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From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-263) task status should include timestamps for when a job transitions
Date Thu, 10 Aug 2006 21:29:15 GMT
    [ http://issues.apache.org/jira/browse/HADOOP-263?page=comments#action_12427353 ] 
            
Owen O'Malley commented on HADOOP-263:
--------------------------------------

A couple of points:
   1. I'd express the start times as absolute times and the others as relative times in hours,
minutes and seconds.
   2. the web ui shouldn't include shuffle & sort time columns for map tasks.
   3. "blank" times should be written as "&nbsp;" in the html so that the browsers make
the box for the cell.
   4. usually, when you are creating format objects, you keep them in static fields rather
than creating them on each call.
   5. the start times should be when the task starts running not when the job is submitted
   6. the shuffle time is never being set

> task status should include timestamps for when a job transitions
> ----------------------------------------------------------------
>
>                 Key: HADOOP-263
>                 URL: http://issues.apache.org/jira/browse/HADOOP-263
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: mapred
>    Affects Versions: 0.2.1
>            Reporter: Owen O'Malley
>         Assigned To: Sanjay Dahiya
>             Fix For: 0.6.0
>
>         Attachments: patch.txt, patch.txt, patch.txt
>
>
> It would help users to understand what happened if the task status included information
about when the task transitioned:
> Map:
>    started
>    finished
> Reduce:
>    started
>    shuffle finished
>    sort finished
>    finished

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