准备三个节点，系统为CentOS7

Node	IP
rabbitmq01	172.50.0.64
rabbitmq02	172.50.0.65
rabbitmq03	172.50.0.66

这里把node1作为master节点。

1、修改各节点hosts

# vim /etc/hosts

172.50.0.64     rabbitmq01

172.50.0.65     rabbitmq02

172.50.0.66     rabbitmq03

2、在各节点安装rabbitmq-server，并启动服务

# yum install -y rabbitmq-server

# systemctl start rabbitmq-server

# systemctl enable rabbitmq-server

3、启用各节点RabbitMQ Web管理插件，监听15672端口

# rabbitmq-plugins list

# rabbitmq-plugins enable rabbitmq_management

	The following plugins have been enabled:

	  mochiweb

	  webmachine

	  rabbitmq_web_dispatch

	  amqp_client

	  rabbitmq_management_agent

	  rabbitmq_management

	Plugin configuration has changed. Restart RabbitMQ for changes to take effect.

# systemctl start rabbitmq-server

# netstat -tnlp

4、用浏览器访问

http://172.16.100.186:15672/

默认账号和密码都是guest；

5、将master节点的cookie文件复制到各slave节点

# scp /var/lib/rabbitmq/.erlang.cookie node2:/var/lib/rabbitmq/

# scp /var/lib/rabbitmq/.erlang.cookie node3:/var/lib/rabbitmq/

6、停止slave上的app，并将slave节点加入到集群

# rabbitmqctl stop_app

# rabbitmqctl join_cluster rabbit@node1

# rabbitmqctl start_app

7、将各slave加入集群后，查看集群状态

# rabbitmqctl cluster_status

Cluster status of node 'rabbit@rabbitmq01' ...

[{nodes,[{disc,['rabbit@rabbitmq01','rabbit@rabbitmq02',

                'rabbit@rabbitmq03']}]},

 {running_nodes,['rabbit@rabbitmq02','rabbit@rabbitmq03',

                 'rabbit@rabbitmq01']},

 {cluster_name,<<"rabbit@rabbitmq01">>},

 {partitions,[]}]

...done.

8、使用haproxy创建LB集群，在haproxy server上单独创建一个配置文件

# vim /etc/rabbitmq.cfg

listen rabbitmq :5672

        mode tcp

        balance roundrobin

        server rabbit01 172.50.0.64:5672 check inter 5000

        server rabbit02 172.50.0.65:5672 check inter 5000

        server rabbit03 172.50.0.66:5672 check inter 5000

listen rabbitmqui :15672

        mode http

        balance roundrobin

        server rabbit01 172.50.0.64:15672 check inter 5000

        server rabbit02 172.50.0.65:15672 check inter 5000

        server rabbit03 172.50.0.66:15672 check inter 5000

# haproxy -f /etc/rabbitmq.cfg

9、用浏览器访问haproxy server的地址和端口

http://172.16.100.186:15672/