How I find the distributed protocol it is using in RabbitMQ?

RabbitMQ support two distributed protocols, one is "mirrored queues", the other is "quorum queues".

Can I get it by CLIs in RabbitMQ,such as rabbitmqctl/rabbitmq-diagnostics?

Solution

What you describe is defined at queue level.

So you need to check the queues information.

If using rabbimtqctl, you should check list_queues and specifically the queue type (classic or quorum). If classic queue, check arguments for replication information

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