在node1節點上安裝mysql,啟動Hive時報錯問題解決辦法

在node1節點上安裝瞭mysql,啟動Hive時報錯:

Caused by: java.sql.SQLException: Access denied for user ‘root’@’node1’ (using password: YES)

測試登錄MySQL

1. 登錄node1(本地節點)節點上的mysql

[root@node1 ~]#  mysql -h node1 -uroot -p123456
ERROR 1045 (28000): Access denied for user 'root'@'node1' (using password: YES)

登錄本地資料庫

[root@node1 ~]#  mysql -uroot -p123456
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 9
Server version: 5.1.73 Source distribution
Copyright (c) 2000, 2013, 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>

查詢用戶表

mysql> select user,host,password from mysql.user;
+------+-----------+-------------------------------------------+
| user | host      | password                                  |
+------+-----------+-------------------------------------------+
| root | localhost | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |
| root | node1     |                                           |
| root | 127.0.0.1 |                                           |
|      | localhost |                                           |
|      | node1     |                                           |
| root | %         | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |
+------+-----------+-------------------------------------------+
6 rows in set (0.00 sec)

發現問題瞭。

先刪除node1記錄

mysql> delete from mysql.user where host='node1';
Query OK, 2 rows affected (0.05 sec)
mysql> select user,host,password from mysql.user;
+------+-----------+-------------------------------------------+
| user | host      | password                                  |
+------+-----------+-------------------------------------------+
| root | localhost | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |
| root | 127.0.0.1 |                                           |
|      | localhost |                                           |
| root | %         | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |
+------+-----------+-------------------------------------------+
4 rows in set (0.00 sec)

再刪除密碼為空的記錄

mysql> delete from mysql.user where user is null;
Query OK, 0 rows affected (0.01 sec)
mysql> delete from mysql.user where password='';
Query OK, 2 rows affected (0.00 sec)
mysql> select user,host,password from mysql.user;
+------+-----------+-------------------------------------------+
| user | host      | password                                  |
+------+-----------+-------------------------------------------+
| root | localhost | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |
| root | %         | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |
+------+-----------+-------------------------------------------+
2 rows in set (0.00 sec)

最後對root授權

mysql> grant all privileges on *.* to root@'%' identified by '123456' with grant option;
Query OK, 0 rows affected (0.00 sec)

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

mysql> exit
Bye
[root@node1 ~]# mysql -h node1 -uroot -p123456
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 7
Server version: 5.1.73 Source distribution

Copyright (c) 2000, 2013, 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> 

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