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  1. Hadoop YARN
  2. YARN-2531

CGroups - Admins should be allowed to enforce strict cpu limits

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 2.6.0
    • None
    • None
    • Reviewed

    Description

      From YARN-2440 -

      The other dimension to this is determinism w.r.t performance. Limiting to allocated cores overall (as well as per container later) helps orgs run workloads and reason about them deterministically. One of the examples is benchmarking apps, but deterministic execution is a desired option beyond benchmarks too.

      It would be nice to have an option to let admins to enforce strict cpu limits for apps for things like benchmarking, etc. By default this flag should be off so that containers can use available cpu but admin can turn the flag on to determine worst case performance, etc.

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            vvasudev Varun Vasudev Assign to me
            vvasudev Varun Vasudev
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