Examples with DefaultResourceAwareStrategy org.apache.storm.scheduler.resource.strategies.scheduling.DefaultResourceAwareStrategy used on opensource projects

Example 1 with DefaultResourceAwareStrategy

use of org.apache.storm.scheduler.resource.strategies.scheduling.DefaultResourceAwareStrategy in project storm by apache.

the class TestResourceAwareScheduler method testResourceLimitation.

@Test
public void testResourceLimitation() {
    INimbus iNimbus = new INimbusTest();
    Map<String, SupervisorDetails> supMap = genSupervisors(2, 2, 400, 2000);
    // a topology with multiple spouts
    TopologyBuilder builder1 = new TopologyBuilder();
    builder1.setSpout("wordSpout", new TestWordSpout(), 2).setCPULoad(250.0).setMemoryLoad(1000.0, 200.0);
    builder1.setBolt("wordCountBolt", new TestWordCounter(), 1).shuffleGrouping("wordSpout").setCPULoad(100.0).setMemoryLoad(500.0, 100.0);
    StormTopology stormTopology1 = builder1.createTopology();
    Config config = new Config();
    config.putAll(defaultTopologyConf);
    Map<ExecutorDetails, String> executorMap1 = genExecsAndComps(stormTopology1);
    TopologyDetails topology1 = new TopologyDetails("topology1", config, stormTopology1, 2, executorMap1, 0, "user");
    ResourceAwareScheduler rs = new ResourceAwareScheduler();
    scheduler = rs;
    Topologies topologies = new Topologies(topology1);
    Cluster cluster = new Cluster(iNimbus, new ResourceMetrics(new StormMetricsRegistry()), supMap, new HashMap<>(), topologies, config);
    rs.prepare(config, new StormMetricsRegistry());
    rs.schedule(topologies, cluster);
    SchedulerAssignment assignment1 = cluster.getAssignmentById(topology1.getId());
    Set<WorkerSlot> assignedSlots1 = assignment1.getSlots();
    Set<String> nodesIDs1 = new HashSet<>();
    for (WorkerSlot slot : assignedSlots1) {
        nodesIDs1.add(slot.getNodeId());
    }
    Collection<ExecutorDetails> executors1 = assignment1.getExecutors();
    List<Double> assignedExecutorMemory = new ArrayList<>();
    List<Double> assignedExecutorCpu = new ArrayList<>();
    for (ExecutorDetails executor : executors1) {
        assignedExecutorMemory.add(topology1.getTotalMemReqTask(executor));
        assignedExecutorCpu.add(topology1.getTotalCpuReqTask(executor));
    }
    Collections.sort(assignedExecutorCpu);
    Collections.sort(assignedExecutorMemory);
    Map<ExecutorDetails, SupervisorDetails> executorToSupervisor = new HashMap<>();
    Map<SupervisorDetails, List<ExecutorDetails>> supervisorToExecutors = new HashMap<>();
    Map<Double, Double> cpuAvailableToUsed = new HashMap<>();
    Map<Double, Double> memoryAvailableToUsed = new HashMap<>();
    for (Map.Entry<ExecutorDetails, WorkerSlot> entry : assignment1.getExecutorToSlot().entrySet()) {
        executorToSupervisor.put(entry.getKey(), cluster.getSupervisorById(entry.getValue().getNodeId()));
    }
    for (Map.Entry<ExecutorDetails, SupervisorDetails> entry : executorToSupervisor.entrySet()) {
        supervisorToExecutors.computeIfAbsent(entry.getValue(), k -> new ArrayList<>()).add(entry.getKey());
    }
    for (Map.Entry<SupervisorDetails, List<ExecutorDetails>> entry : supervisorToExecutors.entrySet()) {
        Double supervisorTotalCpu = entry.getKey().getTotalCpu();
        Double supervisorTotalMemory = entry.getKey().getTotalMemory();
        Double supervisorUsedCpu = 0.0;
        Double supervisorUsedMemory = 0.0;
        for (ExecutorDetails executor : entry.getValue()) {
            supervisorUsedMemory += topology1.getTotalCpuReqTask(executor);
            supervisorTotalCpu += topology1.getTotalMemReqTask(executor);
        }
        cpuAvailableToUsed.put(supervisorTotalCpu, supervisorUsedCpu);
        memoryAvailableToUsed.put(supervisorTotalMemory, supervisorUsedMemory);
    }
    // executor0 resides one one worker (on one), executor1 and executor2 on another worker (on the other node)
    assertEquals(2, assignedSlots1.size());
    assertEquals(2, nodesIDs1.size());
    assertEquals(3, executors1.size());
    assertEquals(100.0, assignedExecutorCpu.get(0), 0.001);
    assertEquals(250.0, assignedExecutorCpu.get(1), 0.001);
    assertEquals(250.0, assignedExecutorCpu.get(2), 0.001);
    assertEquals(600.0, assignedExecutorMemory.get(0), 0.001);
    assertEquals(1200.0, assignedExecutorMemory.get(1), 0.001);
    assertEquals(1200.0, assignedExecutorMemory.get(2), 0.001);
    for (Map.Entry<Double, Double> entry : memoryAvailableToUsed.entrySet()) {
        assertTrue(entry.getKey() - entry.getValue() >= 0);
    }
    for (Map.Entry<Double, Double> entry : cpuAvailableToUsed.entrySet()) {
        assertTrue(entry.getKey() - entry.getValue() >= 0);
    }
    assertFalse(cluster.needsSchedulingRas(topology1));
    assertTrue(cluster.getStatusMap().get(topology1.getId()).startsWith("Running - Fully Scheduled by DefaultResourceAwareStrategy"));
}