{"id":209885,"date":"2025-10-24T00:45:56","date_gmt":"2025-10-23T16:45:56","guid":{"rendered":"https:\/\/www.server.hk\/blog\/209885\/"},"modified":"2025-10-24T00:45:56","modified_gmt":"2025-10-23T16:45:56","slug":"cdn-176","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/209885\/","title":{"rendered":"CDN\u670d\u52a1\u5546\u66f4\u65b0\u9891\u7387\u5bf9\u6bd4\uff1a\u8c01\u66f4\u5feb\u3001\u66f4\u7a33\uff1f"},"content":{"rendered":"<p>\u5728\u5168\u7403\u5316\u3001\u79fb\u52a8\u5316\u7684\u4e92\u8054\u7f51\u65f6\u4ee3\uff0cCDN\uff08\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\uff09\u4e0d\u4ec5\u8981\u4fdd\u8bc1\u5185\u5bb9\u7684\u5feb\u901f\u4ea4\u4ed8\uff0c\u8fd8\u8981\u5728\u66f4\u65b0\u9891\u7387\u548c\u4e00\u81f4\u6027\u65b9\u9762\u505a\u5230\u53ef\u63a7\u3002\u7ad9\u957f\u3001\u4f01\u4e1a\u7528\u6237\u4e0e\u5f00\u53d1\u8005\u5728\u9009\u62e9 CDN \u4e0e\u90e8\u7f72\u5230\u9999\u6e2f\u670d\u52a1\u5668\u3001\u7f8e\u56fd\u670d\u52a1\u5668\u6216\u6d77\u5916\u670d\u52a1\u5668\uff08\u5982\u65e5\u672c\u670d\u52a1\u5668\u3001\u97e9\u56fd\u670d\u52a1\u5668\u3001\u65b0\u52a0\u5761\u670d\u52a1\u5668\uff09\u65f6\uff0c\u5e38\u4f1a\u5173\u5fc3\uff1a<strong>\u8c01\u7684\u66f4\u65b0\u66f4\u5feb\u3001\u66f4\u7a33\uff1f<\/strong>\u672c\u6587\u4ece\u539f\u7406\u3001\u5e94\u7528\u573a\u666f\u3001\u4f18\u52bf\u5bf9\u6bd4\u4e0e\u9009\u8d2d\u5efa\u8bae\u56db\u4e2a\u7ef4\u5ea6\uff0c\u6df1\u5165\u89e3\u6790 CDN \u66f4\u65b0\u9891\u7387\u76f8\u5173\u7684\u6280\u672f\u7ec6\u8282\uff0c\u5e2e\u52a9\u4f60\u5728\u9999\u6e2fVPS\u3001\u7f8e\u56fdVPS \u7b49\u90e8\u7f72\u573a\u666f\u4e2d\u505a\u51fa\u66f4\u5408\u9002\u7684\u9009\u62e9\u3002<\/p>\n<h2>CDN \u66f4\u65b0\u7684\u57fa\u672c\u539f\u7406\u4e0e\u5173\u952e\u6307\u6807<\/h2>\n<p>\u7406\u89e3\u66f4\u65b0\u9891\u7387\uff0c\u5148\u8981\u660e\u786e CDN \u7f13\u5b58\u7b56\u7565\u7684\u51e0\u4e2a\u6838\u5fc3\u6982\u5ff5\uff1a<\/p>\n<ul>\n<li><strong>TTL\uff08Time To Live\uff09<\/strong>\uff1a\u7f13\u5b58\u9879\u5728\u8fb9\u7f18\u8282\u70b9\u4e0a\u5b58\u6d3b\u7684\u65f6\u95f4\uff0c\u901a\u5e38\u7531 Origin \u7684 Cache-Control\/Expires \u5934\u6216 CDN \u914d\u7f6e\u51b3\u5b9a\u3002<\/li>\n<li><strong>\u4e3b\u52a8\u5237\u65b0\uff08Purge\/Invalidate\uff09<\/strong>\uff1a\u901a\u8fc7 API \u6216\u63a7\u5236\u53f0\u89e6\u53d1\u8fb9\u7f18\u8282\u70b9\u7acb\u5373\u5220\u9664\u6216\u6807\u8bb0\u4e3a\u65e0\u6548\uff0c\u4ece\u800c\u5f3a\u5236\u91cd\u65b0\u62c9\u53d6\u6700\u65b0\u5185\u5bb9\u3002<\/li>\n<li><strong>\u56de\u6e90\u91cd\u9a8c\u8bc1\uff08Revalidation, If-Modified-Since\/ETag\uff09<\/strong>\uff1a\u5f53\u7f13\u5b58\u8fc7\u671f\u6216\u8bbe\u7f6e\u4e86 stale-while-revalidate \u65f6\uff0c\u8fb9\u7f18\u8282\u70b9\u4f1a\u5411\u6e90\u7ad9\u53d1\u9001\u6761\u4ef6\u8bf7\u6c42\u4ee5\u786e\u8ba4\u5185\u5bb9\u662f\u5426\u66f4\u65b0\u3002<\/li>\n<li><strong>\u5206\u53d1\u62d3\u6251\u4e0e POP \u6570\u91cf<\/strong>\uff1a\u8fb9\u7f18\u8282\u70b9\uff08POP\uff09\u8d8a\u591a\u3001\u8d8a\u63a5\u8fd1\u7528\u6237\uff0c\u66f4\u65b0\u4f20\u64ad\u7684\u590d\u6742\u5ea6\u4e0e\u5ef6\u8fdf\u4e5f\u4f1a\u4e0d\u540c\uff1b\u5c24\u5176\u5728\u9999\u6e2f\u3001\u4e1c\u4eac\u3001\u65b0\u52a0\u5761\u7b49\u4e9a\u592a\u8282\u70b9\u5206\u5e03\u4e2d\u5dee\u5f02\u660e\u663e\u3002<\/li>\n<li><strong>\u4e00\u81f4\u6027\u7b56\u7565<\/strong>\uff1a\u5f3a\u4e00\u81f4\u6027\uff08\u5373\u65f6\u751f\u6548\uff09\u4e0e\u6700\u7ec8\u4e00\u81f4\u6027\uff08\u9010\u6b65\u751f\u6548\uff09\u51b3\u5b9a\u4e86\u66f4\u65b0\u5bf9\u5b9e\u65f6\u6027\u8981\u6c42\u7684\u6ee1\u8db3\u7a0b\u5ea6\u3002<\/li>\n<\/ul>\n<h3>\u5ef6\u8fdf\u6765\u6e90\u7684\u6280\u672f\u7ec6\u8282<\/h3>\n<p>CDN \u66f4\u65b0\u5ef6\u8fdf\u5e76\u975e\u5355\u4e00\u56e0\u7d20\u9020\u6210\uff0c\u5e38\u89c1\u6765\u6e90\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u63a7\u5236\u9762\u5230\u6570\u636e\u9762\u7684\u547d\u4ee4\u4f20\u64ad\uff1aPurge \u8bf7\u6c42\u9700\u8981\u5728\u63a7\u5236\u9762\u88ab\u4e0b\u53d1\u5230\u6240\u6709 POP\uff0c\u7f51\u7edc\u6296\u52a8\u6216\u961f\u5217\u5ef6\u8fdf\u4f1a\u5bfc\u81f4\u4e0d\u540c\u8282\u70b9\u54cd\u5e94\u65f6\u95f4\u4e0d\u4e00\u81f4\u3002<\/li>\n<li>\u8fb9\u7f18\u7f13\u5b58\u5f02\u6b65\u56de\u6536\uff1a\u90e8\u5206 CDN \u4e3a\u4e86\u6027\u80fd\u91c7\u7528\u8f6f\u5220\u9664\uff08\u6807\u8bb0\u5931\u6548\uff09\u4e0e\u786c\u5220\u9664\uff08\u76f4\u63a5\u6e05\u9664\uff09\u7ed3\u5408\u7684\u7b56\u7565\uff0c\u8f6f\u5220\u9664\u5728\u8fb9\u7f18\u4ecd\u53ef\u80fd\u6682\u5b58\u65e7\u5185\u5bb9\uff0c\u76f4\u5230\u88ab\u66ff\u6362\u6216\u8fc7\u671f\u3002<\/li>\n<li>DNS \u4e0e Anycast \u6536\u655b\uff1a\u5f53 CDN \u4f7f\u7528 Anycast \u8def\u7531\uff0c\u6d41\u91cf\u53ef\u80fd\u5728\u8282\u70b9\u95f4\u5207\u6362\uff0c\u5f71\u54cd\u67d0\u4e9b\u5730\u57df\uff08\u5982\u9999\u6e2f vs \u7f8e\u56fd\uff09\u770b\u5230\u7684\u7f13\u5b58\u72b6\u6001\u3002<\/li>\n<li>\u56de\u6e90\u5e76\u53d1\u4e0e\u9650\u901f\uff1a\u9ad8\u5e76\u53d1\u7684\u7a81\u53d1\u5237\u65b0\u53ef\u80fd\u89e6\u53d1\u56de\u6e90\u9650\u6d41\u6216 origin shield\uff0c\u5bfc\u81f4\u90e8\u5206\u8bf7\u6c42\u88ab\u5ef6\u8fdf\u5904\u7406\u3002<\/li>\n<\/ul>\n<h2>\u4e0d\u540c\u5e94\u7528\u573a\u666f\u4e0b\u7684\u66f4\u65b0\u9700\u6c42<\/h2>\n<p>\u4e0d\u540c\u7c7b\u578b\u7684\u5185\u5bb9\u5bf9\u66f4\u65b0\u9891\u7387\u7684\u5bb9\u5fcd\u5ea6\u4e0d\u540c\uff0c\u5e38\u89c1\u573a\u666f\u4e3e\u4f8b\u5982\u4e0b\uff1a<\/p>\n<h3>\u9759\u6001\u8d44\u6e90\uff08\u56fe\u7247\u3001JS\u3001CSS\uff09<\/h3>\n<p>\u9759\u6001\u8d44\u6e90\u901a\u5e38\u53ef\u4ee5\u901a\u8fc7\u7248\u672c\u5316\uff08fingerprint\uff09+ \u957f TTL \u6765\u51cf\u5c11\u9891\u7e41\u5237\u65b0\u9700\u6c42\u3002\u63a8\u8350\u505a\u6cd5\u662f\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528\u6587\u4ef6\u540d\u5e26 hash\uff08\u5982 app.12345.js\uff09\uff0c\u8fd9\u6837\u6539\u53d8\u5373\u9700\u66f4\u65b0\u5230\u65b0 URL\uff0c\u907f\u514d purge\u3002<\/li>\n<li>\u5bf9\u4e8e\u7d27\u6025\u4fee\u590d\uff0c\u4f9d\u8d56 Purge API \u505a\u7cbe\u786e\u6e05\u7406\uff1b\u8003\u5bdf CDN \u7684 purge \u5ef6\u8fdf\u4e0e\u5e76\u53d1\u9650\u5236\u3002<\/li>\n<\/ul>\n<h3>\u52a8\u6001\u6216\u534a\u52a8\u6001\u5185\u5bb9\uff08\u7535\u5546\u9875\u9762\u3001API \u54cd\u5e94\uff09<\/h3>\n<p>\u5bf9\u5b9e\u65f6\u6027\u8981\u6c42\u9ad8\u7684 API \u6216\u4ea4\u6613\u6570\u636e\uff0c\u5e38\u7528\u7b56\u7565\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u77ed TTL + \u56de\u6e90\u91cd\u9a8c\u8bc1\uff08Etags\uff09\u6216\u57fa\u4e8e token \u7684\u7f13\u5b58\u952e\u7b56\u7565\uff0c\u786e\u4fdd\u4e1a\u52a1\u903b\u8f91\u80fd\u5feb\u901f\u53cd\u6620\u53d8\u66f4\u3002<\/li>\n<li>\u4f7f\u7528 CDN \u7684\u8fb9\u7f18\u8ba1\u7b97\u6216 Worker\uff08\u5982\u679c\u652f\u6301\uff09\uff0c\u5728\u8fb9\u7f18\u5c42\u505a\u90e8\u5206\u52a8\u6001\u62fc\u88c5\uff0c\u51cf\u5c11\u56de\u6e90\u9891\u7387\u3002<\/li>\n<\/ul>\n<h3>\u5a92\u4f53\u4e0e\u6d41\u5a92\u4f53\uff08\u89c6\u9891\u3001\u76f4\u64ad\uff09<\/h3>\n<p>\u5927\u6587\u4ef6\u548c\u5b9e\u65f6\u6d41\u573a\u666f\u66f4\u770b\u91cd\u4f20\u8f93\u7a33\u5b9a\u6027\u4e0e\u5206\u7247\u66f4\u65b0\u673a\u5236\uff0c\u5e38\u89c1\u505a\u6cd5\uff1a<\/p>\n<ul>\n<li>\u91c7\u7528 HLS\/DASH \u5206\u7247 + \u8fb9\u7f18\u7f13\u5b58\uff0c\u5206\u7247\u66f4\u65b0\u7531\u64ad\u653e\u5668\u63a7\u5236\uff0c\u8fb9\u7f18\u53ea\u9700\u4fdd\u8bc1\u6700\u65b0\u5206\u7247\u7684\u53ef\u7528\u6027\u3002<\/li>\n<li>\u5728\u9700\u8981\u5373\u65f6\u4e0b\u7ebf\u5185\u5bb9\u65f6\uff0c\u4f9d\u8d56\u5f3a\u4e00\u81f4\u6027\u6216\u66f4\u5feb\u7684 purge \u673a\u5236\u3002<\/li>\n<\/ul>\n<h2>\u8c01\u66f4\u5feb\uff1f\u8c01\u66f4\u7a33\uff1f\uff08\u4ece\u6280\u672f\u89d2\u5ea6\u7684\u5bf9\u6bd4\u7ef4\u5ea6\uff09<\/h2>\n<p>\u201c\u5feb\u201d\u4e0e\u201c\u7a33\u201d\u5e76\u975e\u7edd\u5bf9\uff0c\u53d6\u51b3\u4e8e\u4ee5\u4e0b\u6280\u672f\u7ef4\u5ea6\uff1a<\/p>\n<h3>1. Purge\/Invalidate \u5ef6\u8fdf<\/h3>\n<p>\u4e00\u4e2a\u4f18\u79c0\u7684 CDN \u5e94\u63d0\u4f9b\u4f4e\u5ef6\u8fdf\u7684 Purge API\uff0c\u652f\u6301\u6279\u91cf\u548c\u6cdb\u5339\u914d\uff08\u652f\u6301\u901a\u914d\u7b26\uff09\u7684\u6e05\u7406\u80fd\u529b\u3002\u5bf9\u4e8e\u8981\u6c42\u6781\u5feb\u56de\u6eda\u7684\u573a\u666f\uff0c\u5e94\u8be5\u4f18\u5148\u9009\u62e9 Purge \u5e73\u5747\u54cd\u5e94\u5728\u79d2\u7ea7\u6216\u4f4e\u5341\u79d2\u7ea7\u7684\u670d\u52a1\u5546\u3002<\/p>\n<h3>2. \u5f3a\u4e00\u81f4\u6027\u529f\u80fd<\/h3>\n<p>\u90e8\u5206 CDN \u63d0\u4f9b\u5f3a\u4e00\u81f4\u6027\u914d\u7f6e\uff08\u6bd4\u5982\u5f00\u542f\u540e\u5bf9\u67d0\u4e9b\u8def\u5f84\u7684\u66f4\u65b0\u4f1a\u8d70\u540c\u6b65\u4e0b\u53d1\uff09\uff0c\u9002\u5408\u5bf9\u91d1\u878d\u3001\u7269\u6d41\u7b49\u9ad8\u4e00\u81f4\u6027\u573a\u666f\u3002\u5f3a\u4e00\u81f4\u6027\u901a\u5e38\u4ee5\u727a\u7272\u5199\u5165\u6027\u80fd\u6216\u589e\u52a0\u6210\u672c\u4e3a\u4ee3\u4ef7\uff0c\u4f46\u80fd\u4fdd\u8bc1\u66f4\u7a33\u7684\u66f4\u65b0\u6548\u679c\u3002<\/p>\n<h3>3. Edge \u7f13\u5b58\u7b56\u7565\u4e0e\u56de\u6e90\u4fdd\u62a4<\/h3>\n<p>\u652f\u6301 stale-while-revalidate\u3001stale-if-error\u3001origin shield\uff08\u96c6\u4e2d\u56de\u6e90\u70b9\uff09\u7b49\u529f\u80fd\u7684 CDN\uff0c\u5728\u9ad8\u5e76\u53d1\u66f4\u65b0\u573a\u666f\u4e0b\u66f4\u7a33\u5065\uff0c\u56e0\u4e3a\u5b83\u4eec\u80fd\u63a7\u5236\u56de\u6e90\u538b\u529b\u5e76\u5728\u56de\u6e90\u5f02\u5e38\u65f6\u63d0\u4f9b\u53ef\u7528\u7684\u65e7\u7248\u672c\u4f5c\u4e3a\u964d\u7ea7\u3002<\/p>\n<h3>4. POP \u8986\u76d6\u4e0e\u7f51\u7edc\u8d28\u91cf<\/h3>\n<p>\u5982\u679c\u4f60\u7684\u7528\u6237\u4e3b\u8981\u5206\u5e03\u5728\u4e9a\u592a\uff08\u5982\u9999\u6e2f\u3001\u65e5\u672c\u3001\u97e9\u56fd\u3001\u65b0\u52a0\u5761\uff09\uff0c\u4f18\u5148\u9009\u62e9\u5728\u8fd9\u4e9b\u5730\u533a POP \u4e30\u5bcc\u4e14\u7f51\u7edc\u8def\u5f84\u4f18\u5316\u826f\u597d\u7684 CDN\u3002\u8282\u70b9\u5206\u5e03\u76f4\u63a5\u5f71\u54cd\u5230\u66f4\u65b0\u4f20\u64ad\u7684\u901f\u5ea6\u4e0e\u4e00\u81f4\u6027\uff0c\u5c24\u5176\u5f53\u4f60\u5728\u9999\u6e2f\u670d\u52a1\u5668\u6216\u9999\u6e2fVPS \u4e0a\u6258\u7ba1\u6e90\u7ad9\u65f6\uff0c\u533a\u57df\u7f51\u7edc\u8df3\u6570\u4e0e\u8def\u7531\u7b56\u7565\u4f1a\u663e\u8457\u5f71\u54cd\u611f\u77e5\u5ef6\u8fdf\u3002<\/p>\n<h3>5. API \u80fd\u529b\u4e0e\u81ea\u52a8\u5316\u652f\u6301<\/h3>\n<p>\u5bf9\u5f00\u53d1\u8005\u53cb\u597d\u7684 CDN \u63d0\u4f9b\u5b8c\u5584\u7684 RESTful API\u3001Webhooks\u3001\u65e5\u5fd7\u5bfc\u51fa\u4e0e\u6743\u9650\u63a7\u5236\uff0c\u53ef\u4ee5\u628a\u6e05\u7406\/\u56de\u6eda\u6d41\u7a0b\u7eb3\u5165 CI\/CD\uff0c\u663e\u8457\u63d0\u5347\u66f4\u65b0\u7684\u53ef\u63a7\u6027\u4e0e\u901f\u5ea6\u3002<\/p>\n<h2>\u9009\u8d2d\u5efa\u8bae\uff1a\u5982\u4f55\u5728\u9999\u6e2f\/\u6d77\u5916\u90e8\u7f72\u4e2d\u6743\u8861\u201c\u5feb\u201d\u4e0e\u201c\u7a33\u201d<\/h2>\n<p>\u5728\u9009\u62e9 CDN \u4e0e\u6e90\u7ad9\uff08\u4f8b\u5982\u9999\u6e2f\u670d\u52a1\u5668\u3001\u7f8e\u56fd\u670d\u52a1\u5668\u6216\u6d77\u5916\u670d\u52a1\u5668\u7b49\uff09\u7ec4\u5408\u65f6\uff0c\u5efa\u8bae\u6309\u4ee5\u4e0b\u6b65\u9aa4\u8bc4\u4f30\uff1a<\/p>\n<ul>\n<li><strong>\u660e\u786e\u66f4\u65b0\u9700\u6c42\uff1a<\/strong>\u9759\u6001\u8d44\u6e90\u4f18\u5148\u8003\u8651\u7248\u672c\u5316\u4e0e\u957f TTL\uff1b\u52a8\u6001\u6570\u636e\u9700\u77ed TTL + \u56de\u6e90\u91cd\u9a8c\u8bc1\u6216\u8fb9\u7f18\u8ba1\u7b97\u3002<\/li>\n<li><strong>\u8bc4\u4f30 Purge \u80fd\u529b\uff1a<\/strong>\u6d4b\u8bd5 Purge API \u5ef6\u8fdf\u3001\u652f\u6301\u7684\u5e76\u53d1\u91cf\u4e0e\u901a\u914d\u7b26\u6e05\u7406\u80fd\u529b\uff0c\u6a21\u62df\u771f\u5b9e\u56de\u6eda\u573a\u666f\u3002<\/li>\n<li><strong>\u68c0\u67e5\u4e00\u81f4\u6027\u9009\u9879\uff1a<\/strong>\u662f\u5426\u6709\u5f3a\u4e00\u81f4\u6027\u6216\u53ef\u914d\u7f6e\u7684\u7f13\u5b58\u7b56\u7565\uff08stale-while-revalidate\u3001origin shield\uff09\uff0c\u4ee5\u53ca\u8fd9\u4e9b\u9009\u9879\u7684\u6210\u672c\u4e0e\u6027\u80fd\u5f71\u54cd\u3002<\/li>\n<li><strong>\u770b\u5730\u57df\u8986\u76d6\uff1a<\/strong>\u82e5\u7528\u6237\u5728\u9999\u6e2f\u3001\u65e5\u672c\u3001\u97e9\u56fd\u6216\u65b0\u52a0\u5761\u5bc6\u96c6\u5206\u5e03\uff0c\u4f18\u5148\u9009\u62e9\u5728\u8fd9\u4e9b\u533a\u57df\u5177\u5907 POP \u7684\u4f9b\u5e94\u5546\uff1b\u4e0e\u6e90\u7ad9\uff08\u9999\u6e2f\u670d\u52a1\u5668\u6216\u65e5\u672c\u670d\u52a1\u5668\u7b49\uff09\u7f51\u7edc\u8fde\u901a\u6027\u8981\u597d\u3002<\/li>\n<li><strong>\u81ea\u52a8\u5316\u4e0e\u76d1\u63a7\uff1a<\/strong>\u9009\u62e9\u652f\u6301 Webhook\u3001\u65e5\u5fd7\u5bfc\u51fa\u548c\u8be6\u7ec6\u7f13\u5b58\u547d\u4e2d\u7387\u7edf\u8ba1\u7684\u670d\u52a1\uff0c\u4fbf\u4e8e\u7eb3\u5165 CI\/CD \u548c\u76d1\u63a7\u544a\u8b66\u3002<\/li>\n<li><strong>\u5bb9\u707e\u4e0e\u56de\u9000\u7b56\u7565\uff1a<\/strong>\u5bf9\u4e8e\u5173\u952e\u4e1a\u52a1\uff0c\u51c6\u5907\u591a CDN \u6df7\u5408\u7b56\u7565\u6216\u4f7f\u7528\u6d41\u91cf\u5207\u6362\uff08\u4f8b\u5982\u4e3b\u5907 CDN\uff09\u4ee5\u63d0\u9ad8\u53ef\u7528\u6027\u4e0e\u7a33\u5b9a\u6027\u3002<\/li>\n<\/ul>\n<h2>\u5b9e\u8df5\u6280\u5de7\uff1a\u51cf\u5c11\u5bf9\u5373\u65f6 Purge \u7684\u4f9d\u8d56<\/h2>\n<p>\u9891\u7e41\u4f9d\u8d56 purge \u6709\u6210\u672c\u4e0e\u98ce\u9669\uff0c\u53ef\u901a\u8fc7\u4ee5\u4e0b\u624b\u6bb5\u964d\u4f4e\u9700\u6c42\uff1a<\/p>\n<ul>\n<li>\u8d44\u6e90\u6307\u7eb9\u5316\uff08\u6587\u4ef6\u540d hash\uff09\u66ff\u4ee3 purge\u3002<\/li>\n<li>\u4f7f\u7528\u77ed TTL + Cache-Control \u914d\u5408 ETag \u8fdb\u884c\u6761\u4ef6\u56de\u6e90\u3002<\/li>\n<li>\u5bf9\u975e\u5173\u952e\u5185\u5bb9\u4f7f\u7528 eventual consistent \u66f4\u65b0\u7b56\u7565\uff0c\u5173\u952e\u5185\u5bb9\u4f7f\u7528\u5f3a\u4e00\u81f4\u6027\u8def\u5f84\u6216\u76f4\u63a5\u56de\u6e90\u3002<\/li>\n<li>\u5728\u90e8\u7f72\u7ba1\u9053\u4e2d\u52a0\u5165\u9884\u70ed\uff08pre-warm\uff09\u6216\u56de\u6e90\u9650\u6d41\u7b56\u7565\uff0c\u907f\u514d\u66b4\u529b\u5237\u65b0\u7684\u56de\u6e90\u51b2\u51fb\u3002<\/li>\n<\/ul>\n<p>\u7efc\u4e0a\uff0cCDN \u7684\u201c\u66f4\u5feb\u201d\u5f80\u5f80\u4f9d\u8d56\u4e8e Purge API \u7684\u54cd\u5e94\u65f6\u95f4\u3001POP \u7684\u5206\u5e03\u4e0e\u63a7\u5236\u9762\u5230\u6570\u636e\u9762\u7684\u4f20\u64ad\u6548\u7387\uff1b\u800c\u201c\u66f4\u7a33\u201d\u5219\u4f9d\u8d56\u4e8e\u7f13\u5b58\u7b56\u7565\u3001\u56de\u6e90\u4fdd\u62a4\u4e0e\u4e00\u81f4\u6027\u80fd\u529b\u3002\u4e0d\u540c\u4e1a\u52a1\u5728\u9999\u6e2f\u670d\u52a1\u5668\u3001\u7f8e\u56fdVPS \u6216\u5176\u4ed6\u6d77\u5916\u670d\u52a1\u5668\u4e0a\u90e8\u7f72\u65f6\uff0c\u5e94\u6839\u636e\u8bbf\u95ee\u5206\u5e03\u4e0e\u53ef\u63a5\u53d7\u7684\u66f4\u65b0\u5ef6\u8fdf\u53bb\u53d6\u820d\u3002<\/p>\n<p>\u5982\u679c\u4f60\u6b63\u5728\u4e3a\u81ea\u5df1\u7684\u7ad9\u70b9\u6216\u4f01\u4e1a\u9009\u62e9\u5408\u9002\u7684\u670d\u52a1\u5668\u4e0e CDN \u914d\u7f6e\uff0c\u53ef\u4ee5\u5148\u5728\u6d4b\u8bd5\u73af\u5883\u91cc\u5bf9\u6bd4 Purge \u5ef6\u8fdf\u3001\u7f13\u5b58\u547d\u4e2d\u7387\u4e0e\u56de\u6e90\u538b\u529b\uff0c\u7ed3\u5408\u9999\u6e2fVPS \u6216\u7f8e\u56fdVPS 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