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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 updated YARN-4165:
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Description: 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. (was: We have a long running service in YARN,
it has a 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.)
> 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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