Yes we already thought of that as a fallback plan.
I guess we will go for this approach.
Thanks Gordon for your time.

Olivier

-----Original Message-----
From: Gordon Sim <[email protected]>
Sent: mercredi 14 novembre 2018 13:15
To: [email protected]
Subject: Re: [Dispatch Router] multicast distribution

On 14/11/18 11:59, VERMEULEN Olivier wrote:
> No if the subscriber is still down the message should also be resent.
> So you're right it's not simply the active subscribers, it would be all the 
> subscribers that were connected to the dispatch-router at some point and that 
> were not explicitly closed.
> Actually it's not even limited to the dispatch-router that received the 
> message, we should also consider all the dispatch-routers inter-connected 
> with it.

I think explicit management of the subscriptions might be a better way to 
approach the problem. For each subscriber, set up a unique subscription queue 
on each broker of relevance, and have a link from the broker sending messages 
out through an anycast address on the router network that matches the 
subscription identifier. Then the subscribe can simply attach a receiver on 
that identifier to the router network and that will trigger the flow of 
messages from all queues which can then be acknowledged end-to-end.

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