Use of the Android network service discovery (NSD) Protocol
Android's Network Service Discovery Protocol (NSD) can be used to discover an application on a nearby device in a small network. This is very helpful for some social networks and multiplayer games.
Android NSD can be used in four ways:
1.Register a network
Eureka Service Registration and DiscoveryI. Overview of Eureka1. Eureka features(1) Eureka is a rest-based service for locating services to enable mid-tier service discovery and failover in the cloud.(2) Eureka Supervisor Service Registration and
Eureka is a component of the Springcloud family, because it has service registration and discovery mechanism, so it is very suitable for the registration center. Eureka has the service side and the client, the registration center serves as the service side, we provide the service
I wanted to write an article about configuring ad RMS to support exists. Before that, I must describe the working mechanism of the RMS client service discovery.
What is ad RMS client service discovery (word in the RMS document )? To put it bluntly, how does one find the RMS server on the RMS client.
There are three way
What does 1.eureka do?The last article said that the microservices need to communicate with each other, then the communication requires a variety of network information, we can use hard-coded way to communicate, but this is obviously inappropriate, it is impossible to say that a microservices address changes, then the entire system of all microservices are redeployed, obviously inappropriate, Then we need a service
What is Spring cloud?Spring Cloud is an ordered collection of frames. It uses spring boot's development convenience to subtly simplify the development of distributed system infrastructures, such as service discovery registration, Configuration center, message bus, load balancer, circuit breakers, data monitoring, and so on, all of which can be started and deployed with spring boot development style. Spring
Discovery and consumption of servicesWith service centers and service providers, let's implement a service consumer:Service consumers mainly complete two tasks-service discovery and service
The Official document address is: http://cloud.spring.io/spring-cloud-static/Dalston.SR3/#spring-cloud-eureka-serverIn the example I have done some tests in: http://git.oschina.net/dreamingodd/spring-cloud-preparationService Discovery:eureka Server Services discovery: Eureka service-side how to Include Eureka Server creating Eureka service-sideTo include Eureka S
services ' IP, ports and other information in the same way as the environment variables when starting each service.
12.2 Creating Kube-dns$ kubectl create -f ~/kubernetes-starter/target/services/kube-dns.yaml#看看启动是否成功$ kubectl -n kube-system get pods13. Try sledgehammer again.Finally, the secure version of the Kubernetes cluster we deployed is complete.Next we use the new cluster to review the previously learned commands, and then recognize some
Project:1. Automatically discover the Nginx scheduler and the backend Apache built Web services cluster;2. Use custom parameters to monitor the data and rate of Nginx service on the scheduler;3. Use custom parameters to monitor the relevant statistics and rate data of the back-end Apache Service (optional)4. Develop a monitoring template for the Nginx Scheduler and the backend Apache
Service Discovery IntroductionIn Android Wifidirect Learning (a), a simple description of how to use Wifidirect for search-connect-transfer.The problem with this is that you will be searching all the nearby network devices that are in the Wifidirect search state, and these devices are not necessarily the one you want to connect to.The Android Wifidirect API provides a search method that searches only specif
Spring Cloud official documentation Chinese version-service discovery: Eureka server, cloudeureka
Official documentation: http://cloud.spring.io/spring-cloud-static/Dalston.SR3/#spring-cloud-eureka-server
In this article, I did some tests in: http://git.oschina.net/dreamingodd/spring-cloud-preparation
Service Discovery
Brief introductionIn micro-service, service registration and discovery play a key role in the management of each sub-service subsystem. As the system expands more and more, and the number of systems split into microservices increases correspondingly, the URL to manage and access these microservices becomes tricky, and
the service;
Targetport:service access to container ports in pod;
Nodeport:service port for external service delivery;
Create inference-service-0:
$ kubectl create-f Inference-service.yaml
To view the running status:
$ kubectl Get Svc
NAME cluster-ip external-ip PORT (S) Age
inference-service-0 xx.xx.xx.xx
Check to s
What does Spring cloud produce?According to this introduction of the official website, we can know that Spring cloud is a tool for developers, and the use of this tool is to help developers quickly develop a more general distributed system .(while tools include: Configuration management, service discovery, circuit breakers, routing, Micro Proxies, control bus, one-time tokens, global locks, leading election
Kube-dns compositionKube-dns can solve the service discovery problem, k8s registers the service name as a domain name into Kube-dns, and can access the services it provides through the name of the service.Kube-dns of four components: ETCD, which is used to save DNS rules. kube2sky, the role is to write DNS rules. skydns, provides DNS resolution services.
maintain and prone to problems.Therefore, in order to solve this service dependency, service registration and release came into being.
1.2 mechanism
Service registration and discovery are mainly divided into the following points.
Service Information Release
This
Service discovery mechanism Kubernetes provides two ways to discover the service:1. Environment Variables When the pod is running, Kubernetes writes the information for the service that existed before This method requires that the pod must be started after the service.
ETCD is a highly available key-value storage system that is used primarily for shared configuration and service discovery. ETCD is developed and maintained by CoreOS and is inspired by ZooKeeper and Doozer, which is written in the go language and handles log replication through the raft consistency algorithm to ensure strong consistency. Raft is a new consistency algorithm from Stanford, suitable for the lo
This service is now used to be very small, and it is recommended that you use it manually, so that we can use it when we need to use it, If your computer discovers that this service corresponds to the Svchost.exe process using the CPU very much, can turn it off, but it is not recommended to permanently disable it to start, let's learn more about SSDP Discovery
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