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  1. Hadoop Map/Reduce
  2. MAPREDUCE-5490

MapReduce doesn't set the environment variable for children processes

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Won't Fix
    • Affects Version/s: 1.2.1
    • Fix Version/s: None
    • Component/s: None
    • Labels:

      Description

      Currently, MapReduce uses the command line argument to pass the classpath to the child. This breaks if the process forks a child that needs the same classpath. Such a case happens in Hive when it uses map-side joins. I propose that we make MapReduce in branch-1 use the CLASSPATH environment variable like YARN does.

        Attachments

        1. mr-5490.patch
          1 kB
          Owen O'Malley
        2. mr-5490.patch
          1 kB
          Owen O'Malley
        3. MAPREDUCE-5490.patch
          10 kB
          Jinghui Wang

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              • Assignee:
                owen.omalley Owen O'Malley
                Reporter:
                owen.omalley Owen O'Malley
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                • Created:
                  Updated:
                  Resolved: