MySQL 5.7.13-1.el6.x86_64 安裝配置總結

# 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 重啓一下數據庫，會自動進行初始化。

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

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 //輸入密碼

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

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安裝完mysql 以後，登錄之後，無論運行任何命令，老是提示這個

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'; //設置意IP能夠訪問

mysql> flush privileges;

• 必須使用alter user 重置密碼：

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

• 從新設置密碼：

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

配置文件目錄： /etc/my.cnf 

 

set GLOBAL max_connections=300

升級到最新的mysql

yum -y upgrade mysql 

 

CentOS Linux更改MySQL5.7數據庫目錄位置

cp -a mysql /data/mysql/  參數a表示權限一致

datadir=/data/mysql

socket=/data/mysql/mysql.sock