{"id":209749,"date":"2025-10-23T21:47:56","date_gmt":"2025-10-23T13:47:56","guid":{"rendered":"https:\/\/www.server.hk\/blog\/209749\/"},"modified":"2025-10-23T21:47:57","modified_gmt":"2025-10-23T13:47:57","slug":"cdn-116","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/209749\/","title":{"rendered":"CDN\u9650\u9891\u7b56\u7565\u5b9e\u6218\uff1a\u9632\u5237\u3001\u964d\u8f7d\u4e0e\u7528\u6237\u4f53\u9a8c\u5e73\u8861\u6307\u5357"},"content":{"rendered":"<p>\u5728\u6d41\u91cf\u6fc0\u589e\u6216\u906d\u9047\u6076\u610f\u5237\u6d41\u91cf\u65f6\uff0c\u5408\u7406\u7684 CDN \u9650\u9891\u7b56\u7565\u4e0d\u4ec5\u80fd\u4fdd\u62a4\u6e90\u7ad9\u5e76\u964d\u4f4e\u5e26\u5bbd\u4e0e\u8ba1\u7b97\u6210\u672c\uff0c\u8fd8\u80fd\u7ef4\u62a4\u771f\u5b9e\u7528\u6237\u7684\u8bbf\u95ee\u4f53\u9a8c\u3002\u672c\u6587\u9762\u5411\u7ad9\u957f\u3001\u4f01\u4e1a\u4e0e\u5f00\u53d1\u8005\uff0c\u6df1\u5165\u8bb2\u89e3 CDN 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Redis\u3001Memcached\uff09\u5b9e\u73b0\u5168\u5c40\u4e00\u81f4\u6027\u9650\u5236\u3002<\/p>\n<h3>\u57fa\u4e8e\u8eab\u4efd\u7684\u591a\u7ef4\u5ea6\u9650\u9891<\/h3>\n<ul>\n<li>\u6309 IP\uff1a\u6700\u5e38\u89c1\uff0c\u9002\u7528\u4e8e\u516c\u5171\u63a5\u53e3\u6216\u533f\u540d\u8bbf\u95ee\u3002\u9700\u6ce8\u610f NAT\/\u5171\u4eab\u51fa\u53e3\u7684\u8bef\u5224\u3002<\/li>\n<li>\u6309\u7528\u6237\/\u8d26\u53f7\uff1a\u9002\u7528\u4e8e\u767b\u5f55\u7528\u6237\u6216 API Key\uff0c\u53ef\u7cbe\u786e\u533a\u5206\u771f\u5b9e\u7528\u6237\u4e0e\u653b\u51fb\u8005\u3002<\/li>\n<li>\u6309 URL\/\u63a5\u53e3\uff1a\u5bf9\u4e0d\u540c\u8d44\u6e90\u91c7\u53d6\u4e0d\u540c\u7b56\u7565\uff0c\u9759\u6001\u8d44\u6e90\u53ef\u653e\u5bbd\uff0cAPI\/\u5199\u64cd\u4f5c\u5e94\u66f4\u4e25\u683c\u3002<\/li>\n<li>\u6309\u5730\u7406\/ASN\uff1a\u6839\u636e\u8bbf\u95ee\u6765\u6e90\u56fd\u6216\u8fd0\u8425\u5546\u8c03\u6574\u9608\u503c\uff0c\u4f8b\u5982\u5bf9\u6d77\u5916\u8282\u70b9\uff08\u65e5\u672c\u670d\u52a1\u5668\u3001\u97e9\u56fd\u670d\u52a1\u5668\u3001\u65b0\u52a0\u5761\u670d\u52a1\u5668 \u6216 \u7f8e\u56fd\u670d\u52a1\u5668\uff09\u4e0e\u9999\u6e2f\u670d\u52a1\u5668\u7b49\u5206\u914d\u4e0d\u540c\u7b56\u7565\u3002<\/li>\n<\/ul>\n<h2>\u5e38\u89c1\u5e94\u7528\u573a\u666f\u4e0e\u7b56\u7565\u843d\u5730<\/h2>\n<p>\u4e0b\u9762\u7ed3\u5408\u5178\u578b\u573a\u666f\u7ed9\u51fa\u5b9e\u6218\u5efa\u8bae\u4e0e\u5b9e\u73b0\u7ec6\u8282\u3002<\/p>\n<h3>1. \u9632\u5237\u4e0e\u722c\u866b\u63a7\u5236<\/h3>\n<ul>\n<li>\u5728 CDN 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\u7a81\u53d1\u6d41\u91cf\u964d\u8f7d\uff08\u6d3b\u52a8\/\u79d2\u6740\uff09<\/h3>\n<ul>\n<li>\u5728\u6d3b\u52a8\u9884\u70ed\u9636\u6bb5\u5bf9\u9759\u6001\u4e0e\u52a8\u6001\u5185\u5bb9\u533a\u5206\u9650\u6d41\uff1a\u9759\u6001\u8d44\u6e90\u901a\u8fc7 CDN \u7f13\u5b58\u5e76\u5f00\u542f\u957f\u7f13\u5b58\u7b56\u7565\uff0c\u52a8\u6001\u63a5\u53e3\u901a\u8fc7\u4ee4\u724c\u6876\u9650\u6d41\u5e76\u964d\u7ea7\u63d0\u4f9b\u53ea\u8bfb\u5185\u5bb9\u6216\u9759\u6001\u5feb\u7167\u3002<\/li>\n<li>\u5b9e\u73b0\u201c\u964d\u7ea7\u4f18\u5148\u7ea7\u201d\u7b56\u7565\uff1a\u4f18\u5148\u4fdd\u8bc1\u4ed8\u8d39\u7528\u6237\u6216\u767b\u5f55\u7528\u6237\u8bbf\u95ee\uff0c\u533f\u540d\u7528\u6237\u53ef\u80fd\u770b\u5230\u7f13\u5b58\u526f\u672c\u6216\u9650\u901f\u9875\u9762\u3002<\/li>\n<li>\u5229\u7528 CDN \u7684\u8fb9\u7f18\u7f13\u5b58\u9884\u70ed\uff08prefetch\uff09\u548c\u7f13\u5b58\u952e\u5206\u7ea7\uff0c\u964d\u4f4e\u56de\u6e90\u8bf7\u6c42\u3002\u5bf9\u4e8e\u8de8\u5883\u7528\u6237\uff0c\u5408\u7406\u9009\u62e9\u9999\u6e2fVPS\u3001\u7f8e\u56fdVPS \u6216\u6d77\u5916\u670d\u52a1\u5668\u4ee5\u51cf\u5c11\u5ef6\u8fdf\u5e76\u5206\u6563\u6e90\u7ad9\u538b\u529b\u3002<\/li>\n<\/ul>\n<h3>3. API \u4e0e\u79fb\u52a8\u7aef\u9650\u9891<\/h3>\n<ul>\n<li>\u5728 API \u5c42\u52a0\u4e0a\u901f\u7387\u9650\u5236\u5e76\u8fd4\u56de\u660e\u786e\u7684 HTTP \u72b6\u6001\u7801\uff08\u5982 429 Too Many Requests\uff09\uff0c\u540c\u65f6\u5305\u542b Retry-After \u5934\u63d0\u793a\u5ba2\u6237\u7aef\u91cd\u8bd5\u65f6\u95f4\u3002<\/li>\n<li>\u8bbe\u8ba1\u5ba2\u6237\u7aef\u9000\u907f\uff08exponential backoff\uff09\u7b56\u7565\uff0c\u7ed3\u5408\u670d\u52a1\u7aef\u7684\u6ed1\u52a8\u7a97\u53e3\u7b56\u7565\uff0c\u964d\u4f4e\u77ed\u65f6\u7a81\u53d1\u91cd\u8bd5\u5e26\u6765\u7684\u653e\u5927\u6548\u5e94\u3002<\/li>\n<\/ul>\n<h2>\u5b9e\u73b0\u7ec6\u8282\u4e0e\u5de5\u7a0b\u5b9e\u8df5<\/h2>\n<p>\u5728\u5de5\u7a0b\u5b9e\u73b0\u4e0a\uff0c\u9700\u8981\u5e73\u8861\u6027\u80fd\u4e0e\u4e00\u81f4\u6027\u3002<\/p>\n<h3>\u8fb9\u7f18\u4f18\u5148\u3001\u56de\u6e90\u4fdd\u62a4<\/h3>\n<ul>\n<li>\u4f18\u5148\u5728 CDN \u8fb9\u7f18\u8282\u70b9\u505a\u9650\u9891\u4e0e\u521d\u7b5b\uff0c\u51cf\u8f7b\u56de\u6e90\u8d1f\u62c5\u3002\u8fb9\u7f18\u672c\u5730\u8ba1\u6570\u53ef\u7528\u5185\u5b58\u6216\u672c\u5730 redis \u5b9e\u73b0\u9ad8\u901f\u5904\u7406\u3002<\/li>\n<li>\u56de\u6e90\u4fa7\u4ecd\u9700\u8bbe\u7f6e\u5168\u5c40\u9608\u503c\uff0c\u901a\u8fc7\u5206\u5e03\u5f0f\u8ba1\u6570\uff08\u5982\u5168\u5c40 Redis \u96c6\u7fa4\u6216\u57fa\u4e8e KV \u7684\u9650\u9891\u670d\u52a1\uff09\u9632\u6b62\u7ed5\u8fc7\u8fb9\u7f18\u7684\u653b\u51fb\u3002<\/li>\n<\/ul>\n<h3>\u72b6\u6001\u540c\u6b65\u4e0e\u964d\u7ea7\u7b56\u7565<\/h3>\n<ul>\n<li>\u8fb9\u7f18\u8282\u70b9\u4e4b\u95f4\u7684\u72b6\u6001\u4e0d\u540c\u6b65\u4f1a\u5e26\u6765\u77ed\u65f6\u8bef\u5224\uff0c\u901a\u5e38\u7b56\u7565\u662f\u5141\u8bb8\u5c0f\u8303\u56f4\u8bef\u5dee\u5e76\u5728\u51fa\u73b0\u6301\u7eed\u5f02\u5e38\u65f6\u7531\u56de\u6e90\u7edf\u4e00\u51b3\u7b56\u3002<\/li>\n<li>\u63d0\u4f9b\u5206\u7ea7\u964d\u7ea7\uff08\u4f8b\u5982 1. \u8fd4\u56de\u7f13\u5b58\u30012. \u8fd4\u56de\u8f7b\u91cf\u5316\u9875\u9762\u30013. \u8fd4\u56de 429\uff09\uff0c\u5728 UX \u4e0a\u91c7\u7528\u53cb\u597d\u63d0\u793a\u5e76\u7ed9\u51fa\u91cd\u8bd5\u5efa\u8bae\u3002<\/li>\n<\/ul>\n<h3>\u6253\u70b9\u4e0e\u76d1\u63a7<\/h3>\n<ul>\n<li>\u9650\u9891\u7b56\u7565\u5fc5\u987b\u914d\u5408\u5b8c\u5584\u7684\u76d1\u63a7\uff0c\u5305\u62ec QPS\u3001\u54cd\u5e94\u7801\u5206\u5e03\u3001\u88ab\u62e6\u622a\u8bf7\u6c42\u6570\u3001\u8bef\u5224\u7387\u3001\u8bf7\u6c42\u6765\u6e90\u5206\u5e03\uff08\u56fd\u5bb6\u3001ASN\u3001IP\uff09\u7b49\u3002<\/li>\n<li>\u8bbe\u7f6e\u544a\u8b66\u9608\u503c\u4e0e\u81ea\u52a8\u5316\u7b56\u7565\uff08\u5982\u9608\u503c\u89e6\u53d1\u65f6\u81ea\u52a8\u63d0\u5347\u8fb9\u7f18\u9650\u9891\u5f3a\u5ea6\u6216\u4e34\u65f6\u62c9\u9ed1 IP 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