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CKA study material · question 403 of 1000

Why is metrics-server unsuitable as a monitoring system of record?

  1. It reports memory but not CPU
  2. It requires a cloud provider
  3. It is a short-term in-memory store with no history
  4. It samples only control-plane nodes
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Answer: C. It is a short-term in-memory store with no history

metrics-server answers current usage questions from memory and keeps no history.

Source: Tools for Monitoring Resources (Kubernetes) — Resource metrics pipeline

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