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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

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Details

    • Bug
    • Status: Open
    • Major
    • Resolution: Unresolved
    • 0.20.1
    • None
    • jobtracker
    • 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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          is related to

          Improvement - An improvement or enhancement to an existing feature or task. MAPREDUCE-463 The job setup and cleanup tasks should be optional

          • Major - Major loss of function.
          • Closed

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              Unassigned Unassigned
              yhemanth Hemanth Yamijala
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              Dates

                Created:
                Updated: