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CKA study material · question 877 of 1000

A Service works most of the time but fails intermittently, and its backing Pods show a high RESTARTS count. How are the two connected?

  1. Restarting Pods keep dropping out of the endpoint list
  2. Each restart changes the Pod's labels
  3. Restarts reset the Service's session affinity table
  4. Restarts cause kube-proxy to reload its whole rule set
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Answer: A. Restarting Pods keep dropping out of the endpoint list

Every restart briefly removes that Pod as an endpoint, so a Service backed by frequently restarting Pods loses capacity intermittently and connections fail at random.

Source: Debug Services (Kubernetes) — Does the Service have any EndpointSlices?

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