RabbitMQ集群

RabbitMQ集群

环境:

CentOS7
erlang-18.3
rabbitmq-3.6.5

3节点集群,添加hosts

192.168.130.45 192-168-130-45

192.168.130.46 192-168-130-46

192.168.130.47 192-168-130-47

本实验采用yum安装

一.Erlang

yum安装erlang-18.3，略

或

源码安装
http://www.erlang.org
https://github.com/erlang/otp/blob/maint/HOWTO/INSTALL.md
yum -y install fop

curl -SL http://erlang.org/download/otp_src_19.3.tar.gz|tar -xvf - -C /usr/local/src
cd /usr/local/src/otp_src_19
./configure --prefix=/opt/erlang && make -j4 && make install
提示:默认没有wxWidgets,有需要的同学可以参看https://www.wxwidgets.org
rpm包见https://www.erlang-solutions.com/resources/download.html


二.RabbiMQ
yum安装rabbitmq-3.6.5,安装略

或

二进制包

http://www.rabbitmq.com/install-generic-unix.html
curl -SL http://www.rabbitmq.com/releases/rabbitmq-server/v3.6.9/rabbitmq-server-generic-unix-3.6.9.tar.xz|tar -xvf - -C /opt/
mv /opt/rabbitmq_server-3.6.9/ /opt/rabbitmq
cp -a /opt/rabbitmq/share/man/* /usr/share/man/

echo 'RABBITMQ_HOME=/opt/rabbitmq' >/etc/profile.d/rabbitmq.env
source /etc/profile.d/rabbitmq.env

提示:必要时还可增加自定义配置文件
echo > /opt/rabbitmq/etc/rabbitmq/rabbitmq-env.conf <<'EOF'
NODENAME=node1@rabbit
CONFIG_FILE=$RABBITMQ_HOME/etc/rabbitmq/rabbitmq.config
EOF

三.配置RabbiMQ集群
http://www.rabbitmq.com/configure.html

http://www.rabbitmq.com/clustering.html

https://github.com/rabbitmq/rabbitmq-server/blob/stable/docs/rabbitmq.config.example
1.停止rabbitmq(所有节点)

systemctl stop rabbitmq-server

2.同步.erlang.cookie到其它集群节点

scp /var/lib/rabbitmq/.erlang.cookie root@192.168.130.46:/var/lib/rabbitmq/.erlang.cookie

scp /var/lib/rabbitmq/.erlang.cookie root@192.168.130.47:/var/lib/rabbitmq/.erlang.cookie

3.修改.erlang.cookie的权限(46,47上操作)

chown rabbitmq:rabbitmq /var/lib/rabbitmq/.erlang.cookie

chmod 400 /var/lib/rabbitmq/.erlang.cookie

4.启动rabbitmq(所有节点)

systemctl start rabbitmq-server

systemctl enable rabbitmq-server

5.加入集群(46,47上操作)

rabbitmqctl stop_app

rabbitmqctl join_cluster --ram rabbit@192-168-130-45

rabbitmqctl start_app

注意:rabbit@192-168-130-45是主机名

6.查看集群状态(任意节点)

[root@192-168-130-45 ~]# rabbitmqctl cluster_status

Cluster status of node 'rabbit@192-168-130-45' ...

[{nodes,[{disc,['rabbit@192-168-130-45']},

         {ram,['rabbit@192-168-130-47','rabbit@192-168-130-46']}]},

 {running_nodes,['rabbit@192-168-130-47','rabbit@192-168-130-46',

                 'rabbit@192-168-130-45']},

 {cluster_name,<<"rabbit@192-168-130-45">>},

 {partitions,[]},

 {alarms,[{'rabbit@192-168-130-47',[]},

          {'rabbit@192-168-130-46',[]},

          {'rabbit@192-168-130-45',[]}]}]

7.配置所有节点镜像queue(任意节点上操作一次即可)

rabbitmqctl set_policy ha-all '^(?!amq.).*' '{"ha-mode": "all"}'

8.启用web插件

rabbitmq-plugins enable rabbitmq_management

rabbitmqctl add_user admin admin

rabbitmqctl set_user_tags admin administrator

9.修改节点持久化为ram

rabbitmqctl stop_app

rabbitmqctl change_cluster_node_type ram

rabbitmqctl start_app

提示:集群中至少有一个为本地磁盘持久化

提示: 可以重置rabbit，例如

rabbitmqctl stop_app

rabbitmqctl reset

rabbitmqctl start_app

rabbitmqctl

add_user openstack RABBIT_PASS

rabbitmqctl

set_permissions openstack ".*" ".*" ".*"

四.测试
http://www.rabbitmq.com/tutorials/tutorial-one-python.html
http://github.com/rabbitmq/rabbitmq-tutorials/blob/master/python/send.py
http://github.com/rabbitmq/rabbitmq-tutorials/blob/master/python/receive.py