centos7 mysql 安装

yum search libaio # 检索相关信息
yum install libaio # 安装依赖包
wget http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm
yum localinstall mysql-community-release-el7-5.noarch.rpm
yum install mysql-community-server
启动 MySQL Server
systemctl start  mysqld
查看 MySQL Server 状态
systemctl status  mysqld
关闭 MySQL Server
systemctl stop mysqld
mysql安全设置
mysql_secure_installation;

mysql -p
grant all privileges on *.* to 'rai'@'%'  identified by 'tiger' with grant option;