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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.resourcetracker;
import java.util.ArrayList;
import java.util.List;
import org.junit.Assert;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.yarn.api.records.NodeId;
import org.apache.hadoop.yarn.api.records.Resource;
import org.apache.hadoop.yarn.conf.ConfigurationProvider;
import org.apache.hadoop.yarn.conf.ConfigurationProviderFactory;
import org.apache.hadoop.yarn.conf.YarnConfiguration;
import org.apache.hadoop.yarn.event.Dispatcher;
import org.apache.hadoop.yarn.event.EventHandler;
import org.apache.hadoop.yarn.event.InlineDispatcher;
import org.apache.hadoop.yarn.factories.RecordFactory;
import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider;
import org.apache.hadoop.yarn.server.api.protocolrecords.RegisterNodeManagerRequest;
import org.apache.hadoop.yarn.server.resourcemanager.NMLivelinessMonitor;
import org.apache.hadoop.yarn.server.resourcemanager.nodelabels.RMNodeLabelsManager;
import org.apache.hadoop.yarn.server.resourcemanager.NodesListManager;
import org.apache.hadoop.yarn.server.resourcemanager.RMContext;
import org.apache.hadoop.yarn.server.resourcemanager.RMContextImpl;
import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.NodeEventDispatcher;
import org.apache.hadoop.yarn.server.resourcemanager.ResourceTrackerService;
import org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNodeEvent;
import org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNodeEventType;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.AbstractYarnScheduler;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event.SchedulerEventType;
import org.apache.hadoop.yarn.server.resourcemanager.security.NMTokenSecretManagerInRM;
import org.apache.hadoop.yarn.server.resourcemanager.security.RMContainerTokenSecretManager;
import org.apache.hadoop.yarn.server.utils.BuilderUtils;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
public class TestNMReconnect {
private static final RecordFactory recordFactory =
RecordFactoryProvider.getRecordFactory(null);
private List<RMNodeEvent> rmNodeEvents = new ArrayList<RMNodeEvent>();
private Dispatcher dispatcher;
private RMContextImpl context;
private class TestRMNodeEventDispatcher implements
EventHandler<RMNodeEvent> {
@Override
public void handle(RMNodeEvent event) {
rmNodeEvents.add(event);
}
}
ResourceTrackerService resourceTrackerService;
@Before
public void setUp() {
Configuration conf = new Configuration();
// Dispatcher that processes events inline
dispatcher = new InlineDispatcher();
dispatcher.register(RMNodeEventType.class,
new TestRMNodeEventDispatcher());
context = new RMContextImpl(dispatcher, null,
null, null, null, null, null, null, null, null);
dispatcher.register(SchedulerEventType.class,
new InlineDispatcher.EmptyEventHandler());
dispatcher.register(RMNodeEventType.class,
new NodeEventDispatcher(context));
NMLivelinessMonitor nmLivelinessMonitor = new NMLivelinessMonitor(
dispatcher);
nmLivelinessMonitor.init(conf);
nmLivelinessMonitor.start();
NodesListManager nodesListManager = new NodesListManager(context);
nodesListManager.init(conf);
RMContainerTokenSecretManager containerTokenSecretManager =
new RMContainerTokenSecretManager(conf);
containerTokenSecretManager.start();
NMTokenSecretManagerInRM nmTokenSecretManager =
new NMTokenSecretManagerInRM(conf);
nmTokenSecretManager.start();
resourceTrackerService = new ResourceTrackerService(context,
nodesListManager, nmLivelinessMonitor, containerTokenSecretManager,
nmTokenSecretManager);
resourceTrackerService.init(conf);
resourceTrackerService.start();
}
@After
public void tearDown() {
resourceTrackerService.stop();
}
@Test
public void testReconnect() throws Exception {
String hostname1 = "localhost1";
Resource capability = BuilderUtils.newResource(1024, 1);
RegisterNodeManagerRequest request1 = recordFactory
.newRecordInstance(RegisterNodeManagerRequest.class);
NodeId nodeId1 = NodeId.newInstance(hostname1, 0);
request1.setNodeId(nodeId1);
request1.setHttpPort(0);
request1.setResource(capability);
resourceTrackerService.registerNodeManager(request1);
Assert.assertEquals(RMNodeEventType.STARTED, rmNodeEvents.get(0).getType());
rmNodeEvents.clear();
resourceTrackerService.registerNodeManager(request1);
Assert.assertEquals(RMNodeEventType.RECONNECTED,
rmNodeEvents.get(0).getType());
rmNodeEvents.clear();
resourceTrackerService.registerNodeManager(request1);
capability = BuilderUtils.newResource(1024, 2);
request1.setResource(capability);
Assert.assertEquals(RMNodeEventType.RECONNECTED,
rmNodeEvents.get(0).getType());
}
@Test
public void testCompareRMNodeAfterReconnect() throws Exception {
Configuration yarnConf = new YarnConfiguration();
CapacityScheduler scheduler = new CapacityScheduler();
scheduler.setConf(yarnConf);
ConfigurationProvider configurationProvider =
ConfigurationProviderFactory.getConfigurationProvider(yarnConf);
configurationProvider.init(yarnConf);
context.setConfigurationProvider(configurationProvider);
RMNodeLabelsManager nlm = new RMNodeLabelsManager();
nlm.init(yarnConf);
nlm.start();
context.setNodeLabelManager(nlm);
scheduler.setRMContext(context);
scheduler.init(yarnConf);
scheduler.start();
dispatcher.register(SchedulerEventType.class, scheduler);
String hostname1 = "localhost1";
Resource capability = BuilderUtils.newResource(4096, 4);
RegisterNodeManagerRequest request1 = recordFactory
.newRecordInstance(RegisterNodeManagerRequest.class);
NodeId nodeId1 = NodeId.newInstance(hostname1, 0);
request1.setNodeId(nodeId1);
request1.setHttpPort(0);
request1.setResource(capability);
resourceTrackerService.registerNodeManager(request1);
Assert.assertNotNull(context.getRMNodes().get(nodeId1));
// verify Scheduler and RMContext use same RMNode reference.
Assert.assertTrue(scheduler.getSchedulerNode(nodeId1).getRMNode() ==
context.getRMNodes().get(nodeId1));
Assert.assertEquals(context.getRMNodes().get(nodeId1).
getTotalCapability(), capability);
Resource capability1 = BuilderUtils.newResource(2048, 2);
request1.setResource(capability1);
resourceTrackerService.registerNodeManager(request1);
Assert.assertNotNull(context.getRMNodes().get(nodeId1));
// verify Scheduler and RMContext use same RMNode reference
// after reconnect.
Assert.assertTrue(scheduler.getSchedulerNode(nodeId1).getRMNode() ==
context.getRMNodes().get(nodeId1));
// verify RMNode's capability is changed.
Assert.assertEquals(context.getRMNodes().get(nodeId1).
getTotalCapability(), capability1);
nlm.stop();
scheduler.stop();
}
}