Examples of com.linkedin.d2.balancer.simulator.SimpleLoadBalancerSimulation$PropertyStoreFactory

Package com.linkedin.d2.balancer.simulator

Examples of com.linkedin.d2.balancer.simulator.SimpleLoadBalancerSimulation$PropertyStoreFactory

com.linkedin.d2.balancer.strategies.LoadBalancerStrategy
The SimpleLoadBalancerSimulation will try to simulate add/remove cluster/service calls on the load balancer across multiple threads. A fixed number of operations (the simulation step size) will be performed a fixed number of times (the total number of steps).

After each step is performed, verification will be performed to ensure that the simulation's view of the system is equivalent to that of the load balancer's.

    TogglingPublisher<ServiceProperties> serviceToggle = _factory.createServiceToggle(zkServiceRegistry,
                                                                             fsServiceStore,
                                                                             serviceBus);
    TogglingPublisher<UriProperties> uriToggle = _factory.createUriToggle(zkUriRegistry, fsUriStore, uriBus);


    SimpleLoadBalancerState state = new SimpleLoadBalancerState(
            executorService, uriBus, clusterBus, serviceBus, _clientFactories, _loadBalancerStrategyFactories,
            _sslContext, _sslParameters, _isSSLEnabled, _clientServicesConfig);
    SimpleLoadBalancer balancer = new SimpleLoadBalancer(state, _lbTimeout, _lbTimeoutUnit);


    TogglingLoadBalancer togLB = _factory.createBalancer(balancer, state, clusterToggle, serviceToggle, uriToggle);

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  public void testLoadBalancerSimulationRandom() throws URISyntaxException,
      IOException,
      ServiceUnavailableException,
      InterruptedException
  {
    SimpleLoadBalancerSimulation simulator =
        new SimpleLoadBalancerSimulation(new RandomLoadBalancerStrategyFactory());


    simulator.simulateMultithreaded(1, 1000, 20);
    simulator.reset();


    simulator.simulateMultithreaded(50, 10000, 20);
    simulator.reset();
  }

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  public void testLoadBalancerSimulationRandomLarge() throws URISyntaxException,
      IOException,
      ServiceUnavailableException,
      InterruptedException
  {
    SimpleLoadBalancerSimulation simulator =
        new SimpleLoadBalancerSimulation(new RandomLoadBalancerStrategyFactory());


    simulator.simulateMultithreaded(1, 1000, 20);
    simulator.reset();


    simulator.simulateMultithreaded(1, 10000, 20);
    simulator.reset();


    simulator.simulateMultithreaded(8, 10000, 750);
    simulator.reset();


    simulator.simulateMultithreaded(50, 10000, 100);
    simulator.reset();


    simulator.simulateMultithreaded(50, 10000, 100);
    simulator.reset();
  }

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  public void testLoadBalancerSimulationDegrader() throws URISyntaxException,
      IOException,
      ServiceUnavailableException,
      InterruptedException
  {
    SimpleLoadBalancerSimulation simulator =
        new SimpleLoadBalancerSimulation(new DegraderLoadBalancerStrategyFactoryV3());


    simulator.simulateMultithreaded(1, 1000, 20);
    simulator.reset();


    simulator.simulateMultithreaded(50, 10000, 20);
    simulator.reset();
  }

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  public void testLoadBalancerSimulationDegraderLarge() throws URISyntaxException,
      IOException,
      ServiceUnavailableException,
      InterruptedException
  {
    SimpleLoadBalancerSimulation simulator =
        new SimpleLoadBalancerSimulation(new DegraderLoadBalancerStrategyFactoryV3());


    simulator.simulateMultithreaded(1, 1000, 20);
    simulator.reset();


    simulator.simulateMultithreaded(1, 10000, 20);
    simulator.reset();


    simulator.simulateMultithreaded(8, 10000, 750);
    simulator.reset();


    simulator.simulateMultithreaded(50, 10000, 100);
    simulator.reset();


    simulator.simulateMultithreaded(50, 10000, 100);
    simulator.reset();
  }

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      IOException,
      ServiceUnavailableException,
      InterruptedException
  {


    SimpleLoadBalancerSimulation simulator =
        new SimpleLoadBalancerSimulation(new DegraderLoadBalancerStrategyFactoryV3(),
                                         new FileStoreTestFactory<ClusterProperties>("cluster",
                                                                                     new ClusterPropertiesJsonSerializer()),
                                         new FileStoreTestFactory<ServiceProperties>("service",
                                                                                     new ServicePropertiesJsonSerializer()),
                                         new FileStoreTestFactory<UriProperties>("uri",
                                                                                 new UriPropertiesJsonSerializer()));


    simulator.simulateMultithreaded(1, 1000, 20);
    simulator.reset();


    simulator.simulateMultithreaded(50, 10000, 20);
    simulator.reset();
  }

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  public void testLoadBalancerSimulationDegraderWithFileStoreLarge() throws URISyntaxException,
      IOException,
      ServiceUnavailableException,
      InterruptedException
  {
    SimpleLoadBalancerSimulation simulator =
        new SimpleLoadBalancerSimulation(new DegraderLoadBalancerStrategyFactoryV3(),
                                         new FileStoreTestFactory<ClusterProperties>("cluster",
                                                                                     new ClusterPropertiesJsonSerializer()),
                                         new FileStoreTestFactory<ServiceProperties>("service",
                                                                                     new ServicePropertiesJsonSerializer()),
                                         new FileStoreTestFactory<UriProperties>("uri",
                                                                                 new UriPropertiesJsonSerializer()));


    simulator.simulateMultithreaded(1, 1000, 20);
    simulator.reset();


    simulator.simulateMultithreaded(1, 10000, 20);
    simulator.reset();


    simulator.simulateMultithreaded(8, 10000, 750);
    simulator.reset();


    simulator.simulateMultithreaded(50, 10000, 100);
    simulator.reset();


    simulator.simulateMultithreaded(50, 10000, 100);
    simulator.reset();
  }

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                                                           List<String> prioritizedSchemes)
  {
    List<SchemeStrategyPair> orderedStrategies = new ArrayList<SchemeStrategyPair>(prioritizedSchemes.size());
    for (String scheme : prioritizedSchemes)
    {
      LoadBalancerStrategy strategy = getStrategy(serviceName, scheme);
      if (strategy != null)
      {
        orderedStrategies.add(new SchemeStrategyPair(
                                scheme,
                                getStrategy(serviceName, scheme))

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                                                            null,
                                                            null,
                                                            schemes,
                                                            null));


    LoadBalancerStrategy strategy = _state.getStrategy("service-1", "http");


    assertNotNull(strategy);
    assertTrue(strategy instanceof RandomLoadBalancerStrategy);
  }

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                                                            schemes,
                                                            null));


    assertNotNull(_state.getStrategy("service-1", "http"));


    LoadBalancerStrategy strategy = _state.getStrategy("service-1", "http");


    assertNotNull(strategy);
    assertTrue(strategy instanceof RandomLoadBalancerStrategy);


    // check that we're getting the exact same strategy (by pointer) every time
    assertTrue(strategy == _state.getStrategy("service-1", "http"));
    assertTrue(strategy == _state.getStrategy("service-1", "http"));


    // now make sure adding a cluster property won't change the strategy
    _clusterRegistry.put("cluster-1", new ClusterProperties("cluster-1"));


    // we should still have the same strategy now
    LoadBalancerStrategy newStrategy = _state.getStrategy("service-1", "http");
    assertNotNull(newStrategy);
    assertTrue(strategy == newStrategy);
    assertTrue(newStrategy instanceof RandomLoadBalancerStrategy);


    strategy = newStrategy;

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