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ASF GitHub Bot commented on FLINK-4516: --------------------------------------- Github user beyond1920 commented on a diff in the pull request: https://github.com/apache/flink/pull/2427#discussion_r76909719 --- Diff: flink-runtime/src/test/java/org/apache/flink/runtime/rpc/TestingSerialRpcService.java --- @@ -0,0 +1,336 @@ +/* + * 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.flink.runtime.rpc; + +import akka.dispatch.ExecutionContexts; +import akka.dispatch.Futures; +import akka.util.Timeout; +import org.apache.flink.api.java.tuple.Tuple2; +import org.apache.flink.runtime.util.DirectExecutorService; +import org.apache.flink.util.Preconditions; +import scala.concurrent.Await; +import scala.concurrent.ExecutionContext; +import scala.concurrent.Future; +import scala.concurrent.duration.FiniteDuration; + +import java.lang.annotation.Annotation; +import java.lang.reflect.InvocationHandler; +import java.lang.reflect.Method; +import java.lang.reflect.Proxy; +import java.util.BitSet; +import java.util.UUID; +import java.util.concurrent.Callable; +import java.util.concurrent.ConcurrentHashMap; +import java.util.concurrent.TimeUnit; + + +/** + * An RPC Service implementation for testing. This RPC service directly executes all asynchronous calls one by one in the main thread. + */ +public class TestingSerialRpcService extends TestingRpcService { --- End diff -- yes, of course, i thought the new rpcService could use the registerGateway and connect method in TestingRpcService by extending the TestingRpcService. I could change it. > ResourceManager leadership election > ----------------------------------- > > Key: FLINK-4516 > URL: https://issues.apache.org/jira/browse/FLINK-4516 > Project: Flink > Issue Type: Sub-task > Components: Cluster Management > Reporter: zhangjing > Assignee: zhangjing > > 1. When a resourceManager is started, it starts the leadership election > service first and take part in contending for leadership > 2. Every resourceManager contains a ResourceManagerLeaderContender, when it > is granted leadership, it will start SlotManager and other main components. > when it is revoked leadership, it will stop all its components and clear > everything. -- This message was sent by Atlassian JIRA (v6.3.4#6332)