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https://issues.apache.org/jira/browse/SPARK-7367?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14532859#comment-14532859
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Gianmario Spacagna commented on SPARK-7367:
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When using CLI libraries like Scallop you can then specify --help or -h as 
argument of your application and it will print out the usage of your options 
pretty much like Spark does. If I am running my application using spark-submit 
and then --help I would like to see my application helper message rather than 
how to run a Spark job.

See examples here: 
https://github.com/scallop/scallop/wiki/Help-information-printing

> spark-submit CLI --help -h overrides the application arguments
> --------------------------------------------------------------
>
>                 Key: SPARK-7367
>                 URL: https://issues.apache.org/jira/browse/SPARK-7367
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Submit
>            Reporter: Gianmario Spacagna
>            Priority: Minor
>
> The spark-submit script will parse the --help argument even if is provided as 
> application argument.
> E.g. 
> spark-submit --master local[*] --driver-memory 4G --class bar.foo.MyClass 
> /MyLocalJAR.jar --help
> or
> spark-submit --master local[*] --driver-memory 4G --class bar.foo.MyClass 
> /MyLocalJAR.jar -h
> If my application is using a parsing library, such as Scallop, then it will 
> never be able to run the application with --help as argument.
> I think the spark-submit script should only print the help message when is 
> provided as single argument like this:
> spark-submit --help
> or it should provide a separator for trailing arguments:
> spark-submit --master local[*] --driver-memory 4G --class bar.foo.MyClass 
> /MyLocalJAR.jar -- --help --arg1 --arg2



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