org.apache.hadoop.mapreduce.Job#isComplete ( )源码实例Demo

@Override
public void cancel(String jobId) throws IOException {
  JobID id = JobID.forName(jobId);
  Cluster cluster = new Cluster(this.getConf());
  try {
    Job job = cluster.getJob(id);
    if (job == null) {
      LOG.error("No job found for " + id);
      // should we throw exception
      return;
    }
    if (job.isComplete() || job.isRetired()) {
      return;
    }

    job.killJob();
    LOG.debug("Killed copy job " + id);
  } catch (InterruptedException e) {
    throw new IOException(e);
  }
}
 

private void submitAndWait(Job job) throws ClassNotFoundException, IOException, InterruptedException {
  job.submit();
  MRCompactor.addRunningHadoopJob(this.dataset, job);
  LOG.info(String.format("MR job submitted for dataset %s, input %s, url: %s", this.dataset, getInputPaths(),
      job.getTrackingURL()));
  while (!job.isComplete()) {
    if (this.policy == Policy.ABORT_ASAP) {
      LOG.info(String.format(
          "MR job for dataset %s, input %s killed due to input data incompleteness." + " Will try again later",
          this.dataset, getInputPaths()));
      job.killJob();
      return;
    }
    Thread.sleep(MR_JOB_CHECK_COMPLETE_INTERVAL_MS);
  }
  if (!job.isSuccessful()) {
    throw new RuntimeException(String.format("MR job failed for topic %s, input %s, url: %s", this.dataset,
        getInputPaths(), job.getTrackingURL()));
  }
}
 

@Override
public void cancel() throws IOException {
  try {
    for (Map.Entry<Dataset, Job> entry : MRCompactor.RUNNING_MR_JOBS.entrySet()) {
      Job hadoopJob = entry.getValue();
      if (!hadoopJob.isComplete()) {
        LOG.info(String.format("Killing hadoop job %s for dataset %s", hadoopJob.getJobID(), entry.getKey()));
        hadoopJob.killJob();
      }
    }
  } finally {
    try {
      ExecutorsUtils.shutdownExecutorService(this.jobExecutor, Optional.of(LOG), 0, TimeUnit.NANOSECONDS);
    } finally {
      if (this.verifier.isPresent()) {
        this.verifier.get().closeNow();
      }
    }
  }
}
 

private void waitForJob(Job job) throws InterruptedException, IOException {
  while (!job.isComplete()) {
    LOG.debug("waiting for job {}", job.getJobName());
    sleep(100);
  }
  LOG.info("status for job {}: {}", job.getJobName(), (job.isSuccessful() ? "SUCCESS" : "FAILURE"));
  if (!job.isSuccessful()) {
    throw new RuntimeException("job failed " + job.getJobName());
  }
}
 

private void waitForJob(Job job) throws Exception {
  job.submit();
  while (!job.isComplete()) {
    sleep(100);
  }
  if (!job.isSuccessful()) {
    throw new RuntimeException("job failed " + job.getJobName());
  }
}
 

private void waitForJob(Job job) throws Exception {
  job.submit();
  while (!job.isComplete()) {
    sleep(100);
  }
  if (!job.isSuccessful()) {
    throw new RuntimeException("job failed " + job.getJobName());
  }
}
 

private void waitForJob(Job job) throws InterruptedException, IOException {
  while (!job.isComplete()) {
    System.out.println("waiting for job " + job.getJobName());
    sleep(100);
  }
  System.out.println("status for job " + job.getJobName() + ": " + (job.isSuccessful() ? "SUCCESS" : "FAILURE"));
  if (!job.isSuccessful()) {
    throw new RuntimeException("job failed " + job.getJobName());
  }
}
 

public static void waitForJob(Job job) throws Exception {
  job.submit();
  while (!job.isComplete()) {
    LOG.debug("waiting for job {}", job.getJobName());
    sleep(100);
  }
  LOG.info("status for job {}: {}", job.getJobName(), (job.isSuccessful() ? "SUCCESS" : "FAILURE"));
  if (!job.isSuccessful()) {
    throw new RuntimeException("job failed " + job.getJobName());
  }
}
 

static void waitForJob(Job job) throws Exception {
  job.submit();
  while (!job.isComplete()) {
    LOG.debug("waiting for job {}", job.getJobName());
    sleep(50);
  }
  LOG.debug("status for job " + job.getJobName() + ": " + (job.isSuccessful() ? "SUCCESS" : "FAILURE"));
  if (!job.isSuccessful()) {
    throw new RuntimeException("job failed " + job.getJobName());
  }
}
 

private void waitForJob(Job job) throws Exception {
  job.submit();
  while (!job.isComplete()) {
    LOG.debug("waiting for job {}", job.getJobName());
    sleep(100);
  }
  LOG.info("status for job {}: {}", job.getJobName(), (job.isSuccessful() ? "SUCCESS" : "FAILURE"));
  if (!job.isSuccessful()) {
    throw new RuntimeException("job failed " + job.getJobName());
  }
}
 

private void waitForJob(Job job) throws Exception {
  job.submit();
  while (!job.isComplete()) {
    LOG.debug("waiting for job {}", job.getJobName());
    sleep(100);
  }
  LOG.info("status for job {}: {}", job.getJobName(), (job.isSuccessful() ? "SUCCESS" : "FAILURE"));
  if (!job.isSuccessful()) {
    throw new RuntimeException("job failed " + job.getJobName());
  }
}
 

private void waitForJob(Job job) throws Exception {
  job.submit();
  while (!job.isComplete()) {
    LOG.debug("waiting for job {}", job.getJobName());
    sleep(100);
  }
  LOG.info("status for job {}: {}", job.getJobName(), (job.isSuccessful() ? "SUCCESS" : "FAILURE"));
  if (!job.isSuccessful()) {
    throw new RuntimeException("job failed " + job.getJobName());
  }
}
 

@Override
public TaskRegionObserver.TaskResult checkCurrentResult(Task.TaskRecord taskRecord)
        throws Exception {

    String jobID = getJobID(taskRecord.getData());
    if (jobID != null) {
        Configuration conf = HBaseConfiguration.create(env.getConfiguration());
        Configuration configuration = HBaseConfiguration.addHbaseResources(conf);
        Cluster cluster = new Cluster(configuration);

        Job job = cluster.getJob(org.apache.hadoop.mapreduce.JobID.forName(jobID));
        if (job == null) {
            return new  TaskRegionObserver.TaskResult(TaskRegionObserver.TaskResultCode.SKIPPED, "");
        }
        if (job != null && job.isComplete()) {
            if (job.isSuccessful()) {
                LOGGER.warn("IndexRebuildTask checkCurrentResult job is successful "
                        + taskRecord.getTableName());
                return new TaskRegionObserver.TaskResult(TaskRegionObserver.TaskResultCode.SUCCESS, "");
            } else {
                return new TaskRegionObserver.TaskResult(TaskRegionObserver.TaskResultCode.FAIL,
                        "Index is DISABLED");
            }
        }

    }
    return null;
}
 

public void testBlurOutputFormatCleanupDuringJobKillTest() throws IOException, InterruptedException,
    ClassNotFoundException {
  Path input = getInDir();
  Path output = getOutDir();
  _fileSystem.delete(input, true);
  _fileSystem.delete(output, true);
  // 1500 * 50 = 75,000
  writeRecordsFile(new Path(input, "part1"), 1, 50, 1, 1500, "cf1");
  // 100 * 5000 = 500,000
  writeRecordsFile(new Path(input, "part2"), 1, 5000, 2000, 100, "cf1");

  Job job = Job.getInstance(_conf, "blur index");
  job.setJarByClass(BlurOutputFormatTest.class);
  job.setMapperClass(CsvBlurMapper.class);
  job.setInputFormatClass(TextInputFormat.class);

  FileInputFormat.addInputPath(job, input);
  CsvBlurMapper.addColumns(job, "cf1", "col");

  Path tablePath = new Path(new Path(_root, "table"), "test");

  TableDescriptor tableDescriptor = new TableDescriptor();
  tableDescriptor.setShardCount(2);
  tableDescriptor.setTableUri(tablePath.toString());
  tableDescriptor.setName("test");

  createShardDirectories(getOutDir(), 2);

  BlurOutputFormat.setupJob(job, tableDescriptor);
  BlurOutputFormat.setOutputPath(job, output);
  BlurOutputFormat.setIndexLocally(job, false);

  job.submit();
  boolean killCalled = false;
  while (!job.isComplete()) {
    Thread.sleep(1000);
    System.out.printf("Killed [" + killCalled + "] Map [%f] Reduce [%f]%n", job.mapProgress() * 100,
        job.reduceProgress() * 100);
    if (job.reduceProgress() > 0.7 && !killCalled) {
      job.killJob();
      killCalled = true;
    }
  }

  assertFalse(job.isSuccessful());

  for (int i = 0; i < tableDescriptor.getShardCount(); i++) {
    Path path = new Path(output, ShardUtil.getShardName(i));
    FileSystem fileSystem = path.getFileSystem(job.getConfiguration());
    FileStatus[] listStatus = fileSystem.listStatus(path);
    assertEquals(toString(listStatus), 0, listStatus.length);
  }
}