[jira] [Created] (YARN-4270) Limit application resource reservation on nodes for non-node/rack specific requests

[Arun Suresh (JIRA)]

Arun Suresh created YARN-4270:
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             Summary: Limit application resource reservation on nodes for 
non-node/rack specific requests
                 Key: YARN-4270
                 URL: https://issues.apache.org/jira/browse/YARN-4270
             Project: Hadoop YARN
          Issue Type: Bug
          Components: fairscheduler
            Reporter: Arun Suresh
            Assignee: Arun Suresh


I has been noticed that for off-switch requests, the FairScheduler reserves 
resources on all nodes. This could lead to the entire cluster being unavailable 
for all other applications.

Ideally, the reservations should be on a configurable number of nodes, default 
1.



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