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MAPREDUCE-4748. Invalid event: T_ATTEMPT_SUCCEEDED at SUCCEEDED. Contributed by Jason Lowe 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1402658 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Jason Darrell Lowe 2012-10-26 21:02:52 +00:00
parent b54e794fb0
commit 286c171987
3 changed files with 40 additions and 8 deletions
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2
hadoop-mapreduce-project/CHANGES.txt
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@ -613,6 +613,8 @@ Release 0.23.5 - UNRELEASED
MAPREDUCE-4730. Fix Reducer's EventFetcher to scale the map-completion
requests slowly to avoid HADOOP-8942. (Jason Lowe via vinodkv)
MAPREDUCE-4748. Invalid event: T_ATTEMPT_SUCCEEDED at SUCCEEDED. (jlowe)
Release 0.23.4 - UNRELEASED
INCOMPATIBLE CHANGES

5
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/job/impl/TaskImpl.java
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@ -203,7 +203,10 @@ public abstract class TaskImpl implements Task, EventHandler<TaskEvent> {
.addTransition(
TaskStateInternal.SUCCEEDED, TaskStateInternal.SUCCEEDED,
EnumSet.of(TaskEventType.T_ADD_SPEC_ATTEMPT,
TaskEventType.T_ATTEMPT_LAUNCHED))
TaskEventType.T_ATTEMPT_COMMIT_PENDING,
TaskEventType.T_ATTEMPT_LAUNCHED,
TaskEventType.T_ATTEMPT_SUCCEEDED,
TaskEventType.T_KILL))
// Transitions from FAILED state
.addTransition(TaskStateInternal.FAILED, TaskStateInternal.FAILED,

41
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/job/impl/TestTaskImpl.java
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@ -418,6 +418,21 @@ public class TestTaskImpl {
killRunningTaskAttempt(getLastAttempt().getAttemptId());
}
@Test
public void testKillSuccessfulTask() {
LOG.info("--- START: testKillSuccesfulTask ---");
mockTask = createMockTask(TaskType.MAP);
TaskId taskId = getNewTaskID();
scheduleTaskAttempt(taskId);
launchTaskAttempt(getLastAttempt().getAttemptId());
commitTaskAttempt(getLastAttempt().getAttemptId());
mockTask.handle(new TaskTAttemptEvent(getLastAttempt().getAttemptId(),
TaskEventType.T_ATTEMPT_SUCCEEDED));
assertTaskSucceededState();
mockTask.handle(new TaskEvent(taskId, TaskEventType.T_KILL));
assertTaskSucceededState();
}
@Test
public void testTaskProgress() {
LOG.info("--- START: testTaskProgress ---");
@ -485,7 +500,8 @@ public class TestTaskImpl {
assertTaskSucceededState();
}
private void runSpeculativeTaskAttemptSucceedsEvenIfFirstFails(TaskEventType failEvent) {
private void runSpeculativeTaskAttemptSucceeds(
TaskEventType firstAttemptFinishEvent) {
TaskId taskId = getNewTaskID();
scheduleTaskAttempt(taskId);
launchTaskAttempt(getLastAttempt().getAttemptId());
@ -502,9 +518,9 @@ public class TestTaskImpl {
// The task should now have succeeded
assertTaskSucceededState();
// Now fail the first task attempt, after the second has succeeded
// Now complete the first task attempt, after the second has succeeded
mockTask.handle(new TaskTAttemptEvent(taskAttempts.get(0).getAttemptId(),
failEvent));
firstAttemptFinishEvent));
// The task should still be in the succeeded state
assertTaskSucceededState();
@ -513,25 +529,36 @@ public class TestTaskImpl {
@Test
public void testMapSpeculativeTaskAttemptSucceedsEvenIfFirstFails() {
mockTask = createMockTask(TaskType.MAP);
runSpeculativeTaskAttemptSucceedsEvenIfFirstFails(TaskEventType.T_ATTEMPT_FAILED);
runSpeculativeTaskAttemptSucceeds(TaskEventType.T_ATTEMPT_FAILED);
}
@Test
public void testReduceSpeculativeTaskAttemptSucceedsEvenIfFirstFails() {
mockTask = createMockTask(TaskType.REDUCE);
runSpeculativeTaskAttemptSucceedsEvenIfFirstFails(TaskEventType.T_ATTEMPT_FAILED);
runSpeculativeTaskAttemptSucceeds(TaskEventType.T_ATTEMPT_FAILED);
}
@Test
public void testMapSpeculativeTaskAttemptSucceedsEvenIfFirstIsKilled() {
mockTask = createMockTask(TaskType.MAP);
runSpeculativeTaskAttemptSucceedsEvenIfFirstFails(TaskEventType.T_ATTEMPT_KILLED);
runSpeculativeTaskAttemptSucceeds(TaskEventType.T_ATTEMPT_KILLED);
}
@Test
public void testReduceSpeculativeTaskAttemptSucceedsEvenIfFirstIsKilled() {
mockTask = createMockTask(TaskType.REDUCE);
runSpeculativeTaskAttemptSucceedsEvenIfFirstFails(TaskEventType.T_ATTEMPT_KILLED);
runSpeculativeTaskAttemptSucceeds(TaskEventType.T_ATTEMPT_KILLED);
}
@Test
public void testMultipleTaskAttemptsSucceed() {
mockTask = createMockTask(TaskType.MAP);
runSpeculativeTaskAttemptSucceeds(TaskEventType.T_ATTEMPT_SUCCEEDED);
}
@Test
public void testCommitAfterSucceeds() {
mockTask = createMockTask(TaskType.REDUCE);
runSpeculativeTaskAttemptSucceeds(TaskEventType.T_ATTEMPT_COMMIT_PENDING);
}
}