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  1. Hadoop Map/Reduce
  2. MAPREDUCE-5110

Kill task early in case of long task launch delays

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Won't Fix
    • 1.1.2
    • None
    • tasktracker
    • None

    Description

      If a task takes too long to launch, the JT expires the task and schedules another attempt. The earlier attempt can start after the later attempt leading to two parallel attempts running at the same time. This is particularly an issue if the user turns off speculation and expects a single attempt of a task to run at any point in time.

      Attachments

        1. mr-5110-tt-only.patch
          4 kB
          Karthik Kambatla
        2. mr-5110-half-tt-expiry.patch
          3 kB
          Karthik Kambatla
        3. mr-5110.patch
          5 kB
          Karthik Kambatla
        4. mr-5110.patch
          5 kB
          Karthik Kambatla
        5. expose-mr-5110.patch
          1 kB
          Karthik Kambatla

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            kasha Karthik Kambatla
            kasha Karthik Kambatla
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              Updated:
              Resolved:

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