[rabbitmq-discuss] Redelivery of unacknowledged messages

[Matthias Radestock]

Ben Hood wrote:
>> When are unacknowledged messages redelivered?
> 
> After the channel in which the initial receive has been closed and a
> new channel has been setup.

To be precise, unacknowledged messages become eligible for redelivery 
when the channel (or connection) on which they have been delivered is 
closed.

If a queue has more than one consumer, the message will be delivered to 
one of the remaining consumers. Otherwise it will be enqueued and can 
thus be consumed by a consumer which comes along later.


Matthias.