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From "Karam Singh (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3346) Rumen LoggedTaskAttempt getHostName call returns hostname as null
Date Fri, 04 Nov 2011 13:17:00 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3346?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13143989#comment-13143989
] 

Karam Singh commented on MAPREDUCE-3346:
----------------------------------------

tested the Patch metioned by Amar
Corner case of unsuccessful tasks still exists. But that is not blocker.

                
> Rumen LoggedTaskAttempt  getHostName call returns hostname as null
> ------------------------------------------------------------------
>
>                 Key: MAPREDUCE-3346
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3346
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: tools/rumen
>    Affects Versions: 0.23.0
>            Reporter: Karam Singh
>            Assignee: Amar Kamat
>            Priority: Blocker
>         Attachments: BZ-4980655-v1.1.patch
>
>
> After MAPREDUCE-3035 and MAPREDUCE-3317
> Now MRV2 job history contains hostName and rackName.
> when rumen trace builder is ran on jobhistory, its generated trace contains hostname
in form of 
> hostName : /raclname/hostname
> But getHostName for LoggedTaskAttempt returns hostname as null
> Seems that TraceBuilder is setting hostName properly but JobTraceReader is not able read
it.

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