Tens of thousands of PV sites RABBITMQ installation, cluster

What is RABBITMQ?

MQ is all called the message queue, and Message Queuing (MQ) is an application-to-application communication method. Applications communicate by reading and writing messages to and from the queue (data for the application), without requiring a dedicated connection to link them. Message passing refers to the process of communicating between programs by sending data in a message, rather than by directly invoking each other, and directly invoking techniques such as remote procedure calls. Queuing refers to an application communicating through a queue. The use of queues removes the requirement that both the receiving and sending applications execute concurrently.

RABBITMQ concept

• Broker: The Message Queuing server entity is simply the case.
• Exchange: A message switch that specifies what rules the message is routed to and to which queue.
• Queue: A message queue carrier in which each message is put into one or more queues.
• Binding: Bind, which is the role of binding exchange and queue according to routing rules.
• Routing key: The routing keyword, exchange messages are delivered based on this keyword.
• Vhost: Virtual host, a broker can open multiple vhost, as a separate user permissions.
• Producer: The message producer is the program that delivers the message.
• Consumer: The message consumer is the program that receives the message.
• Channel: The message channels, in each connection of the client, multiple channels can be established, each channel represents a session task.

Host name	IP	Use
Rabbitmq01	192.168.200.128	Disk node
Rabbitmq02	192.168.200.129	Memory nodes
Rabbitmq03	192.168.200.130	Memory nodes

• Installing RABBITMQ

• 1: Need to configure three nodes of the Hosts file, the following content is added to three servers respectively.

  vim /etc/hostname    //其他两台为rabbitmq02、rabbitmq03    rabbitmq01.localdomain# vim /etc/hosts  //添加下面三行192.168.200.128 rabbitmq01192.168.200.129 rabbitmq02192.168.200.130 rabbitmq03# init 6  //重启# service firewalld stop# setenforce 0

• 2: Install the RABBITMQ software.

  # yum install epel-release -y     //安装epel源# yum install -y rabbitmq-server  //安装软件# rabbitmq-plugins list     //查看插件安装情况# rabbitmq-plugins enable rabbitmq_management //启用rabbitmq_management服务# systemctl start rabbitmq-server.service   //启动rabbitmq服务# netstat -ntap | grep 5672# rabbitmqctl cluster_status  //检查三台的集群状态，目前相互独立，没有形成集群。

  
  
  

 

• Building an Erlang cluster

  # systemctl stop rabbitmq-server.service  //停止三台服务器# vi /var/lib/rabbitmq/.erlang.cookie //三台值配置成一样的，复制rabbitmq01的内容到其他两台# systemctl start rabbitmq-server.service

• operate on 02, 03 nodes

  # rabbitmqctl stop_app# rabbitmqctl join_cluster --ram [email protected] //加入到磁盘节点# rabbitmqctl start_app    

 

• Open a browser into web page management
• Input: http://192.168.200.128:15672/
• Default User name: Guest Password: Guest

 

• Create a policy
• Name: Policy names
• Pattern: Matching rule (this is to indicate that the match starts with a, ^ matches all queues)
• Definition; use all in Ha-mode mode, which is to synchronize all matching queues.

• Priority: Precedence, default is 0, the higher the value, the greater the priority.
   
  
   

• Add queue
• Name: Queue names
• Durability: Whether the queue is persisted (durable is supported)
• Auto Delete: Auto Delete
• Arguments: type of policy used

• Add a queue message
• 2-persistent: Indicates persistence, which in turn shows non-persistence.
• Headers: Fill it out
• Properties: Click on the question mark, now an ID number
• Payload: Message Content

Sleep the rest of tomorrow write

Tens of thousands of PV sites RABBITMQ installation, cluster