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https://issues.apache.org/jira/browse/YARN-2829?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14544317#comment-14544317
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Jian He commented on YARN-2829:
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I think it's now already the case that attempts are added into scheduler
synchronously.
closing this. please re-open if disagree.
> After restart, RM should create running-attempt before AM register
> ------------------------------------------------------------------
>
> Key: YARN-2829
> URL: https://issues.apache.org/jira/browse/YARN-2829
> Project: Hadoop YARN
> Issue Type: Bug
> Components: resourcemanager
> Reporter: Vinod Kumar Vavilapalli
> Assignee: Vinod Kumar Vavilapalli
>
> Found this while reviewing YARN-2823.
> bq. I think there is more that we can and should do but in the near future.
> In the non-restart control flow, AMs cannot register till the RM knows about
> the attempt (obviously), this condition is invalidated after restart. Will
> file a ticket.
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