什么是RabbitMQ

前言

好好学习

什么是RabbitMQ

RabbitMQ是支持持久化消息队列的消息中间件。应用在上下游的层次级业务逻辑中，上级业务逻辑相当于生产者发布消息，下级业务逻辑相当于消费者接受到消息并且消费消息。

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安装erlang

1.安装依赖包

yum install ncurses-devel

2.安装erlang

 yun install erlang

3.查看erlang安装的目录

[root@VM_0_11_centos mallSeckill]# whereis erlang
erlang: /usr/lib64/erlang

4.配置erlang环境变量，source /etc/profile让配置生效。

#set erlang environment
ERLANG_HOME=/usr/lib64/erlang
PATH=$ERLANG_HOME/bin:$PATH
export ERLANG_HOME PATH

5.erl命令测试，安装成功。

[root@VM_0_11_centos mallSeckill]# erl
Erlang R16B03-1 (erts-5.10.4) [source] [64-bit] [async-threads:10] [hipe] [kernel-poll:false]

Eshell V5.10.4  (abort with ^G)
1> 

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安装RabbitMQ依赖

1.安装python

yum install python

2.安装Simplejson

yum install xmlto
yum install python-simplejson

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解压命令

1.解压tar尾缀的压缩包

tar -xvf

2.解压xz尾缀的压缩包

xz -d

3.解压tar.gz尾缀的压缩包

tar -zxvf

4.解压zip尾缀的压缩包

unzip

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安装RabbitMQ

1.解压压缩包

cd /usr/local/software
xz -d rabbitmq-server-generic-unix-3.6.14.tar.xz
tar -xvf rabbitmq-server-generic-unix-3.6.14.tar
mv rabbitmq_server-3.6.14/ /usr/local/rabbitmq

2.配置rabbitmq的环境，source /etc/profile让其生效。

PATH=/usr/local/rabbitmq/sbin:$PATH
export PATH

3.启动rabbitmq，让其以后台守护进程方式启动。rabbitmq的端口号是5672

[root@VM_0_11_centos ~]# rabbitmq-server -detached
Warning: PID file not written; -detached was passed.
[root@VM_0_11_centos ~]# netstat -anp|grep 5672
tcp        0      0 0.0.0.0:25672           0.0.0.0:*               LISTEN      12580/beam          
tcp        0      1 172.16.0.11:35672       172.27.49.215:6379      SYN_SENT    12659/pnscan        
tcp        0      1 172.16.0.11:56724       172.27.49.134:6379      SYN_SENT    12659/pnscan        
tcp6       0      0 :::5672                 :::*                    LISTEN  

4.查看rabbitmq的状态

image.png

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RabbitMQ网页插件配置

1.创建目录

[root@VM_0_11_centos ~]# mkdir /etc/rabbitmq

2.开启网页插件

[root@VM_0_11_centos ~]# rabbitmq-plugins enable rabbitmq_management
The following plugins have been enabled:
  amqp_client
  cowlib
  cowboy
  rabbitmq_web_dispatch
  rabbitmq_management_agent
  rabbitmq_management

Applying plugin configuration to rabbit@VM_0_11_centos... started 6 plugins.

3.配置防火墙，rabbitmq的端口是5672，rabbitmq网页端口是15672，然后service iptables restart重启防火墙。

-A INPUT -p tcp -m state --state NEW -m tcp --dport 5672 -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 15672 -j ACCEPT

4.访问rabbitmq网页

image.png

5.配置账号和权限。

rabbitmqctl add_user ${username} ${password}
rabbitmqctl set_permissions -p / ${username} ".*" ".*" ".*"
rabbitmqctl set_user_tags ${username} administrator

6.登录成功后，访问rabbitmq网页

image.png

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尾言

天天向上，六一儿童节快乐。
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