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

["Marcelo Vanzin (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-25857?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Marcelo Vanzin resolved SPARK-25857.
------------------------------------
       Resolution: Fixed
    Fix Version/s: 3.0.0

Issue resolved by pull request 23348
[https://github.com/apache/spark/pull/23348]

> 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
>            Assignee: Marcelo Vanzin
>            Priority: Minor
>             Fix For: 3.0.0
>
>
> 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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