A Service Fabric application is composed of multiple Microservices. The Service Fabric cluster manager may deploy your service instances to any nodes in the cluster, which can make it difficult to discover the service by the client application.

Every Microservice in a Service Fabric application is identified by a string name. A Service Fabric cluster has multiple instances of the naming service, which resolves service names to a location in the cluster. A client can securely communicate with any node in the cluster using the naming service to resolve a service name and its location. When a client requests the location of a Microservice, the naming service responds with the actual machine IP address and port where it is currently running. This makes the Microservice independent of the hardware on which it is hosted.