Package org.apache.hadoop.mapreduce.v2.app.recover

Examples of org.apache.hadoop.mapreduce.v2.app.recover.RecoveryService$InterceptingEventHandler

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  /**
   * Create the recovery service.
   * @return an instance of the recovery service.
   */
  protected Recovery createRecoveryService(AppContext appContext) {
    return new RecoveryService(appContext.getApplicationAttemptId(),
        appContext.getClock(), getCommitter(), isNewApiCommitter());
  }
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    boolean recoverySupportedByCommitter = committer.isRecoverySupported();
    if (recoveryEnabled && recoverySupportedByCommitter
        && appAttemptID.getAttemptId() > 1) {
      LOG.info("Recovery is enabled. "
          + "Will try to recover from previous life on best effort basis.");
      recoveryServ = new RecoveryService(appAttemptID, clock,
          committer);
      addIfService(recoveryServ);
      dispatcher = recoveryServ.getDispatcher();
      clock = recoveryServ.getClock();
      inRecovery = true;
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  /**
   * Create the recovery service.
   * @return an instance of the recovery service.
   */
  protected Recovery createRecoveryService(AppContext appContext) {
    return new RecoveryService(appContext.getApplicationAttemptId(),
        appContext.getClock(), getCommitter());
  }
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            ((TaskAttemptKillEvent) event).getMessage());
      }

      //send the deallocate event to ContainerAllocator
      taskAttempt.eventHandler.handle(
          new ContainerAllocatorEvent(taskAttempt.attemptId,
          ContainerAllocator.EventType.CONTAINER_DEALLOCATE));

      // send event to speculator that we withdraw our container needs, if
      //  we're transitioning out of UNASSIGNED
      if (withdrawsContainerRequest) {
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        taskAttempt.eventHandler.handle(
            ContainerRequestEvent.createContainerRequestEventForFailedContainer(
                taskAttempt.attemptId,
                taskAttempt.resourceCapability));
      } else {
        taskAttempt.eventHandler.handle(new ContainerRequestEvent(
            taskAttempt.attemptId, taskAttempt.resourceCapability,
            taskAttempt.dataLocalHosts.toArray(
                new String[taskAttempt.dataLocalHosts.size()]),
            taskAttempt.dataLocalRacks.toArray(
                new String[taskAttempt.dataLocalRacks.size()])));
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    @Override
    public void transition(TaskAttemptImpl taskAttempt,
        TaskAttemptEvent event) {
      // Tell any speculator that we're requesting a container
      taskAttempt.eventHandler.handle
          (new SpeculatorEvent(taskAttempt.getID().getTaskId(), +1));
      //request for container
      if (rescheduled) {
        taskAttempt.eventHandler.handle(
            ContainerRequestEvent.createContainerRequestEventForFailedContainer(
                taskAttempt.attemptId,
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        .handle(new ContainerRemoteLaunchEvent(taskAttempt.attemptId,
          launchContext, container, taskAttempt.remoteTask));

      // send event to speculator that our container needs are satisfied
      taskAttempt.eventHandler.handle
          (new SpeculatorEvent(taskAttempt.getID().getTaskId(), -1));
    }
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      // send event to speculator that we withdraw our container needs, if
      //  we're transitioning out of UNASSIGNED
      if (withdrawsContainerRequest) {
        taskAttempt.eventHandler.handle
            (new SpeculatorEvent(taskAttempt.getID().getTaskId(), -1));
      }

      switch(finalState) {
        case FAILED:
          taskAttempt.eventHandler.handle(new TaskTAttemptEvent(
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          NetUtils.createSocketAddr(taskAttempt.container.getNodeHttpAddress());
      taskAttempt.trackerName = nodeHttpInetAddr.getHostName();
      taskAttempt.httpPort = nodeHttpInetAddr.getPort();
      taskAttempt.sendLaunchedEvents();
      taskAttempt.eventHandler.handle
          (new SpeculatorEvent
              (taskAttempt.attemptId, true, taskAttempt.clock.getTime()));
      //make remoteTask reference as null as it is no more needed
      //and free up the memory
      taskAttempt.remoteTask = null;
     
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      taskAttempt.logAttemptFinishedEvent(TaskAttemptStateInternal.SUCCEEDED);
      taskAttempt.eventHandler.handle(new TaskTAttemptEvent(
          taskAttempt.attemptId,
          TaskEventType.T_ATTEMPT_SUCCEEDED));
      taskAttempt.eventHandler.handle
      (new SpeculatorEvent
          (taskAttempt.reportedStatus, taskAttempt.clock.getTime()));
   }
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Related Classes of org.apache.hadoop.mapreduce.v2.app.recover.RecoveryService$InterceptingEventHandler

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  • org.apache.hadoop.fs.permission.FsPermission
  • org.apache.hadoop.mapred.JobConf
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