Centos安装MySQL8.0，启动时报错：Failed to start mysqld.service: Unit not found

错误：

[root@VM-0-16-centos ~]# service mysql.server start

Redirecting to /bin/systemctl start mysql.server.service

Failed to start mysql.server.service: Unit not found.

解决办法：

首先需要安装mariadb-server

      安装mariadb-server

　　~]# yum install -y mariadb-server

　　启动服务

　　~]# systemctl start mariadb.service

　　添加到开机启动

　　~]# systemctl enable mariadb.service