Github user jerryshao commented on a diff in the pull request: https://github.com/apache/spark/pull/19631#discussion_r151015745 --- Diff: core/src/main/scala/org/apache/spark/SparkContext.scala --- @@ -412,8 +412,6 @@ class SparkContext(config: SparkConf) extends Logging { } } - if (master == "yarn" && deployMode == "client") System.setProperty("SPARK_YARN_MODE", "true") --- End diff -- Not sure why this is not required anymore?
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