Examples with RMState org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore.RMState used on opensource projects

Example 6 with RMState

use of org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore.RMState in project hadoop by apache.

the class TestApplicationPriority method testRMRestartWithChangeInPriority.

@Test(timeout = 180000)
public void testRMRestartWithChangeInPriority() throws Exception {
    conf.setBoolean(YarnConfiguration.RECOVERY_ENABLED, true);
    conf.setBoolean(YarnConfiguration.RM_WORK_PRESERVING_RECOVERY_ENABLED, false);
    conf.set(YarnConfiguration.RM_STORE, MemoryRMStateStore.class.getName());
    conf.setInt(YarnConfiguration.RM_AM_MAX_ATTEMPTS, YarnConfiguration.DEFAULT_RM_AM_MAX_ATTEMPTS);
    conf.setInt(YarnConfiguration.MAX_CLUSTER_LEVEL_APPLICATION_PRIORITY, 10);
    MemoryRMStateStore memStore = new MemoryRMStateStore();
    memStore.init(conf);
    RMState rmState = memStore.getState();
    Map<ApplicationId, ApplicationStateData> rmAppState = rmState.getApplicationState();
    // PHASE 1: create state in an RM
    // start RM
    MockRM rm1 = new MockRM(conf, memStore);
    rm1.start();
    MockNM nm1 = new MockNM("127.0.0.1:1234", 15120, rm1.getResourceTrackerService());
    nm1.registerNode();
    Priority appPriority1 = Priority.newInstance(5);
    RMApp app1 = rm1.submitApp(1 * GB, appPriority1);
    // kick the scheduler, 1 GB given to AM1, remaining 15GB on nm1
    MockAM am1 = MockRM.launchAM(app1, rm1, nm1);
    am1.registerAppAttempt();
    // get scheduler
    CapacityScheduler cs = (CapacityScheduler) rm1.getResourceScheduler();
    // Change the priority of App1 to 8
    Priority appPriority2 = Priority.newInstance(8);
    UserGroupInformation ugi = UserGroupInformation.createRemoteUser(app1.getUser());
    cs.updateApplicationPriority(appPriority2, app1.getApplicationId(), null, ugi);
    // let things settle down
    Thread.sleep(1000);
    // create new RM to represent restart and recover state
    MockRM rm2 = new MockRM(conf, memStore);
    // start new RM
    rm2.start();
    // change NM to point to new RM
    nm1.setResourceTrackerService(rm2.getResourceTrackerService());
    // Verify RM Apps after this restart
    Assert.assertEquals(1, rm2.getRMContext().getRMApps().size());
    // get scheduler app
    RMApp loadedApp = rm2.getRMContext().getRMApps().get(app1.getApplicationId());
    // Verify whether priority 15 is reset to 10
    Assert.assertEquals(appPriority2, loadedApp.getApplicationPriority());
    rm2.stop();
    rm1.stop();
}

Example 7 with RMState

use of org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore.RMState in project hadoop by apache.

the class TestRMRestart method testRMRestartAppRunningAMFailed.

@Test(timeout = 60000)
public void testRMRestartAppRunningAMFailed() throws Exception {
    conf.setInt(YarnConfiguration.RM_AM_MAX_ATTEMPTS, YarnConfiguration.DEFAULT_RM_AM_MAX_ATTEMPTS);
    MemoryRMStateStore memStore = new MemoryRMStateStore();
    memStore.init(conf);
    RMState rmState = memStore.getState();
    Map<ApplicationId, ApplicationStateData> rmAppState = rmState.getApplicationState();
    // start RM
    MockRM rm1 = createMockRM(conf, memStore);
    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);
    rm1.waitForState(am0.getApplicationAttemptId(), RMAppAttemptState.FAILED);
    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, memStore);
    rm2.start();
    // assert the previous AM state is loaded back on RM recovery.
    rm2.waitForState(am0.getApplicationAttemptId(), RMAppAttemptState.FAILED);
}

Example 8 with RMState

use of org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore.RMState in project hadoop by apache.

the class TestRMRestart method testRMRestart.

@SuppressWarnings("rawtypes")
@Test(timeout = 180000)
public void testRMRestart() throws Exception {
    conf.setInt(YarnConfiguration.RM_AM_MAX_ATTEMPTS, YarnConfiguration.DEFAULT_RM_AM_MAX_ATTEMPTS);
    MemoryRMStateStore memStore = new MemoryRMStateStore();
    memStore.init(conf);
    RMState rmState = memStore.getState();
    Map<ApplicationId, ApplicationStateData> rmAppState = rmState.getApplicationState();
    // PHASE 1: create state in an RM
    // start RM
    MockRM rm1 = createMockRM(conf, memStore);
    // 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 will not heartbeat with RM1
    nm2.registerNode();
    // 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
    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
    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);
    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
    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();
    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
    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, memStore);
    // 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);
    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);
    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.
    Assert.assertEquals(4, rmAppState.size());
}

Example 9 with RMState

use of org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore.RMState in project hadoop by apache.

the class TestRMRestart method finishApplicationMaster.

private void finishApplicationMaster(RMApp rmApp, MockRM rm, MockNM nm, MockAM am, FinishApplicationMasterRequest req) throws Exception {
    RMState rmState = ((MemoryRMStateStore) rm.getRMContext().getStateStore()).getState();
    Map<ApplicationId, ApplicationStateData> rmAppState = rmState.getApplicationState();
    am.unregisterAppAttempt(req, true);
    rm.waitForState(am.getApplicationAttemptId(), RMAppAttemptState.FINISHING);
    nm.nodeHeartbeat(am.getApplicationAttemptId(), 1, ContainerState.COMPLETE);
    rm.waitForState(am.getApplicationAttemptId(), RMAppAttemptState.FINISHED);
    rm.waitForState(rmApp.getApplicationId(), RMAppState.FINISHED);
    // check that app/attempt is saved with the final state
    ApplicationStateData appState = rmAppState.get(rmApp.getApplicationId());
    Assert.assertEquals(RMAppState.FINISHED, appState.getState());
    Assert.assertEquals(RMAppAttemptState.FINISHED, appState.getAttempt(am.getApplicationAttemptId()).getState());
}

Example 10 with RMState

use of org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore.RMState in project hadoop by apache.

the class TestRMRestart method testRMRestartWaitForPreviousSucceededAttempt.

// 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);
    MemoryRMStateStore memStore = new MemoryRMStateStore() {

        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);
            }
        }
    };
    memStore.init(conf);
    RMState rmState = memStore.getState();
    Map<ApplicationId, ApplicationStateData> rmAppState = rmState.getApplicationState();
    // start RM
    MockRM rm1 = createMockRM(conf, memStore);
    rm1.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);
    rm1.waitForState(am0.getApplicationAttemptId(), 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.
    Assert.assertNull(rmAppState.get(app0.getApplicationId()).getState());
    // start RM
    MockRM rm2 = createMockRM(conf, memStore);
    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.
    Assert.assertEquals(RMAppState.FINISHED, rmAppState.get(app0.getApplicationId()).getState());
}