A school district runs a three-member etcd cluster and two members fail. What is the expected impact on cluster API availability?
Select an answer to reveal the explanation.
Short Explanation
Three mayors need a majority of two to vote. Lose two and the last mayor cannot pass motions alone—etcd quorum works the same way, and the API goes dark for safe consensus.
Full Explanation
etcd requires a majority quorum. In a three-member cluster, quorum is two; losing two members leaves only one, which cannot form quorum. Without quorum, consistent cluster state cannot be maintained and the Kubernetes API becomes unavailable for normal reads and writes. A single survivor does not retain quorum, and the failure is not limited to Ingress or metrics.