{"id":209911,"date":"2025-10-24T01:07:26","date_gmt":"2025-10-23T17:07:26","guid":{"rendered":"https:\/\/www.server.hk\/blog\/209911\/"},"modified":"2025-10-24T01:07:27","modified_gmt":"2025-10-23T17:07:27","slug":"cdn-189","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/209911\/","title":{"rendered":"CDN\u8fd0\u7ef4\u76d1\u63a7\u5de5\u5177\u63a8\u8350\uff1a\u7cbe\u9009\u65b9\u6848\u3001\u9009\u578b\u8981\u70b9\u4e0e\u843d\u5730\u5b9e\u8df5"},"content":{"rendered":"<p>\u5728\u5168\u7403\u5316\u548c\u79fb\u52a8\u5316\u9a71\u52a8\u7684\u4eca\u5929\uff0cCDN\uff08\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\uff09\u5df2\u7ecf\u6210\u4e3a\u63d0\u5347\u7f51\u7ad9\u4e0e\u5e94\u7528\u6027\u80fd\u3001\u4fdd\u62a4\u6765\u6e90\u670d\u52a1\u5668\u5e76\u964d\u4f4e\u5e26\u5bbd\u6210\u672c\u7684\u5fc5\u5907\u57fa\u7840\u8bbe\u65bd\u3002\u5bf9\u4e8e\u7ad9\u957f\u3001\u4f01\u4e1a\u548c\u5f00\u53d1\u8005\u800c\u8a00\uff0c<strong>\u6709\u6548\u7684\u8fd0\u7ef4\u76d1\u63a7\u4f53\u7cfb<\/strong>\u4e0d\u4ec5\u8981\u8986\u76d6\u4f20\u7edf\u7684\u53ef\u7528\u6027\u68c0\u6d4b\uff0c\u8fd8\u8981\u6df1\u5165\u5230\u7f13\u5b58\u7b56\u7565\u3001\u7f51\u7edc\u8d28\u91cf\u3001TLS \u63e1\u624b\u3001\u534f\u8bae\u652f\u6301\uff08HTTP\/2\u3001QUIC\/HTTP\/3\uff09\u7b49\u7ec6\u7c92\u5ea6\u6307\u6807\u3002\u672c\u6587\u5c06\u4ece\u539f\u7406\u3001\u5178\u578b\u5e94\u7528\u573a\u666f\u3001\u5173\u952e\u6307\u6807\u4e0e\u5de5\u5177\u9009\u578b\u8981\u70b9\u51fa\u53d1\uff0c\u7ed3\u5408\u843d\u5730\u5b9e\u8df5\u5efa\u8bae\uff0c\u5e2e\u52a9\u4f60\u4e3a\u9999\u6e2f\u670d\u52a1\u5668\u3001\u7f8e\u56fd\u670d\u52a1\u5668\u6216\u5176\u4ed6\u6d77\u5916\u670d\u52a1\u5668\uff08\u4f8b\u5982\u65e5\u672c\u670d\u52a1\u5668\u3001\u97e9\u56fd\u670d\u52a1\u5668\u3001\u65b0\u52a0\u5761\u670d\u52a1\u5668\uff09\u9009\u62e9\u5e76\u90e8\u7f72\u5408\u9002\u7684 CDN \u8fd0\u7ef4\u76d1\u63a7\u65b9\u6848\u3002<\/p>\n<h2>CDN \u8fd0\u7ef4\u76d1\u63a7\u7684\u57fa\u672c\u539f\u7406\u4e0e\u89c2\u6d4b\u9762<\/h2>\n<p>CDN \u7684\u672c\u8d28\u662f\u901a\u8fc7\u5206\u5e03\u5f0f\u8fb9\u7f18\u8282\u70b9\u5c06\u5185\u5bb9\u7f13\u5b58\u5230\u79bb\u7528\u6237\u66f4\u8fd1\u7684\u4f4d\u7f6e\uff0c\u51cf\u5c11\u8de8\u56fd\u56de\u6e90\u5ef6\u8fdf\u548c\u5e26\u5bbd\u5360\u7528\u3002\u56e0\u6b64\u76d1\u63a7\u9700\u8981\u8986\u76d6\u4e09\u5927\u5c42\u9762\uff1a<\/p>\n<ul>\n<li><strong>\u7f51\u7edc\u4e0e\u4f20\u8f93\u5c42<\/strong>\uff1a\u5305\u62ec RTT\uff08\u5f80\u8fd4\u65f6\u5ef6\uff09\u3001\u4e22\u5305\u7387\u3001TCP \u5efa\u8fde\u65f6\u957f\u3001TLS \u63e1\u624b\u65f6\u957f\u3001QUIC \u8fde\u63a5\u6210\u529f\u7387\u7b49\u3002<\/li>\n<li><strong>\u5e94\u7528\u4e0e\u534f\u8bae\u5c42<\/strong>\uff1a\u89c2\u5bdf HTTP \u8bf7\u6c42\u7684 TTFB\uff08Time To First Byte\uff09\u3001\u9996\u5305\u65f6\u95f4\u3001\u8bf7\u6c42\u5931\u8d25\u7387\uff084xx\/5xx\uff09\u3001HTTP\/2 \u591a\u8def\u590d\u7528\u548c HTTP\/3 \u6307\u6807\u3002<\/li>\n<li><strong>\u7f13\u5b58\u4e0e\u4e1a\u52a1\u5c42<\/strong>\uff1a\u7f13\u5b58\u547d\u4e2d\u7387\u3001\u56de\u6e90\u6d41\u91cf\u3001\u56de\u6e90\u8bf7\u6c42\u6570\u3001\u7f13\u5b58\u5931\u6548\u539f\u56e0\uff08\u4f8b\u5982\u8def\u5f84\u89c4\u5219\u3001Cache-Control\u3001Set-Cookie\uff09\u3001\u4e0d\u540c\u6587\u4ef6\u7c7b\u578b\u7684\u547d\u4e2d\u7387\u3002<\/li>\n<\/ul>\n<p>\u8981\u5efa\u7acb\u5168\u9762\u7684\u89c2\u6d4b\u89c6\u56fe\uff0c\u901a\u5e38\u9700\u8981\u5408\u5e76\u4e09\u7c7b\u6570\u636e\u6e90\uff1a<\/p>\n<ul>\n<li>\u8fb9\u7f18\u8282\u70b9\u7684\u6307\u6807\uff08\u4ece CDN \u63d0\u4f9b\u5546\u6216\u8fb9\u7f18\u4ee3\u7406\u5bfc\u51fa\uff0c\u5982 nginx\/varnish stats\u3001provider API\uff09\u3002<\/li>\n<li>\u5408\u6210\u68c0\u6d4b\uff08Synthetic Monitoring\uff09\uff1a\u5168\u7403\u63a2\u9488\u6216\u81ea\u5efa\u63a2\u9488\u5b9a\u671f\u53d1\u8d77\u8bf7\u6c42\uff0c\u6d4b\u91cf\u771f\u5b9e\u7528\u6237\u8def\u5f84\u7684\u4f53\u9a8c\uff0c\u8986\u76d6\u9999\u6e2fVPS\u3001\u7f8e\u56fdVPS \u7b49\u4e0d\u540c\u5730\u7406\u70b9\u4f4d\u3002<\/li>\n<li>\u65e5\u5fd7\u4e0e\u8ffd\u8e2a\uff08Logs &amp; Tracing\uff09\uff1a\u8fb9\u7f18\u8bbf\u95ee\u65e5\u5fd7\u3001\u56de\u6e90\u65e5\u5fd7\u3001\u5206\u5e03\u5f0f\u8ffd\u8e2a\uff08OpenTelemetry\u3001Jaeger\uff09\u7528\u4e8e\u5b9a\u4f4d\u8bf7\u6c42\u94fe\u8def\u4e2d\u7684\u74f6\u9888\u3002<\/li>\n<\/ul>\n<h3>\u5173\u952e\u89c2\u6d4b\u6307\u6807\u8be6\u89e3<\/h3>\n<ul>\n<li><strong>Cache Hit Ratio<\/strong>\uff1a\u8861\u91cf CDN \u7f13\u5b58\u5229\u7528\u7387\u3002\u5e94\u7ec6\u5206\u4e3a\u9759\u6001\u8d44\u6e90\uff08JS\/CSS\/\u56fe\u7247\uff09\u4e0e\u52a8\u6001\u5185\u5bb9\u7684\u547d\u4e2d\u7387\u3002<\/li>\n<li><strong>TTFB \/ First Byte<\/strong>\uff1a\u76f4\u63a5\u53cd\u6620\u8fb9\u7f18\u54cd\u5e94\u901f\u5ea6\uff0c\u5f02\u5e38\u65f6\u9700\u8981\u5b9a\u4f4d\u662f\u8fb9\u7f18\u5ef6\u8fdf\u8fd8\u662f\u56de\u6e90\u5ef6\u8fdf\u3002<\/li>\n<li><strong>\u56de\u6e90\u901f\u7387\u4e0e\u56de\u6e90\u65f6\u5ef6<\/strong>\uff1a\u56de\u6e90\u5927\u91cf\u7a81\u589e\u5f80\u5f80\u662f\u7f13\u5b58\u7b56\u7565\u9519\u8bef\u6216\u5931\u6548\u5bfc\u81f4\u3002<\/li>\n<li><strong>\u9519\u8bef\u7387\uff084xx\/5xx\uff09\u4e0e\u5f02\u5e38\u5206\u5e03<\/strong>\uff1a\u6309\u56fd\u5bb6\u3001\u8282\u70b9\u3001URL \u8def\u5f84\u7ec6\u5206\uff0c\u7ed3\u5408\u65e5\u5fd7\u5206\u6790\u5b9a\u4f4d\u95ee\u9898\u3002<\/li>\n<li><strong>\u8bc1\u4e66\u4e0e TLS \u6307\u6807<\/strong>\uff1a\u8bc1\u4e66\u5230\u671f\u3001\u63e1\u624b\u5931\u8d25\u6bd4\u4f8b\u3001TLS \u7248\u672c\u5206\u5e03\uff08\u652f\u6301 TLS1.3 \u7684\u6bd4\u7387\uff09\u7b49\u3002<\/li>\n<li><strong>\u5e26\u5bbd\u4e0e\u8fde\u63a5\u6570\u4e0a\u9650<\/strong>\uff1a\u5e94\u76d1\u63a7\u8fb9\u7f18\u5e26\u5bbd\u9971\u548c\u4e0e\u5e76\u53d1\u8fde\u63a5\u6570\uff0c\u907f\u514d\u7a81\u53d1\u6d41\u91cf\u5bfc\u81f4\u8282\u70b9\u7194\u65ad\u3002<\/li>\n<\/ul>\n<h2>\u5e38\u7528\u7684 CDN \u8fd0\u7ef4\u76d1\u63a7\u5de5\u5177\u4e0e\u65b9\u6848\u5bf9\u6bd4<\/h2>\n<p>\u5e02\u573a\u4e0a\u6709\u591a\u7c7b\u5de5\u5177\u53ef\u6ee1\u8db3\u4e0d\u540c\u89c4\u6a21\u4e0e\u9884\u7b97\u7684\u9700\u6c42\uff0c\u4ece\u5f00\u6e90\u5230\u5546\u7528\uff0c\u4ece\u7edf\u4e00\u89c2\u6d4b\u5e73\u53f0\u5230\u4e13\u95e8\u7684\u65e5\u5fd7\u5206\u6790\u548c\u5408\u6210\u6d4b\u8bd5\u5de5\u5177\uff1a<\/p>\n<h3>\u5f00\u6e90\u65b9\u6848\uff08Prometheus + Grafana + Loki \/ Elastic\uff09<\/h3>\n<ul>\n<li>Prometheus\uff1a\u9002\u5408\u65f6\u5e8f\u6307\u6807\u91c7\u96c6\u4e0e\u62a5\u8b66\uff0c\u652f\u6301 histogram \u7528\u4e8e\u5ef6\u8fdf\u5206\u5e03\uff1b\u901a\u8fc7 exporters\uff08\u4f8b\u5982 nginx-vts-exporter\u3001varnish exporter\uff09\u6293\u53d6\u8fb9\u7f18\u6216\u81ea\u5efa\u4ee3\u7406\u6307\u6807\u3002<\/li>\n<li>Grafana\uff1a\u5f3a\u5927\u7684\u53ef\u89c6\u5316\u4e0e\u544a\u8b66\u7f16\u6392\uff0c\u9002\u5408\u6784\u5efa\u4e1a\u52a1\u7ef4\u5ea6\u7684\u4eea\u8868\u76d8\u3002<\/li>\n<li>Loki \/ Elasticsearch\uff1a\u7528\u4e8e\u65e5\u5fd7\u805a\u5408\u4e0e\u641c\u7d22\uff0c\u7ed3\u5408 Filebeat\/Fluentd \u91c7\u96c6\u8fb9\u7f18\u8bbf\u95ee\u65e5\u5fd7\uff08\u652f\u6301\u6309\u5730\u7406\u4f4d\u7f6e\u3001\u8282\u70b9\u3001URL \u7b5b\u67e5\uff09\u3002<\/li>\n<li>\u4f18\u70b9\uff1a\u4f4e\u6210\u672c\u3001\u9ad8\u5ea6\u53ef\u5b9a\u5236\u3001\u6570\u636e\u81ea\u6709\uff1b\u7f3a\u70b9\uff1a\u8fd0\u7ef4\u6210\u672c\u9ad8\u3001\u9700\u8981\u81ea\u884c\u4fdd\u8bc1\u91c7\u96c6\u7684\u5168\u7403\u63a2\u9488\u8986\u76d6\u3002<\/li>\n<\/ul>\n<h3>\u5546\u7528 SaaS\uff08Datadog \/ New Relic \/ Dynatrace \u7b49\uff09<\/h3>\n<ul>\n<li>\u7279\u70b9\uff1a\u5373\u63d2\u5373\u7528\u7684\u4eea\u8868\u677f\u3001\u5206\u5e03\u5f0f\u8ffd\u8e2a APM\u3001\u5408\u6210\u68c0\u6d4b\u3001\u6574\u5408 CDN \u63d0\u4f9b\u5546\u7684 API\u3002<\/li>\n<li>\u9002\u7528\u573a\u666f\uff1a\u4f01\u4e1a\u7ea7\u5e94\u7528\u3001\u9700\u8981\u5feb\u901f\u90e8\u7f72\u5e76\u5177\u5907 SLA \u62a5\u544a\u4e0e\u81ea\u52a8\u6839\u56e0\u5206\u6790\u7684\u56e2\u961f\u3002<\/li>\n<li>\u6210\u672c\u4e0e\u9690\u79c1\uff1a\u6309\u6307\u6807\/\u4e3b\u673a\/\u8bf7\u6c42\u8ba1\u8d39\uff0c\u957f\u671f\u8d39\u7528\u9700\u8bc4\u4f30\uff1b\u65e5\u5fd7\u4e0e\u8ffd\u8e2a\u6570\u636e\u53ef\u80fd\u5b58\u653e\u5728\u5382\u5546\u7aef\u3002<\/li>\n<\/ul>\n<h3>\u4e13\u7528 CDN \u89c2\u6d4b\u4e0e\u5408\u6210\u6d4b\u8bd5\u5de5\u5177\uff08Catchpoint\u3001Uptrends\u3001ThousandEyes\uff09<\/h3>\n<ul>\n<li>\u4f18\u52bf\u5728\u4e8e\u62e5\u6709\u5168\u7403\u63a2\u9488\u7f51\u7edc\uff08\u5305\u62ec\u9999\u6e2f\u3001\u4e1c\u4eac\u3001\u9996\u5c14\u3001\u65b0\u52a0\u5761\u3001\u6d1b\u6749\u77f6\u7b49\u8282\u70b9\uff09\uff0c\u80fd\u76f4\u63a5\u6d4b\u91cf\u4ece\u771f\u5b9e\u7f51\u7edc\u5230 CDN \u8fb9\u7f18\u7684\u4f53\u9a8c\u3002<\/li>\n<li>\u80fd\u591f\u68c0\u6d4b DNS \u89e3\u6790\u3001BGP \u8def\u7531\u3001ISP \u7ea7\u522b\u7684\u8fde\u901a\u6027\u95ee\u9898\uff0c\u9002\u5408\u5b9a\u4f4d\u8de8\u56fd\u8bbf\u95ee\u95ee\u9898\uff0c\u4f8b\u5982\u9999\u6e2f\u670d\u52a1\u5668\u7528\u6237\u8bbf\u95ee\u7f8e\u56fd\u670d\u52a1\u5668\u6258\u7ba1\u5185\u5bb9\u65f6\u7684\u8def\u5f84\u95ee\u9898\u3002<\/li>\n<li>\u4ef7\u683c\u504f\u9ad8\uff0c\u4f46\u5bf9\u9700\u8981\u4fdd\u969c\u5168\u7403\u7528\u6237\u4f53\u9a8c\u7684\u4f01\u4e1a\u975e\u5e38\u6709\u7528\u3002<\/li>\n<\/ul>\n<h3>\u65e5\u5fd7\u5206\u6790\u4e0e\u8ffd\u8e2a\uff08ELK + APM \/ OpenTelemetry\uff09<\/h3>\n<ul>\n<li>\u91c7\u7528 OpenTelemetry \u5c06\u8ffd\u8e2a\u3001\u5ea6\u91cf\u548c\u65e5\u5fd7\u7edf\u4e00\u6536\u96c6\uff0c\u80fd\u591f\u5728\u8bf7\u6c42\u94fe\u8def\u4e2d\u8ffd\u8e2a\u4ece\u8fb9\u7f18\u5230\u56de\u6e90\u7684\u6bcf\u4e00\u6b65\u3002<\/li>\n<li>\u7ed3\u5408 Kibana \/ Grafana \u8fdb\u884c\u94bb\u53d6\u5f0f\u5206\u6790\uff0c\u5feb\u901f\u5b9a\u4f4d\u6162\u8bf7\u6c42\u53d1\u751f\u7684\u5177\u4f53\u4ee3\u7801\u3001\u56de\u6e90\u63a5\u53e3\u6216\u7b2c\u4e09\u65b9\u4f9d\u8d56\u3002<\/li>\n<\/ul>\n<h2>\u9009\u578b\u8981\u70b9\uff1a\u5982\u4f55\u4e3a\u4e0d\u540c\u573a\u666f\u6311\u9009\u5408\u9002\u5de5\u5177<\/h2>\n<p>\u9009\u578b\u5e94\u57fa\u4e8e\u4e1a\u52a1\u89c4\u6a21\u3001\u5730\u7406\u5206\u5e03\u3001\u9884\u7b97\u4e0e\u5408\u89c4\u8981\u6c42\u3002\u4e0b\u9762\u5217\u51fa\u4e00\u4e9b\u5b9e\u7528\u8981\u70b9\uff1a<\/p>\n<ul>\n<li><strong>\u5168\u7403\u5206\u5e03 vs \u533a\u57df\u5316\u670d\u52a1<\/strong>\uff1a\u82e5\u7528\u6237\u4e3b\u8981\u96c6\u4e2d\u5728\u9999\u6e2f\u3001\u4e1c\u5357\u4e9a\u6216\u7f8e\u6d32\uff0c\u4f18\u5148\u9009\u62e9\u5177\u6709\u76f8\u5e94\u63a2\u9488\u8986\u76d6\u7684\u5408\u6210\u76d1\u6d4b\u670d\u52a1\u3002\u5c0f\u578b\u7ad9\u957f\u4f7f\u7528\u9999\u6e2fVPS \u4f5c\u4e3a\u63a2\u9488\u8282\u70b9\u4e5f\u80fd\u5b9e\u73b0\u6210\u672c\u53ef\u63a7\u7684\u5730\u57df\u6027\u68c0\u6d4b\u3002<\/li>\n<li><strong>\u6570\u636e\u81ea\u6709\u6743\u4e0e\u5408\u89c4<\/strong>\uff1a\u82e5\u516c\u53f8\u6709\u6570\u636e\u9a7b\u7559\u6216\u5408\u89c4\u8981\u6c42\uff0c\u4f18\u5148\u8003\u8651\u81ea\u5efa Prometheus + ELK \u7684\u65b9\u6848\uff0c\u6216\u9009\u62e9\u652f\u6301\u79c1\u6709\u90e8\u7f72\u7684\u5546\u7528\u4ea7\u54c1\u3002<\/li>\n<li><strong>\u53ef\u89c6\u5316\u4e0e\u544a\u8b66\u80fd\u529b<\/strong>\uff1a\u4e1a\u52a1\u9700\u8981 SRE \u65e0\u9700\u82b1\u5927\u91cf\u65f6\u95f4\u7ef4\u62a4\u76d1\u63a7\u5e73\u53f0\u65f6\uff0cSaaS \u80fd\u8282\u7701\u8fd0\u7ef4\u4eba\u529b\uff1b\u4f46\u957f\u671f\u6210\u672c\u9700\u5bf9\u6bd4\u3002<\/li>\n<li><strong>\u6574\u5408 CDN API \u4e0e\u81ea\u52a8\u5316<\/strong>\uff1a\u9009\u578b\u65f6\u786e\u8ba4\u5de5\u5177\u80fd\u5426\u901a\u8fc7 API \u81ea\u52a8\u62c9\u53d6 CDN \u8fb9\u7f18\u6307\u6807\u3001\u7f13\u5b58\u7b56\u7565\u53d8\u66f4\u8bb0\u5f55\u548c\u8bc1\u4e66\u4fe1\u606f\uff0c\u4ee5\u4fbf\u5b9e\u73b0\u81ea\u52a8\u5316\u8fd0\u7ef4\uff08\u4f8b\u5982\u5f53\u67d0\u4e2a\u8282\u70b9\u7f13\u5b58\u547d\u4e2d\u7387\u7a81\u964d\u65f6\u81ea\u52a8\u89e6\u53d1\u6e05\u7406\u6216\u56de\u6eda\u914d\u7f6e\uff09\u3002<\/li>\n<li><strong>\u534f\u8bae\u4e0e\u65b0\u7279\u6027\u652f\u6301<\/strong>\uff1a\u82e5\u4f60\u5df2\u5728\u9999\u6e2f\u670d\u52a1\u5668\u6216\u7f8e\u56fd\u670d\u52a1\u5668\u4e0a\u542f\u7528 HTTP\/3\uff0c\u76d1\u63a7\u5de5\u5177\u9700\u80fd\u91c7\u96c6 QUIC \u6210\u529f\u7387\u4e0e\u4e2d\u65ad\u7387\u7b49\u65b0\u534f\u8bae\u6307\u6807\u3002<\/li>\n<\/ul>\n<h2>\u843d\u5730\u5b9e\u8df5\uff1a\u4ece\u90e8\u7f72\u5230\u6301\u7eed\u4f18\u5316\u7684\u6b65\u9aa4<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u5b9e\u7528\u7684\u843d\u5730\u5b9e\u65bd\u6d41\u7a0b\uff0c\u9002\u7528\u4e8e\u9700\u8981\u5728\u9999\u6e2f\u3001\u7f8e\u56fd\u7b49\u591a\u5730\u7ef4\u62a4 CDN \u7684\u56e2\u961f\uff1a<\/p>\n<h3>1. \u660e\u786e\u76d1\u63a7\u76ee\u6807\u4e0e KPI<\/h3>\n<ul>\n<li>\u5b9a\u4e49 SLO\uff08\u4f8b\u5982 99.9% \u7684\u8bf7\u6c42 TTFB  85%\uff09\uff0c\u5e76\u5c06 SLO \u6620\u5c04\u5230\u5177\u4f53\u6307\u6807\u4e0e\u544a\u8b66\u9608\u503c\u3002<\/li>\n<\/ul>\n<h3>2. \u91c7\u96c6\u4e0e\u6570\u636e\u6d41\u8bbe\u8ba1<\/h3>\n<ul>\n<li>\u8fb9\u7f18\u8282\u70b9\uff1a\u542f\u7528\u8bbf\u95ee\u65e5\u5fd7\u3001\u5bfc\u51fa\u8fb9\u7f18\u6307\u6807\uff08\u4f7f\u7528 provider API \u6216\u8fb9\u7f18\u4ee3\u7406 exporter\uff09\u3002<\/li>\n<li>\u5408\u6210\u63a2\u9488\uff1a\u5728\u9999\u6e2fVPS\u3001\u7f8e\u56fdVPS\u3001\u65e5\u672c\/\u97e9\u56fd\/\u65b0\u52a0\u5761 \u7b49\u5173\u952e\u533a\u57df\uff0c\u90e8\u7f72\u8f7b\u91cf\u5316\u63a2\u9488\uff08\u4f8b\u5982\u4f7f\u7528 curl \u6216\u81ea\u5b9a\u4e49\u811a\u672c + Grafana Synthetic\uff09\uff0c\u6bcf 1~5 \u5206\u949f\u68c0\u6d4b\u5173\u952e URL\u3002<\/li>\n<li>\u8ffd\u8e2a\u4e0e\u65e5\u5fd7\uff1a\u5c06\u8ffd\u8e2a\u4e0a\u4e0b\u6587\u6ce8\u5165 CDN \u56de\u6e90\u8bf7\u6c42\uff0c\u5e76\u5728\u56de\u6e90\u5e94\u7528\u4e0a\u91c7\u96c6 OpenTelemetry traces\u3002<\/li>\n<\/ul>\n<h3>3. \u53ef\u89c6\u5316\u4e0e\u544a\u8b66\u7b56\u7565<\/h3>\n<ul>\n<li>\u6784\u5efa\u5168\u5c40\u4eea\u8868\u76d8\uff1a\u6309\u5730\u57df\uff08\u9999\u6e2f\u3001\u7f8e\u56fd\u3001\u4e1c\u4e9a\u7b49\uff09\u3001\u6309\u8d44\u6e90\u7c7b\u578b\uff08\u9759\u6001\/\u52a8\u6001\uff09\u3001\u6309\u72b6\u6001\u7801\u7ef4\u5ea6\u5c55\u793a\u3002<\/li>\n<li>\u591a\u7ea7\u544a\u8b66\uff1a\u4e34\u754c\uff08\u9875\u9762\u53ef\u8bbf\u95ee\u4f46\u4f53\u9a8c\u4e0b\u964d\uff09\u4e0e\u4e25\u91cd\uff08\u65e0\u6cd5\u8bbf\u95ee\u6216\u5927\u91cf 5xx\uff09\u5206\u5c42\u544a\u8b66\uff0c\u5e76\u628a\u544a\u8b66\u4e0e\u81ea\u52a8\u5316\u54cd\u5e94\uff08\u4f8b\u5982\u89e6\u53d1\u56de\u6e90\u6269\u5bb9\u3001\u8c03\u6574\u7f13\u5b58 TTL\uff09\u76f8\u7ed3\u5408\u3002<\/li>\n<\/ul>\n<h3>4. \u6839\u56e0\u5b9a\u4f4d\u4e0e\u81ea\u52a8\u5316\u54cd\u5e94<\/h3>\n<ul>\n<li>\u7ed3\u5408\u8ffd\u8e2a\u4e0e\u65e5\u5fd7\u5feb\u901f\u5b9a\u4f4d\uff1a\u4f8b\u5982\u67d0\u4e00\u65f6\u95f4\u6bb5\u5185 TTFB \u4e0a\u5347\uff0c\u540c\u65f6\u56de\u6e90\u5ef6\u8fdf\u5347\u9ad8\u4e14\u56de\u6e90 5xx \u589e\u591a\uff0c\u8bf4\u660e\u95ee\u9898\u5728\u56de\u6e90\u670d\u52a1\uff1b\u82e5\u56de\u6e90\u5ef6\u8fdf\u6b63\u5e38\u800c\u8fb9\u7f18 TTFB \u9ad8\uff0c\u53ef\u80fd\u662f\u8fb9\u7f18\u8282\u70b9\u7f51\u7edc\u6216\u914d\u7f6e\u95ee\u9898\u3002<\/li>\n<li>\u5b9e\u73b0\u81ea\u52a8\u5316\u811a\u672c\uff1a\u901a\u8fc7 CDN API \u81ea\u52a8\u5207\u6362\u56de\u539f\u914d\u7f6e\u3001\u4e0b\u53d1\u4e34\u65f6\u7f13\u5b58\u7b56\u7565\u3001\u6216\u89e6\u53d1 WAF \u9650\u6d41\u6765\u7f13\u89e3\u6d41\u91cf\u51b2\u51fb\u3002<\/li>\n<\/ul>\n<h3>5. \u5b9a\u671f\u6f14\u7ec3\u4e0e\u4f18\u5316<\/h3>\n<ul>\n<li>\u8fdb\u884c\u707e\u5907\u6f14\u7ec3\uff08\u4f8b\u5982\u6a21\u62df\u67d0\u533a\u57df\u56de\u6e90\u5931\u6548\uff09\uff0c\u9a8c\u8bc1\u76d1\u63a7\u544a\u8b66\u6d41\u7a0b\u4e0e\u56de\u9000\u7b56\u7565\u3002<\/li>\n<li>\u57fa\u4e8e\u89c2\u6d4b\u6570\u636e\u4f18\u5316\u7f13\u5b58\u89c4\u5219\u3001\u538b\u7f29\u7b56\u7565\u548c\u8fb9\u7f18\u8def\u7531\uff0c\u4ee5\u51cf\u5c11\u56de\u6e90\u538b\u529b\u5e76\u63d0\u5347\u5168\u7403\u7528\u6237\uff08\u5305\u62ec\u4f7f\u7528\u9999\u6e2f\u670d\u52a1\u5668\u548c\u7f8e\u56fd\u670d\u52a1\u5668\u7684\u7528\u6237\uff09\u7684\u4f53\u9a8c\u3002<\/li>\n<\/ul>\n<h2>\u4f18\u52bf\u5bf9\u6bd4\u4e0e\u6210\u672c\u8003\u91cf<\/h2>\n<p>\u4e0d\u540c\u65b9\u6848\u7684\u4e3b\u8981\u6743\u8861\u70b9\u4e3a\u6210\u672c\u3001\u63a7\u5236\u6743\u548c\u5b9e\u65bd\u590d\u6742\u5ea6\uff1a<\/p>\n<ul>\n<li>\u5f00\u6e90\u81ea\u5efa\uff08Prometheus + ELK\uff09\uff1a<strong>\u63a7\u5236\u529b\u5f3a\u3001\u6210\u672c\u53ef\u63a7<\/strong>\uff0c\u4f46\u9700\u8981\u6295\u5165\u8fd0\u7ef4\uff1b\u9002\u5408\u4e2d\u5927\u578b\u56e2\u961f\u6216\u5bf9\u6570\u636e\u6709\u5408\u89c4\u8981\u6c42\u7684\u4f01\u4e1a\u3002<\/li>\n<li>SaaS\uff08Datadog \u7b49\uff09\uff1a<strong>\u90e8\u7f72\u5feb\u3001\u529f\u80fd\u4e30\u5bcc<\/strong>\uff0c\u9002\u5408\u5e0c\u671b\u5feb\u901f\u5efa\u7acb\u5b8c\u6574\u89c2\u6d4b\u80fd\u529b\u7684\u56e2\u961f\uff1b\u957f\u671f\u6210\u672c\u8f83\u9ad8\u3002<\/li>\n<li>\u4e13\u7528\u5408\u6210 &amp; \u7f51\u7edc\u76d1\u6d4b\uff08ThousandEyes \u7b49\uff09\uff1a\u63d0\u4f9b ISP \u4e0e BGP \u7ea7\u522b\u8bca\u65ad\uff0c\u9002\u5408\u8de8\u56fd\u4e1a\u52a1\u4e0e\u5bf9\u5ef6\u8fdf\u654f\u611f\u7684\u4f01\u4e1a\u3002<\/li>\n<\/ul>\n<h2>\u5e38\u89c1\u95ee\u9898\u4e0e\u5b9e\u8df5\u6280\u5de7<\/h2>\n<ul>\n<li>\u9488\u5bf9 CDN \u7f13\u5b58\u51fb\u7a7f\uff1a\u91c7\u7528\u9884\u70ed\uff08warm-up\uff09\u7b56\u7565\u6216\u4f7f\u7528 stale-while-revalidate \u6765\u51cf\u7f13\u9ad8\u5e76\u53d1\u56de\u6e90\u3002<\/li>\n<li>\u65e5\u5fd7\u91cf\u7206\u53d1\uff1a\u901a\u8fc7\u91c7\u6837\u7b56\u7565\u4e0e\u65e5\u5fd7\u7b49\u7ea7\u63a7\u5236\u6765\u9650\u5236\u5b58\u50a8\u6210\u672c\uff0c\u5e76\u5bf9\u5173\u952e\u8def\u5f84\u542f\u7528 100% \u5168\u91c7\u6837\u77ed\u671f\u6392\u67e5\u3002<\/li>\n<li>\u8de8\u56fd DNS \u4e0e\u5730\u57df\u8def\u7531\u95ee\u9898\uff1a\u7ed3\u5408\u5168\u7403\u63a2\u9488\u548c ISP \u7ea7\u522b\u6570\u636e\u5224\u65ad\u662f\u5426\u9700\u8981\u8c03\u6574 DNS \u5730\u7406\u5b9a\u4f4d\u6216\u4f7f\u7528 Anycast \u4f18\u5316\u3002<\/li>\n<\/ul>\n<p>\u901a\u8fc7\u4e0a\u8ff0\u65b9\u6cd5\uff0c\u53ef\u4ee5\u628a\u76d1\u63a7\u4f53\u7cfb\u4ece\u201c\u88ab\u52a8\u544a\u8b66\u201d\u8f6c\u4e3a\u201c\u4e3b\u52a8\u9884\u9632\u201d\uff0c\u663e\u8457\u63d0\u5347\u4f7f\u7528\u9999\u6e2fVPS\u3001\u9999\u6e2f\u670d\u52a1\u5668\u6216\u7f8e\u56fd\u670d\u52a1\u5668\u7b49\u4e0d\u540c\u8282\u70b9\u7684\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n<h2>\u603b\u7ed3<\/h2>\n<p>\u6784\u5efa\u6709\u6548\u7684 CDN \u8fd0\u7ef4\u76d1\u63a7\u4f53\u7cfb\uff0c\u9700\u8981\u8986\u76d6\u7f51\u7edc\u3001\u534f\u8bae\u3001\u7f13\u5b58\u4e0e\u4e1a\u52a1\u56db\u4e2a\u7ef4\u5ea6\uff0c\u540c\u65f6\u7ed3\u5408\u8fb9\u7f18\u6307\u6807\u3001\u5408\u6210\u68c0\u6d4b\u4e0e\u5206\u5e03\u5f0f\u8ffd\u8e2a\u8fdb\u884c\u7efc\u5408\u5206\u6790\u3002\u5bf9\u4e2d\u5c0f\u578b\u7ad9\u957f\uff0c\u53ef\u4ee5\u4ece\u81ea\u5efa Prometheus + Grafana \u7684\u8f7b\u91cf\u65b9\u6848\u5165\u624b\uff0c\u914d\u5408\u5728\u9999\u6e2fVPS\u3001\u7f8e\u56fdVPS 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