We have setup a RabbitMQ cluster with 3 nodes. If an effort to have some form of load balancing, we setup the policy to only sync across 2 of the nodes:
rabbitmqctl set_policy ha-2 . '{"ha-mode":"exactly","ha-params":2,"ha-sync-mode":"automatic"}'
This works as expected when all 3 nodes are online.
When we shutdown one of the nodes (to simulate a failure) queues mastered on the failed node are still available (on the slave) but not synchronized to another node. If we manually re-apply the policy, the queues then synchronize as expected.
Should we expect that all queues be mirrored in the scenario that one node fails with this policy?
Works as expected in RabbitMQ 3.5.4