Weiwei Yang created YARN-4165:
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Summary: 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: resourcemanager, scheduler
Affects Versions: 2.7.1
Reporter: Weiwei Yang
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.
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