---
title: 容忍度
id: toleration
date: 2019-01-11
full_link: /docs/concepts/configuration/taint-and-toleration/
short_description: >
  一个核心对象，由三个必需的属性组成：key、value 和 effect。容忍度允许将 Pod 调度到具有对应污点的节点或节点组上。
aka:
tags:
- core-object
- fundamental
---
 一个核心对象，由三个必需的属性组成：key、value 和 effect。
 容忍度允许将 Pod 调度到具有匹配 {{< glossary_tooltip text="污点" term_id="taint" >}} 的节点或节点组上。
 
<!--
---
title: Toleration
id: toleration
date: 2019-01-11
full_link: /docs/concepts/configuration/taint-and-toleration/
short_description: >
  A core object consisting of three required properties: key, value, and effect. Tolerations enable the scheduling of pods on nodes or node groups that have a matching taint.
  
aka:
tags:
- core-object
- fundamental
---
 A core object consisting of three required properties: key, value, and effect. Tolerations enable the scheduling of pods on nodes or node groups that have matching {{< glossary_tooltip text="taints" term_id="taint" >}}.
-->

<!--more-->

<!--
Tolerations and {{< glossary_tooltip text="taints" term_id="taint" >}} work together to ensure that pods are not scheduled onto inappropriate nodes. One or more tolerations are applied to a {{< glossary_tooltip text="pod" term_id="pod" >}}. A toleration indicates that the {{< glossary_tooltip text="pod" term_id="pod" >}} is allowed (but not required) to be scheduled on nodes or node groups with matching {{< glossary_tooltip text="taints" term_id="taint" >}}.
-->
 容忍度 和 {{< glossary_tooltip text="污点" term_id="taint" >}} 共同作用以确保不会将 Pod 调度在不适合的节点上。在同一 {{< glossary_tooltip text="pod" term_id="pod" >}} 上可以设置一个或者多个容忍度。容忍度表示在匹配节点或节点组上的 {{< glossary_tooltip text="污点" term_id="taint" >}} 调度 {{< glossary_tooltip text="pod" term_id="pod" >}} 是允许的（但不必要）。