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https://issues.apache.org/jira/browse/IMPALA-12325?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17749039#comment-17749039
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Zhi Tang commented on IMPALA-12325:
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That's a good idea. This is very helpful for users to analyze query performance.
> Query log with query level metrics
> ----------------------------------
>
> Key: IMPALA-12325
> URL: https://issues.apache.org/jira/browse/IMPALA-12325
> Project: IMPALA
> Issue Type: New Feature
> Components: Backend
> Reporter: Quanlong Huang
> Priority: Major
>
> Coordinators will dump query profiles to local disk in the log folder
> (configured by startup flag --profile_log_dir). However, it's inconvenient to
> parse the profiles for metric collector tools. It'd be useful if coordinators
> also dump a query log with query id, query string and some query level
> metrics, including all we show in the /queries WebUI, and some more useful
> metrics in the profile, e.g.
> * number of hosts
> * number of fragment instances
> * ClientFetchWaitTimer
> * Total/Avg of NetworkReceiveTime
> * Total/Avg of NetworkSendTime
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