Package org.apache.hadoop.yarn.server.resourcemanager

Examples of org.apache.hadoop.yarn.server.resourcemanager.Application

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      org.apache.hadoop.yarn.server.resourcemanager.resource.Priority.create(0);
    Priority priority_1 =
      org.apache.hadoop.yarn.server.resourcemanager.resource.Priority.create(1);
   
    // Submit an application
    Application application_0 = new Application("user_0", resourceManager);
    application_0.submit();
   
    application_0.addNodeManager(host_0, 1234, nm_0);
    application_0.addNodeManager(host_1, 1234, nm_1);

    Resource capability_0_0 = Resources.createResource(GB);
    application_0.addResourceRequestSpec(priority_1, capability_0_0);
   
    Resource capability_0_1 = Resources.createResource(2 * GB);
    application_0.addResourceRequestSpec(priority_0, capability_0_1);

    Task task_0_0 = new Task(application_0, priority_1,
        new String[] {host_0, host_1});
    application_0.addTask(task_0_0);
      
    // Submit another application
    Application application_1 = new Application("user_1", resourceManager);
    application_1.submit();
   
    application_1.addNodeManager(host_0, 1234, nm_0);
    application_1.addNodeManager(host_1, 1234, nm_1);
   
    Resource capability_1_0 = Resources.createResource(3 * GB);
    application_1.addResourceRequestSpec(priority_1, capability_1_0);
   
    Resource capability_1_1 = Resources.createResource(4 * GB);
    application_1.addResourceRequestSpec(priority_0, capability_1_1);

    Task task_1_0 = new Task(application_1, priority_1,
        new String[] {host_0, host_1});
    application_1.addTask(task_1_0);
       
    // Send resource requests to the scheduler
    LOG.info("Send resource requests to the scheduler");
    application_0.schedule();
    application_1.schedule();
   
    // Send a heartbeat to kick the tires on the Scheduler
    LOG.info("Send a heartbeat to kick the tires on the Scheduler... " +
        "nm0 -> task_0_0 and task_1_0 allocated, used=4G " +
        "nm1 -> nothing allocated");
    nm_0.heartbeat();             // task_0_0 and task_1_0 allocated, used=4G
    nm_1.heartbeat();             // nothing allocated
   
    // Get allocations from the scheduler
    application_0.schedule();     // task_0_0
    checkApplicationResourceUsage(GB, application_0);

    application_1.schedule();     // task_1_0
    checkApplicationResourceUsage(3 * GB, application_1);
   
    nm_0.heartbeat();
    nm_1.heartbeat();
   
    checkNodeResourceUsage(4*GB, nm_0);  // task_0_0 (1G) and task_1_0 (3G)
    checkNodeResourceUsage(0*GB, nm_1);  // no tasks, 2G available
   
    LOG.info("Adding new tasks...");
   
    Task task_1_1 = new Task(application_1, priority_1,
        new String[] {ResourceRequest.ANY});
    application_1.addTask(task_1_1);

    Task task_1_2 = new Task(application_1, priority_1,
        new String[] {ResourceRequest.ANY});
    application_1.addTask(task_1_2);

    Task task_1_3 = new Task(application_1, priority_0,
        new String[] {ResourceRequest.ANY});
    application_1.addTask(task_1_3);
   
    application_1.schedule();
   
    Task task_0_1 = new Task(application_0, priority_1,
        new String[] {host_0, host_1});
    application_0.addTask(task_0_1);

    Task task_0_2 = new Task(application_0, priority_1,
        new String[] {host_0, host_1});
    application_0.addTask(task_0_2);
   
    Task task_0_3 = new Task(application_0, priority_0,
        new String[] {ResourceRequest.ANY});
    application_0.addTask(task_0_3);

    application_0.schedule();

    // Send a heartbeat to kick the tires on the Scheduler
    LOG.info("Sending hb from " + nm_0.getHostName());
    nm_0.heartbeat();                   // nothing new, used=4G
   
    LOG.info("Sending hb from " + nm_1.getHostName());
    nm_1.heartbeat();                   // task_0_3, used=2G
   
    // Get allocations from the scheduler
    LOG.info("Trying to allocate...");
    application_0.schedule();
    checkApplicationResourceUsage(3 * GB, application_0);
    application_1.schedule();
    checkApplicationResourceUsage(3 * GB, application_1);
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkNodeResourceUsage(4*GB, nm_0);
    checkNodeResourceUsage(2*GB, nm_1);
   
    // Complete tasks
    LOG.info("Finishing up task_0_0");
    application_0.finishTask(task_0_0); // Now task_0_1
    application_0.schedule();
    application_1.schedule();
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkApplicationResourceUsage(3 * GB, application_0);
    checkApplicationResourceUsage(3 * GB, application_1);
    checkNodeResourceUsage(4*GB, nm_0);
    checkNodeResourceUsage(2*GB, nm_1);

    LOG.info("Finishing up task_1_0");
    application_1.finishTask(task_1_0);  // Now task_0_2
    application_0.schedule(); // final overcommit for app0 caused here
    application_1.schedule();
    nm_0.heartbeat(); // final overcommit for app0 occurs here
    nm_1.heartbeat();
    checkApplicationResourceUsage(4 * GB, application_0);
    checkApplicationResourceUsage(0 * GB, application_1);
    //checkNodeResourceUsage(1*GB, nm_0);  // final over-commit -> rm.node->1G, test.node=2G
    checkNodeResourceUsage(2*GB, nm_1);

    LOG.info("Finishing up task_0_3");
    application_0.finishTask(task_0_3); // No more
    application_0.schedule();
    application_1.schedule();
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkApplicationResourceUsage(2 * GB, application_0);
    checkApplicationResourceUsage(0 * GB, application_1);
    //checkNodeResourceUsage(2*GB, nm_0);  // final over-commit, rm.node->1G, test.node->2G
    checkNodeResourceUsage(0*GB, nm_1);
   
    LOG.info("Finishing up task_0_1");
    application_0.finishTask(task_0_1);
    application_0.schedule();
    application_1.schedule();
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkApplicationResourceUsage(1 * GB, application_0);
    checkApplicationResourceUsage(0 * GB, application_1);
   
    LOG.info("Finishing up task_0_2");
    application_0.finishTask(task_0_2); // now task_1_3 can go!
    application_0.schedule();
    application_1.schedule();
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkApplicationResourceUsage(0 * GB, application_0);
    checkApplicationResourceUsage(4 * GB, application_1);
   
    LOG.info("Finishing up task_1_3");
    application_1.finishTask(task_1_3); // now task_1_1
    application_0.schedule();
    application_1.schedule();
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkApplicationResourceUsage(0 * GB, application_0);
    checkApplicationResourceUsage(3 * GB, application_1);
   
    LOG.info("Finishing up task_1_1");
    application_1.finishTask(task_1_1);
    application_0.schedule();
    application_1.schedule();
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkApplicationResourceUsage(0 * GB, application_0);
    checkApplicationResourceUsage(3 * GB, application_1);
   
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      org.apache.hadoop.yarn.server.resourcemanager.resource.Priority.create(0);
    Priority priority_1 =
      org.apache.hadoop.yarn.server.resourcemanager.resource.Priority.create(1);
   
    // Submit an application
    Application application_0 = new Application("user_0", "a1", resourceManager);
    application_0.submit();
   
    application_0.addNodeManager(host_0, 1234, nm_0);
    application_0.addNodeManager(host_1, 1234, nm_1);

    Resource capability_0_0 = Resources.createResource(1 * GB, 1);
    application_0.addResourceRequestSpec(priority_1, capability_0_0);
   
    Resource capability_0_1 = Resources.createResource(2 * GB, 1);
    application_0.addResourceRequestSpec(priority_0, capability_0_1);

    Task task_0_0 = new Task(application_0, priority_1,
        new String[] {host_0, host_1});
    application_0.addTask(task_0_0);
      
    // Submit another application
    Application application_1 = new Application("user_1", "b2", resourceManager);
    application_1.submit();
   
    application_1.addNodeManager(host_0, 1234, nm_0);
    application_1.addNodeManager(host_1, 1234, nm_1);
   
    Resource capability_1_0 = Resources.createResource(3 * GB, 1);
    application_1.addResourceRequestSpec(priority_1, capability_1_0);
   
    Resource capability_1_1 = Resources.createResource(2 * GB, 1);
    application_1.addResourceRequestSpec(priority_0, capability_1_1);

    Task task_1_0 = new Task(application_1, priority_1,
        new String[] {host_0, host_1});
    application_1.addTask(task_1_0);
       
    // Send resource requests to the scheduler
    application_0.schedule();
    application_1.schedule();

    // Send a heartbeat to kick the tires on the Scheduler
    LOG.info("Kick!");
    nm_0.heartbeat();             // task_0_0 and task_1_0 allocated, used=4G
    nm_1.heartbeat();             // nothing allocated

    // Get allocations from the scheduler
    application_0.schedule();     // task_0_0
    checkApplicationResourceUsage(1 * GB, application_0);

    application_1.schedule();     // task_1_0
    checkApplicationResourceUsage(3 * GB, application_1);
   
    nm_0.heartbeat();
    nm_1.heartbeat();
   
    checkNodeResourceUsage(4*GB, nm_0);  // task_0_0 (1G) and task_1_0 (3G)
    checkNodeResourceUsage(0*GB, nm_1);  // no tasks, 2G available

    LOG.info("Adding new tasks...");
   
    Task task_1_1 = new Task(application_1, priority_0,
        new String[] {ResourceRequest.ANY});
    application_1.addTask(task_1_1);

    application_1.schedule();

    Task task_0_1 = new Task(application_0, priority_0,
        new String[] {host_0, host_1});
    application_0.addTask(task_0_1);

    application_0.schedule();

    // Send a heartbeat to kick the tires on the Scheduler
    LOG.info("Sending hb from " + nm_0.getHostName());
    nm_0.heartbeat();                   // nothing new, used=4G
   
    LOG.info("Sending hb from " + nm_1.getHostName());
    nm_1.heartbeat();                   // task_0_3, used=2G
   
    // Get allocations from the scheduler
    LOG.info("Trying to allocate...");
    application_0.schedule();
    checkApplicationResourceUsage(1 * GB, application_0);

    application_1.schedule();
    checkApplicationResourceUsage(5 * GB, application_1);
   
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkNodeResourceUsage(4*GB, nm_0);
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      org.apache.hadoop.yarn.server.resourcemanager.resource.Priority.create(0);
    Priority priority_1 =
      org.apache.hadoop.yarn.server.resourcemanager.resource.Priority.create(1);
   
    // Submit an application
    Application application_0 = new Application("user_0", "a1", resourceManager);
    application_0.submit();
   
    application_0.addNodeManager(host_0, 1234, nm_0);
    application_0.addNodeManager(host_1, 1234, nm_1);

    Resource capability_0_0 = Resources.createResource(1 * GB, 1);
    application_0.addResourceRequestSpec(priority_1, capability_0_0);
   
    Resource capability_0_1 = Resources.createResource(2 * GB, 1);
    application_0.addResourceRequestSpec(priority_0, capability_0_1);

    Task task_0_0 = new Task(application_0, priority_1,
        new String[] {host_0, host_1});
    application_0.addTask(task_0_0);
      
    // Submit another application
    Application application_1 = new Application("user_1", "b2", resourceManager);
    application_1.submit();
   
    application_1.addNodeManager(host_0, 1234, nm_0);
    application_1.addNodeManager(host_1, 1234, nm_1);
   
    Resource capability_1_0 = Resources.createResource(3 * GB, 1);
    application_1.addResourceRequestSpec(priority_1, capability_1_0);
   
    Resource capability_1_1 = Resources.createResource(2 * GB, 1);
    application_1.addResourceRequestSpec(priority_0, capability_1_1);

    Task task_1_0 = new Task(application_1, priority_1,
        new String[] {host_0, host_1});
    application_1.addTask(task_1_0);
       
    // Send resource requests to the scheduler
    application_0.schedule();
    application_1.schedule();

    // Send a heartbeat to kick the tires on the Scheduler
    LOG.info("Kick!");
   
    // task_0_0 and task_1_0 allocated, used=4G
    nodeUpdate(nm_0);
   
    // nothing allocated
    nodeUpdate(nm_1);
   
    // Get allocations from the scheduler
    application_0.schedule();     // task_0_0
    checkApplicationResourceUsage(1 * GB, application_0);

    application_1.schedule();     // task_1_0
    checkApplicationResourceUsage(3 * GB, application_1);
   
    checkNodeResourceUsage(4*GB, nm_0);  // task_0_0 (1G) and task_1_0 (3G)
    checkNodeResourceUsage(0*GB, nm_1);  // no tasks, 2G available

    LOG.info("Adding new tasks...");
   
    Task task_1_1 = new Task(application_1, priority_0,
        new String[] {ResourceRequest.ANY});
    application_1.addTask(task_1_1);

    application_1.schedule();

    Task task_0_1 = new Task(application_0, priority_0,
        new String[] {host_0, host_1});
    application_0.addTask(task_0_1);

    application_0.schedule();

    // Send a heartbeat to kick the tires on the Scheduler
    LOG.info("Sending hb from " + nm_0.getHostName());
    // nothing new, used=4G
    nodeUpdate(nm_0);
   
    LOG.info("Sending hb from " + nm_1.getHostName());
    // task_0_1 is prefer as locality, used=2G
    nodeUpdate(nm_1);
   
    // Get allocations from the scheduler
    LOG.info("Trying to allocate...");
    application_0.schedule();
    checkApplicationResourceUsage(1 * GB, application_0);

    application_1.schedule();
    checkApplicationResourceUsage(5 * GB, application_1);
   
    nodeUpdate(nm_0);
    nodeUpdate(nm_1);
   
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      assertTrue(appComparator.compare(app2, app3) < 0);
    }
   
    @Test
    public void testGetAppsInQueue() throws Exception {
      Application application_0 = new Application("user_0", "a1", resourceManager);
      application_0.submit();
     
      Application application_1 = new Application("user_0", "a2", resourceManager);
      application_1.submit();
     
      Application application_2 = new Application("user_0", "b2", resourceManager);
      application_2.submit();
     
      ResourceScheduler scheduler = resourceManager.getResourceScheduler();
     
      List<ApplicationAttemptId> appsInA1 = scheduler.getAppsInQueue("a1");
      assertEquals(1, appsInA1.size());
     
      List<ApplicationAttemptId> appsInA = scheduler.getAppsInQueue("a");
      assertTrue(appsInA.contains(application_0.getApplicationAttemptId()));
      assertTrue(appsInA.contains(application_1.getApplicationAttemptId()));
      assertEquals(2, appsInA.size());

      List<ApplicationAttemptId> appsInRoot = scheduler.getAppsInQueue("root");
      assertTrue(appsInRoot.contains(application_0.getApplicationAttemptId()));
      assertTrue(appsInRoot.contains(application_1.getApplicationAttemptId()));
      assertTrue(appsInRoot.contains(application_2.getApplicationAttemptId()));
      assertEquals(3, appsInRoot.size());
     
      Assert.assertNull(scheduler.getAppsInQueue("nonexistentqueue"));
    }
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      org.apache.hadoop.yarn.server.resourcemanager.resource.Priority.create(0);
    Priority priority_1 =
      org.apache.hadoop.yarn.server.resourcemanager.resource.Priority.create(1);
   
    // Submit an application
    Application application_0 = new Application("user_0", resourceManager);
    application_0.submit();
   
    application_0.addNodeManager(host_0, 1234, nm_0);
    application_0.addNodeManager(host_1, 1234, nm_1);

    Resource capability_0_0 = Resources.createResource(GB);
    application_0.addResourceRequestSpec(priority_1, capability_0_0);
   
    Resource capability_0_1 = Resources.createResource(2 * GB);
    application_0.addResourceRequestSpec(priority_0, capability_0_1);

    Task task_0_0 = new Task(application_0, priority_1,
        new String[] {host_0, host_1});
    application_0.addTask(task_0_0);
      
    // Submit another application
    Application application_1 = new Application("user_1", resourceManager);
    application_1.submit();
   
    application_1.addNodeManager(host_0, 1234, nm_0);
    application_1.addNodeManager(host_1, 1234, nm_1);
   
    Resource capability_1_0 = Resources.createResource(3 * GB);
    application_1.addResourceRequestSpec(priority_1, capability_1_0);
   
    Resource capability_1_1 = Resources.createResource(4 * GB);
    application_1.addResourceRequestSpec(priority_0, capability_1_1);

    Task task_1_0 = new Task(application_1, priority_1,
        new String[] {host_0, host_1});
    application_1.addTask(task_1_0);
       
    // Send resource requests to the scheduler
    LOG.info("Send resource requests to the scheduler");
    application_0.schedule();
    application_1.schedule();
   
    // Send a heartbeat to kick the tires on the Scheduler
    LOG.info("Send a heartbeat to kick the tires on the Scheduler... " +
        "nm0 -> task_0_0 and task_1_0 allocated, used=4G " +
        "nm1 -> nothing allocated");
    nm_0.heartbeat();             // task_0_0 and task_1_0 allocated, used=4G
    nm_1.heartbeat();             // nothing allocated
   
    // Get allocations from the scheduler
    application_0.schedule();     // task_0_0
    checkApplicationResourceUsage(GB, application_0);

    application_1.schedule();     // task_1_0
    checkApplicationResourceUsage(3 * GB, application_1);
   
    nm_0.heartbeat();
    nm_1.heartbeat();
   
    checkNodeResourceUsage(4*GB, nm_0);  // task_0_0 (1G) and task_1_0 (3G)
    checkNodeResourceUsage(0*GB, nm_1);  // no tasks, 2G available
   
    LOG.info("Adding new tasks...");
   
    Task task_1_1 = new Task(application_1, priority_1,
        new String[] {ResourceRequest.ANY});
    application_1.addTask(task_1_1);

    Task task_1_2 = new Task(application_1, priority_1,
        new String[] {ResourceRequest.ANY});
    application_1.addTask(task_1_2);

    Task task_1_3 = new Task(application_1, priority_0,
        new String[] {ResourceRequest.ANY});
    application_1.addTask(task_1_3);
   
    application_1.schedule();
   
    Task task_0_1 = new Task(application_0, priority_1,
        new String[] {host_0, host_1});
    application_0.addTask(task_0_1);

    Task task_0_2 = new Task(application_0, priority_1,
        new String[] {host_0, host_1});
    application_0.addTask(task_0_2);
   
    Task task_0_3 = new Task(application_0, priority_0,
        new String[] {ResourceRequest.ANY});
    application_0.addTask(task_0_3);

    application_0.schedule();

    // Send a heartbeat to kick the tires on the Scheduler
    LOG.info("Sending hb from " + nm_0.getHostName());
    nm_0.heartbeat();                   // nothing new, used=4G
   
    LOG.info("Sending hb from " + nm_1.getHostName());
    nm_1.heartbeat();                   // task_0_3, used=2G
   
    // Get allocations from the scheduler
    LOG.info("Trying to allocate...");
    application_0.schedule();
    checkApplicationResourceUsage(3 * GB, application_0);
    application_1.schedule();
    checkApplicationResourceUsage(3 * GB, application_1);
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkNodeResourceUsage(4*GB, nm_0);
    checkNodeResourceUsage(2*GB, nm_1);
   
    // Complete tasks
    LOG.info("Finishing up task_0_0");
    application_0.finishTask(task_0_0); // Now task_0_1
    application_0.schedule();
    application_1.schedule();
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkApplicationResourceUsage(3 * GB, application_0);
    checkApplicationResourceUsage(3 * GB, application_1);
    checkNodeResourceUsage(4*GB, nm_0);
    checkNodeResourceUsage(2*GB, nm_1);

    LOG.info("Finishing up task_1_0");
    application_1.finishTask(task_1_0);  // Now task_0_2
    application_0.schedule(); // final overcommit for app0 caused here
    application_1.schedule();
    nm_0.heartbeat(); // final overcommit for app0 occurs here
    nm_1.heartbeat();
    checkApplicationResourceUsage(4 * GB, application_0);
    checkApplicationResourceUsage(0 * GB, application_1);
    //checkNodeResourceUsage(1*GB, nm_0);  // final over-commit -> rm.node->1G, test.node=2G
    checkNodeResourceUsage(2*GB, nm_1);

    LOG.info("Finishing up task_0_3");
    application_0.finishTask(task_0_3); // No more
    application_0.schedule();
    application_1.schedule();
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkApplicationResourceUsage(2 * GB, application_0);
    checkApplicationResourceUsage(0 * GB, application_1);
    //checkNodeResourceUsage(2*GB, nm_0);  // final over-commit, rm.node->1G, test.node->2G
    checkNodeResourceUsage(0*GB, nm_1);
   
    LOG.info("Finishing up task_0_1");
    application_0.finishTask(task_0_1);
    application_0.schedule();
    application_1.schedule();
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkApplicationResourceUsage(1 * GB, application_0);
    checkApplicationResourceUsage(0 * GB, application_1);
   
    LOG.info("Finishing up task_0_2");
    application_0.finishTask(task_0_2); // now task_1_3 can go!
    application_0.schedule();
    application_1.schedule();
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkApplicationResourceUsage(0 * GB, application_0);
    checkApplicationResourceUsage(4 * GB, application_1);
   
    LOG.info("Finishing up task_1_3");
    application_1.finishTask(task_1_3); // now task_1_1
    application_0.schedule();
    application_1.schedule();
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkApplicationResourceUsage(0 * GB, application_0);
    checkApplicationResourceUsage(3 * GB, application_1);
   
    LOG.info("Finishing up task_1_1");
    application_1.finishTask(task_1_1);
    application_0.schedule();
    application_1.schedule();
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkApplicationResourceUsage(0 * GB, application_0);
    checkApplicationResourceUsage(3 * GB, application_1);
   
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    rm.stop();
  }
 
  @Test
  public void testGetAppsInQueue() throws Exception {
    Application application_0 = new Application("user_0", resourceManager);
    application_0.submit();
   
    Application application_1 = new Application("user_0", resourceManager);
    application_1.submit();
   
    ResourceScheduler scheduler = resourceManager.getResourceScheduler();
   
    List<ApplicationAttemptId> appsInDefault = scheduler.getAppsInQueue("default");
    assertTrue(appsInDefault.contains(application_0.getApplicationAttemptId()));
    assertTrue(appsInDefault.contains(application_1.getApplicationAttemptId()));
    assertEquals(2, appsInDefault.size());
   
    Assert.assertNull(scheduler.getAppsInQueue("someotherqueue"));
  }
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      org.apache.hadoop.yarn.server.resourcemanager.resource.Priority.create(0);
    Priority priority_1 =
      org.apache.hadoop.yarn.server.resourcemanager.resource.Priority.create(1);
   
    // Submit an application
    Application application_0 = new Application("user_0", resourceManager);
    application_0.submit();
   
    application_0.addNodeManager(host_0, 1234, nm_0);
    application_0.addNodeManager(host_1, 1234, nm_1);

    Resource capability_0_0 = Resources.createResource(GB);
    application_0.addResourceRequestSpec(priority_1, capability_0_0);
   
    Resource capability_0_1 = Resources.createResource(2 * GB);
    application_0.addResourceRequestSpec(priority_0, capability_0_1);

    Task task_0_0 = new Task(application_0, priority_1,
        new String[] {host_0, host_1});
    application_0.addTask(task_0_0);
      
    // Submit another application
    Application application_1 = new Application("user_1", resourceManager);
    application_1.submit();
   
    application_1.addNodeManager(host_0, 1234, nm_0);
    application_1.addNodeManager(host_1, 1234, nm_1);
   
    Resource capability_1_0 = Resources.createResource(3 * GB);
    application_1.addResourceRequestSpec(priority_1, capability_1_0);
   
    Resource capability_1_1 = Resources.createResource(4 * GB);
    application_1.addResourceRequestSpec(priority_0, capability_1_1);

    Task task_1_0 = new Task(application_1, priority_1,
        new String[] {host_0, host_1});
    application_1.addTask(task_1_0);
       
    // Send resource requests to the scheduler
    LOG.info("Send resource requests to the scheduler");
    application_0.schedule();
    application_1.schedule();
   
    // Send a heartbeat to kick the tires on the Scheduler
    LOG.info("Send a heartbeat to kick the tires on the Scheduler... " +
        "nm0 -> task_0_0 and task_1_0 allocated, used=4G " +
        "nm1 -> nothing allocated");
    nm_0.heartbeat();             // task_0_0 and task_1_0 allocated, used=4G
    nm_1.heartbeat();             // nothing allocated
   
    // Get allocations from the scheduler
    application_0.schedule();     // task_0_0
    checkApplicationResourceUsage(GB, application_0);

    application_1.schedule();     // task_1_0
    checkApplicationResourceUsage(3 * GB, application_1);
   
    nm_0.heartbeat();
    nm_1.heartbeat();
   
    checkNodeResourceUsage(4*GB, nm_0);  // task_0_0 (1G) and task_1_0 (3G)
    checkNodeResourceUsage(0*GB, nm_1);  // no tasks, 2G available
   
    LOG.info("Adding new tasks...");
   
    Task task_1_1 = new Task(application_1, priority_1,
        new String[] {RMNode.ANY});
    application_1.addTask(task_1_1);

    Task task_1_2 = new Task(application_1, priority_1,
        new String[] {RMNode.ANY});
    application_1.addTask(task_1_2);

    Task task_1_3 = new Task(application_1, priority_0,
        new String[] {RMNode.ANY});
    application_1.addTask(task_1_3);
   
    application_1.schedule();
   
    Task task_0_1 = new Task(application_0, priority_1,
        new String[] {host_0, host_1});
    application_0.addTask(task_0_1);

    Task task_0_2 = new Task(application_0, priority_1,
        new String[] {host_0, host_1});
    application_0.addTask(task_0_2);
   
    Task task_0_3 = new Task(application_0, priority_0,
        new String[] {RMNode.ANY});
    application_0.addTask(task_0_3);

    application_0.schedule();

    // Send a heartbeat to kick the tires on the Scheduler
    LOG.info("Sending hb from " + nm_0.getHostName());
    nm_0.heartbeat();                   // nothing new, used=4G
   
    LOG.info("Sending hb from " + nm_1.getHostName());
    nm_1.heartbeat();                   // task_0_3, used=2G
   
    // Get allocations from the scheduler
    LOG.info("Trying to allocate...");
    application_0.schedule();
    checkApplicationResourceUsage(3 * GB, application_0);
    application_1.schedule();
    checkApplicationResourceUsage(3 * GB, application_1);
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkNodeResourceUsage(4*GB, nm_0);
    checkNodeResourceUsage(2*GB, nm_1);
   
    // Complete tasks
    LOG.info("Finishing up task_0_0");
    application_0.finishTask(task_0_0); // Now task_0_1
    application_0.schedule();
    application_1.schedule();
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkApplicationResourceUsage(3 * GB, application_0);
    checkApplicationResourceUsage(3 * GB, application_1);
    checkNodeResourceUsage(4*GB, nm_0);
    checkNodeResourceUsage(2*GB, nm_1);

    LOG.info("Finishing up task_1_0");
    application_1.finishTask(task_1_0);  // Now task_0_2
    application_0.schedule(); // final overcommit for app0 caused here
    application_1.schedule();
    nm_0.heartbeat(); // final overcommit for app0 occurs here
    nm_1.heartbeat();
    checkApplicationResourceUsage(4 * GB, application_0);
    checkApplicationResourceUsage(0 * GB, application_1);
    //checkNodeResourceUsage(1*GB, nm_0);  // final over-commit -> rm.node->1G, test.node=2G
    checkNodeResourceUsage(2*GB, nm_1);

    LOG.info("Finishing up task_0_3");
    application_0.finishTask(task_0_3); // No more
    application_0.schedule();
    application_1.schedule();
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkApplicationResourceUsage(2 * GB, application_0);
    checkApplicationResourceUsage(0 * GB, application_1);
    //checkNodeResourceUsage(2*GB, nm_0);  // final over-commit, rm.node->1G, test.node->2G
    checkNodeResourceUsage(0*GB, nm_1);
   
    LOG.info("Finishing up task_0_1");
    application_0.finishTask(task_0_1);
    application_0.schedule();
    application_1.schedule();
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkApplicationResourceUsage(1 * GB, application_0);
    checkApplicationResourceUsage(0 * GB, application_1);
   
    LOG.info("Finishing up task_0_2");
    application_0.finishTask(task_0_2); // now task_1_3 can go!
    application_0.schedule();
    application_1.schedule();
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkApplicationResourceUsage(0 * GB, application_0);
    checkApplicationResourceUsage(4 * GB, application_1);
   
    LOG.info("Finishing up task_1_3");
    application_1.finishTask(task_1_3); // now task_1_1
    application_0.schedule();
    application_1.schedule();
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkApplicationResourceUsage(0 * GB, application_0);
    checkApplicationResourceUsage(3 * GB, application_1);
   
    LOG.info("Finishing up task_1_1");
    application_1.finishTask(task_1_1);
    application_0.schedule();
    application_1.schedule();
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkApplicationResourceUsage(0 * GB, application_0);
    checkApplicationResourceUsage(3 * GB, application_1);
   
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      org.apache.hadoop.yarn.server.resourcemanager.resource.Priority.create(0);
    Priority priority_1 =
      org.apache.hadoop.yarn.server.resourcemanager.resource.Priority.create(1);
   
    // Submit an application
    Application application_0 = new Application("user_0", "a1", resourceManager);
    application_0.submit();
   
    application_0.addNodeManager(host_0, 1234, nm_0);
    application_0.addNodeManager(host_1, 1234, nm_1);

    Resource capability_0_0 = Resources.createResource(1 * GB);
    application_0.addResourceRequestSpec(priority_1, capability_0_0);
   
    Resource capability_0_1 = Resources.createResource(2 * GB);
    application_0.addResourceRequestSpec(priority_0, capability_0_1);

    Task task_0_0 = new Task(application_0, priority_1,
        new String[] {host_0, host_1});
    application_0.addTask(task_0_0);
      
    // Submit another application
    Application application_1 = new Application("user_1", "b2", resourceManager);
    application_1.submit();
   
    application_1.addNodeManager(host_0, 1234, nm_0);
    application_1.addNodeManager(host_1, 1234, nm_1);
   
    Resource capability_1_0 = Resources.createResource(3 * GB);
    application_1.addResourceRequestSpec(priority_1, capability_1_0);
   
    Resource capability_1_1 = Resources.createResource(2 * GB);
    application_1.addResourceRequestSpec(priority_0, capability_1_1);

    Task task_1_0 = new Task(application_1, priority_1,
        new String[] {host_0, host_1});
    application_1.addTask(task_1_0);
       
    // Send resource requests to the scheduler
    application_0.schedule();
    application_1.schedule();

    // Send a heartbeat to kick the tires on the Scheduler
    LOG.info("Kick!");
    nm_0.heartbeat();             // task_0_0 and task_1_0 allocated, used=4G
    nm_1.heartbeat();             // nothing allocated

    // Get allocations from the scheduler
    application_0.schedule();     // task_0_0
    checkApplicationResourceUsage(1 * GB, application_0);

    application_1.schedule();     // task_1_0
    checkApplicationResourceUsage(3 * GB, application_1);
   
    nm_0.heartbeat();
    nm_1.heartbeat();
   
    checkNodeResourceUsage(4*GB, nm_0);  // task_0_0 (1G) and task_1_0 (3G)
    checkNodeResourceUsage(0*GB, nm_1);  // no tasks, 2G available

    LOG.info("Adding new tasks...");
   
    Task task_1_1 = new Task(application_1, priority_0,
        new String[] {RMNode.ANY});
    application_1.addTask(task_1_1);

    application_1.schedule();

    Task task_0_1 = new Task(application_0, priority_0,
        new String[] {host_0, host_1});
    application_0.addTask(task_0_1);

    application_0.schedule();

    // Send a heartbeat to kick the tires on the Scheduler
    LOG.info("Sending hb from " + nm_0.getHostName());
    nm_0.heartbeat();                   // nothing new, used=4G
   
    LOG.info("Sending hb from " + nm_1.getHostName());
    nm_1.heartbeat();                   // task_0_3, used=2G
   
    // Get allocations from the scheduler
    LOG.info("Trying to allocate...");
    application_0.schedule();
    checkApplicationResourceUsage(1 * GB, application_0);

    application_1.schedule();
    checkApplicationResourceUsage(5 * GB, application_1);
   
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkNodeResourceUsage(4*GB, nm_0);
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      org.apache.hadoop.yarn.server.resourcemanager.resource.Priority.create(0);
    Priority priority_1 =
      org.apache.hadoop.yarn.server.resourcemanager.resource.Priority.create(1);
   
    // Submit an application
    Application application_0 = new Application("user_0", resourceManager);
    application_0.submit();
   
    application_0.addNodeManager(host_0, 1234, nm_0);
    application_0.addNodeManager(host_1, 1234, nm_1);

    Resource capability_0_0 = Resources.createResource(GB);
    application_0.addResourceRequestSpec(priority_1, capability_0_0);
   
    Resource capability_0_1 = Resources.createResource(2 * GB);
    application_0.addResourceRequestSpec(priority_0, capability_0_1);

    Task task_0_0 = new Task(application_0, priority_1,
        new String[] {host_0, host_1});
    application_0.addTask(task_0_0);
      
    // Submit another application
    Application application_1 = new Application("user_1", resourceManager);
    application_1.submit();
   
    application_1.addNodeManager(host_0, 1234, nm_0);
    application_1.addNodeManager(host_1, 1234, nm_1);
   
    Resource capability_1_0 = Resources.createResource(3 * GB);
    application_1.addResourceRequestSpec(priority_1, capability_1_0);
   
    Resource capability_1_1 = Resources.createResource(4 * GB);
    application_1.addResourceRequestSpec(priority_0, capability_1_1);

    Task task_1_0 = new Task(application_1, priority_1,
        new String[] {host_0, host_1});
    application_1.addTask(task_1_0);
       
    // Send resource requests to the scheduler
    LOG.info("Send resource requests to the scheduler");
    application_0.schedule();
    application_1.schedule();
   
    // Send a heartbeat to kick the tires on the Scheduler
    LOG.info("Send a heartbeat to kick the tires on the Scheduler... " +
        "nm0 -> task_0_0 and task_1_0 allocated, used=4G " +
        "nm1 -> nothing allocated");
    nm_0.heartbeat();             // task_0_0 and task_1_0 allocated, used=4G
    nm_1.heartbeat();             // nothing allocated
   
    // Get allocations from the scheduler
    application_0.schedule();     // task_0_0
    checkApplicationResourceUsage(GB, application_0);

    application_1.schedule();     // task_1_0
    checkApplicationResourceUsage(3 * GB, application_1);
   
    nm_0.heartbeat();
    nm_1.heartbeat();
   
    checkNodeResourceUsage(4*GB, nm_0);  // task_0_0 (1G) and task_1_0 (3G)
    checkNodeResourceUsage(0*GB, nm_1);  // no tasks, 2G available
   
    LOG.info("Adding new tasks...");
   
    Task task_1_1 = new Task(application_1, priority_1,
        new String[] {RMNode.ANY});
    application_1.addTask(task_1_1);

    Task task_1_2 = new Task(application_1, priority_1,
        new String[] {RMNode.ANY});
    application_1.addTask(task_1_2);

    Task task_1_3 = new Task(application_1, priority_0,
        new String[] {RMNode.ANY});
    application_1.addTask(task_1_3);
   
    application_1.schedule();
   
    Task task_0_1 = new Task(application_0, priority_1,
        new String[] {host_0, host_1});
    application_0.addTask(task_0_1);

    Task task_0_2 = new Task(application_0, priority_1,
        new String[] {host_0, host_1});
    application_0.addTask(task_0_2);
   
    Task task_0_3 = new Task(application_0, priority_0,
        new String[] {RMNode.ANY});
    application_0.addTask(task_0_3);

    application_0.schedule();

    // Send a heartbeat to kick the tires on the Scheduler
    LOG.info("Sending hb from " + nm_0.getHostName());
    nm_0.heartbeat();                   // nothing new, used=4G
   
    LOG.info("Sending hb from " + nm_1.getHostName());
    nm_1.heartbeat();                   // task_0_3, used=2G
   
    // Get allocations from the scheduler
    LOG.info("Trying to allocate...");
    application_0.schedule();
    checkApplicationResourceUsage(3 * GB, application_0);
    application_1.schedule();
    checkApplicationResourceUsage(3 * GB, application_1);
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkNodeResourceUsage(4*GB, nm_0);
    checkNodeResourceUsage(2*GB, nm_1);
   
    // Complete tasks
    LOG.info("Finishing up task_0_0");
    application_0.finishTask(task_0_0); // Now task_0_1
    application_0.schedule();
    application_1.schedule();
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkApplicationResourceUsage(3 * GB, application_0);
    checkApplicationResourceUsage(3 * GB, application_1);
    checkNodeResourceUsage(4*GB, nm_0);
    checkNodeResourceUsage(2*GB, nm_1);

    LOG.info("Finishing up task_1_0");
    application_1.finishTask(task_1_0);  // Now task_0_2
    application_0.schedule(); // final overcommit for app0 caused here
    application_1.schedule();
    nm_0.heartbeat(); // final overcommit for app0 occurs here
    nm_1.heartbeat();
    checkApplicationResourceUsage(4 * GB, application_0);
    checkApplicationResourceUsage(0 * GB, application_1);
    //checkNodeResourceUsage(1*GB, nm_0);  // final over-commit -> rm.node->1G, test.node=2G
    checkNodeResourceUsage(2*GB, nm_1);

    LOG.info("Finishing up task_0_3");
    application_0.finishTask(task_0_3); // No more
    application_0.schedule();
    application_1.schedule();
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkApplicationResourceUsage(2 * GB, application_0);
    checkApplicationResourceUsage(0 * GB, application_1);
    //checkNodeResourceUsage(2*GB, nm_0);  // final over-commit, rm.node->1G, test.node->2G
    checkNodeResourceUsage(0*GB, nm_1);
   
    LOG.info("Finishing up task_0_1");
    application_0.finishTask(task_0_1);
    application_0.schedule();
    application_1.schedule();
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkApplicationResourceUsage(1 * GB, application_0);
    checkApplicationResourceUsage(0 * GB, application_1);
   
    LOG.info("Finishing up task_0_2");
    application_0.finishTask(task_0_2); // now task_1_3 can go!
    application_0.schedule();
    application_1.schedule();
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkApplicationResourceUsage(0 * GB, application_0);
    checkApplicationResourceUsage(4 * GB, application_1);
   
    LOG.info("Finishing up task_1_3");
    application_1.finishTask(task_1_3); // now task_1_1
    application_0.schedule();
    application_1.schedule();
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkApplicationResourceUsage(0 * GB, application_0);
    checkApplicationResourceUsage(3 * GB, application_1);
   
    LOG.info("Finishing up task_1_1");
    application_1.finishTask(task_1_1);
    application_0.schedule();
    application_1.schedule();
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkApplicationResourceUsage(0 * GB, application_0);
    checkApplicationResourceUsage(3 * GB, application_1);
   
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      org.apache.hadoop.yarn.server.resourcemanager.resource.Priority.create(0);
    Priority priority_1 =
      org.apache.hadoop.yarn.server.resourcemanager.resource.Priority.create(1);
   
    // Submit an application
    Application application_0 = new Application("user_0", "a1", resourceManager);
    application_0.submit();
   
    application_0.addNodeManager(host_0, 1234, nm_0);
    application_0.addNodeManager(host_1, 1234, nm_1);

    Resource capability_0_0 = Resources.createResource(1 * GB);
    application_0.addResourceRequestSpec(priority_1, capability_0_0);
   
    Resource capability_0_1 = Resources.createResource(2 * GB);
    application_0.addResourceRequestSpec(priority_0, capability_0_1);

    Task task_0_0 = new Task(application_0, priority_1,
        new String[] {host_0, host_1});
    application_0.addTask(task_0_0);
      
    // Submit another application
    Application application_1 = new Application("user_1", "b2", resourceManager);
    application_1.submit();
   
    application_1.addNodeManager(host_0, 1234, nm_0);
    application_1.addNodeManager(host_1, 1234, nm_1);
   
    Resource capability_1_0 = Resources.createResource(3 * GB);
    application_1.addResourceRequestSpec(priority_1, capability_1_0);
   
    Resource capability_1_1 = Resources.createResource(2 * GB);
    application_1.addResourceRequestSpec(priority_0, capability_1_1);

    Task task_1_0 = new Task(application_1, priority_1,
        new String[] {host_0, host_1});
    application_1.addTask(task_1_0);
       
    // Send resource requests to the scheduler
    application_0.schedule();
    application_1.schedule();

    // Send a heartbeat to kick the tires on the Scheduler
    LOG.info("Kick!");
    nm_0.heartbeat();             // task_0_0 and task_1_0 allocated, used=4G
    nm_1.heartbeat();             // nothing allocated

    // Get allocations from the scheduler
    application_0.schedule();     // task_0_0
    checkApplicationResourceUsage(1 * GB, application_0);

    application_1.schedule();     // task_1_0
    checkApplicationResourceUsage(3 * GB, application_1);
   
    nm_0.heartbeat();
    nm_1.heartbeat();
   
    checkNodeResourceUsage(4*GB, nm_0);  // task_0_0 (1G) and task_1_0 (3G)
    checkNodeResourceUsage(0*GB, nm_1);  // no tasks, 2G available

    LOG.info("Adding new tasks...");
   
    Task task_1_1 = new Task(application_1, priority_0,
        new String[] {RMNode.ANY});
    application_1.addTask(task_1_1);

    application_1.schedule();

    Task task_0_1 = new Task(application_0, priority_0,
        new String[] {host_0, host_1});
    application_0.addTask(task_0_1);

    application_0.schedule();

    // Send a heartbeat to kick the tires on the Scheduler
    LOG.info("Sending hb from " + nm_0.getHostName());
    nm_0.heartbeat();                   // nothing new, used=4G
   
    LOG.info("Sending hb from " + nm_1.getHostName());
    nm_1.heartbeat();                   // task_0_3, used=2G
   
    // Get allocations from the scheduler
    LOG.info("Trying to allocate...");
    application_0.schedule();
    checkApplicationResourceUsage(1 * GB, application_0);

    application_1.schedule();
    checkApplicationResourceUsage(5 * GB, application_1);
   
    nm_0.heartbeat();
    nm_1.heartbeat();
    checkNodeResourceUsage(4*GB, nm_0);
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