscanner.info] On Behalf Of glaucius junior
>> Sent: 04 July 2006 22:29
>> To: MailScanner discussion
>> Subject: tuning
>>
>> Hi everyone,  I'm using MailScanner (4.54.6-1), Postfix (2.2.8),
>> FreeBSD (5.4) and SpamAssassin (3.1.3), now everything is working
>> fine, but when I set "Use SpamAssassin = yes", my FreeBSD goes to a
>> load average very high (15/30) and my queue becomes very high (the
>> folder hold), and if I turn off the spamassassin, every goes to heaven
>> again.
>>
>> This is the volume for today :
>> Processed:	38,269	2.6Gb
>> Clean:	37,757	98.7%
>> Viruses:	0	0.0%
>> Top Virus:	None
>> Blocked files:	38	0.1%
>> Others:	136	0.4%
>> Spam:	177	0.5%
>> High Scoring Spam:	161	0.4%
>> MCP:	0	0.0%
>> High Scoring MCP:	0	0.0%
>>
>>
>> My  hardware is
>>
>> HP DL140
>> Intel(R) Xeon(TM) CPU 3.06GHz
>> 2G Ram Memory
>> IDE 70G
>>
>>
>> Maybe I need another machine to do load-balance of my MTA, or maybe I
>> can do some tuning in SpamAssassin and MailScanner to get a bether
>> performance.
>>
>>
>> Best regards !!!
>> --
>> MailScanner mailing list
>> mailscanner at lists.mailscanner.info
>> http://lists.mailscanner.info/mailman/listinfo/mailscanner
>>
>> Before posting, read http://wiki.mailscanner.info/posting
>>
>> Support MailScanner development - buy the book off the website!
> 
> 
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