How Do I Set Wait_Timeout to Unlimited in Mysql?

1. Edit my.cnf (the MySQL configuration file).

   sudo vi /etc/mysql/mysql.conf.d/mysqld.cnf
   

2. Locate the timeout configuration and adjust it to fit your server.

   [mysqld]
   wait_timeout = 31536000
   interactive_timeout = 31536000
   

3. Save the changes and exit the editor.

4. Restart MySQL to apply the changes as follows:

   sudo /etc/init.d/mysql restart
   

In my case, when I alter /etc/*/my.cnf, it would cause a lot of bugs. So I change to use mysql command to change it.

1. open mysql sudo service mysql start

2. open command window

   sudo mysql -u username -p 
   

3. change the timeout

   SET @@GLOBAL.interactive_timeout=31536000
   

4. restart server

   sudo service mysql restart
   

windows timeout default is 31536000, you can choose the time you like And the way to see the timeout is show global variables like 'wait_timeout'