title: ZuulException: forward error with Zuul-Eureka
body: <p>I'm facing a <code>ZuulException: forward error</code>  when routing with Zuul and Eureka.</p>
  
  <p>The error not occur during the first minutes but after 1 or 2 mn I get this weird error. </p>
  
  <p>I'm using <strong>spring boot 1.4</strong> and <strong>spring cloud Camden</strong> </p>
  
  <p>If you want to reproduce the error or see my project: <a href="https://github.com/Seb69/Spring-demo-ZuulException/tree/master" rel="nofollow">https://github.com/Seb69/Spring-demo-ZuulException/tree/master</a></p>
  
  <p>Eureka config:</p>
  
  <pre><code>server:
      port: 9999
  
  spring:
      application:
          name: eureka-server
  eureka:
     instance:
       hostname: localhost
     client:
       registerWithEureka: false
       fetchRegistry: false
       serviceUrl:
         defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/
  </code></pre>
  
  <p>Service-Gateway config (Zuul): </p>
  
  <pre><code>server:
      port: 1111
  spring:
      application:
          name: service-gateway
  
  # ZUUL (Load balancing)
  zuul:
      ignoredServices: '*'
      routes:
          service-server:
              stripPrefix: true
              path: /api/**
              serviceId:  SERVICE-SERVER
  
  
  # EUREKA (Service registry)
  eureka:
      instance:
          leaseRenewalIntervalInSeconds: 1
          leaseExpirationDurationInSeconds: 2
      client:
          serviceUrl:
              defaultZone: http://localhost:9999/eureka/
  </code></pre>
  
  <p>Service config:</p>
  
  <pre><code>server:
      port: 8095
  spring:
      application:
          name: service-server
  
  eureka:
      instance:
          leaseRenewalIntervalInSeconds: 1
          leaseExpirationDurationInSeconds: 2
      client:
          serviceUrl:
              defaultZone: http://localhost:9999/eureka/
  </code></pre>
  
  <p>Here is a short version of my stack trace:</p>
  
  <blockquote>
    <p>com.netflix.zuul.exception.ZuulException: Forwarding error</p>
    
    <p>Caused by: com.netflix.client.ClientException: Number of retries on
    next server exceeded max 1 retries, while making a call for:
    mbp-de-andre:8095</p>
    
    <p>Caused by: java.net.UnknownHostException: mbp-de-andre</p>
  </blockquote>