Java Code Examples for org.apache.hadoop.RandomTextWriterJob#createJob()

The following examples show how to use org.apache.hadoop.RandomTextWriterJob#createJob() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: TestMRJobs.java From hadoop with Apache License 2.0

4 votes

@Test (timeout = 60000)
public void testRandomWriter() throws IOException, InterruptedException,
    ClassNotFoundException {
  
  LOG.info("\n\n\nStarting testRandomWriter().");
  if (!(new File(MiniMRYarnCluster.APPJAR)).exists()) {
    LOG.info("MRAppJar " + MiniMRYarnCluster.APPJAR
             + " not found. Not running test.");
    return;
  }

  RandomTextWriterJob randomWriterJob = new RandomTextWriterJob();
  mrCluster.getConfig().set(RandomTextWriterJob.TOTAL_BYTES, "3072");
  mrCluster.getConfig().set(RandomTextWriterJob.BYTES_PER_MAP, "1024");
  Job job = randomWriterJob.createJob(mrCluster.getConfig());
  Path outputDir = new Path(OUTPUT_ROOT_DIR, "random-output");
  FileOutputFormat.setOutputPath(job, outputDir);
  job.setSpeculativeExecution(false);
  job.addFileToClassPath(APP_JAR); // The AppMaster jar itself.
  job.setJarByClass(RandomTextWriterJob.class);
  job.setMaxMapAttempts(1); // speed up failures
  job.submit();
  String trackingUrl = job.getTrackingURL();
  String jobId = job.getJobID().toString();
  boolean succeeded = job.waitForCompletion(true);
  Assert.assertTrue(succeeded);
  Assert.assertEquals(JobStatus.State.SUCCEEDED, job.getJobState());
  Assert.assertTrue("Tracking URL was " + trackingUrl +
                    " but didn't Match Job ID " + jobId ,
        trackingUrl.endsWith(jobId.substring(jobId.lastIndexOf("_")) + "/"));
  
  // Make sure there are three files in the output-dir
  
  RemoteIterator<FileStatus> iterator =
      FileContext.getFileContext(mrCluster.getConfig()).listStatus(
          outputDir);
  int count = 0;
  while (iterator.hasNext()) {
    FileStatus file = iterator.next();
    if (!file.getPath().getName()
        .equals(FileOutputCommitter.SUCCEEDED_FILE_NAME)) {
      count++;
    }
  }
  Assert.assertEquals("Number of part files is wrong!", 3, count);
  verifyRandomWriterCounters(job);

  // TODO later:  add explicit "isUber()" checks of some sort
}

Example 2

Source File: TestMRJobs.java From big-c with Apache License 2.0

4 votes

@Test (timeout = 60000)
public void testRandomWriter() throws IOException, InterruptedException,
    ClassNotFoundException {
  
  LOG.info("\n\n\nStarting testRandomWriter().");
  if (!(new File(MiniMRYarnCluster.APPJAR)).exists()) {
    LOG.info("MRAppJar " + MiniMRYarnCluster.APPJAR
             + " not found. Not running test.");
    return;
  }

  RandomTextWriterJob randomWriterJob = new RandomTextWriterJob();
  mrCluster.getConfig().set(RandomTextWriterJob.TOTAL_BYTES, "3072");
  mrCluster.getConfig().set(RandomTextWriterJob.BYTES_PER_MAP, "1024");
  Job job = randomWriterJob.createJob(mrCluster.getConfig());
  Path outputDir = new Path(OUTPUT_ROOT_DIR, "random-output");
  FileOutputFormat.setOutputPath(job, outputDir);
  job.setSpeculativeExecution(false);
  job.addFileToClassPath(APP_JAR); // The AppMaster jar itself.
  job.setJarByClass(RandomTextWriterJob.class);
  job.setMaxMapAttempts(1); // speed up failures
  job.submit();
  String trackingUrl = job.getTrackingURL();
  String jobId = job.getJobID().toString();
  boolean succeeded = job.waitForCompletion(true);
  Assert.assertTrue(succeeded);
  Assert.assertEquals(JobStatus.State.SUCCEEDED, job.getJobState());
  Assert.assertTrue("Tracking URL was " + trackingUrl +
                    " but didn't Match Job ID " + jobId ,
        trackingUrl.endsWith(jobId.substring(jobId.lastIndexOf("_")) + "/"));
  
  // Make sure there are three files in the output-dir
  
  RemoteIterator<FileStatus> iterator =
      FileContext.getFileContext(mrCluster.getConfig()).listStatus(
          outputDir);
  int count = 0;
  while (iterator.hasNext()) {
    FileStatus file = iterator.next();
    if (!file.getPath().getName()
        .equals(FileOutputCommitter.SUCCEEDED_FILE_NAME)) {
      count++;
    }
  }
  Assert.assertEquals("Number of part files is wrong!", 3, count);
  verifyRandomWriterCounters(job);

  // TODO later:  add explicit "isUber()" checks of some sort
}

Example 3

Source File: TestMRRJobs.java From incubator-tez with Apache License 2.0

4 votes

@Test (timeout = 60000)
public void testRandomWriter() throws IOException, InterruptedException,
    ClassNotFoundException {

  LOG.info("\n\n\nStarting testRandomWriter().");
  if (!(new File(MiniTezCluster.APPJAR)).exists()) {
    LOG.info("MRAppJar " + MiniTezCluster.APPJAR
             + " not found. Not running test.");
    return;
  }

  RandomTextWriterJob randomWriterJob = new RandomTextWriterJob();
  mrrTezCluster.getConfig().set(RandomTextWriterJob.TOTAL_BYTES, "3072");
  mrrTezCluster.getConfig().set(RandomTextWriterJob.BYTES_PER_MAP, "1024");
  Job job = randomWriterJob.createJob(mrrTezCluster.getConfig());
  Path outputDir = new Path(OUTPUT_ROOT_DIR, "random-output");
  FileOutputFormat.setOutputPath(job, outputDir);
  job.setSpeculativeExecution(false);
  job.setJarByClass(RandomTextWriterJob.class);
  job.setMaxMapAttempts(1); // speed up failures
  job.submit();
  String trackingUrl = job.getTrackingURL();
  String jobId = job.getJobID().toString();
  boolean succeeded = job.waitForCompletion(true);
  Assert.assertTrue(succeeded);
  Assert.assertEquals(JobStatus.State.SUCCEEDED, job.getJobState());
  Assert.assertTrue("Tracking URL was " + trackingUrl +
                    " but didn't Match Job ID " + jobId ,
        trackingUrl.endsWith(jobId.substring(jobId.lastIndexOf("_")) + "/"));

  // Make sure there are three files in the output-dir

  RemoteIterator<FileStatus> iterator =
      FileContext.getFileContext(mrrTezCluster.getConfig()).listStatus(
          outputDir);
  int count = 0;
  while (iterator.hasNext()) {
    FileStatus file = iterator.next();
    if (!file.getPath().getName()
        .equals(FileOutputCommitter.SUCCEEDED_FILE_NAME)) {
      count++;
    }
  }
  Assert.assertEquals("Number of part files is wrong!", 3, count);

}

Example 4

Source File: TestMRRJobs.java From tez with Apache License 2.0

4 votes

@Test (timeout = 60000)
public void testRandomWriter() throws IOException, InterruptedException,
    ClassNotFoundException {

  LOG.info("\n\n\nStarting testRandomWriter().");
  if (!(new File(MiniTezCluster.APPJAR)).exists()) {
    LOG.info("MRAppJar " + MiniTezCluster.APPJAR
             + " not found. Not running test.");
    return;
  }

  RandomTextWriterJob randomWriterJob = new RandomTextWriterJob();
  mrrTezCluster.getConfig().set(RandomTextWriterJob.TOTAL_BYTES, "3072");
  mrrTezCluster.getConfig().set(RandomTextWriterJob.BYTES_PER_MAP, "1024");
  Job job = randomWriterJob.createJob(mrrTezCluster.getConfig());
  Path outputDir = new Path(OUTPUT_ROOT_DIR, "random-output");
  FileOutputFormat.setOutputPath(job, outputDir);
  job.setSpeculativeExecution(false);
  job.setJarByClass(RandomTextWriterJob.class);
  job.setMaxMapAttempts(1); // speed up failures
  job.submit();
  String trackingUrl = job.getTrackingURL();
  String jobId = job.getJobID().toString();
  boolean succeeded = job.waitForCompletion(true);
  Assert.assertTrue(succeeded);
  Assert.assertEquals(JobStatus.State.SUCCEEDED, job.getJobState());
  Assert.assertTrue("Tracking URL was " + trackingUrl +
                    " but didn't Match Job ID " + jobId ,
        trackingUrl.contains(jobId.substring(jobId.indexOf("_"))));

  // Make sure there are three files in the output-dir

  RemoteIterator<FileStatus> iterator =
      FileContext.getFileContext(mrrTezCluster.getConfig()).listStatus(
          outputDir);
  int count = 0;
  while (iterator.hasNext()) {
    FileStatus file = iterator.next();
    if (!file.getPath().getName()
        .equals(FileOutputCommitter.SUCCEEDED_FILE_NAME)) {
      count++;
    }
  }
  Assert.assertEquals("Number of part files is wrong!", 3, count);

}