Queue problem

[Julian Field]

In which case your DNS lookups should be okay. That's a perfectly 
reasonable figure in my experience.

Run "MailScanner --debug --debug-sa". It will produce loads of output. 
However, at some point in the SpamAssassin output, it will pause for a 
second or two. You want to catch it there, then resume it and then 
immediately stop it again, as the bits you are interested in are the 
lines of output printed out immediately *after* the pause.

This can take a few goes to catch, though someone did post a nice 
command the other day to prepend each line of output with the current 
time, so you could see easily when (and how long) the pauses were. Can 
someone repost that please? If I can find it, I'll work out how to build 
it into the MailScanner debug output directly. It will help diagnose 
this sort of problem a lot.

This output should tell you where the pauses are, and therefore what 
operations are taking too long.

Maxime Gaudreault wrote:
> Hi Jule
>
> Dig results comes within 41-108 msec
>
> Maxime Gaudreault
> Technicien
>                                                   
> Référence Systèmes inc.
> Tél. : 418.650.0997
> Téléc. : 418.650.9668
> Courriel : mgaudreault at reference.qc.ca
> Site Internet : http://www.reference.qc.ca/
>
>
>
> -----Original Message-----
> From: mailscanner-bounces at lists.mailscanner.info [mailto:mailscanner-bounces at lists.mailscanner.info] On Behalf Of Julian Field
> Sent: February 29, 2008 5:50 PM
> To: MailScanner discussion
> Subject: Re: Queue problem
>
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
>
>
> Maxime Gaudreault wrote:
>   
>> Hi
>>
>> The hold queue is actually at 415 emails
>>
>> Load Average: 0.11 0.25 0.53
>>
>> htop show many of these process:
>>
>> MailScanner: checking with SpamAssassin
>>
>> MailScanner: checking with Spam Lists
>>
>> CPU is 3%
>>
>> Mem is 25%
>>
>>     
> I would start checking your DNS setup. How long does it take for various 
> random "dig" commands to produce results? MailScanner should spend a 
> very small %-age of its time saying "checking with Spam Lists". If you 
> can see several of them in that state, then that's likely a DNS lookup 
> problem.
>
>   
>> I don't understand
>>
>> *Maxime Gaudreault*
>>
>> Technicien
>>
>> _ _
>>
>> Référence Systèmes inc.
>>
>> Tél. : 418.650.0997
>>
>> Téléc. : 418.650.9668
>>
>> Courriel : _mgaudreault_ at reference.qc.ca 
>> <mailto:mgaudreault at reference.qc.ca>
>>
>> Site Internet : http://www.reference.qc.ca/
>>
>> *From:* mailscanner-bounces at lists.mailscanner.info 
>> [mailto:mailscanner-bounces at lists.mailscanner.info] *On Behalf Of 
>> *Maxime Gaudreault
>> *Sent:* February 29, 2008 10:54 AM
>> *To:* MailScanner discussion
>> *Subject:* Queue problem
>>
>> Hi
>>
>> I have a problem with my anti-spam gateway. The queue is fulling up 
>> very quickly (1600+ mails in queue).
>>
>> The server's load average is <1 (0.60 - 0.80) so I suppose this is not 
>> a ressource problem.
>>
>> Then I have to change the port forwarding directly to my Imail server 
>> to let the anti-spam's queue going down.
>>
>> I used many tweak to maximize the efficacity of the anti-spam 
>> (mailscanner work directory in ram, dns cache server, increasing 
>> memory). I only got 1 CPU but I suppose this is not the problem 
>> because when the queue is full, the load average is under 1.
>>
>> Any idea ?
>>
>> PS: Sorry for my bad english
>>
>> PPS: Sorry if you received my message twice
>>
>> *Maxime Gaudreault*
>>
>> Technicien
>>
>> _ _
>>
>> Référence Systèmes inc.
>>
>> Tél. : 418.650.0997
>>
>> Téléc. : 418.650.9668
>>
>> Courriel : _mgaudreault_ at reference.qc.ca 
>> <mailto:mgaudreault at reference.qc.ca>
>>
>> Site Internet : http://www.reference.qc.ca/
>>
>>     
>
> Jules
>
> - -- 
> Julian Field MEng CITP CEng
> www.MailScanner.info
> Buy the MailScanner book at www.MailScanner.info/store
>
> MailScanner customisation, or any advanced system administration help?
> Contact me at Jules at Jules.FM
>
> PGP footprint: EE81 D763 3DB0 0BFD E1DC 7222 11F6 5947 1415 B654
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>   

Jules

-- 
Julian Field MEng CITP CEng
www.MailScanner.info
Buy the MailScanner book at www.MailScanner.info/store

MailScanner customisation, or any advanced system administration help?
Contact me at Jules at Jules.FM

PGP footprint: EE81 D763 3DB0 0BFD E1DC 7222 11F6 5947 1415 B654
PGP public key: http://www.jules.fm/julesfm.asc


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