Re: [Exim] pipes and system load

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Author: Philip Hazel
Date:  
To: Marc Haber
CC: exim-users
Subject: Re: [Exim] pipes and system load
On Sun, 11 Jul 1999, Marc Haber wrote:

> Can I selectively queue mail addressed to mh-lists while delivering
> other mail at once?
>
> Can I queue mail that is destined to a pipe while doing normal
> deliveries at once?


There is no current way of doing either of those.

> Can I have a queue runner process mail selectively (for example: "You,
> new queue runner, are only to process remote mail, while you, queue
> runner number two, are only to process local mail)?


The -R option is something like this, but if a message has both remote
and local addresses, all of them get used when a delivery process runs.

> Would "pipe 'nice mail2news...'" also cause the inews and posting
> processes to run niced, stopping exim from wrecking my system?


No idea.

> BTW, I really feel that exim should have an option to stop certain
> actions (like pipes) if system load is getting too high. I know that
> there are some options to do so, but I did not find an option to stop
> pipes if load is getting too high.


The only option is to stop *all* deliveries. I am not sure whether
stopping particular kinds of delivery is especially beneficial. What do
other people think? I suppose a generic transport option could be added
to defer any particular transport at high load.


-- 
Philip Hazel            University of Cambridge Computing Service,
ph10@???      Cambridge, England. Phone: +44 1223 334714.