Examples with TaskAttemptImpl org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl used on opensource projects

Example 26 with TaskAttemptImpl

use of org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl in project hadoop by apache.

the class TestTaskAttempt method testSingleRackRequest.

@Test
public void testSingleRackRequest() throws Exception {
    TaskAttemptImpl.RequestContainerTransition rct = new TaskAttemptImpl.RequestContainerTransition(false);
    EventHandler eventHandler = mock(EventHandler.class);
    String[] hosts = new String[3];
    hosts[0] = "host1";
    hosts[1] = "host2";
    hosts[2] = "host3";
    TaskSplitMetaInfo splitInfo = new TaskSplitMetaInfo(hosts, 0, 128 * 1024 * 1024l);
    TaskAttemptImpl mockTaskAttempt = createMapTaskAttemptImplForTest(eventHandler, splitInfo);
    TaskAttemptEvent mockTAEvent = mock(TaskAttemptEvent.class);
    rct.transition(mockTaskAttempt, mockTAEvent);
    ArgumentCaptor<Event> arg = ArgumentCaptor.forClass(Event.class);
    verify(eventHandler, times(2)).handle(arg.capture());
    if (!(arg.getAllValues().get(1) instanceof ContainerRequestEvent)) {
        Assert.fail("Second Event not of type ContainerRequestEvent");
    }
    ContainerRequestEvent cre = (ContainerRequestEvent) arg.getAllValues().get(1);
    String[] requestedRacks = cre.getRacks();
    //Only a single occurrence of /DefaultRack
    assertEquals(1, requestedRacks.length);
}

Example 27 with TaskAttemptImpl

use of org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl in project hadoop by apache.

the class TestTaskAttempt method testKillMapTaskWhileFailFinishing.

@Test
public void testKillMapTaskWhileFailFinishing() throws Exception {
    MockEventHandler eventHandler = new MockEventHandler();
    TaskAttemptImpl taImpl = createTaskAttemptImpl(eventHandler);
    taImpl.handle(new TaskAttemptEvent(taImpl.getID(), TaskAttemptEventType.TA_FAILMSG));
    assertEquals("Task attempt is not in FAILED state", taImpl.getState(), TaskAttemptState.FAILED);
    assertEquals("Task attempt's internal state is not " + "FAIL_FINISHING_CONTAINER", taImpl.getInternalState(), TaskAttemptStateInternal.FAIL_FINISHING_CONTAINER);
    // If the map task is killed when it is in FAIL_FINISHING_CONTAINER state,
    // the state will stay in FAIL_FINISHING_CONTAINER.
    taImpl.handle(new TaskAttemptEvent(taImpl.getID(), TaskAttemptEventType.TA_KILL));
    assertEquals("Task attempt is not in RUNNING state", taImpl.getState(), TaskAttemptState.FAILED);
    assertEquals("Task attempt's internal state is not " + "FAIL_FINISHING_CONTAINER", taImpl.getInternalState(), TaskAttemptStateInternal.FAIL_FINISHING_CONTAINER);
    taImpl.handle(new TaskAttemptEvent(taImpl.getID(), TaskAttemptEventType.TA_TIMED_OUT));
    assertEquals("Task attempt's internal state is not FAIL_CONTAINER_CLEANUP", taImpl.getInternalState(), TaskAttemptStateInternal.FAIL_CONTAINER_CLEANUP);
    taImpl.handle(new TaskAttemptEvent(taImpl.getID(), TaskAttemptEventType.TA_CONTAINER_CLEANED));
    assertEquals("Task attempt's internal state is not FAIL_TASK_CLEANUP", taImpl.getInternalState(), TaskAttemptStateInternal.FAIL_TASK_CLEANUP);
    taImpl.handle(new TaskAttemptEvent(taImpl.getID(), TaskAttemptEventType.TA_CLEANUP_DONE));
    assertEquals("Task attempt is not in KILLED state", taImpl.getState(), TaskAttemptState.FAILED);
    assertFalse("InternalError occurred", eventHandler.internalError);
}

Example 28 with TaskAttemptImpl

use of org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl in project hadoop by apache.

the class TestTaskAttempt method testDoubleTooManyFetchFailure.

@Test
public void testDoubleTooManyFetchFailure() throws Exception {
    ApplicationId appId = ApplicationId.newInstance(1, 2);
    ApplicationAttemptId appAttemptId = ApplicationAttemptId.newInstance(appId, 0);
    JobId jobId = MRBuilderUtils.newJobId(appId, 1);
    TaskId taskId = MRBuilderUtils.newTaskId(jobId, 1, TaskType.MAP);
    TaskAttemptId attemptId = MRBuilderUtils.newTaskAttemptId(taskId, 0);
    TaskId reduceTaskId = MRBuilderUtils.newTaskId(jobId, 1, TaskType.REDUCE);
    TaskAttemptId reduceTAId = MRBuilderUtils.newTaskAttemptId(reduceTaskId, 0);
    Path jobFile = mock(Path.class);
    MockEventHandler eventHandler = new MockEventHandler();
    TaskAttemptListener taListener = mock(TaskAttemptListener.class);
    when(taListener.getAddress()).thenReturn(new InetSocketAddress("localhost", 0));
    JobConf jobConf = new JobConf();
    jobConf.setClass("fs.file.impl", StubbedFS.class, FileSystem.class);
    jobConf.setBoolean("fs.file.impl.disable.cache", true);
    jobConf.set(JobConf.MAPRED_MAP_TASK_ENV, "");
    jobConf.set(MRJobConfig.APPLICATION_ATTEMPT_ID, "10");
    TaskSplitMetaInfo splits = mock(TaskSplitMetaInfo.class);
    when(splits.getLocations()).thenReturn(new String[] { "127.0.0.1" });
    AppContext appCtx = mock(AppContext.class);
    ClusterInfo clusterInfo = mock(ClusterInfo.class);
    Resource resource = mock(Resource.class);
    when(appCtx.getClusterInfo()).thenReturn(clusterInfo);
    when(resource.getMemorySize()).thenReturn(1024L);
    setupTaskAttemptFinishingMonitor(eventHandler, jobConf, appCtx);
    TaskAttemptImpl taImpl = new MapTaskAttemptImpl(taskId, 1, eventHandler, jobFile, 1, splits, jobConf, taListener, new Token(), new Credentials(), SystemClock.getInstance(), appCtx);
    NodeId nid = NodeId.newInstance("127.0.0.1", 0);
    ContainerId contId = ContainerId.newContainerId(appAttemptId, 3);
    Container container = mock(Container.class);
    when(container.getId()).thenReturn(contId);
    when(container.getNodeId()).thenReturn(nid);
    when(container.getNodeHttpAddress()).thenReturn("localhost:0");
    taImpl.handle(new TaskAttemptEvent(attemptId, TaskAttemptEventType.TA_SCHEDULE));
    taImpl.handle(new TaskAttemptContainerAssignedEvent(attemptId, container, mock(Map.class)));
    taImpl.handle(new TaskAttemptContainerLaunchedEvent(attemptId, 0));
    taImpl.handle(new TaskAttemptEvent(attemptId, TaskAttemptEventType.TA_DONE));
    taImpl.handle(new TaskAttemptEvent(attemptId, TaskAttemptEventType.TA_CONTAINER_COMPLETED));
    assertEquals("Task attempt is not in succeeded state", taImpl.getState(), TaskAttemptState.SUCCEEDED);
    taImpl.handle(new TaskAttemptTooManyFetchFailureEvent(attemptId, reduceTAId, "Host"));
    assertEquals("Task attempt is not in FAILED state", taImpl.getState(), TaskAttemptState.FAILED);
    taImpl.handle(new TaskAttemptEvent(attemptId, TaskAttemptEventType.TA_TOO_MANY_FETCH_FAILURE));
    assertEquals("Task attempt is not in FAILED state, still", taImpl.getState(), TaskAttemptState.FAILED);
    assertFalse("InternalError occurred trying to handle TA_CONTAINER_CLEANED", eventHandler.internalError);
}

Example 29 with TaskAttemptImpl

use of org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl in project hadoop by apache.

the class TestTaskAttempt method testAppDiognosticEventOnUnassignedTask.

@Test
public void testAppDiognosticEventOnUnassignedTask() throws Exception {
    ApplicationId appId = ApplicationId.newInstance(1, 2);
    ApplicationAttemptId appAttemptId = ApplicationAttemptId.newInstance(appId, 0);
    JobId jobId = MRBuilderUtils.newJobId(appId, 1);
    TaskId taskId = MRBuilderUtils.newTaskId(jobId, 1, TaskType.MAP);
    TaskAttemptId attemptId = MRBuilderUtils.newTaskAttemptId(taskId, 0);
    Path jobFile = mock(Path.class);
    MockEventHandler eventHandler = new MockEventHandler();
    TaskAttemptListener taListener = mock(TaskAttemptListener.class);
    when(taListener.getAddress()).thenReturn(new InetSocketAddress("localhost", 0));
    JobConf jobConf = new JobConf();
    jobConf.setClass("fs.file.impl", StubbedFS.class, FileSystem.class);
    jobConf.setBoolean("fs.file.impl.disable.cache", true);
    jobConf.set(JobConf.MAPRED_MAP_TASK_ENV, "");
    jobConf.set(MRJobConfig.APPLICATION_ATTEMPT_ID, "10");
    TaskSplitMetaInfo splits = mock(TaskSplitMetaInfo.class);
    when(splits.getLocations()).thenReturn(new String[] { "127.0.0.1" });
    AppContext appCtx = mock(AppContext.class);
    ClusterInfo clusterInfo = mock(ClusterInfo.class);
    Resource resource = mock(Resource.class);
    when(appCtx.getClusterInfo()).thenReturn(clusterInfo);
    when(resource.getMemorySize()).thenReturn(1024L);
    setupTaskAttemptFinishingMonitor(eventHandler, jobConf, appCtx);
    TaskAttemptImpl taImpl = new MapTaskAttemptImpl(taskId, 1, eventHandler, jobFile, 1, splits, jobConf, taListener, new Token(), new Credentials(), SystemClock.getInstance(), appCtx);
    NodeId nid = NodeId.newInstance("127.0.0.1", 0);
    ContainerId contId = ContainerId.newContainerId(appAttemptId, 3);
    Container container = mock(Container.class);
    when(container.getId()).thenReturn(contId);
    when(container.getNodeId()).thenReturn(nid);
    when(container.getNodeHttpAddress()).thenReturn("localhost:0");
    taImpl.handle(new TaskAttemptEvent(attemptId, TaskAttemptEventType.TA_SCHEDULE));
    taImpl.handle(new TaskAttemptDiagnosticsUpdateEvent(attemptId, "Task got killed"));
    assertFalse("InternalError occurred trying to handle TA_DIAGNOSTICS_UPDATE on assigned task", eventHandler.internalError);
    try {
        taImpl.handle(new TaskAttemptEvent(attemptId, TaskAttemptEventType.TA_KILL));
        Assert.assertTrue("No exception on UNASSIGNED STATE KILL event", true);
    } catch (Exception e) {
        Assert.assertFalse("Exception not expected for UNASSIGNED STATE KILL event", true);
    }
}

Example 30 with TaskAttemptImpl

use of org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl in project hadoop by apache.

the class TestTaskAttempt method testKillMapTaskAfterSuccess.

@Test
public void testKillMapTaskAfterSuccess() throws Exception {
    MockEventHandler eventHandler = new MockEventHandler();
    TaskAttemptImpl taImpl = createTaskAttemptImpl(eventHandler);
    taImpl.handle(new TaskAttemptEvent(taImpl.getID(), TaskAttemptEventType.TA_DONE));
    assertEquals("Task attempt is not in SUCCEEDED state", taImpl.getState(), TaskAttemptState.SUCCEEDED);
    assertEquals("Task attempt's internal state is not " + "SUCCESS_FINISHING_CONTAINER", taImpl.getInternalState(), TaskAttemptStateInternal.SUCCESS_FINISHING_CONTAINER);
    taImpl.handle(new TaskAttemptEvent(taImpl.getID(), TaskAttemptEventType.TA_CONTAINER_CLEANED));
    // Send a map task attempt kill event indicating next map attempt has to be
    // reschedule
    taImpl.handle(new TaskAttemptKillEvent(taImpl.getID(), "", true));
    assertEquals("Task attempt is not in KILLED state", taImpl.getState(), TaskAttemptState.KILLED);
    assertEquals("Task attempt's internal state is not KILLED", taImpl.getInternalState(), TaskAttemptStateInternal.KILLED);
    assertFalse("InternalError occurred", eventHandler.internalError);
    TaskEvent event = eventHandler.lastTaskEvent;
    assertEquals(TaskEventType.T_ATTEMPT_KILLED, event.getType());
    // Send an attempt killed event to TaskImpl forwarding the same reschedule
    // flag we received in task attempt kill event.
    assertTrue(((TaskTAttemptKilledEvent) event).getRescheduleAttempt());
}