How to Scale SignalR in .NET with Redis

Summary

The transcript discusses scaling SignalR, a real-time communication technology in .NET applications, using Redis as a backplane to solve connection management challenges across multiple servers. The key problem addressed is how different application servers cannot communicate with each other when using in-memory storage, which prevents seamless message broadcasting to all connected clients. By introducing Redis as a backplane, SignalR messages can now flow through a central system that ensures all servers receive and can distribute messages consistently, enabling more robust and scalable real-time communication. The practical takeaway is that developers can use Redis to effectively scale SignalR applications while maintaining local connection management and enabling global message distribution.