[rabbitmq-discuss] Use case for durable exchange?

[Jim Irrer]

Ok... so a consumer application might set up one or more durable queues, and
also a durable exchange that routes messages to those queues.  A producer
can be "dumb", and simply send a message to that exchange, and be ignorant
of who receives it.

That makes sense.

Thanks,

- Jim

Jim Irrer     irrer at umich.edu       (734) 647-4409
University of Michigan Hospital Radiation Oncology
519 W. William St.             Ann Arbor, MI 48103


On Wed, Aug 12, 2009 at 12:03 PM, Alexis Richardson <
alexis.richardson at gmail.com> wrote:

> Jim,
>
> Exchanges contain routing information which you may not want to lose
> in a crash.  Queues contain messages, for eventual delivery.
> Persistent messages plus durable queues gives you eventual delivery
> even if the queue crashes.  But you also want durable exchanges if you
> plan to send more messages down the same path even after a crash.
>
> Does this help?
>
> alexis
>
>
> On Wed, Aug 12, 2009 at 4:59 PM, Jim Irrer<irrer at umich.edu> wrote:
> > I am creating a strategy for using AMQP in our organization
> > and am trying to understand the technology.  One thing that
> > confuses me is the idea of making a durable exchange.  Durable
> > queues make sense, but is there a real world scenario that
> > benefits from a durable exchange?
> >
> > Thanks,
> >
> > - Jim
> >
> > Jim Irrer     irrer at umich.edu       (734) 647-4409
> > University of Michigan Hospital Radiation Oncology
> > 519 W. William St.             Ann Arbor, MI 48103
> >
> > _______________________________________________
> > rabbitmq-discuss mailing list
> > rabbitmq-discuss at lists.rabbitmq.com
> > http://lists.rabbitmq.com/cgi-bin/mailman/listinfo/rabbitmq-discuss
> >
> >
>
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