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wiki/concepts/Pod-中断预算.md
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wiki/concepts/Pod-中断预算.md
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title: "Pod 中断预算"
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type: concept
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tags: [Kubernetes, EKS, High-Availability]
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---
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## Description
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Pod 中断预算(Pod Disruption Budget,PDB)是 Kubernetes 机制,确保在自愿中断(如节点维护、升级)期间仍维持最少的 Pod 副本数,保证服务的可用性。
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## Use Case
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在 EKS 中进行集群升级或节点维护时,PDB 确保应用始终保持最低服务水平。
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## Related Concepts
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- [[EKS 可靠性]]
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- [[Pod 反亲和性]]
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## Related Entities
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- [[EKS]]
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- [[Kubernetes]]
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## Connections
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- [[Pod 中断预算]] ← 实现 [[EKS 可靠性]]
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