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## 【kube-apiserver】Watch 路径（服务端）：长连接、410 Gone 与 timeout

DevFeed: [【kube-apiserver】Watch 路径（服务端）：长连接、410 Gone 与 timeout](<https://devfeed.tech/articles/kube-apiserver-watch-410-gone-timeout-33963.md>)

Original publisher: [Read original article](<https://quant67.com/post/apiserver/07-watch-server/07-watch-server.html>)

Author: Liao Tonglang

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

Content type: article

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>), [HTTP](<https://devfeed.tech/topics/http.md>), [kubectl](<https://devfeed.tech/topics/kubectl.md>)

Tags: [410-gone](<https://devfeed.tech/tags/410-gone.md>), [apiserver](<https://devfeed.tech/tags/apiserver.md>), [bookmark](<https://devfeed.tech/tags/bookmark.md>), [cacher](<https://devfeed.tech/tags/cacher.md>), [distributed](<https://devfeed.tech/tags/distributed.md>), [etcd](<https://devfeed.tech/tags/etcd.md>), [etcd3](<https://devfeed.tech/tags/etcd3.md>), [informer](<https://devfeed.tech/tags/informer.md>), [kubernetes](<https://devfeed.tech/tags/kubernetes.md>), [resourceversion](<https://devfeed.tech/tags/resourceversion.md>), [rest](<https://devfeed.tech/tags/rest.md>), [timeout](<https://devfeed.tech/tags/timeout.md>), [v1-30-3](<https://devfeed.tech/tags/v1-30-3.md>), [watch](<https://devfeed.tech/tags/watch.md>)

### AI overview

This article explains the Kubernetes v1.30.3 apiserver Watch path, from the REST handler through cacher and etcd3 watchers. It distinguishes 410 Gone caused by cacher ring-buffer eviction from errors propagated from etcd compaction, and covers resourceVersion semantics, timeouts, bookmarks, connection lifecycle, and the boundary with client-go Informer.

### Source excerpt

钉 Kubernetes v1.30.3 服务端 Watch 路径：从 REST handler 到 cacher/etcd3 watcher 的建立过程、resourceVersion=0 与具体 RV 的语义差异、410 Gone 与 etcd ErrCompacted 的映射、bookmark 推送与连接生命周期，以及与 client-go Informer 的边界。