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https://issues.apache.org/jira/browse/YARN-8505?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16541078#comment-16541078
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Tao Yang commented on YARN-8505:
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[~bibinchundatt], Thanks for your replay.
Yes, this issue will change the old behavior. We just encounter a scene that
only specified partitions(a/b) has NMs (None in default partition) in a
cluster, our users want to submit an unmanaged AM which will request resources
from partition a or b but it won't run because of the resource limitation in
default partition. Users think that unmanaged AM's resource isn't got from YARN
so that it should not be limited because of resource and feel puzzled at this
limitation. Is current limitation reasonable? I think we need a discuss for
that. cc: [~leftnoteasy], [~cheersyang], [~sunilg]
> AMLimit and userAMLimit check should be skipped for unmanaged AM
> ----------------------------------------------------------------
>
> Key: YARN-8505
> URL: https://issues.apache.org/jira/browse/YARN-8505
> Project: Hadoop YARN
> Issue Type: Bug
> Components: capacityscheduler
> Affects Versions: 3.2.0, 2.9.2
> Reporter: Tao Yang
> Assignee: Tao Yang
> Priority: Major
> Attachments: YARN-8505.001.patch
>
>
> AMLimit and userAMLimit check in LeafQueue#activateApplications should be
> skipped for unmanaged AM whose resource is not taken from YARN cluster.
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