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https://issues.apache.org/jira/browse/SPARK-1906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14035823#comment-14035823
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Jacob Eisinger commented on SPARK-1906:
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A quick way to test is to run the the examples as documented on
http://spark.apache.org/docs/latest/submitting-applications.html , and you will
see the error above.
> spark-submit doesn't send master URL to Driver in standalone cluster mode
> -------------------------------------------------------------------------
>
> Key: SPARK-1906
> URL: https://issues.apache.org/jira/browse/SPARK-1906
> Project: Spark
> Issue Type: Sub-task
> Components: Deploy
> Reporter: Xiangrui Meng
> Priority: Minor
>
> `spark-submit` doesn't send `spark.master` to DriverWrapper. So the latter
> creates an empty SparkConf and throws an exception:
> {code}
> A master URL must be set in your configuration
> {code}
> The workaround is setting master explicitly in the user application.
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