I am trying to set an horizontal pod autoscaling metrics on my GKE deployment based on absolute value but still didn't get the difference between the absolute value and the percentage :
let's say i'm requesting 500mCPU per Pod for a starting number of 3 pods.
If i want to replace the autoscaling metrics of "50% of CPU Usage" by an absolute value : will it be "250 mCPU" ?
is it based on an average user per pod or is it the total use for all the pods ?
thank you in advance
If you use targetAverageValue ( or even targetAverageUtilization ), the metric value used by the scaling algorithm is based on the average across all matching pods.
From the Horizontal Pod Autoscaling docs:
When a targetAverageValue or targetAverageUtilization is specified, the currentMetricValue is computed by taking the average of the given metric across all Pods in the HorizontalPodAutoscaler's scale target.