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https://issues.apache.org/jira/browse/SPARK-27937?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-27937:
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    Assignee:     (was: Apache Spark)

> Revert changes introduced as a part of Automatic namespace discovery 
> [SPARK-24149]
> ----------------------------------------------------------------------------------
>
>                 Key: SPARK-27937
>                 URL: https://issues.apache.org/jira/browse/SPARK-27937
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>    Affects Versions: 2.4.3
>            Reporter: Dhruve Ashar
>            Priority: Major
>
> Spark fails to launch for a valid deployment of HDFS while trying to get 
> tokens for a logical nameservice instead of an actual namenode (with HDFS 
> federation enabled). 
> On inspecting the source code closely, it is unclear why we were doing it and 
> based on the context from SPARK-24149, it solves a very specific use case of 
> getting the tokens for only those namenodes which are configured for HDFS 
> federation in the same cluster. IMHO these are better left to the user to 
> specify explicitly.



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