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https://issues.apache.org/jira/browse/YARN-4165?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Weiwei Yang resolved YARN-4165.
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Resolution: Invalid
> An outstanding container request makes all nodes to be reserved causing all
> jobs pending
> ----------------------------------------------------------------------------------------
>
> Key: YARN-4165
> URL: https://issues.apache.org/jira/browse/YARN-4165
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: capacity scheduler, resourcemanager, scheduler
> Affects Versions: 2.7.1
> Reporter: Weiwei Yang
> Assignee: Weiwei Yang
>
> We have a long running service in YARN, it has an outstanding container
> request that YARN cannot satisfy (require more memory that nodemanager can
> supply). Then YARN reserves all nodes for this application, when I submit
> other jobs (require relative small memory that nodemanager can supply), all
> jobs are pending because YARN skips scheduling containers on the nodes that
> have been reserved.
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