Queues are by default non exclusive as a result load balancing is possible.
- But as Topics support publish-subscribe model of transport of messages, there will be one to many communication.
- It will send copy of messages to each online subscribers.
- As it is sending messages to all the subscribers in parallel, there is no need of Load Balancing.
- But now EMS 8.0 we can have load balanced kind of scenario in topic subscribers by shared subscription feature.
- When multiple consumers share a subscription, only one consumer in the group receives each new message.