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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-5829) FS preemption should reserve a node before considering containers on it for preemption
Date Thu, 03 Nov 2016 20:44:58 GMT
Karthik Kambatla created YARN-5829:
--------------------------------------

             Summary: FS preemption should reserve a node before considering containers on
it for preemption
                 Key: YARN-5829
                 URL: https://issues.apache.org/jira/browse/YARN-5829
             Project: Hadoop YARN
          Issue Type: Sub-task
          Components: fairscheduler
            Reporter: Karthik Kambatla


FS preemption evaluates nodes for preemption, and subsequently preempts identified containers.
If this node is not reserved for a specific application, any other application could be allocated
resources on this node. 

Reserving the node for the starved application before preempting containers would help avoid
this.



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