Java Code Examples for org.apache.hadoop.mapreduce.v2.api.records.TaskId#getJobId()

The following examples show how to use org.apache.hadoop.mapreduce.v2.api.records.TaskId#getJobId() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: DefaultSpeculator.java From hadoop with Apache License 2.0

6 votes

private AtomicInteger containerNeed(TaskId taskID) {
  JobId jobID = taskID.getJobId();
  TaskType taskType = taskID.getTaskType();

  ConcurrentMap<JobId, AtomicInteger> relevantMap
      = taskType == TaskType.MAP ? mapContainerNeeds : reduceContainerNeeds;

  AtomicInteger result = relevantMap.get(jobID);

  if (result == null) {
    relevantMap.putIfAbsent(jobID, new AtomicInteger(0));
    result = relevantMap.get(jobID);
  }

  return result;
}

Example 2

Source File: StartEndTimesBase.java From hadoop with Apache License 2.0

6 votes

protected DataStatistics dataStatisticsForTask(TaskId taskID) {
  JobId jobID = taskID.getJobId();
  Job job = context.getJob(jobID);

  if (job == null) {
    return null;
  }

  Task task = job.getTask(taskID);

  if (task == null) {
    return null;
  }

  return task.getType() == TaskType.MAP
          ? mapperStatistics.get(job)
          : task.getType() == TaskType.REDUCE
              ? reducerStatistics.get(job)
              : null;
}

Example 3

Source File: LegacyTaskRuntimeEstimator.java From big-c with Apache License 2.0

6 votes

private long storedPerAttemptValue
     (Map<TaskAttempt, AtomicLong> data, TaskAttemptId attemptID) {
  TaskId taskID = attemptID.getTaskId();
  JobId jobID = taskID.getJobId();
  Job job = context.getJob(jobID);

  Task task = job.getTask(taskID);

  if (task == null) {
    return -1L;
  }

  TaskAttempt taskAttempt = task.getAttempt(attemptID);

  if (taskAttempt == null) {
    return -1L;
  }

  AtomicLong estimate = data.get(taskAttempt);

  return estimate == null ? -1L : estimate.get();

}

Example 4

Source File: StartEndTimesBase.java From big-c with Apache License 2.0

6 votes

protected DataStatistics dataStatisticsForTask(TaskId taskID) {
  JobId jobID = taskID.getJobId();
  Job job = context.getJob(jobID);

  if (job == null) {
    return null;
  }

  Task task = job.getTask(taskID);

  if (task == null) {
    return null;
  }

  return task.getType() == TaskType.MAP
          ? mapperStatistics.get(job)
          : task.getType() == TaskType.REDUCE
              ? reducerStatistics.get(job)
              : null;
}

Example 5

Source File: LegacyTaskRuntimeEstimator.java From hadoop with Apache License 2.0

6 votes

private long storedPerAttemptValue
     (Map<TaskAttempt, AtomicLong> data, TaskAttemptId attemptID) {
  TaskId taskID = attemptID.getTaskId();
  JobId jobID = taskID.getJobId();
  Job job = context.getJob(jobID);

  Task task = job.getTask(taskID);

  if (task == null) {
    return -1L;
  }

  TaskAttempt taskAttempt = task.getAttempt(attemptID);

  if (taskAttempt == null) {
    return -1L;
  }

  AtomicLong estimate = data.get(taskAttempt);

  return estimate == null ? -1L : estimate.get();

}

Example 6

Source File: DefaultSpeculator.java From big-c with Apache License 2.0

6 votes

private AtomicInteger containerNeed(TaskId taskID) {
  JobId jobID = taskID.getJobId();
  TaskType taskType = taskID.getTaskType();

  ConcurrentMap<JobId, AtomicInteger> relevantMap
      = taskType == TaskType.MAP ? mapContainerNeeds : reduceContainerNeeds;

  AtomicInteger result = relevantMap.get(jobID);

  if (result == null) {
    relevantMap.putIfAbsent(jobID, new AtomicInteger(0));
    result = relevantMap.get(jobID);
  }

  return result;
}

Example 7

Source File: TaskAttemptImpl.java From big-c with Apache License 2.0

5 votes

private static JobCounterUpdateEvent createJobCounterUpdateEventTASucceeded(
    TaskAttemptImpl taskAttempt) {
  TaskId taskId = taskAttempt.attemptId.getTaskId();
  JobCounterUpdateEvent jce = new JobCounterUpdateEvent(taskId.getJobId());
  updateMillisCounters(jce, taskAttempt);
  return jce;
}

Example 8

Source File: StartEndTimesBase.java From big-c with Apache License 2.0

5 votes

@Override
public long thresholdRuntime(TaskId taskID) {
  JobId jobID = taskID.getJobId();
  Job job = context.getJob(jobID);

  TaskType type = taskID.getTaskType();

  DataStatistics statistics
      = dataStatisticsForTask(taskID);

  int completedTasksOfType
      = type == TaskType.MAP
          ? job.getCompletedMaps() : job.getCompletedReduces();

  int totalTasksOfType
      = type == TaskType.MAP
          ? job.getTotalMaps() : job.getTotalReduces();

  if (completedTasksOfType < MINIMUM_COMPLETE_NUMBER_TO_SPECULATE
      || (((float)completedTasksOfType) / totalTasksOfType)
            < MINIMUM_COMPLETE_PROPORTION_TO_SPECULATE ) {
    return Long.MAX_VALUE;
  }

  long result =  statistics == null
      ? Long.MAX_VALUE
      : (long)statistics.outlier(slowTaskRelativeTresholds.get(job));
  return result;
}

Example 9

Source File: TaskSpeculationPredicate.java From big-c with Apache License 2.0

5 votes

boolean canSpeculate(AppContext context, TaskId taskID) {
  // This class rejects speculating any task that already has speculations,
  //  or isn't running.
  //  Subclasses should call TaskSpeculationPredicate.canSpeculate(...) , but
  //  can be even more restrictive.
  JobId jobID = taskID.getJobId();
  Job job = context.getJob(jobID);
  Task task = job.getTask(taskID);
  return task.getAttempts().size() == 1;
}

Example 10

Source File: TaskAttemptImpl.java From hadoop with Apache License 2.0

5 votes

private static JobCounterUpdateEvent createJobCounterUpdateEventTASucceeded(
    TaskAttemptImpl taskAttempt) {
  TaskId taskId = taskAttempt.attemptId.getTaskId();
  JobCounterUpdateEvent jce = new JobCounterUpdateEvent(taskId.getJobId());
  updateMillisCounters(jce, taskAttempt);
  return jce;
}

Example 11

Source File: StartEndTimesBase.java From hadoop with Apache License 2.0

5 votes

@Override
public long thresholdRuntime(TaskId taskID) {
  JobId jobID = taskID.getJobId();
  Job job = context.getJob(jobID);

  TaskType type = taskID.getTaskType();

  DataStatistics statistics
      = dataStatisticsForTask(taskID);

  int completedTasksOfType
      = type == TaskType.MAP
          ? job.getCompletedMaps() : job.getCompletedReduces();

  int totalTasksOfType
      = type == TaskType.MAP
          ? job.getTotalMaps() : job.getTotalReduces();

  if (completedTasksOfType < MINIMUM_COMPLETE_NUMBER_TO_SPECULATE
      || (((float)completedTasksOfType) / totalTasksOfType)
            < MINIMUM_COMPLETE_PROPORTION_TO_SPECULATE ) {
    return Long.MAX_VALUE;
  }

  long result =  statistics == null
      ? Long.MAX_VALUE
      : (long)statistics.outlier(slowTaskRelativeTresholds.get(job));
  return result;
}

Example 12

Source File: TaskSpeculationPredicate.java From hadoop with Apache License 2.0

5 votes

boolean canSpeculate(AppContext context, TaskId taskID) {
  // This class rejects speculating any task that already has speculations,
  //  or isn't running.
  //  Subclasses should call TaskSpeculationPredicate.canSpeculate(...) , but
  //  can be even more restrictive.
  JobId jobID = taskID.getJobId();
  Job job = context.getJob(jobID);
  Task task = job.getTask(taskID);
  return task.getAttempts().size() == 1;
}

Example 13

Source File: JobTaskEvent.java From hadoop with Apache License 2.0

4 votes

public JobTaskEvent(TaskId taskID, TaskState taskState) {
  super(taskID.getJobId(), JobEventType.JOB_TASK_COMPLETED);
  this.taskID = taskID;
  this.taskState = taskState;
}

Example 14

Source File: JobMapTaskRescheduledEvent.java From hadoop with Apache License 2.0

4 votes

public JobMapTaskRescheduledEvent(TaskId taskID) {
  super(taskID.getJobId(), JobEventType.JOB_MAP_TASK_RESCHEDULED);
  this.taskID = taskID;
}

Example 15

Source File: LegacyTaskRuntimeEstimator.java From hadoop with Apache License 2.0

4 votes

@Override
public void updateAttempt(TaskAttemptStatus status, long timestamp) {
  super.updateAttempt(status, timestamp);
  

  TaskAttemptId attemptID = status.id;
  TaskId taskID = attemptID.getTaskId();
  JobId jobID = taskID.getJobId();
  Job job = context.getJob(jobID);

  if (job == null) {
    return;
  }

  Task task = job.getTask(taskID);

  if (task == null) {
    return;
  }

  TaskAttempt taskAttempt = task.getAttempt(attemptID);

  if (taskAttempt == null) {
    return;
  }

  Long boxedStart = startTimes.get(attemptID);
  long start = boxedStart == null ? Long.MIN_VALUE : boxedStart;

  // We need to do two things.
  //  1: If this is a completion, we accumulate statistics in the superclass
  //  2: If this is not a completion, we learn more about it.

  // This is not a completion, but we're cooking.
  //
  if (taskAttempt.getState() == TaskAttemptState.RUNNING) {
    // See if this task is already in the registry
    AtomicLong estimateContainer = attemptRuntimeEstimates.get(taskAttempt);
    AtomicLong estimateVarianceContainer
        = attemptRuntimeEstimateVariances.get(taskAttempt);

    if (estimateContainer == null) {
      if (attemptRuntimeEstimates.get(taskAttempt) == null) {
        attemptRuntimeEstimates.put(taskAttempt, new AtomicLong());

        estimateContainer = attemptRuntimeEstimates.get(taskAttempt);
      }
    }

    if (estimateVarianceContainer == null) {
      attemptRuntimeEstimateVariances.putIfAbsent(taskAttempt, new AtomicLong());
      estimateVarianceContainer = attemptRuntimeEstimateVariances.get(taskAttempt);
    }


    long estimate = -1;
    long varianceEstimate = -1;

    // This code assumes that we'll never consider starting a third
    //  speculative task attempt if two are already running for this task
    if (start > 0 && timestamp > start) {
      estimate = (long) ((timestamp - start) / Math.max(0.0001, status.progress));
      varianceEstimate = (long) (estimate * status.progress / 10);
    }
    if (estimateContainer != null) {
      estimateContainer.set(estimate);
    }
    if (estimateVarianceContainer != null) {
      estimateVarianceContainer.set(varianceEstimate);
    }
  }
}

Example 16

Source File: StartEndTimesBase.java From hadoop with Apache License 2.0

4 votes

@Override
public void updateAttempt(TaskAttemptStatus status, long timestamp) {

  TaskAttemptId attemptID = status.id;
  TaskId taskID = attemptID.getTaskId();
  JobId jobID = taskID.getJobId();
  Job job = context.getJob(jobID);

  if (job == null) {
    return;
  }

  Task task = job.getTask(taskID);

  if (task == null) {
    return;
  }

  Long boxedStart = startTimes.get(attemptID);
  long start = boxedStart == null ? Long.MIN_VALUE : boxedStart;
  
  TaskAttempt taskAttempt = task.getAttempt(attemptID);

  if (taskAttempt.getState() == TaskAttemptState.SUCCEEDED) {
    boolean isNew = false;
    // is this  a new success?
    synchronized (doneTasks) {
      if (!doneTasks.contains(task)) {
        doneTasks.add(task);
        isNew = true;
      }
    }

    // It's a new completion
    // Note that if a task completes twice [because of a previous speculation
    //  and a race, or a success followed by loss of the machine with the
    //  local data] we only count the first one.
    if (isNew) {
      long finish = timestamp;
      if (start > 1L && finish > 1L && start <= finish) {
        long duration = finish - start;

        DataStatistics statistics
        = dataStatisticsForTask(taskID);

        if (statistics != null) {
          statistics.add(duration);
        }
      }
    }
  }
}

Example 17

Source File: StartEndTimesBase.java From big-c with Apache License 2.0

4 votes

@Override
public void updateAttempt(TaskAttemptStatus status, long timestamp) {

  TaskAttemptId attemptID = status.id;
  TaskId taskID = attemptID.getTaskId();
  JobId jobID = taskID.getJobId();
  Job job = context.getJob(jobID);

  if (job == null) {
    return;
  }

  Task task = job.getTask(taskID);

  if (task == null) {
    return;
  }

  Long boxedStart = startTimes.get(attemptID);
  long start = boxedStart == null ? Long.MIN_VALUE : boxedStart;
  
  TaskAttempt taskAttempt = task.getAttempt(attemptID);

  if (taskAttempt.getState() == TaskAttemptState.SUCCEEDED) {
    boolean isNew = false;
    // is this  a new success?
    synchronized (doneTasks) {
      if (!doneTasks.contains(task)) {
        doneTasks.add(task);
        isNew = true;
      }
    }

    // It's a new completion
    // Note that if a task completes twice [because of a previous speculation
    //  and a race, or a success followed by loss of the machine with the
    //  local data] we only count the first one.
    if (isNew) {
      long finish = timestamp;
      if (start > 1L && finish > 1L && start <= finish) {
        long duration = finish - start;

        DataStatistics statistics
        = dataStatisticsForTask(taskID);

        if (statistics != null) {
          statistics.add(duration);
        }
      }
    }
  }
}

Example 18

Source File: LegacyTaskRuntimeEstimator.java From big-c with Apache License 2.0

4 votes

@Override
public void updateAttempt(TaskAttemptStatus status, long timestamp) {
  super.updateAttempt(status, timestamp);
  

  TaskAttemptId attemptID = status.id;
  TaskId taskID = attemptID.getTaskId();
  JobId jobID = taskID.getJobId();
  Job job = context.getJob(jobID);

  if (job == null) {
    return;
  }

  Task task = job.getTask(taskID);

  if (task == null) {
    return;
  }

  TaskAttempt taskAttempt = task.getAttempt(attemptID);

  if (taskAttempt == null) {
    return;
  }

  Long boxedStart = startTimes.get(attemptID);
  long start = boxedStart == null ? Long.MIN_VALUE : boxedStart;

  // We need to do two things.
  //  1: If this is a completion, we accumulate statistics in the superclass
  //  2: If this is not a completion, we learn more about it.

  // This is not a completion, but we're cooking.
  //
  if (taskAttempt.getState() == TaskAttemptState.RUNNING) {
    // See if this task is already in the registry
    AtomicLong estimateContainer = attemptRuntimeEstimates.get(taskAttempt);
    AtomicLong estimateVarianceContainer
        = attemptRuntimeEstimateVariances.get(taskAttempt);

    if (estimateContainer == null) {
      if (attemptRuntimeEstimates.get(taskAttempt) == null) {
        attemptRuntimeEstimates.put(taskAttempt, new AtomicLong());

        estimateContainer = attemptRuntimeEstimates.get(taskAttempt);
      }
    }

    if (estimateVarianceContainer == null) {
      attemptRuntimeEstimateVariances.putIfAbsent(taskAttempt, new AtomicLong());
      estimateVarianceContainer = attemptRuntimeEstimateVariances.get(taskAttempt);
    }


    long estimate = -1;
    long varianceEstimate = -1;

    // This code assumes that we'll never consider starting a third
    //  speculative task attempt if two are already running for this task
    if (start > 0 && timestamp > start) {
      estimate = (long) ((timestamp - start) / Math.max(0.0001, status.progress));
      varianceEstimate = (long) (estimate * status.progress / 10);
    }
    if (estimateContainer != null) {
      estimateContainer.set(estimate);
    }
    if (estimateVarianceContainer != null) {
      estimateVarianceContainer.set(varianceEstimate);
    }
  }
}

Example 19

Source File: JobMapTaskRescheduledEvent.java From big-c with Apache License 2.0

4 votes

public JobMapTaskRescheduledEvent(TaskId taskID) {
  super(taskID.getJobId(), JobEventType.JOB_MAP_TASK_RESCHEDULED);
  this.taskID = taskID;
}

Example 20

Source File: JobTaskEvent.java From big-c with Apache License 2.0

4 votes

public JobTaskEvent(TaskId taskID, TaskState taskState) {
  super(taskID.getJobId(), JobEventType.JOB_TASK_COMPLETED);
  this.taskID = taskID;
  this.taskState = taskState;
}