}
    return previousValue;
  }

  @Override
  @CanIgnoreReturnValue
  @CheckForNull
  public V putEdgeValue(EndpointPair<N> endpoints, V value) {
    validateEndpoints(endpoints);
    return putEdgeValue(endpoints.nodeU(), endpoints.nodeV(), value);
  }

  @Override
  @CanIgnoreReturnValue
  public boolean removeNode(N node) {
    checkNotNull(node, "node");

	fs.Int32Var(&o.MirroringMaxEndpointsPerSubset, "mirroring-max-endpoints-per-subset", o.MirroringMaxEndpointsPerSubset, fmt.Sprintf("The...

		add chain ip kube-proxy reject-chain { comment "helper for @no-endpoint-services / @no-endpoint-nodeports" ; }
		add rule ip kube-proxy reject-chain reject

		add map ip kube-proxy no-endpoint-services { type ipv4_addr . inet_proto . inet_service : verdict ; comment "vmap to drop or reject packets to services with no endpoints" ; }

		// Re-build the endpoints for this service with a new discoverability policy.
		// Also update any internal caching.
		endpoints := ec.buildEndpointsForService(svc, true)
		shard := model.ShardKeyFromRegistry(ec)
		ec.opts.XDSUpdater.EDSUpdate(shard, svc.Hostname.String(), se.GetNamespace(), endpoints)
	}
}

   * also be non-null.
   *
   * <p>If either or both endpoints are not already present in this graph, this method will silently
   * {@link #addNode(Object) add} each missing endpoint to the graph.
   *
   * <p>If {@code edge} already connects an endpoint pair equal to {@code endpoints}, then this
   * method will have no effect.
   *

  @Override
  public boolean hasEdgeConnecting(EndpointPair<N> endpoints) {
    return delegate().hasEdgeConnecting(endpoints);
  }

  @Override
  public Optional<V> edgeValue(N nodeU, N nodeV) {
    return delegate().edgeValue(nodeU, nodeV);
  }

  @Override
  public Optional<V> edgeValue(EndpointPair<N> endpoints) {
    return delegate().edgeValue(endpoints);
  }

  @Override
  @CheckForNull

releaseNotes:
  - |
    **Added** experimental support for controlling service endpoint discoverability with Kubernetes Multi-Cluster
    Services (MCS). This feature is off by default, but can be enabled by setting the
    `ENABLE_MCS_SERVICE_DISCOVERY` flag in Istio. When enabled, Istio will make service endpoints
    only discoverable from within the same cluster by default. To make the service endpoints within a cluster

   * also be non-null.
   *
   * <p>If either or both endpoints are not already present in this graph, this method will silently
   * {@link #addNode(Object) add} each missing endpoint to the graph.
   *
   * <p>If {@code edge} already connects an endpoint pair equal to {@code endpoints}, then this
   * method will have no effect.
   *

  @Override
  public Set<E> edgesConnecting(EndpointPair<N> endpoints) {
    return delegate().edgesConnecting(endpoints);
  }

  @Override
  @CheckForNull
  public E edgeConnectingOrNull(N nodeU, N nodeV) {
    return delegate().edgeConnectingOrNull(nodeU, nodeV);
  }

  @Override
  @CheckForNull
  public E edgeConnectingOrNull(EndpointPair<N> endpoints) {
    return delegate().edgeConnectingOrNull(endpoints);

	// In one process, we can have only one compactor for one cluster.
	// Currently we rely on endpoints to differentiate clusters.
	for _, ep := range client.Endpoints() {
		if _, ok := endpointsMap[ep]; ok {
			klog.V(4).Infof("compactor already exists for endpoints %v", client.Endpoints())
			return
		}
	}
	for _, ep := range client.Endpoints() {
		endpointsMap[ep] = struct{}{}
	}

	if compactInterval != 0 {