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  1. Hadoop Common
  2. HADOOP-1042

Improve the handling of failed map output fetches

    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 0.11.2
    • Fix Version/s: 0.12.0
    • Component/s: None
    • Labels:
      None

      Description

      Currently, whenever fetch of a map output fails the corresponding MapOutputLocation is added to a List datastructure for later retrial. But, if the failure was due to a lost task, the entry that was added is not deleted. For such cases, unnecessary retrials will happen. This situation should be prevented.

        Attachments

        1. 1042.patch
          6 kB
          Devaraj Das
        2. 1042.new.patch
          6 kB
          Devaraj Das

          Activity

            People

            • Assignee:
              devaraj Devaraj Das
              Reporter:
              devaraj Devaraj Das
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              Dates

              • Created:
                Updated:
                Resolved: