Github user skonto commented on a diff in the pull request: https://github.com/apache/spark/pull/14511#discussion_r73868759 --- Diff: core/src/main/scala/org/apache/spark/scheduler/cluster/mesos/MesosClusterScheduler.scala --- @@ -463,9 +455,20 @@ private[spark] class MesosClusterScheduler( .mkString(",") options ++= Seq("--py-files", formattedFiles) } - desc.conf.getAll + + // --conf + val replicatedOptionsBlacklist = Set( + "spark.jars", // Avoids duplicate classes in classpath + "spark.submit.deployMode", // this would be set to `cluster`, but we need client + "spark.master" // this contains the address of the dispatcher, not master + ) + val defaultConf = conf.getAllWithPrefix("spark.mesos.dispatcher.driverProperty.").toMap + val driverConf = desc.conf.getAll .filter { case (key, _) => !replicatedOptionsBlacklist.contains(key) } - .foreach { case (key, value) => options ++= Seq("--conf", s"$key=${shellEscape(value)}") } + .toMap + (defaultConf ++ driverConf).foreach { case (key, value) => --- End diff -- what if I have the same property assigned both at driverConf and defaultConf should not be the case that the former takes precedence?
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