Configuring Specific Ambari Views
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Configure your cluster for Pig View

For Pig View to access HDFS, the Ambari Server daemon hosting the view must act as the proxy user for HDFS. The Ambari Pig View is deprecated in HDP 3.0 and later. Ambari does not enable Pig View. To enable Pig View in HDP 3.0 and later, you need to contact Hortonworks support for instructions that include how to install WebHCat using an Ambari management pack.

Ambari submits requests to HDFS on behalf of the users using the Pig View. This is critical since Pig View will store metadata about the user Pig scripts. This also means users that will access Pig View must have a user directory setup in HDFS. In addition, Pig View uses WebHCat to submit Pig scripts so the View needs a proxy user for WebHCat.