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PowerScale OneFS HDFS Configuration Guide

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Set the HDFS authentication method (CLI)

Configure the HDFS authentication method in each access zone using the command-line interface.

If you want to Hadoop clients to connect to an access zone through Kerberos, a Kerberos authentication provider must be configured and added to the access zone.
Run the isi hdfs settings modify command.
The following command specifies that Hadoop compute clients connecting to the zone3 must be identified through the simple authentication method: 
isi hdfs settings modify  --authentication-mode=simple_only --zone3
The following command specifies that Hadoop compute clients connecting to zone3 must be identified through the Kerberos authentication method: 
isi zone zones modify zone3 --authentication-mode=kerberos_only
To ensure that users can authenticate through Kerberos, you must modify the core-site.xml file on clients running Hadoop 2.2 and later.

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