【mysql报错】Starting mysqld (via systemctl): Job for mysqld.service failed because the control process

Starting mysqld (via systemctl):  Job for mysqld.service failed because the control process exited with error code. See "systemctl status mysqld.service" and "journalctl -xe" for details.

 参考：

　　https://www.cnblogs.com/wpnr/p/14072634.html