Github user sun-rui commented on the issue: https://github.com/apache/spark/pull/14639 @zjffdu, yes, no need to download spark in yarn-client provided that spark-submit is called to launch an R script. I just want to verify that your change works in this case. But note if yarn-client is used in Shell mode in a manual way (don not reply on spark-submit), it is possible that spark needs to be downloaded.
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