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From "Saisai Shao (JIRA)" <>
Subject [jira] [Created] (SPARK-17209) Support manual credential updating in the run-time
Date Wed, 24 Aug 2016 07:07:20 GMT
Saisai Shao created SPARK-17209:

             Summary: Support manual credential updating in the run-time
                 Key: SPARK-17209
             Project: Spark
          Issue Type: Improvement
          Components: Spark Core, YARN
            Reporter: Saisai Shao
            Priority: Minor

Current Spark on YARN supports time based credential renewal and updating, this mainly addresses
the problem of token expiration for long running Spark applications.

But still there're some use cases in which security services will be changed in the run-time
of Spark application. For example, user may want to change to access another HBase cluster
or Hive Metastore service in the run-time, in such use cases credentials should be updated
immediately by user explicitly, so that user could reconnect to new HBase cluster or Metastore

So here propose to add ability in Spark to manually trigger the credential updating in the

This is a follow-up works of SPARK-14743.

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