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https://issues.apache.org/jira/browse/TEZ-3957?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16517604#comment-16517604
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Eric Wohlstadter commented on TEZ-3957:
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I realize we can't just keep adding Counters for everything, but this one seems
like it would be a very common use-case.
> Report TASK_DURATION_MILLIS as a Counter for completed tasks
> ------------------------------------------------------------
>
> Key: TEZ-3957
> URL: https://issues.apache.org/jira/browse/TEZ-3957
> Project: Apache Tez
> Issue Type: Improvement
> Reporter: Eric Wohlstadter
> Assignee: Eric Wohlstadter
> Priority: Major
>
> timeTaken is already being reported by {{TaskAttemptFinishedEvent}}, but not
> as a Counter.
> Combined with TEZ-3911, this provides min(timeTaken), max(timeTaken),
> avg(timeTaken).
> The value will be: {{finishTime - launchTime}}
>
>
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