Github user tgravescs commented on a diff in the pull request: https://github.com/apache/spark/pull/15009#discussion_r104673708 --- Diff: core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala --- @@ -719,13 +716,17 @@ object SparkSubmit extends CommandLineUtils { printWarning("Subclasses of scala.App may not work correctly. Use a main() method instead.") } - val sparkAppMainMethodArr = mainClass.getMethods().filter{_.getName() == "sparkMain"} + val sparkAppMainMethodArr = mainClass.getMethods().filter(_.getName() == "sparkMain") val isSparkApp = sparkAppMainMethodArr.length > 0 - val childSparkConf = sysProps.filter{ p => p._1.startsWith("spark.")}.toMap + val childSparkConf = sysProps.filter( p => p._1.startsWith("spark.")).toMap + + val threadEnabled = sysProps.getOrElse(SparkLauncher.LAUNCHER_INTERNAL_USE_THREAD, --- End diff -- threadEnabled isn't used anymore so we can remove that.
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