Details

    • Type: Bug
    • Status: Resolved
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: 0.20.3, 0.21.1, 0.22.0
    • Fix Version/s: 0.22.0
    • Component/s: None
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      IFile assumes that when it has a codec it can always get a compressor. This fails when mapred.compress.map.output is true but the native libraries are not installed, resulting in an NPE:

      java.lang.NullPointerException
      at org.apache.hadoop.mapred.IFile$Writer.<init>(IFile.java:102)
      at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.sortAndSpill(MapTask.java:1198)
      at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.flush(MapTask.java:1091)
      at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:359)
      at org.apache.hadoop.mapred.MapTask.run(MapTask.java:307)
      at org.apache.hadoop.mapred.Child.main(Child.java:170)
      

      Let's make IFile handle this case by logging and using non-compressed streams.l

        Attachments

        1. mapred-1784-1.patch
          2 kB
          Eli Collins
        2. mapred-1784-2.patch
          5 kB
          Eli Collins

          Activity

            People

            • Assignee:
              eli Eli Collins
              Reporter:
              eli Eli Collins
            • Votes:
              0 Vote for this issue
              Watchers:
              1 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: