Java JobStory.getNumberMaps方法代码示例

import org.apache.hadoop.tools.rumen.JobStory; //导入方法依赖的package包/类
/**
 * Generates a job stats.
 */
public static JobStats generateJobStats(Job job, JobStory jobdesc) {
  int seq = GridmixJob.getJobSeqId(job);
  // bail out if job description is missing for a job to be simulated
  if (seq >= 0 && jobdesc == null) {
    throw new IllegalArgumentException("JobStory not available for job " 
                                       + job.getJobID());
  }
  
  int maps = -1;
  int reds = -1;
  if (jobdesc != null) {
    // Note that the ZombieJob will return a >= 0 value
    maps = jobdesc.getNumberMaps();
    reds = jobdesc.getNumberReduces();
  }
  return new JobStats(maps, reds, job);
}
 

import org.apache.hadoop.tools.rumen.JobStory; //导入方法依赖的package包/类
public void addJobStats(Job job, JobStory jobdesc) {
  int seq = GridmixJob.getJobSeqId(job);
  if (seq < 0) {
    LOG.info("Not tracking job " + job.getJobName()
        + " as seq id is less than zero: " + seq);
    return;
  }
  
  int maps = 0;
  if (jobdesc == null) {
    throw new IllegalArgumentException(
      " JobStory not available for job " + job.getJobName());
  } else {
    maps = jobdesc.getNumberMaps();
  }
  JobStats stats = new JobStats(maps,job);
  jobMaps.put(seq,stats);
}
 

import org.apache.hadoop.tools.rumen.JobStory; //导入方法依赖的package包/类
/**
 * Verifies that the given {@code JobStory} corresponds to the checked-in
 * WordCount {@code JobStory}. The verification is effected via JUnit
 * assertions.
 *
 * @param js the candidate JobStory.
 */
private void verifyWordCountJobStory(JobStory js) {
  assertNotNull("Null JobStory", js);
  String expectedJobStory = "WordCount:johndoe:default:1285322645148:3:1";
  String actualJobStory = js.getName() + ":" + js.getUser() + ":"
          + js.getQueueName() + ":" + js.getSubmissionTime() + ":"
          + js.getNumberMaps() + ":" + js.getNumberReduces();
  assertEquals("Unexpected JobStory", expectedJobStory, actualJobStory);
}
 

import org.apache.hadoop.tools.rumen.JobStory; //导入方法依赖的package包/类
protected JobStory getNextJobFiltered() throws IOException {
  JobStory job = getNextJobFromTrace();
  // filter out the following jobs
  //    - unsuccessful jobs
  //    - jobs with missing submit-time
  //    - reduce only jobs
  // These jobs are not yet supported in Gridmix
  while (job != null &&
    (job.getOutcome() != Pre21JobHistoryConstants.Values.SUCCESS ||
      job.getSubmissionTime() < 0 || job.getNumberMaps() == 0)) {
    if (LOG.isDebugEnabled()) {
      List<String> reason = new ArrayList<String>();
      if (job.getOutcome() != Pre21JobHistoryConstants.Values.SUCCESS) {
        reason.add("STATE (" + job.getOutcome().name() + ")");
      }
      if (job.getSubmissionTime() < 0) {
        reason.add("SUBMISSION-TIME (" + job.getSubmissionTime() + ")");
      }
      if (job.getNumberMaps() == 0) {
        reason.add("ZERO-MAPS-JOB");
      }
      
      // TODO This should never happen. Probably we missed something!
      if (reason.size() == 0) {
        reason.add("N/A");
      }
      
      LOG.debug("Ignoring job " + job.getJobID() + " from the input trace."
                + " Reason: " + StringUtils.join(reason, ","));
    }
    job = getNextJobFromTrace();
  }
  return null == job ? null : new FilterJobStory(job) {
    @Override
    public TaskInfo getTaskInfo(TaskType taskType, int taskNumber) {
      TaskInfo info = this.job.getTaskInfo(taskType, taskNumber);
      if (info != null) {
        info = new MinTaskInfo(info);
      } else {
        info = new MinTaskInfo(new TaskInfo(0, 0, 0, 0, 0));
      }
      return info;
    }
  };
}
 

import org.apache.hadoop.tools.rumen.JobStory; //导入方法依赖的package包/类
@SuppressWarnings("deprecation")
  public SimulatorJobInProgress(JobID jobid, JobTracker jobtracker,
      JobConf default_conf, JobStory jobStory) {
    super(jobid, jobStory.getJobConf(), jobtracker);
    // jobSetupCleanupNeeded set to false in parent cstr, though
    // default is true

    restartCount = 0;
    jobSetupCleanupNeeded = false;
      
    this.memoryPerMap = conf.getMemoryForMapTask();
    this.memoryPerReduce = conf.getMemoryForReduceTask();
    this.maxTaskFailuresPerTracker = conf.getMaxTaskFailuresPerTracker();
    
    this.jobId = jobid;
    String url = "http://" + jobtracker.getJobTrackerMachine() + ":"
        + jobtracker.getInfoPort() + "/jobdetails.jsp?jobid=" + jobid;
    this.jobtracker = jobtracker;
    this.conf = jobStory.getJobConf();
    this.priority = conf.getJobPriority();
    Path jobDir = jobtracker.getSystemDirectoryForJob(jobid);
    this.jobFile = new Path(jobDir, "job.xml");
    this.status = new JobStatus(jobid, 0.0f, 0.0f, 0.0f, 0.0f, JobStatus.PREP,
            priority, conf.getUser());
    this.profile = new JobProfile(jobStory.getUser(), jobid, this.jobFile
        .toString(), url, jobStory.getName(), conf.getQueueName());
    this.startTime = JobTracker.getClock().getTime();
    status.setStartTime(startTime);
    this.resourceEstimator = new ResourceEstimator(this);

    this.numMapTasks = jobStory.getNumberMaps();
    this.numReduceTasks = jobStory.getNumberReduces();
    this.taskCompletionEvents = new ArrayList<TaskCompletionEvent>(numMapTasks
        + numReduceTasks + 10);

    this.mapFailuresPercent = conf.getMaxMapTaskFailuresPercent();
    this.reduceFailuresPercent = conf.getMaxReduceTaskFailuresPercent();
    MetricsContext metricsContext = MetricsUtil.getContext("mapred");
    this.jobMetrics = MetricsUtil.createRecord(metricsContext, "job");
    this.jobMetrics.setTag("user", conf.getUser());
    this.jobMetrics.setTag("sessionId", conf.getSessionId());
    this.jobMetrics.setTag("jobName", conf.getJobName());
    this.jobMetrics.setTag("jobId", jobid.toString());

    this.maxLevel = jobtracker.getNumTaskCacheLevels();
    this.anyCacheLevel = this.maxLevel + 1;
    this.nonLocalMaps = new LinkedList<TaskInProgress>();
    this.nonLocalRunningMaps = new LinkedHashSet<TaskInProgress>();
    this.runningMapCache = new IdentityHashMap<Node, Set<TaskInProgress>>();
    this.nonRunningReduces = new LinkedList<TaskInProgress>();
    this.runningReduces = new LinkedHashSet<TaskInProgress>();
    this.slowTaskThreshold = Math.max(0.0f, conf.getFloat(
        "mapred.speculative.execution.slowTaskThreshold", 1.0f));
    this.speculativeCap = conf.getFloat(
        "mapred.speculative.execution.speculativeCap", 0.1f);
    this.slowNodeThreshold = conf.getFloat(
        "mapred.speculative.execution.slowNodeThreshold", 1.0f);

    this.jobStory = jobStory;
//    this.jobHistory = this.jobtracker.getJobHistory();
  }