熟悉常用的HBase操作,编写MapReduce作业
1. 以下关系型数据库中的表和数据,要求将其转换为适合于HBase存储的表并插入数据:
学生表(Student)(不包括最后一列)
学号(S_No) |
姓名(S_Name) |
性别(S_Sex) |
年龄(S_Age) |
课程(course) |
2015001 |
Zhangsan |
male |
23 |
|
2015003 |
Mary |
female |
22 |
|
2015003 |
Lisi |
male |
24 |
数学(Math)85 |
create 'Student','sname','ssex','sage'
put 'Student','2015001','sname','Zhangsan'
put 'Student','2015001','ssex','male'
put 'Student','2015001','sage','23'
put 'Student','2015002','sname','Mary'
put 'Student','2015002','ssex','female'
put 'Student','2015002','sage','22'
put 'Student','2015003','sname','Lisi'
put 'Student','2015003','ssex','male'
put 'Student','2015003','sage','24
2. 用Hadoop提供的HBase Shell命令完成相同任务:
- 列出HBase所有的表的相关信息;list
- 在终端打印出学生表的所有记录数据;
- 向学生表添加课程列族;
- 向课程列族添加数学列并登记成绩为85;
- 删除课程列;
- 统计表的行数;count 's1'
- 清空指定的表的所有记录数据;truncate 's1'