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  1. Hadoop Map/Reduce
  2. MAPREDUCE-2531

org.apache.hadoop.mapred.jobcontrol.getAssignedJobID throw class cast exception

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Blocker
    • Resolution: Fixed
    • Affects Version/s: 0.22.0
    • Fix Version/s: 0.22.0, 0.23.0
    • Component/s: client
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      When using a combination of the mapred and mapreduce APIs (PIG) it is possible to have the following exception

      Caused by: java.lang.ClassCastException: org.apache.hadoop.mapreduce.JobID cannot be cast to
      org.apache.hadoop.mapred.JobID
      at org.apache.hadoop.mapred.jobcontrol.Job.getAssignedJobID(Job.java:71)
      at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher.launchPig(MapReduceLauncher.java:239)
      at org.apache.pig.PigServer.launchPlan(PigServer.java:1325)
      ... 29 more

      This is because the JobID is just downcast. It should be calling JobID.downgrade

        Attachments

        1. MR-2531-V1-trunk.patch
          2 kB
          Robert Joseph Evans
        2. MR-2531-yarn-v1.patch
          2 kB
          Robert Joseph Evans

          Activity

            People

            • Assignee:
              revans2 Robert Joseph Evans
              Reporter:
              revans2 Robert Joseph Evans
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              Dates

              • Created:
                Updated:
                Resolved: