What is the purpose of "Vertical Pod Autoscaler's" "Recreate" update mode, and what is its main drawback?
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Incorrect.
The correct answer is B) In "Recreate" mode, VPA evicts and recreates Pods to apply new resource recommendations, since resource requests/limits cannot generally be changed on a running Pod; the drawback is that this causes Pod restarts, potentially disrupting running workloads
Correct Answer
In "Recreate" mode, VPA evicts and recreates Pods to apply new resource recommendations, since resource requests/limits cannot generally be changed on a running Pod; the drawback is that this causes Pod restarts, potentially disrupting running workloads
Because (traditionally) a Pod's resource requests/limits are immutable once set, VPA in Recreate mode must evict the Pod and let its controller recreate it with updated resources — causing a disruption, which is why VPA is often used cautiously alongside PodDisruptionBudgets.