http://git-wip-us.apache.org/repos/asf/hadoop/blob/8d3112ad/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestDistributedSchedulingService.java
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+/**
+ * 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.hadoop.yarn.server.resourcemanager;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.ipc.ProtobufRpcEngine;
+import org.apache.hadoop.ipc.RPC;
+import org.apache.hadoop.ipc.Server;
+import org.apache.hadoop.net.NetUtils;
+import org.apache.hadoop.yarn.api.ApplicationMasterProtocol;
+import org.apache.hadoop.yarn.api.ApplicationMasterProtocolPB;
+import org.apache.hadoop.yarn.server.api.DistributedSchedulerProtocol;
+import org.apache.hadoop.yarn.server.api.DistributedSchedulerProtocolPB;
+import org.apache.hadoop.yarn.api.protocolrecords.AllocateRequest;
+import org.apache.hadoop.yarn.api.protocolrecords.AllocateResponse;
+import
org.apache.hadoop.yarn.server.api.protocolrecords.DistSchedAllocateResponse;
+import
org.apache.hadoop.yarn.server.api.protocolrecords.DistSchedRegisterResponse;
+import
org.apache.hadoop.yarn.api.protocolrecords.FinishApplicationMasterRequest;
+import
org.apache.hadoop.yarn.api.protocolrecords.FinishApplicationMasterResponse;
+import
org.apache.hadoop.yarn.api.protocolrecords.RegisterApplicationMasterRequest;
+import
org.apache.hadoop.yarn.api.protocolrecords.RegisterApplicationMasterResponse;
+
+import org.apache.hadoop.yarn.api.records.NodeId;
+import org.apache.hadoop.yarn.conf.YarnConfiguration;
+import org.apache.hadoop.yarn.exceptions.YarnException;
+import org.apache.hadoop.yarn.factories.RecordFactory;
+import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider;
+import org.apache.hadoop.yarn.ipc.HadoopYarnProtoRPC;
+import org.apache.hadoop.yarn.ipc.YarnRPC;
+import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt
+ .AMLivelinessMonitor;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.io.IOException;
+import java.net.InetSocketAddress;
+import java.util.Arrays;
+
+public class TestDistributedSchedulingService {
+
+ // Test if the DistributedSchedulingService can handle both DSProtocol as
+ // well as AMProtocol clients
+ @Test
+ public void testRPCWrapping() throws Exception {
+ Configuration conf = new Configuration();
+ conf.set(YarnConfiguration.IPC_RPC_IMPL, HadoopYarnProtoRPC.class
+ .getName());
+ YarnRPC rpc = YarnRPC.create(conf);
+ String bindAddr = "localhost:0";
+ InetSocketAddress addr = NetUtils.createSocketAddr(bindAddr);
+ conf.setSocketAddr(YarnConfiguration.RM_SCHEDULER_ADDRESS, addr);
+ final RecordFactory factory = RecordFactoryProvider.getRecordFactory(null);
+ final RMContext rmContext = new RMContextImpl() {
+ @Override
+ public AMLivelinessMonitor getAMLivelinessMonitor() {
+ return null;
+ }
+ };
+ DistributedSchedulingService service =
+ new DistributedSchedulingService(rmContext, null) {
+ @Override
+ public RegisterApplicationMasterResponse registerApplicationMaster
+ (RegisterApplicationMasterRequest request) throws
+ YarnException, IOException {
+ RegisterApplicationMasterResponse resp = factory.newRecordInstance(
+ RegisterApplicationMasterResponse.class);
+ // Dummy Entry to Assert that we get this object back
+ resp.setQueue("dummyQueue");
+ return resp;
+ }
+
+ @Override
+ public FinishApplicationMasterResponse finishApplicationMaster
+ (FinishApplicationMasterRequest request) throws YarnException,
+ IOException {
+ FinishApplicationMasterResponse resp = factory.newRecordInstance(
+ FinishApplicationMasterResponse.class);
+ // Dummy Entry to Assert that we get this object back
+ resp.setIsUnregistered(false);
+ return resp;
+ }
+
+ @Override
+ public AllocateResponse allocate(AllocateRequest request) throws
+ YarnException, IOException {
+ AllocateResponse response = factory.newRecordInstance
+ (AllocateResponse.class);
+ response.setNumClusterNodes(12345);
+ return response;
+ }
+
+ @Override
+ public DistSchedRegisterResponse
+ registerApplicationMasterForDistributedScheduling
+ (RegisterApplicationMasterRequest request) throws
+ YarnException, IOException {
+ DistSchedRegisterResponse resp = factory.newRecordInstance(
+ DistSchedRegisterResponse.class);
+ resp.setContainerIdStart(54321l);
+ return resp;
+ }
+
+ @Override
+ public DistSchedAllocateResponse allocateForDistributedScheduling
+ (AllocateRequest request) throws YarnException, IOException {
+ DistSchedAllocateResponse resp =
+ factory.newRecordInstance(DistSchedAllocateResponse.class);
+ resp.setNodesForScheduling(
+ Arrays.asList(NodeId.newInstance("h1", 1234)));
+ return resp;
+ }
+ };
+ Server server = service.getServer(rpc, conf, addr, null);
+ server.start();
+
+ // Verify that the DistrubutedSchedulingService can handle vanilla
+ // ApplicationMasterProtocol clients
+ RPC.setProtocolEngine(conf, ApplicationMasterProtocolPB.class,
+ ProtobufRpcEngine.class);
+ ApplicationMasterProtocol ampProxy =
+ (ApplicationMasterProtocol) rpc.getProxy(ApplicationMasterProtocol
+ .class, NetUtils.getConnectAddress(server), conf);
+ RegisterApplicationMasterResponse regResp =
ampProxy.registerApplicationMaster(
+ factory.newRecordInstance(RegisterApplicationMasterRequest.class));
+ Assert.assertEquals("dummyQueue", regResp.getQueue());
+ FinishApplicationMasterResponse finishResp = ampProxy
+ .finishApplicationMaster(factory.newRecordInstance(
+ FinishApplicationMasterRequest.class));
+ Assert.assertEquals(false, finishResp.getIsUnregistered());
+ AllocateResponse allocResp = ampProxy
+ .allocate(factory.newRecordInstance(AllocateRequest.class));
+ Assert.assertEquals(12345, allocResp.getNumClusterNodes());
+
+
+ // Verify that the DistrubutedSchedulingService can handle the
+ // DistributedSchedulerProtocol clients as well
+ RPC.setProtocolEngine(conf, DistributedSchedulerProtocolPB.class,
+ ProtobufRpcEngine.class);
+ DistributedSchedulerProtocol dsProxy =
+ (DistributedSchedulerProtocol)
rpc.getProxy(DistributedSchedulerProtocol
+ .class, NetUtils.getConnectAddress(server), conf);
+
+ DistSchedRegisterResponse dsRegResp =
+ dsProxy.registerApplicationMasterForDistributedScheduling(
+ factory.newRecordInstance(RegisterApplicationMasterRequest.class));
+ Assert.assertEquals(54321l, dsRegResp.getContainerIdStart());
+ DistSchedAllocateResponse dsAllocResp =
+ dsProxy.allocateForDistributedScheduling(
+ factory.newRecordInstance(AllocateRequest.class));
+ Assert.assertEquals(
+ "h1", dsAllocResp.getNodesForScheduling().get(0).getHost());
+ }
+}
