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nexus/wiki/concepts/拓扑分布约束.md
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---
title: "拓扑分布约束"
type: concept
tags: [Kubernetes, EKS, High-Availability]
---
## Description
拓扑分布约束Topology Spread Constraints是 Kubernetes 提供的 Pod 分布控制机制,比 Pod 反亲和性更细粒度,可以控制 Pod 在可用区、节点等拓扑域的分布。
## Use Case
在 EKS 中确保工作负载在多个可用区间均匀分布,实现高可用性。
## Related Concepts
- [[Pod 反亲和性]]:更简单的 Pod 分布策略
- [[EKS 可靠性]]
## Related Entities
- [[EKS]]
- [[Kubernetes]]
## Connections
- [[拓扑分布约束]] ← 实现 [[EKS 可靠性]]