# watch-cache Published articles for watch-cache. This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles. ## kube-apiserver / Kubernetes 控制面内核：storage、cacher、Admission 与 APF DevFeed: [kube-apiserver / Kubernetes 控制面内核：storage、cacher、Admission 与 APF]() Original publisher: [Read original article]() 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]() Topics: [Kubernetes](), [etcd](), [Caching](), [API](), [site-reliability-engineering](), [Authentication](), [Authorization](), [rbac]() Tags: [admission](), [apf](), [apiserver](), [authentication](), [authorization](), [cacher](), [control-plane](), [distributed](), [etcd](), [kubernetes](), [oidc](), [pagination](), [plan](), [rbac](), [resourceversion](), [storage](), [v1-30-3](), [watch](), [watch-cache](), [webhook]() ### AI overview This article introduces a 16-part series on the kube-apiserver production request path, covering storage.Interface and etcd3, resourceVersion, watch cache behavior, List and Watch operations, Admission and Webhooks, authentication, authorization, auditing, APF, and extension boundaries. It explains how to distinguish failures across these layers and when to investigate kube-apiserver instead of directly querying etcd. The discussion is anchored to Kubernetes v1.30.3 and etcd v3.5.33, with experiments explicitly noted as not yet run. ### Source excerpt 补齐 etcd 系列 K8s 耦合篇之上的 kube-apiserver 生产内核：storage.Interface、watch cache、resourceVersion、Admission/Webhook、APF，并以排障与相对 etcd 的分层收束。 ## 【kube-apiserver】选型收束与开放问题：排除树、Kine 与 events 分集群 DevFeed: [【kube-apiserver】选型收束与开放问题：排除树、Kine 与 events 分集群]() Original publisher: [Read original article]() 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]() Topics: [Kubernetes](), [Caching](), [etcd](), [SQL](), [MySQL](), [PostgreSQL](), [SQLite](), [Raft]() Tags: [apiserver](), [churn](), [distributed](), [errcompacted](), [etcd](), [events](), [exclusion-tree](), [kine](), [kubernetes](), [mysql](), [open-questions](), [postgresql](), [quota](), [raft](), [selection](), [sql](), [sqlite](), [storage](), [ttl](), [v1-30-3](), [watch-cache]() ### AI overview This concluding article presents a mechanism-based decision tree for diagnosing Kubernetes control-plane issues across kube-apiserver and etcd layers. It explains Kine's differing Watch semantics when using SQLite, PostgreSQL, or MySQL backends, discusses routing Kubernetes Events to a separate etcd cluster, and identifies open questions around watch-cache SLOs, compaction, linear reads, and Lease fencing. ### Source excerpt 用机制排除树收束何时查 apiserver 轴、何时穿透 etcd 轴、何时两轴联查；回收 etcd/13 写下的 apiserver 停损线；Kine SQL backend 的 Watch 语义差与 Jepsen 覆盖空白；events --etcd-servers-overrides 分集群运维；列出 watch cache SLO 联合模型、线性读期望与 Lease+fencing 全链路三个开放问题；以 ADR 语言关闭系列边界。 ## 【kube-apiserver】控制面全景：缺口、五轴坐标系与 16 篇路线 DevFeed: [【kube-apiserver】控制面全景：缺口、五轴坐标系与 16 篇路线]() Original publisher: [Read original article]() 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]() Topics: [Kubernetes](), [etcd]() Tags: [admission](), [apf](), [apiserver](), [auth](), [control-plane](), [distributed](), [etcd](), [kubernetes](), [network](), [overview](), [storage](), [v1-30-3](), [watch](), [watch-cache]() ### AI overview This article maps gaps in existing coverage of the Kubernetes control plane and proposes a 16-part reading route organized around Storage, Watch, Admission, Auth, and APF. It anchors the discussion to Kubernetes v1.30.3 and etcd v3.5.33, focusing on how requests travel through kube-apiserver and how to distinguish admission, caching, backend, and timeout failures. ### Source excerpt 相对 etcd/13、distributed/50、k8s-network 补齐 kube-apiserver 生产内核缺口；以 Storage/Watch/Admission/Auth/APF 五轴为坐标系定义 16 篇阅读路线；版本锚定 Kubernetes v1.30.3。 ## 【kube-apiserver】Watch cache / cacher：dispatch、bookmark 与穿透 etcd DevFeed: [【kube-apiserver】Watch cache / cacher：dispatch、bookmark 与穿透 etcd]() Original publisher: [Read original article]() 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]() Topics: [Caching](), [Kubernetes](), [API](), [Kubernetes v1.32]() Tags: [410-gone](), [apiserver](), [bookmark](), [cache](), [cacher](), [distributed](), [kubernetes](), [metrics](), [resourceversion](), [storage](), [v1](), [v1-30-3](), [watch-cache]() ### AI overview This article explains the Kubernetes v1.30.3 apiserver watch cache and cacher implementation. It covers the watchCache sliding window, the Ready gate during startup synchronization, in-memory event dispatch, bookmark progress notifications, and the conditions that cause cache misses to fall back to etcd. ### Source excerpt 钉 Kubernetes v1.30.3 cacher 对 storage.Interface 的包装：watchCache 滑动窗口与 Ready 门、bookmark 推送路径、cache miss 打穿 etcd 的触发条件，以及 List 风暴成因与 watch cache SLO 与 compaction 间隔之间的开放问题。 ## 【etcd】Kubernetes 控制面耦合：apiserver、resourceVersion 与 Node Lease DevFeed: [【etcd】Kubernetes 控制面耦合：apiserver、resourceVersion 与 Node Lease]() Original publisher: [Read original article]() Author: Liao Tonglang Published: 2026-08-26T00:00:00Z Content type: tutorial Language: zh Sources: [土法炼钢 - 系统与基础设施]() Topics: [etcd](), [Kubernetes](), [API](), [Cache]() Tags: [api](), [apiserver](), [cache](), [control-plane](), [distributed](), [etcd](), [kubernetes](), [lease](), [mvcc](), [node-lease](), [raft](), [resourceversion](), [v3-5-33](), [watch](), [watch-cache]() ### AI overview This article explains how Kubernetes control-plane components interact with etcd. It covers the kube-apiserver boundary, the mapping of resourceVersion to etcd mod revision, Node Lease storage, watch cache behavior, and how compaction, caching, and event sharding affect troubleshooting and etcd load. ### Source excerpt 钉 kube-apiserver 与 etcd 的分层边界；resourceVersion 如何映射 Revision MVCC；Node Lease 如何落在 Lease 轴；以及 apiserver 超时应如何分列到 Raft/Watch/Quota 五轴。