TestNMReconnect.java
/**
* 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 static org.apache.hadoop.yarn.server.resourcemanager.MockNM.createMockNodeStatus;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.yarn.api.records.NodeId;
import org.apache.hadoop.yarn.api.records.NodeState;
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.api.protocolrecords.RegisterNodeManagerResponse;
import org.apache.hadoop.yarn.server.api.records.NodeAction;
import org.apache.hadoop.yarn.server.api.records.NodeStatus;
import org.apache.hadoop.yarn.server.resourcemanager.MockNM;
import org.apache.hadoop.yarn.server.resourcemanager.MockRM;
import org.apache.hadoop.yarn.server.resourcemanager.ParameterizedSchedulerTestBase;
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.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.RMNode;
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.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.util.resource.Resources;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
/**
* TestNMReconnect run tests against the scheduler set by
* {@link ParameterizedSchedulerTestBase} which is configured
* in {@link YarnConfiguration}.
*/
public class TestNMReconnect extends ParameterizedSchedulerTestBase {
private static final RecordFactory recordFactory =
RecordFactoryProvider.getRecordFactory(null);
private List<RMNodeEvent> rmNodeEvents = new ArrayList<RMNodeEvent>();
private Dispatcher dispatcher;
private RMContextImpl context;
public TestNMReconnect(SchedulerType type) throws IOException {
super(type);
}
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 = Resources.createResource(1024);
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 = Resources.createResource(1024, 2);
request1.setResource(capability);
Assert.assertEquals(RMNodeEventType.RECONNECTED,
rmNodeEvents.get(0).getType());
}
@Test
public void testCompareRMNodeAfterReconnect() throws Exception {
AbstractYarnScheduler scheduler = getScheduler();
Configuration yarnConf = new YarnConfiguration();
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 = Resources.createResource(4096, 4);
RegisterNodeManagerRequest request1 = recordFactory
.newRecordInstance(RegisterNodeManagerRequest.class);
NodeId nodeId1 = NodeId.newInstance(hostname1, 0);
NodeStatus mockNodeStatus = createMockNodeStatus();
request1.setNodeId(nodeId1);
request1.setHttpPort(0);
request1.setResource(capability);
request1.setNodeStatus(mockNodeStatus);
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 = Resources.createResource(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();
}
@SuppressWarnings("unchecked")
@Test(timeout = 10000)
public void testDecommissioningNodeReconnect()
throws Exception {
MockRM rm = new MockRM();
rm.start();
MockNM nm1 =
new MockNM("127.0.0.1:1234", 15120, rm.getResourceTrackerService());
nm1.registerNode();
rm.waitForState(nm1.getNodeId(), NodeState.RUNNING);
rm.getRMContext().getDispatcher().getEventHandler().handle(
new RMNodeEvent(nm1.getNodeId(),
RMNodeEventType.GRACEFUL_DECOMMISSION));
rm.waitForState(nm1.getNodeId(), NodeState.DECOMMISSIONING);
MockNM nm2 =
new MockNM("127.0.0.1:1234", 15120, rm.getResourceTrackerService());
RegisterNodeManagerResponse response = nm2.registerNode();
// not SHUTDOWN
Assert.assertTrue(response.getNodeAction().equals(NodeAction.NORMAL));
rm.stop();
}
@Test(timeout = 10000)
public void testRMNodeStatusAfterReconnect() throws Exception {
// The node(127.0.0.1:1234) reconnected with RM. When it registered with
// RM, RM set its lastNodeHeartbeatResponse's id to 0 asynchronously. But
// the node's heartbeat come before RM succeeded setting the id to 0.
MockRM rm = new MockRM();
rm.start();
MockNM nm1 =
new MockNM("127.0.0.1:1234", 15120, rm.getResourceTrackerService());
nm1.registerNode();
int i = 0;
while(i < 3) {
nm1.nodeHeartbeat(true);
rm.drainEvents();
i++;
}
MockNM nm2 =
new MockNM("127.0.0.1:1234", 15120, rm.getResourceTrackerService());
nm2.registerNode();
RMNode rmNode = rm.getRMContext().getRMNodes().get(nm2.getNodeId());
nm2.nodeHeartbeat(true);
rm.drainEvents();
Assert.assertEquals("Node is Not in Running state.", NodeState.RUNNING,
rmNode.getState());
rm.stop();
}
}