[jira] [Created] (SPARK-26190) SparkLauncher: Allow users to set their own submitter script instead of hardcoded spark-submit

["Gyanendra Dwivedi (JIRA)" <ji...@apache.org>]

Gyanendra Dwivedi created SPARK-26190:
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             Summary: SparkLauncher: Allow users to set their own submitter script instead of hardcoded spark-submit
                 Key: SPARK-26190
                 URL: https://issues.apache.org/jira/browse/SPARK-26190
             Project: Spark
          Issue Type: Improvement
          Components: Java API, Spark Core, Spark Submit
    Affects Versions: 2.1.0
         Environment: Apache Spark 2.0.1 on yarn cluster (MapR distribution)
            Reporter: Gyanendra Dwivedi


Currently the script name is hard-coded in the 'createBuilder()' method of org.apache.spark.launcher.SparkLauncher class:

 

private ProcessBuilder createBuilder() {
 List<String> cmd = new ArrayList();
 String script = CommandBuilderUtils.isWindows() ? "*spark-submit.cmd*" : "*spark-submit*";
 cmd.add(CommandBuilderUtils.join(File.separator, new String[]\{this.builder.getSparkHome(), "bin", script}));
 cmd.addAll(this.builder.buildSparkSubmitArgs());

............

.............

}

 

It has following issues, which prevents its usage in certain scenario. 

1) Developer may not use their own custom scripts with different name. They are forced to use the one shipped with the installation. Overwriting that may not be the option, when it is not allowed to alter the original installation.

2) The code expect the script to be present at "SPARK_HOME/bin" folder. 

3) The 'createBuilder()' method is private and hence, extending the 'org.apache.spark.launcher.SparkLauncher' is not an option.

 

Proposed solution:

1) Developer should be given option to set their own custom script, which may be located at any path.

2) Only in case the parameter is not set, the default should be taken from SPARK_HOME/bin folder.



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