Updated on 2025-06-20 GMT+08:00

Why Can't I Select Two AZs?

RabbitMQ 3.x.x does not support two AZs. RabbitMQ AMQP-0-9-1 supports two AZs.

Because there are split-brain risks. For higher reliability, you are advised to select three or more AZs when creating a cluster RabbitMQ instance.