mysql 重置密码

grep "password" /var/log/mysqld.log 【执行后，发现 localhost 后面是密码】
mysql> set global validate_password_policy=LOW;
mysql> set global validate_password_length=9;
mysql> ALTER USER USER() IDENTIFIED BY 'wangzi2124';
mysql> grant all privileges on *.* to 'root'@'%' identified by 'password' with grant option;
mysql> FLUSH PRIVILEGES;