Re: Hub and spoke network topology

2015-10-30 Thread Tim Bain
That depends what you mean by "trace". If you mean "get counts per destination at a point in time, so you can subtract the values at two times to find the number of messages in that time period", you can use the web console or JMX to get that information. If you mean something else, please explai

Re: Hub and spoke network topology

2015-10-30 Thread Jako
Is there a way to trace all messages passing through a broker? In that way I could verify what load the server is under. >Statically including all destinations will send messages for all >destinations to the central broker when all consumers are offline, even if >the consumers will only ever be

Re: Hub and spoke network topology

2015-10-30 Thread Tim Bain
Do you have any evidence that advisory messages about hundreds of empty queues actually has a measurable impact on either your central broker or your edge brokers? It's definitely possible that the overhead of advisory messages really is too high, but if you haven't measured it somehow and you're

Re: Hub and spoke network topology

2015-10-29 Thread Jako
Hi Tim, thank you for your replay and your very thoughtful questions. >But are you sure you need to? Are you sure this isn't a premature [...] I think so. The central broker is on our server farm and it is very resourceful machine; anyway it often uses a lot of cpu. The broker uses thousands of

Re: Hub and spoke network topology

2015-10-28 Thread Tim Bain
If you know in advance which destinations are local-only and which ones might need to be routed across the network of brokers, it's possible to dynamically include or exclude destinations whose names match certain patterns. See activemq.apache.org/networks-of-brokers.html for more details. You ca