Michael
79 lines
3.9 KiB
Markdown
79 lines
3.9 KiB
Markdown
---
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title: 调度、抢占和驱逐
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weight: 90
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content_type: concept
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description: >
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在 Kubernetes 中，调度 (scheduling) 指的是确保 Pod 匹配到合适的节点，
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以便 kubelet 能够运行它们。抢占 (Preemption) 指的是终止低优先级的 Pod 以便高优先级的 Pod
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可以调度运行的过程。驱逐 (Eviction) 是在资源匮乏的节点上，主动让一个或多个 Pod 失效的过程。
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no_list: true
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---
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<!--
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title: "Scheduling, Preemption and Eviction"
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weight: 90
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content_type: concept
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description: >
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In Kubernetes, scheduling refers to making sure that Pods are matched to Nodes
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so that the kubelet can run them. Preemption is the process of terminating
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Pods with lower Priority so that Pods with higher Priority can schedule on
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Nodes. Eviction is the process of proactively terminating one or more Pods on
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resource-starved Nodes.
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no_list: true
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-->
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<!--
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In Kubernetes, scheduling refers to making sure that {{<glossary_tooltip text="Pods" term_id="pod">}}
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are matched to {{<glossary_tooltip text="Nodes" term_id="node">}} so that the
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{{<glossary_tooltip text="kubelet" term_id="kubelet">}} can run them. Preemption
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is the process of terminating Pods with lower {{<glossary_tooltip text="Priority" term_id="pod-priority">}}
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so that Pods with higher Priority can schedule on Nodes. Eviction is the process
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of terminating one or more Pods on Nodes.
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-->
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在 Kubernetes 中，调度 (scheduling) 指的是确保 {{<glossary_tooltip text="Pod" term_id="pod">}}
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匹配到合适的{{<glossary_tooltip text="节点" term_id="node">}}，
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以便 {{<glossary_tooltip text="kubelet" term_id="kubelet">}} 能够运行它们。
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抢占 (Preemption) 指的是终止低{{<glossary_tooltip text="优先级" term_id="pod-priority">}}的 Pod
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以便高优先级的 Pod 可以调度运行的过程。
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驱逐 (Eviction) 是在资源匮乏的节点上，主动让一个或多个 Pod 失效的过程。
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<!--
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## Scheduling
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* [Kubernetes Scheduler](/docs/concepts/scheduling-eviction/kube-scheduler/)
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* [Assigning Pods to Nodes](/docs/concepts/scheduling-eviction/assign-pod-node/)
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* [Pod Overhead](/docs/concepts/scheduling-eviction/pod-overhead/)
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* [Pod Topology Spread Constraints](/docs/concepts/scheduling-eviction/topology-spread-constraints/)
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* [Taints and Tolerations](/docs/concepts/scheduling-eviction/taint-and-toleration/)
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* [Scheduling Framework](/docs/concepts/scheduling-eviction/scheduling-framework)
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* [Scheduler Performance Tuning](/docs/concepts/scheduling-eviction/scheduler-perf-tuning/)
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* [Resource Bin Packing for Extended Resources](/docs/concepts/scheduling-eviction/resource-bin-packing/)
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-->
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## 调度
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* [Kubernetes 调度器](/zh-cn/docs/concepts/scheduling-eviction/kube-scheduler/)
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* [将 Pod 指派到节点](/zh-cn/docs/concepts/scheduling-eviction/assign-pod-node/)
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* [Pod 开销](/zh-cn/docs/concepts/scheduling-eviction/pod-overhead/)
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* [Pod 拓扑分布约束](/zh-cn/docs/concepts/scheduling-eviction/topology-spread-constraints/)
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* [污点和容忍度](/zh-cn/docs/concepts/scheduling-eviction/taint-and-toleration/)
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* [调度框架](/zh-cn/docs/concepts/scheduling-eviction/scheduling-framework)
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* [调度器性能调试](/zh-cn/docs/concepts/scheduling-eviction/scheduler-perf-tuning/)
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* [扩展资源的资源装箱](/zh-cn/docs/concepts/scheduling-eviction/resource-bin-packing/)
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<!--
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## Pod Disruption
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* [Pod Priority and Preemption](/docs/concepts/scheduling-eviction/pod-priority-preemption/)
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* [Node-pressure Eviction](/docs/concepts/scheduling-eviction/node-pressure-eviction/)
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* [API-initiated Eviction](/docs/concepts/scheduling-eviction/api-eviction/)
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-->
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## Pod 干扰
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{{<glossary_definition term_id="pod-disruption" length="all">}}
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* [Pod 优先级和抢占](/zh-cn/docs/concepts/scheduling-eviction/pod-priority-preemption/)
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* [节点压力驱逐](/zh-cn/docs/concepts/scheduling-eviction/node-pressure-eviction/)
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* [API 发起的驱逐](/zh-cn/docs/concepts/scheduling-eviction/api-eviction/)
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