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https://issues.apache.org/jira/browse/YARN-7421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16227299#comment-16227299
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Haibo Chen commented on YARN-7421:
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Looks like ResourceRequests for container increase/promotion are always set to
GUARANTEED and
enforceExecutionType to true in ContainerUpdateContext.
createResourceReqForIncrease(). This may
not a an issue.
> Preserve execution type for containers to be increased by AM post YARN-1015
> ---------------------------------------------------------------------------
>
> Key: YARN-7421
> URL: https://issues.apache.org/jira/browse/YARN-7421
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: resourcemanager
> Affects Versions: YARN-1011
> Reporter: Haibo Chen
> Assignee: Haibo Chen
>
> From offline discussion with [~asuresh], if an AM tries to promote or
> increase a container whose enforceExecutionType is set to false, the
> scheduler may, in the presence of oversubscription, allocate an
> OPPORTUNISTIC container. This should not happen given the contract we have in
> container update API.
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