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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-19143) API in Spark for distributing new delegation tokens (Improve delegation token handling in secure clusters)
Date Fri, 19 Oct 2018 09:01:00 GMT

    [ https://issues.apache.org/jira/browse/SPARK-19143?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16656476#comment-16656476
] 

Steve Loughran commented on SPARK-19143:
----------------------------------------

I'm looking at this as I add DTs into S3A (HADOOP-14556) and seeing how downstream stuff picks
this up. I'm looking at the issue of "can a user submit a new set of tokens from their machine
and have that propagate", especially in the context of "not giving a long-lived cluster my
keytab because IT won't give it to me"

Has anyone done anything recent here.

> API in Spark for distributing new delegation tokens (Improve delegation token handling
in secure clusters)
> ----------------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-19143
>                 URL: https://issues.apache.org/jira/browse/SPARK-19143
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core, YARN
>    Affects Versions: 2.0.2, 2.1.0
>            Reporter: Ruslan Dautkhanov
>            Priority: Major
>
> Spin off from SPARK-14743 and comments chain in [recent comments| https://issues.apache.org/jira/browse/SPARK-5493?focusedCommentId=15802179&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15802179]
in SPARK-5493.
> Spark currently doesn't have a way for distribution new delegation tokens. Quoting [~vanzin]
from SPARK-5493 
> {quote}
> IIRC Livy doesn't yet support delegation token renewal. Once it reaches the TTL, the
session is unusable.
> There might be ways to hack support for that without changes in Spark, but I'd like to
see a proper API in Spark for distributing new delegation tokens. I mentioned that in SPARK-14743,
but although that bug is closed, that particular feature hasn't been implemented yet.
> {quote}
> Other thoughts?



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