Java TaskAttemptUnsuccessfulCompletionEvent类代码示例

import org.apache.hadoop.mapreduce.jobhistory.TaskAttemptUnsuccessfulCompletionEvent; //导入依赖的package包/类
private static
    TaskAttemptUnsuccessfulCompletionEvent
    createTaskAttemptUnsuccessfulCompletionEvent(TaskAttemptImpl taskAttempt,
        TaskAttemptStateInternal attemptState) {
  TaskAttemptUnsuccessfulCompletionEvent tauce =
      new TaskAttemptUnsuccessfulCompletionEvent(
          TypeConverter.fromYarn(taskAttempt.attemptId),
          TypeConverter.fromYarn(taskAttempt.attemptId.getTaskId()
              .getTaskType()), attemptState.toString(),
          taskAttempt.finishTime,
          taskAttempt.container == null ? "UNKNOWN"
              : taskAttempt.container.getNodeId().getHost(),
          taskAttempt.container == null ? -1 
              : taskAttempt.container.getNodeId().getPort(),    
          taskAttempt.nodeRackName == null ? "UNKNOWN" 
              : taskAttempt.nodeRackName,
          StringUtils.join(
              LINE_SEPARATOR, taskAttempt.getDiagnostics()),
              taskAttempt.getCounters(), taskAttempt
              .getProgressSplitBlock().burst());
  return tauce;
}
 

import org.apache.hadoop.mapreduce.jobhistory.TaskAttemptUnsuccessfulCompletionEvent; //导入依赖的package包/类
@SuppressWarnings("unchecked")
@Override
public void transition(TaskAttemptImpl taskAttempt, TaskAttemptEvent event) {
  // set the finish time
  taskAttempt.setFinishTime();
  
  if (taskAttempt.getLaunchTime() != 0) {
    taskAttempt.eventHandler
        .handle(createJobCounterUpdateEventTAFailed(taskAttempt, false));
    TaskAttemptUnsuccessfulCompletionEvent tauce =
        createTaskAttemptUnsuccessfulCompletionEvent(taskAttempt,
            TaskAttemptStateInternal.FAILED);
    taskAttempt.eventHandler.handle(new JobHistoryEvent(
        taskAttempt.attemptId.getTaskId().getJobId(), tauce));
    // taskAttempt.logAttemptFinishedEvent(TaskAttemptStateInternal.FAILED); Not
    // handling failed map/reduce events.
  }else {
    LOG.debug("Not generating HistoryFinish event since start event not " +
        "generated for taskAttempt: " + taskAttempt.getID());
  }
  taskAttempt.eventHandler.handle(new TaskTAttemptEvent(
      taskAttempt.attemptId, TaskEventType.T_ATTEMPT_FAILED));
}
 

import org.apache.hadoop.mapreduce.jobhistory.TaskAttemptUnsuccessfulCompletionEvent; //导入依赖的package包/类
/**
 * Process one {@link HistoryEvent}
 * 
 * @param event
 *          The {@link HistoryEvent} to be processed.
 */
public void process(HistoryEvent event) {
  if (event instanceof TaskAttemptFinishedEvent) {
    processTaskAttemptFinishedEvent((TaskAttemptFinishedEvent) event);
  } else if (event instanceof TaskAttemptUnsuccessfulCompletionEvent) {
    processTaskAttemptUnsuccessfulCompletionEvent((TaskAttemptUnsuccessfulCompletionEvent) event);
  } else if (event instanceof TaskStartedEvent) {
    processTaskStartedEvent((TaskStartedEvent) event);
  } else if (event instanceof MapAttemptFinishedEvent) {
    processMapAttemptFinishedEvent((MapAttemptFinishedEvent) event);
  } else if (event instanceof ReduceAttemptFinishedEvent) {
    processReduceAttemptFinishedEvent((ReduceAttemptFinishedEvent) event);
  }

  // I do NOT expect these if statements to be exhaustive.
}
 

import org.apache.hadoop.mapreduce.jobhistory.TaskAttemptUnsuccessfulCompletionEvent; //导入依赖的package包/类
HistoryEvent maybeEmitEvent(ParsedLine line, String taskAttemptIDName,
    HistoryEventEmitter thatg) {
  if (taskAttemptIDName == null) {
    return null;
  }

  TaskAttemptID taskAttemptID = TaskAttemptID.forName(taskAttemptIDName);

  String finishTime = line.get("FINISH_TIME");
  String status = line.get("TASK_STATUS");

  if (finishTime != null && status != null
      && !status.equalsIgnoreCase("success")) {
    String hostName = line.get("HOSTNAME");
    String error = line.get("ERROR");

    TaskAttempt20LineEventEmitter that =
        (TaskAttempt20LineEventEmitter) thatg;

    ParsedHost pHost = ParsedHost.parse(hostName);
    String rackName = null;
    
    // Earlier versions of MR logged on hostnames (without rackname) for
    // unsuccessful attempts
    if (pHost != null) {
      rackName = pHost.getRackName();
      hostName = pHost.getNodeName();
    }
    return new TaskAttemptUnsuccessfulCompletionEvent
      (taskAttemptID,
       that.originalTaskType, status, Long.parseLong(finishTime),
       hostName, -1, rackName, error, null);
  }

  return null;
}
 

import org.apache.hadoop.mapreduce.jobhistory.TaskAttemptUnsuccessfulCompletionEvent; //导入依赖的package包/类
@SuppressWarnings("unchecked")
private static void notifyTaskAttemptFailed(TaskAttemptImpl taskAttempt) {
  if (taskAttempt.getLaunchTime() == 0) {
    sendJHStartEventForAssignedFailTask(taskAttempt);
  }
  // set the finish time
  taskAttempt.setFinishTime();
  taskAttempt.eventHandler
      .handle(createJobCounterUpdateEventTAFailed(taskAttempt, false));
  TaskAttemptUnsuccessfulCompletionEvent tauce =
      createTaskAttemptUnsuccessfulCompletionEvent(taskAttempt,
          TaskAttemptStateInternal.FAILED);
  taskAttempt.eventHandler.handle(new JobHistoryEvent(
      taskAttempt.attemptId.getTaskId().getJobId(), tauce));

  taskAttempt.eventHandler.handle(new TaskTAttemptEvent(
      taskAttempt.attemptId, TaskEventType.T_ATTEMPT_FAILED));

}
 

import org.apache.hadoop.mapreduce.jobhistory.TaskAttemptUnsuccessfulCompletionEvent; //导入依赖的package包/类
private static
    TaskAttemptUnsuccessfulCompletionEvent
    createTaskAttemptUnsuccessfulCompletionEvent(TaskAttemptImpl taskAttempt,
        TaskAttemptStateInternal attemptState) {
  TaskAttemptUnsuccessfulCompletionEvent tauce =
      new TaskAttemptUnsuccessfulCompletionEvent(
          TypeConverter.fromYarn(taskAttempt.attemptId),
          TypeConverter.fromYarn(taskAttempt.attemptId.getTaskId()
              .getTaskType()), attemptState.toString(),
          taskAttempt.finishTime,
          taskAttempt.container == null ? "UNKNOWN"
              : taskAttempt.container.getNodeId().getHost(),
          taskAttempt.container == null ? -1 
              : taskAttempt.container.getNodeId().getPort(),    
          taskAttempt.nodeRackName == null ? "UNKNOWN" 
              : taskAttempt.nodeRackName,
          StringUtils.join(
              LINE_SEPARATOR, taskAttempt.getDiagnostics()),
              taskAttempt.getCounters(), taskAttempt
              .getProgressSplitBlock().burst()
             );
  return tauce;
}
 

import org.apache.hadoop.mapreduce.jobhistory.TaskAttemptUnsuccessfulCompletionEvent; //导入依赖的package包/类
@SuppressWarnings("unchecked")
@Override
public void transition(TaskAttemptImpl taskAttempt,
    TaskAttemptEvent event) {
  if (taskAttempt.getLaunchTime() == 0) {
    sendJHStartEventForAssignedFailTask(taskAttempt);
  }
  //set the finish time
  taskAttempt.setFinishTime();

  taskAttempt.eventHandler
      .handle(createJobCounterUpdateEventTAKilled(taskAttempt, false));
  TaskAttemptUnsuccessfulCompletionEvent tauce =
      createTaskAttemptUnsuccessfulCompletionEvent(taskAttempt,
          TaskAttemptStateInternal.KILLED);
  taskAttempt.eventHandler.handle(new JobHistoryEvent(
      taskAttempt.attemptId.getTaskId().getJobId(), tauce));

  if (event instanceof TaskAttemptKillEvent) {
    taskAttempt.addDiagnosticInfo(
        ((TaskAttemptKillEvent) event).getMessage());
  }

  taskAttempt.eventHandler.handle(new TaskTAttemptKilledEvent(
      taskAttempt.attemptId, taskAttempt.getRescheduleNextAttempt()));
}