Hari Krishna Dara created SPARK-12646:
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Summary: Support _HOST in kerberos principal for connecting to
secure cluster
Key: SPARK-12646
URL: https://issues.apache.org/jira/browse/SPARK-12646
Project: Spark
Issue Type: Improvement
Components: YARN
Reporter: Hari Krishna Dara
Priority: Minor
Hadoop supports _HOST as a token that is dynamically replaced with the actual
hostname at the time the kerberos authentication is done. This is supported in
many hadoop stacks including YARN. When configuring Spark to connect to secure
cluster (e.g., yarn-cluster or yarn-client as master), it would be natural to
extend support for this token to Spark as well.
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