Weiwei Yang created YARN-4165:

             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 

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