Examples of org.apache.hadoop.mapreduce.v2.app.client.MRClientService

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

Examples of org.apache.hadoop.mapreduce.v2.app.client.MRClientService

org.apache.hadoop.mapreduce.v2.app.job.Task
This module is responsible for talking to the jobclient (user facing).

    dispatcher.start();


    OutputCommitter committer = mock(OutputCommitter.class);
    doThrow(new IOException("forcefail"))
      .when(committer).setupJob(any(JobContext.class));
    CommitterEventHandler commitHandler =
        createCommitterEventHandler(dispatcher, committer);
    commitHandler.init(conf);
    commitHandler.start();


    AppContext mockContext = mock(AppContext.class);
    when(mockContext.hasSuccessfullyUnregistered()).thenReturn(false);
    JobImpl job = createStubbedJob(conf, dispatcher, 2, mockContext);
    JobId jobId = job.getID();
    job.handle(new JobEvent(jobId, JobEventType.JOB_INIT));
    assertJobState(job, JobStateInternal.INITED);
    job.handle(new JobStartEvent(jobId));
    assertJobState(job, JobStateInternal.FAILED);


    job.handle(new JobEvent(jobId, JobEventType.JOB_TASK_COMPLETED));
    assertJobState(job, JobStateInternal.FAILED);
    job.handle(new JobEvent(jobId, JobEventType.JOB_TASK_ATTEMPT_COMPLETED));
    assertJobState(job, JobStateInternal.FAILED);
    job.handle(new JobEvent(jobId, JobEventType.JOB_MAP_TASK_RESCHEDULED));
    assertJobState(job, JobStateInternal.FAILED);
    job.handle(new JobEvent(jobId, JobEventType.JOB_TASK_ATTEMPT_FETCH_FAILURE));
    assertJobState(job, JobStateInternal.FAILED);
    Assert.assertEquals(JobState.RUNNING, job.getState());
    when(mockContext.hasSuccessfullyUnregistered()).thenReturn(true);
    Assert.assertEquals(JobState.FAILED, job.getState());


    dispatcher.stop();
    commitHandler.stop();
  }

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    };
    ApplicationAttemptId id = 
      ConverterUtils.toApplicationAttemptId("appattempt_1234567890000_0001_0");
    when(appContext.getApplicationID()).thenReturn(id.getApplicationId());
    when(appContext.getApplicationAttemptId()).thenReturn(id);
    CommitterEventHandler handler =
        new CommitterEventHandler(appContext, committer, heartbeatHandler);
    dispatcher.register(CommitterEventType.class, handler);
    return handler;
  }

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          }
        }


        //If all tasks are already done, we should go directly to FAIL_ABORT
        if(allDone) {
          job.eventHandler.handle(new CommitterJobAbortEvent(job.jobId,
            job.jobContext, org.apache.hadoop.mapreduce.JobStatus.State.FAILED)
          );
          return JobStateInternal.FAIL_ABORT;
        }

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      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 class KilledDuringCommitTransition implements
      SingleArcTransition<JobImpl, JobEvent> {
    @Override
    public void transition(JobImpl job, JobEvent event) {
      job.setFinishTime();
      job.eventHandler.handle(new CommitterJobAbortEvent(job.jobId,
          job.jobContext,
          org.apache.hadoop.mapreduce.JobStatus.State.KILLED));
    }

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      TaskCompletedTransition {
    @Override
    protected JobStateInternal checkJobAfterTaskCompletion(JobImpl job) {
      if (job.completedTaskCount == job.tasks.size()) {
        job.setFinishTime();
        job.eventHandler.handle(new CommitterJobAbortEvent(job.jobId,
            job.jobContext,
            org.apache.hadoop.mapreduce.JobStatus.State.KILLED));
        return JobStateInternal.KILL_ABORT;
      }
      //return the current state, Job not finished yet

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    public void transition(TaskAttemptImpl taskAttempt, 
        TaskAttemptEvent event) {
      TaskAttemptContext taskContext =
        new TaskAttemptContextImpl(taskAttempt.conf,
            TypeConverter.fromYarn(taskAttempt.attemptId));
      taskAttempt.eventHandler.handle(new CommitterTaskAbortEvent(
          taskAttempt.attemptId, taskContext));
    }

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    conf.setBoolean(MRJobConfig.JOB_UBERTASK_ENABLE, false);
    Job job = app.submit(conf);
    app.waitForState(job, JobState.FAILED);
    Map<TaskId,Task> tasks = job.getTasks();
    Assert.assertEquals("Num tasks is not correct", 1, tasks.size());
    Task task = tasks.values().iterator().next();
    Assert.assertEquals("Task state not correct", TaskState.FAILED,
        task.getReport().getTaskState());
    Map<TaskAttemptId, TaskAttempt> attempts =
        tasks.values().iterator().next().getAttempts();
    Assert.assertEquals("Num attempts is not correct", maxAttempts,
        attempts.size());
    for (TaskAttempt attempt : attempts.values()) {

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    conf.setBoolean(MRJobConfig.JOB_UBERTASK_ENABLE, false);
    Job job = app.submit(conf);
    app.waitForState(job, JobState.RUNNING);
    Map<TaskId, Task> tasks = job.getTasks();
    Assert.assertEquals("Num tasks is not correct", 1, tasks.size());
    Task task = tasks.values().iterator().next();
    app.waitForState(task, TaskState.SCHEDULED);
    Map<TaskAttemptId, TaskAttempt> attempts = tasks.values().iterator()
        .next().getAttempts();
    Assert.assertEquals("Num attempts is not correct", maxAttempts, attempts
        .size());

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    @Override
    public JobStateInternal transition(JobImpl job, JobEvent event) {
      job.completedTaskCount++;
      LOG.info("Num completed Tasks: " + job.completedTaskCount);
      JobTaskEvent taskEvent = (JobTaskEvent) event;
      Task task = job.tasks.get(taskEvent.getTaskID());
      if (taskEvent.getState() == TaskState.SUCCEEDED) {
        taskSucceeded(job, task);
      } else if (taskEvent.getState() == TaskState.FAILED) {
        taskFailed(job, task);
      } else if (taskEvent.getState() == TaskState.KILLED) {

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