MySQL 5.7.13-1.el6.x86_64 安装配置总结

# rpm -Uvh http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm

[root@test]# yum install mysql

[root@test]# yum install mysql-server

[root@test]# yum install mysql-devel

[root@test /]# /etc/init.d/mysqld restart 重启一下数据库，会自动进行初始化。

[root@test /]# cat /var/log/mysqld.log | grep "temporary password" 查看密码

2016-06-03T11:22:35.841809Z 1 [Note] A temporary password is generated for root@localhost: 8!Q%r!3:6zs(

[root@test /]# mysql -uroot -p //输入密码

mysql> update mysql.user set authentication_string=password('123qwe') where user='root' and Host = 'localhost'; //更新密码

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安装完mysql 以后，登录之后，无论运行任何命令，老是提示这个

You must reset your password using ALTER USER statement before executing this statement.

step 1: SET PASSWORD = PASSWORD('your new password');

step 2: ALTER USER 'root'@'localhost' PASSWORD EXPIRE NEVER;

step 3: flush privileges;

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mysql> update mysql.user set host = '%'  where user ='root'; //设置意IP能够访问

mysql> flush privileges;

• 必须使用alter user 重置密码：

  mysql> show databases;
  ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.

• 从新设置密码：

  mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY '********'

配置文件目录： /etc/my.cnf 

 

set GLOBAL max_connections=300

升级到最新的mysql

yum -y upgrade mysql 

 

CentOS Linux更改MySQL5.7数据库目录位置

cp -a mysql /data/mysql/  参数a表示权限一致

datadir=/data/mysql

socket=/data/mysql/mysql.sock