Cluster - Rabbit MQ Master Slave

RabbitmQ Master & Slave Installation Documents:

apt-get update
apt-get install rabbitmq-server
Enable the plugin - cd /etc/rabbitmq - rabbitmq-plugins enable rabbitmq_management

Master:

vi /etc/rabbitmq/rabbitmq-env.conf
    NODENAME=rabbit@rabbitmaster (must be unique, can be arbitrary)
chown rabbitmq:rabbitmq /etc/rabbitmq/*
chmod 400 /etc/rabbitmq/*
 vi /etc/hosts - add the following line (must match the content after "@" in the rabbitmq-env.conf NODENAME
    127.0.0.1   rabbitmaster
systemctl restart rabbitmq-server - a success message is displayed when the restart completes successfully.

Slave:

vi /etc/rabbitmq/rabbitmq-env.conf
   NODENAME=rabbit@rabbitslave
vi /etc/hosts - add the following lines:
Note:  192.168.7.* is the local IPv4 address of the master server (e.g., 192.x.x.x)

192.168.7.*  rabbitmaster

127.0.0.1   rabbitslave


sudo chown rabbitmq:rabbitmq /etc/rabbitmq/*

ls -a - show the hidden files & folders
ls -la - show the hidden files & folders with permission

execute below commands in master to slave

before copying please take .erlang.cookie in slave server.
scp -r /var/lib/rabbitmq/.erlang.cookie root@192.168.7.189:/var/lib/rabbitmq/
chown rabbitmq:rabbitmq /var/lib/rabbitmq/.erlang.cookie
chmod 600 /var/lib/rabbitmq/.erlang.cookie

systemctl restart rabbitmq-server

execute below commands in master

systemctl restart rabbitmq-server
rabbitmqctl start_app

Before this step, you have to reboot your slave servers. Run this at all slave nodes;

systemctl status rabbitmq-server
rabbitmqctl stop_app
rabbitmqctl reset
rabbitmqctl join_cluster rabbit@rabbitmaster
rabbitmqctl start_app

Execute the below commands in master server

Verify the cluster with running this command at master node;
rabbitmqctl cluster_status
Adding new administrator user
Add a new/fresh user, say user ‘test’ and password ‘test’
rabbitmqctl add_user test test
Give administrative access to the new user
rabbitmqctl set_user_tags test administrator
Set permission to newly created user
rabbitmqctl set_permissions -p / test ".*" ".*" ".*"
HA Queues
To make all queues HA run this command at master. With this policy enabled RabbitMQ sync all queues to all nodes.
rabbitmqctl set_policy ha-all "" '{"ha-mode":"all","ha-sync-mode":"automatic"}'