MAPREDUCE-4607. Race condition in ReduceTask completion can result in Task being incorrectly failed. Contributed by Bikas Saha.
git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1383422 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Thomas White
parent
bdcbc2d1ef
commit
3b46295c28
|
|
@ -71,6 +71,7 @@ import org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId;
|
|||
import org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptReport;
|
||||
import org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptState;
|
||||
import org.apache.hadoop.mapreduce.v2.api.records.TaskId;
|
||||
import org.apache.hadoop.mapreduce.v2.api.records.TaskState;
|
||||
import org.apache.hadoop.mapreduce.v2.api.records.TaskType;
|
||||
import org.apache.hadoop.mapreduce.v2.app.AppContext;
|
||||
import org.apache.hadoop.mapreduce.v2.app.TaskAttemptListener;
|
||||
|
|
@ -86,6 +87,7 @@ import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptEvent;
|
|||
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptEventType;
|
||||
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptKillEvent;
|
||||
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptStatusUpdateEvent;
|
||||
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskEvent;
|
||||
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptStatusUpdateEvent.TaskAttemptStatus;
|
||||
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskEventType;
|
||||
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskTAttemptEvent;
|
||||
|
|
@ -120,6 +122,7 @@ import org.apache.hadoop.yarn.event.EventHandler;
|
|||
import org.apache.hadoop.yarn.factories.RecordFactory;
|
||||
import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider;
|
||||
import org.apache.hadoop.yarn.state.InvalidStateTransitonException;
|
||||
import org.apache.hadoop.yarn.state.MultipleArcTransition;
|
||||
import org.apache.hadoop.yarn.state.SingleArcTransition;
|
||||
import org.apache.hadoop.yarn.state.StateMachine;
|
||||
import org.apache.hadoop.yarn.state.StateMachineFactory;
|
||||
|
|
@ -128,6 +131,8 @@ import org.apache.hadoop.yarn.util.BuilderUtils;
|
|||
import org.apache.hadoop.yarn.util.ConverterUtils;
|
||||
import org.apache.hadoop.yarn.util.RackResolver;
|
||||
|
||||
import com.google.common.base.Preconditions;
|
||||
|
||||
/**
|
||||
* Implementation of TaskAttempt interface.
|
||||
*/
|
||||
|
|
@ -404,10 +409,10 @@ public abstract class TaskAttemptImpl implements
|
|||
TaskAttemptState.FAILED,
|
||||
TaskAttemptEventType.TA_TOO_MANY_FETCH_FAILURE,
|
||||
new TooManyFetchFailureTransition())
|
||||
.addTransition(
|
||||
TaskAttemptState.SUCCEEDED, TaskAttemptState.KILLED,
|
||||
TaskAttemptEventType.TA_KILL,
|
||||
new KilledAfterSuccessTransition())
|
||||
.addTransition(TaskAttemptState.SUCCEEDED,
|
||||
EnumSet.of(TaskAttemptState.SUCCEEDED, TaskAttemptState.KILLED),
|
||||
TaskAttemptEventType.TA_KILL,
|
||||
new KilledAfterSuccessTransition())
|
||||
.addTransition(
|
||||
TaskAttemptState.SUCCEEDED, TaskAttemptState.SUCCEEDED,
|
||||
TaskAttemptEventType.TA_DIAGNOSTICS_UPDATE,
|
||||
|
|
@ -1483,6 +1488,9 @@ public abstract class TaskAttemptImpl implements
|
|||
@SuppressWarnings("unchecked")
|
||||
@Override
|
||||
public void transition(TaskAttemptImpl taskAttempt, TaskAttemptEvent event) {
|
||||
// too many fetch failure can only happen for map tasks
|
||||
Preconditions
|
||||
.checkArgument(taskAttempt.getID().getTaskId().getTaskType() == TaskType.MAP);
|
||||
//add to diagnostic
|
||||
taskAttempt.addDiagnosticInfo("Too Many fetch failures.Failing the attempt");
|
||||
//set the finish time
|
||||
|
|
@ -1506,15 +1514,30 @@ public abstract class TaskAttemptImpl implements
|
|||
}
|
||||
|
||||
private static class KilledAfterSuccessTransition implements
|
||||
SingleArcTransition<TaskAttemptImpl, TaskAttemptEvent> {
|
||||
MultipleArcTransition<TaskAttemptImpl, TaskAttemptEvent, TaskAttemptState> {
|
||||
|
||||
@SuppressWarnings("unchecked")
|
||||
@Override
|
||||
public void transition(TaskAttemptImpl taskAttempt,
|
||||
public TaskAttemptState transition(TaskAttemptImpl taskAttempt,
|
||||
TaskAttemptEvent event) {
|
||||
TaskAttemptKillEvent msgEvent = (TaskAttemptKillEvent) event;
|
||||
//add to diagnostic
|
||||
taskAttempt.addDiagnosticInfo(msgEvent.getMessage());
|
||||
if(taskAttempt.getID().getTaskId().getTaskType() == TaskType.REDUCE) {
|
||||
// after a reduce task has succeeded, its outputs are in safe in HDFS.
|
||||
// logically such a task should not be killed. we only come here when
|
||||
// there is a race condition in the event queue. E.g. some logic sends
|
||||
// a kill request to this attempt when the successful completion event
|
||||
// for this task is already in the event queue. so the kill event will
|
||||
// get executed immediately after the attempt is marked successful and
|
||||
// result in this transition being exercised.
|
||||
// ignore this for reduce tasks
|
||||
LOG.info("Ignoring killed event for successful reduce task attempt" +
|
||||
taskAttempt.getID().toString());
|
||||
return TaskAttemptState.SUCCEEDED;
|
||||
}
|
||||
if(event instanceof TaskAttemptKillEvent) {
|
||||
TaskAttemptKillEvent msgEvent = (TaskAttemptKillEvent) event;
|
||||
//add to diagnostic
|
||||
taskAttempt.addDiagnosticInfo(msgEvent.getMessage());
|
||||
}
|
||||
|
||||
// not setting a finish time since it was set on success
|
||||
assert (taskAttempt.getFinishTime() != 0);
|
||||
|
|
@ -1528,6 +1551,7 @@ public abstract class TaskAttemptImpl implements
|
|||
.getTaskId().getJobId(), tauce));
|
||||
taskAttempt.eventHandler.handle(new TaskTAttemptEvent(
|
||||
taskAttempt.attemptId, TaskEventType.T_ATTEMPT_KILLED));
|
||||
return TaskAttemptState.KILLED;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -191,12 +191,12 @@ public abstract class TaskImpl implements Task, EventHandler<TaskEvent> {
|
|||
TaskEventType.T_ADD_SPEC_ATTEMPT))
|
||||
|
||||
// Transitions from SUCCEEDED state
|
||||
.addTransition(TaskState.SUCCEEDED, //only possible for map tasks
|
||||
.addTransition(TaskState.SUCCEEDED,
|
||||
EnumSet.of(TaskState.SCHEDULED, TaskState.SUCCEEDED, TaskState.FAILED),
|
||||
TaskEventType.T_ATTEMPT_FAILED, new MapRetroactiveFailureTransition())
|
||||
.addTransition(TaskState.SUCCEEDED, //only possible for map tasks
|
||||
TaskEventType.T_ATTEMPT_FAILED, new RetroactiveFailureTransition())
|
||||
.addTransition(TaskState.SUCCEEDED,
|
||||
EnumSet.of(TaskState.SCHEDULED, TaskState.SUCCEEDED),
|
||||
TaskEventType.T_ATTEMPT_KILLED, new MapRetroactiveKilledTransition())
|
||||
TaskEventType.T_ATTEMPT_KILLED, new RetroactiveKilledTransition())
|
||||
// Ignore-able transitions.
|
||||
.addTransition(
|
||||
TaskState.SUCCEEDED, TaskState.SUCCEEDED,
|
||||
|
|
@ -897,7 +897,7 @@ public abstract class TaskImpl implements Task, EventHandler<TaskEvent> {
|
|||
}
|
||||
}
|
||||
|
||||
private static class MapRetroactiveFailureTransition
|
||||
private static class RetroactiveFailureTransition
|
||||
extends AttemptFailedTransition {
|
||||
|
||||
@Override
|
||||
|
|
@ -911,8 +911,8 @@ public abstract class TaskImpl implements Task, EventHandler<TaskEvent> {
|
|||
return TaskState.SUCCEEDED;
|
||||
}
|
||||
}
|
||||
|
||||
//verify that this occurs only for map task
|
||||
|
||||
// a successful REDUCE task should not be overridden
|
||||
//TODO: consider moving it to MapTaskImpl
|
||||
if (!TaskType.MAP.equals(task.getType())) {
|
||||
LOG.error("Unexpected event for REDUCE task " + event.getType());
|
||||
|
|
@ -938,42 +938,46 @@ public abstract class TaskImpl implements Task, EventHandler<TaskEvent> {
|
|||
}
|
||||
}
|
||||
|
||||
private static class MapRetroactiveKilledTransition implements
|
||||
private static class RetroactiveKilledTransition implements
|
||||
MultipleArcTransition<TaskImpl, TaskEvent, TaskState> {
|
||||
|
||||
@Override
|
||||
public TaskState transition(TaskImpl task, TaskEvent event) {
|
||||
// verify that this occurs only for map task
|
||||
TaskAttemptId attemptId = null;
|
||||
if (event instanceof TaskTAttemptEvent) {
|
||||
TaskTAttemptEvent castEvent = (TaskTAttemptEvent) event;
|
||||
attemptId = castEvent.getTaskAttemptID();
|
||||
if (task.getState() == TaskState.SUCCEEDED &&
|
||||
!attemptId.equals(task.successfulAttempt)) {
|
||||
// don't allow a different task attempt to override a previous
|
||||
// succeeded state
|
||||
return TaskState.SUCCEEDED;
|
||||
}
|
||||
}
|
||||
|
||||
// a successful REDUCE task should not be overridden
|
||||
// TODO: consider moving it to MapTaskImpl
|
||||
if (!TaskType.MAP.equals(task.getType())) {
|
||||
LOG.error("Unexpected event for REDUCE task " + event.getType());
|
||||
task.internalError(event.getType());
|
||||
}
|
||||
|
||||
TaskTAttemptEvent attemptEvent = (TaskTAttemptEvent) event;
|
||||
TaskAttemptId attemptId = attemptEvent.getTaskAttemptID();
|
||||
if(task.successfulAttempt == attemptId) {
|
||||
// successful attempt is now killed. reschedule
|
||||
// tell the job about the rescheduling
|
||||
unSucceed(task);
|
||||
task.handleTaskAttemptCompletion(
|
||||
attemptId,
|
||||
TaskAttemptCompletionEventStatus.KILLED);
|
||||
task.eventHandler.handle(new JobMapTaskRescheduledEvent(task.taskId));
|
||||
// typically we are here because this map task was run on a bad node and
|
||||
// we want to reschedule it on a different node.
|
||||
// Depending on whether there are previous failed attempts or not this
|
||||
// can SCHEDULE or RESCHEDULE the container allocate request. If this
|
||||
// SCHEDULE's then the dataLocal hosts of this taskAttempt will be used
|
||||
// from the map splitInfo. So the bad node might be sent as a location
|
||||
// to the RM. But the RM would ignore that just like it would ignore
|
||||
// currently pending container requests affinitized to bad nodes.
|
||||
task.addAndScheduleAttempt();
|
||||
return TaskState.SCHEDULED;
|
||||
} else {
|
||||
// nothing to do
|
||||
return TaskState.SUCCEEDED;
|
||||
}
|
||||
// successful attempt is now killed. reschedule
|
||||
// tell the job about the rescheduling
|
||||
unSucceed(task);
|
||||
task.handleTaskAttemptCompletion(attemptId,
|
||||
TaskAttemptCompletionEventStatus.KILLED);
|
||||
task.eventHandler.handle(new JobMapTaskRescheduledEvent(task.taskId));
|
||||
// typically we are here because this map task was run on a bad node and
|
||||
// we want to reschedule it on a different node.
|
||||
// Depending on whether there are previous failed attempts or not this
|
||||
// can SCHEDULE or RESCHEDULE the container allocate request. If this
|
||||
// SCHEDULE's then the dataLocal hosts of this taskAttempt will be used
|
||||
// from the map splitInfo. So the bad node might be sent as a location
|
||||
// to the RM. But the RM would ignore that just like it would ignore
|
||||
// currently pending container requests affinitized to bad nodes.
|
||||
task.addAndScheduleAttempt();
|
||||
return TaskState.SCHEDULED;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -180,7 +180,7 @@ public class TestMRApp {
|
|||
@Test
|
||||
public void testUpdatedNodes() throws Exception {
|
||||
int runCount = 0;
|
||||
MRApp app = new MRAppWithHistory(2, 1, false, this.getClass().getName(),
|
||||
MRApp app = new MRAppWithHistory(2, 2, false, this.getClass().getName(),
|
||||
true, ++runCount);
|
||||
Configuration conf = new Configuration();
|
||||
// after half of the map completion, reduce will start
|
||||
|
|
@ -189,7 +189,7 @@ public class TestMRApp {
|
|||
conf.setBoolean(MRJobConfig.JOB_UBERTASK_ENABLE, false);
|
||||
Job job = app.submit(conf);
|
||||
app.waitForState(job, JobState.RUNNING);
|
||||
Assert.assertEquals("Num tasks not correct", 3, job.getTasks().size());
|
||||
Assert.assertEquals("Num tasks not correct", 4, job.getTasks().size());
|
||||
Iterator<Task> it = job.getTasks().values().iterator();
|
||||
Task mapTask1 = it.next();
|
||||
Task mapTask2 = it.next();
|
||||
|
|
@ -272,18 +272,19 @@ public class TestMRApp {
|
|||
|
||||
// rerun
|
||||
// in rerun the 1st map will be recovered from previous run
|
||||
app = new MRAppWithHistory(2, 1, false, this.getClass().getName(), false,
|
||||
app = new MRAppWithHistory(2, 2, false, this.getClass().getName(), false,
|
||||
++runCount);
|
||||
conf = new Configuration();
|
||||
conf.setBoolean(MRJobConfig.MR_AM_JOB_RECOVERY_ENABLE, true);
|
||||
conf.setBoolean(MRJobConfig.JOB_UBERTASK_ENABLE, false);
|
||||
job = app.submit(conf);
|
||||
app.waitForState(job, JobState.RUNNING);
|
||||
Assert.assertEquals("No of tasks not correct", 3, job.getTasks().size());
|
||||
Assert.assertEquals("No of tasks not correct", 4, job.getTasks().size());
|
||||
it = job.getTasks().values().iterator();
|
||||
mapTask1 = it.next();
|
||||
mapTask2 = it.next();
|
||||
Task reduceTask = it.next();
|
||||
Task reduceTask1 = it.next();
|
||||
Task reduceTask2 = it.next();
|
||||
|
||||
// map 1 will be recovered, no need to send done
|
||||
app.waitForState(mapTask1, TaskState.SUCCEEDED);
|
||||
|
|
@ -306,19 +307,36 @@ public class TestMRApp {
|
|||
Assert.assertEquals("Expecting 1 more completion events for success", 3,
|
||||
events.length);
|
||||
|
||||
app.waitForState(reduceTask, TaskState.RUNNING);
|
||||
TaskAttempt task3Attempt = reduceTask.getAttempts().values().iterator()
|
||||
app.waitForState(reduceTask1, TaskState.RUNNING);
|
||||
app.waitForState(reduceTask2, TaskState.RUNNING);
|
||||
|
||||
TaskAttempt task3Attempt = reduceTask1.getAttempts().values().iterator()
|
||||
.next();
|
||||
app.getContext()
|
||||
.getEventHandler()
|
||||
.handle(
|
||||
new TaskAttemptEvent(task3Attempt.getID(),
|
||||
TaskAttemptEventType.TA_DONE));
|
||||
app.waitForState(reduceTask, TaskState.SUCCEEDED);
|
||||
app.waitForState(reduceTask1, TaskState.SUCCEEDED);
|
||||
app.getContext()
|
||||
.getEventHandler()
|
||||
.handle(
|
||||
new TaskAttemptEvent(task3Attempt.getID(),
|
||||
TaskAttemptEventType.TA_KILL));
|
||||
app.waitForState(reduceTask1, TaskState.SUCCEEDED);
|
||||
|
||||
TaskAttempt task4Attempt = reduceTask2.getAttempts().values().iterator()
|
||||
.next();
|
||||
app.getContext()
|
||||
.getEventHandler()
|
||||
.handle(
|
||||
new TaskAttemptEvent(task4Attempt.getID(),
|
||||
TaskAttemptEventType.TA_DONE));
|
||||
app.waitForState(reduceTask2, TaskState.SUCCEEDED);
|
||||
|
||||
events = job.getTaskAttemptCompletionEvents(0, 100);
|
||||
Assert.assertEquals("Expecting 1 more completion events for success", 4,
|
||||
events.length);
|
||||
Assert.assertEquals("Expecting 2 more completion events for reduce success",
|
||||
5, events.length);
|
||||
|
||||
// job succeeds
|
||||
app.waitForState(job, JobState.SUCCEEDED);
|
||||
|
|
|
|||
|
|
@ -84,7 +84,6 @@ public class TestTaskImpl {
|
|||
private ApplicationId appId;
|
||||
private TaskSplitMetaInfo taskSplitMetaInfo;
|
||||
private String[] dataLocations = new String[0];
|
||||
private final TaskType taskType = TaskType.MAP;
|
||||
private AppContext appContext;
|
||||
|
||||
private int startCount = 0;
|
||||
|
|
@ -97,6 +96,7 @@ public class TestTaskImpl {
|
|||
private class MockTaskImpl extends TaskImpl {
|
||||
|
||||
private int taskAttemptCounter = 0;
|
||||
TaskType taskType;
|
||||
|
||||
public MockTaskImpl(JobId jobId, int partition,
|
||||
EventHandler eventHandler, Path remoteJobConfFile, JobConf conf,
|
||||
|
|
@ -104,11 +104,12 @@ public class TestTaskImpl {
|
|||
Token<JobTokenIdentifier> jobToken,
|
||||
Credentials credentials, Clock clock,
|
||||
Map<TaskId, TaskInfo> completedTasksFromPreviousRun, int startCount,
|
||||
MRAppMetrics metrics, AppContext appContext) {
|
||||
MRAppMetrics metrics, AppContext appContext, TaskType taskType) {
|
||||
super(jobId, taskType , partition, eventHandler,
|
||||
remoteJobConfFile, conf, taskAttemptListener, committer,
|
||||
jobToken, credentials, clock,
|
||||
completedTasksFromPreviousRun, startCount, metrics, appContext);
|
||||
this.taskType = taskType;
|
||||
}
|
||||
|
||||
@Override
|
||||
|
|
@ -120,7 +121,7 @@ public class TestTaskImpl {
|
|||
protected TaskAttemptImpl createAttempt() {
|
||||
MockTaskAttemptImpl attempt = new MockTaskAttemptImpl(getID(), ++taskAttemptCounter,
|
||||
eventHandler, taskAttemptListener, remoteJobConfFile, partition,
|
||||
conf, committer, jobToken, credentials, clock, appContext);
|
||||
conf, committer, jobToken, credentials, clock, appContext, taskType);
|
||||
taskAttempts.add(attempt);
|
||||
return attempt;
|
||||
}
|
||||
|
|
@ -142,18 +143,20 @@ public class TestTaskImpl {
|
|||
private float progress = 0;
|
||||
private TaskAttemptState state = TaskAttemptState.NEW;
|
||||
private TaskAttemptId attemptId;
|
||||
private TaskType taskType;
|
||||
|
||||
public MockTaskAttemptImpl(TaskId taskId, int id, EventHandler eventHandler,
|
||||
TaskAttemptListener taskAttemptListener, Path jobFile, int partition,
|
||||
JobConf conf, OutputCommitter committer,
|
||||
Token<JobTokenIdentifier> jobToken,
|
||||
Credentials credentials, Clock clock,
|
||||
AppContext appContext) {
|
||||
AppContext appContext, TaskType taskType) {
|
||||
super(taskId, id, eventHandler, taskAttemptListener, jobFile, partition, conf,
|
||||
dataLocations, committer, jobToken, credentials, clock, appContext);
|
||||
attemptId = Records.newRecord(TaskAttemptId.class);
|
||||
attemptId.setId(id);
|
||||
attemptId.setTaskId(taskId);
|
||||
this.taskType = taskType;
|
||||
}
|
||||
|
||||
public TaskAttemptId getAttemptId() {
|
||||
|
|
@ -162,7 +165,7 @@ public class TestTaskImpl {
|
|||
|
||||
@Override
|
||||
protected Task createRemoteTask() {
|
||||
return new MockTask();
|
||||
return new MockTask(taskType);
|
||||
}
|
||||
|
||||
public float getProgress() {
|
||||
|
|
@ -185,6 +188,11 @@ public class TestTaskImpl {
|
|||
|
||||
private class MockTask extends Task {
|
||||
|
||||
private TaskType taskType;
|
||||
MockTask(TaskType taskType) {
|
||||
this.taskType = taskType;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void run(JobConf job, TaskUmbilicalProtocol umbilical)
|
||||
throws IOException, ClassNotFoundException, InterruptedException {
|
||||
|
|
@ -193,7 +201,7 @@ public class TestTaskImpl {
|
|||
|
||||
@Override
|
||||
public boolean isMapTask() {
|
||||
return true;
|
||||
return (taskType == TaskType.MAP);
|
||||
}
|
||||
|
||||
}
|
||||
|
|
@ -227,14 +235,15 @@ public class TestTaskImpl {
|
|||
taskSplitMetaInfo = mock(TaskSplitMetaInfo.class);
|
||||
when(taskSplitMetaInfo.getLocations()).thenReturn(dataLocations);
|
||||
|
||||
taskAttempts = new ArrayList<MockTaskAttemptImpl>();
|
||||
|
||||
mockTask = new MockTaskImpl(jobId, partition, dispatcher.getEventHandler(),
|
||||
taskAttempts = new ArrayList<MockTaskAttemptImpl>();
|
||||
}
|
||||
|
||||
private MockTaskImpl createMockTask(TaskType taskType) {
|
||||
return new MockTaskImpl(jobId, partition, dispatcher.getEventHandler(),
|
||||
remoteJobConfFile, conf, taskAttemptListener, committer, jobToken,
|
||||
credentials, clock,
|
||||
completedTasksFromPreviousRun, startCount,
|
||||
metrics, appContext);
|
||||
|
||||
metrics, appContext, taskType);
|
||||
}
|
||||
|
||||
@After
|
||||
|
|
@ -342,6 +351,7 @@ public class TestTaskImpl {
|
|||
@Test
|
||||
public void testInit() {
|
||||
LOG.info("--- START: testInit ---");
|
||||
mockTask = createMockTask(TaskType.MAP);
|
||||
assertTaskNewState();
|
||||
assert(taskAttempts.size() == 0);
|
||||
}
|
||||
|
|
@ -352,6 +362,7 @@ public class TestTaskImpl {
|
|||
*/
|
||||
public void testScheduleTask() {
|
||||
LOG.info("--- START: testScheduleTask ---");
|
||||
mockTask = createMockTask(TaskType.MAP);
|
||||
TaskId taskId = getNewTaskID();
|
||||
scheduleTaskAttempt(taskId);
|
||||
}
|
||||
|
|
@ -362,6 +373,7 @@ public class TestTaskImpl {
|
|||
*/
|
||||
public void testKillScheduledTask() {
|
||||
LOG.info("--- START: testKillScheduledTask ---");
|
||||
mockTask = createMockTask(TaskType.MAP);
|
||||
TaskId taskId = getNewTaskID();
|
||||
scheduleTaskAttempt(taskId);
|
||||
killTask(taskId);
|
||||
|
|
@ -374,6 +386,7 @@ public class TestTaskImpl {
|
|||
*/
|
||||
public void testKillScheduledTaskAttempt() {
|
||||
LOG.info("--- START: testKillScheduledTaskAttempt ---");
|
||||
mockTask = createMockTask(TaskType.MAP);
|
||||
TaskId taskId = getNewTaskID();
|
||||
scheduleTaskAttempt(taskId);
|
||||
killScheduledTaskAttempt(getLastAttempt().getAttemptId());
|
||||
|
|
@ -386,6 +399,7 @@ public class TestTaskImpl {
|
|||
*/
|
||||
public void testLaunchTaskAttempt() {
|
||||
LOG.info("--- START: testLaunchTaskAttempt ---");
|
||||
mockTask = createMockTask(TaskType.MAP);
|
||||
TaskId taskId = getNewTaskID();
|
||||
scheduleTaskAttempt(taskId);
|
||||
launchTaskAttempt(getLastAttempt().getAttemptId());
|
||||
|
|
@ -398,6 +412,7 @@ public class TestTaskImpl {
|
|||
*/
|
||||
public void testKillRunningTaskAttempt() {
|
||||
LOG.info("--- START: testKillRunningTaskAttempt ---");
|
||||
mockTask = createMockTask(TaskType.MAP);
|
||||
TaskId taskId = getNewTaskID();
|
||||
scheduleTaskAttempt(taskId);
|
||||
launchTaskAttempt(getLastAttempt().getAttemptId());
|
||||
|
|
@ -407,6 +422,7 @@ public class TestTaskImpl {
|
|||
@Test
|
||||
public void testTaskProgress() {
|
||||
LOG.info("--- START: testTaskProgress ---");
|
||||
mockTask = createMockTask(TaskType.MAP);
|
||||
|
||||
// launch task
|
||||
TaskId taskId = getNewTaskID();
|
||||
|
|
@ -444,6 +460,7 @@ public class TestTaskImpl {
|
|||
|
||||
@Test
|
||||
public void testFailureDuringTaskAttemptCommit() {
|
||||
mockTask = createMockTask(TaskType.MAP);
|
||||
TaskId taskId = getNewTaskID();
|
||||
scheduleTaskAttempt(taskId);
|
||||
launchTaskAttempt(getLastAttempt().getAttemptId());
|
||||
|
|
@ -469,8 +486,7 @@ public class TestTaskImpl {
|
|||
assertTaskSucceededState();
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testSpeculativeTaskAttemptSucceedsEvenIfFirstFails() {
|
||||
private void runSpeculativeTaskAttemptSucceedsEvenIfFirstFails(TaskEventType failEvent) {
|
||||
TaskId taskId = getNewTaskID();
|
||||
scheduleTaskAttempt(taskId);
|
||||
launchTaskAttempt(getLastAttempt().getAttemptId());
|
||||
|
|
@ -489,11 +505,34 @@ public class TestTaskImpl {
|
|||
|
||||
// Now fail the first task attempt, after the second has succeeded
|
||||
mockTask.handle(new TaskTAttemptEvent(taskAttempts.get(0).getAttemptId(),
|
||||
TaskEventType.T_ATTEMPT_FAILED));
|
||||
failEvent));
|
||||
|
||||
// The task should still be in the succeeded state
|
||||
assertTaskSucceededState();
|
||||
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testMapSpeculativeTaskAttemptSucceedsEvenIfFirstFails() {
|
||||
mockTask = createMockTask(TaskType.MAP);
|
||||
runSpeculativeTaskAttemptSucceedsEvenIfFirstFails(TaskEventType.T_ATTEMPT_FAILED);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testReduceSpeculativeTaskAttemptSucceedsEvenIfFirstFails() {
|
||||
mockTask = createMockTask(TaskType.REDUCE);
|
||||
runSpeculativeTaskAttemptSucceedsEvenIfFirstFails(TaskEventType.T_ATTEMPT_FAILED);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testMapSpeculativeTaskAttemptSucceedsEvenIfFirstIsKilled() {
|
||||
mockTask = createMockTask(TaskType.MAP);
|
||||
runSpeculativeTaskAttemptSucceedsEvenIfFirstFails(TaskEventType.T_ATTEMPT_KILLED);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testReduceSpeculativeTaskAttemptSucceedsEvenIfFirstIsKilled() {
|
||||
mockTask = createMockTask(TaskType.REDUCE);
|
||||
runSpeculativeTaskAttemptSucceedsEvenIfFirstFails(TaskEventType.T_ATTEMPT_KILLED);
|
||||
}
|
||||
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue