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https://issues.apache.org/jira/browse/SPARK-17209?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Saisai Shao updated SPARK-17209:
--------------------------------
    Summary: Support manual credential updating in the run-time for Spark on 
YARN  (was: Support manual credential updating in the run-time)

> Support manual credential updating in the run-time for Spark on YARN
> --------------------------------------------------------------------
>
>                 Key: SPARK-17209
>                 URL: https://issues.apache.org/jira/browse/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 service.
> So here propose to add ability in Spark to manually trigger the credential 
> updating in the run-time.
> This is a follow-up works of SPARK-14743.



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