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https://issues.apache.org/jira/browse/PHOENIX-2715?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16490233#comment-16490233
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Ankit Singhal commented on PHOENIX-2715:
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bq. Looking at the code I see the default is OFF, so something is not working 
right, unless I misunderstood something.
By mistake, I have committed bin/hbase-site.xml with logging.level to DEBUG. 
Let me remove that.
{code}
https://github.com/apache/phoenix/blob/master/bin/hbase-site.xml
{code} 

bq. Everything but OFF is a bad default, IMHO.
Any suggestions, It will be an easy change before I commit addendum for 
hbase-site.xml?

> Query Log
> ---------
>
>                 Key: PHOENIX-2715
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-2715
>             Project: Phoenix
>          Issue Type: New Feature
>            Reporter: Nick Dimiduk
>            Assignee: Ankit Singhal
>            Priority: Major
>             Fix For: 4.14.0, 5.0.0
>
>         Attachments: PHOENIX-2715.patch, PHOENIX-2715_master.patch, 
> PHOENIX-2715_master_V1.patch, PHOENIX-2715_master_V2.patch
>
>
> One useful feature of other database systems is the query log. It allows the 
> DBA to review the queries run, who's run them, time taken, &c. This serves 
> both as an audit and also as a source of "ground truth" for performance 
> optimization. For instance, which columns should be indexed. It may also 
> serve as the foundation for automated performance recommendations/actions.
> What queries are being run is the first piece. Have this data tied into 
> tracing results and perhaps client-side metrics (PHOENIX-1819) becomes very 
> useful.
> This might take the form of clients writing data to a new system table, but 
> other implementation suggestions are welcome.



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