[ILUG-BOM] Fail-Over & Load-balancing

Hello All,

We are trying to identify the right approach to do Fail-Over and Load Balancing in Linux server (Centos7), which contains Mariadb(mysql) and web-server (nginx) with some services such as Video On Demand, Games, etc. (streaming through Intranet, not Internet)

Please guide, to select the right technology/solution (Ofcource OpenSource) to do so. Its seems complicated for me because of the dynamic data (eg: If a user watching video and fail over happens, he should get seamless streaming without interruption).

I have considered HA-Cluster (Heartbeat) for Failover and HA-Proxy for load balancing, but still not sure, how to handle dynamic data fail over.