用drop刪除表的時候，一直處於卡死狀態，也不報錯，如下圖所示

後來發現是Hive元資料儲存編碼問題，編碼不能為utf8,所以我進入資料庫看了一下MySQL的編碼，如下圖

所以要將編碼改回來，方法：在MySQL配置檔案中修改，並刪除原有的資料庫，新建一個一樣的資料庫。

啟動mysql，退出root
[[email protected] Desktop]# service mysql start;
Starting MySQL… [ OK ]
[

[email protected] Desktop]# su - gznc

進入mysql,刪除hive使用者下的hive資料庫，重新建立資料庫

[[email protected] ~]$ mysql -u hive -p123456
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 10
Server version: 5.5.52-log MySQL Community Server (GPL)

Copyright (c) 2000, 2016, 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> show databases;
+——————–+
| Database |
+——————–+
| information_schema |
| hive |
| mysql |
| performance_schema |
| test |
| tt |
+——————–+
6 rows in set (0.18 sec)

mysql> drop database hive;
Query OK, 34 rows affected (0.33 sec)

mysql> create database hive;
Quered (0.00 sec)

退出MySQL，[[email protected] gznc]# su - gznc
[[email protected] ~]$ gedit hive-0.13.1/conf/hive-site.xml

[[email protected] ~]$ hive

Logging initialized using configuration in file:/home/gznc/hive-0.13.1/conf/hive-log4j.properties
hive> show tables;
OK
Time taken: 1.852 seconds
hive> create table student(id int,name string) row format delimited fields terminated by ‘,’;
OK
Time taken: 1.036 seconds
hive> load data local inpath ‘/home/gznc/Desktop/student.txt’ overwrite into table student;
Copying data from file:/home/gznc/Desktop/student.txt
Copying file: file:/home/gznc/Desktop/student.txt
Loading data to table default.student
rmr: DEPRECATED: Please use ‘rm -r’ instead.
Deleted hdfs://master:9000/home/gznc/hive-0.13.1/warehouse/student
Table default.student stats: [numFiles=1, numRows=0, totalSize=35, rawDataSize=0]
OK
Time taken: 1.792 seconds
hive> select * from student;
OK
1 張三
2 lisi
3 wangwu
4 zhaoliu
Time taken: 0.353 seconds, Fetched: 4 row(s)
hive> show tables;
OK
student
Time takconds, Fetched: 1 row(s)
hive> drop table student;
OK
Time taken: 1.028 seconds
hive> show tables;
OK
Time taken: 0.024 seconds