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What will happen if the kube-apiserver process crashes in a Kubernetes cluster?

medium📝 Command Output Q5 of 15
Kubernetes - Fundamentals
What will happen if the kube-apiserver process crashes in a Kubernetes cluster?
ANo new API requests can be processed, but existing pods continue running
BAll pods in the cluster stop immediately
CThe scheduler automatically restarts the API server
Detcd deletes all cluster data
Step-by-Step Solution
Solution:

  1. Step 1: Understand kube-apiserver's role

    The API server handles all API requests; if it crashes, new requests fail but existing pods keep running.

  2. Step 2: Exclude other outcomes

    Pods do not stop immediately; scheduler does not restart API server; etcd does not delete data on API server crash.

  3. Final Answer:

    No new API requests can be processed, but existing pods continue running -> Option A

  4. Quick Check:

    API server crash = no new requests, pods run [OK]
Quick Trick: API server crash blocks new requests, pods stay alive [OK]
Common Mistakes:
  • Assuming pods stop immediately
  • Thinking scheduler restarts API server
  • Believing etcd deletes data on crash

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