Examples of org.apache.tez.dag.app.rm.TestTaskSchedulerHelpers.CapturingEventHandler

Package org.apache.tez.dag.app.rm.TestTaskSchedulerHelpers

Examples of org.apache.tez.dag.app.rm.TestTaskSchedulerHelpers.CapturingEventHandler

org.apache.tez.dag.app.rm.TestTaskSchedulerHelpers.CapturingEventHandler

    tezConf.setLong(TezConfiguration.TEZ_AM_CONTAINER_REUSE_LOCALITY_DELAY_ALLOCATION_MILLIS, 0);
    tezConf.setLong(TezConfiguration.TEZ_AM_CONTAINER_SESSION_DELAY_ALLOCATION_MILLIS, 0);
    RackResolver.init(tezConf);
    TaskSchedulerAppCallback mockApp = mock(TaskSchedulerAppCallback.class);


    CapturingEventHandler eventHandler = new CapturingEventHandler();
    TezDAGID dagID = TezDAGID.getInstance("0", 0, 0);


    AMRMClient<CookieContainerRequest> rmClientCore = new AMRMClientForTest();
    TezAMRMClientAsync<CookieContainerRequest> rmClient = spy(new AMRMClientAsyncForTest(rmClientCore, 100));
    String appUrl = "url";
    String appMsg = "success";
    AppFinalStatus finalStatus =
        new AppFinalStatus(FinalApplicationStatus.SUCCEEDED, appMsg, appUrl);


    doReturn(finalStatus).when(mockApp).getFinalAppStatus();


    AppContext appContext = mock(AppContext.class);
    AMContainerMap amContainerMap = new AMContainerMap(mock(ContainerHeartbeatHandler.class),
        mock(TaskAttemptListener.class), new ContainerContextMatcher(), appContext);
    AMNodeMap amNodeMap = new AMNodeMap(eventHandler, appContext);
    doReturn(amContainerMap).when(appContext).getAllContainers();
    doReturn(amNodeMap).when(appContext).getAllNodes();
    doReturn(DAGAppMasterState.RUNNING).when(appContext).getAMState();
    doReturn(dagID).when(appContext).getCurrentDAGID();
    doReturn(mock(ClusterInfo.class)).when(appContext).getClusterInfo();


    TaskSchedulerEventHandler taskSchedulerEventHandlerReal = new TaskSchedulerEventHandlerForTest(appContext, eventHandler, rmClient, new AlwaysMatchesContainerMatcher());
    TaskSchedulerEventHandler taskSchedulerEventHandler = spy(taskSchedulerEventHandlerReal);
    taskSchedulerEventHandler.init(tezConf);
    taskSchedulerEventHandler.start();


    TaskSchedulerWithDrainableAppCallback taskScheduler = (TaskSchedulerWithDrainableAppCallback) ((TaskSchedulerEventHandlerForTest) taskSchedulerEventHandler)
        .getSpyTaskScheduler();
    TaskSchedulerAppCallbackDrainable drainableAppCallback = taskScheduler.getDrainableAppCallback();
    AtomicBoolean drainNotifier = new AtomicBoolean(false);
    taskScheduler.delayedContainerManager.drainedDelayedContainers = drainNotifier;


    Resource resource1 = Resource.newInstance(1024, 1);
    String[] host1 = {"host1"};
    String[] host2 = {"host2"};


    String []racks = {"/default-rack"};
    Priority priority1 = Priority.newInstance(1);


    TezVertexID vertexID1 = TezVertexID.getInstance(dagID, 1);


    //Vertex 1, Task 1, Attempt 1, host1
    TezTaskAttemptID taID11 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID1, 1), 1);
    TaskAttempt ta11 = mock(TaskAttempt.class);
    AMSchedulerEventTALaunchRequest lrEvent1 = createLaunchRequestEvent(taID11, ta11, resource1, host1, racks, priority1);


    //Vertex 1, Task 2, Attempt 1, host1
    TezTaskAttemptID taID12 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID1, 2), 1);
    TaskAttempt ta12 = mock(TaskAttempt.class);
    AMSchedulerEventTALaunchRequest lrEvent2 = createLaunchRequestEvent(taID12, ta12, resource1, host1, racks, priority1);


    //Vertex 1, Task 3, Attempt 1, host2
    TezTaskAttemptID taID13 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID1, 3), 1);
    TaskAttempt ta13 = mock(TaskAttempt.class);
    AMSchedulerEventTALaunchRequest lrEvent3 = createLaunchRequestEvent(taID13, ta13, resource1, host2, racks, priority1);


    //Vertex 1, Task 4, Attempt 1, host2
    TezTaskAttemptID taID14 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID1, 4), 1);
    TaskAttempt ta14 = mock(TaskAttempt.class);
    AMSchedulerEventTALaunchRequest lrEvent4 = createLaunchRequestEvent(taID14, ta14, resource1, host2, racks, priority1);


    taskSchedulerEventHandler.handleEvent(lrEvent1);
    taskSchedulerEventHandler.handleEvent(lrEvent2);
    taskSchedulerEventHandler.handleEvent(lrEvent3);
    taskSchedulerEventHandler.handleEvent(lrEvent4);


    Container container1 = createContainer(1, "host1", resource1, priority1);


    // One container allocated.
    drainNotifier.set(false);
    taskScheduler.onContainersAllocated(Collections.singletonList(container1));
    TestTaskSchedulerHelpers.waitForDelayedDrainNotify(drainNotifier);
    drainableAppCallback.drain();
    verify(taskSchedulerEventHandler).taskAllocated(eq(ta11), any(Object.class), eq(container1));


    // Task assigned to container completed successfully. Container should be re-used.
    taskSchedulerEventHandler.handleEvent(new AMSchedulerEventTAEnded(ta11, container1.getId(), TaskAttemptState.SUCCEEDED));
    drainableAppCallback.drain();
    verify(taskScheduler).deallocateTask(eq(ta11), eq(true));
    verify(taskSchedulerEventHandler).taskAllocated(eq(ta12), any(Object.class), eq(container1));
    verify(rmClient, times(0)).releaseAssignedContainer(eq(container1.getId()));
    eventHandler.verifyNoInvocations(AMContainerEventStopRequest.class);
    eventHandler.reset();


    // Task assigned to container completed successfully.
    // Verify reuse across hosts.
    taskSchedulerEventHandler.handleEvent(new AMSchedulerEventTAEnded(ta12, container1.getId(), TaskAttemptState.SUCCEEDED));
    drainableAppCallback.drain();
    verify(taskScheduler).deallocateTask(eq(ta12), eq(true));
    verify(taskSchedulerEventHandler).taskAllocated(eq(ta13), any(Object.class), eq(container1));
    verify(rmClient, times(0)).releaseAssignedContainer(eq(container1.getId()));
    eventHandler.verifyNoInvocations(AMContainerEventStopRequest.class);
    eventHandler.reset();


    // Verify no re-use if a previous task fails.
    taskSchedulerEventHandler.handleEvent(new AMSchedulerEventTAEnded(ta13, container1.getId(), TaskAttemptState.FAILED));
    drainableAppCallback.drain();
    verify(taskSchedulerEventHandler, times(0)).taskAllocated(eq(ta14), any(Object.class), eq(container1));
    verify(taskScheduler).deallocateTask(eq(ta13), eq(false));
    verify(rmClient).releaseAssignedContainer(eq(container1.getId()));
    eventHandler.verifyInvocation(AMContainerEventStopRequest.class);
    eventHandler.reset();


    Container container2 = createContainer(2, "host2", resource1, priority1);


    // Second container allocated. Should be allocated to the last task.
    drainNotifier.set(false);
    taskScheduler.onContainersAllocated(Collections.singletonList(container2));
    TestTaskSchedulerHelpers.waitForDelayedDrainNotify(drainNotifier);
    drainableAppCallback.drain();
    verify(taskSchedulerEventHandler).taskAllocated(eq(ta14), any(Object.class), eq(container2));


    // Task assigned to container completed successfully. No pending requests. Container should be released.
    taskSchedulerEventHandler.handleEvent(new AMSchedulerEventTAEnded(ta14, container2.getId(), TaskAttemptState.SUCCEEDED));
    drainableAppCallback.drain();
    verify(taskScheduler).deallocateTask(eq(ta14), eq(true));
    verify(rmClient).releaseAssignedContainer(eq(container2.getId()));
    eventHandler.verifyInvocation(AMContainerEventStopRequest.class);
    eventHandler.reset();




    taskScheduler.close();
    taskSchedulerEventHandler.close();
  }

View Full Code Here

    tezConf.setLong(TezConfiguration.TEZ_AM_CONTAINER_REUSE_LOCALITY_DELAY_ALLOCATION_MILLIS, 100l);
    tezConf.setLong(TezConfiguration.TEZ_AM_CONTAINER_SESSION_DELAY_ALLOCATION_MILLIS, 10000l);
    RackResolver.init(tezConf);
    TaskSchedulerAppCallback mockApp = mock(TaskSchedulerAppCallback.class);


    CapturingEventHandler eventHandler = new CapturingEventHandler();
    TezDAGID dagID = TezDAGID.getInstance("0", 0, 0);


    AMRMClient<CookieContainerRequest> rmClientCore = new AMRMClientForTest();
    TezAMRMClientAsync<CookieContainerRequest> rmClient =
        spy(new AMRMClientAsyncForTest(rmClientCore, 100));
    String appUrl = "url";
    String appMsg = "success";
    AppFinalStatus finalStatus =
        new AppFinalStatus(FinalApplicationStatus.SUCCEEDED, appMsg, appUrl);


    doReturn(finalStatus).when(mockApp).getFinalAppStatus();


    AppContext appContext = mock(AppContext.class);
    AMContainerMap amContainerMap = new AMContainerMap(
        mock(ContainerHeartbeatHandler.class),
        mock(TaskAttemptListener.class),
        new ContainerContextMatcher(), appContext);
    AMNodeMap amNodeMap = new AMNodeMap(eventHandler, appContext);
    doReturn(amContainerMap).when(appContext).getAllContainers();
    doReturn(amNodeMap).when(appContext).getAllNodes();
    doReturn(DAGAppMasterState.RUNNING).when(appContext).getAMState();
    doReturn(dagID).when(appContext).getCurrentDAGID();
    doReturn(mock(ClusterInfo.class)).when(appContext).getClusterInfo();


    TaskSchedulerEventHandler taskSchedulerEventHandlerReal =
        new TaskSchedulerEventHandlerForTest(
          appContext, eventHandler, rmClient,
          new AlwaysMatchesContainerMatcher());
    TaskSchedulerEventHandler taskSchedulerEventHandler =
        spy(taskSchedulerEventHandlerReal);
    taskSchedulerEventHandler.init(tezConf);
    taskSchedulerEventHandler.start();


    TaskSchedulerWithDrainableAppCallback taskScheduler =
      (TaskSchedulerWithDrainableAppCallback)
        ((TaskSchedulerEventHandlerForTest) taskSchedulerEventHandler)
        .getSpyTaskScheduler();
    TaskSchedulerAppCallbackDrainable drainableAppCallback =
      taskScheduler.getDrainableAppCallback();
    AtomicBoolean drainNotifier = new AtomicBoolean(false);
    taskScheduler.delayedContainerManager.drainedDelayedContainers = drainNotifier;


    Resource resource1 = Resource.newInstance(1024, 1);
    String [] emptyHosts = new String[0];
    String [] racks = { "default-rack" };


    Priority priority = Priority.newInstance(3);


    TezVertexID vertexID = TezVertexID.getInstance(dagID, 1);


    //Vertex 1, Task 1, Attempt 1, no locality information.
    TezTaskAttemptID taID11 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID, 1), 1);
    TaskAttempt ta11 = mock(TaskAttempt.class);
    doReturn(vertexID).when(ta11).getVertexID();
    AMSchedulerEventTALaunchRequest lrEvent11 = createLaunchRequestEvent(
      taID11, ta11, resource1, emptyHosts, racks, priority);


    //Vertex1, Task2, Attempt 1,  no locality information.
    TezTaskAttemptID taID12 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID, 2), 1);
    TaskAttempt ta12 = mock(TaskAttempt.class);
    doReturn(vertexID).when(ta12).getVertexID();
    AMSchedulerEventTALaunchRequest lrEvent12 = createLaunchRequestEvent(
      taID12, ta12, resource1, emptyHosts, racks, priority);


    // Send launch request for task 1 only, deterministic assignment to this task.
    taskSchedulerEventHandler.handleEvent(lrEvent11);


    Container container1 = createContainer(1, "randomHost", resource1, priority);


    // One container allocated.
    drainNotifier.set(false);
    taskScheduler.onContainersAllocated(Collections.singletonList(container1));
    TestTaskSchedulerHelpers.waitForDelayedDrainNotify(drainNotifier);
    drainableAppCallback.drain();
    verify(taskSchedulerEventHandler).taskAllocated(
      eq(ta11), any(Object.class), eq(container1));


    // Send launch request for task2 (vertex2)
    taskSchedulerEventHandler.handleEvent(lrEvent12);


    // Task assigned to container completed successfully.
    // Container should not be immediately assigned to task 2
    // until delay expires.
    taskSchedulerEventHandler.handleEvent(
      new AMSchedulerEventTAEnded(ta11, container1.getId(),
        TaskAttemptState.SUCCEEDED));
    drainableAppCallback.drain();
    verify(taskScheduler).deallocateTask(eq(ta11), eq(true));
    verify(taskSchedulerEventHandler, times(0)).taskAllocated(
      eq(ta12), any(Object.class), eq(container1));
    verify(rmClient, times(0)).releaseAssignedContainer(eq(container1.getId()));
    eventHandler.verifyNoInvocations(AMContainerEventStopRequest.class);
    eventHandler.reset();


    LOG.info("Sleeping to ensure that the scheduling loop runs");
    Thread.sleep(6000l);
    verify(taskSchedulerEventHandler).taskAllocated(
      eq(ta12), any(Object.class), eq(container1));


    // TA12 completed.
    taskSchedulerEventHandler.handleEvent(
      new AMSchedulerEventTAEnded(ta12, container1.getId(),
        TaskAttemptState.SUCCEEDED));
    drainableAppCallback.drain();
    verify(rmClient).releaseAssignedContainer(eq(container1.getId()));
    eventHandler.verifyInvocation(AMContainerEventStopRequest.class);


    taskScheduler.close();
    taskSchedulerEventHandler.close();
  }

View Full Code Here

    tezConf.setLong(
      TezConfiguration.TEZ_AM_CONTAINER_SESSION_DELAY_ALLOCATION_MILLIS, 2000l);
    RackResolver.init(tezConf);
    TaskSchedulerAppCallback mockApp = mock(TaskSchedulerAppCallback.class);


    CapturingEventHandler eventHandler = new CapturingEventHandler();
    TezDAGID dagID = TezDAGID.getInstance("0", 0, 0);


    AMRMClient<CookieContainerRequest> rmClientCore = new AMRMClientForTest();
    TezAMRMClientAsync<CookieContainerRequest> rmClient =
      spy(new AMRMClientAsyncForTest(rmClientCore, 100));
    String appUrl = "url";
    String appMsg = "success";
    AppFinalStatus finalStatus =
        new AppFinalStatus(FinalApplicationStatus.SUCCEEDED, appMsg, appUrl);


    doReturn(finalStatus).when(mockApp).getFinalAppStatus();


    AppContext appContext = mock(AppContext.class);
    AMContainerMap amContainerMap = new AMContainerMap(
      mock(ContainerHeartbeatHandler.class),
      mock(TaskAttemptListener.class),
      new ContainerContextMatcher(), appContext);
    AMNodeMap amNodeMap = new AMNodeMap(eventHandler, appContext);
    doReturn(amContainerMap).when(appContext).getAllContainers();
    doReturn(amNodeMap).when(appContext).getAllNodes();
    doReturn(DAGAppMasterState.RUNNING).when(appContext).getAMState();
    doReturn(true).when(appContext).isSession();
    doReturn(dagID).when(appContext).getCurrentDAGID();
    doReturn(mock(ClusterInfo.class)).when(appContext).getClusterInfo();


    TaskSchedulerEventHandler taskSchedulerEventHandlerReal =
      new TaskSchedulerEventHandlerForTest(appContext, eventHandler, rmClient,
        new AlwaysMatchesContainerMatcher());
    TaskSchedulerEventHandler taskSchedulerEventHandler =
      spy(taskSchedulerEventHandlerReal);
    taskSchedulerEventHandler.init(tezConf);
    taskSchedulerEventHandler.start();


    TaskSchedulerWithDrainableAppCallback taskScheduler =
      (TaskSchedulerWithDrainableAppCallback)
        ((TaskSchedulerEventHandlerForTest) taskSchedulerEventHandler)
          .getSpyTaskScheduler();
    TaskSchedulerAppCallbackDrainable drainableAppCallback = taskScheduler.getDrainableAppCallback();


    AtomicBoolean drainNotifier = new AtomicBoolean(false);
    taskScheduler.delayedContainerManager.drainedDelayedContainers = drainNotifier;


    Resource resource1 = Resource.newInstance(1024, 1);
    String[] host1 = {"host1"};


    String []racks = {"/default-rack"};
    Priority priority1 = Priority.newInstance(3);
    Priority priority2 = Priority.newInstance(4);


    TezVertexID vertexID1 = TezVertexID.getInstance(dagID, 1);
    TezVertexID vertexID2 = TezVertexID.getInstance(dagID, 2);


    //Vertex 1, Task 1, Attempt 1, host1
    TezTaskAttemptID taID11 = TezTaskAttemptID.getInstance(
      TezTaskID.getInstance(vertexID1, 1), 1);
    TaskAttempt ta11 = mock(TaskAttempt.class);
    doReturn(vertexID1).when(ta11).getVertexID();
    AMSchedulerEventTALaunchRequest lrEvent11 = createLaunchRequestEvent(
      taID11, ta11, resource1, host1, racks, priority1);


    //Vertex2, Task1, Attempt 1, host1
    TezTaskAttemptID taID21 = TezTaskAttemptID.getInstance(
      TezTaskID.getInstance(vertexID2, 1), 1);
    TaskAttempt ta21 = mock(TaskAttempt.class);
    doReturn(vertexID2).when(ta21).getVertexID();
    AMSchedulerEventTALaunchRequest lrEvent21 = createLaunchRequestEvent(
      taID21, ta21, resource1, host1, racks, priority2);


    // Send launch request for task 1 onle, deterministic assignment to this task.
    taskSchedulerEventHandler.handleEvent(lrEvent11);


    Container container1 = createContainer(1, host1[0], resource1, priority1);


    // One container allocated.
    drainNotifier.set(false);
    taskScheduler.onContainersAllocated(Collections.singletonList(container1));
    TestTaskSchedulerHelpers.waitForDelayedDrainNotify(drainNotifier);
    drainableAppCallback.drain();
    verify(taskSchedulerEventHandler).taskAllocated(
      eq(ta11), any(Object.class), eq(container1));


    // Send launch request for task2 (vertex2)
    taskSchedulerEventHandler.handleEvent(lrEvent21);


    // Task assigned to container completed successfully.
    // Container should  be assigned to task21.
    taskSchedulerEventHandler.handleEvent(
      new AMSchedulerEventTAEnded(ta11, container1.getId(),
        TaskAttemptState.SUCCEEDED));
    drainableAppCallback.drain();
    verify(taskScheduler).deallocateTask(eq(ta11), eq(true));
    verify(taskSchedulerEventHandler).taskAllocated(
      eq(ta21), any(Object.class), eq(container1));
    verify(rmClient, times(0)).releaseAssignedContainer(eq(container1.getId()));


    // Task 2 completes.
    taskSchedulerEventHandler.handleEvent(
      new AMSchedulerEventTAEnded(ta21, container1.getId(),
        TaskAttemptState.SUCCEEDED));
    verify(rmClient, times(0)).releaseAssignedContainer(eq(container1.getId()));


    LOG.info("Sleeping to ensure that the scheduling loop runs");
    Thread.sleep(6000l);
    verify(rmClient).releaseAssignedContainer(eq(container1.getId()));
    eventHandler.verifyInvocation(AMContainerEventStopRequest.class);


    taskScheduler.close();
    taskSchedulerEventHandler.close();
  }

View Full Code Here

    tezConf.setLong(TezConfiguration.TEZ_AM_CONTAINER_REUSE_LOCALITY_DELAY_ALLOCATION_MILLIS, 0);
    tezConf.setLong(TezConfiguration.TEZ_AM_CONTAINER_SESSION_DELAY_ALLOCATION_MILLIS, -1);
    RackResolver.init(tezConf);
    TaskSchedulerAppCallback mockApp = mock(TaskSchedulerAppCallback.class);


    CapturingEventHandler eventHandler = new CapturingEventHandler();
    TezDAGID dagID1 = TezDAGID.getInstance("0", 1, 0);


    AMRMClient<CookieContainerRequest> rmClientCore = new AMRMClientForTest();
    TezAMRMClientAsync<CookieContainerRequest> rmClient = spy(new AMRMClientAsyncForTest(rmClientCore, 100));
    String appUrl = "url";
    String appMsg = "success";
    AppFinalStatus finalStatus =
        new AppFinalStatus(FinalApplicationStatus.SUCCEEDED, appMsg, appUrl);


    doReturn(finalStatus).when(mockApp).getFinalAppStatus();


    AppContext appContext = mock(AppContext.class);
    ChangingDAGIDAnswer dagIDAnswer = new ChangingDAGIDAnswer(dagID1);
    AMContainerMap amContainerMap = new AMContainerMap(mock(ContainerHeartbeatHandler.class),
        mock(TaskAttemptListener.class), new ContainerContextMatcher(), appContext);
    AMNodeMap amNodeMap = new AMNodeMap(eventHandler, appContext);
    doReturn(amContainerMap).when(appContext).getAllContainers();
    doReturn(amNodeMap).when(appContext).getAllNodes();
    doReturn(DAGAppMasterState.RUNNING).when(appContext).getAMState();
    doReturn(true).when(appContext).isSession();
    doAnswer(dagIDAnswer).when(appContext).getCurrentDAGID();
    doReturn(mock(ClusterInfo.class)).when(appContext).getClusterInfo();
    
    TaskSchedulerEventHandler taskSchedulerEventHandlerReal = new TaskSchedulerEventHandlerForTest(appContext, eventHandler, rmClient, new AlwaysMatchesContainerMatcher());
    TaskSchedulerEventHandler taskSchedulerEventHandler = spy(taskSchedulerEventHandlerReal);
    taskSchedulerEventHandler.init(tezConf);
    taskSchedulerEventHandler.start();


    TaskSchedulerWithDrainableAppCallback taskScheduler = (TaskSchedulerWithDrainableAppCallback) ((TaskSchedulerEventHandlerForTest) taskSchedulerEventHandler)
        .getSpyTaskScheduler();
    TaskSchedulerAppCallbackDrainable drainableAppCallback = taskScheduler.getDrainableAppCallback();
    AtomicBoolean drainNotifier = new AtomicBoolean(false);
    taskScheduler.delayedContainerManager.drainedDelayedContainers = drainNotifier;


    Resource resource1 = Resource.newInstance(1024, 1);
    String[] host1 = {"host1"};


    String []racks = {"/default-rack"};
    Priority priority1 = Priority.newInstance(1);


    String rsrc1 = "rsrc1";
    String rsrc2 = "rsrc2";
    String rsrc3 = "rsrc3";
    LocalResource lr1 = mock(LocalResource.class);
    LocalResource lr2 = mock(LocalResource.class);
    LocalResource lr3 = mock(LocalResource.class);
    
    AMContainerEventAssignTA assignEvent = null;
    
    Map<String, LocalResource> dag1LRs = Maps.newHashMap();
    dag1LRs.put(rsrc1, lr1);


    TezVertexID vertexID11 = TezVertexID.getInstance(dagID1, 1);
    
    //Vertex 1, Task 1, Attempt 1, host1, lr1
    TezTaskAttemptID taID111 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID11, 1), 1);
    TaskAttempt ta111 = mock(TaskAttempt.class);
    AMSchedulerEventTALaunchRequest lrEvent11 = createLaunchRequestEvent(taID111, ta111, resource1, host1, racks, priority1, dag1LRs);


    //Vertex 1, Task 2, Attempt 1, host1, lr1
    TezTaskAttemptID taID112 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID11, 2), 1);
    TaskAttempt ta112 = mock(TaskAttempt.class);
    AMSchedulerEventTALaunchRequest lrEvent12 = createLaunchRequestEvent(taID112, ta112, resource1, host1, racks, priority1, dag1LRs);


    taskSchedulerEventHandler.handleEvent(lrEvent11);
    taskSchedulerEventHandler.handleEvent(lrEvent12);


    Container container1 = createContainer(1, "host1", resource1, priority1);


    // One container allocated.
    drainNotifier.set(false);
    taskScheduler.onContainersAllocated(Collections.singletonList(container1));
    TestTaskSchedulerHelpers.waitForDelayedDrainNotify(drainNotifier);
    drainableAppCallback.drain();
    verify(taskSchedulerEventHandler).taskAllocated(eq(ta111), any(Object.class), eq(container1));
    assignEvent = (AMContainerEventAssignTA) eventHandler.verifyInvocation(AMContainerEventAssignTA.class);
    assertEquals(1, assignEvent.getRemoteTaskLocalResources().size());
    
    // Task assigned to container completed successfully. Container should be re-used.
    taskSchedulerEventHandler.handleEvent(new AMSchedulerEventTAEnded(ta111, container1.getId(), TaskAttemptState.SUCCEEDED));
    drainableAppCallback.drain();
    verify(taskScheduler).deallocateTask(eq(ta111), eq(true));
    verify(taskSchedulerEventHandler).taskAllocated(eq(ta112), any(Object.class), eq(container1));
    verify(rmClient, times(0)).releaseAssignedContainer(eq(container1.getId()));
    eventHandler.verifyNoInvocations(AMContainerEventStopRequest.class);
    assignEvent = (AMContainerEventAssignTA) eventHandler.verifyInvocation(AMContainerEventAssignTA.class);
    assertEquals(1, assignEvent.getRemoteTaskLocalResources().size());
    eventHandler.reset();


    // Task assigned to container completed successfully.
    // Verify reuse across hosts.
    taskSchedulerEventHandler.handleEvent(new AMSchedulerEventTAEnded(ta112, container1.getId(), TaskAttemptState.SUCCEEDED));
    drainableAppCallback.drain();
    verify(taskScheduler).deallocateTask(eq(ta112), eq(true));
    verify(rmClient, times(0)).releaseAssignedContainer(eq(container1.getId()));
    eventHandler.verifyNoInvocations(AMContainerEventStopRequest.class);
    eventHandler.reset();


    // Setup DAG2 with additional resources. Make sure the container, even without all resources, is reused.
    TezDAGID dagID2 = TezDAGID.getInstance("0", 2, 0);
    dagIDAnswer.setDAGID(dagID2);
    
    Map<String, LocalResource> dag2LRs = Maps.newHashMap();
    dag2LRs.put(rsrc2, lr2);
    dag2LRs.put(rsrc3, lr3);
    
    TezVertexID vertexID21 = TezVertexID.getInstance(dagID2, 1);
    
    //Vertex 2, Task 1, Attempt 1, host1, lr2
    TezTaskAttemptID taID211 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID21, 1), 1);
    TaskAttempt ta211 = mock(TaskAttempt.class);
    AMSchedulerEventTALaunchRequest lrEvent21 = createLaunchRequestEvent(taID211, ta211, resource1, host1, racks, priority1, dag2LRs);


    //Vertex 2, Task 2, Attempt 1, host1, lr2
    TezTaskAttemptID taID212 = TezTaskAttemptID.getInstance(TezTaskID.getInstance(vertexID21, 2), 1);
    TaskAttempt ta212 = mock(TaskAttempt.class);
    AMSchedulerEventTALaunchRequest lrEvent22 = createLaunchRequestEvent(taID212, ta212, resource1, host1, racks, priority1, dag2LRs);


    taskSchedulerEventHandler.handleEvent(lrEvent21);
    taskSchedulerEventHandler.handleEvent(lrEvent22);
    drainableAppCallback.drain();


    // TODO This is terrible, need a better way to ensure the scheduling loop has run
    LOG.info("Sleeping to ensure that the scheduling loop runs");
    Thread.sleep(6000l);
    verify(taskSchedulerEventHandler).taskAllocated(eq(ta211), any(Object.class), eq(container1));
    verify(rmClient, times(0)).releaseAssignedContainer(eq(container1.getId()));
    eventHandler.verifyNoInvocations(AMContainerEventStopRequest.class);
    assignEvent = (AMContainerEventAssignTA) eventHandler.verifyInvocation(AMContainerEventAssignTA.class);
    assertEquals(2, assignEvent.getRemoteTaskLocalResources().size());
    eventHandler.reset();


    taskSchedulerEventHandler.handleEvent(new AMSchedulerEventTAEnded(ta211, container1.getId(), TaskAttemptState.SUCCEEDED));
    drainableAppCallback.drain();
    verify(taskScheduler).deallocateTask(eq(ta211), eq(true));
    verify(taskSchedulerEventHandler).taskAllocated(eq(ta212), any(Object.class), eq(container1));
    verify(rmClient, times(0)).releaseAssignedContainer(eq(container1.getId()));
    eventHandler.verifyNoInvocations(AMContainerEventStopRequest.class);
    assignEvent = (AMContainerEventAssignTA) eventHandler.verifyInvocation(AMContainerEventAssignTA.class);
    assertEquals(2, assignEvent.getRemoteTaskLocalResources().size());
    eventHandler.reset();


    taskScheduler.close();
    taskSchedulerEventHandler.close();
  }

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Related Classes of org.apache.tez.dag.app.rm.TestTaskSchedulerHelpers.CapturingEventHandler

org.apache.tez.dag.app.rm.TestContainerReuse

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