[centos ip]$ oc get pods
NAME READY STATUS RESTARTS AGE
mysql 1/1 Running 0 1d
wordpress 1/1 Running 2 1d
[centos ip]$ oc describe service wpfrontend
Port: <unnamed> 5055/TCP
NodePort: <unnamed> 32200/TCP
Session Affinity: None
From: philippe lafoucriere tech-angels com
Date: Thu, 26 Nov 2015 08:30:46 -0500
Subject: Re: Unable to access route: 503
To: dencowboy hotmail com
CC: flozano redhat com; users lists openshift redhat com
"No server available to handle the request."
Could you show your associated service?
Are you sure the pod are in a running state, without restarting repeatedly?
Finally, do you use readiness/liveness probes? (if your pods are running, but not considered as "ready", the LB won't use them, and therefore, "No server available to handle the request." :))