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From: "Allen Wittenauer (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
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Subject: [jira] [Updated] (MAPREDUCE-6096) SummarizedJob class NPEs with
 some jhist files
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     [ https://issues.apache.org/jira/browse/MAPREDUCE-6096?page=3Dcom.atla=
ssian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Allen Wittenauer updated MAPREDUCE-6096:
----------------------------------------
    Summary: SummarizedJob class NPEs with some jhist files  (was: Summariz=
edJob class should be Improvment )

> SummarizedJob class NPEs with some jhist files
> ----------------------------------------------
>
>                 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
>            Assignee: zhangyubiao
>              Labels: easyfix, patch
>         Attachments: MAPREDUCE-6096.patch
>
>
> When I Parse  the JobHistory in the HistoryFile,I use the Hadoop System's=
  map-reduce-client-core project org.apache.hadoop.mapreduce.jobhistory.Job=
HistoryParser  class and HistoryViewer$SummarizedJob to Parse the JobHistor=
yFile(Just Like job_1408862281971_489761-1410883171851_XXX.jhist) =20
> and it throw an Exception Just Like=20
> Exception in thread "pool-1-thread-1" java.lang.NullPointerException
> =09at org.apache.hadoop.mapreduce.jobhistory.HistoryViewer$SummarizedJob.=
<init>(HistoryViewer.java:626)
> =09at com.jd.hadoop.log.parse.ParseLogService.getJobDetail(ParseLogServic=
e.java:70)
> After I'm see the SummarizedJob class I  find that attempt.getTaskStatus(=
) is NULL =EF=BC=8C So I change the order of=20
> attempt.getTaskStatus().equals (TaskStatus.State.FAILED.toString())  to=
=20
> TaskStatus.State.FAILED.toString().equals(attempt.getTaskStatus())=20
> and it works well .
> So I wonder If we can change all  attempt.getTaskStatus()  after TaskStat=
us.State.XXX.toString() ?



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