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 2. Configure HDP

[Note]Note

If you are using an Ambari-managed cluster, use Ambari to update the Service configurations (core-site.xml, mapred-site.xml, webhbcat-site.xml and oozie-site.xml). Do not edit the configuration files directly and use Ambari to start and stop the services.

  1. Modify the hdfs-site.xml file.

    On the NameNode, Secondary NameNode, and all the DataNodes, add the following properties to the $HADOOP_CONF_DIR/hdfs-site.xml file.

    where $HADOOP_CONF_DIR is the directory for storing the Hadoop configuration files. For example, /etc/hadoop/conf.

    <property>
  <name>dfs.webhdfs.enabled</name>
  <value>true</value>
</property>

  2. Modify the core-site.xml file.

    On the NameNode, Secondary NameNode, and all the DataNodes, add the following properties to the $HADOOP_CONF_DIR/core-site.xml file.

    where $HADOOP_CONF_DIR is the directory for storing the Hadoop configuration files. For example, /etc/hadoop/conf.

    <property>
  <name>hadoop.proxyuser.hue.hosts</name>
  <value>*</value>
</property>

    <property>
  <name>hadoop.proxyuser.hue.groups</name>
  <value>*</value>
</property>

    <property>
<name>hadoop.proxyuser.hcat.groups</name>
<value>*</value>
</property>

    <property>
<name>hadoop.proxyuser.hcat.hosts</name>
<value>*</value>
</property>

  3. Modify the webhcat-site.xml file. On the WebHCat Server host, add the following properties to the $WEBHCAT_CONF_DIR/webhcat-site.xml Where $WEBHCAT_CONF_DIR is the directory for storing WebHCat configuration files. For example, /etc/webhcat/conf. 

    vi $WEBHCAT_CONF_DIR/webhcat-site.xml
    <property>
  <name>webhcat.proxyuser.hue.hosts</name>   
  <value>*</value> 
</property> 

    <property>   
  <name>webhcat.proxyuser.hue.groups</name>  
  <value>*</value>
</property>

  4. Modify the oozie-site.xml file. On the Oozie Server host, add the following properties to the $OOZIE_CONF_DIR/oozie-site.xml Where $OOZIE_CONF_DIR is the directory for storing Oozie configuration files. For example, /etc/oozie/conf. 

    vi $OOZIE_CONF_DIR/oozie-site.xml
    <property>
  <name>oozie.service.ProxyUserService.proxyuser.hue.hosts</name>
  <value>*</value>
</property> 
    <property>   
  <name>oozie.service.ProxyUserService.proxyuser.hue.groups</name>
  <value>*</value> 
</property>

  5. Switch to the HDFS user and stop the NameNode by running the following command:

    su $HDFS_USER
/usr/lib/hadoop/sbin/hadoop-daemon.sh --config $HADOOP_CONF_DIR stop namenode

    Where $HADOOP_CONF_DIR is the directory for storing the Hadoop configuration files. For example, /etc/hadoop/conf

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