Re: [exim] exim performance delivery

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Author: Heiko Schlittermann
Date:  
To: exim-users
Subject: Re: [exim] exim performance delivery
Alexandre <infos@???> (Mo 21 Sep 2015 17:36:30 CEST):
> Thank you for your answer, this can be a solution. You know how to limit the
> number of connection per domain ?
>
> example:
>
> aaaa.com -> 5 simultaneous connections
> bbbb.com -> 2 simultaneous connections
> cccc.com -> 20 simultaneous connections


I may be wrong, but …

In normal operation an incoming messages triggers a new queue runner
working on this message, probably running several deliveries in parallel
(remote_max_parallel, this may include parallel connections to the
same destination, but see serialize_hosts).

If serialize_hosts is off and you start n queue runners, it may happen
that you get n * remote_max_parallel deliveries to the same domain.

I think in your case you need a small helper, scanning the queue and
starting as many queue runners as you want for the destination domains.
You may read about the -R command line option.

(And probably not strictly for the destination domains but for the
destination hosts.)

    Best regards from Dresden/Germany
    Viele Grüße aus Dresden
    Heiko Schlittermann
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