KubeCon + CloudNativeCon Europe 2020

As Kubernetes continues to grow, scalability is increasingly important. One of the key bottlenecks that emerged as clusters got larger was related to network endpoints. They became quite slow at scale, and had limitations preventing them from growing beyond approximately 5,000 endpoints per Service.

In this talk, Rob will show how the scalability of network endpoints has been dramatically increased in Kubernetes. He’ll cover the design and implementation of EndpointSlices, along with the impact they’ve had. He’ll walk through the process of profiling key components in the Kubernetes codebase to identify areas that could be optimized. Finally, he’ll show how all this work has improved Kubernetes network scalability, including real world performance metrics from large clusters with over 100,000 endpoints.