I am trying to deploy a codeigniter application on openshift with haproxy scaling enabled. I am using PHP 5.3 catridge. I am getting 503 No server is available to handle this request error. I tried googling a lot but I couldn't get a precise solution for this. Have already tried to restart the application, but of no use.
If you're still having issues I would check out this CodeIgniter OpenShift quickstart here https://github.com/openshift/CodeIgniterQuickStart. If anything you can take a look and see how this quickstart developer went about building it and then apply it to your application.