1 files changed, 35 insertions, 0 deletions
diff --git a/yarn/src/main/scala/org/apache/spark/scheduler/cluster/YarnClientClusterScheduler.scala b/yarn/src/main/scala/org/apache/spark/scheduler/cluster/YarnClientClusterScheduler.scala
new file mode 100644
index 0000000000..254774a6b8
--- /dev/null
+++ b/yarn/src/main/scala/org/apache/spark/scheduler/cluster/YarnClientClusterScheduler.scala
@@ -0,0 +1,35 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.spark.scheduler.cluster
+
+import org.apache.spark._
+import org.apache.spark.deploy.yarn.YarnSparkHadoopUtil
+import org.apache.spark.scheduler.TaskSchedulerImpl
+import org.apache.spark.util.Utils
+
+/**
+ * This scheduler launches executors through Yarn - by calling into Client to launch the Spark AM.
+ */
+private[spark] class YarnClientClusterScheduler(sc: SparkContext) extends TaskSchedulerImpl(sc) {
+
+  // By default, rack is unknown
+  override def getRackForHost(hostPort: String): Option[String] = {
+    val host = Utils.parseHostPort(hostPort)._1
+    Option(YarnSparkHadoopUtil.lookupRack(sc.hadoopConfiguration, host))
+  }
+}