What are the differences between Kubernetes HPA and VPA?
Kubernetes HPA (Horizontal Pod Autoscaler) scales the number of pods based on CPU utilization or other select metrics, while VPA (Vertical Pod Autoscaler) adjusts the resource requests and limits for containers in a pod.
Can you explain how HPA works in more detail?
Sure! HPA monitors the metrics of pods and automatically increases or decreases the number of pod replicas to maintain the desired performance level.
What about VPA? How does it determine resource needs?
VPA analyzes the resource usage of containers over time and recommends adjustments to their CPU and memory requests to optimize performance.
Are there scenarios where I should use one over the other?
Yes, use HPA when you need to handle varying loads by scaling out, and VPA when you want to optimize resource allocation for existing pods.
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