数据库：percona5.7.11
今天登陆数据库的时候报错
[root@leo~]# mysql -uroot -p
Enter password:
ERROR 1524 (HY000): Plugin '*9E53930467B20A15727780FB02007B379CE21A84' is not loaded
报错大概的意思*9E53930467B20A15727780FB02007B379CE21A84没有加载
错误原因：
mysql登录验证密码插件是mysql_native_password（mysql.user表中的plugin字段记录的是密码插件），而现在这个用户的登录密码插件是XXXXXXXXXXXXX，所有会报错
解决方法：
使用skip-grant-tables方法进入数据库
select user,password,plugin from user where user='root';
mysql> select user,password,plugin from user;
+-------+----------+-------------------------------------------+
| user | password | plugin|
+-------+----------+-------------------------------------------+
| root | | *9E53930467B20A15727780FB02007B379CE21A84 |
+-------+----------+-------------------------------------------+
1 rows in set (0.00 sec)
果然plugin被修改过
mysql> update user set plugin='mysql_native_password' where user='root'; 修改回来
mysql> flush privileges;