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nexus/wiki/concepts/Pod-反亲和性.md
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---
title: "Pod 反亲和性"
type: concept
tags: [Kubernetes, EKS, High-Availability]
---
## Description
Pod 反亲和性Pod Anti-Affinity是一种 Kubernetes 调度策略,用于确保 Pod 不被调度到同一节点或同一可用区,从而提高应用的可用性和可靠性。
## Use Case
在 EKS 中部署关键应用时,使用 Pod 反亲和性确保应用 Pod 分布在不同的节点和可用区,避免单点故障。
## Related Concepts
- [[拓扑分布约束]]Pod 反亲和性的更细粒度控制方式
- [[HPA]]
- [[VPA]]
## Related Entities
- [[EKS]]
- [[Kubernetes]]
## Connections
- [[Pod 反亲和性]] ← 实现 [[EKS 可靠性]]