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  1. Hadoop Map/Reduce
  2. MAPREDUCE-6096

SummarizedJob class NPEs with some jhist files

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    Details

    • Type: Bug
    • Status: Patch Available
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: jobhistoryserver
    • Labels:
    • Target Version/s:

      Description

      When I Parse the JobHistory in the HistoryFile,I use the Hadoop System's map-reduce-client-core project org.apache.hadoop.mapreduce.jobhistory.JobHistoryParser class and HistoryViewer$SummarizedJob to Parse the JobHistoryFile(Just Like job_1408862281971_489761-1410883171851_XXX.jhist)
      and it throw an Exception Just Like
      Exception in thread "pool-1-thread-1" java.lang.NullPointerException
      at org.apache.hadoop.mapreduce.jobhistory.HistoryViewer$SummarizedJob.<init>(HistoryViewer.java:626)
      at com.jd.hadoop.log.parse.ParseLogService.getJobDetail(ParseLogService.java:70)

      After I'm see the SummarizedJob class I find that attempt.getTaskStatus() is NULL , So I change the order of
      attempt.getTaskStatus().equals (TaskStatus.State.FAILED.toString()) to
      TaskStatus.State.FAILED.toString().equals(attempt.getTaskStatus())
      and it works well .

      So I wonder If we can change all attempt.getTaskStatus() after TaskStatus.State.XXX.toString() ?

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              • Assignee:
                piaoyu zhang zhangyubiao
                Reporter:
                piaoyu zhang zhangyubiao
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