[GitHub] [spark] KevinSmile commented on pull request #29653: [SPARK-32804][Launcher] Fix run-example command builder bug

[GitBox]

KevinSmile commented on pull request #29653:
URL: https://github.com/apache/spark/pull/29653#issuecomment-688558296


   `app-jar` arg is always needed in `spark-submit` user command line, backend 
code won't add it for you; 
   while for `run-example`,  the backend code should auto-add `app-jar` arg for 
you.
   
   `--jars` option and `app-jar` arg are two different things.
   
   
![image](https://user-images.githubusercontent.com/17903517/92422250-2759f880-f1af-11ea-8cd0-34f8e45046d2.png)
   


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