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https://issues.apache.org/jira/browse/MAPREDUCE-4721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13475501#comment-13475501
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Ravi Prakash commented on MAPREDUCE-4721:
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I would disagree with you there Bobby! If I'm on the task page, as a user, I
don't want to have to figure out that a task attempt was never launched by
matching with the job start time. I want to see unequivocally in readily
apparent letters "N/A" like the great Ravi meant for me to see, so that I know
that task attempts were never launched.
I suggest changing the AM to do the same. I'll upload a patch for that.
> Task startup time in JHS is same as job startup time.
> -----------------------------------------------------
>
> Key: MAPREDUCE-4721
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4721
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: jobhistoryserver
> Affects Versions: 0.23.3, 3.0.0, 2.0.2-alpha
> Reporter: Ravi Prakash
> Assignee: Ravi Prakash
> Attachments: MAPREDUCE-4721.patch
>
>
> As Bobby pointed out in
> https://issues.apache.org/jira/browse/MAPREDUCE-4711?focusedCommentId=13471696&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13471696
> In the Map and Reduce tasks page, it should print the earliest task attempt
> launch time as TaskImpl:getLaunchTime() does.
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