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Posted to mapreduce-issues@hadoop.apache.org by "zhangyubiao (JIRA)" <ji...@apache.org> on 2014/09/18 10:14:33 UTC

[jira] [Created] (MAPREDUCE-6096) SummarizedJob class should be

zhangyubiao created MAPREDUCE-6096:
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             Summary: SummarizedJob class should be 
                 Key: MAPREDUCE-6096
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6096
             Project: Hadoop Map/Reduce
          Issue Type: Improvement
          Components: jobhistoryserver
    Affects Versions: trunk
            Reporter: zhangyubiao


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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