Github user jackylk commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/2148#discussion_r182643919
--- Diff: store/search/src/main/scala/org/apache/spark/rpc/Master.scala ---
@@ -0,0 +1,215 @@
+/*
+ * 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.rpc
+
+import java.io.IOException
+import java.net.InetAddress
+import java.util.{List => JList, Map => JMap, Objects, Random, Set =>
JSet, UUID}
+
+import scala.collection.JavaConverters._
+import scala.collection.mutable
+import scala.collection.mutable.ArrayBuffer
+import scala.concurrent.ExecutionContext.Implicits.global
--- End diff --
fixed
---