What is a Queue in ActiveMQ?

A Queue is a destination used for point-to-point messaging: each message placed on the queue is delivered to and consumed by exactly one receiver, even if several consumers are listening. Once a consumer acknowledges the message, it is removed from the queue.

Queues are typically used for work-distribution scenarios such as order processing or task queues, where you want load balanced across multiple worker instances but each unit of work handled only once.

Multiple consumers can still listen on the same queue for scalability - ActiveMQ simply hands each incoming message to only one of them, load balancing work across the pool rather than duplicating it.

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