尚硅谷大数据技术之Hive(新)第1章 Hive入门

第2章 Hive安装

2.1 Hive安装地址

1.Hive官网地址

http://hive.apache.org/

2.文档查看地址

https://cwiki.apache.org/confluence/display/Hive/GettingStarted

3.下载地址

http://archive.apache.org/dist/hive/

4.github地址

https://github.com/apache/hive

2.2 Hive安装部署

1.Hive安装及配置

(1)把apache-hive-1.2.1-bin.tar.gz上传到linux的/opt/software目录下

(2)解压apache-hive-1.2.1-bin.tar.gz到/opt/module/目录下面

[atguigu@hadoop102 software]$ tar -zxvf apache-hive-1.2.1-bin.tar.gz -C /opt/module/

(3)修改apache-hive-1.2.1-bin.tar.gz的名称为hive

[atguigu@hadoop102 module]$ mv apache-hive-1.2.1-bin/ hive

(4)修改/opt/module/hive/conf目录下的hive-env.sh.template名称为hive-env.sh

[atguigu@hadoop102 conf]$ mv hive-env.sh.template hive-env.sh

(5)配置hive-env.sh文件

(a)配置HADOOP_HOME路径

export HADOOP_HOME=/opt/module/hadoop-2.7.2

(b)配置HIVE_CONF_DIR路径

export HIVE_CONF_DIR=/opt/module/hive/conf

2.Hadoop集群配置

(1)必须启动hdfs和yarn

[atguigu@hadoop102 hadoop-2.7.2]$ sbin/start-dfs.sh

[atguigu@hadoop103 hadoop-2.7.2]$ sbin/start-yarn.sh

(2)在HDFS上创建/tmp和/user/hive/warehouse两个目录并修改他们的同组权限可写

[atguigu@hadoop102 hadoop-2.7.2]$ bin/hadoop fs -mkdir /tmp

[atguigu@hadoop102 hadoop-2.7.2]$ bin/hadoop fs -mkdir -p /user/hive/warehouse

[atguigu@hadoop102 hadoop-2.7.2]$ bin/hadoop fs -chmod g+w /tmp

[atguigu@hadoop102 hadoop-2.7.2]$ bin/hadoop fs -chmod g+w /user/hive/warehouse

3.Hive基本操作

(1)启动hive

[atguigu@hadoop102 hive]$ bin/hive

(2)查看数据库

hive> show databases;

(3)打开默认数据库

hive> use default;

(4)显示default数据库中的表

hive> show tables;

(5)创建一张表

hive> create table student(id int, name string);

(6)显示数据库中有几张表

hive> show tables;

(7)查看表的结构

hive> desc student;

(8)向表中插入数据

hive> insert into student values(1000,"ss");

(9)查询表中数据

hive> select * from student;

(10)退出hive

hive> quit;