James - great thanks for your replies, they were very helpful.
James Casey-2 wrote: > > use suppressDuplicateQueueSubscriptions="true" on the network connectors I > normally only see one additional consumer - what is your topology ? > Thanks, I'm definitely gonna try this out. We have a fully-connected topology, i.e every broker is connected to every other. James Casey-2 wrote: > > Could it be this : <https://issues.apache.org/activemq/browse/AMQ-2586> ? > Yes, perhaps it's just the statistic that is off. Makes more sense now. Thank you. James Casey-2 wrote: > >> When I try to browse the contents of >> the topic, I often find that there are some residual messages (usually >> far >> fewer messages than indicated by the QueueSize statistic, but > 0 >> nonetheless). Again, this doesn't gel with my understanding. I thought >> that >> the topics themselves are "virtual" which should imply that they don't >> have >> a persistent cache of messages anywhere? Are the virtual topics >> themselves >> also persisted? If so, when do messages in the topic get evacuated? >> >> You can use the topic as a normal topic - perhaps this is the effect you > see ? when you subscribe then any messages received will be sent to your > topic consumer. > Yes this would explain it. Since we never consume from these topics directly, how do we prevent messages from backing up indefinitely in these topics? We'd prefer not to have a TTL set on our messages, since this is very critical non-transient data. -- View this message in context: http://old.nabble.com/Problems-with-Virtual-Topics-tp28100311p28111206.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.
