Kubernetes - Production Best Practices
What is the effect of upgrading worker nodes one at a time in a rolling upgrade strategy?
What is the effect of upgrading worker nodes one at a time in a rolling upgrade strategy?
medium📝 Command Output Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Understand rolling upgrade
Upgrading nodes one by one keeps cluster services running.Step 2: Evaluate options
Only Cluster remains available with minimal disruption correctly describes minimal disruption and availability.Final Answer:
Cluster remains available with minimal disruption -> Option DQuick Check:
Rolling upgrade effect = minimal disruption [OK]
Quick Trick: Upgrade nodes sequentially to avoid downtime [OK]
Common Mistakes:
- Assuming all pods restart at once
- Confusing control plane upgrade with worker upgrade
- Not draining nodes before upgrade
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