Package org.apache.hadoop.mapred.FakeObjectUtilities

Examples of org.apache.hadoop.mapred.FakeObjectUtilities.FakeJobInProgress

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    JobConf conf = new JobConf();
    conf.setSpeculativeExecution(true);
    conf.setNumMapTasks(3);
    conf.setNumReduceTasks(3);
    conf.setFloat(JobContext.SPECULATIVE_SLOWTASK_THRESHOLD, 0.5f);
    FakeJobInProgress job = new FakeJobInProgress(conf, jobTracker);
    job.initTasks();

    //Check for runningMap counts first
    //schedule maps
    taskAttemptID[0] = job.findMapTask(trackers[0]);
    taskAttemptID[1] = job.findMapTask(trackers[1]);
    taskAttemptID[2] = job.findMapTask(trackers[2]);

    clock.advance(5000);
    job.finishTask(taskAttemptID[0]);
    clock.advance(1000);
    job.finishTask(taskAttemptID[1]);
    clock.advanceBySpeculativeLag();

    //we should get a speculative task now
    taskAttemptID[3] = job.findMapTask(trackers[3]);
    int oldRunningMap = job.runningMaps();
    LOG.info("No of running maps before fail was " + oldRunningMap);
    job.failTask(taskAttemptID[2]);
    assertEquals(
      "Running maps count should be updated from " + oldRunningMap + " to " +
        (oldRunningMap - 1), job.runningMaps(), oldRunningMap - 1);
    LOG.info(" Job running maps after fail " + job.runningMaps());

    clock.advance(5000);
    job.finishTask(taskAttemptID[3]);

    //check for runningReduce count.
    taskAttemptID[4] = job.findReduceTask(trackers[0]);
    taskAttemptID[5] = job.findReduceTask(trackers[1]);
    taskAttemptID[6] = job.findReduceTask(trackers[2]);

    clock.advance(5000);
    job.finishTask(taskAttemptID[4]);
    clock.advance(1000);
    job.finishTask(taskAttemptID[5]);

    clock.advanceBySpeculativeLag();
    taskAttemptID[7] = job.findReduceTask(trackers[4]);

    int oldRunningReduces = job.runningReduces();
    job.failTask(taskAttemptID[6]);
    LOG.info(
      " No of running Reduces before fail " + oldRunningReduces);
    LOG.info(
      " No of runing reduces after fail " + job.runningReduces());
    assertEquals(
      "Running reduces count should be updated from " + oldRunningReduces +
        " to " + (oldRunningReduces - 1), job.runningReduces(),
      oldRunningReduces - 1);
   
    job.finishTask(taskAttemptID[7]);
  }
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    TaskAttemptID[] taskAttemptID = new TaskAttemptID[20];
    JobConf conf = new JobConf();
    conf.setSpeculativeExecution(true);
    conf.setNumMapTasks(10);
    conf.setNumReduceTasks(0);
    FakeJobInProgress job = new FakeJobInProgress(conf, jobTracker);   
    job.initTasks();
    //schedule some tasks
    taskAttemptID[0] = job.findMapTask(trackers[0]);
    taskAttemptID[1] = job.findMapTask(trackers[0]);
    taskAttemptID[2] = job.findMapTask(trackers[0]);
    taskAttemptID[3] = job.findMapTask(trackers[1]);
    taskAttemptID[4] = job.findMapTask(trackers[1]);
    taskAttemptID[5] = job.findMapTask(trackers[1]);
    taskAttemptID[6] = job.findMapTask(trackers[2]);
    taskAttemptID[7] = job.findMapTask(trackers[2]);
    taskAttemptID[8] = job.findMapTask(trackers[2]);
    clock.advance(1000);
    //Some tasks finish in 1 second (on trackers[0])
    job.finishTask(taskAttemptID[0]);
    job.finishTask(taskAttemptID[1]);
    job.finishTask(taskAttemptID[2]);
    clock.advance(1000);
    //Some tasks finish in 2 second (on trackers[1])
    job.finishTask(taskAttemptID[3]);
    job.finishTask(taskAttemptID[4]);
    job.finishTask(taskAttemptID[5]);
    assertEquals("Tracker "+ trackers[0] + " expected to be not slow ",
        job.isSlowTracker(trackers[0]), false);
    clock.advance(100000);
    //After a long time, some tasks finished on trackers[2]
    job.finishTask(taskAttemptID[6]);
    job.finishTask(taskAttemptID[7]);
    job.finishTask(taskAttemptID[8]);
    assertEquals("Tracker "+ trackers[2] + " expected to be slow ",
        job.isSlowTracker(trackers[2]), true);
  }
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    JobConf conf = new JobConf();
    conf.setSpeculativeExecution(true);
    conf.setNumMapTasks(5);
    conf.setNumReduceTasks(5);
    conf.setFloat(JobContext.SPECULATIVE_SLOWTASK_THRESHOLD, 0.5f);
    FakeJobInProgress job = new FakeJobInProgress(conf, jobTracker);   
    job.initTasks();
    //schedule maps
    taskAttemptID[0] = job.findReduceTask(trackers[0]);
    taskAttemptID[1] = job.findReduceTask(trackers[1]);
    taskAttemptID[2] = job.findReduceTask(trackers[2]);
    taskAttemptID[3] = job.findReduceTask(trackers[3]);
    taskAttemptID[4] = job.findReduceTask(trackers[3]);
    clock.advance(5000);
    job.finishTask(taskAttemptID[0]);
    clock.advance(1000);
    job.finishTask(taskAttemptID[1]);
    clock.advance(20000);
    clock.advanceBySpeculativeLag();
    //we should get a speculative task now
    taskAttemptID[5] = job.findReduceTask(trackers[4]);
    assertEquals(taskAttemptID[5].getTaskID().getId(),2);
    clock.advance(5000);
    job.finishTask(taskAttemptID[5]);
   
    taskAttemptID[5] = job.findReduceTask(trackers[4]);
    assertEquals(taskAttemptID[5].getTaskID().getId(),3);
   
  }
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    JobConf conf = new JobConf();
    conf.setSpeculativeExecution(true);
    conf.setNumMapTasks(5);
    conf.setNumReduceTasks(0);
    conf.setFloat(JobContext.SPECULATIVE_SLOWTASK_THRESHOLD, 0.5f);
    FakeJobInProgress job = new FakeJobInProgress(conf, jobTracker);
    job.initTasks();

    taskAttemptID[0] = job.findMapTask(trackers[0]);
    taskAttemptID[1] = job.findMapTask(trackers[1]);
    taskAttemptID[2] = job.findMapTask(trackers[2]);
    taskAttemptID[3] = job.findMapTask(trackers[3]);
    clock.advance(2000);
    job.finishTask(taskAttemptID[0]);
    job.finishTask(taskAttemptID[1]);
    job.finishTask(taskAttemptID[2]);
    clock.advance(250000);
    taskAttemptID[4] = job.findMapTask(trackers[3]);
    clock.advanceBySpeculativeLag();
    //by doing the above clock adjustments, we bring the progress rate of
    //taskID 3 lower than 4. For taskID 3, the rate is 85/317000
    //and for taskID 4, the rate is 20/65000. But when we ask for a spec task
    //now, we should get back taskID 4 (since that is expected to complete
    //later than taskID 3).
    job.progressMade(taskAttemptID[3], 0.85f);
    job.progressMade(taskAttemptID[4], 0.20f);
    taskAttemptID[5] = job.findMapTask(trackers[4]);
    assertEquals(taskAttemptID[5].getTaskID().getId(),4);
  }
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    JobConf conf = new JobConf();
    conf.setSpeculativeExecution(true);
    conf.setNumMapTasks(totalTasks);
    conf.setNumReduceTasks(0);
    jobTracker.setNumSlots(slots);
    FakeJobInProgress job = new FakeJobInProgress(conf, jobTracker);
    job.initTasks();
    int i;
    for (i = 0; i < totalTasks; i++) {
      taskAttemptID[i] = job.findMapTask(trackers[0]);
    }
    clock.advance(5000);
    for (i = 0; i < numEarlyComplete; i++) {
      job.finishTask(taskAttemptID[i]);
    }

    clock.advanceBySpeculativeLag();

    for (i = numEarlyComplete; i < totalTasks; i++) {
      job.progressMade(taskAttemptID[i], 0.85f);
    }
    clock.advance(50000);
    for (i = 0; i < (totalTasks - numEarlyComplete); i++) {
      taskAttemptID[i] = job.findMapTask(trackers[1]);
      clock.advance(2000);
      if (taskAttemptID[i] != null) {
        //add some good progress constantly for the different
        //task-attempts so that
        //the tasktracker doesn't get into the slow trackers category
        job.progressMade(taskAttemptID[i], 0.99f);
      } else {
        break;
      }
    }
    return i;
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        trackers[1],JobInProgress.convertTrackerNameToHostName(
            trackers[1]),0,new ArrayList<TaskStatus>(), 0, 2, 2);
    tt1.setStatus(status1);
    tt2.setStatus(status2);
   
    fakeJob = new FakeJobInProgress(new JobConf(job.getConfiguration()),
                    jobTracker);
    fakeJob.setClusterSize(3);
    fakeJob.initTasks();
   
    FakeObjectUtilities.sendHeartBeat(jobTracker, status1, false,
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    conf.setSpeculativeExecution(false);
    conf.setNumMapTasks(2);
    conf.setNumReduceTasks(2);
    conf.set(JobContext.REDUCE_FAILURES_MAXPERCENT, ".70");
    conf.set(JobContext.MAP_FAILURES_MAX_PERCENT, ".70");
    FakeJobInProgress job = null;
    if (taskType == null) {
      conf.setBoolean(JobContext.SETUP_CLEANUP_NEEDED, false);
      job = new FakeJobInProgress(conf, jobTracker);
    } else if (taskType == TaskType.JOB_SETUP) {
      job = new FakeJobWithSetupTask(conf, jobTracker);
    } else if (taskType == TaskType.TASK_CLEANUP) {
      job = new FakeJobWithTaskCleanupTask(conf, jobTracker);
    }
    job.setClusterSize(trackers.length);
    job.initTasks();
    return job;
  }
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   * if it is free.
   * @throws IOException
   */
  public void testSetupTaskReturnedForFreeMapSlots() throws IOException {
    // create a job with a setup task.
    FakeJobInProgress job = createJob(TaskType.JOB_SETUP);
    jobTracker.jobs.put(job.getJobID(), job);
   
    // create a status simulating a free tasktracker
    List<TaskStatus> reports = new ArrayList<TaskStatus>();
    TaskTrackerStatus ttStatus
      = createTaskTrackerStatus(trackers[2], reports);
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   * a setup task.
   * @throws IOException
   */
  public void testMapSlotsCountedForSetup() throws IOException {
    // create a job with a setup task.
    FakeJobInProgress job = createJob(TaskType.JOB_SETUP);
    jobTracker.jobs.put(job.getJobID(), job);
   
    // create another job for reservation
    FakeJobInProgress job1 = createJob(null);
    jobTracker.jobs.put(job1.getJobID(), job1);
  
    // create TT status for testing getSetupAndCleanupTasks
    List<TaskStatus> taskStatuses = new ArrayList<TaskStatus>();
    addNewTaskStatus(job, TaskType.MAP, true, trackers[0], taskStatuses);
    TaskTrackerStatus ttStatus
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   * a setup task.
   * @throws IOException
   */
  public void testReduceSlotsCountedForSetup() throws IOException {
    // create a job with a setup task.
    FakeJobInProgress job = createJob(TaskType.JOB_SETUP);
    jobTracker.jobs.put(job.getJobID(), job);
   
    // create another job for reservation
    FakeJobInProgress job1 = createJob(null);
    jobTracker.jobs.put(job1.getJobID(), job1);
   
    // create TT status for testing getSetupAndCleanupTasks
    List<TaskStatus> reports = new ArrayList<TaskStatus>();
    // because free map slots are checked first in code,
    // we fill up map slots also.
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Related Classes of org.apache.hadoop.mapred.FakeObjectUtilities.FakeJobInProgress

  • org.apache.hadoop.mapred.TestClusterStatus
  • org.apache.hadoop.mapred.TestLostTracker
  • org.apache.hadoop.mapred.TestSetupTaskScheduling
  • org.apache.hadoop.mapred.TestSpeculativeExecution
  • org.apache.hadoop.mapred.TestTrackerReservation
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