安装mysql

[root@SPARK02 upload]#yum list 'mysql-*'

[root@SPARK02 upload]#yum -y install mysql-server.x86_64

[root@SPARK02 upload]#service mysqld start #启动Mysql

[root@SPARK02 upload]#mysql  #测试

mysql>/q #退出

[root@SPARK02 upload]#chkconfig mysqld on #设置Mysql开机启动

#开启3306端口并保存

[root@SPARK02 upload]#/sbin/iptables -I INPUT -p tcp --dport 3306 -j ACCEPT

[root@SPARK02 upload]#/etc/rc.d/init.d/iptables save

#数据库安装OK，默认无密码

[root@SPARK02 upload]#mysql

#查看数据库系统用户

mysql>select user,host,password from mysql.user;

mysql>set password for root@localhost=password('spark');#设置root用户密码

mysql>delete from mysql.user where user='' and host='hostname';#删除其他用户

mysql>flush privileges;

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