Examples of org.apache.hadoop.examples.SleepJob

org.apache.hadoop.examples.SleepJob
Dummy class for testing MR framefork. Sleeps for a defined period of time in mapper and reducer. Generates fake input for map / reduce jobs. Note that generated number of input pairs is in the order of numMappers * mapSleepTime / 100, so the job uses some disk space.

  }


  // starts a sleep job with 1 map task that runs for a long time
  private RunningJob startSleepJobAsUser(String user, final JobConf conf,
      MiniMRCluster cluster) throws Exception {
  final SleepJob sleepJob = new SleepJob();
    sleepJob.setConf(conf);
    UserGroupInformation jobSubmitterUGI = 
        UserGroupInformation.createRemoteUser(user);
    RunningJob job =
        jobSubmitterUGI.doAs(new PrivilegedExceptionAction<RunningJob>() {
        public RunningJob run() throws Exception {
          JobClient jobClient = new JobClient(conf);
          SleepJob sleepJob = new SleepJob();
          sleepJob.setConf(conf);
          JobConf jobConf =
              sleepJob.setupJobConf(1, 0, 900000, 1, 1000, 1000);
          RunningJob runningJob = jobClient.submitJob(jobConf);
          return runningJob;
        }
      });
    JobID jobId = job.getID();

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    // Let us add group1 and group3 to modify-job-acl. So modifyColleague and
    // viewAndModifyColleague will be able to modify the job
    conf.set(JobContext.JOB_ACL_MODIFY_JOB, " group1,group3");


    final SleepJob sleepJob = new SleepJob();
    final JobConf jobConf = new JobConf(conf);
    sleepJob.setConf(jobConf);
    UserGroupInformation jobSubmitterUGI =
        UserGroupInformation.createRemoteUser(jobSubmitter);
    RunningJob job =
        jobSubmitterUGI.doAs(new PrivilegedExceptionAction<RunningJob>() {
          public RunningJob run() throws Exception {
            JobClient jobClient = new JobClient(jobConf);
            SleepJob sleepJob = new SleepJob();
            sleepJob.setConf(jobConf);
            JobConf jobConf =
                sleepJob.setupJobConf(1, 0, 1000, 1, 1000, 1000);
            RunningJob runningJob = jobClient.runJob(jobConf);
            return runningJob;
          }
        });

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    startCluster(1, clusterProps, schedulerProps);
    JobConf conf = getJobConf();
    conf.setSpeculativeExecution(false);
    conf.set("mapred.committer.job.setup.cleanup.needed", "false");
    conf.setNumTasksToExecutePerJvm(-1);
    SleepJob sleepJob = new SleepJob();
    sleepJob.setConf(conf);
    JobConf job = sleepJob.setupJobConf(3, 3, 1, 1, 1, 1);
    RunningJob rjob;
    try {
      rjob = runJob(job, false);
      fail("The job should have thrown Exception");
    } catch (Exception e) {

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    JobConf conf = getJobConf();
    conf.setSpeculativeExecution(false);
    conf.set("mapred.committer.job.setup.cleanup.needed", "false");
    conf.setNumTasksToExecutePerJvm(-1);
    conf.setQueueName(queues[0]);
    SleepJob sleepJob1 = new SleepJob();
    sleepJob1.setConf(conf);
    JobConf sleepJobConf = sleepJob1.setupJobConf(1, 1, 1, 1, 1, 1);
    jobs[0] = runJob(sleepJobConf, true);


    JobConf conf2 = getJobConf();
    conf2.setSpeculativeExecution(false);
    conf2.set("mapred.committer.job.setup.cleanup.needed", "false");
    conf2.setNumTasksToExecutePerJvm(-1);
    conf2.setQueueName(queues[1]);
    SleepJob sleepJob2 = new SleepJob();
    sleepJob2.setConf(conf2);
    JobConf sleep2 = sleepJob2.setupJobConf(3, 3, 5, 3, 5, 3);
    jobs[1] = runJob(sleep2, false);
    assertTrue("Sleep job submitted to queue 1 is not successful", jobs[0]
        .isSuccessful());
    assertTrue("Sleep job submitted to queue 2 is not successful", jobs[1]
        .isSuccessful());

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public class TestFairSchedulerSystem {
  static final int NUM_THREADS=5;


  private void runSleepJob(JobConf conf) throws Exception {
    String[] args = { "-m", "1", "-r", "1", "-mt", "1", "-rt", "1" };
    ToolRunner.run(conf, new SleepJob(), args);
  }

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                                      throws IOException, InterruptedException {
    JobConf clientConf = new JobConf();
    clientConf.set("mapred.job.tracker", "localhost:"
        + miniMRCluster.getJobTrackerPort());
    UserGroupInformation ugi;
    SleepJob job = new SleepJob();
    job.setConf(clientConf);
    clientConf = job.setupJobConf(numMappers, numReducers, 
        mapSleepTime, (int)mapSleepTime/100,
        reduceSleepTime, (int)reduceSleepTime/100);
    if (queueName != null) {
      clientConf.setQueueName(queueName);
    }

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    //This counter will check for count of a loop,
    //which might become infinite.
    int count = 0;


    SleepJob job = new SleepJob();
    job.setConf(conf);
    conf = job.setupJobConf(5, 1, 1000, 1000, 100, 100);


    DistributedCache.createSymlink(conf);
    URI uri = URI.create(uriPath);
    DistributedCache.addCacheFile(uri, conf);
    JobConf jconf = new JobConf(conf);

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    int taskTrackerCounter = 0;
    //This will store all the tasktrackers in which tasks ran
    ArrayList<String> taskTrackerCollection = new ArrayList<String>();


    do {
      SleepJob job = new SleepJob();
      job.setConf(conf);
      conf = job.setupJobConf(5, 1, 1000, 1000, 100, 100);


      DistributedCache.createSymlink(conf);
      URI uri = URI.create(uriPath);
      DistributedCache.addCacheFile(uri, conf);
      JobConf jconf = new JobConf(conf);

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    ArrayList<String> taskTrackerCollection = new ArrayList<String>();
    //This boolean tells if two tasks ran onteh same tasktracker or not
    boolean taskTrackerFound = false;


    do {
      SleepJob job = new SleepJob();
      job.setConf(conf);
      conf = job.setupJobConf(5, 1, 1000, 1000, 100, 100);


      //Before starting, Modify the file
      String input = "This will be the content of\n" + "distributed cache\n";
      //Creating the path with the file
      DataOutputStream file =

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  }
  
  @Test
  public void testJobSubmission() throws Exception {
    Configuration conf = new Configuration(cluster.getConf());
    SleepJob job = new SleepJob();
    job.setConf(conf);
    conf = job.setupJobConf(1, 1, 100, 100, 100, 100);
    RunningJob rJob = cluster.getJTClient().submitAndVerifyJob(conf);
    cluster.getJTClient().verifyJobHistory(rJob.getID());
  }

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