Vertical Pod Autoscaler in Kubernetes: Pros, Cons, and Limitations
Kubernetes provides several autoscaling mechanisms, and one of them is the Vertical Pod Autoscaler (VPA). Unlike the Horizontal Pod Autoscaler (HPA) which scales the number of pods, VPA adjusts CPU and memory requests/limits for individual pods. This article breaks down when VPA makes sense, what advantages it brings, and the critical limitations you must understand before deploying it in production. 1. What Is Vertical Pod Autoscaler? VPA automatically adjusts resource requests and limits for containers based on historical usage. ...