Although Mafalda SFU is mainly focused on vertical scaling of Mediasoup and the WebRTC stack, the main problem I’ve found companies are facing is about how to easily implement Medisoup horizontal scaling. I’ve been working on a solution for this problem for a while on, and since Mafalda is build on top of Mediasoup, it’s also needed to help it to provide transparent vertical and horizontal scaling, so let’s see how it works.

When aproaching the horizontal scaling of WebRTC servers, we have two main aproachs: decentralized P2P, and using a central server. Each one has its own drawbacks and advantages, and I had difficulties to identify what aproach was the best, since I usually have a personal preference for pure P2P architectures, but they are not the most simple nor always the more efficient ones. So when deciding how to aproach Mafalda horizontal scaling, I needed to consider the pros and cons of each use case I would need, and here we have my conclusions.

Mafalda SFU is a massively vertical and horizontal scalable SFU built on top of Mediasoup. This allow to have (theorically) unlimited sized WebRTC-based video room calls.