Also see the paragraph "When to use and not use Conduit subscriptions" on http://activemq.apache.org/networks-of-brokers.html
On Mar 15, 2012, at 10:02 AM, Torsten Mielke wrote: > > On Mar 15, 2012, at 1:30 AM, pollotek wrote: > >> Thank you both for the quick responses, they were very useful and quick. >> >> I just have one more detail to ask about. In the case where broker1 has no >> consumers and broker2 has consumers, the messages are forwarded >> automatically to broker2. If one consumer gets attached to broker1 the >> messages get dispatched to broker2 and the one local consumer on round-robin >> fashion by default. >> >> Is round-robin considering dispatch 1 message (or batch) to each consumer >> attached to broker1 and then 1 message to broker2? or messages would be >> dispatched considering the same weight for all consumers no matter what >> broker they're on? Meaning if there are 2 consumers on broker2 and 1 in >> broker1 and broker1 gets 12 messages, 8 messages would end up going to >> broker2 and 3 to the one consumer on broker1? > > By default brokers in a network use conduit subscriptions. So all consumers > on broker2 are represented by one subscription on broker1. Hence when it > comes to dispatching msgs from broker1, all consumers on broker2 count as > only one consumer on broker1 (as only one subscription from broker2 to > broker1 is established). However you can configure this behavior using the > conduitSubscriptions property on your network connector configuration. > See http://activemq.apache.org/networks-of-brokers.html for more information. > > If you have one consumer connected to broker1 and 3 consumers to broker2, > then broker1 will dispatch first message to its local consumer, second msg to > remote broker2 (which dispatches it to its own consumers in a round robin > fashion), third msg to local consumer on broker1, fourth msg to broker2, etc. > > > Torsten Mielke > tors...@fusesource.com > tmie...@blogspot.com > > > Torsten Mielke tors...@fusesource.com tmie...@blogspot.com
