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From "Jian He (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-6920) Fix TestNMClient failure due to YARN-6706
Date Fri, 04 Aug 2017 06:19:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-6920?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16114006#comment-16114006
] 

Jian He commented on YARN-6920:
-------------------------------

I see, thanks for the explanation, so, it's guaranteed the Guaranteed container will be started.

But I was wondering if this will cause unnecessary churn. Like:
1) CONTAINER_COMPLETED sent
2) opportunistic container started.
3) SCHEDULE_CONTAINER sent
3) opportunistic killed and make room for the original upgrading container.
If above is possible occur, we can eliminate this by skipping checking if should launch opportunistic
container, and container upgrade can happen more smoothly.

> Fix TestNMClient failure due to YARN-6706
> -----------------------------------------
>
>                 Key: YARN-6920
>                 URL: https://issues.apache.org/jira/browse/YARN-6920
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Arun Suresh
>            Assignee: Arun Suresh
>         Attachments: YARN-6920.001.patch, YARN-6920.002.patch, YARN-6920.003.patch, YARN-6920.004.patch
>
>
> Looks like {{TestNMClient}} has been failing for a while. Opening this JIRA to track
the fix.



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