Github user vanzin commented on a diff in the pull request: https://github.com/apache/spark/pull/22362#discussion_r216107597 --- Diff: core/src/main/scala/org/apache/spark/deploy/SparkSubmitArguments.scala --- @@ -199,8 +199,8 @@ private[deploy] class SparkSubmitArguments(args: Seq[String], env: Map[String, S numExecutors = Option(numExecutors) .getOrElse(sparkProperties.get("spark.executor.instances").orNull) queue = Option(queue).orElse(sparkProperties.get("spark.yarn.queue")).orNull - keytab = Option(keytab).orElse(sparkProperties.get("spark.yarn.keytab")).orNull - principal = Option(principal).orElse(sparkProperties.get("spark.yarn.principal")).orNull + keytab = Option(keytab).orElse(sparkProperties.get("spark.kerberos.keytab")).orNull --- End diff -- This has a similar issue as the R code above re: backwards compatibility.
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