Answer
HPA increases Pods requiring more nodes; autoscaler reacts slower, causing scaling thrashing.
Quick Answer
HPA scales Pods based on current load; Cluster Autoscaler adds nodes when Pods are Pending (no room to schedule). Conflict: HPA scales up Pods → Cluster Autoscaler adds a node → node comes up → HPA scales down → Cluster Autoscaler tries to remove the underutilized node → HPA sees load spike again. Tune cooldown windows and min/max bounds to dampen oscillation.
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ