V2EX etcd

Etcd

释义 Definition

etcd:一个开源的分布式键值存储(distributed key-value store),常用于保存集群的关键配置与状态数据,并提供一致性读写(强一致)能力;在云原生场景中经常作为 Kubernetes 的核心组件之一。(也常指该项目/服务本身。)

发音 Pronunciation (IPA)

/tsidi/

例句 Examples

Etcd stores configuration data for the cluster.
etcd 用来为集群存储配置数据。

In a Kubernetes control plane, etcd provides a strongly consistent source of truth, so operators can recover state reliably after failures.
在 Kubernetes 控制平面中,etcd 提供强一致的“真实来源”,因此在发生故障后运维人员也能可靠地恢复状态。

词源 Etymology

etcd”名称源于 Unix/Linux 系统中的 /etc 目录(传统上用于存放系统配置),加上 d 常被理解为 “distributed(分布式)” 的含义,表达“分布式的配置/状态存储”。它是 CoreOS 团队推出的项目,底层一致性算法常与 Raft 相关。

相关词 Related Words

文学与著作中的用例 Literary / Notable Works

  • Kubernetes: Up & Running(介绍 Kubernetes 架构与组件,包含对 etcd 的讨论)
  • Kubernetes in Action(讲解控制平面与数据存储,涉及 etcd 的角色与实践)
  • Designing Data-Intensive Applications(讨论分布式数据系统与一致性相关概念,常与 etcd 这类系统一起被引用与对比)
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