執行systemctl start mariadb.service后終端控制台報如下錯誤：
Job for mariadb.service failed because the control process exited with error code. See “systemctl status mariadb.service” and “journalctl -xe” for details.
解決方法如下：
cp /usr/share/mysql/my-huge.cnf /etc/my.cnf
cp: overwrite ‘/etc/my.cnf’? y
之后執行
systemctl start mariadb.service
mariadb服務啟動成功