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From "Junping Du (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5184) Fix up incompatible changes introduced on ContainerStatus and NodeReport
Date Wed, 30 Nov 2016 03:31:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-5184?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15707393#comment-15707393
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Junping Du commented on YARN-5184:
----------------------------------

Assign to [~sjlee0] who actively working on this. I think there is no concern for current
change on branch-2/branch-2.8 and the only concern is if we want these changes in trunk/branch-3.
Given branch-2.8 will be out soon, shall we file a separated JIRA for further discussion on
what is right thing to do on trunk?

> Fix up incompatible changes introduced on ContainerStatus and NodeReport
> ------------------------------------------------------------------------
>
>                 Key: YARN-5184
>                 URL: https://issues.apache.org/jira/browse/YARN-5184
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: api
>    Affects Versions: 2.8.0, 2.9.0
>            Reporter: Karthik Kambatla
>            Assignee: Sangjin Lee
>            Priority: Blocker
>         Attachments: YARN-5184-branch-2.8.poc.patch, YARN-5184-branch-2.poc.patch
>
>
> YARN-2882 and YARN-5430 broke compatibility by adding abstract methods to ContainerStatus.
Since ContainerStatus is a Public-Stable class, adding abstract methods to this class breaks
any extensions. 
> To fix this, we should add default implementations to these new methods and not leave
them as abstract. 



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