1.0-mq getting started and using

1. At present, I have been exposed to kafka、ActiveMQ、RabbitMQ、RocketMQ Wait for message middleware .

among RabbitMQ By erlang To write , The rest is by java To write （kafka Contains other languages ）.

MQ The main function of Peak shaving 、 asynchronous 、 decoupling , Its specific introduction is Baidu , There are many tutorials outside , This section focuses on actual combat .

This study focuses on ActiveMQ For example ：

  Download address ：http://activemq.apache.org/ 

Downloaded from the official website apache-activemq-5.16.0-bin.tar.gz, Upload to the server （ I didn't buy a server , It is directly loaded in the virtual machine centOS7）.

Normally place directory /opt Next .

 

2. Download and install

tar -zxvf apache-activemq-5.16.0-bin.tar.gz

Create a new directory under the root directory activeMQ, take apache-activemq-5.16.0 Copy the contents and contents （ It is better to delete the source file , After all, there will be more and more files accumulated over time , Clear as soon as you know you can ）.

3. start-up MQ

3.1 Normal startup ： find mq Next bin Catalog

Start command ：./activemq start

The default process port is 61616

As shown in the above figure, the startup is successful ！

 

The following is to view the startup occupancy service ：

You can see 4092 The process is activeMQ（grep -v grep For masking lookups grep Self information ）.

Check the port ：netstat -anp|grep 61616

notes ：lsof -i:61616 You can directly view the port to determine whether it is started MQ

4. close MQ

Stop command ：./activemq stop

 

5. With log MQ Processing mode

The print log is appended to the file at startup ： ./activemq start > /activeMQ/myrunmq.log

 

The above is the basic installation and use process ~