# optimistic-concurrency

Published articles for optimistic-concurrency.

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## 【kube-apiserver】storage.Interface 与 etcd3：codec、prefix 与 CRUD 路径

DevFeed: [【kube-apiserver】storage.Interface 与 etcd3：codec、prefix 与 CRUD 路径](<https://devfeed.tech/articles/kube-apiserver-storage-interface-etcd3-codec-prefix-crud-33959.md>)

Original publisher: [Read original article](<https://quant67.com/post/apiserver/03-storage-etcd3/03-storage-etcd3.html>)

Author: Liao Tonglang

Published: 2026-08-28T00:00:00Z

Content type: tutorial

Language: zh

Sources: [土法炼钢 - 系统与基础设施](<https://devfeed.tech/sources/source-4.md>)

Topics: [Kubernetes](<https://devfeed.tech/topics/kubernetes.md>), [API](<https://devfeed.tech/topics/api.md>), [Encryption](<https://devfeed.tech/topics/encryption.md>), [Raft](<https://devfeed.tech/topics/raft.md>)

Tags: [api](<https://devfeed.tech/tags/api.md>), [apiserver](<https://devfeed.tech/tags/apiserver.md>), [codec](<https://devfeed.tech/tags/codec.md>), [crud](<https://devfeed.tech/tags/crud.md>), [distributed](<https://devfeed.tech/tags/distributed.md>), [encryption](<https://devfeed.tech/tags/encryption.md>), [encryption-at-rest](<https://devfeed.tech/tags/encryption-at-rest.md>), [etcd3](<https://devfeed.tech/tags/etcd3.md>), [guaranteed-update](<https://devfeed.tech/tags/guaranteed-update.md>), [kubernetes](<https://devfeed.tech/tags/kubernetes.md>), [optimistic-concurrency](<https://devfeed.tech/tags/optimistic-concurrency.md>), [raft](<https://devfeed.tech/tags/raft.md>), [rest](<https://devfeed.tech/tags/rest.md>), [storage](<https://devfeed.tech/tags/storage.md>), [v1-30-3](<https://devfeed.tech/tags/v1-30-3.md>)

### AI overview

This tutorial explains how kube-apiserver's storage.Interface integrates with the etcd3 backend in Kubernetes v1.30.3. It covers key prefixes, codec serialization, value transformation and encryption-at-rest boundaries, optimistic concurrency through GuaranteedUpdate and transactions, and the mapping from etcd3 watch streams to apiserver events.

### Source excerpt

拆解 kube-apiserver 的 storage.Interface 契约与 etcd3 实现：codec 序列化、pathPrefix/resourcePrefix、value.Transformer 加密边界、GuaranteedUpdate 乐观并发，以及 Watch 到 etcd3 的完整路径。版本锚定 Kubernetes v1.30.3 / etcd v3.5.33。