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Posted to yarn-issues@hadoop.apache.org by "Sunil G (JIRA)" <ji...@apache.org> on 2015/07/17 12:31:04 UTC

[jira] [Created] (YARN-3937) Introducing REMOVE_CONTAINER_FROM_PREEMPTION event to notify Scheduler and AM when a container is no longer to be preempted

Sunil G created YARN-3937:
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             Summary: Introducing REMOVE_CONTAINER_FROM_PREEMPTION event to notify Scheduler and AM when a container is no longer to be preempted
                 Key: YARN-3937
                 URL: https://issues.apache.org/jira/browse/YARN-3937
             Project: Hadoop YARN
          Issue Type: Bug
          Components: capacityscheduler
    Affects Versions: 2.7.1
            Reporter: Sunil G
            Assignee: Sunil G


As discussed in YARN-3784, there are scenarios like few other applications released containers or same application has revoked its resource requests. In these cases, we may not have to preempt a container which would have been marked for preemption earlier. 
Introduce a new event to remove such containers if present in the to-be-preempted list of scheduler or inform AM about such a scenario.



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