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From "Chandni Singh (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-6168) Restarted RM may not inform AM about all existing containers
Date Mon, 27 Nov 2017 18:15:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-6168?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16267173#comment-16267173

Chandni Singh commented on YARN-6168:

Test and findbug failure are not related to the change

> Restarted RM may not inform AM about all existing containers
> ------------------------------------------------------------
>                 Key: YARN-6168
>                 URL: https://issues.apache.org/jira/browse/YARN-6168
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Billie Rinaldi
>            Assignee: Chandni Singh
>         Attachments: YARN-6168.001.patch, YARN-6168.002.patch, YARN-6168.003.patch, YARN-6168.004.patch
> There appears to be a race condition when an RM is restarted. I had a situation where
the RMs and AM were down, but NMs and app containers were still running. When I restarted
the RM, the AM restarted, registered with the RM, and received its list of existing containers
before the NMs had reported all of their containers to the RM. The AM was only told about
some of the app's existing containers.

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