Details

    • Type: Sub-task Sub-task
    • Status: Resolved
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: scheduler
    • Labels:
      None

      Description

      JIRA for delay scheduling component.

        Activity

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        NO NAME added a comment -

        Attached is a patch to implement delay scheduling in MR2, similar to how delay scheduling works in the MR1 Fair Scheduler.

        This patch allows schedulers to triage locality levels from node-local, to rack-local, to off-switch requests over time. In the Fair schedulers, users can configure a threshold to dictate when this relaxation happens.

        The Capacity Scheduler is left untouched (it currently uses a separate heuristic to failover to off-switch scheduling).

        This patch assumes the patch attached to MAPREDUCE-3600 has already been applied.

        Show
        NO NAME added a comment - Attached is a patch to implement delay scheduling in MR2, similar to how delay scheduling works in the MR1 Fair Scheduler. This patch allows schedulers to triage locality levels from node-local, to rack-local, to off-switch requests over time. In the Fair schedulers, users can configure a threshold to dictate when this relaxation happens. The Capacity Scheduler is left untouched (it currently uses a separate heuristic to failover to off-switch scheduling). This patch assumes the patch attached to MAPREDUCE-3600 has already been applied.
        Hide
        NO NAME added a comment -

        Fixed with parent ticket.

        Show
        NO NAME added a comment - Fixed with parent ticket.

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            Dates

            • Created:
              Updated:
              Resolved:

              Development