Interview questions
Scaling & load balancingHardSDE-3

You have 30 pods of a gRPC service behind a Kubernetes Service. Dashboards show 3 pods at 95% CPU and the rest near 20%. Autoscaling adds pods but they stay idle. Why?

Asked at
GoogleUber

Think first

Answer out loud as you would in the room — clarify, give numbers, name the trade-off — then compare with the model answer.

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