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https://issues.apache.org/jira/browse/HIVE-18368?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16340806#comment-16340806
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Rui Li commented on HIVE-18368:
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Looks good to me overall. Left some minor comments on RB.

> Improve Spark Debug RDD Graph
> -----------------------------
>
>                 Key: HIVE-18368
>                 URL: https://issues.apache.org/jira/browse/HIVE-18368
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Spark
>            Reporter: Sahil Takiar
>            Assignee: Sahil Takiar
>            Priority: Major
>         Attachments: Completed Stages.png, HIVE-18368.1.patch, 
> HIVE-18368.2.patch, HIVE-18368.3.patch, Job Ids.png, Stage DAG 1.png, Stage 
> DAG 2.png
>
>
> The {{SparkPlan}} class does some logging to show the mapping between 
> different {{SparkTran}}, what shuffle types are used, and what trans are 
> cached. However, there is room for improvement.
> When debug logging is enabled the RDD graph is logged, but there isn't much 
> information printed about each RDD.
> We should combine both of the graphs and improve them. We could even make the 
> Spark Plan graph part of the {{EXPLAIN EXTENDED}} output.
> Ideally, the final graph shows a clear relationship between Tran objects, 
> RDDs, and BaseWorks. Edge should include information about number of 
> partitions, shuffle types, Spark operations used, etc.



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