Is there advice on best practice for scaling Open OnDemand? We are currently running one server with Open OnDemand but at times have seen pretty high load. Have others implemented multiple OOD servers behind load balancer or other approach to manage high demand?
Yes others have used a proxy for OnDemand. I believe the only issue is that you need to use sticky sessions. We’re still looking for someone to contribute documentation for the same as we don’t run OnDemand behind a proxy.
Keep in mind, that high load you are seeing is likely from the Passenger “bug” that has is in the process of being corrected in near future OOD versions.