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From "Jian He (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4032) Corrupted state from a previous version can still cause RM to fail with NPE due to same reasons as YARN-2834
Date Sat, 19 Dec 2015 21:04:46 GMT

    [ https://issues.apache.org/jira/browse/YARN-4032?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15065532#comment-15065532
] 

Jian He commented on YARN-4032:
-------------------------------

Hi [~kasha], YARN-4347 may have fixed this inconsistent issue that may cause RM to crash with
NPE.

> Corrupted state from a previous version can still cause RM to fail with NPE due to same
reasons as YARN-2834
> ------------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-4032
>                 URL: https://issues.apache.org/jira/browse/YARN-4032
>             Project: Hadoop YARN
>          Issue Type: Bug
>    Affects Versions: 2.7.1
>            Reporter: Anubhav Dhoot
>            Assignee: Jian He
>            Priority: Critical
>         Attachments: YARN-4032.prelim.patch
>
>
> YARN-2834 ensures in 2.6.0 there will not be any inconsistent state. But if someone is
upgrading from a previous version, the state can still be inconsistent and then RM will still
fail with NPE after upgrade to 2.6.0.



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