func (cb *ClusterBuilder) buildExternalSDSCluster(addr string) *cluster.Cluster {
	ep := &endpoint.LbEndpoint{
		HostIdentifier: &endpoint.LbEndpoint_Endpoint{
			Endpoint: &endpoint.Endpoint{
				Address: &core.Address{
					Address: &core.Address_Pipe{
						Pipe: &core.Pipe{
							Path: addr,
						},
					},
				},
			},
		},
	}

	if f.BufListener != nil {
		opts = append(opts, grpc.WithContextDialer(func(context.Context, string) (net.Conn, error) {
			return f.BufListener.Dial()
		}))
	}
	adscConn, err := adsc.New(f.Listener.Addr().String(), &adsc.ADSConfig{
		Config: adsc.Config{
			IP:        p.IPAddresses[0],
			NodeType:  p.Type,
			Meta:      p.Metadata.ToStruct(),
			Locality:  p.Locality,
			Namespace: p.ConfigNamespace,

		bres := make(chan string)
		go runCommand(ca, ares)
		go runCommand(cb, bres)
		if got, want := <-ares, fmt.Sprintf("fd3: listener %s\n", la.Addr()); got != want {
			t.Errorf("iteration %d, process A got:\n%s\nwant:\n%s\n", i, got, want)
		}
		if got, want := <-bres, fmt.Sprintf("fd3: listener %s\n", lb.Addr()); got != want {
			t.Errorf("iteration %d, process B got:\n%s\nwant:\n%s\n", i, got, want)
		}
		la.Close()
		lb.Close()

	}
	return nil
}

func GetConnectionAddress(ctx context.Context) string {
	peerInfo, ok := peer.FromContext(ctx)
	peerAddr := "unknown"
	if ok {
		peerAddr = peerInfo.Addr.String()
	}
	return peerAddr
}

func (am *authenticationManager) FailedMessages() string {
	return strings.Join(am.authFailMsgs, "; ")
}

func ExtractBearerToken(ctx context.Context) (string, error) {

		return errors.New("server is not ready to serve discovery information")
	}

	ctx := stream.Context()
	peerAddr := "0.0.0.0"
	if peerInfo, ok := peer.FromContext(ctx); ok {
		peerAddr = peerInfo.Addr.String()
	}

	if err := s.WaitForRequestLimit(stream.Context()); err != nil {
		deltaLog.Warnf("ADS: %q exceeded rate limit: %v", peerAddr, err)

            %island1:3 = tf_executor.island {
              %add1 = "tf.Add"(%arg0, %arg1) : (tensor<*xi32>, tensor<i32>) -> tensor<*xi32>
              %add2 = "tf.Add"(%add1, %arg1) : (tensor<*xi32>, tensor<i32>) -> tensor<*xi32>
              %res = "tf.Print"(%add2) { message = "add result" } : (tensor<*xi32>) -> (tensor<*xi32>)
              tf_executor.yield %add1, %add2 : tensor<*xi32>, tensor<*xi32>
            }

				t.Errorf("Expected %d listeners, got %d (%v)", tt.numListenersOnServicePort, len(listenersToCheck), listenersToCheck)
			}

			if tt.useAutoAllocatedAddress {
				for _, addr := range listenersToCheck {
					if !strings.HasPrefix(addr, "240.240") {
						t.Errorf("Expected %d listeners on service port 79, got %d (%v)", tt.numListenersOnServicePort, len(listenersToCheck), listenersToCheck)
					}
				}
			}
		})

				count += len(ss.Addresses)
				for i := range ss.Addresses {
					if len(list) == max {
						more = true
						// the next loop is redundant
						break
					}
					addr := &ss.Addresses[i]
					hostPort := net.JoinHostPort(addr.IP, strconv.Itoa(int(port.Port)))
					list = append(list, hostPort)
				}
			}
		}
	}

	ret := strings.Join(list, ",")
	if more {

		// Only aggregate-typed arguments that are not address-taken can be
		// partially live.
		lv.partLiveArgs[n] = true
	}

	var effect liveEffect
	// Read is a read, obviously.
	//
	// Addr is a read also, as any subsequent holder of the pointer must be able
	// to see all the values (including initialization) written so far.
	// This also prevents a variable from "coming back from the dead" and presenting

	globalObjLayerMutex.Lock()
	globalObjectAPI = objLayer
	globalObjLayerMutex.Unlock()

	// initialize peer rpc
	host, port := mustSplitHostPort(testServer.Server.Listener.Addr().String())
	globalMinioHost = host
	globalMinioPort = port
	globalMinioAddr = getEndpointsLocalAddr(testServer.Disks)

	initAllSubsystems(ctx)

	globalEtcdClient = nil