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  1. Hadoop Map/Reduce
  2. MAPREDUCE-5931

Validate SleepJob command line parameters

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: 1.2.1, 2.4.0
    • Fix Version/s: 2.6.0
    • Component/s: test
    • Labels:
      None
    • Target Version/s:
    • Hadoop Flags:
      Reviewed

      Description

      This is a minor issue per se. I had a typo in my script specifying a negative number of reducers for the SleepJob. It results in the exception that is far from the root cause, and appeared as a serious issue with the map-side sort.

      2014-06-17 21:42:48,072 INFO [main] org.apache.hadoop.mapred.MapTask: Ignoring exception during close for org.apache.hadoop.mapred.MapTask$NewOutputCollector@972141f
      java.lang.NullPointerException
      	at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.flush(MapTask.java:1447)
      	at org.apache.hadoop.mapred.MapTask$NewOutputCollector.close(MapTask.java:700)
      	at org.apache.hadoop.mapred.MapTask.closeQuietly(MapTask.java:1990)
      	at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:774)
      	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:340)
      	at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:173)
      	at java.security.AccessController.doPrivileged(Native Method)
      	at javax.security.auth.Subject.doAs(Subject.java:415)
      	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1626)
      	at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:168)
      2014-06-17 21:42:48,075 WARN [main] org.apache.hadoop.mapred.YarnChild: Exception running child : java.lang.IllegalArgumentException
      	at java.nio.ByteBuffer.allocate(ByteBuffer.java:330)
      	at org.apache.hadoop.mapred.SpillRecord.<init>(SpillRecord.java:51)
      	at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.mergeParts(MapTask.java:1824)
      	at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.flush(MapTask.java:1484)
      	at org.apache.hadoop.mapred.MapTask$NewOutputCollector.close(MapTask.java:700)
      	at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:770)
      	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:340)
      	at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:173)
      	at java.security.AccessController.doPrivileged(Native Method)
      	at javax.security.auth.Subject.doAs(Subject.java:415)
      	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1626)
      	at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:168)
      

        Attachments

        1. MAPREDUCE-5931.v04.patch
          18 kB
          Gera Shegalov
        2. MAPREDUCE-5931.v03.patch
          18 kB
          Gera Shegalov
        3. MAPREDUCE-5931.v02.patch
          3 kB
          Gera Shegalov
        4. MAPREDUCE-5931.v01.patch
          2 kB
          Gera Shegalov

          Activity

            People

            • Assignee:
              jira.shegalov Gera Shegalov
              Reporter:
              jira.shegalov Gera Shegalov
            • Votes:
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              Dates

              • Created:
                Updated:
                Resolved: