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  1. Hadoop Map/Reduce
  2. MAPREDUCE-2219

JT should not try to remove mapred.system.dir during startup

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 0.22.0
    • 0.22.0
    • jobtracker
    • None
    • Reviewed

    Description

      During startup, the JT tries to clean up mapred.system.dir by recursively removing it and then recreating it. This requires that mapred.system.dir is inside a directory owned by the mapred user. For example, if set to /system/mapred then /system must be owned by the mapred account. This isn't documented properly and also seems unnecessary. Instead we can remove the contents of mapred.system.dir instead of the directory itself.

      Attachments

        1. mapreduce-2219.txt
          5 kB
          Todd Lipcon
        2. mapreduce-2219.2.txt
          5 kB
          Todd Lipcon

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            tlipcon Todd Lipcon
            tlipcon Todd Lipcon
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            Dates

              Created:
              Updated:
              Resolved: