（三）hadoop之hive的搭建1

下载

访问官方网站https://hive.apache.org/

点击downloads

点击Download a release now!

点击https://dlcdn.apache.org/hive/

选择最新的稳定版

复制最新的url

在linux执行下载命令

wget https://dlcdn.apache.org/hive/hive-3.1.3/apache-hive-3.1.3-bin.tar.gz

2.解压

tar -zxvf apache-hive-3.1.3-bin.tar.gz

重命名

sudo mv apache-hive-3.1.3-bin apache-hive-3.1.3

移动到/usr/local

sudo mv apache-hive-3.1.3 /usr/local/apache-hive-3.1.3

cd /usr/local/apache-hive-3.1.3

3.配置环境变量

在profile.d下新增配置文件hive_profile.sh

sudo vi /etc/profile.d/hive_profile.sh

内容如下

export HIVE_HOME=/usr/local/apache-hive-3.1.3

export PATH= $PATH:$ HIVE_HOME/bin

刷新环境变量

source /etc/profile

4.搭建mysql并在mysql中创建hive数据库

5.Hive元数据配置到MySQL

5.1上传mysql驱动mysql-connector-java-8.0.21.jar并移动到/usr/local/apache-hive-3.1.3/lib/

sudo mv /home/hadoop/mysql-connector-java-8.0.21.jar /usr/local/apache-hive-3.1.3/lib/

5.2在/usr/local/apache-hive-3.1.3/conf下新增hive-site.xml文件

sudo vi /usr/local/apache-hive-3.1.3/conf/hive-site.xml

内容如下

<name>javax.jdo.option.ConnectionURL</name>

<value>jdbc:mysql://hadoop-master:3306/hive?useSSL=false</value>

</property>

<name>javax.jdo.option.ConnectionDriverName</name>

<value>com.mysql.jdbc.Driver</value>

</property>

<name>javax.jdo.option.ConnectionUserName</name>

</property>

<name>javax.jdo.option.ConnectionPassword</name>

</property>

<name>hive.metastore.schema.verification</name>

<value>false</value>

</property>

<name>hive.metastore.event.db.notification.api.auth</name>

<value>false</value>

</property>

<name>hive.metastore.warehouse.dir</name>

<value>/user/hive/warehouse</value>

</property>

</configuration>

5.3初始化Hive

schematool -initSchema -dbType mysql -verbose

6.启动Hive并测试

hive

查看数据库

show databases;

查看表

show tables;