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  1. Hadoop Map/Reduce
  2. MAPREDUCE-2341

Map and Reduce task JVMs are hanging infinitely

    Details

    • Type: Bug
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: tasktracker
    • Labels:
      None
    • Environment:

      Linux

      Description

      Description:
      When launching Mapreduce application, the property mapred.job.reuse.jvm.num.tasks has been set to 0, as a result the task JVM(MAP or Reduce JVM) is hanging indefinitely and finally being killed by Tasktracker.

      Steps to Reproduce
      ------------------
      1) Set the mapred.job.reuse.jvm.num.tasks property in mapred-site.xml to 0
      2) Execute the wordcount example, child JVM is hanging indefinitely and finally killed by Tasktracker

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            • Assignee:
              Unassigned
              Reporter:
              kam_iitkgp Bhallamudi Venkata Siva Kamesh
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              Dates

              • Created:
                Updated: