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

Examples of org.apache.hadoop.mapreduce.v2.app.job.impl.MapTaskImpl

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        recoveredState = TaskAttemptState.KILLED.toString();
        needToClean = true;
      }
    }

    TaskAttemptStateInternal attemptState;
    if (TaskAttemptState.SUCCEEDED.toString().equals(recoveredState)) {
      attemptState = TaskAttemptStateInternal.SUCCEEDED;
      reportedStatus.taskState = TaskAttemptState.SUCCEEDED;
      eventHandler.handle(createJobCounterUpdateEventTASucceeded(this));
      logAttemptFinishedEvent(attemptState);
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  private static class CommitFailedTransition implements
      SingleArcTransition<JobImpl, JobEvent> {
    @Override
    public void transition(JobImpl job, JobEvent event) {
      JobCommitFailedEvent jcfe = (JobCommitFailedEvent)event;
      job.addDiagnostic("Job commit failed: " + jcfe.getMessage());
      job.eventHandler.handle(new CommitterJobAbortEvent(job.jobId,
          job.jobContext,
          org.apache.hadoop.mapreduce.JobStatus.State.FAILED));
    }
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  }

  private static JobCounterUpdateEvent createJobCounterUpdateEventTASucceeded(
      TaskAttemptImpl taskAttempt) {
    TaskId taskId = taskAttempt.attemptId.getTaskId();
    JobCounterUpdateEvent jce = new JobCounterUpdateEvent(taskId.getJobId());
    updateMillisCounters(jce, taskAttempt);
    return jce;
  }
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  }
 
  private static JobCounterUpdateEvent createJobCounterUpdateEventTAFailed(
      TaskAttemptImpl taskAttempt, boolean taskAlreadyCompleted) {
    TaskType taskType = taskAttempt.getID().getTaskId().getTaskType();
    JobCounterUpdateEvent jce = new JobCounterUpdateEvent(taskAttempt.getID().getTaskId().getJobId());
   
    if (taskType == TaskType.MAP) {
      jce.addCounterUpdate(JobCounter.NUM_FAILED_MAPS, 1);
    } else {
      jce.addCounterUpdate(JobCounter.NUM_FAILED_REDUCES, 1);
    }
    if (!taskAlreadyCompleted) {
      updateMillisCounters(jce, taskAttempt);
    }
    return jce;
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  }
 
  private static JobCounterUpdateEvent createJobCounterUpdateEventTAKilled(
      TaskAttemptImpl taskAttempt, boolean taskAlreadyCompleted) {
    TaskType taskType = taskAttempt.getID().getTaskId().getTaskType();
    JobCounterUpdateEvent jce = new JobCounterUpdateEvent(taskAttempt.getID().getTaskId().getJobId());
   
    if (taskType == TaskType.MAP) {
      jce.addCounterUpdate(JobCounter.NUM_KILLED_MAPS, 1);
    } else {
      jce.addCounterUpdate(JobCounter.NUM_KILLED_REDUCES, 1);
    }
    if (!taskAlreadyCompleted) {
      updateMillisCounters(jce, taskAttempt);
    }
    return jce;
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    return tauce;
  }

  @SuppressWarnings("unchecked")
  private void sendLaunchedEvents() {
    JobCounterUpdateEvent jce = new JobCounterUpdateEvent(attemptId.getTaskId()
        .getJobId());
    jce.addCounterUpdate(attemptId.getTaskId().getTaskType() == TaskType.MAP ?
        JobCounter.TOTAL_LAUNCHED_MAPS : JobCounter.TOTAL_LAUNCHED_REDUCES, 1);
    eventHandler.handle(jce);

    LOG.info("TaskAttempt: [" + attemptId
        + "] using containerId: [" + container.getId() + " on NM: ["
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  private static class CounterUpdateTransition implements
      SingleArcTransition<JobImpl, JobEvent> {
    @Override
    public void transition(JobImpl job, JobEvent event) {
      JobCounterUpdateEvent jce = (JobCounterUpdateEvent) event;
      for (JobCounterUpdateEvent.CounterIncrementalUpdate ci : jce
          .getCounterUpdates()) {
        job.jobCounters.findCounter(ci.getCounterKey()).increment(
          ci.getIncrementValue());
      }
    }
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      try {
        stateMachine.doTransition(event.getType(), event);
      } catch (InvalidStateTransitonException e) {
        LOG.error("Can't handle this event at current state for "
            + this.attemptId, e);
        eventHandler.handle(new JobDiagnosticsUpdateEvent(
            this.attemptId.getTaskId().getJobId(), "Invalid event " + event.getType() +
            " on TaskAttempt " + this.attemptId));
        eventHandler.handle(new JobEvent(this.attemptId.getTaskId().getJobId(),
            JobEventType.INTERNAL_ERROR));
      }
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  @Test
  public void testReportDiagnostics() throws Exception {
    JobID jobID = JobID.forName("job_1234567890000_0001");
    JobId jobId = TypeConverter.toYarn(jobID);
    final String diagMsg = "some diagnostic message";
    final JobDiagnosticsUpdateEvent diagUpdateEvent =
        new JobDiagnosticsUpdateEvent(jobId, diagMsg);
    MRAppMetrics mrAppMetrics = MRAppMetrics.create();
    AppContext mockContext = mock(AppContext.class);
    when(mockContext.hasSuccessfullyUnregistered()).thenReturn(true);
    JobImpl job = new JobImpl(jobId, Records
        .newRecord(ApplicationAttemptId.class), new Configuration(),
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        LOG.error("Can't handle this event at current state for "
            + this.attemptId, e);
        eventHandler.handle(new JobDiagnosticsUpdateEvent(
            this.attemptId.getTaskId().getJobId(), "Invalid event " + event.getType() +
            " on TaskAttempt " + this.attemptId));
        eventHandler.handle(new JobEvent(this.attemptId.getTaskId().getJobId(),
            JobEventType.INTERNAL_ERROR));
      }
      if (oldState != getInternalState()) {
          LOG.info(attemptId + " TaskAttempt Transitioned from "
           + oldState + " to "
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Related Classes of org.apache.hadoop.mapreduce.v2.app.job.impl.MapTaskImpl

  • org.apache.hadoop.conf.Configuration
  • org.apache.hadoop.fs.FileSystem
  • org.apache.hadoop.fs.FSDataInputStream
  • org.apache.hadoop.fs.Path
  • org.apache.hadoop.fs.permission.FsPermission
  • org.apache.hadoop.mapred.JobConf
  • org.apache.hadoop.mapred.MapTaskAttemptImpl
  • org.apache.hadoop.mapred.TaskAttemptListenerImpl
  • org.apache.hadoop.mapred.TestClientRedirect
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