CentOS7.2安装MySQL 5.7.10-12666595

喜旎果

　　1.下载MySQL源
　　wget http://dev.mysql.com/get/mysql57-community-release-el7-7.noarch.rpm
　　2.安装MySQL源
　　sudo rpm -ivh mysql57-community-release-el7-7.noarch.rpm
　　3.安装mysql-community-server
　　sudo yum install mysql-community-server -y
　　4.重启mysql
　　systemctl restart mysqld
　　注：自动启动服务用 systemctl enable mysql
　　5.查看临时密码
　　grep 'A temporary password' /var/log/mysqld.log
　　2015-12-24T08:04:50.296020Z 1 [Note] A temporary password is generated for root@localhost: I(eKs9PyklP_
　　6.用临时密码登录mysql并修改root密码，新增用户，打开远程访问
　　>mysql -uroot -p
　　Enter password:
　　Welcome to the MySQL monitor.  Commands end with ; or \g.

　　Your MySQL connection>　　Server version: 5.7.10 MySQL Community Server (GPL)
　　Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
　　Oracle is a registered trademark of Oracle Corporation and/or its
　　affiliates. Other names may be trademarks of their respective
　　owners.
　　Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

　　mysql>>　　Query OK, 0 rows affected (0.00 sec)
　　mysql> flush privileges;
　　Query OK, 0 rows affected (0.00 sec)

　　mysql> create user hadoop>　　Query OK, 0 rows affected (0.00 sec)

　　mysql>grant all privileges on *.* to 'root'@'%'>　　Query OK, 0 rows affected, 1 warning (0.00 sec)
　　7.打开防火墙并重启防火墙，确认端口
　　sudo  firewall-cmd --permanent --add-service mysql
　　systemctl restart firewalld.service
　　iptables -L -n|grep 3306