Scan timeout value for amavis running clamav
anirudha0012 at gmail.com
Wed Feb 22 13:22:58 CET 2012
---------- Forwarded message ----------
From: Mark Martinec <Mark.Martinec+amavis at ijs.si>
To: amavis-users at amavis.org
Date: Tue, 21 Feb 2012 14:25:27 +0100
Subject: Re: Scan timeout value for amavis running clamav
> I have Postfix 2.5.5 running with Amavis [amavisd-new-2.6.4 (20090625)]
> integrated with ClamAV 0.96.1
> I need to know if there is any default *Scan Timeout* or *Timeout *for
> amavis process. I can see the below limit options in amavisd.conf but no
> options for how long will amavis process would scan a given email before
> timing out if any
> Is there any child_timeout value associated with amavis, if yes, what is
> and if it has any default value ?
> Please find my sample amavid.conf file.
>There is a $child_timeout setting, with a default value of 8*60 seconds,
i.e. 8 minutes. It limits the total time for one mail message processing
spent in amavisd. The sublimits (virus, spam, ... scans) are derived
dynamically from $child_timeout and actual times spent so far.
*So does this means, a particular email would be devoted a total time of 8
mins by amavis or would it be more?*
>With your version 2.6.4 the time limits are rather coarse.
>The situation in this respect is significantly improved with 2.7.0 :
>- improved support for pre-queue content filtering setups: reorganized time
> limiting on processing to obey more strictly a deadline time, which is the
> sum of $child_timeout and a timestamp at the moment of a reception of a
> complete message (SMTP data-end time). The deadline time is also passed
> to SpamAssassin, which since version 3.3.0 supports a 'master_deadline'
> option and can gracefully terminate its processing on a time limit, while
> still providing results collected so far.
> The setting $sa_timeout is now retired: the variable is still declared
> for backward compatibility, but has no effect. Instead, the time
> for spam scanning is automatically determined from $child_timeout, taking
> into consideration the actual time left till the deadline;
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