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https://issues.apache.org/jira/browse/IMPALA-13137?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17853096#comment-17853096
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Surya Hebbar commented on IMPALA-13137:
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It was confirmed in the meeting, that the expected column was the
{{{}ClientFetchWaitTimer{}}}'s value and not the difference between "First row
fetched" and "Last row fetched".
> Add additional client fetch metrics columns to the queries page
> ---------------------------------------------------------------
>
> Key: IMPALA-13137
> URL: https://issues.apache.org/jira/browse/IMPALA-13137
> Project: IMPALA
> Issue Type: New Feature
> Components: Backend, be
> Reporter: Surya Hebbar
> Assignee: Surya Hebbar
> Priority: Major
> Attachments: completed_query.png, in_flight_query_1.png,
> in_flight_query_2.png, in_flight_query_3.png, very_short_fetch_timer.png
>
>
> For helping users to better understand query execution times, it would be
> helpful to add the following columns on the queries page.
> * First row fetched time - Time taken for the client to fetch the first row
> * Client fetch wait time - Time taken for the client to fetch all rows
> Additional details -
> https://jira.cloudera.com/browse/DWX-18295
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