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