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wiki/concepts/Pod-反亲和性.md
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wiki/concepts/Pod-反亲和性.md
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title: "Pod 反亲和性"
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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 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。
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## Use Case
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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。
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## Related Concepts
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- [[拓扑分布约束]]:Pod 反亲和性的更细粒度控制方式
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- [[HPA]]
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- [[VPA]]
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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 反亲和性]] ← 实现 [[EKS 可靠性]]
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