/**
* 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 java.io.IOException;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.yarn.api.ApplicationConstants;
import org.apache.hadoop.yarn.api.ContainerManagementProtocol;
import org.apache.hadoop.yarn.api.protocolrecords.AllocateResponse;
import org.apache.hadoop.yarn.api.protocolrecords.GetContainerStatusesRequest;
import org.apache.hadoop.yarn.api.protocolrecords.GetContainerStatusesResponse;
import org.apache.hadoop.yarn.api.protocolrecords.StartContainerRequest;
import org.apache.hadoop.yarn.api.protocolrecords.StartContainersRequest;
import org.apache.hadoop.yarn.api.protocolrecords.StartContainersResponse;
import org.apache.hadoop.yarn.api.protocolrecords.StopContainersRequest;
import org.apache.hadoop.yarn.api.protocolrecords.StopContainersResponse;
import org.apache.hadoop.yarn.api.records.AMCommand;
import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
import org.apache.hadoop.yarn.api.records.ContainerId;
import org.apache.hadoop.yarn.api.records.ContainerState;
import org.apache.hadoop.yarn.api.records.ResourceRequest;
import org.apache.hadoop.yarn.api.records.SerializedException;
import org.apache.hadoop.yarn.api.records.Token;
import org.apache.hadoop.yarn.conf.YarnConfiguration;
import org.apache.hadoop.yarn.exceptions.YarnException;
import org.apache.hadoop.yarn.ipc.RPCUtil;
import org.apache.hadoop.yarn.security.ContainerTokenIdentifier;
import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMApp;
import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttempt;
import org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptState;
import org.apache.hadoop.yarn.server.utils.BuilderUtils;
import org.apache.log4j.Level;
import org.apache.log4j.LogManager;
import org.apache.log4j.Logger;
import org.junit.Assert;
import org.junit.Test;
public class TestApplicationMasterLauncher {
private static final Log LOG = LogFactory
.getLog(TestApplicationMasterLauncher.class);
private static final class MyContainerManagerImpl implements
ContainerManagementProtocol {
boolean launched = false;
boolean cleanedup = false;
String attemptIdAtContainerManager = null;
String containerIdAtContainerManager = null;
String nmHostAtContainerManager = null;
long submitTimeAtContainerManager;
int maxAppAttempts;
@Override
public StartContainersResponse
startContainers(StartContainersRequest requests)
throws YarnException {
StartContainerRequest request = requests.getStartContainerRequests().get(0);
LOG.info("Container started by MyContainerManager: " + request);
launched = true;
Map<String, String> env =
request.getContainerLaunchContext().getEnvironment();
Token containerToken = request.getContainerToken();
ContainerTokenIdentifier tokenId = null;
try {
tokenId = BuilderUtils.newContainerTokenIdentifier(containerToken);
} catch (IOException e) {
throw RPCUtil.getRemoteException(e);
}
ContainerId containerId = tokenId.getContainerID();
containerIdAtContainerManager = containerId.toString();
attemptIdAtContainerManager =
containerId.getApplicationAttemptId().toString();
nmHostAtContainerManager = tokenId.getNmHostAddress();
submitTimeAtContainerManager =
Long.parseLong(env.get(ApplicationConstants.APP_SUBMIT_TIME_ENV));
maxAppAttempts =
Integer.parseInt(env.get(ApplicationConstants.MAX_APP_ATTEMPTS_ENV));
return StartContainersResponse.newInstance(
new HashMap<String, ByteBuffer>(), new ArrayList<ContainerId>(),
new HashMap<ContainerId, SerializedException>());
}
@Override
public StopContainersResponse stopContainers(StopContainersRequest request)
throws YarnException {
LOG.info("Container cleaned up by MyContainerManager");
cleanedup = true;
return null;
}
@Override
public GetContainerStatusesResponse getContainerStatuses(
GetContainerStatusesRequest request) throws YarnException {
return null;
}
}
@Test
public void testAMLaunchAndCleanup() throws Exception {
Logger rootLogger = LogManager.getRootLogger();
rootLogger.setLevel(Level.DEBUG);
MyContainerManagerImpl containerManager = new MyContainerManagerImpl();
MockRMWithCustomAMLauncher rm = new MockRMWithCustomAMLauncher(
containerManager);
rm.start();
MockNM nm1 = rm.registerNode("127.0.0.1:1234", 5120);
RMApp app = rm.submitApp(2000);
// kick the scheduling
nm1.nodeHeartbeat(true);
int waitCount = 0;
while (containerManager.launched == false && waitCount++ < 20) {
LOG.info("Waiting for AM Launch to happen..");
Thread.sleep(1000);
}
Assert.assertTrue(containerManager.launched);
RMAppAttempt attempt = app.getCurrentAppAttempt();
ApplicationAttemptId appAttemptId = attempt.getAppAttemptId();
Assert.assertEquals(appAttemptId.toString(),
containerManager.attemptIdAtContainerManager);
Assert.assertEquals(app.getSubmitTime(),
containerManager.submitTimeAtContainerManager);
Assert.assertEquals(app.getRMAppAttempt(appAttemptId)
.getMasterContainer().getId()
.toString(), containerManager.containerIdAtContainerManager);
Assert.assertEquals(nm1.getNodeId().toString(),
containerManager.nmHostAtContainerManager);
Assert.assertEquals(YarnConfiguration.DEFAULT_RM_AM_MAX_ATTEMPTS,
containerManager.maxAppAttempts);
MockAM am = new MockAM(rm.getRMContext(), rm
.getApplicationMasterService(), appAttemptId);
am.registerAppAttempt();
am.unregisterAppAttempt();
//complete the AM container to finish the app normally
nm1.nodeHeartbeat(attempt.getAppAttemptId(), 1, ContainerState.COMPLETE);
am.waitForState(RMAppAttemptState.FINISHED);
waitCount = 0;
while (containerManager.cleanedup == false && waitCount++ < 20) {
LOG.info("Waiting for AM Cleanup to happen..");
Thread.sleep(1000);
}
Assert.assertTrue(containerManager.cleanedup);
am.waitForState(RMAppAttemptState.FINISHED);
rm.stop();
}
@SuppressWarnings("unused")
@Test(timeout = 100000)
public void testallocateBeforeAMRegistration() throws Exception {
Logger rootLogger = LogManager.getRootLogger();
boolean thrown = false;
rootLogger.setLevel(Level.DEBUG);
MockRM rm = new MockRM();
rm.start();
MockNM nm1 = rm.registerNode("h1:1234", 5000);
RMApp app = rm.submitApp(2000);
// kick the scheduling
nm1.nodeHeartbeat(true);
RMAppAttempt attempt = app.getCurrentAppAttempt();
MockAM am = rm.sendAMLaunched(attempt.getAppAttemptId());
// request for containers
int request = 2;
AllocateResponse ar =
am.allocate("h1", 1000, request, new ArrayList<ContainerId>());
Assert.assertTrue(ar.getAMCommand() == AMCommand.AM_RESYNC);
// kick the scheduler
nm1.nodeHeartbeat(true);
AllocateResponse amrs =
am.allocate(new ArrayList<ResourceRequest>(),
new ArrayList<ContainerId>());
Assert.assertTrue(ar.getAMCommand() == AMCommand.AM_RESYNC);
am.registerAppAttempt();
thrown = false;
try {
am.registerAppAttempt(false);
}
catch (Exception e) {
Assert.assertEquals("Application Master is already registered : "
+ attempt.getAppAttemptId().getApplicationId(),
e.getMessage());
thrown = true;
}
Assert.assertTrue(thrown);
// Simulate an AM that was disconnected and app attempt was removed
// (responseMap does not contain attemptid)
am.unregisterAppAttempt();
nm1.nodeHeartbeat(attempt.getAppAttemptId(), 1,
ContainerState.COMPLETE);
am.waitForState(RMAppAttemptState.FINISHED);
AllocateResponse amrs2 =
am.allocate(new ArrayList<ResourceRequest>(),
new ArrayList<ContainerId>());
Assert.assertTrue(amrs2.getAMCommand() == AMCommand.AM_SHUTDOWN);
}
}