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  1. Hadoop Map/Reduce
  2. MAPREDUCE-1099

Setup and cleanup tasks could affect job latency if they are caught running on bad nodes

    Details

    • Type: Bug
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: 0.20.1
    • Fix Version/s: None
    • Component/s: jobtracker
    • Labels:
      None

      Description

      We found cases on our clusters where a setup task got scheduled on a bad node and took upwards of several minutes to run, adversely affecting job runtimes. Speculation did not help here as speculation is not used for setup tasks. I suspect the same could happen for cleanup tasks as well.

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              • Assignee:
                Unassigned
                Reporter:
                yhemanth Hemanth Yamijala
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                Dates

                • Created:
                  Updated: