Load Balancing for Your Own Site: Multi-Instance Deployment, Health Checks, Session Persistence, and Failover
The trigger for putting load balancing on your own site is daily traffic consistently above 50,000, a single 4-core 8GB machine sitting above 60% CPU for long stretches, or you've already been burned once by "the server died and the whole site went down." The bar for doing it right: at least 2 app...

