pralabhkumar created SPARK-36622:
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Summary: spark.history.kerberos.principal doesn't take value _HOST
Key: SPARK-36622
URL: https://issues.apache.org/jira/browse/SPARK-36622
Project: Spark
Issue Type: Improvement
Components: Deploy, Security, Spark Core
Affects Versions: 3.1.2, 3.0.1
Reporter: pralabhkumar
spark.history.kerberos.principal doesn't understand value _HOST.
It says failure to login for principal : spark/_HOST@realm .
It will be helpful to take _HOST value via config file and change it with
current hostname(similar to what Hive does) . This will also help to run SHS on
multiple machines without hardcoding principal hostname.
.spark.history.kerberos.principal
It require minor change in HistoryServer.scala in initSecurity method .
Please let me know , if this request make sense , I'll create the PR .
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