RabbitMQ — Cluster Config

# Master node
rabbitmqctl set_policy ha-all "" '{"ha-mode":"all","ha-sync-mode":"automatic"}'

# Slave nodes
rabbitmqctl stop_app
rabbitmqctl join_cluster rabbit@SERVER_DNS_NAME
rabbitmqctl start_app

Troubleshoot

All nodes MUST have the same erlang.cookie. Locations:

• /var/lib/rabbitmq/.erlang.cookie
• $HOME/.erlang.cookie

Force file locations

touch /etc/rabbitmq/rabbitmq-env.conf

Content:

NODENAME=rabbit@$HOSTNAME
NODE_IP_ADDRESS=x.x.x.x
NODE_PORT=5672

HOME=/var/lib/rabbitmq
LOG_BASE=/var/log/rabbitmq
MNESIA_BASE=/var/lib/rabbitmq/mnesia