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---
title: "Pod 中断预算"
type: concept
tags: [Kubernetes, EKS, High-Availability]
---
## Description
Pod 中断预算Pod Disruption BudgetPDB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。
## Use Case
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。
## Related Concepts
- [[EKS 可靠性]]
- [[Pod 反亲和性]]
## Related Entities
- [[EKS]]
- [[Kubernetes]]
## Connections
- [[Pod 中断预算]] ← 实现 [[EKS 可靠性]]