55 lines
2.3 KiB
Markdown
55 lines
2.3 KiB
Markdown
---
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title: StatefulSet
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id: statefulset
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date: 2018-04-12
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full_link: /zh/docs/concepts/workloads/controllers/statefulset/
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short_description: >
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StatefulSet 用来管理某 Pod 集合的部署和扩缩，并为这些 Pod 提供持久存储和持久标识符。
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aka:
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tags:
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- fundamental
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- core-object
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- workload
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- storage
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---
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<!--
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---
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title: StatefulSet
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id: statefulset
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date: 2018-04-12
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full_link: /docs/concepts/workloads/controllers/statefulset/
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short_description: >
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Manages deployment and scaling of a set of Pods, with durable storage and persistent identifiers for each Pod.
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aka:
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tags:
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- fundamental
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- core-object
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- workload
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- storage
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---
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-->
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<!--
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Manages the deployment and scaling of a set of {{< glossary_tooltip text="Pods" term_id="pod" >}}, *and provides guarantees about the ordering and uniqueness* of these Pods.
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-->
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StatefulSet 用来管理某 {{< glossary_tooltip text="Pod" term_id="pod" >}} 集合的部署和扩缩，
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并为这些 Pod 提供持久存储和持久标识符。
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<!--more-->
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<!--
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Like a {{< glossary_tooltip term_id="deployment" >}}, a StatefulSet manages Pods that are based on an identical container spec. Unlike a Deployment, a StatefulSet maintains a sticky identity for each of their Pods. These pods are created from the same spec, but are not interchangeable: each has a persistent identifier that it maintains across any rescheduling.
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-->
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和 {{< glossary_tooltip text="Deployment" term_id="deployment" >}} 类似，
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StatefulSet 管理基于相同容器规约的一组 Pod。但和 Deployment 不同的是，
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StatefulSet 为它们的每个 Pod 维护了一个有粘性的 ID。这些 Pod 是基于相同的规约来创建的，
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但是不能相互替换：无论怎么调度，每个 Pod 都有一个永久不变的 ID。
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<!--
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If you want to use storage volumes to provide persistence for your workload, you can use a StatefulSet as part of the solution. Although individual Pods in a StatefulSet are susceptible to failure, the persistent Pod identifiers make it easier to match existing volumes to the new Pods that replace any that have failed.
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-->
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如果希望使用存储卷为工作负载提供持久存储，可以使用 StatefulSet 作为解决方案的一部分。
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尽管 StatefulSet 中的单个 Pod 仍可能出现故障，
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但持久的 Pod 标识符使得将现有卷与替换已失败 Pod 的新 Pod 相匹配变得更加容易。 |