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https://issues.apache.org/jira/browse/MAPREDUCE-4721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13475512#comment-13475512
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Ravi Prakash commented on MAPREDUCE-4721:
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Allow me to recant what I said! In the AM, when the task startup time is the
same as the job startup time, the status says "Scheduled". So its indicative
that it has been "Scheduled" at (that job) startup time. However, in a JHS, the
task has already either finished, or failed/killed. In case the task attempt
was never launched, I want to see N/A. If an attempt was launched (but failed),
I want to see the start time of the first attempt.
Can we please commit the patch as is?
> 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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