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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4653) Document YARN security model from the perspective of Application Developers
Date Sat, 06 Feb 2016 18:23:40 GMT

    [ https://issues.apache.org/jira/browse/YARN-4653?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15135923#comment-15135923
] 

Steve Loughran commented on YARN-4653:
--------------------------------------

I know the apps need to sort out their own tokens; I've tried to explain that in the long
lived services bit.

 I'm wondering about: what about the tokens supplied to the container launch context for the
container to start at all?

> Document YARN security model from the perspective of Application Developers
> ---------------------------------------------------------------------------
>
>                 Key: YARN-4653
>                 URL: https://issues.apache.org/jira/browse/YARN-4653
>             Project: Hadoop YARN
>          Issue Type: Task
>          Components: site
>    Affects Versions: 2.7.2
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>         Attachments: YARN-4653-001.patch, YARN-4653-002.patch, YARN-4653-003.patch
>
>   Original Estimate: 2h
>  Remaining Estimate: 2h
>
> What YARN apps need to do for security today is generally copied direct from distributed
shell, with a bit of [ill-informed superstition|https://steveloughran.gitbooks.io/kerberos_and_hadoop/content/sections/yarn.html]
being the sole prose.
> We need a normative document in the YARN site covering
> # the needs for YARN security
> # token creation for AM launch
> # how the RM gets involved
> # token propagation on container launch
> # token renewal strategies
> # How to get tokens for other apps like HBase and Hive.
> # how to work under OOzie
> Perhaps the WritingYarnApplications.md doc is updated, otherwise why not just link to
the relevant bit of the distributed shell client on github for a guarantee of staying up to
date?



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