本文整理汇总了Java中org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptEvent.getTaskAttemptID方法的典型用法代码示例。如果您正苦于以下问题：Java TaskAttemptEvent.getTaskAttemptID方法的具体用法？Java TaskAttemptEvent.getTaskAttemptID怎么用？Java TaskAttemptEvent.getTaskAttemptID使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptEvent的用法示例。
在下文中一共展示了TaskAttemptEvent.getTaskAttemptID方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: testKillTaskWait
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptEvent; //导入方法依赖的package包/类
@Test
public void testKillTaskWait() throws Exception {
final Dispatcher dispatcher = new AsyncDispatcher() {
private TaskAttemptEvent cachedKillEvent;
@Override
protected void dispatch(Event event) {
if (event instanceof TaskAttemptEvent) {
TaskAttemptEvent killEvent = (TaskAttemptEvent) event;
if (killEvent.getType() == TaskAttemptEventType.TA_KILL) {
TaskAttemptId taID = killEvent.getTaskAttemptID();
if (taID.getTaskId().getTaskType() == TaskType.REDUCE
&& taID.getTaskId().getId() == 0 && taID.getId() == 0) {
// Task is asking the reduce TA to kill itself. 'Create' a race
// condition. Make the task succeed and then inform the task that
// TA has succeeded. Once Task gets the TA succeeded event at
// KILL_WAIT, then relay the actual kill signal to TA
super.dispatch(new TaskAttemptEvent(taID,
TaskAttemptEventType.TA_DONE));
super.dispatch(new TaskAttemptEvent(taID,
TaskAttemptEventType.TA_CONTAINER_CLEANED));
super.dispatch(new TaskTAttemptEvent(taID,
TaskEventType.T_ATTEMPT_SUCCEEDED));
this.cachedKillEvent = killEvent;
return;
}
}
} else if (event instanceof TaskEvent) {
TaskEvent taskEvent = (TaskEvent) event;
if (taskEvent.getType() == TaskEventType.T_ATTEMPT_SUCCEEDED
&& this.cachedKillEvent != null) {
// When the TA comes and reports that it is done, send the
// cachedKillEvent
super.dispatch(this.cachedKillEvent);
return;
}
}
super.dispatch(event);
}
};
MRApp app = new MRApp(1, 1, false, this.getClass().getName(), true) {
@Override
public Dispatcher createDispatcher() {
return dispatcher;
}
};
Job job = app.submit(new Configuration());
JobId jobId = app.getJobId();
app.waitForState(job, JobState.RUNNING);
Assert.assertEquals("Num tasks not correct", 2, job.getTasks().size());
Iterator<Task> it = job.getTasks().values().iterator();
Task mapTask = it.next();
Task reduceTask = it.next();
app.waitForState(mapTask, TaskState.RUNNING);
app.waitForState(reduceTask, TaskState.RUNNING);
TaskAttempt mapAttempt = mapTask.getAttempts().values().iterator().next();
app.waitForState(mapAttempt, TaskAttemptState.RUNNING);
TaskAttempt reduceAttempt = reduceTask.getAttempts().values().iterator().next();
app.waitForState(reduceAttempt, TaskAttemptState.RUNNING);
// Finish map
app.getContext().getEventHandler().handle(
new TaskAttemptEvent(
mapAttempt.getID(),
TaskAttemptEventType.TA_DONE));
app.waitForState(mapTask, TaskState.SUCCEEDED);
// Now kill the job
app.getContext().getEventHandler()
.handle(new JobEvent(jobId, JobEventType.JOB_KILL));
app.waitForInternalState((JobImpl)job, JobStateInternal.KILLED);
}
示例2: testKillTaskWait
import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptEvent; //导入方法依赖的package包/类
@Test
public void testKillTaskWait() throws Exception {
final Dispatcher dispatcher = new AsyncDispatcher() {
private TaskAttemptEvent cachedKillEvent;
@Override
protected void dispatch(Event event) {
if (event instanceof TaskAttemptEvent) {
TaskAttemptEvent killEvent = (TaskAttemptEvent) event;
if (killEvent.getType() == TaskAttemptEventType.TA_KILL) {
TaskAttemptId taID = killEvent.getTaskAttemptID();
if (taID.getTaskId().getTaskType() == TaskType.REDUCE
&& taID.getTaskId().getId() == 0 && taID.getId() == 0) {
// Task is asking the reduce TA to kill itself. 'Create' a race
// condition. Make the task succeed and then inform the task that
// TA has succeeded. Once Task gets the TA succeeded event at
// KILL_WAIT, then relay the actual kill signal to TA
super.dispatch(new TaskAttemptEvent(taID,
TaskAttemptEventType.TA_DONE));
super.dispatch(new TaskAttemptEvent(taID,
TaskAttemptEventType.TA_CONTAINER_COMPLETED));
super.dispatch(new TaskTAttemptEvent(taID,
TaskEventType.T_ATTEMPT_SUCCEEDED));
this.cachedKillEvent = killEvent;
return;
}
}
} else if (event instanceof TaskEvent) {
TaskEvent taskEvent = (TaskEvent) event;
if (taskEvent.getType() == TaskEventType.T_ATTEMPT_SUCCEEDED
&& this.cachedKillEvent != null) {
// When the TA comes and reports that it is done, send the
// cachedKillEvent
super.dispatch(this.cachedKillEvent);
return;
}
}
super.dispatch(event);
}
};
MRApp app = new MRApp(1, 1, false, this.getClass().getName(), true) {
@Override
public Dispatcher createDispatcher() {
return dispatcher;
}
};
Job job = app.submit(new Configuration());
JobId jobId = app.getJobId();
app.waitForState(job, JobState.RUNNING);
Assert.assertEquals("Num tasks not correct", 2, job.getTasks().size());
Iterator<Task> it = job.getTasks().values().iterator();
Task mapTask = it.next();
Task reduceTask = it.next();
app.waitForState(mapTask, TaskState.RUNNING);
app.waitForState(reduceTask, TaskState.RUNNING);
TaskAttempt mapAttempt = mapTask.getAttempts().values().iterator().next();
app.waitForState(mapAttempt, TaskAttemptState.RUNNING);
TaskAttempt reduceAttempt = reduceTask.getAttempts().values().iterator().next();
app.waitForState(reduceAttempt, TaskAttemptState.RUNNING);
// Finish map
app.getContext().getEventHandler().handle(
new TaskAttemptEvent(
mapAttempt.getID(),
TaskAttemptEventType.TA_DONE));
app.waitForState(mapTask, TaskState.SUCCEEDED);
// Now kill the job
app.getContext().getEventHandler()
.handle(new JobEvent(jobId, JobEventType.JOB_KILL));
app.waitForInternalState((JobImpl) job, JobStateInternal.KILLED);
}