Big data cluster construction --- "hive" - rookie Xiaohui

Big data cluster construction-"hive" - ​​rookie Xiaohui

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1. Create upload decompression
2. After installing mysql, you need to create a data set hive in mysql
3. vi /etc/profile

vi /etc/profile
//添加
export HIVE_HOME=/opt/hive/apache-hive-2.3.3-bin
export PATH=$PATH:$HIVE_HOME/bin
//刷新环境变量
source /etc/profile

4. Test environment variables: hive --version

5. Create and edit configuration hive-site.xml

cd /opt/hive/apache-hive-2.3.3-bin/conf/
vi hive-site.xml
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<configuration>
        <property>
                <name>javax.jdo.option.ConnectionURL</name>
                <value>jdbc:mysql://192.168.80.128:3306/hive</value>
        </property>

        <property>
                <name>javax.jdo.option.ConnectionDriverName</name>
                <value>com.mysql.jdbc.Driver</value>
        </property>

        <property>
                <name>javax.jdo.option.ConnectionUserName</name>
                <value>root</value>
        </property>

        <property>
                <name>javax.jdo.option.ConnectionPassword</name>
                <value>HBQ521521cf*</value>
        </property>

        <property>
                <name>hive.metastore.schema.verification</name>
                <value>false</value>
        </property>
</configuration>

6. Put the mysql jar package in the hive/lib directory
   
7. Start hive (start zookeeper and hadoop first)

cd /opt/hive/apache-hive-2.3.3-bin/bin
//初始化
./schematool -initSchema -dbType mysql
./hive 

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• Attach:
• Create a table:create table t1(id int,name String,age int ) row format delimited fields terminated by ',';
• Create a partition table:create table t3(id int,name String,age int) partitioned by(stuid int ) row format delimited fields terminated by ',';