To use non-secure HDFS,
set the authentication mode to simple in kubernetes/conf/core-site.xml.
$ vi kubernetes/conf/core-site.xml
<property>
<name>hadoop.security.authentication</name>
<value>simple</value>
</property>
If the authenticaion mode should be set to kerberos
(because of the use of Kerberos-based authentication for Metastore and HiveServer2),
set the configuration key ipc.client.fallback-to-simple-auth-allowed to true.
$ vi kubernetes/conf/core-site.xml
<property>
<name>hadoop.security.authentication</name>
<value>kerberos</value>
</property>
<property>
<name>ipc.client.fallback-to-simple-auth-allowed</name>
<value>true</value>
</property>
To use secure (Kerberized) HDFS, see Accessing Secure HDFS.
