Kubernetes - Fundamentals
Given the following scenario: The Kubernetes scheduler fails to assign pods to nodes. Which control plane component is most likely responsible for detecting and fixing this issue automatically?
Given the following scenario: The Kubernetes scheduler fails to assign pods to nodes. Which control plane component is most likely responsible for detecting and fixing this issue automatically?
medium📝 Command Output Q13 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the roles of components
The controller manager runs controllers that watch cluster state and fix issues like unscheduled pods.Step 2: Identify responsible component for fixing scheduling issues
When scheduler fails, controller manager detects pods not assigned and may trigger rescheduling or alerts. API server only handles requests, etcd stores data, kubelet runs on nodes.Final Answer:
Controller manager -> Option DQuick Check:
Controller manager fixes cluster state issues [OK]
Quick Trick: Controller manager fixes cluster state problems automatically [OK]
Common Mistakes:
- Confusing API server with controller manager
- Thinking etcd fixes issues
- Assuming kubelet manages scheduling
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