use of io.grpc.LoadBalancerProvider in project grpc-java by grpc.
the class ClusterImplLoadBalancerTest method recordLoadStats.
@Test
public void recordLoadStats() {
LoadBalancerProvider weightedTargetProvider = new WeightedTargetLoadBalancerProvider();
WeightedTargetConfig weightedTargetConfig = buildWeightedTargetConfig(ImmutableMap.of(locality, 10));
ClusterImplConfig config = new ClusterImplConfig(CLUSTER, EDS_SERVICE_NAME, LRS_SERVER_INFO, null, Collections.<DropOverload>emptyList(), new PolicySelection(weightedTargetProvider, weightedTargetConfig), null);
EquivalentAddressGroup endpoint = makeAddress("endpoint-addr", locality);
deliverAddressesAndConfig(Collections.singletonList(endpoint), config);
FakeLoadBalancer leafBalancer = Iterables.getOnlyElement(downstreamBalancers);
Subchannel subchannel = leafBalancer.helper.createSubchannel(CreateSubchannelArgs.newBuilder().setAddresses(leafBalancer.addresses).build());
leafBalancer.deliverSubchannelState(subchannel, ConnectivityState.READY);
assertThat(currentState).isEqualTo(ConnectivityState.READY);
PickResult result = currentPicker.pickSubchannel(mock(PickSubchannelArgs.class));
assertThat(result.getStatus().isOk()).isTrue();
ClientStreamTracer streamTracer1 = result.getStreamTracerFactory().newClientStreamTracer(ClientStreamTracer.StreamInfo.newBuilder().build(), // first RPC call
new Metadata());
ClientStreamTracer streamTracer2 = result.getStreamTracerFactory().newClientStreamTracer(ClientStreamTracer.StreamInfo.newBuilder().build(), // second RPC call
new Metadata());
ClientStreamTracer streamTracer3 = result.getStreamTracerFactory().newClientStreamTracer(ClientStreamTracer.StreamInfo.newBuilder().build(), // third RPC call
new Metadata());
streamTracer1.streamClosed(Status.OK);
streamTracer2.streamClosed(Status.UNAVAILABLE);
ClusterStats clusterStats = Iterables.getOnlyElement(loadStatsManager.getClusterStatsReports(CLUSTER));
UpstreamLocalityStats localityStats = Iterables.getOnlyElement(clusterStats.upstreamLocalityStatsList());
assertThat(localityStats.locality()).isEqualTo(locality);
assertThat(localityStats.totalIssuedRequests()).isEqualTo(3L);
assertThat(localityStats.totalSuccessfulRequests()).isEqualTo(1L);
assertThat(localityStats.totalErrorRequests()).isEqualTo(1L);
assertThat(localityStats.totalRequestsInProgress()).isEqualTo(1L);
streamTracer3.streamClosed(Status.OK);
// stats recorder released
subchannel.shutdown();
clusterStats = Iterables.getOnlyElement(loadStatsManager.getClusterStatsReports(CLUSTER));
// Locality load is reported for one last time in case of loads occurred since the previous
// load report.
localityStats = Iterables.getOnlyElement(clusterStats.upstreamLocalityStatsList());
assertThat(localityStats.locality()).isEqualTo(locality);
assertThat(localityStats.totalIssuedRequests()).isEqualTo(0L);
assertThat(localityStats.totalSuccessfulRequests()).isEqualTo(1L);
assertThat(localityStats.totalErrorRequests()).isEqualTo(0L);
assertThat(localityStats.totalRequestsInProgress()).isEqualTo(0L);
clusterStats = Iterables.getOnlyElement(loadStatsManager.getClusterStatsReports(CLUSTER));
// no longer reported
assertThat(clusterStats.upstreamLocalityStatsList()).isEmpty();
}
use of io.grpc.LoadBalancerProvider in project grpc-java by grpc.
the class ClusterImplLoadBalancerTest method dropRpcsWithRespectToLbConfigDropCategories.
@Test
public void dropRpcsWithRespectToLbConfigDropCategories() {
LoadBalancerProvider weightedTargetProvider = new WeightedTargetLoadBalancerProvider();
WeightedTargetConfig weightedTargetConfig = buildWeightedTargetConfig(ImmutableMap.of(locality, 10));
ClusterImplConfig config = new ClusterImplConfig(CLUSTER, EDS_SERVICE_NAME, LRS_SERVER_INFO, null, Collections.singletonList(DropOverload.create("throttle", 500_000)), new PolicySelection(weightedTargetProvider, weightedTargetConfig), null);
EquivalentAddressGroup endpoint = makeAddress("endpoint-addr", locality);
deliverAddressesAndConfig(Collections.singletonList(endpoint), config);
when(mockRandom.nextInt(anyInt())).thenReturn(499_999, 999_999, 1_000_000);
// one leaf balancer
assertThat(downstreamBalancers).hasSize(1);
FakeLoadBalancer leafBalancer = Iterables.getOnlyElement(downstreamBalancers);
assertThat(leafBalancer.name).isEqualTo("round_robin");
assertThat(Iterables.getOnlyElement(leafBalancer.addresses).getAddresses()).isEqualTo(endpoint.getAddresses());
Subchannel subchannel = leafBalancer.helper.createSubchannel(CreateSubchannelArgs.newBuilder().setAddresses(leafBalancer.addresses).build());
leafBalancer.deliverSubchannelState(subchannel, ConnectivityState.READY);
assertThat(currentState).isEqualTo(ConnectivityState.READY);
PickResult result = currentPicker.pickSubchannel(mock(PickSubchannelArgs.class));
assertThat(result.getStatus().isOk()).isFalse();
assertThat(result.getStatus().getCode()).isEqualTo(Code.UNAVAILABLE);
assertThat(result.getStatus().getDescription()).isEqualTo("Dropped: throttle");
ClusterStats clusterStats = Iterables.getOnlyElement(loadStatsManager.getClusterStatsReports(CLUSTER));
assertThat(clusterStats.clusterServiceName()).isEqualTo(EDS_SERVICE_NAME);
assertThat(Iterables.getOnlyElement(clusterStats.droppedRequestsList()).category()).isEqualTo("throttle");
assertThat(Iterables.getOnlyElement(clusterStats.droppedRequestsList()).droppedCount()).isEqualTo(1L);
assertThat(clusterStats.totalDroppedRequests()).isEqualTo(1L);
// Config update updates drop policies.
config = new ClusterImplConfig(CLUSTER, EDS_SERVICE_NAME, LRS_SERVER_INFO, null, Collections.singletonList(DropOverload.create("lb", 1_000_000)), new PolicySelection(weightedTargetProvider, weightedTargetConfig), null);
loadBalancer.handleResolvedAddresses(ResolvedAddresses.newBuilder().setAddresses(Collections.singletonList(endpoint)).setAttributes(Attributes.newBuilder().set(InternalXdsAttributes.XDS_CLIENT_POOL, xdsClientPool).build()).setLoadBalancingPolicyConfig(config).build());
result = currentPicker.pickSubchannel(mock(PickSubchannelArgs.class));
assertThat(result.getStatus().isOk()).isFalse();
assertThat(result.getStatus().getCode()).isEqualTo(Code.UNAVAILABLE);
assertThat(result.getStatus().getDescription()).isEqualTo("Dropped: lb");
clusterStats = Iterables.getOnlyElement(loadStatsManager.getClusterStatsReports(CLUSTER));
assertThat(clusterStats.clusterServiceName()).isEqualTo(EDS_SERVICE_NAME);
assertThat(Iterables.getOnlyElement(clusterStats.droppedRequestsList()).category()).isEqualTo("lb");
assertThat(Iterables.getOnlyElement(clusterStats.droppedRequestsList()).droppedCount()).isEqualTo(1L);
assertThat(clusterStats.totalDroppedRequests()).isEqualTo(1L);
result = currentPicker.pickSubchannel(mock(PickSubchannelArgs.class));
assertThat(result.getStatus().isOk()).isTrue();
}
use of io.grpc.LoadBalancerProvider in project grpc-java by grpc.
the class ClusterImplLoadBalancerProviderTest method provided.
@Test
public void provided() {
LoadBalancerProvider provider = LoadBalancerRegistry.getDefaultRegistry().getProvider(XdsLbPolicies.CLUSTER_IMPL_POLICY_NAME);
assertThat(provider).isInstanceOf(ClusterImplLoadBalancerProvider.class);
}
use of io.grpc.LoadBalancerProvider in project grpc-java by grpc.
the class ClusterImplLoadBalancerProviderTest method providesLoadBalancer.
@Test
public void providesLoadBalancer() {
Helper helper = mock(Helper.class);
when(helper.getAuthority()).thenReturn("api.google.com");
LoadBalancerProvider provider = new ClusterImplLoadBalancerProvider();
LoadBalancer loadBalancer = provider.newLoadBalancer(helper);
assertThat(loadBalancer).isInstanceOf(ClusterImplLoadBalancer.class);
}
use of io.grpc.LoadBalancerProvider in project grpc-java by grpc.
the class ClusterManagerLoadBalancerProviderTest method registered.
@Test
public void registered() {
LoadBalancerProvider provider = LoadBalancerRegistry.getDefaultRegistry().getProvider("cluster_manager_experimental");
assertThat(provider).isInstanceOf(ClusterManagerLoadBalancerProvider.class);
}
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