解决方法：关闭它，打开/etc/selinux/config，把SELINUX=enforcing改为SELINUX=disabled后存盘退出重启机器试试
MySQL server PID file could not be found!
标签：art 一个 sof mysqld pid data bin cin 进程
MySQL server PID file could not be found!
，默认会开启selinux