netflix-ribbon

I am working on Spring Boot Eureka Client Application with Ribbon Load Balancer. I have two instances of the server registered with Eureka with the name "TEST". On the client side, I have the following code to fetch the server from Eureka. @Configuration @ComponentScan @EnableAutoConfiguration @EnableEurekaClient @RestController public class EurekaConsumerApplication { @Autowired DiscoveryClient discoveryClient; @Autowired RestTemplate restTemplate; @RequestMapping(value = "/",method = RequestMethod.GET) String consumer(){ InstanceInfo instance = discoveryClient.getNextServerFromEureka("TEST",

I understand @LoadBalanced indicates the Rest template should be based on Client Side Load Balancing using Ribbon and checks Eureka server for resolving the service name to host/port. What is the use of @RibbonClient . Is it to support native Ribbon Client LB without Eureka and also support Eureka Discover when configured with DiscoveryEnabledNIWSServerList ? TL;DR : @LoadBalanced is a marker annotation & @RibbonClient is used for configuration purposes. @LoadBalanced Used as a marker annotation indicating that the annotated RestTemplate should use a RibbonLoadBalancerClient for interacting

Background I'm using Spring cloud Brixton.RC2, with Zuul and Eureka. I have one gateway service with @EnableZuulProxy and a book-service with a status method. Via configuration I can emulate work on the status method by sleeping a defined amount of time. The Zuul route is simple zuul.routes.foos.path=/foos/** zuul.routes.foos.serviceId=reservation-service I run two instances of the book-service . When I set the sleeping time below the Hystrix timeout threshold (1000ms) I can see requests going to both instance of the book services. This works well. Problem I understand that if the Hystrix

I have trouble understanding the connection between Zuul and Ribbon. I think I got Zuul clear. It's a reverse proxy I can contact to reach one of my several instances of a service. It will pick the right server using a round-robin algorithm or whatever you configure it to do. It's a traditional load-balancer. To know the instances available it can use a registry like Eureka. But I've got more trouble with Ribbon. It's sold as a client-side load balancer but what does it mean ? It doesn't need an external server ? Ribbon is embedded in the client the same way an Eureka client is ? If so how