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Posted to issues@spark.apache.org by "Marcelo Vanzin (JIRA)" <ji...@apache.org> on 2018/11/27 19:19:00 UTC
[jira] [Commented] (SPARK-26190) SparkLauncher: Allow users to set
their own submitter script instead of hardcoded spark-submit
[ https://issues.apache.org/jira/browse/SPARK-26190?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16700890#comment-16700890 ]
Marcelo Vanzin commented on SPARK-26190:
----------------------------------------
Based solely on what you wrote here, I'm leaning towards closing this.
SparkLauncher is a programatic API around spark-submit, not around your custom script. If you have a custom script, you can call it without using SparkLauncher.
> 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
> Priority: Major
>
> 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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