Package org.apache.hadoop.mapreduce.v2.app.job.event

Examples of org.apache.hadoop.mapreduce.v2.app.job.event.TaskEvent

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    Task task = it.next();
    app.waitForState(task, TaskState.RUNNING);

    //send an invalid event on task at current state
    app.getContext().getEventHandler().handle(
        new TaskEvent(
            task.getID(), TaskEventType.T_SCHEDULE));

    //this must lead to job error
    app.waitForState(job, JobState.ERROR);
  }
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    Task task1 = it.next();
    Task task2 = it.next();
   
    //send the kill signal to the first Task
    app.getContext().getEventHandler().handle(
          new TaskEvent(task1.getID(), TaskEventType.T_KILL));
   
    //unblock Task
    latch.countDown();
   
    //wait and validate for Job to become SUCCEEDED
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  //Add attempt to a given Task.
  protected void addSpeculativeAttempt(TaskId taskID) {
    LOG.info
        ("DefaultSpeculator.addSpeculativeAttempt -- we are speculating " + taskID);
    eventHandler.handle(new TaskEvent(taskID, TaskEventType.T_ADD_SPEC_ATTEMPT));
    mayHaveSpeculated.add(taskID);
  }
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        actualHandler.handle(event);
        return;
      }

      else if (event.getType() == TaskEventType.T_SCHEDULE) {
        TaskEvent taskEvent = (TaskEvent) event;
        // delay the scheduling of new tasks till previous ones are recovered
        if (completedTasks.get(taskEvent.getTaskID()) == null) {
          LOG.debug("Adding to pending task events "
              + taskEvent.getTaskID());
          pendingTaskScheduleEvents.add(taskEvent);
          return;
        }
      }
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      TaskId taskId = request.getTaskId();
      String message = "Kill task received from client " + taskId;
      LOG.info(message);
      verifyAndGetTask(taskId, true);
      appContext.getEventHandler().handle(
          new TaskEvent(taskId, TaskEventType.T_KILL));
      KillTaskResponse response =
        recordFactory.newRecordInstance(KillTaskResponse.class);
      return response;
    }
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    taskId.setTaskType(mockTask.getType());   
    return taskId;
  }
 
  private void scheduleTaskAttempt(TaskId taskId) {
    mockTask.handle(new TaskEvent(taskId,
        TaskEventType.T_SCHEDULE));
    assertTaskScheduledState();
  }
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        TaskEventType.T_SCHEDULE));
    assertTaskScheduledState();
  }
 
  private void killTask(TaskId taskId) {
    mockTask.handle(new TaskEvent(taskId,
        TaskEventType.T_KILL));
    assertTaskKillWaitState();
  }
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  //Add attempt to a given Task.
  protected void addSpeculativeAttempt(TaskId taskID) {
    LOG.info
        ("DefaultSpeculator.addSpeculativeAttempt -- we are speculating " + taskID);
    eventHandler.handle(new TaskEvent(taskID, TaskEventType.T_ADD_SPEC_ATTEMPT));
    mayHaveSpeculated.add(taskID);
  }
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      TaskId taskId = request.getTaskId();
      String message = "Kill task received from client " + taskId;
      LOG.info(message);
      verifyAndGetTask(taskId, true);
      appContext.getEventHandler().handle(
          new TaskEvent(taskId, TaskEventType.T_KILL));
      KillTaskResponse response =
        recordFactory.newRecordInstance(KillTaskResponse.class);
      return response;
    }
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    Task task = it.next();
    app.waitForState(task, TaskState.RUNNING);

    //send an invalid event on task at current state
    app.getContext().getEventHandler().handle(
        new TaskEvent(
            task.getID(), TaskEventType.T_SCHEDULE));

    //this must lead to job error
    app.waitForState(job, JobState.ERROR);
  }
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  • org.apache.hadoop.mapred.JobConf
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