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From "Gianmario Spacagna (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SPARK-7367) CLI --help -h overrides the application arguments
Date Tue, 05 May 2015 11:57:01 GMT
Gianmario Spacagna created SPARK-7367:
-----------------------------------------

             Summary: 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
    Affects Versions: 1.0.0
            Reporter: Gianmario Spacagna
            Priority: Minor


The spark-submit script will parse the --help argument even if when 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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