Package org.apache.tez.dag.app.dag

Examples of org.apache.tez.dag.app.dag.TaskAttempt$TaskAttemptStatus

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        eventHandler.handle(new TaskAttemptEventKillRequest(taskAttemptID
            , "Task not running. Bad attempt."));
        return false;
      }
      if (commitAttempt == null) {
        TaskAttempt ta = getAttempt(taskAttemptID);
        if (ta == null) {
          throw new TezUncheckedException("Unknown task for commit: " + taskAttemptID);
        }
        // Its ok to get a non-locked state snapshot since we handle changes of
        // state in the task attempt. Dont want to deadlock here.
        TaskAttemptState taState = ta.getStateNoLock();
        if (taState == TaskAttemptState.RUNNING) {
          commitAttempt = taskAttemptID;
          LOG.info(taskAttemptID + " given a go for committing the task output.");
          return true;
        } else {
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    }
  }

  // This is always called in the Write Lock
  private void addAndScheduleAttempt() {
    TaskAttempt attempt = createAttempt(attempts.size());
    if (LOG.isDebugEnabled()) {
      LOG.debug("Created attempt " + attempt.getID());
    }
    switch (attempts.size()) {
      case 0:
        attempts = Collections.singletonMap(attempt.getID(), attempt);
        break;

      case 1:
        Map<TezTaskAttemptID, TaskAttempt> newAttempts
            = new LinkedHashMap<TezTaskAttemptID, TaskAttempt>(maxAttempts);
        newAttempts.putAll(attempts);
        attempts = newAttempts;
        attempts.put(attempt.getID(), attempt);
        break;

      default:
        attempts.put(attempt.getID(), attempt);
        break;
    }

    // TODO: Recovery
    /*
 
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        task.internalError(event.getType());
      }

      TaskEventTAUpdate castEvent = (TaskEventTAUpdate) event;
      TezTaskAttemptID failedAttemptId = castEvent.getTaskAttemptID();
      TaskAttempt failedAttempt = task.getAttempt(failedAttemptId);
      ContainerId containerId = failedAttempt.getAssignedContainerID();
      if (containerId != null) {
        AMContainer amContainer = task.appContext.getAllContainers().
            get(containerId);
        if (amContainer != null) {
          // inform the node about failure
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        return; // event not relevant any more
      }
      Task task =
          dag.getVertex(event.getTaskAttemptID().getTaskID().getVertexID()).
              getTask(event.getTaskAttemptID().getTaskID());
      TaskAttempt attempt = task.getAttempt(event.getTaskAttemptID());
      ((EventHandler<TaskAttemptEvent>) attempt).handle(event);
    }
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          // need to be stopped.
        }
      }
    }*/

    TaskAttempt attempt = event.getAttempt();
    boolean wasContainerAllocated = taskScheduler.deallocateTask(attempt, false);
    // use stored value of container id in case the scheduler has removed this
    // assignment because the task has been deallocated earlier.
    // retroactive case
    ContainerId attemptContainerId = attempt.getAssignedContainerID();

    if(!wasContainerAllocated) {
      LOG.info("Task: " + attempt.getID() +
          " has no container assignment in the scheduler");
      if (attemptContainerId != null) {
        LOG.error("No container allocated to task: " + attempt.getID()
            + " according to scheduler. Task reported container id: "
            + attemptContainerId);
      }
    }

    if (attemptContainerId != null) {
      // TODO either ways send the necessary events
      // Ask the container to stop.
      sendEvent(new AMContainerEventStopRequest(attemptContainerId));
      // Inform the Node - the task has asked to be STOPPED / has already
      // stopped.
      sendEvent(new AMNodeEventTaskAttemptEnded(appContext.getAllContainers().
          get(attemptContainerId).getContainer().getNodeId(), attemptContainerId,
          attempt.getID(), event.getState() == TaskAttemptState.FAILED));
    }
  }
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    } else {
      LOG.warn("Received TaskAttemptSucceededEvent for unmapped TaskAttempt: "
          + event.getAttemptID() + ". Full event: " + event);
    }*/

    TaskAttempt attempt = event.getAttempt();
    ContainerId usedContainerId = event.getUsedContainerId();

    // This could be null if a task fails / is killed before a container is
    // assigned to it.
    if (event.getUsedContainerId() != null) {
      sendEvent(new AMContainerEventTASucceeded(usedContainerId,
          event.getAttemptID()));
      sendEvent(new AMNodeEventTaskAttemptSucceeded(appContext.getAllContainers().
          get(usedContainerId).getContainer().getNodeId(), usedContainerId,
          event.getAttemptID()));
    }

    boolean wasContainerAllocated = taskScheduler.deallocateTask(attempt, true);
    if (!wasContainerAllocated) {
      LOG.error("De-allocated successful task: " + attempt.getID()
          + ", but TaskScheduler reported no container assigned to task");
    }
  }
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     */
    // TODO resource adjustment needs to move into dag
    /*Resource mapResourceReqt = maybeComputeNormalizedRequestForType(event,
        TaskType.MAP, mapResourceReqt);
    event.getCapability().setMemory(mapResourceReqt);*/
    TaskAttempt taskAttempt = event.getTaskAttempt();
    taskScheduler.allocateTask(taskAttempt,
                               event.getCapability(),
                               event.getHosts(),
                               event.getRacks(),
                               event.getPriority(),
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          .getNodeId(), container.getId()));
    }

    AMSchedulerEventTALaunchRequest event =
                         (AMSchedulerEventTALaunchRequest) appCookie;
    TaskAttempt taskAttempt = event.getTaskAttempt();
    // TODO - perhaps check if the task still needs this container
    // because the deallocateTask downcall may have raced with the
    // taskAllocated() upcall
    assert task.equals(taskAttempt);
    if (appContext.getAllContainers().get(containerId).getState() == AMContainerState.ALLOCATED) {
      sendEvent(new AMContainerEventLaunchRequest(containerId, taskAttempt.getVertexID(),
          event.getContainerContext()));
    }
    sendEvent(new DAGEventSchedulerUpdateTAAssigned(taskAttempt, container));
    sendEvent(new AMContainerEventAssignTA(containerId, taskAttempt.getID(),
        event.getRemoteTaskSpec(), event.getContainerContext().getLocalResources(), event
            .getContainerContext().getCredentials()));
  }
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Related Classes of org.apache.tez.dag.app.dag.TaskAttempt$TaskAttemptStatus

  • org.apache.tez.common.counters.TezCounters
  • org.apache.tez.dag.app.dag.impl.DAGSchedulerMRR
  • org.apache.tez.dag.app.dag.impl.DAGSchedulerNaturalOrder
  • org.apache.tez.dag.app.dag.impl.TaskImpl
  • org.apache.tez.dag.app.dag.impl.TaskImpl$TaskRetroactiveFailureTransition
  • org.apache.tez.dag.app.dag.impl.TestDAGImpl
  • org.apache.tez.dag.app.dag.impl.TestDAGScheduler
  • org.apache.tez.dag.app.dag.impl.VertexManager$VertexManagerPluginContextImpl
  • org.apache.tez.dag.app.DAGAppMaster$TaskAttemptEventDispatcher
  • org.apache.tez.dag.app.rm.TaskSchedulerEventHandler
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