Comment 1 for bug 1463802

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Oleksii Zamiatin (ozamiatin) wrote : Re: RPC clients do not recreate a reply queue after restart of the last RabbitMQ server in the cluster

This issue can be resolved using 'amqp_durable_queues' option which makes rabbitmq to keep queues on the server. After controller restart messages are gone but queue persists with the same name. The option may be set to True in Nova config without oslo.messaging modification.