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https://issues.apache.org/jira/browse/YARN-5823?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15637295#comment-15637295
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Konstantinos Karanasos commented on YARN-5823:
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Thanks for checking the patch, [~asuresh].
I like what you propose, but the problem would be that the opportunistic
allocation has to happen strictly before the guaranteed allocation for that to
work.
At the current patch, I am doing the guaranteed allocation first, since it is
non-blocking.
As you say, as part of YARN-5688 we should revisit the order of steps once both
guaranteed and opportunistic allocations will be asynchronous.
Makes sense?
> Update NMTokens in case of requests with only opportunistic containers
> ----------------------------------------------------------------------
>
> Key: YARN-5823
> URL: https://issues.apache.org/jira/browse/YARN-5823
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Konstantinos Karanasos
> Assignee: Konstantinos Karanasos
> Priority: Blocker
> Attachments: YARN-5823.001.patch, YARN-5823.002.patch
>
>
> At the moment, when an {{AllocateRequest}} contains only opportunistic
> {{ResourceRequests}}, the updated NMTokens are not properly added to the
> {{AllocateResponse}}.
> In such a case the AM does not get back the needed NMTokens that are required
> to start the opportunistic containers at the respective nodes.
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