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  1. Tajo
  2. TAJO-647

Work unbalance on disk scheduling of DefaultScheduler

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 0.8.0
    • Fix Version/s: 0.8.0, 0.9.0
    • Component/s: Resource Manager
    • Labels:
      None

      Description

      The main problem is that localAllocation does not find next lowest volume. and it will assign to remote in rack.
      We should control the remote tasks.

      • Leaf scheduling priorities
        1. tasks in a volume of host
        2. unknown disk, non-splitable in local host
        3. remote tasks in rack. (consider the remaining tasks)
        4. random remote tasks. (tail concurrency control of scheduled tasks)

        Attachments

        1. TAJO-647.patch
          21 kB
          Jinho Kim
        2. TAJO-647_20140313_17:53:23.patch
          29 kB
          Jinho Kim
        3. TAJO-647_20140307_14:36:35.patch
          25 kB
          Jinho Kim
        4. TAJO-647_140312_145207.patch
          28 kB
          Hyunsik Choi

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              • Assignee:
                jhkim Jinho Kim
                Reporter:
                jhkim Jinho Kim
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                Dates

                • Created:
                  Updated:
                  Resolved: