https://www.sre.wang/tags/%E7%BC%93%E5%AD%98%E5%91%BD%E4%B8%AD%E7%8E%87/Recent content in 缓存命中率 on SRE工程实践https://www.sre.wang/share-card-square.jpghttps://www.sre.wang/share-card-square.jpgHugo -- gohugo.iozh-cnThu, 24 Sep 2026 00:05:40 +0800https://www.sre.wang/posts/monitoring-cdn-edge-monitoring/Thu, 24 Sep 2026 00:05:40 +0800https://www.sre.wang/posts/monitoring-cdn-edge-monitoring/CDN 监控不是看个命中率就完事，本文从缓存命中率、回源带宽、边缘节点健康度三个维度，拆解一套可落地的 CDN 监控体系搭建方案，包含 Prometheus 采集、Grafana 仪表盘设计、告警规则配置和 5 个真实排障决策。