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  1. Hadoop Map/Reduce
  2. MAPREDUCE-5

Shuffle's getMapOutput() fails with EofException, followed by IllegalStateException

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Not A Problem
    • Affects Version/s: 0.20.2, 1.1.1
    • Fix Version/s: None
    • Component/s: None
    • Labels:
      None
    • Environment:

      Sun Java 1.6.0_13, OpenSolaris, running on a SunFire 4150 (x64) 10 node cluster

      Description

      During the shuffle phase, I'm seeing a large sequence of the following actions:

      1) WARN org.apache.hadoop.mapred.TaskTracker: getMapOutput(attempt_200905181452_0002_m_000010_0,0) failed : org.mortbay.jetty.EofException
      2) WARN org.mortbay.log: Committed before 410 getMapOutput(attempt_200905181452_0002_m_000010_0,0) failed : org.mortbay.jetty.EofException
      3) ERROR org.mortbay.log: /mapOutput java.lang.IllegalStateException: Committed

      The map phase completes with 100%, and then the reduce phase crawls along with the above errors in each of the TaskTracker logs. None of the tasktrackers get lost. When I run non-data jobs like the 'pi' test from the example jar, everything works fine.

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        1. temp.rar
          897 kB
          xieguiming

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              • Assignee:
                Unassigned
                Reporter:
                gmporter George Porter
              • Votes:
                12 Vote for this issue
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                29 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: