Examples with PriorityLbConfig io.grpc.xds.PriorityLoadBalancerProvider.PriorityLbConfig used on opensource projects

Example 11 with PriorityLbConfig

use of io.grpc.xds.PriorityLoadBalancerProvider.PriorityLbConfig in project grpc-java by grpc.

the class ClusterResolverLoadBalancerTest method handleEdsResource_ignorePrioritiesWithNoHealthyEndpoints.

@Test
public void handleEdsResource_ignorePrioritiesWithNoHealthyEndpoints() {
    ClusterResolverConfig config = new ClusterResolverConfig(Collections.singletonList(edsDiscoveryMechanism1), roundRobin);
    deliverLbConfig(config);
    EquivalentAddressGroup endpoint1 = makeAddress("endpoint-addr-1");
    EquivalentAddressGroup endpoint2 = makeAddress("endpoint-addr-2");
    LocalityLbEndpoints localityLbEndpoints1 = LocalityLbEndpoints.create(Collections.singletonList(LbEndpoint.create(endpoint1, 100, false)), 10, /* localityWeight */
    1);
    LocalityLbEndpoints localityLbEndpoints2 = LocalityLbEndpoints.create(Collections.singletonList(LbEndpoint.create(endpoint2, 200, true)), 10, /* localityWeight */
    2);
    String priority2 = CLUSTER1 + "[priority2]";
    xdsClient.deliverClusterLoadAssignment(EDS_SERVICE_NAME1, ImmutableMap.of(locality1, localityLbEndpoints1, locality2, localityLbEndpoints2));
    FakeLoadBalancer childBalancer = Iterables.getOnlyElement(childBalancers);
    assertThat(((PriorityLbConfig) childBalancer.config).priorities).containsExactly(priority2);
}

Example 12 with PriorityLbConfig

use of io.grpc.xds.PriorityLoadBalancerProvider.PriorityLbConfig in project grpc-java by grpc.

the class ClusterResolverLoadBalancerTest method edsClustersWithRingHashEndpointLbPolicy.

@Test
public void edsClustersWithRingHashEndpointLbPolicy() {
    ClusterResolverConfig config = new ClusterResolverConfig(Collections.singletonList(edsDiscoveryMechanism1), ringHash);
    deliverLbConfig(config);
    assertThat(xdsClient.watchers.keySet()).containsExactly(EDS_SERVICE_NAME1);
    assertThat(childBalancers).isEmpty();
    // One priority with two localities of different weights.
    EquivalentAddressGroup endpoint1 = makeAddress("endpoint-addr-1");
    EquivalentAddressGroup endpoint2 = makeAddress("endpoint-addr-2");
    EquivalentAddressGroup endpoint3 = makeAddress("endpoint-addr-3");
    LocalityLbEndpoints localityLbEndpoints1 = LocalityLbEndpoints.create(Arrays.asList(LbEndpoint.create(endpoint1, 0, /* loadBalancingWeight */
    true), LbEndpoint.create(endpoint2, 0, /* loadBalancingWeight */
    true)), 10, /* localityWeight */
    1);
    LocalityLbEndpoints localityLbEndpoints2 = LocalityLbEndpoints.create(Collections.singletonList(LbEndpoint.create(endpoint3, 60, /* loadBalancingWeight */
    true)), 50, /* localityWeight */
    1);
    xdsClient.deliverClusterLoadAssignment(EDS_SERVICE_NAME1, ImmutableMap.of(locality1, localityLbEndpoints1, locality2, localityLbEndpoints2));
    assertThat(childBalancers).hasSize(1);
    FakeLoadBalancer childBalancer = Iterables.getOnlyElement(childBalancers);
    assertThat(childBalancer.addresses).hasSize(3);
    EquivalentAddressGroup addr1 = childBalancer.addresses.get(0);
    EquivalentAddressGroup addr2 = childBalancer.addresses.get(1);
    EquivalentAddressGroup addr3 = childBalancer.addresses.get(2);
    // Endpoints in locality1 have no endpoint-level weight specified, so all endpoints within
    // locality1 are equally weighted.
    assertThat(addr1.getAddresses()).isEqualTo(endpoint1.getAddresses());
    assertThat(addr1.getAttributes().get(InternalXdsAttributes.ATTR_SERVER_WEIGHT)).isEqualTo(10);
    assertThat(addr2.getAddresses()).isEqualTo(endpoint2.getAddresses());
    assertThat(addr2.getAttributes().get(InternalXdsAttributes.ATTR_SERVER_WEIGHT)).isEqualTo(10);
    assertThat(addr3.getAddresses()).isEqualTo(endpoint3.getAddresses());
    assertThat(addr3.getAttributes().get(InternalXdsAttributes.ATTR_SERVER_WEIGHT)).isEqualTo(50 * 60);
    assertThat(childBalancer.name).isEqualTo(PRIORITY_POLICY_NAME);
    PriorityLbConfig priorityLbConfig = (PriorityLbConfig) childBalancer.config;
    assertThat(priorityLbConfig.priorities).containsExactly(CLUSTER1 + "[priority1]");
    PriorityChildConfig priorityChildConfig = Iterables.getOnlyElement(priorityLbConfig.childConfigs.values());
    assertThat(priorityChildConfig.ignoreReresolution).isTrue();
    assertThat(priorityChildConfig.policySelection.getProvider().getPolicyName()).isEqualTo(CLUSTER_IMPL_POLICY_NAME);
    ClusterImplConfig clusterImplConfig = (ClusterImplConfig) priorityChildConfig.policySelection.getConfig();
    assertClusterImplConfig(clusterImplConfig, CLUSTER1, EDS_SERVICE_NAME1, LRS_SERVER_INFO, 100L, tlsContext, Collections.<DropOverload>emptyList(), "ring_hash_experimental");
    RingHashConfig ringHashConfig = (RingHashConfig) clusterImplConfig.childPolicy.getConfig();
    assertThat(ringHashConfig.minRingSize).isEqualTo(10L);
    assertThat(ringHashConfig.maxRingSize).isEqualTo(100L);
}

Example 13 with PriorityLbConfig

use of io.grpc.xds.PriorityLoadBalancerProvider.PriorityLbConfig in project grpc-java by grpc.

the class ClusterResolverLoadBalancerTest method edsResourceRevoked_dnsResolutionError_shutDownChildLbPolicyAndReturnErrorPicker.

@Test
public void edsResourceRevoked_dnsResolutionError_shutDownChildLbPolicyAndReturnErrorPicker() {
    ClusterResolverConfig config = new ClusterResolverConfig(Arrays.asList(edsDiscoveryMechanism1, logicalDnsDiscoveryMechanism), roundRobin);
    deliverLbConfig(config);
    assertThat(xdsClient.watchers.keySet()).containsExactly(EDS_SERVICE_NAME1);
    FakeNameResolver resolver = assertResolverCreated("/" + DNS_HOST_NAME);
    assertThat(childBalancers).isEmpty();
    reset(helper);
    EquivalentAddressGroup endpoint = makeAddress("endpoint-addr-1");
    LocalityLbEndpoints localityLbEndpoints = LocalityLbEndpoints.create(Collections.singletonList(LbEndpoint.create(endpoint, 100, true)), 10, /* localityWeight */
    1);
    xdsClient.deliverClusterLoadAssignment(EDS_SERVICE_NAME1, Collections.singletonMap(locality1, localityLbEndpoints));
    resolver.deliverError(Status.UNKNOWN.withDescription("I am lost"));
    assertThat(childBalancers).hasSize(1);
    FakeLoadBalancer childBalancer = Iterables.getOnlyElement(childBalancers);
    assertThat(((PriorityLbConfig) childBalancer.config).priorities).containsExactly(CLUSTER1 + "[priority1]");
    assertAddressesEqual(Collections.singletonList(endpoint), childBalancer.addresses);
    assertThat(childBalancer.shutdown).isFalse();
    xdsClient.deliverResourceNotFound(EDS_SERVICE_NAME1);
    assertThat(childBalancer.shutdown).isTrue();
    verify(helper).updateBalancingState(eq(ConnectivityState.TRANSIENT_FAILURE), pickerCaptor.capture());
    assertPicker(pickerCaptor.getValue(), Status.UNAVAILABLE.withDescription("I am lost"), null);
}

Example 14 with PriorityLbConfig

use of io.grpc.xds.PriorityLoadBalancerProvider.PriorityLbConfig in project grpc-java by grpc.

the class ClusterResolverLoadBalancerTest method onlyLogicalDnsCluster_endpointsResolved.

@Test
public void onlyLogicalDnsCluster_endpointsResolved() {
    ClusterResolverConfig config = new ClusterResolverConfig(Collections.singletonList(logicalDnsDiscoveryMechanism), roundRobin);
    deliverLbConfig(config);
    FakeNameResolver resolver = assertResolverCreated("/" + DNS_HOST_NAME);
    assertThat(childBalancers).isEmpty();
    EquivalentAddressGroup endpoint1 = makeAddress("endpoint-addr-1");
    EquivalentAddressGroup endpoint2 = makeAddress("endpoint-addr-2");
    resolver.deliverEndpointAddresses(Arrays.asList(endpoint1, endpoint2));
    assertThat(childBalancers).hasSize(1);
    FakeLoadBalancer childBalancer = Iterables.getOnlyElement(childBalancers);
    assertThat(childBalancer.name).isEqualTo(PRIORITY_POLICY_NAME);
    PriorityLbConfig priorityLbConfig = (PriorityLbConfig) childBalancer.config;
    String priority = Iterables.getOnlyElement(priorityLbConfig.priorities);
    PriorityChildConfig priorityChildConfig = priorityLbConfig.childConfigs.get(priority);
    assertThat(priorityChildConfig.ignoreReresolution).isFalse();
    assertThat(priorityChildConfig.policySelection.getProvider().getPolicyName()).isEqualTo(CLUSTER_IMPL_POLICY_NAME);
    ClusterImplConfig clusterImplConfig = (ClusterImplConfig) priorityChildConfig.policySelection.getConfig();
    assertClusterImplConfig(clusterImplConfig, CLUSTER_DNS, null, LRS_SERVER_INFO, 300L, null, Collections.<DropOverload>emptyList(), "pick_first");
    assertAddressesEqual(Arrays.asList(endpoint1, endpoint2), childBalancer.addresses);
}

Example 15 with PriorityLbConfig

use of io.grpc.xds.PriorityLoadBalancerProvider.PriorityLbConfig in project grpc-java by grpc.

the class PriorityLoadBalancerTest method readyToConnectDoesNotFailOverButUpdatesPicker.

@Test
public void readyToConnectDoesNotFailOverButUpdatesPicker() {
    PriorityChildConfig priorityChildConfig0 = new PriorityChildConfig(new PolicySelection(fooLbProvider, new Object()), true);
    PriorityChildConfig priorityChildConfig1 = new PriorityChildConfig(new PolicySelection(fooLbProvider, new Object()), true);
    PriorityLbConfig priorityLbConfig = new PriorityLbConfig(ImmutableMap.of("p0", priorityChildConfig0, "p1", priorityChildConfig1), ImmutableList.of("p0", "p1"));
    priorityLb.handleResolvedAddresses(ResolvedAddresses.newBuilder().setAddresses(ImmutableList.<EquivalentAddressGroup>of()).setLoadBalancingPolicyConfig(priorityLbConfig).build());
    assertThat(fooBalancers).hasSize(1);
    assertThat(fooHelpers).hasSize(1);
    Helper helper0 = Iterables.getOnlyElement(fooHelpers);
    // p0 gets READY.
    final Subchannel subchannel0 = mock(Subchannel.class);
    helper0.updateBalancingState(READY, new SubchannelPicker() {

        @Override
        public PickResult pickSubchannel(PickSubchannelArgs args) {
            return PickResult.withSubchannel(subchannel0);
        }
    });
    assertCurrentPickerPicksSubchannel(subchannel0);
    // p0 goes to CONNECTING
    helper0.updateBalancingState(IDLE, BUFFER_PICKER);
    assertCurrentPickerIsBufferPicker();
    // no failover happened
    assertThat(fooBalancers).hasSize(1);
    assertThat(fooHelpers).hasSize(1);
    // resolution update without priority change does not trigger failover
    Attributes.Key<String> fooKey = Attributes.Key.create("fooKey");
    priorityLb.handleResolvedAddresses(ResolvedAddresses.newBuilder().setAddresses(ImmutableList.<EquivalentAddressGroup>of()).setLoadBalancingPolicyConfig(priorityLbConfig).setAttributes(Attributes.newBuilder().set(fooKey, "barVal").build()).build());
    assertCurrentPickerIsBufferPicker();
    // no failover happened
    assertThat(fooBalancers).hasSize(1);
    assertThat(fooHelpers).hasSize(1);
}