rabbitmq clustering
# on rabbit3
rabbitmqctl stop_app
# => Stopping node rabbit@rabbit3 ...done.
# on rabbit3
rabbitmqctl reset
# => Resetting node rabbit@rabbit3 ...
rabbitmqctl join_cluster rabbit@rabbit2
# => Clustering node rabbit@rabbit3 with rabbit@rabbit2 ...done.
rabbitmqctl start_app
# => Starting node rabbit@rabbit3 ...done.