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From "Wangda Tan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-7173) Container Update Backward compatibility fix for upgrades
Date Mon, 11 Sep 2017 17:52:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-7173?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16161680#comment-16161680
] 

Wangda Tan commented on YARN-7173:
----------------------------------

Thanks [~asuresh], 

+1 to latest patch, will commit today if no opposite opinions.

> Container Update Backward compatibility fix for upgrades
> --------------------------------------------------------
>
>                 Key: YARN-7173
>                 URL: https://issues.apache.org/jira/browse/YARN-7173
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Arun Suresh
>            Assignee: Arun Suresh
>         Attachments: YARN-7173.001.patch, YARN-7173-branch-2.001.patch
>
>
> This is based on discussions with [~leftnoteasy] in YARN-6979.
> In YARN-6979, the {{getContainersToDecrease()}} and {{addAllContainersToDecrease()}}
methods were removed from the NodeHeartbeatResponse (although the actual protobuf fields were
still retained). We need to ensure that for clusters that upgrade from 2.8.x to 2.9.0, the
decreased containers should also be sent to the NM.



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