Examples with Resource org.apache.hadoop.yarn.api.records.Resource used on opensource projects

Example 36 with Resource

use of org.apache.hadoop.yarn.api.records.Resource in project hadoop by apache.

the class TestLeafQueue method testSchedulingConstraints.

@Test
public void testSchedulingConstraints() throws Exception {
    // Manipulate queue 'a'
    LeafQueue a = stubLeafQueue((LeafQueue) queues.get(A));
    // User
    String user_0 = "user_0";
    // Submit applications
    final ApplicationAttemptId appAttemptId_0 = TestUtils.getMockApplicationAttemptId(0, 0);
    FiCaSchedulerApp app_0 = new FiCaSchedulerApp(appAttemptId_0, user_0, a, mock(ActiveUsersManager.class), spyRMContext);
    a.submitApplicationAttempt(app_0, user_0);
    // Setup some nodes and racks
    String host_0_0 = "127.0.0.1";
    String rack_0 = "rack_0";
    FiCaSchedulerNode node_0_0 = TestUtils.getMockNode(host_0_0, rack_0, 0, 8 * GB);
    String host_0_1 = "127.0.0.2";
    FiCaSchedulerNode node_0_1 = TestUtils.getMockNode(host_0_1, rack_0, 0, 8 * GB);
    String host_1_0 = "127.0.0.3";
    String rack_1 = "rack_1";
    FiCaSchedulerNode node_1_0 = TestUtils.getMockNode(host_1_0, rack_1, 0, 8 * GB);
    Map<ApplicationAttemptId, FiCaSchedulerApp> apps = ImmutableMap.of(app_0.getApplicationAttemptId(), app_0);
    Map<NodeId, FiCaSchedulerNode> nodes = ImmutableMap.of(node_0_0.getNodeID(), node_0_0, node_0_1.getNodeID(), node_0_1, node_1_0.getNodeID(), node_1_0);
    final int numNodes = 3;
    Resource clusterResource = Resources.createResource(numNodes * (8 * GB), numNodes * 16);
    when(csContext.getNumClusterNodes()).thenReturn(numNodes);
    // Setup resource-requests and submit
    Priority priority = TestUtils.createMockPriority(1);
    SchedulerRequestKey schedulerKey = toSchedulerKey(priority);
    List<ResourceRequest> app_0_requests_0 = new ArrayList<ResourceRequest>();
    app_0_requests_0.add(TestUtils.createResourceRequest(host_0_0, 1 * GB, 1, true, priority, recordFactory));
    app_0_requests_0.add(TestUtils.createResourceRequest(host_0_1, 1 * GB, 1, true, priority, recordFactory));
    app_0_requests_0.add(TestUtils.createResourceRequest(rack_0, 1 * GB, 1, true, priority, recordFactory));
    app_0_requests_0.add(TestUtils.createResourceRequest(host_1_0, 1 * GB, 1, true, priority, recordFactory));
    app_0_requests_0.add(TestUtils.createResourceRequest(rack_1, 1 * GB, 1, true, priority, recordFactory));
    app_0.updateResourceRequests(app_0_requests_0);
    // Start testing...
    // Add one request
    app_0_requests_0.clear();
    app_0_requests_0.add(// only 1
    TestUtils.createResourceRequest(// only 1
    ResourceRequest.ANY, // only 1
    1 * GB, // only 1
    1, true, priority, recordFactory));
    app_0.updateResourceRequests(app_0_requests_0);
    // NODE_LOCAL - node_0_1
    CSAssignment assignment = a.assignContainers(clusterResource, node_0_0, new ResourceLimits(clusterResource), SchedulingMode.RESPECT_PARTITION_EXCLUSIVITY);
    applyCSAssignment(clusterResource, assignment, a, nodes, apps);
    verifyContainerAllocated(assignment, NodeType.NODE_LOCAL);
    assertEquals(0, app_0.getSchedulingOpportunities(schedulerKey));
    // should reset
    assertEquals(0, app_0.getOutstandingAsksCount(schedulerKey));
    // No allocation on node_1_0 even though it's node/rack local since
    // required(ANY) == 0
    assignment = a.assignContainers(clusterResource, node_1_0, new ResourceLimits(clusterResource), SchedulingMode.RESPECT_PARTITION_EXCLUSIVITY);
    applyCSAssignment(clusterResource, assignment, a, nodes, apps);
    verifyNoContainerAllocated(assignment);
    // Still zero
    // since #req=0
    assertEquals(0, app_0.getSchedulingOpportunities(schedulerKey));
    assertEquals(0, app_0.getOutstandingAsksCount(schedulerKey));
    // Add one request
    app_0_requests_0.clear();
    app_0_requests_0.add(// only one
    TestUtils.createResourceRequest(// only one
    ResourceRequest.ANY, // only one
    1 * GB, // only one
    1, true, priority, recordFactory));
    app_0.updateResourceRequests(app_0_requests_0);
    // No allocation on node_0_1 even though it's node/rack local since
    // required(rack_1) == 0
    assignment = a.assignContainers(clusterResource, node_0_1, new ResourceLimits(clusterResource), SchedulingMode.RESPECT_PARTITION_EXCLUSIVITY);
    applyCSAssignment(clusterResource, assignment, a, nodes, apps);
    verifyNoContainerAllocated(assignment);
    assertEquals(1, app_0.getSchedulingOpportunities(schedulerKey));
    assertEquals(1, app_0.getOutstandingAsksCount(schedulerKey));
    // NODE_LOCAL - node_1
    assignment = a.assignContainers(clusterResource, node_1_0, new ResourceLimits(clusterResource), SchedulingMode.RESPECT_PARTITION_EXCLUSIVITY);
    applyCSAssignment(clusterResource, assignment, a, nodes, apps);
    verifyContainerAllocated(assignment, NodeType.NODE_LOCAL);
    // should reset
    assertEquals(0, app_0.getSchedulingOpportunities(schedulerKey));
    assertEquals(0, app_0.getOutstandingAsksCount(schedulerKey));
}

Example 37 with Resource

use of org.apache.hadoop.yarn.api.records.Resource in project hadoop by apache.

the class TestLeafQueue method testSingleQueueOneUserMetrics.

@Test
public void testSingleQueueOneUserMetrics() throws Exception {
    // Manipulate queue 'a'
    LeafQueue a = stubLeafQueue((LeafQueue) queues.get(B));
    // Users
    final String user_0 = "user_0";
    // Submit applications
    final ApplicationAttemptId appAttemptId_0 = TestUtils.getMockApplicationAttemptId(0, 0);
    FiCaSchedulerApp app_0 = new FiCaSchedulerApp(appAttemptId_0, user_0, a, mock(ActiveUsersManager.class), spyRMContext);
    a.submitApplicationAttempt(app_0, user_0);
    final ApplicationAttemptId appAttemptId_1 = TestUtils.getMockApplicationAttemptId(1, 0);
    FiCaSchedulerApp app_1 = new FiCaSchedulerApp(appAttemptId_1, user_0, a, mock(ActiveUsersManager.class), spyRMContext);
    // same user
    a.submitApplicationAttempt(app_1, user_0);
    // Setup some nodes
    String host_0 = "127.0.0.1";
    FiCaSchedulerNode node_0 = TestUtils.getMockNode(host_0, DEFAULT_RACK, 0, 8 * GB);
    Map<ApplicationAttemptId, FiCaSchedulerApp> apps = ImmutableMap.of(app_0.getApplicationAttemptId(), app_0, app_1.getApplicationAttemptId(), app_1);
    Map<NodeId, FiCaSchedulerNode> nodes = ImmutableMap.of(node_0.getNodeID(), node_0);
    final int numNodes = 1;
    Resource clusterResource = Resources.createResource(numNodes * (8 * GB), numNodes * 16);
    when(csContext.getNumClusterNodes()).thenReturn(numNodes);
    // Setup resource-requests
    Priority priority = TestUtils.createMockPriority(1);
    app_0.updateResourceRequests(Collections.singletonList(TestUtils.createResourceRequest(ResourceRequest.ANY, 1 * GB, 3, true, priority, recordFactory)));
    // Start testing...
    // Only 1 container
    applyCSAssignment(clusterResource, a.assignContainers(clusterResource, node_0, new ResourceLimits(clusterResource), SchedulingMode.RESPECT_PARTITION_EXCLUSIVITY), a, nodes, apps);
    assertEquals((int) (node_0.getTotalResource().getMemorySize() * a.getCapacity()) - (1 * GB), a.getMetrics().getAvailableMB());
}

Example 38 with Resource

use of org.apache.hadoop.yarn.api.records.Resource in project hadoop by apache.

the class TestLeafQueue method testDRFUsageRatioRounding.

@Test
public void testDRFUsageRatioRounding() throws Exception {
    CSAssignment assign;
    setUpWithDominantResourceCalculator();
    // Mock the queue
    LeafQueue b = stubLeafQueue((LeafQueue) queues.get(E));
    // Users
    final String user0 = "user_0";
    // Submit applications
    final ApplicationAttemptId appAttemptId0 = TestUtils.getMockApplicationAttemptId(0, 0);
    FiCaSchedulerApp app0 = new FiCaSchedulerApp(appAttemptId0, user0, b, b.getAbstractUsersManager(), spyRMContext);
    b.submitApplicationAttempt(app0, user0);
    // Setup some nodes
    String host0 = "127.0.0.1";
    FiCaSchedulerNode node0 = TestUtils.getMockNode(host0, DEFAULT_RACK, 0, 80 * GB, 100);
    // Make cluster relatively large so usageRatios are small
    int numNodes = 1000;
    Resource clusterResource = Resources.createResource(numNodes * (80 * GB), numNodes * 100);
    when(csContext.getNumClusterNodes()).thenReturn(numNodes);
    // Set user-limit. Need a small queue within a large cluster.
    b.setUserLimit(50);
    b.setUserLimitFactor(1000000);
    b.setMaxCapacity(1.0f);
    b.setAbsoluteCapacity(0.00001f);
    // First allocation is larger than second but is still vcore dominant
    // so usage ratio will be based on vcores. If consumedRatio doesn't round
    // in our favor then new limit calculation will actually be less than
    // what is currently consumed and we will fail to allocate
    Priority priority = TestUtils.createMockPriority(1);
    app0.updateResourceRequests(Collections.singletonList(TestUtils.createResourceRequest(ResourceRequest.ANY, 20 * GB, 29, 1, true, priority, recordFactory, RMNodeLabelsManager.NO_LABEL)));
    assign = b.assignContainers(clusterResource, node0, new ResourceLimits(clusterResource), SchedulingMode.RESPECT_PARTITION_EXCLUSIVITY);
    app0.updateResourceRequests(Collections.singletonList(TestUtils.createResourceRequest(ResourceRequest.ANY, 10 * GB, 29, 2, true, priority, recordFactory, RMNodeLabelsManager.NO_LABEL)));
    assign = b.assignContainers(clusterResource, node0, new ResourceLimits(clusterResource), SchedulingMode.RESPECT_PARTITION_EXCLUSIVITY);
    assertTrue("Still within limits, should assign", assign.getResource().getMemorySize() > 0);
}

Example 39 with Resource

use of org.apache.hadoop.yarn.api.records.Resource in project hadoop by apache.

the class TestLeafQueue method testLocalityScheduling.

@Test
public void testLocalityScheduling() throws Exception {
    // Manipulate queue 'b'
    LeafQueue a = stubLeafQueue((LeafQueue) queues.get(B));
    // User
    String user_0 = "user_0";
    // Submit applications
    final ApplicationAttemptId appAttemptId_0 = TestUtils.getMockApplicationAttemptId(0, 0);
    FiCaSchedulerApp app_0 = new FiCaSchedulerApp(appAttemptId_0, user_0, a, mock(ActiveUsersManager.class), spyRMContext);
    a.submitApplicationAttempt(app_0, user_0);
    // Setup some nodes and racks
    String host_0 = "127.0.0.1";
    String rack_0 = "rack_0";
    FiCaSchedulerNode node_0 = TestUtils.getMockNode(host_0, rack_0, 0, 8 * GB);
    String host_1 = "127.0.0.2";
    String rack_1 = "rack_1";
    FiCaSchedulerNode node_1 = TestUtils.getMockNode(host_1, rack_1, 0, 8 * GB);
    String host_2 = "127.0.0.3";
    String rack_2 = "rack_2";
    FiCaSchedulerNode node_2 = TestUtils.getMockNode(host_2, rack_2, 0, 8 * GB);
    // on rack_1
    String host_3 = "127.0.0.4";
    FiCaSchedulerNode node_3 = TestUtils.getMockNode(host_3, rack_1, 0, 8 * GB);
    Map<ApplicationAttemptId, FiCaSchedulerApp> apps = ImmutableMap.of(app_0.getApplicationAttemptId(), app_0);
    Map<NodeId, FiCaSchedulerNode> nodes = ImmutableMap.of(node_0.getNodeID(), node_0, node_1.getNodeID(), node_1, node_2.getNodeID(), node_2, node_3.getNodeID(), node_3);
    final int numNodes = 3;
    Resource clusterResource = Resources.createResource(numNodes * (8 * GB), numNodes * 16);
    when(csContext.getNumClusterNodes()).thenReturn(numNodes);
    // Setup resource-requests and submit
    Priority priority = TestUtils.createMockPriority(1);
    List<ResourceRequest> app_0_requests_0 = new ArrayList<ResourceRequest>();
    app_0_requests_0.add(TestUtils.createResourceRequest(host_0, 1 * GB, 1, true, priority, recordFactory));
    app_0_requests_0.add(TestUtils.createResourceRequest(rack_0, 1 * GB, 1, true, priority, recordFactory));
    app_0_requests_0.add(TestUtils.createResourceRequest(host_1, 1 * GB, 1, true, priority, recordFactory));
    app_0_requests_0.add(TestUtils.createResourceRequest(rack_1, 1 * GB, 1, true, priority, recordFactory));
    app_0_requests_0.add(// one extra
    TestUtils.createResourceRequest(// one extra
    ResourceRequest.ANY, // one extra
    1 * GB, // one extra
    3, true, priority, recordFactory));
    app_0.updateResourceRequests(app_0_requests_0);
    // Start testing...
    CSAssignment assignment = null;
    SchedulerRequestKey schedulerKey = toSchedulerKey(priority);
    // Start with off switch, shouldn't allocate due to delay scheduling
    assignment = a.assignContainers(clusterResource, node_2, new ResourceLimits(clusterResource), SchedulingMode.RESPECT_PARTITION_EXCLUSIVITY);
    applyCSAssignment(clusterResource, assignment, a, nodes, apps);
    verifyNoContainerAllocated(assignment);
    assertEquals(1, app_0.getSchedulingOpportunities(schedulerKey));
    assertEquals(3, app_0.getOutstandingAsksCount(schedulerKey));
    // None->NODE_LOCAL
    assertEquals(NodeType.NODE_LOCAL, assignment.getType());
    // Another off switch, shouldn't allocate due to delay scheduling
    assignment = a.assignContainers(clusterResource, node_2, new ResourceLimits(clusterResource), SchedulingMode.RESPECT_PARTITION_EXCLUSIVITY);
    applyCSAssignment(clusterResource, assignment, a, nodes, apps);
    verifyNoContainerAllocated(assignment);
    assertEquals(2, app_0.getSchedulingOpportunities(schedulerKey));
    assertEquals(3, app_0.getOutstandingAsksCount(schedulerKey));
    // None->NODE_LOCAL
    assertEquals(NodeType.NODE_LOCAL, assignment.getType());
    // Another off switch, shouldn't allocate due to delay scheduling
    assignment = a.assignContainers(clusterResource, node_2, new ResourceLimits(clusterResource), SchedulingMode.RESPECT_PARTITION_EXCLUSIVITY);
    applyCSAssignment(clusterResource, assignment, a, nodes, apps);
    verifyNoContainerAllocated(assignment);
    assertEquals(3, app_0.getSchedulingOpportunities(schedulerKey));
    assertEquals(3, app_0.getOutstandingAsksCount(schedulerKey));
    // None->NODE_LOCAL
    assertEquals(NodeType.NODE_LOCAL, assignment.getType());
    // Another off switch, now we should allocate 
    // since missedOpportunities=3 and reqdContainers=3
    assignment = a.assignContainers(clusterResource, node_2, new ResourceLimits(clusterResource), SchedulingMode.RESPECT_PARTITION_EXCLUSIVITY);
    applyCSAssignment(clusterResource, assignment, a, nodes, apps);
    verifyContainerAllocated(assignment, NodeType.OFF_SWITCH);
    // should NOT reset
    assertEquals(4, app_0.getSchedulingOpportunities(schedulerKey));
    assertEquals(2, app_0.getOutstandingAsksCount(schedulerKey));
    // NODE_LOCAL - node_0
    assignment = a.assignContainers(clusterResource, node_0, new ResourceLimits(clusterResource), SchedulingMode.RESPECT_PARTITION_EXCLUSIVITY);
    applyCSAssignment(clusterResource, assignment, a, nodes, apps);
    verifyContainerAllocated(assignment, NodeType.NODE_LOCAL);
    // should reset
    assertEquals(0, app_0.getSchedulingOpportunities(schedulerKey));
    assertEquals(1, app_0.getOutstandingAsksCount(schedulerKey));
    // NODE_LOCAL - node_1
    assignment = a.assignContainers(clusterResource, node_1, new ResourceLimits(clusterResource), SchedulingMode.RESPECT_PARTITION_EXCLUSIVITY);
    applyCSAssignment(clusterResource, assignment, a, nodes, apps);
    verifyContainerAllocated(assignment, NodeType.NODE_LOCAL);
    // should reset
    assertEquals(0, app_0.getSchedulingOpportunities(schedulerKey));
    assertEquals(0, app_0.getOutstandingAsksCount(schedulerKey));
    assertEquals(NodeType.NODE_LOCAL, assignment.getType());
    // Add 1 more request to check for RACK_LOCAL
    app_0_requests_0.clear();
    app_0_requests_0.add(TestUtils.createResourceRequest(host_1, 1 * GB, 1, true, priority, recordFactory));
    app_0_requests_0.add(TestUtils.createResourceRequest(rack_1, 1 * GB, 3, true, priority, recordFactory));
    app_0_requests_0.add(// one extra
    TestUtils.createResourceRequest(// one extra
    ResourceRequest.ANY, // one extra
    1 * GB, // one extra
    4, true, priority, recordFactory));
    app_0.updateResourceRequests(app_0_requests_0);
    assertEquals(4, app_0.getOutstandingAsksCount(schedulerKey));
    // Rack-delay
    doReturn(true).when(a).getRackLocalityFullReset();
    doReturn(1).when(a).getNodeLocalityDelay();
    // Shouldn't assign RACK_LOCAL yet
    assignment = a.assignContainers(clusterResource, node_3, new ResourceLimits(clusterResource), SchedulingMode.RESPECT_PARTITION_EXCLUSIVITY);
    applyCSAssignment(clusterResource, assignment, a, nodes, apps);
    assertEquals(1, app_0.getSchedulingOpportunities(schedulerKey));
    assertEquals(4, app_0.getOutstandingAsksCount(schedulerKey));
    // Should assign RACK_LOCAL now
    assignment = a.assignContainers(clusterResource, node_3, new ResourceLimits(clusterResource), SchedulingMode.RESPECT_PARTITION_EXCLUSIVITY);
    applyCSAssignment(clusterResource, assignment, a, nodes, apps);
    verifyContainerAllocated(assignment, NodeType.RACK_LOCAL);
    // should reset
    assertEquals(0, app_0.getSchedulingOpportunities(schedulerKey));
    assertEquals(3, app_0.getOutstandingAsksCount(schedulerKey));
    // Shouldn't assign RACK_LOCAL because schedulingOpportunities should have gotten reset.
    assignment = a.assignContainers(clusterResource, node_3, new ResourceLimits(clusterResource), SchedulingMode.RESPECT_PARTITION_EXCLUSIVITY);
    applyCSAssignment(clusterResource, assignment, a, nodes, apps);
    assertEquals(1, app_0.getSchedulingOpportunities(schedulerKey));
    assertEquals(3, app_0.getOutstandingAsksCount(schedulerKey));
    // Next time we schedule RACK_LOCAL, don't reset
    doReturn(false).when(a).getRackLocalityFullReset();
    // Should assign RACK_LOCAL now
    assignment = a.assignContainers(clusterResource, node_3, new ResourceLimits(clusterResource), SchedulingMode.RESPECT_PARTITION_EXCLUSIVITY);
    applyCSAssignment(clusterResource, assignment, a, nodes, apps);
    verifyContainerAllocated(assignment, NodeType.RACK_LOCAL);
    // should NOT reset
    assertEquals(2, app_0.getSchedulingOpportunities(schedulerKey));
    assertEquals(2, app_0.getOutstandingAsksCount(schedulerKey));
    // Another RACK_LOCAL since schedulingOpportunities not reset
    assignment = a.assignContainers(clusterResource, node_3, new ResourceLimits(clusterResource), SchedulingMode.RESPECT_PARTITION_EXCLUSIVITY);
    applyCSAssignment(clusterResource, assignment, a, nodes, apps);
    verifyContainerAllocated(assignment, NodeType.RACK_LOCAL);
    // should NOT reset
    assertEquals(3, app_0.getSchedulingOpportunities(schedulerKey));
    assertEquals(1, app_0.getOutstandingAsksCount(schedulerKey));
    // Add a request larger than cluster size to verify
    // OFF_SWITCH delay is capped by cluster size
    app_0.resetSchedulingOpportunities(schedulerKey);
    app_0_requests_0.clear();
    app_0_requests_0.add(TestUtils.createResourceRequest(host_0, 1 * GB, 100, true, priority, recordFactory));
    app_0_requests_0.add(TestUtils.createResourceRequest(rack_0, 1 * GB, 100, true, priority, recordFactory));
    app_0_requests_0.add(TestUtils.createResourceRequest(ResourceRequest.ANY, 1 * GB, 100, true, priority, recordFactory));
    app_0.updateResourceRequests(app_0_requests_0);
    // Start with off switch. 3 nodes in cluster so shouldn't allocate first 3
    for (int i = 0; i < numNodes; i++) {
        assignment = a.assignContainers(clusterResource, node_2, new ResourceLimits(clusterResource), SchedulingMode.RESPECT_PARTITION_EXCLUSIVITY);
        applyCSAssignment(clusterResource, assignment, a, nodes, apps);
        verifyNoContainerAllocated(assignment);
        assertEquals(i + 1, app_0.getSchedulingOpportunities(schedulerKey));
    }
    // delay should be capped at numNodes so next one should allocate
    assignment = a.assignContainers(clusterResource, node_2, new ResourceLimits(clusterResource), SchedulingMode.RESPECT_PARTITION_EXCLUSIVITY);
    applyCSAssignment(clusterResource, assignment, a, nodes, apps);
    verifyContainerAllocated(assignment, NodeType.OFF_SWITCH);
    assertEquals(numNodes + 1, app_0.getSchedulingOpportunities(schedulerKey));
}

Example 40 with Resource

use of org.apache.hadoop.yarn.api.records.Resource in project hadoop by apache.

the class TestLeafQueue method testApplicationPriorityScheduling.

@Test
public void testApplicationPriorityScheduling() throws Exception {
    // Manipulate queue 'a'
    LeafQueue a = stubLeafQueue((LeafQueue) queues.get(A));
    // User
    String user_0 = "user_0";
    // Submit applications
    final ApplicationAttemptId appAttemptId_0 = TestUtils.getMockApplicationAttemptId(0, 0);
    FiCaSchedulerApp app_0 = new FiCaSchedulerApp(appAttemptId_0, user_0, a, mock(ActiveUsersManager.class), spyRMContext);
    a.submitApplicationAttempt(app_0, user_0);
    // Setup some nodes and racks
    String host_0 = "127.0.0.1";
    String rack_0 = "rack_0";
    FiCaSchedulerNode node_0 = TestUtils.getMockNode(host_0, rack_0, 0, 8 * GB);
    String host_1 = "127.0.0.2";
    String rack_1 = "rack_1";
    FiCaSchedulerNode node_1 = TestUtils.getMockNode(host_1, rack_1, 0, 8 * GB);
    String host_2 = "127.0.0.3";
    String rack_2 = "rack_2";
    FiCaSchedulerNode node_2 = TestUtils.getMockNode(host_2, rack_2, 0, 8 * GB);
    Map<ApplicationAttemptId, FiCaSchedulerApp> apps = ImmutableMap.of(app_0.getApplicationAttemptId(), app_0);
    Map<NodeId, FiCaSchedulerNode> nodes = ImmutableMap.of(node_0.getNodeID(), node_0, node_1.getNodeID(), node_1, node_2.getNodeID(), node_2);
    final int numNodes = 3;
    Resource clusterResource = Resources.createResource(numNodes * (8 * GB), 1);
    when(csContext.getNumClusterNodes()).thenReturn(numNodes);
    // Setup resource-requests and submit
    List<ResourceRequest> app_0_requests_0 = new ArrayList<ResourceRequest>();
    // P1
    Priority priority_1 = TestUtils.createMockPriority(1);
    SchedulerRequestKey schedulerKey1 = toSchedulerKey(priority_1);
    app_0_requests_0.add(TestUtils.createResourceRequest(host_0, 1 * GB, 1, true, priority_1, recordFactory));
    app_0_requests_0.add(TestUtils.createResourceRequest(rack_0, 1 * GB, 1, true, priority_1, recordFactory));
    app_0_requests_0.add(TestUtils.createResourceRequest(host_1, 1 * GB, 1, true, priority_1, recordFactory));
    app_0_requests_0.add(TestUtils.createResourceRequest(rack_1, 1 * GB, 1, true, priority_1, recordFactory));
    app_0_requests_0.add(TestUtils.createResourceRequest(ResourceRequest.ANY, 1 * GB, 2, true, priority_1, recordFactory));
    // P2
    Priority priority_2 = TestUtils.createMockPriority(2);
    SchedulerRequestKey schedulerKey2 = toSchedulerKey(priority_2);
    app_0_requests_0.add(TestUtils.createResourceRequest(host_2, 2 * GB, 1, true, priority_2, recordFactory));
    app_0_requests_0.add(TestUtils.createResourceRequest(rack_2, 2 * GB, 1, true, priority_2, recordFactory));
    app_0_requests_0.add(TestUtils.createResourceRequest(ResourceRequest.ANY, 2 * GB, 1, true, priority_2, recordFactory));
    app_0.updateResourceRequests(app_0_requests_0);
    // Start testing...
    // Start with off switch, shouldn't allocate P1 due to delay scheduling
    // thus, no P2 either!
    CSAssignment assignment = a.assignContainers(clusterResource, node_2, new ResourceLimits(clusterResource), SchedulingMode.RESPECT_PARTITION_EXCLUSIVITY);
    applyCSAssignment(clusterResource, assignment, a, nodes, apps);
    verifyNoContainerAllocated(assignment);
    assertEquals(1, app_0.getSchedulingOpportunities(schedulerKey1));
    assertEquals(2, app_0.getOutstandingAsksCount(schedulerKey1));
    assertEquals(0, app_0.getSchedulingOpportunities(schedulerKey2));
    assertEquals(1, app_0.getOutstandingAsksCount(schedulerKey2));
    // Another off-switch, shouldn't allocate P1 due to delay scheduling
    // thus, no P2 either!
    assignment = a.assignContainers(clusterResource, node_2, new ResourceLimits(clusterResource), SchedulingMode.RESPECT_PARTITION_EXCLUSIVITY);
    applyCSAssignment(clusterResource, assignment, a, nodes, apps);
    verifyNoContainerAllocated(assignment);
    assertEquals(2, app_0.getSchedulingOpportunities(schedulerKey1));
    assertEquals(2, app_0.getOutstandingAsksCount(schedulerKey1));
    assertEquals(0, app_0.getSchedulingOpportunities(schedulerKey2));
    assertEquals(1, app_0.getOutstandingAsksCount(schedulerKey2));
    // Another off-switch, shouldn't allocate OFF_SWITCH P1
    assignment = a.assignContainers(clusterResource, node_2, new ResourceLimits(clusterResource), SchedulingMode.RESPECT_PARTITION_EXCLUSIVITY);
    applyCSAssignment(clusterResource, assignment, a, nodes, apps);
    verifyContainerAllocated(assignment, NodeType.OFF_SWITCH);
    assertEquals(3, app_0.getSchedulingOpportunities(schedulerKey1));
    assertEquals(1, app_0.getOutstandingAsksCount(schedulerKey1));
    assertEquals(0, app_0.getSchedulingOpportunities(schedulerKey2));
    assertEquals(1, app_0.getOutstandingAsksCount(schedulerKey2));
    // Now, DATA_LOCAL for P1
    assignment = a.assignContainers(clusterResource, node_0, new ResourceLimits(clusterResource), SchedulingMode.RESPECT_PARTITION_EXCLUSIVITY);
    applyCSAssignment(clusterResource, assignment, a, nodes, apps);
    verifyContainerAllocated(assignment, NodeType.NODE_LOCAL);
    assertEquals(0, app_0.getSchedulingOpportunities(schedulerKey1));
    assertEquals(0, app_0.getOutstandingAsksCount(schedulerKey1));
    assertEquals(0, app_0.getSchedulingOpportunities(schedulerKey2));
    assertEquals(1, app_0.getOutstandingAsksCount(schedulerKey2));
    // Now, OFF_SWITCH for P2
    assignment = a.assignContainers(clusterResource, node_1, new ResourceLimits(clusterResource), SchedulingMode.RESPECT_PARTITION_EXCLUSIVITY);
    applyCSAssignment(clusterResource, assignment, a, nodes, apps);
    verifyContainerAllocated(assignment, NodeType.OFF_SWITCH);
    assertEquals(0, app_0.getSchedulingOpportunities(schedulerKey1));
    assertEquals(0, app_0.getOutstandingAsksCount(schedulerKey1));
    assertEquals(1, app_0.getSchedulingOpportunities(schedulerKey2));
    assertEquals(0, app_0.getOutstandingAsksCount(schedulerKey2));
}