To set up an HDFS
proxy user for the Ambari Server daemon account, you must configure the proxy user in the
HDFS configuration.
This configuration is determined by the account name the
ambari-server daemon is running as. For example, if your ambari-server is running as
root, you set up an HDFS proxy user for root .-
In Ambari Web, browse to .
-
On the Advanced tab, navigate to the Custom
core-site section.
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Click Add Property… to add the following custom
properties:
hadoop.proxyuser.root.groups="users"
hadoop.proxyuser.root.hosts=ambari-server.hostname
Notice the ambari-server daemon account name root is part of the property
name. Be sure to modify this property name for the account name you are running
the ambari-server as. For example, if you were running ambari-server daemon
under the account name ambariusr, you would use the following properties
instead:
hadoop.proxyuser.ambariusr.groups="users"
hadoop.proxyuser.ambariusr.hosts=ambari-server.hostname
Similarly, if you have configured Ambari Server for Kerberos, be sure to
modify this property name for the primary Kerberos principal user. For example,
if ambari-server is set up for Kerberos using principal
ambari-server@EXAMPLE.COM, you would use the following properties
instead:
hadoop.proxyuser.ambari-server.groups="users"
hadoop.proxyuser.ambari-server.hosts=ambari-server.hostname
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Save the configuration change.
Restart the required components as prompted by Ambari.
