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https://issues.apache.org/jira/browse/HIVE-18525?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16408816#comment-16408816
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Sahil Takiar commented on HIVE-18525:
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[~xuefuz], [~aihuaxu], [~belugabehr] any thoughts on this feature? I've
attached multiple screenshots to show what the Web UI looks like.
Some things to note:
* Not sure whether to make this feature configurable, and not sure whether to
turn it on or off
* This change is mainly geared to users who use the Spark Web UI to visualize /
debug their queries
* Spark SQL has a similar-ish feature, so ideally the Web UI should be able to
handle the extra per-query info
* The patch is still a WIP, I need to profile how long it takes for the explain
plan to get generated
> Add explain plan to Hive on Spark Web UI
> ----------------------------------------
>
> Key: HIVE-18525
> URL: https://issues.apache.org/jira/browse/HIVE-18525
> Project: Hive
> Issue Type: Sub-task
> Components: Spark
> Reporter: Sahil Takiar
> Assignee: Sahil Takiar
> Priority: Major
> Attachments: HIVE-18525.1.patch, HIVE-18525.2.patch,
> Job-Page-Collapsed.png, Job-Page-Expanded.png, Map-Explain-Plan.png,
> Reduce-Explain-Plan.png
>
>
> More of an investigation JIRA. The Spark UI has a "long description" of each
> stage in the Spark DAG. Typically one stage in the Spark DAG corresponds to
> either a {{MapWork}} or {{ReduceWork}} object. It would be useful if the long
> description contained the explain plan of the corresponding work object.
> I'm not sure how much additional overhead this would introduce. If not the
> full explain plan, then maybe a modified one that just lists out all the
> operator tree along with each operator name.
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