Hi, This is what I'd like to do:
* Clients subscribe to a Topic, when the client starts they need first to receive a initial message (current state of some data in the producer). With this initial message in place, its enough to receive incremental updates of the data. * The initial message is expensive (in size). * The incremental updates are small but frequent. I've read about the QueryBasedSubscriptionRecoveryPolicy where I can override a method in a MessageQuery to get this initial message. However, what would happen if N clients try to subscribe to the topic at the *same* time, will the producer get hit N times? Or does the broker cache the initial message? It's not clear to me how the recovery policy works in the broker in this kind of situation. In my case the producer will be busy processing (which result in the incremental updates), so with many consumer starting frequently, it may not be able to respond fast enough. -- View this message in context: http://activemq.2283324.n4.nabble.com/Incremental-updates-and-QueryBasedSubscriptionRecoveryPolicy-tp3485908p3485908.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.
