/*
* 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 static org.mockito.Matchers.isA;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.spy;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.EnumSet;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.apache.commons.io.FileUtils;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.CommonConfigurationKeysPublic;
import org.apache.hadoop.io.DataOutputBuffer;
import org.apache.hadoop.io.IOUtils;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.net.NetUtils;
import org.apache.hadoop.security.Credentials;
import org.apache.hadoop.security.SaslRpcServer.AuthMethod;
import org.apache.hadoop.security.SecurityUtil;
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hadoop.security.token.Token;
import org.apache.hadoop.security.token.delegation.DelegationKey;
import org.apache.hadoop.service.Service.STATE;
import org.apache.hadoop.yarn.api.protocolrecords.FinishApplicationMasterRequest;
import org.apache.hadoop.yarn.api.protocolrecords.GetApplicationReportRequest;
import org.apache.hadoop.yarn.api.protocolrecords.GetApplicationReportResponse;
import org.apache.hadoop.yarn.api.protocolrecords.GetApplicationsRequest;
import org.apache.hadoop.yarn.api.protocolrecords.GetApplicationsResponse;
import org.apache.hadoop.yarn.api.protocolrecords.GetDelegationTokenRequest;
import org.apache.hadoop.yarn.api.protocolrecords.GetDelegationTokenResponse;
import org.apache.hadoop.yarn.api.protocolrecords.KillApplicationResponse;
import org.apache.hadoop.yarn.api.records.ApplicationAccessType;
import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.hadoop.yarn.api.records.ApplicationReport;
import org.apache.hadoop.yarn.api.records.ApplicationSubmissionContext;
import org.apache.hadoop.yarn.api.records.Container;
import org.apache.hadoop.yarn.api.records.ContainerId;
import org.apache.hadoop.yarn.api.records.ContainerState;
import org.apache.hadoop.yarn.api.records.FinalApplicationStatus;
import org.apache.hadoop.yarn.api.records.NodeId;
import org.apache.hadoop.yarn.api.records.Priority;
import org.apache.hadoop.yarn.api.records.Resource;
import org.apache.hadoop.yarn.api.records.ResourceRequest;
import org.apache.hadoop.yarn.api.records.YarnApplicationState;
import org.apache.hadoop.yarn.conf.YarnConfiguration;
import org.apache.hadoop.yarn.event.Dispatcher;
import org.apache.hadoop.yarn.event.DrainDispatcher;
import org.apache.hadoop.yarn.exceptions.ApplicationAttemptNotFoundException;
import org.apache.hadoop.yarn.security.AMRMTokenIdentifier;
import org.apache.hadoop.yarn.security.client.RMDelegationTokenIdentifier;
import org.apache.hadoop.yarn.server.api.protocolrecords.NMContainerStatus;
import org.apache.hadoop.yarn.server.api.protocolrecords.NodeHeartbeatResponse;
import org.apache.hadoop.yarn.server.api.records.NodeAction;
import org.apache.hadoop.yarn.server.resourcemanager.nodelabels.RMNodeLabelsManager;
import org.apache.hadoop.yarn.server.resourcemanager.recovery.MemoryRMStateStore;
import org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore;
import org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore.RMState;
import org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStoreAMRMTokenEvent;
import org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStoreEvent;
import org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStoreRMDTEvent;
import org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStoreRMDTMasterKeyEvent;
import org.apache.hadoop.yarn.server.resourcemanager.recovery.records.ApplicationAttemptStateData;
import org.apache.hadoop.yarn.server.resourcemanager.recovery.records.ApplicationStateData;
import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMApp;
import org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppState;
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.resourcemanager.scheduler.QueueMetrics;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.YarnScheduler;
import org.apache.hadoop.yarn.server.security.ApplicationACLsManager;
import org.apache.hadoop.yarn.server.utils.BuilderUtils;
import org.apache.hadoop.yarn.util.ConverterUtils;
import org.apache.log4j.Level;
import org.apache.log4j.LogManager;
import org.apache.log4j.Logger;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Sets;
import io.hops.util.DBUtility;
import io.hops.util.RMStorageFactory;
import io.hops.util.YarnAPIStorageFactory;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.yarn.server.resourcemanager.recovery.FileSystemRMStateStore;
import org.junit.Ignore;
public class TestRMRestart extends ParameterizedSchedulerTestBase {
private final static File TEMP_DIR = new File(System.getProperty(
"test.build.data", "/tmp"), "decommision");
private File hostFile = new File(TEMP_DIR + File.separator + "hostFile.txt");
private YarnConfiguration conf;
// Fake rmAddr for token-renewal
private static InetSocketAddress rmAddr;
private List<MockRM> rms = new ArrayList<MockRM>();
private FileSystem fs;
private Path tmpDir;
public TestRMRestart(SchedulerType type) {
super(type);
}
@Before
public void setup() throws IOException {
conf = getConf();
Logger rootLogger = LogManager.getRootLogger();
rootLogger.setLevel(Level.DEBUG);
UserGroupInformation.setConfiguration(conf);
conf.setBoolean(YarnConfiguration.RECOVERY_ENABLED, true);
conf.setBoolean(YarnConfiguration.RM_WORK_PRESERVING_RECOVERY_ENABLED, false);
fs = FileSystem.get(conf);
tmpDir = new Path(new File("target", this.getClass().getSimpleName()
+ "-tmpDir").getAbsolutePath());
fs.delete(tmpDir, true);
fs.mkdirs(tmpDir);
conf.set(YarnConfiguration.FS_RM_STATE_STORE_URI,tmpDir.toString());
conf.set(YarnConfiguration.RM_STORE, FileSystemRMStateStore.class.getName());
YarnAPIStorageFactory.setConfiguration(conf);
RMStorageFactory.setConfiguration(conf);
DBUtility.InitializeDB();
rmAddr = new InetSocketAddress("localhost", 8032);
Assert.assertTrue(YarnConfiguration.DEFAULT_RM_AM_MAX_ATTEMPTS > 1);
}
@After
public void tearDown() throws IOException {
for (MockRM rm : rms) {
rm.stop();
}
rms.clear();
fs.delete(tmpDir, true);
TEMP_DIR.delete();
}
/**
*
* @return a new MockRM that will be stopped at the end of the test.
*/
private MockRM createMockRM(YarnConfiguration conf, RMStateStore store) {
MockRM rm = new MockRM(conf, store);
rms.add(rm);
return rm;
}
private MockRM createMockRM(YarnConfiguration conf) {
MockRM rm = new MockRM(conf);
rms.add(rm);
return rm;
}
@SuppressWarnings("rawtypes")
@Test (timeout=180000)
public void testRMRestart() throws Exception {
conf.setInt(YarnConfiguration.RM_AM_MAX_ATTEMPTS,
YarnConfiguration.DEFAULT_RM_AM_MAX_ATTEMPTS);
// PHASE 1: create state in an RM
// start RM
MockRM rm1 = createMockRM(conf);
// start like normal because state is empty
rm1.start();
MockNM nm1 =
new MockNM("127.0.0.1:1234", 15120, rm1.getResourceTrackerService());
MockNM nm2 =
new MockNM("127.0.0.2:5678", 15120, rm1.getResourceTrackerService());
nm1.registerNode();
nm2.registerNode(); // nm2 will not heartbeat with RM1
// create app that will finish and the final state should be saved.
RMApp app0 = rm1.submitApp(200);
RMAppAttempt attempt0 = app0.getCurrentAppAttempt();
// spot check that app is saved
RMState rmState = rm1.getRMContext().getStateStore().loadState();
Map<ApplicationId, ApplicationStateData> rmAppState =
rmState.getApplicationState();
Assert.assertEquals(1, rmAppState.size());
nm1.nodeHeartbeat(true);
MockAM am0 = rm1.sendAMLaunched(attempt0.getAppAttemptId());
am0.registerAppAttempt();
finishApplicationMaster(app0, rm1, nm1, am0);
// create app that gets launched and does allocate before RM restart
RMApp app1 = rm1.submitApp(200);
// assert app1 info is saved
rmState = rm1.getRMContext().getStateStore().loadState();
rmAppState = rmState.getApplicationState();
ApplicationStateData appState = rmAppState.get(app1.getApplicationId());
Assert.assertNotNull(appState);
Assert.assertEquals(0, appState.getAttemptCount());
Assert.assertEquals(appState.getApplicationSubmissionContext()
.getApplicationId(), app1.getApplicationSubmissionContext()
.getApplicationId());
//kick the scheduling to allocate AM container
nm1.nodeHeartbeat(true);
// assert app1 attempt is saved
RMAppAttempt attempt1 = app1.getCurrentAppAttempt();
ApplicationAttemptId attemptId1 = attempt1.getAppAttemptId();
rm1.waitForState(attemptId1, RMAppAttemptState.ALLOCATED);
rmState = rm1.getRMContext().getStateStore().loadState();
rmAppState = rmState.getApplicationState();
appState = rmAppState.get(app1.getApplicationId());
Assert.assertEquals(1, appState.getAttemptCount());
ApplicationAttemptStateData attemptState =
appState.getAttempt(attemptId1);
Assert.assertNotNull(attemptState);
Assert.assertEquals(BuilderUtils.newContainerId(attemptId1, 1),
attemptState.getMasterContainer().getId());
// launch the AM
MockAM am1 = rm1.sendAMLaunched(attempt1.getAppAttemptId());
am1.registerAppAttempt();
// AM request for containers
am1.allocate("127.0.0.1" , 1000, 1, new ArrayList<ContainerId>());
// kick the scheduler
nm1.nodeHeartbeat(true);
List<Container> conts = am1.allocate(new ArrayList<ResourceRequest>(),
new ArrayList<ContainerId>()).getAllocatedContainers();
while (conts.size() == 0) {
nm1.nodeHeartbeat(true);
conts.addAll(am1.allocate(new ArrayList<ResourceRequest>(),
new ArrayList<ContainerId>()).getAllocatedContainers());
Thread.sleep(500);
}
// create app that does not get launched by RM before RM restart
RMApp app2 = rm1.submitApp(200);
// assert app2 info is saved
rmState = rm1.getRMContext().getStateStore().loadState();
rmAppState =rmState.getApplicationState();
appState = rmAppState.get(app2.getApplicationId());
Assert.assertNotNull(appState);
Assert.assertEquals(0, appState.getAttemptCount());
Assert.assertEquals(appState.getApplicationSubmissionContext()
.getApplicationId(), app2.getApplicationSubmissionContext()
.getApplicationId());
// create unmanaged app
RMApp appUnmanaged = rm1.submitApp(200, "someApp", "someUser", null, true,
null, conf.getInt(YarnConfiguration.RM_AM_MAX_ATTEMPTS,
YarnConfiguration.DEFAULT_RM_AM_MAX_ATTEMPTS), null);
ApplicationAttemptId unmanagedAttemptId =
appUnmanaged.getCurrentAppAttempt().getAppAttemptId();
// assert appUnmanaged info is saved
ApplicationId unmanagedAppId = appUnmanaged.getApplicationId();
rmState = rm1.getRMContext().getStateStore().loadState();
rmAppState =rmState.getApplicationState();
appState = rmAppState.get(unmanagedAppId);
Assert.assertNotNull(appState);
// wait for attempt to reach LAUNCHED state
rm1.waitForState(unmanagedAttemptId, RMAppAttemptState.LAUNCHED);
rm1.waitForState(unmanagedAppId, RMAppState.ACCEPTED);
// assert unmanaged attempt info is saved
rmState = rm1.getRMContext().getStateStore().loadState();
rmAppState =rmState.getApplicationState();
appState = rmAppState.get(unmanagedAppId);
Assert.assertEquals(1, appState.getAttemptCount());
Assert.assertEquals(appState.getApplicationSubmissionContext()
.getApplicationId(), appUnmanaged.getApplicationSubmissionContext()
.getApplicationId());
// PHASE 2: create new RM and start from old state
// create new RM to represent restart and recover state
MockRM rm2 = createMockRM(conf);
// start new RM
rm2.start();
// change NM to point to new RM
nm1.setResourceTrackerService(rm2.getResourceTrackerService());
nm2.setResourceTrackerService(rm2.getResourceTrackerService());
// verify load of old state
// 4 apps are loaded.
// FINISHED app and attempt is also loaded back.
// Unmanaged app state is still loaded back but it cannot be restarted by
// the RM. this will change with work preserving RM restart in which AMs/NMs
// are not rebooted.
Assert.assertEquals(4, rm2.getRMContext().getRMApps().size());
// check that earlier finished app and attempt is also loaded back and move
// to finished state.
rm2.waitForState(app0.getApplicationId(), RMAppState.FINISHED);
rm2.waitForState(am0.getApplicationAttemptId(), RMAppAttemptState.FINISHED);
// verify correct number of attempts and other data
RMApp loadedApp1 = rm2.getRMContext().getRMApps().get(app1.getApplicationId());
Assert.assertNotNull(loadedApp1);
Assert.assertEquals(1, loadedApp1.getAppAttempts().size());
Assert.assertEquals(app1.getApplicationSubmissionContext()
.getApplicationId(), loadedApp1.getApplicationSubmissionContext()
.getApplicationId());
RMApp loadedApp2 = rm2.getRMContext().getRMApps().get(app2.getApplicationId());
Assert.assertNotNull(loadedApp2);
//Assert.assertEquals(0, loadedApp2.getAppAttempts().size());
Assert.assertEquals(app2.getApplicationSubmissionContext()
.getApplicationId(), loadedApp2.getApplicationSubmissionContext()
.getApplicationId());
// verify state machine kicked into expected states
rm2.waitForState(loadedApp1.getApplicationId(), RMAppState.ACCEPTED);
rm2.waitForState(loadedApp2.getApplicationId(), RMAppState.ACCEPTED);
// verify attempts for apps
// The app for which AM was started will wait for previous am
// container finish event to arrive. However for an application for which
// no am container was running will start new application attempt.
Assert.assertEquals(1, loadedApp1.getAppAttempts().size());
Assert.assertEquals(1, loadedApp2.getAppAttempts().size());
// verify old AM is not accepted
// change running AM to talk to new RM
am1.setAMRMProtocol(rm2.getApplicationMasterService(), rm2.getRMContext());
try {
am1.allocate(new ArrayList<ResourceRequest>(),
new ArrayList<ContainerId>());
Assert.fail();
} catch (ApplicationAttemptNotFoundException e) {
Assert.assertTrue(e instanceof ApplicationAttemptNotFoundException);
}
// NM should be rebooted on heartbeat, even first heartbeat for nm2
NodeHeartbeatResponse hbResponse = nm1.nodeHeartbeat(true);
Assert.assertEquals(NodeAction.RESYNC, hbResponse.getNodeAction());
hbResponse = nm2.nodeHeartbeat(true);
Assert.assertEquals(NodeAction.RESYNC, hbResponse.getNodeAction());
// new NM to represent NM re-register
nm1 = new MockNM("127.0.0.1:1234", 15120, rm2.getResourceTrackerService());
nm2 = new MockNM("127.0.0.2:5678", 15120, rm2.getResourceTrackerService());
NMContainerStatus status =
TestRMRestart
.createNMContainerStatus(loadedApp1.getCurrentAppAttempt()
.getAppAttemptId(), 1, ContainerState.COMPLETE);
nm1.registerNode(Arrays.asList(status), null);
nm2.registerNode();
rm2.waitForState(loadedApp1.getApplicationId(), RMAppState.ACCEPTED);
// wait for the 2nd attempt to be started.
int timeoutSecs = 0;
while (loadedApp1.getAppAttempts().size() != 2 && timeoutSecs++ < 40) {;
Thread.sleep(200);
}
// verify no more reboot response sent
hbResponse = nm1.nodeHeartbeat(true);
Assert.assertTrue(NodeAction.RESYNC != hbResponse.getNodeAction());
hbResponse = nm2.nodeHeartbeat(true);
Assert.assertTrue(NodeAction.RESYNC != hbResponse.getNodeAction());
// assert app1 attempt is saved
attempt1 = loadedApp1.getCurrentAppAttempt();
attemptId1 = attempt1.getAppAttemptId();
rm2.waitForState(attemptId1, RMAppAttemptState.ALLOCATED);
rmState = rm2.getRMContext().getStateStore().loadState();
rmAppState =rmState.getApplicationState();
appState = rmAppState.get(loadedApp1.getApplicationId());
attemptState = appState.getAttempt(attemptId1);
Assert.assertNotNull(attemptState);
Assert.assertEquals(BuilderUtils.newContainerId(attemptId1, 1),
attemptState.getMasterContainer().getId());
// Nodes on which the AM's run
MockNM am1Node = nm1;
if (attemptState.getMasterContainer().getNodeId().toString()
.contains("127.0.0.2")) {
am1Node = nm2;
}
// assert app2 attempt is saved
RMAppAttempt attempt2 = loadedApp2.getCurrentAppAttempt();
ApplicationAttemptId attemptId2 = attempt2.getAppAttemptId();
rm2.waitForState(attemptId2, RMAppAttemptState.ALLOCATED);
rmState = rm2.getRMContext().getStateStore().loadState();
rmAppState =rmState.getApplicationState();
appState = rmAppState.get(loadedApp2.getApplicationId());
attemptState = appState.getAttempt(attemptId2);
Assert.assertNotNull(attemptState);
Assert.assertEquals(BuilderUtils.newContainerId(attemptId2, 1),
attemptState.getMasterContainer().getId());
MockNM am2Node = nm1;
if (attemptState.getMasterContainer().getNodeId().toString()
.contains("127.0.0.2")) {
am2Node = nm2;
}
// start the AM's
am1 = rm2.sendAMLaunched(attempt1.getAppAttemptId());
am1.registerAppAttempt();
MockAM am2 = rm2.sendAMLaunched(attempt2.getAppAttemptId());
am2.registerAppAttempt();
//request for containers
am1.allocate("127.0.0.1" , 1000, 3, new ArrayList<ContainerId>());
am2.allocate("127.0.0.2" , 1000, 1, new ArrayList<ContainerId>());
// verify container allocate continues to work
nm1.nodeHeartbeat(true);
nm2.nodeHeartbeat(true);
conts = am1.allocate(new ArrayList<ResourceRequest>(),
new ArrayList<ContainerId>()).getAllocatedContainers();
while (conts.size() == 0) {
nm1.nodeHeartbeat(true);
nm2.nodeHeartbeat(true);
conts.addAll(am1.allocate(new ArrayList<ResourceRequest>(),
new ArrayList<ContainerId>()).getAllocatedContainers());
Thread.sleep(500);
}
// finish the AMs
finishApplicationMaster(loadedApp1, rm2, am1Node, am1);
finishApplicationMaster(loadedApp2, rm2, am2Node, am2);
// stop RM's
rm2.stop();
rm1.stop();
// completed apps are not removed immediately after app finish
// And finished app is also loaded back.
rmState = rm2.getRMContext().getStateStore().loadState();
rmAppState =rmState.getApplicationState();
Assert.assertEquals(4, rmAppState.size());
}
@Test (timeout = 60000)
public void testRMRestartAppRunningAMFailed() throws Exception {
conf.setInt(YarnConfiguration.RM_AM_MAX_ATTEMPTS,
YarnConfiguration.DEFAULT_RM_AM_MAX_ATTEMPTS);
// start RM
MockRM rm1 = createMockRM(conf);
rm1.start();
MockNM nm1 =
new MockNM("127.0.0.1:1234", 15120, rm1.getResourceTrackerService());
nm1.registerNode();
// create app and launch the AM
RMApp app0 =
rm1.submitApp(200, "name", "user",
new HashMap<ApplicationAccessType, String>(), false, "default", -1,
null, "MAPREDUCE", true, true);
MockAM am0 = launchAM(app0, rm1, nm1);
// fail the AM by sending CONTAINER_FINISHED event without registering.
nm1.nodeHeartbeat(am0.getApplicationAttemptId(), 1, ContainerState.COMPLETE);
am0.waitForState(RMAppAttemptState.FAILED);
RMState rmState = rm1.getRMContext().getStateStore().loadState();
Map<ApplicationId, ApplicationStateData> rmAppState = rmState.
getApplicationState();
ApplicationStateData appState = rmAppState.get(app0.getApplicationId());
// assert the AM failed state is saved.
Assert.assertEquals(RMAppAttemptState.FAILED,
appState.getAttempt(am0.getApplicationAttemptId()).getState());
// assert app state has not been saved.
Assert.assertNull(rmAppState.get(app0.getApplicationId()).getState());
// new AM started but not registered, app still stays at ACCECPTED state.
rm1.waitForState(app0.getApplicationId(), RMAppState.ACCEPTED);
// start new RM
MockRM rm2 = createMockRM(conf);
rm2.start();
// assert the previous AM state is loaded back on RM recovery.
rm2.waitForState(am0.getApplicationAttemptId(), RMAppAttemptState.FAILED);
}
@Test (timeout = 60000)
public void testRMRestartWaitForPreviousAMToFinish() throws Exception {
// testing 3 cases
// After RM restarts
// 1) New application attempt is not started until previous AM container
// finish event is reported back to RM as a part of nm registration.
// 2) If previous AM container finish event is never reported back (i.e.
// node manager on which this AM container was running also went down) in
// that case AMLivenessMonitor should time out previous attempt and start
// new attempt.
// 3) If all the stored attempts had finished then new attempt should
// be started immediately.
YarnConfiguration conf = new YarnConfiguration(this.conf);
conf.setInt(YarnConfiguration.RM_AM_MAX_ATTEMPTS, 40);
// start RM
final MockRM rm1 = createMockRM(conf);
rm1.start();
MockNM nm1 =
new MockNM("127.0.0.1:1234" , 16382, rm1.getResourceTrackerService());
nm1.registerNode();
// submitting app
RMApp app1 = rm1.submitApp(200);
rm1.waitForState(app1.getApplicationId(), RMAppState.ACCEPTED);
MockAM am1 = launchAM(app1, rm1, nm1);
nm1.nodeHeartbeat(am1.getApplicationAttemptId(), 1, ContainerState.COMPLETE);
// Fail first AM.
am1.waitForState(RMAppAttemptState.FAILED);
// launch another AM.
MockAM am2 = launchAM(app1, rm1, nm1);
RMState rmState = rm1.getRMContext().getStateStore().loadState();
Map<ApplicationId, ApplicationStateData> rmAppState =
rmState.getApplicationState();
Assert.assertEquals(1, rmAppState.size());
Assert.assertEquals(app1.getState(), RMAppState.RUNNING);
Assert.assertEquals(app1.getAppAttempts()
.get(app1.getCurrentAppAttempt().getAppAttemptId())
.getAppAttemptState(), RMAppAttemptState.RUNNING);
// start new RM.
MockRM rm2 = createMockRM(conf);
rm2.start();
nm1.setResourceTrackerService(rm2.getResourceTrackerService());
NodeHeartbeatResponse res = nm1.nodeHeartbeat(true);
Assert.assertEquals(NodeAction.RESYNC, res.getNodeAction());
RMApp rmApp = rm2.getRMContext().getRMApps().get(app1.getApplicationId());
// application should be in ACCEPTED state
rm2.waitForState(app1.getApplicationId(), RMAppState.ACCEPTED);
Assert.assertEquals(RMAppState.ACCEPTED, rmApp.getState());
// new attempt should not be started
Assert.assertEquals(2, rmApp.getAppAttempts().size());
// am1 attempt should be in FAILED state where as am2 attempt should be in
// LAUNCHED state
rm2.waitForState(am1.getApplicationAttemptId(), RMAppAttemptState.FAILED);
rm2.waitForState(am2.getApplicationAttemptId(), RMAppAttemptState.LAUNCHED);
Assert.assertEquals(RMAppAttemptState.FAILED,
rmApp.getAppAttempts().get(am1.getApplicationAttemptId())
.getAppAttemptState());
Assert.assertEquals(RMAppAttemptState.LAUNCHED,
rmApp.getAppAttempts().get(am2.getApplicationAttemptId())
.getAppAttemptState());
NMContainerStatus status =
TestRMRestart.createNMContainerStatus(
am2.getApplicationAttemptId(), 1, ContainerState.COMPLETE);
nm1.registerNode(Arrays.asList(status), null);
rm2.waitForState(am2.getApplicationAttemptId(), RMAppAttemptState.FAILED);
launchAM(rmApp, rm2, nm1);
Assert.assertEquals(3, rmApp.getAppAttempts().size());
rm2.waitForState(rmApp.getCurrentAppAttempt().getAppAttemptId(),
RMAppAttemptState.RUNNING);
// Now restart RM ...
// Setting AMLivelinessMonitor interval to be 10 Secs.
conf.setInt(YarnConfiguration.RM_AM_EXPIRY_INTERVAL_MS, 10000);
MockRM rm3 = createMockRM(conf);
rm3.start();
// Wait for RM to process all the events as a part of rm recovery.
nm1.setResourceTrackerService(rm3.getResourceTrackerService());
rmApp = rm3.getRMContext().getRMApps().get(app1.getApplicationId());
// application should be in ACCEPTED state
rm3.waitForState(app1.getApplicationId(), RMAppState.ACCEPTED);
Assert.assertEquals(rmApp.getState(), RMAppState.ACCEPTED);
// new attempt should not be started
Assert.assertEquals(3, rmApp.getAppAttempts().size());
// am1 and am2 attempts should be in FAILED state where as am3 should be
// in LAUNCHED state
rm3.waitForState(am1.getApplicationAttemptId(), RMAppAttemptState.FAILED);
rm3.waitForState(am2.getApplicationAttemptId(), RMAppAttemptState.FAILED);
ApplicationAttemptId latestAppAttemptId =
rmApp.getCurrentAppAttempt().getAppAttemptId();
rm3.waitForState(latestAppAttemptId, RMAppAttemptState.LAUNCHED);
Assert.assertEquals(RMAppAttemptState.FAILED,
rmApp.getAppAttempts().get(am1.getApplicationAttemptId())
.getAppAttemptState());
Assert.assertEquals(RMAppAttemptState.FAILED,
rmApp.getAppAttempts().get(am2.getApplicationAttemptId())
.getAppAttemptState());
Assert.assertEquals(RMAppAttemptState.LAUNCHED,rmApp.getAppAttempts()
.get(latestAppAttemptId).getAppAttemptState());
rm3.waitForState(latestAppAttemptId, RMAppAttemptState.FAILED);
rm3.waitForState(rmApp.getApplicationId(), RMAppState.ACCEPTED);
Assert.assertEquals(4, rmApp.getAppAttempts().size());
Assert.assertEquals(RMAppAttemptState.FAILED,
rmApp.getAppAttempts().get(latestAppAttemptId).getAppAttemptState());
latestAppAttemptId = rmApp.getCurrentAppAttempt().getAppAttemptId();
// The 4th attempt has started but is not yet saved into RMStateStore
// It will be saved only when we launch AM.
// submitting app but not starting AM for it.
RMApp app2 = rm3.submitApp(200);
rm3.waitForState(app2.getApplicationId(), RMAppState.ACCEPTED);
Assert.assertEquals(1, app2.getAppAttempts().size());
rmState = rm3.getRMContext().getStateStore().loadState();
rmAppState =rmState.getApplicationState();
Assert.assertEquals(0,
rmAppState.get(app2.getApplicationId())
.getAttemptCount());
MockRM rm4 = createMockRM(conf);
rm4.start();
rmApp = rm4.getRMContext().getRMApps().get(app1.getApplicationId());
rm4.waitForState(rmApp.getApplicationId(), RMAppState.ACCEPTED);
// wait for the attempt to be created.
int timeoutSecs = 0;
while (rmApp.getAppAttempts().size() != 2 && timeoutSecs++ < 40) {
Thread.sleep(200);
}
Assert.assertEquals(4, rmApp.getAppAttempts().size());
Assert.assertEquals(RMAppState.ACCEPTED, rmApp.getState());
rm4.waitForState(latestAppAttemptId, RMAppAttemptState.SCHEDULED);
Assert.assertEquals(RMAppAttemptState.SCHEDULED, rmApp.getAppAttempts()
.get(latestAppAttemptId).getAppAttemptState());
// The initial application for which an AM was not started should be in
// ACCEPTED state with one application attempt started.
app2 = rm4.getRMContext().getRMApps().get(app2.getApplicationId());
rm4.waitForState(app2.getApplicationId(), RMAppState.ACCEPTED);
Assert.assertEquals(RMAppState.ACCEPTED, app2.getState());
Assert.assertEquals(1, app2.getAppAttempts().size());
rm4.waitForState(app2.getCurrentAppAttempt().getAppAttemptId(),
RMAppAttemptState.SCHEDULED);
Assert.assertEquals(RMAppAttemptState.SCHEDULED, app2
.getCurrentAppAttempt().getAppAttemptState());
}
// Test RM restarts after previous attempt succeeded and was saved into state
// store but before the RMAppAttempt notifies RMApp that it has succeeded. On
// recovery, RMAppAttempt should send the AttemptFinished event to RMApp so
// that RMApp can recover its state.
@Test (timeout = 60000)
public void testRMRestartWaitForPreviousSucceededAttempt() throws Exception {
conf.setInt(YarnConfiguration.RM_AM_MAX_ATTEMPTS, 2);
FileSystemRMStateStore fileStore = new FileSystemRMStateStore(){
int count = 0;
@Override
public void updateApplicationStateInternal(ApplicationId appId,
ApplicationStateData appStateData) throws Exception {
if (count == 0) {
// do nothing; simulate app final state is not saved.
LOG.info(appId + " final state is not saved.");
count++;
} else {
super.updateApplicationStateInternal(appId, appStateData);
}
}
};
fileStore.init(conf);
// start RM
MockRM rm1 = createMockRM(conf);
rm1.start();
((RMContextImpl)rm1.getRMContext()).setStateStore(fileStore);
fileStore.setRMDispatcher(rm1.getRMContext().getDispatcher());
fileStore.start();
MockNM nm1 = rm1.registerNode("127.0.0.1:1234", 15120);
RMApp app0 = rm1.submitApp(200);
MockAM am0 = MockRM.launchAndRegisterAM(app0, rm1, nm1);
FinishApplicationMasterRequest req =
FinishApplicationMasterRequest.newInstance(
FinalApplicationStatus.SUCCEEDED, "", "");
am0.unregisterAppAttempt(req, true);
am0.waitForState(RMAppAttemptState.FINISHING);
// app final state is not saved. This guarantees that RMApp cannot be
// recovered via its own saved state, but only via the event notification
// from the RMAppAttempt on recovery.
RMState rmState = rm1.getRMContext().getStateStore().loadState();
Map<ApplicationId, ApplicationStateData> rmAppState =
rmState.getApplicationState();
Assert.assertNull(rmAppState.get(app0.getApplicationId()).getState());
// start RM
MockRM rm2 = createMockRM(conf);
nm1.setResourceTrackerService(rm2.getResourceTrackerService());
rm2.start();
rm2.waitForState(app0.getCurrentAppAttempt().getAppAttemptId(),
RMAppAttemptState.FINISHED);
rm2.waitForState(app0.getApplicationId(), RMAppState.FINISHED);
// app final state is saved via the finish event from attempt.
rmState = rm2.getRMContext().getStateStore().loadState();
rmAppState =rmState.getApplicationState();
Assert.assertEquals(RMAppState.FINISHED,
rmAppState.get(app0.getApplicationId()).getState());
}
@Test (timeout = 60000)
public void testRMRestartFailedApp() throws Exception {
conf.setInt(YarnConfiguration.RM_AM_MAX_ATTEMPTS, 1);
// start RM
MockRM rm1 = createMockRM(conf);
rm1.start();
MockNM nm1 =
new MockNM("127.0.0.1:1234", 15120, rm1.getResourceTrackerService());
nm1.registerNode();
// create app and launch the AM
RMApp app0 = rm1.submitApp(200);
MockAM am0 = launchAM(app0, rm1, nm1);
// fail the AM by sending CONTAINER_FINISHED event without registering.
nm1.nodeHeartbeat(am0.getApplicationAttemptId(), 1, ContainerState.COMPLETE);
am0.waitForState(RMAppAttemptState.FAILED);
rm1.waitForState(app0.getApplicationId(), RMAppState.FAILED);
// assert the app/attempt failed state is saved.
RMState rmState = rm1.getRMContext().getStateStore().loadState();
Map<ApplicationId, ApplicationStateData> rmAppState =
rmState.getApplicationState();
ApplicationStateData appState = rmAppState.get(app0.getApplicationId());
Assert.assertEquals(RMAppState.FAILED, appState.getState());
Assert.assertEquals(RMAppAttemptState.FAILED,
appState.getAttempt(am0.getApplicationAttemptId()).getState());
// start new RM
MockRM rm2 = createMockRM(conf);
rm2.start();
RMApp loadedApp0 = rm2.getRMContext().getRMApps().get(app0.getApplicationId());
rm2.waitForState(app0.getApplicationId(), RMAppState.FAILED);
rm2.waitForState(am0.getApplicationAttemptId(), RMAppAttemptState.FAILED);
// no new attempt is created.
Assert.assertEquals(1, loadedApp0.getAppAttempts().size());
verifyAppReportAfterRMRestart(app0, rm2);
Assert.assertTrue(app0.getDiagnostics().toString()
.contains("Failing the application."));
// failed diagnostics from attempt is lost because the diagnostics from
// attempt is not yet available by the time app is saving the app state.
}
@Test (timeout = 60000)
public void testRMRestartKilledApp() throws Exception{
conf.setInt(YarnConfiguration.RM_AM_MAX_ATTEMPTS,
YarnConfiguration.DEFAULT_RM_AM_MAX_ATTEMPTS);
// start RM
MockRM rm1 = createMockRM(conf);
rm1.start();
MockNM nm1 =
new MockNM("127.0.0.1:1234", 15120, rm1.getResourceTrackerService());
nm1.registerNode();
// create app and launch the AM
RMApp app0 = rm1.submitApp(200);
MockAM am0 = launchAM(app0, rm1, nm1);
// kill the app.
rm1.killApp(app0.getApplicationId());
rm1.waitForState(app0.getApplicationId(), RMAppState.KILLED);
rm1.waitForState(am0.getApplicationAttemptId(), RMAppAttemptState.KILLED);
// killed state is saved.
RMState rmState = rm1.getRMContext().getStateStore().loadState();
Map<ApplicationId, ApplicationStateData> rmAppState =
rmState.getApplicationState();
ApplicationStateData appState = rmAppState.get(app0.getApplicationId());
Assert.assertEquals(RMAppState.KILLED, appState.getState());
Assert.assertEquals(RMAppAttemptState.KILLED,
appState.getAttempt(am0.getApplicationAttemptId()).getState());
String trackingUrl = app0.getCurrentAppAttempt().getOriginalTrackingUrl();
Assert.assertNotNull(trackingUrl);
// restart rm
MockRM rm2 = createMockRM(conf);
rm2.start();
RMApp loadedApp0 = rm2.getRMContext().getRMApps().get(app0.getApplicationId());
rm2.waitForState(app0.getApplicationId(), RMAppState.KILLED);
rm2.waitForState(am0.getApplicationAttemptId(), RMAppAttemptState.KILLED);
// no new attempt is created.
Assert.assertEquals(1, loadedApp0.getAppAttempts().size());
ApplicationReport appReport = verifyAppReportAfterRMRestart(app0, rm2);
Assert.assertEquals(app0.getDiagnostics().toString(),
appReport.getDiagnostics());
Assert.assertEquals(trackingUrl, loadedApp0.getCurrentAppAttempt()
.getOriginalTrackingUrl());
}
@Test (timeout = 60000)
public void testRMRestartKilledAppWithNoAttempts() throws Exception {
FileSystemRMStateStore fileStore = new FileSystemRMStateStore(){
@Override
public synchronized void storeApplicationAttemptStateInternal(
ApplicationAttemptId attemptId,
ApplicationAttemptStateData attemptStateData) throws Exception {
// ignore attempt saving request.
}
@Override
public synchronized void updateApplicationAttemptStateInternal(
ApplicationAttemptId attemptId,
ApplicationAttemptStateData attemptStateData) throws Exception {
// ignore attempt saving request.
}
};
fileStore.init(conf);
// start RM
MockRM rm1 = createMockRM(conf);
rm1.start();
((RMContextImpl)rm1.getRMContext()).setStateStore(fileStore);
fileStore.setRMDispatcher(rm1.getRMContext().getDispatcher());
fileStore.start();
// create app
RMApp app0 =
rm1.submitApp(200, "name", "user",
new HashMap<ApplicationAccessType, String>(), false, "default", -1,
null, "MAPREDUCE", false);
// kill the app.
rm1.killApp(app0.getApplicationId());
rm1.waitForState(app0.getApplicationId(), RMAppState.KILLED);
// restart rm
MockRM rm2 = createMockRM(conf);
rm2.start();
RMApp loadedApp0 =
rm2.getRMContext().getRMApps().get(app0.getApplicationId());
rm2.waitForState(loadedApp0.getApplicationId(), RMAppState.KILLED);
Assert.assertTrue(loadedApp0.getAppAttempts().size() == 0);
}
@Test (timeout = 60000)
public void testRMRestartSucceededApp() throws Exception {
conf.setInt(YarnConfiguration.RM_AM_MAX_ATTEMPTS,
YarnConfiguration.DEFAULT_RM_AM_MAX_ATTEMPTS);
// start RM
MockRM rm1 = createMockRM(conf);
rm1.start();
MockNM nm1 =
new MockNM("127.0.0.1:1234", 15120, rm1.getResourceTrackerService());
nm1.registerNode();
// create an app and finish the app.
RMApp app0 = rm1.submitApp(200);
MockAM am0 = launchAM(app0, rm1, nm1);
// unregister am
FinishApplicationMasterRequest req =
FinishApplicationMasterRequest.newInstance(
FinalApplicationStatus.SUCCEEDED, "diagnostics", "trackingUrl");
finishApplicationMaster(app0, rm1, nm1, am0, req);
// check the state store about the unregistered info.
RMState rmState = rm1.getRMContext().getStateStore().loadState();
Map<ApplicationId, ApplicationStateData> rmAppState =
rmState.getApplicationState();
ApplicationStateData appState = rmAppState.get(app0.getApplicationId());
ApplicationAttemptStateData attemptState0 =
appState.getAttempt(am0.getApplicationAttemptId());
Assert.assertEquals("diagnostics", attemptState0.getDiagnostics());
Assert.assertEquals(FinalApplicationStatus.SUCCEEDED,
attemptState0.getFinalApplicationStatus());
Assert.assertEquals("trackingUrl", attemptState0.getFinalTrackingUrl());
Assert.assertEquals(app0.getFinishTime(), appState.getFinishTime());
// restart rm
MockRM rm2 = createMockRM(conf);
rm2.start();
// verify application report returns the same app info as the app info
// before RM restarts.
ApplicationReport appReport = verifyAppReportAfterRMRestart(app0, rm2);
Assert.assertEquals(FinalApplicationStatus.SUCCEEDED,
appReport.getFinalApplicationStatus());
Assert.assertEquals("trackingUrl", appReport.getOriginalTrackingUrl());
}
@Test (timeout = 60000)
public void testRMRestartGetApplicationList() throws Exception {
conf.setInt(YarnConfiguration.RM_AM_MAX_ATTEMPTS, 1);
// start RM
MockRM rm1 = createMockRM(conf);
rm1.start();
MockNM nm1 =
new MockNM("127.0.0.1:1234", 15120, rm1.getResourceTrackerService());
nm1.registerNode();
// a succeeded app.
RMApp app0 = rm1.submitApp(200, "name", "user", null,
false, "default", 1, null, "myType");
MockAM am0 = launchAM(app0, rm1, nm1);
finishApplicationMaster(app0, rm1, nm1, am0);
// a failed app.
RMApp app1 = rm1.submitApp(200, "name", "user", null,
false, "default", 1, null, "myType");
MockAM am1 = launchAM(app1, rm1, nm1);
// fail the AM by sending CONTAINER_FINISHED event without registering.
nm1.nodeHeartbeat(am1.getApplicationAttemptId(), 1, ContainerState.COMPLETE);
am1.waitForState(RMAppAttemptState.FAILED);
rm1.waitForState(app1.getApplicationId(), RMAppState.FAILED);
// a killed app.
RMApp app2 = rm1.submitApp(200, "name", "user", null,
false, "default", 1, null, "myType");
MockAM am2 = launchAM(app2, rm1, nm1);
rm1.killApp(app2.getApplicationId());
rm1.waitForState(app2.getApplicationId(), RMAppState.KILLED);
rm1.waitForState(am2.getApplicationAttemptId(), RMAppAttemptState.KILLED);
// restart rm
MockRM rm2 = new MockRM(conf) {
@Override
protected RMAppManager createRMAppManager() {
return spy(super.createRMAppManager());
}
};
rms.add(rm2);
rm2.start();
GetApplicationsRequest request1 =
GetApplicationsRequest.newInstance(EnumSet.of(
YarnApplicationState.FINISHED, YarnApplicationState.KILLED,
YarnApplicationState.FAILED));
GetApplicationsResponse response1 =
rm2.getClientRMService().getApplications(request1);
List<ApplicationReport> appList1 = response1.getApplicationList();
// assert all applications exist according to application state after RM
// restarts.
boolean forApp0 = false, forApp1 = false, forApp2 = false;
for (ApplicationReport report : appList1) {
if (report.getApplicationId().equals(app0.getApplicationId())) {
Assert.assertEquals(YarnApplicationState.FINISHED,
report.getYarnApplicationState());
forApp0 = true;
}
if (report.getApplicationId().equals(app1.getApplicationId())) {
Assert.assertEquals(YarnApplicationState.FAILED,
report.getYarnApplicationState());
forApp1 = true;
}
if (report.getApplicationId().equals(app2.getApplicationId())) {
Assert.assertEquals(YarnApplicationState.KILLED,
report.getYarnApplicationState());
forApp2 = true;
}
}
Assert.assertTrue(forApp0 && forApp1 && forApp2);
// assert all applications exist according to application type after RM
// restarts.
Set<String> appTypes = new HashSet<String>();
appTypes.add("myType");
GetApplicationsRequest request2 =
GetApplicationsRequest.newInstance(appTypes);
GetApplicationsResponse response2 =
rm2.getClientRMService().getApplications(request2);
List<ApplicationReport> appList2 = response2.getApplicationList();
Assert.assertTrue(3 == appList2.size());
// check application summary is logged for the completed apps after RM restart.
verify(rm2.getRMAppManager(), times(3)).logApplicationSummary(
isA(ApplicationId.class));
}
private MockAM launchAM(RMApp app, MockRM rm, MockNM nm)
throws Exception {
RMAppAttempt attempt = app.getCurrentAppAttempt();
nm.nodeHeartbeat(true);
MockAM am = rm.sendAMLaunched(attempt.getAppAttemptId());
am.registerAppAttempt();
rm.waitForState(app.getApplicationId(), RMAppState.RUNNING);
return am;
}
private ApplicationReport verifyAppReportAfterRMRestart(RMApp app, MockRM rm)
throws Exception {
GetApplicationReportRequest reportRequest =
GetApplicationReportRequest.newInstance(app.getApplicationId());
GetApplicationReportResponse response =
rm.getClientRMService().getApplicationReport(reportRequest);
ApplicationReport report = response.getApplicationReport();
Assert.assertEquals(app.getStartTime(), report.getStartTime());
Assert.assertEquals(app.getFinishTime(), report.getFinishTime());
Assert.assertEquals(app.createApplicationState(),
report.getYarnApplicationState());
Assert.assertTrue(1 == report.getProgress());
return response.getApplicationReport();
}
private void finishApplicationMaster(RMApp rmApp, MockRM rm, MockNM nm,
MockAM am) throws Exception {
final FinishApplicationMasterRequest req =
FinishApplicationMasterRequest.newInstance(
FinalApplicationStatus.SUCCEEDED, "", "");
finishApplicationMaster(rmApp, rm, nm, am, req);
}
private void finishApplicationMaster(RMApp rmApp, MockRM rm, MockNM nm,
MockAM am, FinishApplicationMasterRequest req) throws Exception {
am.unregisterAppAttempt(req,true);
am.waitForState(RMAppAttemptState.FINISHING);
nm.nodeHeartbeat(am.getApplicationAttemptId(), 1, ContainerState.COMPLETE);
am.waitForState(RMAppAttemptState.FINISHED);
rm.waitForState(rmApp.getApplicationId(), RMAppState.FINISHED);
// check that app/attempt is saved with the final state
RMState rmState = rm.getRMContext().getStateStore().loadState();
Map<ApplicationId, ApplicationStateData> rmAppState =
rmState.getApplicationState();
ApplicationStateData appState = rmAppState.get(rmApp.getApplicationId());
Assert
.assertEquals(RMAppState.FINISHED, appState.getState());
Assert.assertEquals(RMAppAttemptState.FINISHED,
appState.getAttempt(am.getApplicationAttemptId()).getState());
}
@Test (timeout = 60000)
public void testRMRestartOnMaxAppAttempts() throws Exception {
conf.setInt(YarnConfiguration.RM_AM_MAX_ATTEMPTS,
YarnConfiguration.DEFAULT_RM_AM_MAX_ATTEMPTS);
MockRM rm1 = createMockRM(conf);
rm1.start();
MockNM nm1 =
new MockNM("127.0.0.1:1234", 15120, rm1.getResourceTrackerService());
nm1.registerNode();
// submit an app with maxAppAttempts equals to 1
RMApp app1 = rm1.submitApp(200, "name", "user",
new HashMap<ApplicationAccessType, String>(), false, "default", 1,
null);
// submit an app with maxAppAttempts equals to -1
RMApp app2 = rm1.submitApp(200, "name", "user",
new HashMap<ApplicationAccessType, String>(), false, "default", -1,
null);
// assert app1 info is saved
RMState rmState = rm1.getRMContext().getStateStore().loadState();
Map<ApplicationId, ApplicationStateData> rmAppState =
rmState.getApplicationState();
ApplicationStateData appState = rmAppState.get(app1.getApplicationId());
Assert.assertNotNull(appState);
Assert.assertEquals(0, appState.getAttemptCount());
Assert.assertEquals(appState.getApplicationSubmissionContext()
.getApplicationId(), app1.getApplicationSubmissionContext()
.getApplicationId());
// Allocate the AM
nm1.nodeHeartbeat(true);
RMAppAttempt attempt = app1.getCurrentAppAttempt();
ApplicationAttemptId attemptId1 = attempt.getAppAttemptId();
rm1.waitForState(attemptId1, RMAppAttemptState.ALLOCATED);
rmState = rm1.getRMContext().getStateStore().loadState();
rmAppState = rmState.getApplicationState();
appState = rmAppState.get(app1.getApplicationId());
Assert.assertEquals(1, appState.getAttemptCount());
ApplicationAttemptStateData attemptState =
appState.getAttempt(attemptId1);
Assert.assertNotNull(attemptState);
Assert.assertEquals(BuilderUtils.newContainerId(attemptId1, 1),
attemptState.getMasterContainer().getId());
// Setting AMLivelinessMonitor interval to be 3 Secs.
conf.setInt(YarnConfiguration.RM_AM_EXPIRY_INTERVAL_MS, 3000);
// start new RM
MockRM rm2 = createMockRM(conf);
rm2.start();
// verify that maxAppAttempts is set to global value
Assert.assertEquals(2,
rm2.getRMContext().getRMApps().get(app2.getApplicationId())
.getMaxAppAttempts());
// app1 and app2 are loaded back, but app1 failed because it's
// hitting max-retry.
Assert.assertEquals(2, rm2.getRMContext().getRMApps().size());
rm2.waitForState(app1.getApplicationId(), RMAppState.FAILED);
rm2.waitForState(app2.getApplicationId(), RMAppState.ACCEPTED);
// app1 failed state is saved in state store. app2 final saved state is not
// determined yet.
rmState = rm2.getRMContext().getStateStore().loadState();
rmAppState =rmState.getApplicationState();
Assert.assertEquals(RMAppState.FAILED,
rmAppState.get(app1.getApplicationId()).getState());
Assert.assertNull(rmAppState.get(app2.getApplicationId()).getState());
}
@Test (timeout = 60000)
public void testDelegationTokenRestoredInDelegationTokenRenewer()
throws Exception {
conf.setInt(YarnConfiguration.RM_AM_MAX_ATTEMPTS, 2);
conf.set(CommonConfigurationKeysPublic.HADOOP_SECURITY_AUTHENTICATION,
"kerberos");
UserGroupInformation.setConfiguration(conf);
MockRM rm1 = new TestSecurityMockRM(conf);
rm1.start();
HashSet<Token<RMDelegationTokenIdentifier>> tokenSet =
new HashSet<Token<RMDelegationTokenIdentifier>>();
// create an empty credential
Credentials ts = new Credentials();
// create tokens and add into credential
Text userText1 = new Text("user1");
RMDelegationTokenIdentifier dtId1 =
new RMDelegationTokenIdentifier(userText1, new Text("renewer1"),
userText1);
Token<RMDelegationTokenIdentifier> token1 =
new Token<RMDelegationTokenIdentifier>(dtId1,
rm1.getRMContext().getRMDelegationTokenSecretManager());
SecurityUtil.setTokenService(token1, rmAddr);
ts.addToken(userText1, token1);
tokenSet.add(token1);
Text userText2 = new Text("user2");
RMDelegationTokenIdentifier dtId2 =
new RMDelegationTokenIdentifier(userText2, new Text("renewer2"),
userText2);
Token<RMDelegationTokenIdentifier> token2 =
new Token<RMDelegationTokenIdentifier>(dtId2,
rm1.getRMContext().getRMDelegationTokenSecretManager());
SecurityUtil.setTokenService(token2, rmAddr);
ts.addToken(userText2, token2);
tokenSet.add(token2);
// submit an app with customized credential
RMApp app = rm1.submitApp(200, "name", "user",
new HashMap<ApplicationAccessType, String>(), false, "default", 1, ts);
// assert app info is saved
RMState rmState = rm1.getRMContext().getStateStore().loadState();
Map<ApplicationId, ApplicationStateData> rmAppState =
rmState.getApplicationState();
ApplicationStateData appState = rmAppState.get(app.getApplicationId());
Assert.assertNotNull(appState);
// assert delegation tokens exist in rm1 DelegationTokenRenewr
Assert.assertEquals(tokenSet, rm1.getRMContext()
.getDelegationTokenRenewer().getDelegationTokens());
// assert delegation tokens are saved
DataOutputBuffer dob = new DataOutputBuffer();
ts.writeTokenStorageToStream(dob);
ByteBuffer securityTokens =
ByteBuffer.wrap(dob.getData(), 0, dob.getLength());
securityTokens.rewind();
Assert.assertEquals(securityTokens, appState
.getApplicationSubmissionContext().getAMContainerSpec()
.getTokens());
// start new RM
MockRM rm2 = new TestSecurityMockRM(conf);
rm2.start();
// Need to wait for a while as now token renewal happens on another thread
// and is asynchronous in nature.
waitForTokensToBeRenewed(rm2, tokenSet);
// verify tokens are properly populated back to rm2 DelegationTokenRenewer
Assert.assertEquals(tokenSet, rm2.getRMContext()
.getDelegationTokenRenewer().getDelegationTokens());
}
private void waitForTokensToBeRenewed(MockRM rm2,
HashSet<Token<RMDelegationTokenIdentifier>> tokenSet) throws Exception {
// Max wait time to get the token renewal can be kept as 1sec (100 * 10ms)
int waitCnt = 100;
while (waitCnt-- > 0) {
if (tokenSet.equals(rm2.getRMContext().getDelegationTokenRenewer()
.getDelegationTokens())) {
// Stop waiting as tokens are populated to DelegationTokenRenewer.
break;
} else {
Thread.sleep(10);
}
}
}
@Test (timeout = 60000)
public void testAppAttemptTokensRestoredOnRMRestart() throws Exception {
conf.setInt(YarnConfiguration.RM_AM_MAX_ATTEMPTS, 2);
conf.set(CommonConfigurationKeysPublic.HADOOP_SECURITY_AUTHENTICATION,
"kerberos");
UserGroupInformation.setConfiguration(conf);
MockRM rm1 = new TestSecurityMockRM(conf);
rm1.start();
MockNM nm1 =
new MockNM("0.0.0.0:4321", 15120, rm1.getResourceTrackerService());
nm1.registerNode();
// submit an app
RMApp app1 =
rm1.submitApp(200, "name", "user",
new HashMap<ApplicationAccessType, String>(), "default");
// assert app info is saved
RMState rmState = rm1.getRMContext().getStateStore().loadState();
Map<ApplicationId, ApplicationStateData> rmAppState =
rmState.getApplicationState();
ApplicationStateData appState = rmAppState.get(app1.getApplicationId());
Assert.assertNotNull(appState);
// Allocate the AM
nm1.nodeHeartbeat(true);
RMAppAttempt attempt1 = app1.getCurrentAppAttempt();
ApplicationAttemptId attemptId1 = attempt1.getAppAttemptId();
rm1.waitForState(attemptId1, RMAppAttemptState.ALLOCATED);
// assert attempt info is saved
rmState = rm1.getRMContext().getStateStore().loadState();
rmAppState = rmState.getApplicationState();
appState = rmAppState.get(app1.getApplicationId());
ApplicationAttemptStateData attemptState = appState.getAttempt(attemptId1);
Assert.assertNotNull(attemptState);
Assert.assertEquals(BuilderUtils.newContainerId(attemptId1, 1),
attemptState.getMasterContainer().getId());
// the clientTokenMasterKey that are generated when
// RMAppAttempt is created,
byte[] clientTokenMasterKey =
attempt1.getClientTokenMasterKey().getEncoded();
// assert application credentials are saved
Credentials savedCredentials = attemptState.getAppAttemptTokens();
Assert.assertArrayEquals("client token master key not saved",
clientTokenMasterKey, savedCredentials.getSecretKey(
RMStateStore.AM_CLIENT_TOKEN_MASTER_KEY_NAME));
// start new RM
MockRM rm2 = new TestSecurityMockRM(conf);
rm2.start();
RMApp loadedApp1 =
rm2.getRMContext().getRMApps().get(app1.getApplicationId());
RMAppAttempt loadedAttempt1 = loadedApp1.getRMAppAttempt(attemptId1);
// assert loaded attempt recovered
Assert.assertNotNull(loadedAttempt1);
// assert client token master key is recovered back to api-versioned
// client token master key
Assert.assertEquals("client token master key not restored",
attempt1.getClientTokenMasterKey(),
loadedAttempt1.getClientTokenMasterKey());
// assert ClientTokenSecretManager also knows about the key
Assert.assertArrayEquals(clientTokenMasterKey,
rm2.getClientToAMTokenSecretManager().getMasterKey(attemptId1)
.getEncoded());
// assert AMRMTokenSecretManager also knows about the AMRMToken password
Token<AMRMTokenIdentifier> amrmToken = loadedAttempt1.getAMRMToken();
Assert.assertArrayEquals(amrmToken.getPassword(),
rm2.getRMContext().getAMRMTokenSecretManager().retrievePassword(
amrmToken.decodeIdentifier()));
}
@Test (timeout = 60000)
public void testRMDelegationTokenRestoredOnRMRestart() throws Exception {
conf.setInt(YarnConfiguration.RM_AM_MAX_ATTEMPTS, 2);
conf.set(
CommonConfigurationKeysPublic.HADOOP_SECURITY_AUTHENTICATION,
"kerberos");
conf.set(YarnConfiguration.RM_ADDRESS, "localhost:8032");
UserGroupInformation.setConfiguration(conf);
MockRM rm1 = new TestSecurityMockRM(conf);
rm1.start();
// create an empty credential
Credentials ts = new Credentials();
// request a token and add into credential
GetDelegationTokenRequest request1 =
GetDelegationTokenRequest.newInstance("renewer1");
UserGroupInformation.getCurrentUser().setAuthenticationMethod(
AuthMethod.KERBEROS);
GetDelegationTokenResponse response1 =
rm1.getClientRMService().getDelegationToken(request1);
org.apache.hadoop.yarn.api.records.Token delegationToken1 =
response1.getRMDelegationToken();
Token<RMDelegationTokenIdentifier> token1 =
ConverterUtils.convertFromYarn(delegationToken1, rmAddr);
RMDelegationTokenIdentifier dtId1 = token1.decodeIdentifier();
HashSet<RMDelegationTokenIdentifier> tokenIdentSet =
new HashSet<RMDelegationTokenIdentifier>();
ts.addToken(token1.getService(), token1);
tokenIdentSet.add(dtId1);
// submit an app with customized credential
RMApp app = rm1.submitApp(200, "name", "user",
new HashMap<ApplicationAccessType, String>(), false, "default", 1, ts);
// assert app info is saved
RMState rmState = rm1.getRMContext().getStateStore().loadState();
Map<ApplicationId, ApplicationStateData> rmAppState =
rmState.getApplicationState();
ApplicationStateData appState = rmAppState.get(app.getApplicationId());
Assert.assertNotNull(appState);
// assert all master keys are saved
Set<DelegationKey> allKeysRM1 = rm1.getRMContext()
.getRMDelegationTokenSecretManager().getAllMasterKeys();
rmState = rm1.getRMContext().getStateStore().loadState();
Set<DelegationKey> rmDTMasterKeyState =
rmState.getRMDTSecretManagerState().getMasterKeyState();
for(DelegationKey expectedKey:allKeysRM1){
boolean foundIt=false;
for(DelegationKey gotKey:rmDTMasterKeyState){
if(expectedKey.getKeyId()== gotKey.getKeyId() &&
Arrays.equals(expectedKey.getEncodedKey(),gotKey.getEncodedKey())){
foundIt=true;
break;
}
}
Assert.assertTrue(foundIt);
}
// assert all tokens are saved
Map<RMDelegationTokenIdentifier, Long> allTokensRM1 =
rm1.getRMContext().getRMDelegationTokenSecretManager().getAllTokens();
Assert.assertEquals(tokenIdentSet, allTokensRM1.keySet());
rmState = rm1.getRMContext().getStateStore().loadState();
Map<RMDelegationTokenIdentifier, Long> rmDTState =
rmState.getRMDTSecretManagerState().getTokenState();
Assert.assertEquals(allTokensRM1.size(), rmDTState.size());
for(RMDelegationTokenIdentifier identifier:allTokensRM1.keySet()){
Assert.assertEquals(allTokensRM1.get(identifier),
rmDTState.get(identifier));
}
// assert sequence number is saved
rmState = rm1.getRMContext().getStateStore().loadState();
Assert.assertEquals(rm1.getRMContext().getRMDelegationTokenSecretManager()
.getLatestDTSequenceNumber(), rmState.getRMDTSecretManagerState()
.getDTSequenceNumber());
// request one more token
GetDelegationTokenRequest request2 =
GetDelegationTokenRequest.newInstance("renewer2");
GetDelegationTokenResponse response2 =
rm1.getClientRMService().getDelegationToken(request2);
org.apache.hadoop.yarn.api.records.Token delegationToken2 =
response2.getRMDelegationToken();
Token<RMDelegationTokenIdentifier> token2 =
ConverterUtils.convertFromYarn(delegationToken2, rmAddr);
RMDelegationTokenIdentifier dtId2 = token2.decodeIdentifier();
// cancel token2
try{
rm1.getRMContext().getRMDelegationTokenSecretManager().cancelToken(token2,
UserGroupInformation.getCurrentUser().getUserName());
} catch(Exception e) {
Assert.fail();
}
// Assert the token which has the latest delegationTokenSequenceNumber is removed
Assert.assertEquals(rm1.getRMContext().getRMDelegationTokenSecretManager()
.getLatestDTSequenceNumber(), dtId2.getSequenceNumber());
rmState = rm1.getRMContext().getStateStore().loadState();
rmDTState = rmState.getRMDTSecretManagerState().getTokenState();
Assert.assertFalse(rmDTState.containsKey(dtId2));
// start new RM
MockRM rm2 = new TestSecurityMockRM(conf);
rm2.start();
// assert master keys and tokens are populated back to DTSecretManager
Map<RMDelegationTokenIdentifier, Long> allTokensRM2 =
rm2.getRMContext().getRMDelegationTokenSecretManager().getAllTokens();
Assert.assertEquals(allTokensRM2.keySet(), allTokensRM1.keySet());
// rm2 has its own master keys when it starts, we use containsAll here
rmDTMasterKeyState =rm2.getRMContext().getRMDelegationTokenSecretManager()
.getAllMasterKeys();
for(DelegationKey expectedKey:allKeysRM1){
boolean foundIt=false;
for(DelegationKey gotKey:rmDTMasterKeyState){
if(expectedKey.getKeyId()== gotKey.getKeyId() &&
Arrays.equals(expectedKey.getEncodedKey(),gotKey.getEncodedKey())){
foundIt=true;
break;
}
}
Assert.assertTrue(foundIt);
}
// assert sequenceNumber is properly recovered,
// even though the token which has max sequenceNumber is not stored
Assert.assertEquals(rm1.getRMContext().getRMDelegationTokenSecretManager()
.getLatestDTSequenceNumber(), rm2.getRMContext()
.getRMDelegationTokenSecretManager().getLatestDTSequenceNumber());
// renewDate before renewing
Long renewDateBeforeRenew = allTokensRM2.get(dtId1);
try{
// Sleep for one millisecond to make sure renewDataAfterRenew is greater
Thread.sleep(1);
// renew recovered token
rm2.getRMContext().getRMDelegationTokenSecretManager().renewToken(
token1, "renewer1");
} catch(Exception e) {
Assert.fail();
}
allTokensRM2 = rm2.getRMContext().getRMDelegationTokenSecretManager()
.getAllTokens();
Long renewDateAfterRenew = allTokensRM2.get(dtId1);
// assert token is renewed
Assert.assertTrue(renewDateAfterRenew > renewDateBeforeRenew);
// assert new token is added into state store
rmState = rm2.getRMContext().getStateStore().loadState();
rmDTState = rmState.getRMDTSecretManagerState().getTokenState();
Assert.assertTrue(rmDTState.containsValue(renewDateAfterRenew));
// assert old token is removed from state store
Assert.assertFalse(rmDTState.containsValue(renewDateBeforeRenew));
try{
rm2.getRMContext().getRMDelegationTokenSecretManager().cancelToken(token1,
UserGroupInformation.getCurrentUser().getUserName());
} catch(Exception e) {
Assert.fail();
}
// assert token is removed from state after its cancelled
allTokensRM2 = rm2.getRMContext().getRMDelegationTokenSecretManager()
.getAllTokens();
Assert.assertFalse(allTokensRM2.containsKey(dtId1));
rmState = rm2.getRMContext().getStateStore().loadState();
rmDTState = rmState.getRMDTSecretManagerState().getTokenState();
Assert.assertFalse(rmDTState.containsKey(dtId1));
}
// This is to test submit an application to the new RM with the old delegation
// token got from previous RM.
@Test (timeout = 60000)
public void testAppSubmissionWithOldDelegationTokenAfterRMRestart()
throws Exception {
conf.setInt(YarnConfiguration.RM_AM_MAX_ATTEMPTS, 2);
conf.set(CommonConfigurationKeysPublic.HADOOP_SECURITY_AUTHENTICATION,
"kerberos");
conf.set(YarnConfiguration.RM_ADDRESS, "localhost:8032");
UserGroupInformation.setConfiguration(conf);
MockRM rm1 = new TestSecurityMockRM(conf);
rm1.start();
GetDelegationTokenRequest request1 =
GetDelegationTokenRequest.newInstance("renewer1");
UserGroupInformation.getCurrentUser().setAuthenticationMethod(
AuthMethod.KERBEROS);
GetDelegationTokenResponse response1 =
rm1.getClientRMService().getDelegationToken(request1);
Token<RMDelegationTokenIdentifier> token1 =
ConverterUtils.convertFromYarn(response1.getRMDelegationToken(), rmAddr);
// start new RM
MockRM rm2 = new TestSecurityMockRM(conf);
rm2.start();
// submit an app with the old delegation token got from previous RM.
Credentials ts = new Credentials();
ts.addToken(token1.getService(), token1);
RMApp app = rm2.submitApp(200, "name", "user",
new HashMap<ApplicationAccessType, String>(), false, "default", 1, ts);
rm2.waitForState(app.getApplicationId(), RMAppState.ACCEPTED);
}
@Test (timeout = 60000)
public void testRMStateStoreDispatcherDrainedOnRMStop() throws Exception {
FileSystemRMStateStore fileStore = new FileSystemRMStateStore(){
volatile boolean wait = true;
@Override
public void serviceStop() throws Exception {
// Unblock app saving request.
wait = false;
super.serviceStop();
}
@Override
protected void handleStoreEvent(RMStateStoreEvent event) {
// Block app saving request.
// Skip if synchronous updation of DTToken
if (!(event instanceof RMStateStoreAMRMTokenEvent)
&& !(event instanceof RMStateStoreRMDTEvent)
&& !(event instanceof RMStateStoreRMDTMasterKeyEvent)) {
while (wait);
}
super.handleStoreEvent(event);
}
};
fileStore.init(conf);
// start RM
final MockRM rm1 = createMockRM(conf);
rm1.start();
((RMContextImpl)rm1.getRMContext()).setStateStore(fileStore);
fileStore.setRMDispatcher(rm1.getRMContext().getDispatcher());
fileStore.start();
// create apps.
final ArrayList<RMApp> appList = new ArrayList<RMApp>();
final int NUM_APPS = 5;
for (int i = 0; i < NUM_APPS; i++) {
RMApp app = rm1.submitApp(200, "name", "user",
new HashMap<ApplicationAccessType, String>(), false,
"default", -1, null, "MAPREDUCE", false);
appList.add(app);
rm1.waitForState(app.getApplicationId(), RMAppState.NEW_SAVING);
}
// all apps's saving request are now enqueued to RMStateStore's dispatcher
// queue, and will be processed once rm.stop() is called.
// Nothing exist in state store before stop is called.
RMState rmState = rm1.getRMContext().getStateStore().loadState();
Map<ApplicationId, ApplicationStateData> rmAppState =
rmState.getApplicationState();
Assert.assertTrue(rmAppState.size() == 0);
// stop rm
rm1.stop();
// Assert app info is still saved even if stop is called with pending saving
// request on dispatcher.
for (RMApp app : appList) {
rmState = rm1.getRMContext().getStateStore().loadState();
rmAppState =rmState.getApplicationState();
ApplicationStateData appState = rmAppState.get(app.getApplicationId());
Assert.assertNotNull(appState);
Assert.assertEquals(0, appState.getAttemptCount());
Assert.assertEquals(appState.getApplicationSubmissionContext()
.getApplicationId(), app.getApplicationSubmissionContext()
.getApplicationId());
}
rmState = rm1.getRMContext().getStateStore().loadState();
rmAppState =rmState.getApplicationState();
Assert.assertTrue(rmAppState.size() == NUM_APPS);
}
@Test (timeout = 60000)
public void testFinishedAppRemovalAfterRMRestart() throws Exception {
conf.setInt(YarnConfiguration.RM_MAX_COMPLETED_APPLICATIONS, 1);
// start RM
MockRM rm1 = createMockRM(conf);
rm1.start();
MockNM nm1 =
new MockNM("127.0.0.1:1234", 15120, rm1.getResourceTrackerService());
nm1.registerNode();
// create an app and finish the app.
RMApp app0 = rm1.submitApp(200);
MockAM am0 = launchAM(app0, rm1, nm1);
finishApplicationMaster(app0, rm1, nm1, am0);
MockRM rm2 = createMockRM(conf);
rm2.start();
nm1.setResourceTrackerService(rm2.getResourceTrackerService());
nm1 = rm2.registerNode("127.0.0.1:1234", 15120);
RMState rmState = rm2.getRMContext().getStateStore().loadState();
Map<ApplicationId, ApplicationStateData> rmAppState =
rmState.getApplicationState();
// app0 exits in both state store and rmContext
Assert.assertEquals(RMAppState.FINISHED,
rmAppState.get(app0.getApplicationId()).getState());
rm2.waitForState(app0.getApplicationId(), RMAppState.FINISHED);
// create one more app and finish the app.
RMApp app1 = rm2.submitApp(200);
MockAM am1 = launchAM(app1, rm2, nm1);
finishApplicationMaster(app1, rm2, nm1, am1);
// the first app0 get kicked out from both rmContext and state store
Assert.assertNull(rm2.getRMContext().getRMApps()
.get(app0.getApplicationId()));
rmState = rm2.getRMContext().getStateStore().loadState();
rmAppState = rmState.getApplicationState();
Assert.assertNull(rmAppState.get(app0.getApplicationId()));
}
// This is to test RM does not get hang on shutdown.
@Ignore //the test need to be reimplemented to work with the distributed RT
@Test (timeout = 10000)
public void testRMShutdown() throws Exception {
conf.set(YarnConfiguration.RM_STORE, MemoryRMStateStore.class.getName());
MemoryRMStateStore memStore = new MemoryRMStateStore() {
@Override
public synchronized void checkVersion()
throws Exception {
throw new Exception("Invalid version.");
}
};
// start RM
memStore.init(conf);
MockRM rm1 = null;
try {
rm1 = createMockRM(conf, memStore);
rm1.start();
Assert.fail();
} catch (Exception e) {
Assert.assertTrue(e.getMessage().contains("Invalid version."));
}
Assert.assertTrue(rm1.getServiceState() == STATE.STOPPED);
}
// This is to test Killing application should be able to wait until app
// reaches killed state and also check that attempt state is saved before app
// state is saved.
@Test (timeout = 60000)
public void testClientRetryOnKillingApplication() throws Exception {
conf.set(YarnConfiguration.RM_STORE, MemoryRMStateStore.class.getName());
MemoryRMStateStore memStore = new TestMemoryRMStateStore();
memStore.init(conf);
// start RM
MockRM rm1 = createMockRM(conf, memStore);
rm1.start();
memStore = new TestMemoryRMStateStore();
memStore.init(conf);
((RMContextImpl)rm1.getRMContext()).setStateStore(memStore);
memStore.setRMDispatcher(rm1.getRmDispatcher());
memStore.start();
MockNM nm1 =
new MockNM("127.0.0.1:1234", 15120, rm1.getResourceTrackerService());
nm1.registerNode();
RMApp app1 =
rm1.submitApp(200, "name", "user", null, false, "default", 1, null,
"myType");
MockAM am1 = launchAM(app1, rm1, nm1);
KillApplicationResponse response;
int count = 0;
while (true) {
response = rm1.killApp(app1.getApplicationId());
if (response.getIsKillCompleted()) {
break;
}
Thread.sleep(100);
count++;
}
// we expect at least 2 calls for killApp as the first killApp always return
// false.
Assert.assertTrue(count >= 1);
rm1.waitForState(am1.getApplicationAttemptId(), RMAppAttemptState.KILLED);
rm1.waitForState(app1.getApplicationId(), RMAppState.KILLED);
Assert.assertEquals(1, ((TestMemoryRMStateStore) memStore).updateAttempt);
Assert.assertEquals(2, ((TestMemoryRMStateStore) memStore).updateApp);
}
// Test Application that fails on submission is saved in state store.
@Test (timeout = 20000)
public void testAppFailedOnSubmissionSavedInStateStore() throws Exception {
conf.set(CommonConfigurationKeysPublic.HADOOP_SECURITY_AUTHENTICATION,
"kerberos");
UserGroupInformation.setConfiguration(conf);
MockRM rm1 = new TestSecurityMockRM(conf) {
@Override
protected RMAppManager createRMAppManager() {
return new TestRMAppManager(this.rmContext, this.scheduler,
this.masterService, this.applicationACLsManager, conf);
}
class TestRMAppManager extends RMAppManager {
public TestRMAppManager(RMContext context, YarnScheduler scheduler,
ApplicationMasterService masterService,
ApplicationACLsManager applicationACLsManager, Configuration conf) {
super(context, scheduler, masterService, applicationACLsManager, conf);
}
@Override
protected Credentials parseCredentials(
ApplicationSubmissionContext application) throws IOException {
throw new IOException("Parsing credential error.");
}
}
};
rm1.start();
RMApp app1 =
rm1.submitApp(200, "name", "user",
new HashMap<ApplicationAccessType, String>(), false, "default", -1,
null, "MAPREDUCE", false);
rm1.waitForState(app1.getApplicationId(), RMAppState.FAILED);
// Check app staet is saved in state store.
RMState rmState = rm1.getRMContext().getStateStore().loadState();
Assert.assertEquals(RMAppState.FAILED, rmState
.getApplicationState().get(app1.getApplicationId()).getState());
MockRM rm2 = new TestSecurityMockRM(conf);
rm2.start();
// Restarted RM has the failed app info too.
rm2.waitForState(app1.getApplicationId(), RMAppState.FAILED);
}
@Test (timeout = 20000)
public void testAppRecoveredInOrderOnRMRestart() throws Exception {
MemoryRMStateStore memStore = new MemoryRMStateStore();
memStore.init(conf);
for (int i = 10; i > 0; i--) {
ApplicationStateData appState = mock(ApplicationStateData.class);
ApplicationSubmissionContext context =
mock(ApplicationSubmissionContext.class);
when(appState.getApplicationSubmissionContext()).thenReturn(context);
when(context.getApplicationId()).thenReturn(
ApplicationId.newInstance(1234, i));
memStore.getState().getApplicationState().put(
appState.getApplicationSubmissionContext().getApplicationId(),
appState);
}
MockRM rm1 = new MockRM(conf, memStore) {
@Override
protected RMAppManager createRMAppManager() {
return new TestRMAppManager(this.rmContext, this.scheduler,
this.masterService, this.applicationACLsManager, conf);
}
class TestRMAppManager extends RMAppManager {
ApplicationId prevId = ApplicationId.newInstance(1234, 0);
public TestRMAppManager(RMContext context, YarnScheduler scheduler,
ApplicationMasterService masterService,
ApplicationACLsManager applicationACLsManager, Configuration conf) {
super(context, scheduler, masterService, applicationACLsManager, conf);
}
@Override
protected void recoverApplication(ApplicationStateData appState,
RMState rmState) throws Exception {
// check application is recovered in order.
Assert.assertTrue(rmState.getApplicationState().size() > 0);
Assert.assertTrue(appState.getApplicationSubmissionContext()
.getApplicationId().compareTo(prevId) > 0);
prevId =
appState.getApplicationSubmissionContext().getApplicationId();
}
}
};
try {
rm1.start();
} finally {
rm1.stop();
}
}
@SuppressWarnings("resource")
@Test (timeout = 60000)
public void testQueueMetricsOnRMRestart() throws Exception {
conf.setInt(YarnConfiguration.RM_AM_MAX_ATTEMPTS,
YarnConfiguration.DEFAULT_RM_AM_MAX_ATTEMPTS);
// PHASE 1: create state in an RM
// start RM
MockRM rm1 = createMockRM(conf);
rm1.start();
MockNM nm1 =
new MockNM("127.0.0.1:1234", 15120, rm1.getResourceTrackerService());
nm1.registerNode();
QueueMetrics qm1 = rm1.getResourceScheduler().getRootQueueMetrics();
resetQueueMetrics(qm1);
assertQueueMetrics(qm1, 0, 0, 0, 0);
// create app that gets launched and does allocate before RM restart
RMApp app1 = rm1.submitApp(200);
// Need to wait first for AppAttempt to be started (RMAppState.ACCEPTED)
// and then for it to reach RMAppAttemptState.SCHEDULED
// inorder to ensure appsPending metric is incremented
rm1.waitForState(app1.getApplicationId(), RMAppState.ACCEPTED);
RMAppAttempt attempt1 = app1.getCurrentAppAttempt();
ApplicationAttemptId attemptId1 = attempt1.getAppAttemptId();
rm1.waitForState(attemptId1, RMAppAttemptState.SCHEDULED);
assertQueueMetrics(qm1, 1, 1, 0, 0);
nm1.nodeHeartbeat(true);
rm1.waitForState(attemptId1, RMAppAttemptState.ALLOCATED);
MockAM am1 = rm1.sendAMLaunched(attempt1.getAppAttemptId());
am1.registerAppAttempt();
am1.allocate("127.0.0.1" , 1000, 1, new ArrayList<ContainerId>());
nm1.nodeHeartbeat(true);
List<Container> conts = am1.allocate(new ArrayList<ResourceRequest>(),
new ArrayList<ContainerId>()).getAllocatedContainers();
while (conts.size() == 0) {
nm1.nodeHeartbeat(true);
conts.addAll(am1.allocate(new ArrayList<ResourceRequest>(),
new ArrayList<ContainerId>()).getAllocatedContainers());
Thread.sleep(500);
}
assertQueueMetrics(qm1, 1, 0, 1, 0);
// PHASE 2: create new RM and start from old state
// create new RM to represent restart and recover state
MockRM rm2 = createMockRM(conf);
QueueMetrics qm2 = rm2.getResourceScheduler().getRootQueueMetrics();
resetQueueMetrics(qm2);
assertQueueMetrics(qm2, 0, 0, 0, 0);
rm2.start();
resetCarryOn();
nm1.setResourceTrackerService(rm2.getResourceTrackerService());
// recover app
RMApp loadedApp1 = rm2.getRMContext().getRMApps().get(app1.getApplicationId());
nm1.nodeHeartbeat(true);
nm1 = new MockNM("127.0.0.1:1234", 15120, rm2.getResourceTrackerService());
NMContainerStatus status =
TestRMRestart
.createNMContainerStatus(loadedApp1.getCurrentAppAttempt()
.getAppAttemptId(), 1, ContainerState.COMPLETE);
nm1.registerNode(Arrays.asList(status), null);
while (loadedApp1.getAppAttempts().size() != 2) {
Thread.sleep(200);
}
attempt1 = loadedApp1.getCurrentAppAttempt();
attemptId1 = attempt1.getAppAttemptId();
rm2.waitForState(attemptId1, RMAppAttemptState.SCHEDULED);
qm2 = rm2.getResourceScheduler().getRootQueueMetrics();
assertQueueMetrics(qm2, 1, 1, 0, 0);
nm1.nodeHeartbeat(true);
rm2.waitForState(attemptId1, RMAppAttemptState.ALLOCATED);
assertQueueMetrics(qm2, 1, 0, 1, 0);
am1 = rm2.sendAMLaunched(attempt1.getAppAttemptId());
am1.registerAppAttempt();
am1.allocate("127.0.0.1" , 1000, 3, new ArrayList<ContainerId>());
nm1.nodeHeartbeat(true);
conts = am1.allocate(new ArrayList<ResourceRequest>(),
new ArrayList<ContainerId>()).getAllocatedContainers();
while (conts.size() == 0) {
nm1.nodeHeartbeat(true);
conts.addAll(am1.allocate(new ArrayList<ResourceRequest>(),
new ArrayList<ContainerId>()).getAllocatedContainers());
Thread.sleep(500);
}
// finish the AMs
finishApplicationMaster(loadedApp1, rm2, nm1, am1);
assertQueueMetrics(qm2, 1, 0, 0, 1);
}
// The metrics has some carry-on value from the previous RM, because the
// test case is in-memory, for the same queue name (e.g. root), there's
// always a singleton QueueMetrics object.
private int appsSubmittedCarryOn = 0;
private int appsPendingCarryOn = 0;
private int appsRunningCarryOn = 0;
private int appsCompletedCarryOn = 0;
private void resetQueueMetrics(QueueMetrics qm) {
appsSubmittedCarryOn = qm.getAppsSubmitted();
appsPendingCarryOn = qm.getAppsPending();
appsRunningCarryOn = qm.getAppsRunning();
appsCompletedCarryOn = qm.getAppsCompleted();
}
//when a new rm become leader the carry on are reseted.
private void resetCarryOn() {
appsSubmittedCarryOn = 0;
appsPendingCarryOn = 0;
appsRunningCarryOn = 0;
appsCompletedCarryOn = 0;
}
private void assertQueueMetrics(QueueMetrics qm, int appsSubmitted,
int appsPending, int appsRunning, int appsCompleted) {
Assert.assertEquals(qm.getAppsSubmitted(),
appsSubmitted + appsSubmittedCarryOn);
Assert.assertEquals(qm.getAppsPending(),
appsPending + appsPendingCarryOn);
Assert.assertEquals(qm.getAppsRunning(),
appsRunning + appsRunningCarryOn);
Assert.assertEquals(qm.getAppsCompleted(),
appsCompleted + appsCompletedCarryOn);
}
@Test (timeout = 60000)
public void testDecomissionedNMsMetricsOnRMRestart() throws Exception {
YarnConfiguration conf = new YarnConfiguration();
conf.set(YarnConfiguration.RM_NODES_EXCLUDE_FILE_PATH,
hostFile.getAbsolutePath());
writeToHostsFile("");
MockRM rm1 = null, rm2 = null;
try {
rm1 = new MockRM(conf);
rm1.start();
MockNM nm1 = rm1.registerNode("localhost:1234", 8000);
MockNM nm2 = rm1.registerNode("host2:1234", 8000);
Assert
.assertEquals(0,
ClusterMetrics.getMetrics().getNumDecommisionedNMs());
String ip = NetUtils.normalizeHostName("localhost");
// Add 2 hosts to exclude list.
writeToHostsFile("host2", ip);
// refresh nodes
rm1.getNodesListManager().refreshNodes(conf);
NodeHeartbeatResponse nodeHeartbeat = nm1.nodeHeartbeat(true);
Assert
.assertTrue(
NodeAction.SHUTDOWN.equals(nodeHeartbeat.getNodeAction()));
nodeHeartbeat = nm2.nodeHeartbeat(true);
Assert.assertTrue("The decommisioned metrics are not updated",
NodeAction.SHUTDOWN.equals(nodeHeartbeat.getNodeAction()));
rm1.drainEvents();
Assert
.assertEquals(2,
ClusterMetrics.getMetrics().getNumDecommisionedNMs());
rm1.stop();
rm1 = null;
Assert
.assertEquals(0,
ClusterMetrics.getMetrics().getNumDecommisionedNMs());
// restart RM.
rm2 = new MockRM(conf);
rm2.start();
rm2.drainEvents();
Assert
.assertEquals(2,
ClusterMetrics.getMetrics().getNumDecommisionedNMs());
} finally {
if (rm1 != null) {
rm1.stop();
}
if (rm2 != null) {
rm2.stop();
}
}
}
// Test Delegation token is renewed synchronously so that recover events
// can be processed before any other external incoming events, specifically
// the ContainerFinished event on NM re-registraton.
@Test (timeout = 20000)
public void testSynchronouslyRenewDTOnRecovery() throws Exception {
conf.setInt(YarnConfiguration.RM_AM_MAX_ATTEMPTS, 2);
conf.set(CommonConfigurationKeysPublic.HADOOP_SECURITY_AUTHENTICATION,
"kerberos");
// start RM
MockRM rm1 = createMockRM(conf);
rm1.start();
final MockNM nm1 =
new MockNM("127.0.0.1:1234", 15120, rm1.getResourceTrackerService());
nm1.registerNode();
RMApp app0 = rm1.submitApp(200);
final MockAM am0 = MockRM.launchAndRegisterAM(app0, rm1, nm1);
MockRM rm2 = new MockRM(conf) {
@Override
protected ResourceTrackerService createResourceTrackerService() {
return new ResourceTrackerService(this.rmContext,
this.nodesListManager, this.nmLivelinessMonitor,
this.rmContext.getContainerTokenSecretManager(),
this.rmContext.getNMTokenSecretManager()) {
@Override
protected void serviceStart() throws Exception {
// send the container_finished event as soon as the
// ResourceTrackerService is started.
super.serviceStart();
nm1.setResourceTrackerService(getResourceTrackerService());
NMContainerStatus status =
TestRMRestart.createNMContainerStatus(
am0.getApplicationAttemptId(), 1, ContainerState.COMPLETE);
nm1.registerNode(Arrays.asList(status), null);
}
};
}
};
try {
// Re-start RM
rm2.start();
// wait for the 2nd attempt to be started.
RMApp loadedApp0 =
rm2.getRMContext().getRMApps().get(app0.getApplicationId());
int timeoutSecs = 0;
while (loadedApp0.getAppAttempts().size() != 2 && timeoutSecs++ < 40) {
Thread.sleep(200);
}
MockAM am1 = MockRM.launchAndRegisterAM(loadedApp0, rm2, nm1);
MockRM.finishAMAndVerifyAppState(loadedApp0, rm2, nm1, am1);
} finally {
rm2.stop();
}
}
private void writeToHostsFile(String... hosts) throws IOException {
if (!hostFile.exists()) {
TEMP_DIR.mkdirs();
hostFile.createNewFile();
}
FileOutputStream fStream = null;
try {
fStream = new FileOutputStream(hostFile);
for (int i = 0; i < hosts.length; i++) {
fStream.write(hosts[i].getBytes());
fStream.write(System.getProperty("line.separator").getBytes());
}
} finally {
if (fStream != null) {
IOUtils.closeStream(fStream);
fStream = null;
}
}
}
public static NMContainerStatus createNMContainerStatus(
ApplicationAttemptId appAttemptId, int id, ContainerState containerState) {
ContainerId containerId = ContainerId.newInstance(appAttemptId, id);
NMContainerStatus containerReport =
NMContainerStatus.newInstance(containerId, containerState,
Resource.newInstance(1024, 1), "recover container", 0,
Priority.newInstance(0), 0);
return containerReport;
}
public class TestMemoryRMStateStore extends MemoryRMStateStore {
int count = 0;
public int updateApp = 0;
public int updateAttempt = 0;
@Override
public void updateApplicationStateInternal(ApplicationId appId,
ApplicationStateData appStateData) throws Exception {
updateApp = ++count;
super.updateApplicationStateInternal(appId, appStateData);
}
@Override
public synchronized void
updateApplicationAttemptStateInternal(
ApplicationAttemptId attemptId,
ApplicationAttemptStateData attemptStateData)
throws Exception {
updateAttempt = ++count;
super.updateApplicationAttemptStateInternal(attemptId,
attemptStateData);
}
}
public static class TestSecurityMockRM extends MockRM {
public TestSecurityMockRM(Configuration conf, RMStateStore store) {
super(conf, store);
}
public TestSecurityMockRM(Configuration conf) {
super(conf);
}
@Override
public void init(Configuration conf) {
// reset localServiceAddress.
RMDelegationTokenIdentifier.Renewer.setSecretManager(null, null);
super.init(conf);
}
@Override
protected ClientRMService createClientRMService() {
return new ClientRMService(getRMContext(), getResourceScheduler(),
rmAppManager, applicationACLsManager, null,
getRMContext().getRMDelegationTokenSecretManager()){
@Override
protected void serviceStart() throws Exception {
// do nothing
}
@Override
protected void serviceStop() throws Exception {
//do nothing
}
};
}
@Override
protected void doSecureLogin() throws IOException {
// Do nothing.
}
}
// Test does following verification
// 1. Start RM1 with store patch /tmp
// 2. Add/remove/replace labels to cluster and node lable and verify
// 3. Start RM2 with store patch /tmp only
// 4. Get cluster and node lobel, it should be present by recovering it
@Test(timeout = 20000)
public void testRMRestartRecoveringNodeLabelManager() throws Exception {
// Initial FS node label store root dir to a random tmp dir
File nodeLabelFsStoreDir =
new File("target", this.getClass().getSimpleName()
+ "-testRMRestartRecoveringNodeLabelManager");
if (nodeLabelFsStoreDir.exists()) {
FileUtils.deleteDirectory(nodeLabelFsStoreDir);
}
nodeLabelFsStoreDir.deleteOnExit();
String nodeLabelFsStoreDirURI = nodeLabelFsStoreDir.toURI().toString();
conf.set(YarnConfiguration.FS_NODE_LABELS_STORE_ROOT_DIR,
nodeLabelFsStoreDirURI);
MemoryRMStateStore memStore = new MemoryRMStateStore();
memStore.init(conf);
conf.setBoolean(YarnConfiguration.NODE_LABELS_ENABLED, true);
MockRM rm1 = new MockRM(conf, memStore) {
@Override
protected RMNodeLabelsManager createNodeLabelManager() {
RMNodeLabelsManager mgr = new RMNodeLabelsManager();
mgr.init(getConfig());
return mgr;
}
};
rm1.init(conf);
rm1.start();
RMNodeLabelsManager nodeLabelManager =
rm1.getRMContext().getNodeLabelManager();
Set<String> clusterNodeLabels = new HashSet<String>();
clusterNodeLabels.add("x");
clusterNodeLabels.add("y");
clusterNodeLabels.add("z");
// Add node label x,y,z
nodeLabelManager.addToCluserNodeLabels(clusterNodeLabels);
// Add node Label to Node h1->x
NodeId n1 = NodeId.newInstance("h1", 0);
nodeLabelManager.addLabelsToNode(ImmutableMap.of(n1, toSet("x")));
clusterNodeLabels.remove("z");
// Remove cluster label z
nodeLabelManager.removeFromClusterNodeLabels(toSet("z"));
// Replace nodelabel h1->x,y
nodeLabelManager.replaceLabelsOnNode(ImmutableMap.of(n1, toSet("y")));
// Wait for updating store.It is expected NodeStore update should happen
// very fast since it has separate dispatcher. So waiting for max 5 seconds,
// which is sufficient time to update NodeStore.
int count = 10;
while (count-- > 0) {
if (nodeLabelManager.getNodeLabels().size() > 0) {
break;
}
Thread.sleep(500);
}
Assert.assertEquals(clusterNodeLabels.size(), nodeLabelManager
.getClusterNodeLabels().size());
Map<NodeId, Set<String>> nodeLabels = nodeLabelManager.getNodeLabels();
Assert.assertEquals(1, nodeLabelManager.getNodeLabels().size());
Assert.assertTrue(nodeLabels.get(n1).equals(toSet("y")));
MockRM rm2 = new MockRM(conf, memStore) {
@Override
protected RMNodeLabelsManager createNodeLabelManager() {
RMNodeLabelsManager mgr = new RMNodeLabelsManager();
mgr.init(getConfig());
return mgr;
}
};
rm2.init(conf);
rm2.start();
nodeLabelManager = rm2.getRMContext().getNodeLabelManager();
Assert.assertEquals(clusterNodeLabels.size(), nodeLabelManager
.getClusterNodeLabels().size());
nodeLabels = nodeLabelManager.getNodeLabels();
Assert.assertEquals(1, nodeLabelManager.getNodeLabels().size());
Assert.assertTrue(nodeLabels.get(n1).equals(toSet("y")));
rm1.stop();
rm2.stop();
}
private <E> Set<E> toSet(E... elements) {
Set<E> set = Sets.newHashSet(elements);
return set;
}
}