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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5310) AM restart failed because of the expired HDFS delegation tokens
Date Tue, 05 Jul 2016 05:36:10 GMT

    [ https://issues.apache.org/jira/browse/YARN-5310?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15362035#comment-15362035
] 

Allen Wittenauer commented on YARN-5310:
----------------------------------------

That's basically introducing a security hole.

> AM restart failed because of the expired HDFS delegation tokens
> ---------------------------------------------------------------
>
>                 Key: YARN-5310
>                 URL: https://issues.apache.org/jira/browse/YARN-5310
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: yarn
>            Reporter: Xianyin Xin
>            Assignee: Xianyin Xin
>
> For a long running AM, it would get failed when restart because the token in ApplicationSubmissionContext
expires. We should update it when we get a new delegation token on behalf of the user.



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