Netflix Ribbon throws No instances available for MY-MICROSERVICE exception - spring

Question

My application uses Eureka and Ribbon. I'm trying to get two microservices to talk to each other. Below is my method of concern.
#Autowired #LoadBalanced
private RestTemplate client;
#Autowired
private DiscoveryClient dClient;
public String getServices() {
List<String> services = dClient.getServices();
List<ServiceInstance> serviceInstances = new ArrayList<>();
List<String> serviceHosts = new ArrayList<>();
for(String service : services) {
serviceInstances.addAll(dClient.getInstances(service));
}
for(ServiceInstance service : serviceInstances) {
serviceHosts.add(service.getHost());
}
//throws No instances available exception here
try {
System.out.println(this.client.getForObject("http://MY-MICROSERVICE/rest/hello", String.class, new HashMap<String, String>()));
}
catch(Exception e) {
e.printStackTrace();
}
return serviceHosts.toString();
}
The method returns an array of two hostnames(IP). So DiscoveryClient is able to see instances of the two services registered with Eureka. But RestTemplate or more precisely Ribbon throws IllegalStateExcpetion: No instances available exception.
DynamicServerListLoadBalancer for client MY-MICROSERVICE initialized: DynamicServerListLoadBalancer:{NFLoadBalancer:name=MY-MICROSERVICE,current list of Servers=[],Load balancer stats=Zone stats: {},Server stats: []}ServerList:org.springframework.cloud.netflix.ribbon.eureka.DomainExtractingServerList#23edc38f
java.lang.IllegalStateException: No instances available for MY-MICROSERVICE
at org.springframework.cloud.netflix.ribbon.RibbonLoadBalancerClient.execute(RibbonLoadBalancerClient.java:119)
at org.springframework.cloud.netflix.ribbon.RibbonLoadBalancerClient.execute(RibbonLoadBalancerClient.java:99)
at org.springframework.cloud.client.loadbalancer.LoadBalancerInterceptor.intercept(LoadBalancerInterceptor.java:58)
Even the Eureka dashboard shows two services registered. I feel the problem is specifically with Ribbon. Here's my config file.
spring.application.name="my-microservice"
logging.level.org.springframework.boot.autoconfigure.logging=INFO
spring.devtools.restart.enabled=true
spring.devtools.add-properties=true
server.ribbon.eureka.enabled=true
eureka.client.serviceUrl.defaultZone = http://localhost:8761/eureka/
The other microservice also has the same configs except for a different name. What's the problem here?

Answer 1

Solved. I was using application.yml with Eureka-server and application.properties with the client. Once I converted everything to yml, all works fine.
spring:
application:
name: "my-microservice"
devtools:
restart:
enabled: true
add-properties: true
logging:
level:
org.springframework.boot.autoconfigure.logging: INFO
eureka:
client:
serviceUrl:
defaultZone: "http://localhost:8761/eureka/"
This is the yml file for both apps which only differ by the application name.