Examples with StormMetricsRegistry org.apache.storm.metric.StormMetricsRegistry used on opensource projects

Example 81 with StormMetricsRegistry

use of org.apache.storm.metric.StormMetricsRegistry in project storm by apache.

the class SlotTest method testResourcesChangedFiltered.

@Test
public void testResourcesChangedFiltered() throws Exception {
    try (SimulatedTime t = new SimulatedTime(1010)) {
        int port = 8080;
        String cTopoId = "CURRENT";
        List<ExecutorInfo> cExecList = mkExecutorInfoList(1, 2, 3, 4, 5);
        LocalAssignment cAssignment = mkLocalAssignment(cTopoId, cExecList, mkWorkerResources(100.0, 100.0, 100.0));
        String otherTopoId = "OTHER";
        LocalAssignment otherAssignment = mkLocalAssignment(otherTopoId, cExecList, mkWorkerResources(100.0, 100.0, 100.0));
        BlobChangingCallback cb = mock(BlobChangingCallback.class);
        Container cContainer = mock(Container.class);
        LSWorkerHeartbeat chb = mkWorkerHB(cTopoId, port, cExecList, Time.currentTimeSecs());
        when(cContainer.readHeartbeat()).thenReturn(chb);
        when(cContainer.areAllProcessesDead()).thenReturn(false, false, true);
        AsyncLocalizer localizer = mock(AsyncLocalizer.class);
        Container nContainer = mock(Container.class);
        LocalState state = mock(LocalState.class);
        ContainerLauncher containerLauncher = mock(ContainerLauncher.class);
        when(containerLauncher.launchContainer(port, cAssignment, state)).thenReturn(nContainer);
        when(nContainer.readHeartbeat()).thenReturn(chb, chb);
        ISupervisor iSuper = mock(ISupervisor.class);
        long heartbeatTimeoutMs = 5000;
        StaticState staticState = new StaticState(localizer, heartbeatTimeoutMs, 120_000, 1000, 1000, containerLauncher, "localhost", port, iSuper, state, cb, null, null, new SlotMetrics(new StormMetricsRegistry()));
        Set<Slot.BlobChanging> changing = new HashSet<>();
        LocallyCachedBlob stormJar = mock(LocallyCachedBlob.class);
        GoodToGo.GoodToGoLatch stormJarLatch = mock(GoodToGo.GoodToGoLatch.class);
        CompletableFuture<Void> stormJarLatchFuture = mock(CompletableFuture.class);
        when(stormJarLatch.countDown()).thenReturn(stormJarLatchFuture);
        changing.add(new Slot.BlobChanging(cAssignment, stormJar, stormJarLatch));
        Set<Slot.BlobChanging> desired = new HashSet<>(changing);
        LocallyCachedBlob otherJar = mock(LocallyCachedBlob.class);
        GoodToGo.GoodToGoLatch otherJarLatch = mock(GoodToGo.GoodToGoLatch.class);
        changing.add(new Slot.BlobChanging(otherAssignment, otherJar, otherJarLatch));
        SlotMetrics slotMetrics = new SlotMetrics(new StormMetricsRegistry());
        DynamicState dynamicState = new DynamicState(cAssignment, cContainer, cAssignment, slotMetrics).withChangingBlobs(changing);
        DynamicState nextState = Slot.stateMachineStep(dynamicState, staticState);
        assertEquals(MachineState.KILL_BLOB_UPDATE, nextState.state);
        verify(iSuper).killedWorker(port);
        verify(cContainer).kill();
        verify(localizer, never()).requestDownloadTopologyBlobs(any(), anyInt(), any());
        verify(stormJarLatch, never()).countDown();
        verify(otherJarLatch, times(1)).countDown();
        assertNull(nextState.pendingDownload);
        assertNull(nextState.pendingLocalization);
        assertEquals(desired, nextState.changingBlobs);
        assertTrue(nextState.pendingChangingBlobs.isEmpty());
        assertNull(nextState.pendingChangingBlobsAssignment);
        assertThat(Time.currentTimeMillis(), greaterThan(1000L));
        nextState = Slot.stateMachineStep(nextState, staticState);
        assertEquals(MachineState.KILL_BLOB_UPDATE, nextState.state);
        verify(cContainer).forceKill();
        assertNull(nextState.pendingDownload);
        assertNull(nextState.pendingLocalization);
        assertEquals(desired, nextState.changingBlobs);
        assertTrue(nextState.pendingChangingBlobs.isEmpty());
        assertNull(nextState.pendingChangingBlobsAssignment);
        assertThat(Time.currentTimeMillis(), greaterThan(2000L));
        nextState = Slot.stateMachineStep(nextState, staticState);
        assertEquals(MachineState.WAITING_FOR_BLOB_UPDATE, nextState.state);
        verify(cContainer).cleanUp();
        assertThat(Time.currentTimeMillis(), greaterThan(2000L));
        nextState = Slot.stateMachineStep(nextState, staticState);
        verify(stormJarLatchFuture).get(anyLong(), any());
        verify(containerLauncher).launchContainer(port, cAssignment, state);
        assertEquals(MachineState.WAITING_FOR_WORKER_START, nextState.state);
        assertNull(nextState.pendingChangingBlobsAssignment);
        assertTrue(nextState.pendingChangingBlobs.isEmpty());
        assertSame(cAssignment, nextState.currentAssignment);
        assertSame(nContainer, nextState.container);
        assertThat(Time.currentTimeMillis(), greaterThan(2000L));
        assertThat(Time.currentTimeMillis(), lessThan(heartbeatTimeoutMs));
        nextState = Slot.stateMachineStep(nextState, staticState);
        assertEquals(MachineState.RUNNING, nextState.state);
        assertNull(nextState.pendingChangingBlobsAssignment);
        assertTrue(nextState.pendingChangingBlobs.isEmpty());
        assertSame(cAssignment, nextState.currentAssignment);
        assertSame(nContainer, nextState.container);
        assertTrue(Time.currentTimeMillis() > 2000);
        nextState = Slot.stateMachineStep(nextState, staticState);
        assertEquals(MachineState.RUNNING, nextState.state);
        assertNull(nextState.pendingChangingBlobsAssignment);
        assertTrue(nextState.pendingChangingBlobs.isEmpty());
        assertSame(cAssignment, nextState.currentAssignment);
        assertSame(nContainer, nextState.container);
        assertTrue(Time.currentTimeMillis() > 3000);
        nextState = Slot.stateMachineStep(nextState, staticState);
        assertEquals(MachineState.RUNNING, nextState.state);
        assertNull(nextState.pendingChangingBlobsAssignment);
        assertTrue(nextState.pendingChangingBlobs.isEmpty());
        assertSame(cAssignment, nextState.currentAssignment);
        assertSame(nContainer, nextState.container);
        assertTrue(Time.currentTimeMillis() > 4000);
    }
}

Example 82 with StormMetricsRegistry

use of org.apache.storm.metric.StormMetricsRegistry in project storm by apache.

the class SlotTest method testErrorHandlingWhenLocalizationFails.

@Test
public void testErrorHandlingWhenLocalizationFails() throws Exception {
    try (SimulatedTime t = new SimulatedTime(1010)) {
        int port = 8080;
        String topoId = "NEW";
        List<ExecutorInfo> execList = mkExecutorInfoList(1, 2, 3, 4, 5);
        LocalAssignment newAssignment = mkLocalAssignment(topoId, execList, mkWorkerResources(100.0, 100.0, 100.0));
        AsyncLocalizer localizer = mock(AsyncLocalizer.class);
        BlobChangingCallback cb = mock(BlobChangingCallback.class);
        Container container = mock(Container.class);
        LocalState state = mock(LocalState.class);
        ContainerLauncher containerLauncher = mock(ContainerLauncher.class);
        when(containerLauncher.launchContainer(port, newAssignment, state)).thenReturn(container);
        LSWorkerHeartbeat hb = mkWorkerHB(topoId, port, execList, Time.currentTimeSecs());
        when(container.readHeartbeat()).thenReturn(hb, hb);
        @SuppressWarnings("unchecked") CompletableFuture<Void> blobFuture = mock(CompletableFuture.class);
        CompletableFuture<Void> secondBlobFuture = mock(CompletableFuture.class);
        when(secondBlobFuture.get(anyLong(), any())).thenThrow(new ExecutionException(new RuntimeException("Localization failure")));
        CompletableFuture<Void> thirdBlobFuture = mock(CompletableFuture.class);
        when(localizer.requestDownloadTopologyBlobs(newAssignment, port, cb)).thenReturn(blobFuture).thenReturn(secondBlobFuture).thenReturn(thirdBlobFuture);
        ISupervisor iSuper = mock(ISupervisor.class);
        SlotMetrics slotMetrics = new SlotMetrics(new StormMetricsRegistry());
        StaticState staticState = new StaticState(localizer, 5000, 120000, 1000, 1000, containerLauncher, "localhost", port, iSuper, state, cb, null, null, slotMetrics);
        DynamicState dynamicState = new DynamicState(null, null, null, slotMetrics).withNewAssignment(newAssignment);
        DynamicState nextState = Slot.stateMachineStep(dynamicState, staticState);
        verify(localizer).requestDownloadTopologyBlobs(newAssignment, port, cb);
        assertEquals(MachineState.WAITING_FOR_BLOB_LOCALIZATION, nextState.state);
        assertSame("pendingDownload not set properly", blobFuture, nextState.pendingDownload);
        assertEquals(newAssignment, nextState.pendingLocalization);
        assertEquals(0, Time.currentTimeMillis());
        // Assignment has changed
        nextState = Slot.stateMachineStep(nextState.withNewAssignment(null), staticState);
        assertThat(nextState.state, is(MachineState.EMPTY));
        assertThat(nextState.pendingChangingBlobs, is(Collections.emptySet()));
        assertThat(nextState.pendingChangingBlobsAssignment, nullValue());
        assertThat(nextState.pendingLocalization, nullValue());
        assertThat(nextState.pendingDownload, nullValue());
        clearInvocations(localizer);
        nextState = Slot.stateMachineStep(dynamicState.withNewAssignment(newAssignment), staticState);
        verify(localizer).requestDownloadTopologyBlobs(newAssignment, port, cb);
        assertEquals(MachineState.WAITING_FOR_BLOB_LOCALIZATION, nextState.state);
        assertSame("pendingDownload not set properly", secondBlobFuture, nextState.pendingDownload);
        assertEquals(newAssignment, nextState.pendingLocalization);
        // Error occurs, but assignment has not changed
        clearInvocations(localizer);
        nextState = Slot.stateMachineStep(nextState, staticState);
        verify(localizer).requestDownloadTopologyBlobs(newAssignment, port, cb);
        assertEquals(MachineState.WAITING_FOR_BLOB_LOCALIZATION, nextState.state);
        assertSame("pendingDownload not set properly", thirdBlobFuture, nextState.pendingDownload);
        assertEquals(newAssignment, nextState.pendingLocalization);
        assertThat(Time.currentTimeMillis(), greaterThan(3L));
        nextState = Slot.stateMachineStep(nextState, staticState);
        verify(thirdBlobFuture).get(1000, TimeUnit.MILLISECONDS);
        verify(containerLauncher).launchContainer(port, newAssignment, state);
        assertEquals(MachineState.WAITING_FOR_WORKER_START, nextState.state);
        assertSame("pendingDownload is not null", null, nextState.pendingDownload);
        assertSame(null, nextState.pendingLocalization);
        assertSame(newAssignment, nextState.currentAssignment);
        assertSame(container, nextState.container);
    }
}

Example 83 with StormMetricsRegistry

use of org.apache.storm.metric.StormMetricsRegistry in project storm by apache.

the class SlotTest method testRelaunch.

@Test
public void testRelaunch() throws Exception {
    try (SimulatedTime t = new SimulatedTime(1010)) {
        int port = 8080;
        String topoId = "CURRENT";
        List<ExecutorInfo> execList = mkExecutorInfoList(1, 2, 3, 4, 5);
        LocalAssignment assignment = mkLocalAssignment(topoId, execList, mkWorkerResources(100.0, 100.0, 100.0));
        AsyncLocalizer localizer = mock(AsyncLocalizer.class);
        BlobChangingCallback cb = mock(BlobChangingCallback.class);
        Container container = mock(Container.class);
        ContainerLauncher containerLauncher = mock(ContainerLauncher.class);
        LSWorkerHeartbeat oldhb = mkWorkerHB(topoId, port, execList, Time.currentTimeSecs() - 10);
        LSWorkerHeartbeat goodhb = mkWorkerHB(topoId, port, execList, Time.currentTimeSecs());
        when(container.readHeartbeat()).thenReturn(oldhb, oldhb, goodhb, goodhb);
        when(container.areAllProcessesDead()).thenReturn(false, false, true);
        ISupervisor iSuper = mock(ISupervisor.class);
        LocalState state = mock(LocalState.class);
        SlotMetrics slotMetrics = new SlotMetrics(new StormMetricsRegistry());
        StaticState staticState = new StaticState(localizer, 5000, 120000, 1000, 1000, containerLauncher, "localhost", port, iSuper, state, cb, null, null, slotMetrics);
        DynamicState dynamicState = new DynamicState(assignment, container, assignment, slotMetrics);
        DynamicState nextState = Slot.stateMachineStep(dynamicState, staticState);
        assertEquals(MachineState.KILL_AND_RELAUNCH, nextState.state);
        verify(container).kill();
        assertTrue(Time.currentTimeMillis() > 1000);
        nextState = Slot.stateMachineStep(nextState, staticState);
        assertEquals(MachineState.KILL_AND_RELAUNCH, nextState.state);
        verify(container).forceKill();
        assertTrue(Time.currentTimeMillis() > 2000);
        nextState = Slot.stateMachineStep(nextState, staticState);
        assertEquals(MachineState.WAITING_FOR_WORKER_START, nextState.state);
        verify(container).relaunch();
        nextState = Slot.stateMachineStep(nextState, staticState);
        assertEquals(MachineState.WAITING_FOR_WORKER_START, nextState.state);
        assertTrue(Time.currentTimeMillis() > 3000);
        nextState = Slot.stateMachineStep(nextState, staticState);
        assertEquals(MachineState.RUNNING, nextState.state);
    }
}

Example 84 with StormMetricsRegistry

use of org.apache.storm.metric.StormMetricsRegistry in project storm by apache.

the class TestGenericResourceAwareStrategy method testGenericResourceAwareStrategyWithoutSettingAckerExecutors.

/**
 * Test if the scheduling logic for the GenericResourceAwareStrategy is correct
 * without setting {@link Config#TOPOLOGY_ACKER_EXECUTORS}.
 *
 * Test details refer to {@link TestDefaultResourceAwareStrategy#testDefaultResourceAwareStrategyWithoutSettingAckerExecutors(int)}
 */
@ParameterizedTest
@ValueSource(ints = { -1, 0, 1, 2 })
public void testGenericResourceAwareStrategyWithoutSettingAckerExecutors(int numOfAckersPerWorker) throws InvalidTopologyException {
    int spoutParallelism = 1;
    int boltParallelism = 2;
    TopologyBuilder builder = new TopologyBuilder();
    builder.setSpout("spout", new TestSpout(), spoutParallelism);
    builder.setBolt("bolt-1", new TestBolt(), boltParallelism).shuffleGrouping("spout");
    builder.setBolt("bolt-2", new TestBolt(), boltParallelism).shuffleGrouping("bolt-1").addResource("gpu.count", 1.0);
    builder.setBolt("bolt-3", new TestBolt(), boltParallelism).shuffleGrouping("bolt-2").addResource("gpu.count", 2.0);
    String topoName = "testTopology";
    StormTopology stormToplogy = builder.createTopology();
    INimbus iNimbus = new INimbusTest();
    Config conf = createGrasClusterConfig(50, 500, 0, null, Collections.emptyMap());
    Map<String, Double> genericResourcesMap = new HashMap<>();
    genericResourcesMap.put("gpu.count", 2.0);
    Map<String, SupervisorDetails> supMap = genSupervisors(4, 4, 200, 2000, genericResourcesMap);
    conf.put(Config.TOPOLOGY_PRIORITY, 0);
    conf.put(Config.TOPOLOGY_NAME, topoName);
    conf.put(Config.TOPOLOGY_WORKER_MAX_HEAP_SIZE_MB, 2000);
    conf.put(Config.TOPOLOGY_SUBMITTER_USER, "user");
    // Parameterized test on different numOfAckersPerWorker
    if (numOfAckersPerWorker == -1) {
    // Both Config.TOPOLOGY_ACKER_EXECUTORS and Config.TOPOLOGY_RAS_ACKER_EXECUTORS_PER_WORKER are not set
    // Default will be 2 (estimate num of workers) and 1 respectively
    } else {
        conf.put(Config.TOPOLOGY_RAS_ACKER_EXECUTORS_PER_WORKER, numOfAckersPerWorker);
    }
    int estimatedNumWorker = ServerUtils.getEstimatedWorkerCountForRasTopo(conf, stormToplogy);
    Nimbus.setUpAckerExecutorConfigs(topoName, conf, conf, estimatedNumWorker);
    conf.put(Config.TOPOLOGY_ACKER_RESOURCES_ONHEAP_MEMORY_MB, 250);
    conf.put(Config.TOPOLOGY_ACKER_CPU_PCORE_PERCENT, 50);
    TopologyDetails topo = new TopologyDetails("testTopology-id", conf, stormToplogy, 0, genExecsAndComps(StormCommon.systemTopology(conf, stormToplogy)), currentTime, "user");
    Topologies topologies = new Topologies(topo);
    Cluster cluster = new Cluster(iNimbus, new ResourceMetrics(new StormMetricsRegistry()), supMap, new HashMap<>(), topologies, conf);
    scheduler = new ResourceAwareScheduler();
    scheduler.prepare(conf, new StormMetricsRegistry());
    scheduler.schedule(topologies, cluster);
    // We need to have 3 slots on 3 separate hosts. The topology needs 6 GPUs 3500 MB memory and 350% CPU
    // The bolt-3 instances must be on separate nodes because they each need 2 GPUs.
    // The bolt-2 instances must be on the same node as they each need 1 GPU
    // (this assumes that we are packing the components to avoid fragmentation).
    // The bolt-1 and spout instances fill in the rest.
    // Ordered execs: [[6, 6], [2, 2], [4, 4], [5, 5], [1, 1], [3, 3], [0, 0]]
    // Ackers: [[8, 8], [7, 7]] (+ [[9, 9], [10, 10]] when numOfAckersPerWorker=2)
    HashSet<HashSet<ExecutorDetails>> expectedScheduling = new HashSet<>();
    if (numOfAckersPerWorker == -1 || numOfAckersPerWorker == 1) {
        expectedScheduling.add(new HashSet<>(Arrays.asList(// bolt-3 - 500 MB, 50% CPU, 2 GPU
        new ExecutorDetails(3, 3))));
        // Total 500 MB, 50% CPU, 2 - GPU -> this node has 1500 MB, 150% cpu, 0 GPU left
        expectedScheduling.add(new HashSet<>(Arrays.asList(// bolt-2 - 500 MB, 50% CPU, 1 GPU
        new ExecutorDetails(6, 6), // bolt-1 - 500 MB, 50% CPU, 0 GPU
        new ExecutorDetails(2, 2), // bolt-2 - 500 MB, 50% CPU, 1 GPU
        new ExecutorDetails(5, 5), // acker - 250 MB, 50% CPU, 0 GPU
        new ExecutorDetails(8, 8))));
        // Total 1750 MB, 200% CPU, 2 GPU -> this node has 250 MB, 0% CPU, 0 GPU left
        expectedScheduling.add(new HashSet<>(Arrays.asList(// bolt-3 500 MB, 50% cpu, 2 GPU
        new ExecutorDetails(4, 4), // bolt-1 - 500 MB, 50% CPU, 0 GPU
        new ExecutorDetails(1, 1), // Spout - 500 MB, 50% CPU, 0 GPU
        new ExecutorDetails(0, 0), // acker - 250 MB, 50% CPU, 0 GPU
        new ExecutorDetails(7, 7))));
    // Total 1750 MB, 200% CPU, 2 GPU -> this node has 250 MB, 0% CPU, 0 GPU left
    } else if (numOfAckersPerWorker == 0) {
        expectedScheduling.add(new HashSet<>(Arrays.asList(// bolt-3 - 500 MB, 50% CPU, 2 GPU
        new ExecutorDetails(3, 3))));
        // Total 500 MB, 50% CPU, 2 - GPU -> this node has 1500 MB, 150% cpu, 0 GPU left
        expectedScheduling.add(new HashSet<>(Arrays.asList(// bolt-2 - 500 MB, 50% CPU, 1 GPU
        new ExecutorDetails(6, 6), // bolt-1 - 500 MB, 50% CPU, 0 GPU
        new ExecutorDetails(2, 2), // bolt-2 - 500 MB, 50% CPU, 1 GPU
        new ExecutorDetails(5, 5), // bolt-1 - 500 MB, 50% CPU, 0 GPU
        new ExecutorDetails(1, 1))));
        // Total 2000 MB, 200% CPU, 2 GPU -> this node has 0 MB, 0% CPU, 0 GPU left
        expectedScheduling.add(new HashSet<>(Arrays.asList(// Spout - 500 MB, 50% CPU, 0 GPU
        new ExecutorDetails(0, 0), // bolt-3 500 MB, 50% cpu, 2 GPU
        new ExecutorDetails(4, 4))));
    // Total 1000 MB, 100% CPU, 2 GPU -> this node has 1000 MB, 100% CPU, 0 GPU left
    } else if (numOfAckersPerWorker == 2) {
        expectedScheduling.add(new HashSet<>(Arrays.asList(// bolt-3 - 500 MB, 50% CPU, 2 GPU
        new ExecutorDetails(3, 3))));
        // Total 500 MB, 50% CPU, 2 - GPU -> this node has 1500 MB, 150% cpu, 0 GPU left
        expectedScheduling.add(new HashSet<>(Arrays.asList(// acker - 250 MB, 50% CPU, 0 GPU
        new ExecutorDetails(7, 7), // acker - 250 MB, 50% CPU, 0 GPU
        new ExecutorDetails(8, 8), // bolt-2 - 500 MB, 50% CPU, 1 GPU
        new ExecutorDetails(6, 6), // bolt-1 - 500 MB, 50% CPU, 0 GPU
        new ExecutorDetails(2, 2))));
        // Total 1500 MB, 200% CPU, 2 GPU -> this node has 500 MB, 0% CPU, 0 GPU left
        expectedScheduling.add(new HashSet<>(Arrays.asList(// acker- 250 MB, 50% CPU, 0 GPU
        new ExecutorDetails(9, 9), // acker- 250 MB, 50% CPU, 0 GPU
        new ExecutorDetails(10, 10), // bolt-1 - 500 MB, 50% CPU, 0 GPU
        new ExecutorDetails(1, 1), // bolt-3 500 MB, 50% cpu, 2 GPU
        new ExecutorDetails(4, 4))));
        // Total 1500 MB, 200% CPU, 2 GPU -> this node has 500 MB, 0% CPU, 0 GPU left
        expectedScheduling.add(new HashSet<>(Arrays.asList(// Spout - 500 MB, 50% CPU, 0 GPU
        new ExecutorDetails(0, 0), // bolt-2 - 500 MB, 50% CPU, 1 GPU
        new ExecutorDetails(5, 5))));
    // Total 1000 MB, 100% CPU, 2 GPU -> this node has 1000 MB, 100% CPU, 0 GPU left
    }
    HashSet<HashSet<ExecutorDetails>> foundScheduling = new HashSet<>();
    SchedulerAssignment assignment = cluster.getAssignmentById("testTopology-id");
    for (Collection<ExecutorDetails> execs : assignment.getSlotToExecutors().values()) {
        foundScheduling.add(new HashSet<>(execs));
    }
    assertEquals(expectedScheduling, foundScheduling);
}

Example 85 with StormMetricsRegistry

use of org.apache.storm.metric.StormMetricsRegistry in project storm by apache.

the class TestGenericResourceAwareStrategy method testGenericResourceAwareStrategyInFavorOfShuffle.

/**
 * test if the scheduling logic for the GenericResourceAwareStrategy (when in favor of shuffle) is correct.
 */
@Test
public void testGenericResourceAwareStrategyInFavorOfShuffle() throws InvalidTopologyException {
    int spoutParallelism = 1;
    int boltParallelism = 2;
    TopologyBuilder builder = new TopologyBuilder();
    builder.setSpout("spout", new TestSpout(), spoutParallelism);
    builder.setBolt("bolt-1", new TestBolt(), boltParallelism).shuffleGrouping("spout");
    builder.setBolt("bolt-2", new TestBolt(), boltParallelism).shuffleGrouping("bolt-1").addResource("gpu.count", 1.0);
    builder.setBolt("bolt-3", new TestBolt(), boltParallelism).shuffleGrouping("bolt-2").addResource("gpu.count", 2.0);
    StormTopology stormToplogy = builder.createTopology();
    INimbus iNimbus = new INimbusTest();
    Config conf = createGrasClusterConfig(50, 250, 250, null, Collections.emptyMap());
    Map<String, Double> genericResourcesMap = new HashMap<>();
    genericResourcesMap.put("gpu.count", 2.0);
    Map<String, SupervisorDetails> supMap = genSupervisors(4, 4, 200, 2000, genericResourcesMap);
    conf.put(Config.TOPOLOGY_PRIORITY, 0);
    conf.put(Config.TOPOLOGY_NAME, "testTopology");
    conf.put(Config.TOPOLOGY_WORKER_MAX_HEAP_SIZE_MB, Double.MAX_VALUE);
    conf.put(Config.TOPOLOGY_SUBMITTER_USER, "user");
    conf.put(Config.TOPOLOGY_RAS_ORDER_EXECUTORS_BY_PROXIMITY_NEEDS, true);
    TopologyDetails topo = new TopologyDetails("testTopology-id", conf, stormToplogy, 0, genExecsAndComps(StormCommon.systemTopology(conf, stormToplogy)), currentTime, "user");
    Topologies topologies = new Topologies(topo);
    Cluster cluster = new Cluster(iNimbus, new ResourceMetrics(new StormMetricsRegistry()), supMap, new HashMap<>(), topologies, conf);
    ResourceAwareScheduler rs = new ResourceAwareScheduler();
    rs.prepare(conf, new StormMetricsRegistry());
    rs.schedule(topologies, cluster);
    // Sorted execs: [[0, 0], [2, 2], [6, 6], [4, 4], [1, 1], [5, 5], [3, 3], [7, 7]]
    // Ackers: [[7, 7]]]
    HashSet<HashSet<ExecutorDetails>> expectedScheduling = new HashSet<>();
    expectedScheduling.add(new HashSet<>(Arrays.asList(// spout
    new ExecutorDetails(0, 0), // bolt-1
    new ExecutorDetails(2, 2), // bolt-2
    new ExecutorDetails(6, 6), // acker
    new ExecutorDetails(7, 7))));
    expectedScheduling.add(new HashSet<>(Arrays.asList(// bolt-3
    new ExecutorDetails(4, 4), // bolt-1
    new ExecutorDetails(1, 1))));
    // bolt-2
    expectedScheduling.add(new HashSet<>(Arrays.asList(new ExecutorDetails(5, 5))));
    // bolt-3
    expectedScheduling.add(new HashSet<>(Arrays.asList(new ExecutorDetails(3, 3))));
    HashSet<HashSet<ExecutorDetails>> foundScheduling = new HashSet<>();
    SchedulerAssignment assignment = cluster.getAssignmentById("testTopology-id");
    for (Collection<ExecutorDetails> execs : assignment.getSlotToExecutors().values()) {
        foundScheduling.add(new HashSet<>(execs));
    }
    assertEquals(expectedScheduling, foundScheduling);
}