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From GitBox <...@apache.org>
Subject [GitHub] [incubator-livy] yiheng commented on a change in pull request #276: [LIVY-723] Server Registration
Date Fri, 13 Mar 2020 02:02:45 GMT
yiheng commented on a change in pull request #276: [LIVY-723] Server Registration
URL: https://github.com/apache/incubator-livy/pull/276#discussion_r391992640
 
 

 ##########
 File path: server/src/main/scala/org/apache/livy/cluster/ClusterManager.scala
 ##########
 @@ -0,0 +1,51 @@
+/*
+ * 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.livy.cluster
+
+import scala.collection.mutable.Set
+
+case class ServiceNode(host: String, port: Int, UUID: String)
+
+/**
+ * Interface for cluster management.
+ */
+abstract class ClusterManager {
+  /**
+   * Register current node into the cluster. It should be invoked when the node is ready
+   * for service.
+   */
+  def register(): Unit
+
+  /**
+   * Get the nodes in the cluster.
+   * @return
+   */
+  def getNodes(): Set[ServiceNode]
 
 Review comment:
   done

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