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;