[jira] [Commented] (SPARK-25857) Document delegation token code in Spark

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-25857?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16724570#comment-16724570 ] 

ASF GitHub Bot commented on SPARK-25857:
----------------------------------------

vanzin opened a new pull request #23348: [SPARK-25857][core] Add developer documentation regarding delegation tokens.
URL: https://github.com/apache/spark/pull/23348
 
 
   

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> Document delegation token code in Spark
> ---------------------------------------
>
>                 Key: SPARK-25857
>                 URL: https://issues.apache.org/jira/browse/SPARK-25857
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>    Affects Versions: 3.0.0
>            Reporter: Marcelo Vanzin
>            Priority: Minor
>
> By this I mean not user documentation, but documenting the functionality provided in the {{org.apache.spark.deploy.security}} and related packages, so that other developers making changes there can refer to it.
> It seems to be a source of confusion every time somebody needs touch that code, so it would be good to have a document explaining how it all works, including how it's hooked up to different resource managers.



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