Examples with RequestContext com.linkedin.r2.message.RequestContext used on opensource projects

Example 11 with RequestContext

use of com.linkedin.r2.message.RequestContext in project rest.li by linkedin.

the class RewriteClientTest method testEscapingHelper.

private void testEscapingHelper(String hostUri, String serviceName, String path) {
    URI uri = URI.create(hostUri);
    TestClient wrappedClient = new TestClient();
    RewriteClient client = new RewriteClient(serviceName, uri, wrappedClient);
    assertEquals(client.getUri(), uri);
    assertEquals(client.getServiceName(), serviceName);
    assertEquals(client.getWrappedClient(), wrappedClient);
    RestRequest restRequest = new RestRequestBuilder(URI.create("d2://" + serviceName + path)).build();
    Map<String, String> restWireAttrs = new HashMap<String, String>();
    TestTransportCallback<RestResponse> restCallback = new TestTransportCallback<RestResponse>();
    client.restRequest(restRequest, new RequestContext(), restWireAttrs, restCallback);
    assertFalse(restCallback.response.hasError());
    assertEquals(wrappedClient.restRequest.getHeaders(), restRequest.getHeaders());
    assertEquals(wrappedClient.restRequest.getEntity(), restRequest.getEntity());
    assertEquals(wrappedClient.restRequest.getMethod(), restRequest.getMethod());
    assertEquals(wrappedClient.restRequest.getURI(), URI.create(hostUri + path));
}

Example 12 with RequestContext

use of com.linkedin.r2.message.RequestContext in project rest.li by linkedin.

the class RewriteClientTestStreamRequest method testWithQueryAndFragment.

@Test
public void testWithQueryAndFragment() {
    URI uri = URI.create("http://test.linkedin.com/test");
    String serviceName = "HistoryService";
    TestClient wrappedClient = new TestClient();
    RewriteClient client = new RewriteClient(serviceName, uri, wrappedClient);
    assertEquals(client.getUri(), uri);
    assertEquals(client.getServiceName(), serviceName);
    assertEquals(client.getWrappedClient(), wrappedClient);
    StreamRequest streamRequest = getRequest("d2://HistoryService/getCube?bar=baz#fragId");
    Map<String, String> restWireAttrs = new HashMap<String, String>();
    TestTransportCallback<StreamResponse> restCallback = new TestTransportCallback<StreamResponse>();
    client.streamRequest(streamRequest, new RequestContext(), restWireAttrs, restCallback);
    assertFalse(restCallback.response.hasError());
    assertEquals(wrappedClient.streamRequest.getHeaders(), streamRequest.getHeaders());
    assertEquals(wrappedClient.streamRequest.getMethod(), streamRequest.getMethod());
    assertEquals(wrappedClient.streamRequest.getURI(), URI.create("http://test.linkedin.com/test/getCube?bar=baz#fragId"));
}

Example 13 with RequestContext

use of com.linkedin.r2.message.RequestContext 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 14 with RequestContext

use of com.linkedin.r2.message.RequestContext 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 15 with RequestContext

use of com.linkedin.r2.message.RequestContext in project rest.li by linkedin.

the class DegraderLoadBalancerTest method testHighLowWatermarks.

@Test(groups = { "small", "back-end" })
public void testHighLowWatermarks() {
    final int NUM_CHECKS = 5;
    Map<String, Object> myMap = new HashMap<String, Object>();
    Long timeInterval = 5000L;
    double globalStepUp = 0.4;
    double globalStepDown = 0.4;
    double highWaterMark = 1000;
    double lowWaterMark = 50;
    TestClock clock = new TestClock();
    myMap.put(PropertyKeys.CLOCK, clock);
    myMap.put(PropertyKeys.HTTP_LB_STRATEGY_PROPERTIES_UPDATE_INTERVAL_MS, timeInterval);
    myMap.put(PropertyKeys.HTTP_LB_GLOBAL_STEP_UP, globalStepUp);
    myMap.put(PropertyKeys.HTTP_LB_GLOBAL_STEP_DOWN, globalStepDown);
    myMap.put(PropertyKeys.HTTP_LB_HIGH_WATER_MARK, highWaterMark);
    myMap.put(PropertyKeys.HTTP_LB_LOW_WATER_MARK, lowWaterMark);
    myMap.put(PropertyKeys.HTTP_LB_CLUSTER_MIN_CALL_COUNT_HIGH_WATER_MARK, 1l);
    myMap.put(PropertyKeys.HTTP_LB_CLUSTER_MIN_CALL_COUNT_LOW_WATER_MARK, 1l);
    DegraderLoadBalancerStrategyConfig config = DegraderLoadBalancerStrategyConfig.createHttpConfigFromMap(myMap);
    DegraderLoadBalancerStrategyV3 strategy = new DegraderLoadBalancerStrategyV3(config, "DegraderLoadBalancerTest", null);
    List<TrackerClient> clients = new ArrayList<TrackerClient>();
    URI uri1 = URI.create("http://test.linkedin.com:3242/fdsaf");
    URIRequest request = new URIRequest(uri1);
    TrackerClient client1 = new TrackerClient(uri1, getDefaultPartitionData(1d), new TestLoadBalancerClient(uri1), clock, null);
    clients.add(client1);
    DegraderControl dcClient1Default = client1.getDegraderControl(DEFAULT_PARTITION_ID);
    dcClient1Default.setOverrideMinCallCount(5);
    dcClient1Default.setMinCallCount(5);
    List<CallCompletion> ccList = new ArrayList<CallCompletion>();
    CallCompletion cc;
    TrackerClient resultTC = getTrackerClient(strategy, request, new RequestContext(), 1, clients);
    // The override drop rate should be zero at this point.
    assertEquals(dcClient1Default.getOverrideDropRate(), 0.0);
    // make high latency calls to the tracker client, verify the override drop rate doesn't change
    for (int j = 0; j < NUM_CHECKS; j++) {
        cc = client1.getCallTracker().startCall();
        ccList.add(cc);
    }
    clock.addMs((long) highWaterMark);
    for (Iterator<CallCompletion> iter = ccList.listIterator(); iter.hasNext(); ) {
        cc = iter.next();
        cc.endCall();
        iter.remove();
    }
    // go to next time interval.
    clock.addMs(timeInterval);
    // try call dropping on the next updateState
    strategy.setStrategy(DEFAULT_PARTITION_ID, DegraderLoadBalancerStrategyV3.PartitionDegraderLoadBalancerState.Strategy.CALL_DROPPING);
    resultTC = getTrackerClient(strategy, request, new RequestContext(), 1, clients);
    // we now expect that the override drop rate stepped up because updateState
    // made that decision.
    assertEquals(dcClient1Default.getOverrideDropRate(), globalStepUp);
    // make mid latency calls to the tracker client, verify the override drop rate doesn't change
    for (int j = 0; j < NUM_CHECKS; j++) {
        // need to use client1 because the resultTC may be null
        cc = client1.getCallTracker().startCall();
        ccList.add(cc);
    }
    clock.addMs((long) highWaterMark - 1);
    for (Iterator<CallCompletion> iter = ccList.listIterator(); iter.hasNext(); ) {
        cc = iter.next();
        cc.endCall();
        iter.remove();
    }
    // go to next time interval.
    clock.addMs(timeInterval);
    double previousOverrideDropRate = dcClient1Default.getOverrideDropRate();
    // try call dropping on the next updateState
    strategy.setStrategy(DEFAULT_PARTITION_ID, DegraderLoadBalancerStrategyV3.PartitionDegraderLoadBalancerState.Strategy.CALL_DROPPING);
    resultTC = getTrackerClient(strategy, request, new RequestContext(), 1, clients);
    assertEquals(dcClient1Default.getOverrideDropRate(), previousOverrideDropRate);
    // make low latency calls to the tracker client, verify the override drop rate decreases
    for (int j = 0; j < NUM_CHECKS; j++) {
        cc = client1.getCallTracker().startCall();
        ccList.add(cc);
    }
    clock.addMs((long) lowWaterMark);
    for (Iterator<CallCompletion> iter = ccList.listIterator(); iter.hasNext(); ) {
        cc = iter.next();
        cc.endCall();
        iter.remove();
    }
    // go to next time interval.
    clock.addMs(timeInterval);
    // try Call dropping on this updateState
    strategy.setStrategy(DEFAULT_PARTITION_ID, DegraderLoadBalancerStrategyV3.PartitionDegraderLoadBalancerState.Strategy.CALL_DROPPING);
    resultTC = getTrackerClient(strategy, request, new RequestContext(), 1, clients);
    assertEquals(resultTC.getDegraderControl(DEFAULT_PARTITION_ID).getOverrideDropRate(), 0.0);
}