MySQL auto start settings start with systemctl start mysqld

1. If you use yum If you install it, you don't need to set it       use systemctl restart mysqld The following error is reported during startup ：

2. Check whether the system service has mysqld

chkconfig --list

3.MySQL Start close add to /etc/init.d/mysqld

cp /data/mysql/support-files/mysql.server /etc/init.d/mysqld   （ /data/mysql For installation directory ）

4. Then install the server as follows

cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql   Copy the service file to init.d Next , And rename to mysqld

chmod +x /etc/init.d/mysqld     Give executable permission

chkconfig --add mysqld     Add service

chkconfig --list           Show the list of services

5. Here's the picture   If you see mysql Service for , also 3,4,5 All are on If you don't, you succeed , If it is off, Then type

6.#### Restart the computer
reboot

Restart and watch again mysql Whether the self start is successful

Enter the command ：systemctl status mysqld