Examples with MockStore com.linkedin.d2.discovery.stores.mock.MockStore used on opensource projects

Example 1 with MockStore

use of com.linkedin.d2.discovery.stores.mock.MockStore in project rest.li by linkedin.

the class SimpleLoadBalancerTest method testLoadBalancerSmoke.

@Test(groups = { "small", "back-end" })
public void testLoadBalancerSmoke() throws URISyntaxException, ServiceUnavailableException, InterruptedException, ExecutionException {
    for (int tryAgain = 0; tryAgain < 1000; ++tryAgain) {
        Map<String, LoadBalancerStrategyFactory<? extends LoadBalancerStrategy>> loadBalancerStrategyFactories = new HashMap<String, LoadBalancerStrategyFactory<? extends LoadBalancerStrategy>>();
        Map<String, TransportClientFactory> clientFactories = new HashMap<String, TransportClientFactory>();
        List<String> prioritizedSchemes = new ArrayList<String>();
        MockStore<ServiceProperties> serviceRegistry = new MockStore<ServiceProperties>();
        MockStore<ClusterProperties> clusterRegistry = new MockStore<ClusterProperties>();
        MockStore<UriProperties> uriRegistry = new MockStore<UriProperties>();
        ScheduledExecutorService executorService = new SynchronousExecutorService();
        //loadBalancerStrategyFactories.put("rr", new RandomLoadBalancerStrategyFactory());
        loadBalancerStrategyFactories.put("degrader", new DegraderLoadBalancerStrategyFactoryV3());
        // PrpcClientFactory();
        // new
        clientFactories.put("http", new DoNothingClientFactory());
        // HttpClientFactory();
        SimpleLoadBalancerState state = new SimpleLoadBalancerState(executorService, uriRegistry, clusterRegistry, serviceRegistry, clientFactories, loadBalancerStrategyFactories);
        SimpleLoadBalancer loadBalancer = new SimpleLoadBalancer(state, 5, TimeUnit.SECONDS);
        FutureCallback<None> balancerCallback = new FutureCallback<None>();
        loadBalancer.start(balancerCallback);
        balancerCallback.get();
        URI uri1 = URI.create("http://test.qa1.com:1234");
        URI uri2 = URI.create("http://test.qa2.com:2345");
        URI uri3 = URI.create("http://test.qa3.com:6789");
        Map<Integer, PartitionData> partitionData = new HashMap<Integer, PartitionData>(1);
        partitionData.put(DefaultPartitionAccessor.DEFAULT_PARTITION_ID, new PartitionData(1d));
        Map<URI, Map<Integer, PartitionData>> uriData = new HashMap<URI, Map<Integer, PartitionData>>(3);
        uriData.put(uri1, partitionData);
        uriData.put(uri2, partitionData);
        uriData.put(uri3, partitionData);
        prioritizedSchemes.add("http");
        clusterRegistry.put("cluster-1", new ClusterProperties("cluster-1"));
        serviceRegistry.put("foo", new ServiceProperties("foo", "cluster-1", "/foo", Arrays.asList("degrader"), Collections.<String, Object>emptyMap(), null, null, prioritizedSchemes, null));
        uriRegistry.put("cluster-1", new UriProperties("cluster-1", uriData));
        URI expectedUri1 = URI.create("http://test.qa1.com:1234/foo");
        URI expectedUri2 = URI.create("http://test.qa2.com:2345/foo");
        URI expectedUri3 = URI.create("http://test.qa3.com:6789/foo");
        Set<URI> expectedUris = new HashSet<URI>();
        expectedUris.add(expectedUri1);
        expectedUris.add(expectedUri2);
        expectedUris.add(expectedUri3);
        for (int i = 0; i < 100; ++i) {
            RewriteClient client = (RewriteClient) loadBalancer.getClient(new URIRequest("d2://foo/52"), new RequestContext());
            assertTrue(expectedUris.contains(client.getUri()));
            assertEquals(client.getUri().getScheme(), "http");
        }
        final CountDownLatch latch = new CountDownLatch(1);
        PropertyEventShutdownCallback callback = new PropertyEventShutdownCallback() {

            @Override
            public void done() {
                latch.countDown();
            }
        };
        state.shutdown(callback);
        if (!latch.await(60, TimeUnit.SECONDS)) {
            fail("unable to shutdown state");
        }
        executorService.shutdownNow();
        assertTrue(executorService.isShutdown(), "ExecutorService should have shut down!");
    }
}

Example 2 with MockStore

use of com.linkedin.d2.discovery.stores.mock.MockStore in project rest.li by linkedin.

the class SimpleLoadBalancerTest method testLoadBalancerDropRate.

/**
   * This test simulates dropping requests by playing with OverrideDropRate in config
   *
   */
@Test(groups = { "small", "back-end" })
public void testLoadBalancerDropRate() throws ServiceUnavailableException, ExecutionException, InterruptedException {
    final int RETRY = 10;
    for (int tryAgain = 0; tryAgain < RETRY; ++tryAgain) {
        Map<String, LoadBalancerStrategyFactory<? extends LoadBalancerStrategy>> loadBalancerStrategyFactories = new HashMap<String, LoadBalancerStrategyFactory<? extends LoadBalancerStrategy>>();
        Map<String, TransportClientFactory> clientFactories = new HashMap<String, TransportClientFactory>();
        List<String> prioritizedSchemes = new ArrayList<String>();
        MockStore<ServiceProperties> serviceRegistry = new MockStore<ServiceProperties>();
        MockStore<ClusterProperties> clusterRegistry = new MockStore<ClusterProperties>();
        MockStore<UriProperties> uriRegistry = new MockStore<UriProperties>();
        ScheduledExecutorService executorService = new SynchronousExecutorService();
        //loadBalancerStrategyFactories.put("rr", new RandomLoadBalancerStrategyFactory());
        loadBalancerStrategyFactories.put("degrader", new DegraderLoadBalancerStrategyFactoryV3());
        // PrpcClientFactory();
        // new
        clientFactories.put("http", new DoNothingClientFactory());
        // HttpClientFactory();
        SimpleLoadBalancerState state = new SimpleLoadBalancerState(executorService, uriRegistry, clusterRegistry, serviceRegistry, clientFactories, loadBalancerStrategyFactories);
        SimpleLoadBalancer loadBalancer = new SimpleLoadBalancer(state, 5, TimeUnit.SECONDS);
        FutureCallback<None> balancerCallback = new FutureCallback<None>();
        loadBalancer.start(balancerCallback);
        balancerCallback.get();
        URI uri1 = URI.create("http://test.qa1.com:1234");
        URI uri2 = URI.create("http://test.qa2.com:2345");
        URI uri3 = URI.create("http://test.qa3.com:6789");
        Map<Integer, PartitionData> partitionData = new HashMap<Integer, PartitionData>(1);
        partitionData.put(DefaultPartitionAccessor.DEFAULT_PARTITION_ID, new PartitionData(1d));
        Map<URI, Map<Integer, PartitionData>> uriData = new HashMap<URI, Map<Integer, PartitionData>>(3);
        uriData.put(uri1, partitionData);
        uriData.put(uri2, partitionData);
        uriData.put(uri3, partitionData);
        prioritizedSchemes.add("http");
        clusterRegistry.put("cluster-1", new ClusterProperties("cluster-1"));
        serviceRegistry.put("foo", new ServiceProperties("foo", "cluster-1", "/foo", Arrays.asList("degrader"), Collections.<String, Object>emptyMap(), null, null, prioritizedSchemes, null));
        uriRegistry.put("cluster-1", new UriProperties("cluster-1", uriData));
        URI expectedUri1 = URI.create("http://test.qa1.com:1234/foo");
        URI expectedUri2 = URI.create("http://test.qa2.com:2345/foo");
        URI expectedUri3 = URI.create("http://test.qa3.com:6789/foo");
        Set<URI> expectedUris = new HashSet<URI>();
        expectedUris.add(expectedUri1);
        expectedUris.add(expectedUri2);
        expectedUris.add(expectedUri3);
        Random random = new Random();
        for (int i = 0; i < 100; ++i) {
            try {
                RewriteClient client = (RewriteClient) loadBalancer.getClient(new URIRequest("d2://foo/52"), new RequestContext());
                TrackerClient tClient = (TrackerClient) client.getWrappedClient();
                DegraderImpl degrader = (DegraderImpl) tClient.getDegrader(DefaultPartitionAccessor.DEFAULT_PARTITION_ID);
                DegraderImpl.Config cfg = new DegraderImpl.Config(degrader.getConfig());
                // Change DropRate to 0.0 at the rate of 1/3
                cfg.setOverrideDropRate((random.nextInt(2) == 0) ? 1.0 : 0.0);
                degrader.setConfig(cfg);
                assertTrue(expectedUris.contains(client.getUri()));
                assertEquals(client.getUri().getScheme(), "http");
            } catch (ServiceUnavailableException e) {
                assertTrue(e.toString().contains("in a bad state (high latency/high error)"));
            }
        }
        final CountDownLatch latch = new CountDownLatch(1);
        PropertyEventShutdownCallback callback = new PropertyEventShutdownCallback() {

            @Override
            public void done() {
                latch.countDown();
            }
        };
        state.shutdown(callback);
        if (!latch.await(60, TimeUnit.SECONDS)) {
            fail("unable to shutdown state");
        }
        executorService.shutdownNow();
        assertTrue(executorService.isShutdown(), "ExecutorService should have shut down!");
    }
}

Example 3 with MockStore

use of com.linkedin.d2.discovery.stores.mock.MockStore in project rest.li by linkedin.

the class PropertyEventBusImplTest method getBus.

@Override
public PropertyEventBus<String> getBus() {
    // TODO rewrite tests in the parent class so they work with either sync or async, and
    // test both modes of operation.
    ScheduledExecutorService executorService = new SynchronousExecutorService();
    PropertyEventPublisher<String> publisher = new MockStore<String>();
    PropertyEventBus<String> bus = new PropertyEventBusImpl<String>(executorService, publisher);
    return bus;
}

Example 4 with MockStore

use of com.linkedin.d2.discovery.stores.mock.MockStore in project rest.li by linkedin.

the class SimpleLoadBalancerStateTest method reset.

public void reset(boolean useSSL) {
    _executorService = new SynchronousExecutorService();
    _uriRegistry = new MockStore<UriProperties>();
    _clusterRegistry = new MockStore<ClusterProperties>();
    _serviceRegistry = new MockStore<ServiceProperties>();
    _clientFactories = new HashMap<String, TransportClientFactory>();
    _loadBalancerStrategyFactories = new HashMap<String, LoadBalancerStrategyFactory<? extends LoadBalancerStrategy>>();
    _loadBalancerStrategyFactories.put("random", new RandomLoadBalancerStrategyFactory());
    _loadBalancerStrategyFactories.put("degraderV3", new DegraderLoadBalancerStrategyFactoryV3());
    try {
        _sslContext = SSLContext.getDefault();
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException(e);
    }
    _sslParameters = new SSLParameters();
    if (useSSL) {
        _clientFactories.put("https", new SimpleLoadBalancerTest.DoNothingClientFactory());
        _state = new SimpleLoadBalancerState(_executorService, _uriRegistry, _clusterRegistry, _serviceRegistry, _clientFactories, _loadBalancerStrategyFactories, _sslContext, _sslParameters, true);
    } else {
        _clientFactories.put("http", new SimpleLoadBalancerTest.DoNothingClientFactory());
        _state = new SimpleLoadBalancerState(_executorService, _uriRegistry, _clusterRegistry, _serviceRegistry, _clientFactories, _loadBalancerStrategyFactories);
    }
    FutureCallback<None> callback = new FutureCallback<None>();
    _state.start(callback);
    try {
        callback.get();
    } catch (Exception e) {
        Assert.fail("State start failed", e);
    }
}

Example 5 with MockStore

use of com.linkedin.d2.discovery.stores.mock.MockStore in project rest.li by linkedin.

the class SimpleLoadBalancerStateTest method testGetClientAfterBadProperties.

@Test(groups = { "small", "back-end" })
public void testGetClientAfterBadProperties() throws URISyntaxException, InterruptedException {
    reset();
    URI uri = URI.create("http://cluster-1/test");
    List<String> schemes = new ArrayList<String>();
    Map<Integer, PartitionData> partitionData = new HashMap<Integer, PartitionData>(1);
    partitionData.put(DefaultPartitionAccessor.DEFAULT_PARTITION_ID, new PartitionData(1d));
    Map<URI, Map<Integer, PartitionData>> uriData = new HashMap<URI, Map<Integer, PartitionData>>();
    uriData.put(uri, partitionData);
    schemes.add("http");
    assertNull(_state.getClient("service-1", uri));
    Map<String, Object> transportProperties = new HashMap<String, Object>();
    transportProperties.put("foobar", "unsupportedValue");
    _serviceRegistry.put("service-1", new ServiceProperties("service-1", "cluster-1", "/test", Arrays.asList("random"), Collections.<String, Object>emptyMap(), transportProperties, null, schemes, null));
    // we add the property first before listening to the service because the MockStore will
    // immediately publish to the eventBus when listenToService() is called, whereas the
    // ZooKeeper stores wait until we get a response back from zookeeper, which triggers handlePut.
    CountDownLatch cdl1 = new CountDownLatch(1);
    _state.listenToService("service-1", new SimpleLoadBalancer.SimpleLoadBalancerCountDownCallback(cdl1));
    // Verify the callback did NOT get invoked, i.e., the exception was thrown during handlePut()
    assertEquals(cdl1.getCount(), 1);
    // set up state
    CountDownLatch cdl2 = new CountDownLatch(1);
    _state.listenToCluster("cluster-1", new SimpleLoadBalancer.SimpleLoadBalancerCountDownCallback(cdl2));
    assertTrue(cdl2.await(60, TimeUnit.SECONDS));
    _uriRegistry.put("cluster-1", new UriProperties("cluster-1", uriData));
    assertNull(_state.getClient("service-1", uri));
    _serviceRegistry.put("service-1", new ServiceProperties("service-1", "cluster-1", "/test", Arrays.asList("random"), Collections.<String, Object>emptyMap(), null, null, schemes, null));
    CountDownLatch cdl = new CountDownLatch(1);
    _state.listenToService("service-1", new SimpleLoadBalancer.SimpleLoadBalancerCountDownCallback(cdl));
    assertTrue(cdl.await(60, TimeUnit.SECONDS));
}