安装hive最佳实践

以下是安装hive和配置使用mysql存储元数据：

下载，解压，配置$HIVE_HOME环境变量，将$HIVE_HOME/bin加入PATH
在$HIVE_HOME/conf下增加hive-site.xml文件

<?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://host/hivedb?createDatabaseIfNotExist=true</value>  
    </property>  

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

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

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

    <property>
        <name>hive.metastore.warehouse.dir</name>
        <value>hdfs://master:9000/user/hive/warehouse/</value>
    </property>

    <property>
        <name>datanucleus.autoStartMechanism</name>
        <value>SchemaTable</value>
    </property>

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

    <property>
        <name>datanucleus.schema.autoCreateAll</name>
        <value>true</value>
    </property>
</configuration>

在$HIVE_HOME/lib下增加依赖的数据库jar包

cp mysql-connector-java-5.1.38-bin.jar $HIVE_HOME/lib/

创建mysql的hive用户和hive元数据存储库，并给hive用户授权

create database hivedb DEFAULT CHARACTER SET latin1;
create user 'hive'@'%' IDENTIFIED BY '***';
GRANT ALL ON hivedb.* TO 'hive'@'%'; 
flush privileges;

初始化hive元数据表

schematool -dbType mysql -initSchemaTo 1.2.0

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