title: Istio - Connection timeout when calling service-two from service-one (examples)
body: <p>I'm following the tutorials to evaluate Istio as the service mesh for my K8s cluster, but for some reason I cannot make the simple example that uses a couple of services to work properly:</p>
  
  <p><a href="https://istio.io/docs/tasks/integrating-services-into-istio.html" rel="nofollow noreferrer">https://istio.io/docs/tasks/integrating-services-into-istio.html</a></p>
  
  <p>If I try to call service-two from service-one, I get this error:</p>
  
  <pre><code># kubectl exec -ti ${CLIENT} -- curl -v service-two:80
  Defaulting container name to app.
  Use 'kubectl describe pod/service-one-714088666-73fkp' to see all of the containers in this pod.
  * Rebuilt URL to: service-two:80/
  *   Trying 10.102.51.89...
  * connect to 10.102.51.89 port 80 failed: Connection refused
  * Failed to connect to service-two port 80: Connection refused
  * Closing connection 0
  curl: (7) Failed to connect to service-two port 80: Connection refused
  </code></pre>
  
  <p>However, if I try to connect to service-two from another service in my cluster, even in a different namespace, then it works:</p>
  
  <pre><code># kubectl exec -ti redis-4054078334-mj287 -n redis -- curl -v service-two.default:80
  * Rebuilt URL to: service-two.default:80/
  * Hostname was NOT found in DNS cache
  *   Trying 10.102.51.89...
  * Connected to service-two.default (10.102.51.89) port 80 (#0)
  &gt; GET / HTTP/1.1
  &gt; User-Agent: curl/7.38.0
  &gt; Host: service-two.default
  &gt; Accept: */*
  &gt; 
  &lt; HTTP/1.1 200 OK
  * Server envoy is not blacklisted
  &lt; server: envoy
  &lt; date: Sat, 19 Aug 2017 14:43:01 GMT
  &lt; content-type: text/plain
  &lt; x-envoy-upstream-service-time: 2
  &lt; transfer-encoding: chunked
  &lt; 
  CLIENT VALUES:
  client_address=127.0.0.1
  command=GET
  real path=/
  query=nil
  request_version=1.1
  request_uri=http://service-two.default:8080/
  
  
  SERVER VALUES:
  server_version=nginx: 1.10.0 - lua: 10001
  
  
  HEADERS RECEIVED:
  accept=*/*
  content-length=0
  host=service-two.default
  user-agent=curl/7.38.0
  x-b3-sampled=1
  x-b3-spanid=00000caf6e052e86
  x-b3-traceid=00000caf6e052e86
  x-envoy-expected-rq-timeout-ms=15000
  x-forwarded-proto=http
  x-ot-span-context=00000caf6e052e86;00000caf6e052e86;0000000000000000;cs
  x-request-id=1290973c-7bca-95d2-8fa8-80917bb404ad
  BODY:
  * Connection #0 to host service-two.default left intact
  -no body in request-
  </code></pre>
  
  <p>Any reason or explanation why I get this unexpected behaviour?</p>
  
  <p>Thanks.</p>