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https://issues.apache.org/jira/browse/SPARK-30041?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan resolved SPARK-30041.
---------------------------------
    Fix Version/s: 3.0.0
       Resolution: Fixed

Issue resolved by pull request 26675
[https://github.com/apache/spark/pull/26675]

> Add Codegen Stage Id to Stage DAG visualization in Web UI
> ---------------------------------------------------------
>
>                 Key: SPARK-30041
>                 URL: https://issues.apache.org/jira/browse/SPARK-30041
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL, Web UI
>    Affects Versions: 3.0.0
>            Reporter: Luca Canali
>            Assignee: Luca Canali
>            Priority: Minor
>             Fix For: 3.0.0
>
>         Attachments: Snippet_StagesDags_with_CodegenId _annotated.png
>
>
> SPARK-29894 provides information on the Codegen Stage Id in WEBUI for SQL 
> Plan graphs. Similarly, this proposes to add Codegen Stage Id in the DAG 
> visualization for Stage execution. DAGs for Stage execution are available in 
> the WEBUI under the Jobs and Stages tabs.
>  This is proposed as an aid for drill-down analysis of complex SQL statement 
> execution, as it is not always easy to match parts of the SQL Plan graph with 
> the corresponding Stage DAG execution graph. Adding Codegen Stage Id for 
> WholeStageCodegen operations makes this task easier.
>  



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