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Posted to dev@flink.apache.org by "Till Rohrmann (JIRA)" <ji...@apache.org> on 2018/05/28 15:38:00 UTC

[jira] [Created] (FLINK-9457) Cancel container requests when cancelling pending slot allocations

Till Rohrmann created FLINK-9457:
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             Summary: Cancel container requests when cancelling pending slot allocations
                 Key: FLINK-9457
                 URL: https://issues.apache.org/jira/browse/FLINK-9457
             Project: Flink
          Issue Type: Improvement
          Components: ResourceManager, YARN
    Affects Versions: 1.5.0
            Reporter: Till Rohrmann
             Fix For: 1.6.0, 1.5.1


When cancelling a pending slot allocation request on the {{ResourceManager}}, then we should also check whether we still need all the requested containers. If it turns out that we no longer need them, then we should try to cancel the unnecessary container requests. That way Flink will be, for example, a better Yarn citizen which quickly releases resources and resource requests if no longer needed.



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