Hi Erwin-

Have you considered a purely static network configuration?

-Matt Pavlovich

> On May 20, 2021, at 11:12 AM, Dondorp, Erwin <erwin.dond...@cgi.com> wrote:
> 
> Hello!
> 
> We are using ActiveMQ in a star-network of a few hundred remote brokers on 
> small computers with a more beefy central broker(set).
> Functionally, this works fine.
> Unfortunately, the network is not always stable (but this is exactly why we 
> use a messaging solution).
> On network problems that affect most-or-all remote brokers, upon 
> reconnection, a very large amount of advisory messages are sent between the 
> nodes.
> The amount of messages seems to be quadratic with the number of brokers.
> And the number of advisory message types is high because we use unique 
> destinations per remote broker, so the amount is actually cubic.
> We see millions of these messages on such occasions.
> 
> Obviously, we are trying to reduce this, and looked at 
> https://activemq.apache.org/advisory-message and 
> https://activemq.apache.org/networks-of-brokers.
> But no obvious solution was in sight.
> 
> The question:
> Most of the advisory messages are useless; they are about destinations that a 
> broker does not have any consumers or producers for, but still these are 
> subscribed to.
> Is there a way to reduce the subscriptions on advisory topics to only the 
> interesting ones?
> 
> thx,
> Erwin

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