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https://issues.apache.org/jira/browse/DRILL-5123?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Suresh Ollala updated DRILL-5123:
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Reviewer: Kunal Khatua (was: Padma Penumarthy)
> Write query profile after sending final response to client to improve latency
> -----------------------------------------------------------------------------
>
> Key: DRILL-5123
> URL: https://issues.apache.org/jira/browse/DRILL-5123
> Project: Apache Drill
> Issue Type: Improvement
> Affects Versions: 1.8.0
> Reporter: Paul Rogers
> Assignee: Paul Rogers
> Priority: Minor
> Labels: ready-to-commit
> Fix For: 1.10.0
>
>
> In testing a particular query, I used a test setup that does not write to the
> "persistent store", causing query profiles to not be saved. I then changed
> the config to save them (to local disk). This produced about a 200ms
> difference in query run time as perceived by the client.
> I then moved writing the query profile _after_ sending the client the final
> message. This resulted in an approximately 100ms savings, as perceived by the
> client, in query run time on short (~3 sec.) queries.
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