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  1. Hadoop YARN
  2. YARN-3388

Allocation in LeafQueue could get stuck because DRF calculator isn't well supported when computing user-limit

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.6.0, 2.8.0, 2.7.2, 3.0.0-alpha1
    • Fix Version/s: 2.8.0, 3.0.0-alpha1
    • Component/s: capacityscheduler
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      When there are multiple active users in a queue, it should be possible for those users to make use of capacity up-to max_capacity (or close). The resources should be fairly distributed among the active users in the queue. This works pretty well when there is a single resource being scheduled. However, when there are multiple resources the situation gets more complex and the current algorithm tends to get stuck at Capacity.

      Example illustrated in subsequent comment.

        Attachments

        1. YARN-3388-v0.patch
          5 kB
          Nathan Roberts
        2. YARN-3388-v1.patch
          18 kB
          Nathan Roberts
        3. YARN-3388-v2.patch
          25 kB
          Nathan Roberts
        4. YARN-3388-v3.patch
          31 kB
          Nathan Roberts
        5. YARN-3388-v4.patch
          30 kB
          Nathan Roberts
        6. YARN-3388-v5.patch
          31 kB
          Nathan Roberts
        7. YARN-3388-v6.patch
          31 kB
          Nathan Roberts
        8. YARN-3388-v7.patch
          30 kB
          Nathan Roberts

          Activity

            People

            • Assignee:
              nroberts Nathan Roberts
              Reporter:
              nroberts Nathan Roberts
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              Dates

              • Created:
                Updated:
                Resolved: