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https://issues.apache.org/jira/browse/YARN-7248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16183654#comment-16183654
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Junping Du commented on YARN-7248:
----------------------------------
I think we should fix this in 3.0-beta also given rolling upgrade from 2.x is
the goal. CC [~andrew.wang].
> 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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