Re: [courier-users] Timeouts while filtering

Sam Varshavchik wrote:
> Papo Napolitano writes:
>
>> I'm observing a rather extrange behaviour (or maybe a configuration
>> error) in the latest courier (0.52.2) build.
>>
>> I'm filtering using maildrop and a custom perl filter which right now
>> it's taking a lot more than 5 minutes (the default watchdog), so I put
>> "30m" in my localtimeout file as man courier says:
>>
>>
>> localtimeout
>> This file specifies the watchdog timer for local mail
>> deliveries. If a local mail delivery attempt does not complete in the
>> proscribed time interval, the delivering process ID is killed. The time
>> interval in localtimeout is specified in the same way as queuetime (see
>> queuetime for more information).
>>
>>
>> Well, this isn't happening, as I see this on the logs:
>>
>>
>> Jan 17 13:14:41 localhost courierd: started,
>> id=006B85BB.43CC1C7B.00007CCA, from=<test@dosalcubo.com>, module=local,
>> host=test@dosalcubo.com!!8!12!/home/mail/dosalcubo.com/test!!,
>> addr=<test@dosalcubo.com>
>> Jan 17 13:19:41 localhost courierlocal: id=006B85BB.43CC1C7B.00007CCA,
>> from=<test@dosalcubo.com>, addr=<test@dosalcubo.com>: maildrop: Timeout
>> quota exceeded.
>
>
> localtimeout is Courier's local mail delivery timeout.
>
> You are running maildrop as part of local mail delivery, and maildrop
> has its own 5 minute, fixed timeout.
>
> Mail should not take more than five minutes to get delivered. If it's
> taking longer than that, something is broken.
>
> The number of local mail delivery slots is limited. A broken local mail
> delivery script will quickly use up all available delivery slots and
> block delivery of mail to other mailboxes. This is unacceptable.
>
> You're trying to fix the symptom, instead of the underlying disease.
> Fix the disease instead.
>

Indeed!

A closer look at the filter revealed that the as_string method of
Mail::Internet was taking ages.
I changed the script a little and the problem is fixed, delivery is
working again.
Damn perl modules.

Thanks.-


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