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  1. Hadoop Common
  2. HADOOP-1183

MapTask completion not recorded properly at the Reducer's end

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Details

    • Bug
    • Status: Closed
    • Critical
    • Resolution: Duplicate
    • 0.12.2
    • 0.13.0
    • None
    • None

    Description

      A couple of reducers were continuously trying to fetch map outputs from a lost tasktracker. Although the tasks running on that lost TT successfully reexecuted elsewhere, the Reducers' tasktrackers didn't correctly note those events.

      Attachments

        1. 1183.patch
          6 kB
          Devaraj Das
        2. 1183.new1.patch
          9 kB
          Devaraj Das
        3. 1183.new.patch
          7 kB
          Devaraj Das

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. MAPREDUCE-79 Ignored IOExceptions from MapOutputLocation.java:getFile lead to hung reduces

          • Major - Major loss of function.
          • Open

          Activity

            People

              ddas Devaraj Das
              ddas Devaraj Das
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              Dates

                Created:
                Updated:
                Resolved: