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Date: Thu, 28 Sep 2017 17:03:00 +0000 (UTC)
From: "Arun Suresh (JIRA)" <jira@apache.org>
To: yarn-issues@hadoop.apache.org
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Subject: [jira] [Commented] (YARN-7248) NM returns new SCHEDULED container
 status to older clients
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archived-at: Thu, 28 Sep 2017 17:03:08 -0000


    [ https://issues.apache.org/jira/browse/YARN-7248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16184465#comment-16184465 ] 

Arun Suresh commented on YARN-7248:
-----------------------------------

I don't mind creating a branch-3.0 patch, but unfortunately, this will not cleanly apply to branch-3.0 without first getting in YARN-5292 (YARN-5216 and YARN-6059 might also be required) and YARN-7240. I was waiting for Andrew to get beta1 out before pushing those in.

> NM returns new SCHEDULED container status to older clients
> ----------------------------------------------------------
>
>                 Key: YARN-7248
>                 URL: https://issues.apache.org/jira/browse/YARN-7248
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: 2.9.0, 3.0.0-alpha2
>            Reporter: Jason Lowe
>            Assignee: Arun Suresh
>            Priority: Blocker
>         Attachments: YARN-7248.001.patch, YARN-7248.002.patch, YARN-7248.003.patch
>
>
> YARN-4597 added a new SCHEDULED container state and that state is returned to clients when the container is localizing, etc.  However the client may be running on an older software version that does not have the new SCHEDULED state which could lead the client to crash on the unexpected container state value or make incorrect assumptions like any state != NEW and != RUNNING must be COMPLETED which was true in the older version.


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