{"id":220337,"date":"2022-07-10T06:20:35","date_gmt":"2022-07-09T22:20:35","guid":{"rendered":"https:\/\/www.idc.net\/help\/220337\/"},"modified":"2022-07-10T06:20:35","modified_gmt":"2022-07-09T22:20:35","slug":"%e8%b0%81%e8%bf%98%e4%b8%8d%e6%87%82%e5%88%86%e5%b8%83%e5%bc%8f%e7%b3%bb%e7%bb%9f%e6%80%a7%e8%83%bd%e8%b0%83%e4%bc%98%ef%bc%8c%e8%af%b7%e6%8a%8a%e8%bf%99%e7%af%87%e6%96%87%e7%ab%a0%e7%94%a9%e7%bb%99","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/220337\/","title":{"rendered":"\u8c01\u8fd8\u4e0d\u61c2\u5206\u5e03\u5f0f\u7cfb\u7edf\u6027\u80fd\u8c03\u4f18\uff0c\u8bf7\u628a\u8fd9\u7bc7\u6587\u7ae0\u7529\u7ed9\u4ed6~"},"content":{"rendered":"<h1>\u8c01\u8fd8\u4e0d\u61c2\u5206\u5e03\u5f0f\u7cfb\u7edf\u6027\u80fd\u8c03\u4f18\uff0c\u8bf7\u628a\u8fd9\u7bc7\u6587\u7ae0\u7529\u7ed9\u4ed6~<\/h1>\n<p><span>\u4f5c\u8005\uff1a\u9676\u8f89<\/span> 2020-12-21 14:58:25<br \/>\n<i><\/i><br \/>\n<span>\u65b0\u95fb<\/span><br \/>\n<i><\/i><br \/>\n<span>\u524d\u7aef<\/span><br \/>\n<i><\/i><br \/>\n<span>\u5206\u5e03\u5f0f<\/span> \u4e0d\u7ba1\u662fX86\u3001ARM\uff0c\u8fd8\u662f Linux\u3001Windows\uff0c\u4e0d\u7ba1\u662f\u811a\u672c\u8bed\u8a00\u8fd8\u662fC\u8bed\u8a00\uff0c\u8fd9\u79cd\u4f18\u5316\u90fd\u6709\u6548\u7684\uff0c\u76f8\u5bf9\u6765\u8bf4\u6536\u76ca\u6bd4\u8f83\u5927\u3001\u6bd4\u8f83\u666e\u60e0\u4e00\u4e9b\uff0c\u6211\u628a\u5b83\u5217\u4e3a\u57fa\u7840\u8d44\u6e90\u4f18\u5316\u3002 <\/p>\n<p>&nbsp;\u4f5c\u8005\u7b80\u4ecb\uff1a\u9676\u8f89\uff0c\u6bd5\u4e1a\u4e8e\u897f\u5b89\u4ea4\u901a\u5927\u5b66\u8ba1\u7b97\u673a\u79d1\u5b66\u4e0e\u6280\u672f\u4e13\u4e1a\uff0c\u76ee\u524d\u5728\u676d\u5dde\u667a\u94fe\u8fbe\u6570\u636e\u6709\u9650\u516c\u53f8\u62c5\u4efb CTO \u517c\u8054\u5408\u521b\u59cb\u4eba\uff0c\u4e13\u6ce8\u4e8e\u7528\u4e92\u8054\u7f51\u6280\u672f\u5e2e\u52a9\u5efa\u7b51\u884c\u4e1a\u5b9e\u73b0\u8f6c\u578b\u5347\u7ea7\uff0c\u66fe\u5148\u540e\u5728\u534e\u4e3a\u3001\u817e\u8baf\u3001\u601d\u79d1\u3001\u963f\u91cc\u5df4\u5df4\u7b49\u516c\u53f8\u4ece\u4e8b\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e0b\u7684\u6570\u636e\u5904\u7406\u5de5\u4f5c\uff0c\u817e\u8baf\u4e91\u6700\u6709\u4ef7\u503c\u4e13\u5bb6TVP\u3002\u5bf9 Linux \u4e0b\u7684\u9ad8\u6027\u80fd\u670d\u52a1\u5668\u5f00\u53d1\u3001\u5927\u89c4\u6a21\u5206\u5e03\u5f0f\u7cfb\u7edf\u7684\u8bbe\u8ba1\u6709\u7740\u4e30\u5bcc\u7ecf\u9a8c\u3002\u8457\u6709\u300a\u6df1\u5165\u7406\u89e3 Nginx\uff1a\u6a21\u5757\u5f00\u53d1\u4e0e\u67b6\u6784\u89e3\u6790\u300b\u4e00\u4e66\u3002<\/p>\n<p>\u672c\u6b21\u5206\u4eab\u5206\u62104\u5757\uff1a<\/p>\n<p>\u57fa\u7840\u8d44\u6e90\u4f18\u5316\u3002\u4e0d\u7ba1\u662fX86\u3001ARM\uff0c\u8fd8\u662f Linux\u3001Windows\uff0c\u4e0d\u7ba1\u662f\u811a\u672c\u8bed\u8a00\u8fd8\u662fC\u8bed\u8a00\uff0c\u8fd9\u79cd\u4f18\u5316\u90fd\u6709\u6548\u7684\uff0c\u76f8\u5bf9\u6765\u8bf4\u6536\u76ca\u6bd4\u8f83\u5927\u3001\u6bd4\u8f83\u666e\u60e0\u4e00\u4e9b\uff0c\u6211\u628a\u5b83\u5217\u4e3a\u57fa\u7840\u8d44\u6e90\u4f18\u5316\u3002<\/p>\n<p>\u7f51\u7edc\u6548\u7387\u4f18\u5316\u3002\u8fd9\u5305\u542b\u4e09\u4e2a\u5c42\u97623\u5c42\uff0c\u4e00\u662f\u7cfb\u7edf\u5c42\uff0c\u4e8c\u662f\u5e94\u7528\u5c42\uff0c\u4e09\u662f\u4f20\u8f93\u6548\u7387\u7684\u4f18\u5316\u3002<\/p>\n<p>\u964d\u4f4e\u8bf7\u6c42\u65f6\u5ef6\u3002\u600e\u4e48\u7528\u7f13\u5b58\u7b49\uff0c\u6211\u4eec\u5173\u6ce8\u7528\u6237\u7684\u4f53\u9a8c\uff0c\u80fd\u8ba9\u5355\u6b21\u8bf7\u6c42\u7684\u901f\u5ea6\u66f4\u5feb\u4e00\u4e9b\u3002<\/p>\n<p>\u541e\u5410\u91cf\u3002\u63d0\u5347\u7cfb\u7edf\u5e76\u53d1\uff0c\u4ece\u541e\u5410\u91cf\u6765\u8bf4\u600e\u4e48\u63d0\u5347\u7cfb\u7edf\u7684\u5e76\u53d1\u3002<\/p>\n<h2>\u4e00\u3001\u57fa\u7840\u8d44\u6e90\u4f18\u5316<\/h2>\n<p>\u57fa\u7840\u8d44\u6e90\u7684\u4f18\u5316\uff0c\u5728\u6211\u770b\u6765\u6838\u5fc3\u662f\u63d0\u5347\u8d44\u6e90\u7684\u5229\u7528\u7387\uff0c\u8d44\u6e90\u6211\u4eec\u5206\u4e3a\u56db\u5757\uff1a<\/p>\n<p style=\"text-align: center\">\n<ul>\n<li>CPU \u7f13\u5b58\u3002CPU \u7684\u7f13\u5b58\u5171\u5206\u4e3a3\u7ea7\uff0cCPU\u8bbf\u95ee\u7f13\u5b58\u7684\u65f6\u5ef6\u5e94\u8be5\u5728 10 \u7eb3\u79d2\u5de6\u53f3\uff0c\u4e00\u7ea7\u7f13\u5b58\u53ef\u80fd\u53ea\u6709 1 \u7eb3\u79d2\u5de6\u53f3\u3002\u8fd9\u4e2a\u65f6\u5019\u6211\u4eec\u975e\u5e38\u5173\u6ce8\u600e\u4e48\u8ba9 CPU \u7f13\u5b58\u547d\u4e2d\u7387\u63d0\u5347\uff0c\u5b83\u662f\u4e00\u4e2a\u666e\u60e0\u7684\u4f18\u5316\u65b9\u5f0f\u3002<\/li>\n<li>\u5185\u5b58\u3002\u5185\u5b58\u6709\u767e\u7eb3\u79d2\u7ea7\u522b\u7684\u901f\u5ea6\uff0c\u5f53\u4f60\u7684\u9891\u7387\u975e\u5e38\u9ad8\u7684\u65f6\u5019\u4e5f\u4e0d\u662f\u90a3\u4e48\u5feb\uff0c\u6240\u4ee5\u4f1a\u6709\u5f88\u591a\u7684\u5185\u5b58\u6c60\uff0c\u6bd4\u5982\u8bf4 C\uff0cJVM\u3001Python\u3001Golang\u3001lua \u7b49\u90fd\u6709\u81ea\u5df1\u7684\u5185\u5b58\u6c60\uff0c\u8fd9\u4e9b\u5185\u5b58\u6c60\u7684\u600e\u4e48\u63d0\u5347\u5206\u914d\u901f\u5ea6\u3001\u51cf\u5c11\u788e\u7247\u3001\u63d0\u5347\u5185\u5b58\u7684\u5229\u7528\u7387\u3002<\/li>\n<li>\u78c1\u76d8\u3002\u78c1\u76d8\u6709\u4e24\u7c7b\uff0c\u4e00\u7c7b\u662fHDD\uff0c\u673a\u68b0\u786c\u76d8\u7684\u5bfb\u5740\u5728\u4e03\u516b\u6beb\u79d2\uff0c\u5b83\u7684\u78c1\u5934\u65cb\u8f6c\u901f\u5ea6\u662f\u6bd4\u8f83\u6162\u7684\uff0c\u4ee5\u5f80\u7684\u5f88\u591a\u8f6f\u4ef6\u6280\u672f\u90fd\u5728\u4f18\u5316\u8fd9\u65b9\u9762\uff0c\u7279\u522b\u662f PageCache \u78c1\u76d8\u9ad8\u901f\u7f13\u5b58\u7684\u4f7f\u7528\uff0c\u5305\u62ec\u7535\u68af\u8c03\u5ea6\u7b97\u6cd5\u3001\u96f6\u62f7\u8d1d\uff0c\u6216\u8005 Direct IO \u7b49\u7b49\u90fd\u662f\u56f4\u7ed5\u7740\u673a\u68b0\u78c1\u76d8\u6765\u505a\uff1b\u53e6\u5916\u4e00\u7c7bSSD\uff0cSSD\u8ddf\u673a\u68b0\u786c\u76d8\u5b8c\u5168\u662f\u53e6\u4e00\u79cd\u65b9\u5f0f\uff0c\u5305\u62ec\u7f16\u7a0b\u65b9\u5f0f\u3001\u4f18\u5316\u65b9\u5f0f\u90fd\u8ddf\u4f20\u7edf\u7684\u65b9\u6cd5\u4e0d\u4e00\u6837\u3002\u6240\u4ee5\u8fd9\u91cc\u7b80\u5355\u603b\u7ed3\u4e00\u4e0b\uff0c\u4ee5 PageCache \u4f5c\u4e3a\u5207\u5165\u70b9\uff0c\u5305\u62ec\u547d\u4e2d\u7387\u3001IO\u8c03\u5ea6\u7b97\u6cd5\u3002<\/li>\n<li>\u8c03\u5ea6\u3002\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\u6709\u5f88\u591a\u7684\u8bf7\u6c42\uff0c\u8fd9\u4e9b\u8bf7\u6c42\u5982\u4f55\u5207\u6362\uff0c\u65e0\u8bba\u662f\u591a\u8fdb\u7a0b\u3001\u591a\u7ebf\u7a0b\uff0c\u8fd8\u662f\u534f\u7a0b\uff0c\u600e\u4e48\u6837\u80fd\u8ba9\u5b83\u7684\u8c03\u5ea6\u6027\u80fd\u66f4\u9ad8\u3001\u6548\u7387\u66f4\u9ad8\uff0c\u6570\u636e\u7684\u540c\u6b65\u66f4\u5feb\uff1f<\/li>\n<\/ul>\n<p style=\"text-align: center\">\n<p><strong>CPU<\/strong><\/p>\n<p>CPU \u7f13\u5b58\u7684\u8bdd\u9898\u6bd4\u8f83\u591a\uff0c\u8fd9\u91cc\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u6211\u76f8\u4fe1\u5404\u4f4d\u90fd\u7528\u8fc7 Nginx\uff0cNginx \u6709\u4e24\u4e2a\u54c8\u5e0c\u8868\uff0c\u4e00\u4e2a\u662f\u57df\u540d\u54c8\u5e0c\u8868\uff0c\u5982\u679c\u53ea\u662f\u7528\u666e\u901a\u76843\u7ea7\u57df\u540d\uff0c\u53ef\u80fd\u89e6\u78b0\u4e0d\u5230\u5b83\u7684\u4e0a\u754c\uff0c\u4f46\u662f\u5982\u679c\u67094\u7ea7\u30015\u7ea7\u6216\u8005\u662f\u66f4\u591a\u7ea7\u7684\u57df\u540d\uff0c\u53ef\u80fd\u5c31\u4f1a\u8d85\u8fc764\u5b57\u8282\uff0c\u8fd9\u65f6\u4f60\u8981\u8c03\u5927\u54c8\u5e0c\u8868\u7684 bucket_size\u3002<\/p>\n<p>\u518d\u4e3e\u4e2a\u4f8b\u5b50\uff0cNginx \u6700\u5f3a\u5927\u7684\u5730\u65b9\u5728\u4e8e\u5b83\u7684\u53d8\u91cf\uff0c\u4efb\u4f55\u529f\u80fd\u90fd\u80fd\u591f\u901a\u8fc7\u53d8\u91cf\u5b9e\u73b0\u3002\u53d8\u91cf\u4e5f\u662f\u5b58\u5728\u54c8\u5e0c\u8868\u4e2d\u3002\u5f53\u8fd9\u4e2a\u53d8\u91cf\u6bd4\u8f83\u5927\u7684\u65f6\u5019\uff0c\u4e00\u6837\u4e5f\u8981\u8c03\u6574\u5230 64 \u5b57\u8282\u3002<\/p>\n<p>\u90a3\u4e48\uff0c\u4e3a\u4ec0\u4e48\u662f\u521d\u59cb\u7684 64 \u5b57\u8282\uff1f\u6bd4\u5982\u60f3\u8c03\u5230 100 \u5b57\u8282\u53ef\u4e0d\u53ef\u4ee5\uff0c\u4e0d\u53ef\u4ee5\u7684\u3002\u8981\u8c03\u5230 128 \u5b57\u8282\u6216\u8005\u662f\u662f 64 \u5b57\u8282\u7684\u6574\u6570\u500d\u3002<\/p>\n<p>\u4e3a\u4ec0\u4e48\u4f1a\u8fd9\u6837\uff1f\u5173\u4e8e CPU \u7f13\u5b58\uff0c\u6211\u8fd9\u91cc\u4e3e\u4e00\u4e2a\u4f8b\u5b50\u3002\u5927\u6982\u57282005\u5e74\uff0cCPU \u7684\u9891\u7387\u5927\u6982\u5347\u5230 3Ghz~4Ghz \u540e\u5c31\u4e0d\u518d\u63d0\u5347\uff0c\u56e0\u4e3a\u5355\u4e2a CPU \u7684\u53d1\u70ed\u91cf\u592a\u5927\uff0c\u6240\u4ee5\u53ea\u80fd\u6a2a\u5411\u53d1\u5c55\u3002<\/p>\n<p>\u591a\u4e2a CPU \u6709\u4e00\u4e2a\u597d\u5904\u5c31\u662f\u771f\u6b63\u5e76\u53d1\u3002\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u7684\u5e76\u53d1\u662f\u901a\u8fc7\u65f6\u95f4\u7247\u5207\u6362\u5b8c\u6210\u7684\uff0c\u5fae\u89c2\u4e0a\u4e0d\u662f\u771f\u6b63\u7684\u5e76\u53d1\u3002\u800c\u591a\u6838 CPU \u7684\u5e76\u53d1\u6709\u4e00\u4e2a\u95ee\u9898\uff0c\u5f53\u4e24\u4e2a CPU \u540c\u65f6\u8bbf\u95ee\u4e86\u4e24\u4e2a\u8fdb\u7a0b\u6216\u7ebf\u7a0b\uff0c\u8fd9\u4e24\u4e2a\u6570\u636e\u540c\u65f6\u843d\u5230\u4e86\u4e00\u4e2a 64 \u5b57\u8282\u4e4b\u5185\uff0cCPU \u7684\u7f13\u5b58\u4e0d\u662f\u4e00\u4e2a\u5b57\u8282\u62c9\u7684\uff0c\u800c\u662f\u4e00\u6279\u62c9\u7684\uff0c\u6bcf\u4e00\u6279 64 \u5b57\u8282\u3002<\/p>\n<p>\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0cJava \u4e2d\u6709\u4e00\u4e2a\u5e38\u89c1\u7684\u8bcd\u53eb\u586b\u5145\u6cd5\uff0c\u6211\u521a\u521a\u8bb2\u7684 Nginx \u4e5f\u662f\u586b\u5145\u6cd5\uff0c\u7528\u4e0d\u4e86\u8fd9\u4e48\u591a\u5b57\u8282\uff0c\u4f46\u8981\u586b\u8fd9\u4e48\u591a\uff0c\u4f7f\u5f97\u5fae\u89c2\u4e0a\u771f\u6b63\u5e76\u53d1\u3002\u56e0\u4e3a CPU \u8981\u4fdd\u8bc1\u4e00\u81f4\u6027\uff0c\u5982\u679c\u6570\u636e\u6ca1\u6709\u4e00\u81f4\u6027\u5c31\u6ca1\u6709\u9ad8\u6027\u80fd\u548c\u6b63\u786e\u6027\u53ef\u8a00\u3002CPU \u7684\u7f13\u5b58\u5bf9\u5f88\u591a\u4ee3\u7801\u90fd\u6709\u5f71\u54cd\uff0c\u5e76\u4e0d\u662f\u53ea\u5bf9\u5199\u4e2d\u95f4\u4ef6\u7684\u4eba\u6709\u5f71\u54cd\uff0c\u5bf9\u5e94\u7528\u5c42\u7684\u5f00\u53d1\u4eba\u5458\u4e5f\u662f\u6709\u5f71\u54cd\u7684\u3002<\/p>\n<p style=\"text-align: center\">\n<p><strong>\u5185\u5b58<\/strong><\/p>\n<p>\u5173\u4e8e\u5185\u5b58\u6c60\u8fd9\u4e00\u65b9\u9762\uff0c\u6211\u60f3\u8d773\u5e74\u524d\u6211\u7ed9\u534e\u4e3a\u505a\u7684\u4e00\u573a\u5185\u8bad\u3002\u5f53\u65f6\u6709\u4e00\u4e2a\u540c\u5b66\u95ee\u6211\uff0cNginx \u8981\u4e0d\u8981\u6362\u6210\u8c37\u6b4c\u7684 TCMalloc\uff1f\uff08TCMalloc \u662f Google \u5f00\u53d1\u7684\u4e00\u4e2a\u5185\u5b58\u6c60\u3002\uff09<\/p>\n<p>\u5e94\u7528\u7a0b\u5e8f\u6bcf\u6b21\u8981\u5206\u914d\u5185\u5b58\uff0c\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u63d0\u4f9b\u7cfb\u7edf\u8c03\u7528\uff0c\u53eb brk \u548c mmap\u3002\u8fd9\u4e9b\u7cfb\u7edf\u8c03\u7528\u7684\u6548\u7387\u4e0d\u9ad8\uff0c\u56e0\u4e3a\u6709\u5185\u6838\u6001\u5230\u7528\u6237\u6001\u7684\u5207\u6362\uff0c\u90a3\u4e48\u600e\u4e48\u529e\uff1f<\/p>\n<p>C\u7a0b\u5e8f\u6709\u4e00\u4e2aC\u5e93\uff0cLinux \u9ed8\u8ba4\u53eb Ptmalloc2\u3002 \u9ed8\u8ba4\u5206\u914d\u4e00\u4e2a\u5b57\u8282\u4f1a\u7ed9\u4f60\u9884\u5206\u914d 64MB \u5b57\u8282\uff0c\u5f53\u4f60\u5206\u914d\u7b2c\u4e8c\u4e2a\u5b57\u8282\u7684\u65f6\u5019\u8fd8\u4ece\u8fd9\u4e2a\u6c60\u5b50\u91cc\u9762\u627e\uff0c\u91ca\u653e\u540e\u4f1a\u56de\u5230\u8fd9\u4e2a\u5185\u5b58\u6c60\u3002\u8fd9\u4e2a\u6c60\u5b50\u6709\u5f88\u591a\u7684\u95ee\u9898\uff0c\u6bd4\u5982\u8bf4 Ptmalloc \u975e\u5e38\u901a\u7528\u7684\u5185\u5b58\u6c60\uff0c\u8003\u8651\u7684\u662f\u6548\u7387\u7279\u522b\u9ad8\uff0c\u6bd4\u5982\u8bf4A\u7ebf\u7a0b\u91ca\u653e\u7684\uff0cB\u7ebf\u7a0b\u8fd8\u80fd\u76f4\u63a5\u62ff\u6765\u7528\uff0c\u8fd9\u80af\u5b9a\u6709\u4e00\u4e2a\u5e76\u53d1\u95ee\u9898\uff0c\u80af\u5b9a\u8981\u52a0\u9501\uff0c\u4e00\u52a0\u9501\u6027\u80fd\u5c31\u4e0d\u9ad8\uff0c\u50cf tcmalloc\u548c Ptmalloc \u9ed8\u8ba4\u4e86\u8fd9\u4e2a\uff0c\u4ec0\u4e48\u4e5f\u4e0d\u6539\u3002<\/p>\n<p>\u800c\u8c37\u6b4c\u7684 TCMalloc \u5206\u4e3a\u5c0f\u5185\u5b58\u3001\u4e2d\u5185\u5b58\u548c\u5927\u5185\u5b58\uff0c\u5c0f\u4e8e256KB\u5b57\u8282\u7684\u5c31\u662f\u5c0f\u5185\u5b58\uff0c\u5c0f\u5185\u5b58\u4e0d\u8003\u8651\u5171\u4eab\uff0c\u6240\u4ee5\u4e0d\u7528\u52a0\u9501\uff0c\u901f\u5ea6\u5f88\u5feb\uff1b\u5bf9\u4e8e\u4e2d\u5185\u5b58\u548c\u5927\u5185\u5b58\u901f\u5ea6\u53cd\u800c\u4e0d\u5982 Ptmalloc\u3002\u5982\u679c\u6211\u4eec\u505a\u670d\u52a1\u5668\u7684\u5f00\u53d1\uff0c\u7279\u522b\u662f Nginx \u7b80\u5355\u7684\u670d\u52a1\u5668\u7684\u5f00\u53d1\uff0c\u5982\u679c\u662f\u505a\u52a8\u6001\u670d\u52a1\u5668\uff0c\u7ecf\u5e38\u4f1a\u5206\u914d\u51e0MB\u5185\u5b58\uff0c\u4f46\u662f\u5bf9\u4e8e\u53ea\u6709\u8d1f\u8f7d\u5747\u8861\u3001\u7b80\u5355 lua \u811a\u672c\u64cd\u4f5c\u60c5\u51b5\u4e0b\u6839\u672c\u4e0d\u53ef\u80fd\u5206\u914d\u5927\u5185\u5b58\uff0c\u6240\u4ee5 TCmalloc \u5c31\u975e\u5e38\u7684\u9002\u5408\u5b83\u3002<\/p>\n<p>\u8fd9\u91cc\u6211\u53ea\u662f\u4ecb\u7ecd\u4e86C\u5e93\u7684\u5185\u5b58\u6c60\uff0c\u5176\u5b9e\u4e0a\u9762\u8fd8\u6709\u5f88\u591a\u7684\u5185\u5b58\u6c60\uff0c\u6bd4\u5982\u8bf4 Nginx \u5bf9\u5171\u4eab\u5185\u5b58\u4e2d\u6709\u5185\u5b58\u6c60 slab\uff0c\u8fd9\u4e2a slab \u5728 openresty\uff0c\u662f\u590d\u7528\u7684\uff0c\u5bf9\u4e8e\u666e\u901a\u7684\u50a8\u5b58\u91cc\u4e5f\u6709\u4e00\u4e2a\u5185\u5b58\u6c60\uff0c\u8fd8\u6709\u8fde\u63a5\u5185\u5b58\u6c60\u548c\u8bf7\u6c42\u5185\u5b58\u6c60\u3002<\/p>\n<p>\u5982\u679c\u662f\u5176\u4ed6\u7684\u8bed\u8a00\uff0c\u6bd4\u5982\u8bf4 lua \u865a\u62df\u673a\uff0c\u5b83\u6709\u81ea\u5df1\u7684lua\uff0c\u8fd8\u6709\u81ea\u5df1\u7684\u5185\u5b58\u6c60\u3002Java \u6709 JVM \u5185\u5b58\u6c60\uff0cgolang \u4e5f\u6709\u81ea\u5df1\u7684\u5185\u5b58\u6c60\uff0c\u50cf golang \u662f\u57fa\u4e8e tcmalloc \u6539\u8fc7\u5783\u573e\u56de\u6536\u673a\u5236\u3002\u8fd9\u662f\u6211\u5e0c\u671b\u80fd\u591f\u5f15\u8d77\u5927\u5bb6\u6ce8\u610f\u7684\uff0c\u4e3b\u8981\u662f\u9760\u7ebf\u4e0b\u5927\u5bb6\u5b66\u4e60\u3002<\/p>\n<p><strong>\u78c1\u76d8<\/strong><\/p>\n<p>\u78c1\u76d8\uff0c\u6211\u60f3\u56f4\u7ed5\u7740 PageCache\u3002PageCache\uff0c\u4f20\u7edf\u7684\u673a\u68b0\u786c\u76d8\uff0c\u4f60\u60f3\u8ba9\u5b83\u5e76\u53d1\uff0c\u5b83\u5e76\u53d1\u4e0d\u4e86\uff0c\u5b83\u53ea\u8499\u5728\u90a3\u91cc\u8f6c\uff0c\u6240\u4ee5\u4f60\u8981\u901a\u8fc7\u8c03\u5ea6\u7b97\u6cd5\uff0c\u8ba9\u5b83\u5c3d\u91cf\u5f80\u4e00\u4e2a\u65b9\u5411\u8f6c\u3002\u8bfb\u7684\u8bdd\uff0c\u4f1a\u8003\u8651 PageCache \u4e0d\u505c\u7684\u7f13\u5b58\u547d\u4e2d\u3002<\/p>\n<p>\u6bd4\u5982\u8bf4\u96f6\u62f7\u8d1d\uff0c\u96f6\u62f7\u8d1d\u662f\u4e0d\u662f\u4e00\u76f4\u6709\u6548\u5462\uff1f\u6bd4\u5982\u505a\u89c6\u9891\u7684\u76f4\u64ad\u6216\u8005 CDN\uff0c\u8fd9\u4e2a\u6587\u4ef6\u5f88\u5927\uff0c\u518d\u6b21\u547d\u4e2d\u7684\u6982\u7387\u4e0d\u9ad8\uff0cPagecache \u53ca\u5176\u6709\u9650\uff0c\u5982\u679c\u6587\u4ef6\u8fd9\u4e48\u5927\uff0c\u56e0\u4e3a\u6709\u5f88\u591a\u5e76\u53d1\u7684\u7ebf\u8def\u6b63\u5728\u540c\u65f6\u83b7\u53d6\u4e0d\u540c\u7684\u6587\u4ef6\uff0c\u6240\u4ee5\u547d\u4e2d\u7684\u6982\u7387\u5f88\u4f4e\u3002<\/p>\n<p style=\"text-align: center\">\n<p>\u5982\u679c\u8fdb\u5230 PageCache \u4e2d\u4f1a\u600e\u6837\uff1f<\/p>\n<ul>\n<li>\u5f88\u96be\u518d\u6b21\u547d\u4e2d\uff0cPageCache \u4e5f\u7ed9\u5b83\u8fdb\u884c\u4e86\u964d\u4f4e\u6027\u80fd\u3002<\/li>\n<li>\u56e0\u4e3a PageCache \u662f least used\uff0c\u53ea\u8981\u4f60\u73b0\u5728\u8fdb\u6765\u4e00\u4e2a\u4e1c\u897f\uff0c\u4e00\u5b9a\u8981\u51fa\u53bb\uff0c\u51fa\u53bb\u7684\u4e1c\u897f\uff0c\u672c\u6765\u662f\u5f88\u6709\u673a\u4f1a\u88ab\u518d\u6b21\u8bbf\u95ee\u5230\u7684\u5c0f\u5757\u8d44\u6e90\u548c\u6587\u4ef6\uff0c\u6240\u4ee5\u5c31\u5931\u53bb\u4e86\u518d\u6b21\u547d\u4e2d\u7684\u673a\u4f1a\uff0c\u6240\u4ee5\u624d\u4f1a\u6709\u76f4\u63a5IO\u548c\u5f02\u6b65IO\uff0cLinux \u7684\u4f5c\u8005\u8ba4\u4e3a\u63a5\u53e3\u8bbe\u8ba1\u5f88\u7cdf\u7cd5\uff0c\u4f46\u662f\u8fd9\u4e2a\u4e1c\u897f\u662f\u5f88\u6709\u7528\u7684\uff0c\u5e76\u4e0d\u662f\u4e00\u70b9\u7528\u4e5f\u6ca1\u6709\u3002<\/li>\n<\/ul>\n<p style=\"text-align: center\">\n<p>\u5173\u4e8e\u78c1\u76d8\u9ad8\u901f\u7684\u7f13\u5b58\uff0c\u8fd8\u6709\u5f88\u591a\u53ef\u4ee5\u5206\u4eab\u7684\u3002<\/p>\n<p>\u6bd4\u5982\u8bf4SDD\uff0cSDD\u5728\u6211\u770b\u6765\u662f\u53e6\u5916\u4e00\u4e2a\u7269\u79cd\u3002\u5e73\u65f6\u5927\u5bb6\u90fd\u8ba4\u4e3a\u201cSDD \u6bd4\u673a\u68b0\u786c\u76d8\u7684 IOPS \u9ad8\uff0cLatency \u4f4e\uff0cThoughtput \u66f4\u9ad8\uff0c\u5373\u603b\u7684\u541e\u5410\u91cf\u66f4\u9ad8\u201d\u7edd\u5bf9\u4e0d\u662f\u7b80\u7b80\u5355\u5355\u8fd9\u4e48\u4e00\u70b9\u4e1c\u897f\u3002<\/p>\n<p><strong>\u6211\u4e3e\u4e2a\u4f8b\u5b50\uff1a\u7b2c\u4e00\uff0cSSD\u6709\u4e2a\u95ee\u9898\u53eb\u5199\u5165\u653e\u5927\u3002<\/strong><\/p>\n<p>\u5927\u5bb6\u90fd\u77e5\u9053 Kafka\uff0cKafka \u6027\u80fd\u4e3a\u4ec0\u4e48\u8fd9\u4e48\u597d\uff1f\u4e00\u4e2a\u7279\u70b9\u5c31\u662f\u524a\u5cf0\u586b\u8c37\uff0c\u5b83\u8981\u628a\u6570\u636e\u6301\u4e45\u5316\u3002\u65e2\u7136\u662f\u5199\u786c\u76d8\u6027\u80fd\u4e3a\u4ec0\u4e48\u80fd\u8fd9\u4e48\u597d\uff1f\u56e0\u4e3a\u5b83\u5145\u5206\u5229\u7528\u4e86\u78c1\u76d8\u7684\u65cb\u8f6c\u901f\u5ea6\uff0c\u6d88\u606f\u961f\u5217\u5148\u5929\u6027\u662f\u65f6\u5e8f\u961f\u5217\uff0c\u4e00\u5b9a\u4e0d\u505c\u7684\u5f80\u4e00\u4e2a\u6587\u4ef6\u540e\u9762\u8ffd\u52a0\uff0c\u6240\u4ee5\u78c1\u76d8\u5229\u7528\u7387\u975e\u5e38\u9ad8\uff0c\u53ea\u8981\u653e\u5f88\u591a\u5757\u673a\u68b0\u78c1\u76d8\uff0c\u6027\u80fd\u8fd8\u53ef\u4ee5\u7ee7\u7eed\u63d0\u5347\u3002<\/p>\n<p>\u5982\u679c\u6362\u4e86SSD\uff0c\u8fd8\u6709\u8fd9\u6837\u7684\u597d\u5904\u5417\uff1fSSD \u672c\u6765\u5c31\u662f\u5feb\u5f88\u591a\uff0c\u4f46\u518d\u91c7\u7528\u8fd9\u79cd\u65b9\u5f0f\u5c31\u6709\u95ee\u9898\uff0c\u56e0\u4e3a\u5b83\u6709\u5199\u5165\u653e\u5927\u95ee\u9898\uff0c\u4ec0\u4e48\u53eb\u5199\u5165\u653e\u5927\uff1f\u6bd4\u5982\u8bf4\u6211\u4eec\u672c\u6765\u662f\u5199\u65e5\u5fd7\u6587\u4ef6\uff0c\u90fd\u5f80\u540e\u9762\u8ffd\u52a0\u4e00\u4e9b\u5b57\u8282\uff0c\u4f46\u662f SSD \u4e0d\u884c\uff0cSSD\u6709\u4e00\u4e2a\u9875\u9762\uff0c\u662f\u5b83\u7684\u57fa\u672c\u5355\u4f4d\uff0c\u5b83\u662f\u6309\u9875\u9762\u6765\u7684\u3002<\/p>\n<p>\u6bd4\u5982\u8bf4\u73b0\u5728\u7684\u9875\u9762\u4e0a\u5df2\u7ecf\u6709\u4e86\u4e00\u4e2a\u5b57\u8282\uff0c\u73b0\u5728\u8fd8\u60f3\u5199\u7b2c\u4e8c\u4e2a\u5b57\u8282\uff0c\u5b83\u4f1a\u628a\u6574\u4e2a\u9875\u9762\u8bfb\u5230\u7f13\u5b58\u533a\u4e2d\uff0c\u7136\u540e\u7ed9\u5b83\u52a0\u8fdb\u53bb\uff0c\u6700\u540e\u518d\u5199\u5230\u4e00\u4e2a\u65b0\u7684\u6ca1\u6709\u4eba\u5199\u8fc7\u7684\u9875\u9762\uff0c\u6240\u4ee5\u6709\u5f88\u5927\u7684\u653e\u5927\u4f5c\u7528\u3002\u6bcf\u5199\u4e00\u4e2a\u5b57\u8282\uff0c\u53ef\u80fd\u7ed9\u6211\u5199\u4e86\u51e0K\uff0c\u5b83\u6700\u6015\u7684\u662f inplace \u8fd9\u79cd\u539f\u5730\u5199\u5165\uff0c\u90a3\u50cf Kafka \u518d\u91c7\u7528\u7684\u65b9\u5f0f\u4f1a\u6709\u95ee\u9898\u3002<\/p>\n<p><strong>\u7b2c\u4e8c\uff0c\u8017\u635f\u5e73\u8861\u3002<\/strong><\/p>\n<p>SSD\u7684\u5bff\u547d\u4e0d\u597d\uff0c\u4ec0\u4e48\u5bff\u547d\u77ed\u5462\uff1f\u56e0\u4e3a\u5b83\u4e0d\u80fd\u6e05\u9664\uff0c\u6bcf\u4e00\u4e2a\u5b58\u50a8\u5355\u5143\u6e05\u9664\u7684\u6b21\u6570\u662f\u6709\u9650\u5236\u7684\u3002\u5982\u679c\u4e00\u4e2a\u786c\u76d8\u6709\u4e00\u4e2a\u6570\u636e\u7279\u522b\u70ed\uff0c\u6bd4\u5982\u8bf4\u5c31\u662f\u653e\u64cd\u4f5c\u7cfb\u7edf\u7684\uff0c\u7ecf\u5e38\u8bfb\u5199\uff0c\u8bfb\u7740\u5c31\u574f\u4e86\uff0c\u8fd9\u4e2a\u662f\u5927\u5bb6\u53d7\u4e0d\u4e86\u7684\uff0c\u5176\u4ed6\u5730\u65b9\u90fd\u597d\u3002\u6240\u4ee5\u641e\u4e86\u4e00\u4e2aGC\uff0c\u4e0d\u505c\u7ed9\u4f60\u79fb\uff0c\u8fd9\u8fb9\u662f\u70ed\u6570\u636e\u7684\uff0c\u8fd9\u8fb9\u662f\u51b7\u6570\u636e\u7684\uff0c\u6211\u7ed9\u4f60\u79fb\u8fc7\u53bb\uff0c\u79fb\u8fc7\u53bb\u4e4b\u540e\u5927\u5bb6\u5c31\u5e73\u8861\uff0c\u8fd9\u5757\u78c1\u76d8\u5c31\u4e0d\u4f1a\u90a3\u4e48\u5feb\u574f\u3002<\/p>\n<p>\u4f46\u8fd9\u4e2a\u673a\u5236\u5c31\u6709\u95ee\u9898\uff0c\u7ed9\u5e94\u7528\u7a0b\u5e8f\u5e26\u6765\u4e86\u6311\u6218\u3002\u5982\u679c\u5e94\u7528\u7a0b\u5e8f\u6309\u7167\u4f20\u7edf\u7684\u65b9\u5f0f\u53bb\u5199\uff0c\u4e0d\u505c\u5927\u91cf\u7684\u5199\u5165\u64cd\u4f5c\u8fdb\u53bb\uff0c\u5c31\u4f1a\u4e0d\u505c\u89e6\u53d1\u673a\u5236\uff0c\u5f53\u4ed6\u7684GC\u8d76\u4e0a\u8fc7\u7c73\u7684\u65f6\u5019\uff0c\u53c8\u53d8\u6210\u963b\u585e\u4e86\uff0c\u6027\u80fd\u53c8\u4e0b\u53bb\u4e86\u3002<\/p>\n<p>\u5176\u5b9e SSD \u6709\u5f88\u591a\u548c HDD \u4e0d\u4e00\u6837\u7684\u5730\u65b9\uff0c\u6bd4\u5982\u8bf4\u673a\u68b0\u786c\u76d8\u7684\u65f6\u5019\uff0c\u7edd\u5bf9\u4e0d\u4f1a\u8003\u8651\u591a\u5f00\u51e0\u4e2a\u7ebf\u7a0b\uff0c\u8ba9\u901f\u5ea6\u53d8\u5feb\uff0c\u56e0\u4e3a\u786c\u76d8\u5c31\u5728\u90a3\u91cc\u8f6c\uff0c\u591a\u5f00\u7ebf\u7a0b\u6700\u7ec8\u8fd8\u662f\u6392\u961f\u7684\uff0c\u4f46\u662fSSD\u4e0d\u4e00\u6837\uff0c\u4f60\u591a\u5f00\u51e0\u4e2a\uff0c\u5b83\u5c31\u662f\u90a3\u4e48\u5feb\uff0c\u56e0\u4e3a\u5b83\u5148\u5929\u53ef\u4ee5\u505a\u5e76\u53d1\u3002<\/p>\n<p>\u6bd4\u5982\u8bf4 SSD \u505a\u968f\u673a\u8bfb\u5199\u4e5f\u505a\u5f97\u7279\u522b\u597d\uff0c\u6211\u4eec\u5728\u673a\u68b0\u786c\u76d8\u4e0a\u5c3d\u91cf\u51cf\u5c11\u6570\u636e\u8bfb\u5199\u7684\uff0c\u4f46\u5230SSD\u5c31\u53ef\u4ee5\u8bfb\u5199\u3002<\/p>\n<p style=\"text-align: center\">\n<p>\u518d\u56de\u5230\u9ad8\u5e76\u53d1\uff0c\u4e3a\u4ec0\u4e48\u9ad8\u5e76\u53d1\u8981\u4f7f\u7528\u534f\u7a0b\uff0c\u4e3a\u4ec0\u4e48\u6bd4\u591a\u7ebf\u7a0b\u8981\u5feb\u6548\u7387\u8981\u9ad8\uff1f\u5728\u6211\u770b\u6765\u6709\u4e24\u4e2a\u539f\u56e0\uff1a<\/p>\n<p>1\u3001\u6bcf\u4e00\u4e2a\u534f\u7a0b\u6d88\u8017\u7684\u5185\u5b58\u975e\u5e38\u4f4e\u3002\u6bcf\u4e00\u4e2a\u7ebf\u7a0b\u6709\u591a\u9ad8\u5417\uff1f\u7ed9\u4f60\u641e\u4e86\u4e00\u4e2a\u5806\u5185\u5b58\u6c60\uff0c\u4f60\u8bf4\u4e00\u4e2a\u5b57\u8282\u641e\u4e00\u4e2a\u5185\u5b58\u6c60\uff0c\u7ebf\u7a0b\u90fd\u6709\u6808\uff0c\u6808\u4ec0\u4e48\u65f6\u5019\u4f1a\u6ea2\u51fa\u5462\uff1f\u6808\u5230\u5e95\u6709\u591a\u5927\u5462\uff1f\u4e00\u822c\u662f2MB\u52308MB\uff0c\u8fd9\u4e48\u5927\u7684\u7ebf\u7a0b\uff0c\u53ef\u4ee5\u60f3\u8c61\u6709\u591a\u5c11\u7684\u5185\u5b58\uff1f<\/p>\n<p>\u5982\u679c\u51e0\u5341G\u7684\u5185\u5b58\u4e0a\u5e76\u53d110000\u4e2a\u7ebf\u7a0b\uff0c\u5185\u5b58\u90fd\u4e0d\u591f\uff0c\u5176\u4ed6\u4e1a\u52a1\u5c31\u505a\u4e0d\u4e86\u4e86\u3002<\/p>\n<p>\u6700\u5927\u7684\u95ee\u9898\u662f\u540c\u65f6\u5904\u7406\u4e00\u4e2a\u8bf7\u6c42\u6d88\u8017\u7684\u5185\u5b58\u4e0d\u80fd\u591a\uff0c\u800c\u534f\u7a0b\u5c31\u80fd\u505a\u5230\u3002\u57fa\u672c\u4e0a\u534f\u7a0b\u51e0KB\u5230\u5341\u51e0KB\u5c31\u53ef\u4ee5\u5904\u7406\u4e00\u4e2a\u8bf7\u6c42\u3002\u6240\u4ee5\u53ef\u4ee5\u8f7b\u677e\u901a\u8fc7\u5341\u51e0G\u7684\u5185\u5b58\u5e76\u53d1\u5230\u51e0\u4e07\u4e2a\u3001\u5341\u51e0\u4e07\u4e2a\u8bf7\u6c42\u3002<\/p>\n<p>2\u3001\u5207\u6362\u6210\u672c\u4f4e\u3002\u5728\u7ebf\u7a0b\u4e0a\u505a\u5207\u6362\u65f6\u6709\u4e00\u4e2a\u5185\u6838\u6001\u5230\u7528\u6237\u6001\u7684\u5207\u6362\uff0c\u800c\u4e14\u8981\u505a\u5927\u91cf\u7684\u62f7\u8d1d\u3002\u5728\u534f\u7a0b\u7684\u8bdd\uff0c\u56e0\u4e3a\u662f\u5168\u6808\u7528\u6237\u6001\uff0c\u5207\u6280\u80fd\u5668\uff0c\u6216\u8005\u662f\u4e0d\u5207\u6280\u80fd\u5668\uff0c\u76f4\u63a5\u8c03\u5ea6\u5230\u4ee3\u7801\u91cc\u9762\u5207\u4e00\u4e0b\u5c31\u53ef\u4ee5\u4e86\uff0c\u6240\u4ee5\u76f8\u5bf9\u6765\u8bf4\u6210\u672c\u4e5f\u662f\u5f88\u4f4e\u7684\u3002<\/p>\n<p style=\"text-align: center\">\n<p>\u6700\u540e\u518d\u603b\u7ed3\u4e00\u4e0b\uff0c\u5bf9\u4e8e CPU \u8fd9\u65b9\u9762\uff0c\u6709\u4e00\u4e2a\u7279\u522b\u6709\u6548\u7684\u5de5\u5177\u3002\u6709\u65f6\u5019\u8bf4\u4f18\u5316\u6027\u80fd\uff0c\u8981\u627e\u5230\u74f6\u9888\uff0c\u8d8a\u662f\u74f6\u9888\u7684\u5730\u65b9\u8fdb\u884c\u4f18\u5316\u624d\u6700\u6709\u4ef7\u503c\u3002\u600e\u4e48\u627e\u74f6\u9888\u5462\uff1f\u6211\u63a8\u8350\u706b\u7130\u56fe\u3002\u4f60\u8981\u81ea\u5df1\u53bb\u6253\u70b9\u548c\u5199\u65e5\u5fd7\u5f88\u5bb9\u6613\u9057\u6f0f\uff0c\u4f60\u4e0d\u7528\u88c5\u4efb\u4f55\u7684\u4e1c\u897f\uff0c\u53ea\u9700\u8981\u88c5\u4e00\u4e2a Linux perf+FlumeGraph \u4e24\u4e2a\u8f6f\u4ef6\u5c31\u53ef\u4ee5\u3002<\/p>\n<p>\u5b83\u5206\u4e86\u4e24\u79cd\uff0con CPU \u548c off CPU\u3002onCPU \u5b83\u662f\u4ee5\u6696\u8272\u8c03\u4e3a\u4e3b\uff0c\u770b\u6d88\u8017\u4e86\u591a\u5c11\u4e2aCPU\uff0c\u56e0\u4e3a\u628a\u6240\u6709\u7684\u51fd\u6570\u90fd\u8003\u8651\u5230\uff1b\u800coffCPU\u662f\u51b7\u8272\u8c03\uff0c\u770b\u6bcf\u4e00\u4e2a\u51fd\u6570\u8981\u8fdb\u7a0b\u6216\u8005\u662f\u7ebf\u7a0b\u8fdb\u5165 sleep \u7684\u65f6\u95f4\u6709\u591a\u957f\uff1f\u8fd9\u4e24\u4e2a\u56fe\u6709\u4e00\u4e2a\u597d\u5904\uff0c\u5b83\u662f\u4e00\u4e2aSVG\u7684\u77e2\u91cf\u56fe\uff0c\u6240\u4ee5\u53ef\u4ee5\u8ddf\u5404\u79cd\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\uff0c\u4e5f\u53ef\u4ee5\u70b9\u51fb\u653e\u5927\uff0c\u800c\u4e14\u5b83\u4f1a\u628a\u540c\u4e00\u4e2a\u8c03\u7528\u6808\u4e2d\u7684\u76f8\u540c\u51fd\u6570\u8fdb\u884c\u5408\u5e76\uff0c\u5f88\u5bb9\u6613\u6bd4\u51fa\u6765\u54ea\u4e00\u4e2a\u51fd\u6570\u6d88\u8017\u7684\u65f6\u95f4\u6700\u957f\u3002<\/p>\n<h2>\u4e8c\u3001\u7f51\u7edc\u6548\u7387\u4f18\u5316<\/h2>\n<p>\u7f51\u7edc\u6548\u7387\u4f18\u5316\uff0c\u4e3b\u8981\u662f\u7f16\u89e3\u7801\u548c\u6539\u8fdb\u4f20\u8f93\u65b9\u5f0f\u3002<\/p>\n<p>\u7f16\u89e3\u7801\u6709\u4e09\u90e8\u5206\uff1a<\/p>\n<p style=\"text-align: center\">\n<ol>\n<li>\u7cfb\u7edf\u5c42\u4f20\u8f93\u6548\u7387\u3002\u7cfb\u7edf\u5c42\u4e3b\u8981\u662fTCP\u534f\u8bae\uff0c\u5b83\u7684\u4f18\u5316\u5305\u62ec\u4e09\u6b21\u63e1\u624b\u5efa\u94fe\u4f18\u5316\uff0c\u56db\u6b21\u63e1\u624b\u5173\u95ed\u4f18\u5316\u3002\u4e3b\u8981\u6839\u636e\u4f60\u7684\u7f51\u7edc\u73af\u5883\uff0c\u4e22\u5305\u7387\u9ad8\u4e0d\u9ad8\uff0c\u65f6\u5ef6\u957f\u4e0d\u957f\uff1b\u5982\u679c\u4e22\u5305\u7387\u975e\u5e38\u597d\uff0c\u91cd\u8bd5\u7684\u6b21\u6570\u5f88\u591a\u90fd\u53ef\u4ee5\u8fdb\u884c\u8c03\u6574\u3002\u8fd8\u6709\u7f13\u51b2\u533a\u4f18\u5316\uff0c\u4ee5\u53ca\u62e5\u585e\u63a7\u5236\u3002<\/li>\n<li>\u5e94\u7528\u5c42\u7f16\u7801\u6548\u7387\u3002<\/li>\n<li>\u5e94\u7528\u5c42\u4f20\u8f93\u6548\u7387\u3002<\/li>\n<\/ol>\n<p>\u5e94\u7528\u5c42\u7684\u8bdd\uff0c\u4e3b\u8981\u770b HTTP \u534f\u8bae\u3002<\/p>\n<p style=\"text-align: center\">\n<p>1996\u5e74\u662fHTTP1.0\uff0c1999\u5e74\u662fHTTP1.1\uff0c\u6211\u4eec\u73b0\u5728\u4e3b\u8981\u4f7f\u7528\u7684\u662f1.0\u548c1.1\uff0c2015\u5e74\u662fHTTP2\uff0c\u4ed6\u4eec\u90fd\u662f\u8dd1\u5728TLS\u548cTCP\u4e0a\uff0c\u4e3a\u4ec0\u4e48\u5462\uff1f\u56e0\u4e3a\u80fd\u591f\u7b80\u5316\u5f00\u53d1\u6548\u7387\u3002<\/p>\n<p>TCP \u5b9e\u73b0\u4e86\u6709\u5e8f\u5b57\u8282\u6d41\uff0cTLS \u4e5f\u8981\u57fa\u4e8e\u6709\u5e8f\u5b57\u8282\u6d41\uff0c\u5982\u679c\u6ca1\u6709\u6709\u5e8f\u5b57\u8282\u6d41\uff0c\u73b0\u5728\u4e5f\u73a9\u4e0d\u8f6c\u3002\u6bd4\u5982\u5728 QUIC \u4e2d\u8981\u91cd\u65b0\u5b9e\u73b0\u8fd9\u70b9\u3002HTTP2\uff0c\u6709\u4e86\u6709\u5e8f\u5b57\u8282\u6d41\uff0c\u5f88\u591a\u95ee\u9898\u4e0d\u7528\u8003\u8651\uff0c\u4e0d\u7ba1\u6587\u4ef6\u6709\u591a\u5927\uff0c\u53ea\u8981\u6b63\u5e38\u4f20\u8f93\u5c31\u597d\u3002<\/p>\n<p>\u8fd9\u5c31\u5e26\u6765\u4e86\u4e00\u4e2a\u95ee\u9898\uff0c\u5728\u4e00\u4e2a\u6709\u5e8f\u7684\u5b57\u8282\u6d41\u4e0a\uff0c\u653e\u4e86\u4e00\u4e2a\u65e0\u5e8f\u7684\u4e1c\u897f\uff08HTTP \u662f\u591a\u5e76\u53d1\u7684\uff0c\u5e76\u53d1\u80af\u5b9a\u662f\u65e0\u5e8f\u7684\uff09\u3002\u65e0\u5e8f\u7684\u4e1c\u897f\u627f\u8f7d\u5728\u6709\u5e8f\u7684\u5b57\u8282\u6d41\u4e0a\uff0c\u5e26\u6765\u7684\u95ee\u9898\u5c31\u662f\u961f\u5934\u963b\u585e\u3002\u5b83\u6709\u591a\u4e2astream\uff0c\u53ea\u8981\u51fa\u73b0\u4e00\u4e2a stream\uff0cTCP \u5c31\u6709\u53ef\u80fd\u4e22\u5305\uff0c\u540e\u9762\u7684 stream \u90fd\u73a9\u4e0d\u8f6c\u4e86\uff0c\u6240\u4ee5\u53ea\u80fd\u901a\u8fc7 UDP \u6765\u89e3\u51b3\u3002<\/p>\n<p>UDP \u89e3\u51b3\u4ee5\u540e\uff0c\u51fa\u73b0\u4e86\u4e00\u4e2a QUIC \u5c42\uff0c\u8fd9\u4e2a QUIC \u5c42\u662f\u72ec\u7acb\u7684\u4e00\u5c42\uff0c\u628a TCP \u5c42\u7684\u5f88\u591a\u4e8b\uff08\u4e22\u5305\u3001\u91cd\u4f20\u3001\u62e5\u585e\u63a7\u5236\uff09\u90fd\u505a\u4e86\uff0cTLS \u4e5f\u9700\u91cd\u65b0\u5199\uff0c\u628a HTTP2 \u4e2d\u7684 stream \u4e5f\u5c01\u88c5\u4e5f\u653e\u5230\u4e86\u91cc\u9762\u3002<\/p>\n<p>HTTP3 \u5230\u5e95\u6709\u4ec0\u4e48\u597d\u5904\u5462\uff1f1.\u591a\u8def\u590d\u7528\uff1b2.\u8fde\u63a5\u8fc1\u79fb\uff1b3.QPACK\u7f16\u7801\uff1b4.\u4e22\u5305\u91cd\u4f20\u3002<\/p>\n<p style=\"text-align: center\">\n<p>\u6211\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u6bd4\u5982\u8bf4\u6293\u4e00\u4e2a HTTP3 \u7684\u5305\u5c31\u77e5\u9053\uff0c\u6293\u5305\u770b\u5b8c\u6700\u4e0a\u9762\u662f UDP Header\uff0cUDP Header \u5c31\u662f\u4e00\u4e2a4\u5143\u7ec4\uff1a\u6e90IP\u3001\u76ee\u7684IP\u3001\u6e90\u7aef\u53e3\u3001\u76ee\u7684\u7aef\u53e3\u3002\u63a5\u4e0b\u6765\u662f Packet Header\uff0cPacket Header \u4e2d\u6709\u4e00\u4e2a\u6574\u6570\uff0c\u53eb connection_id\uff0c\u4e3a\u4ec0\u4e48\u6709 connection_id\uff1f<\/p>\n<p>\u4ee5\u524d\u4e00\u4e2a\u8fde\u63a5\u662f\u5982\u4f55\u5b9a\u4e49\u7684\u5462\uff1f\u56db\u5143\u7ec4\uff08\u6e90IP\u3001\u76ee\u7684IP\u3001\u6e90\u7aef\u53e3\u3001\u76ee\u7684\u7aef\u53e3\uff09\uff0c\u53ea\u8981\u56db\u5143\u7ec4\u6539\u4e86\u5c31\u9700\u8981\u91cd\u8fde\u3002<\/p>\n<p>\u5728 IOT \u65f6\u4ee3\uff0c\u5404\u79cd\u9ad8\u901f\u79fb\u52a8\u7684\u8bbe\u5907\u4f1a\u7ecf\u5e38\u5207\u6362\uff0c\u6bd4\u5982\u7ecf\u5e38\u5207\u6362\u7684 5G \u57fa\u7ad9\uff0c\u6216\u662f\u5207\u5230\u4e00\u4e2a WIFI\uff0c\u8fd9\u65f6IP\u5730\u5740\u80af\u5b9a\u4f1a\u53d1\u751f\u53d8\u5316\uff0c\u9700\u8981\u91cd\u65b0\u5efa\u7acb\u8fde\u63a5\u3002\u91cd\u5efa\u8fde\u63a5\u7684\u6210\u672c\u592a\u9ad8\u4e86\uff0c\u600e\u4e48\u6837\u4e0d\u91cd\u65b0\u5efa\u7acb\u8fde\u63a5\u5462\uff1f\u4ece Packet Header \u4e2d\uff0c\u5b9a\u4e49\u4e86\u4e00\u4e2a connection_id \u7684\u6574\u6570\u3002<\/p>\n<p>\u53ea\u8981\u8fd9\u4e2a\u6574\u6570\u4e0d\u53d8\uff0c\u8fd9\u4e2a\u8fde\u63a5\u5c31\u53ef\u4ee5\u590d\u7528\uff0cTLS \u63e1\u624b\u4e5f\u4e0d\u7528\u505a\u4e86\u3002\u4e3a\u4ec0\u4e48\u53ef\u4ee5\u8fd9\u6837\u505a\u5462\uff1f\u5176\u5b9e\u5f88\u7b80\u5355\uff0c\u8fd9\u4e9b\u4e1c\u897f\u662f\u52a0\u5bc6\u5230 HTTP3\uff0c\u5982\u679c\u80fd\u591f\u89e3\u5bc6\u7684\u8bdd\uff0c\u5b89\u5168\u6027\u662f\u6ca1\u6709\u95ee\u9898\u7684\u3002Packet Header \u4e2d\uff0c\u8fd9\u5c31\u53eb\u8fde\u63a5\u8fc1\u79fb\uff0c\u5c31\u662f\u6211\u4eec\u8bf4\u7684 Connection Migration\uff0c\u8fde\u63a5\u8fc1\u79fb\uff0c\u8fd9\u662f HTTP3 \u7684\u7b2c\u4e00\u4e2a\u7528\u5904\u3002<\/p>\n<p>HTTP3 \u7684\u7b2c\u4e8c\u4e2a\u7528\u5904\u591a\u8def\u590d\u7528\u3002\u591a\u8def\u590d\u7528\u662f\u5230 QUIC Frame Header\uff0cPacket Header\u4e2d\u5b9a\u4e49\u4e86\u8fde\u63a5\u662f\u65e0\u5e8f\u7684\u5b57\u8282\u6d41\u8fde\u63a5\uff0c\u53ea\u7ba1\u4f60\u4e0d\u4e22\u5305\uff0c\u8981\u662f\u4e22\u5305\u4e86\uff0c\u6211\u4eec\u6709\u4e00\u4e2aID\uff0c\u80fd\u627e\u5230\u91cd\u53d1\u3002<\/p>\n<p>\u4f46\u987a\u5e8f\u4e71\u4e86\uff0c\u6211\u662f\u4e0d\u7ba1\u7684\uff0c\u7ba1\u987a\u5e8f\u4e71\u4e0d\u4e71\u662f\u5728 QUIC Frame Header\uff0c\u4ed6\u505a\u4e86\u4e00\u4e2a\u4e1c\u897f\uff0c\u4ed6\u91cd\u65b0\u5b9a\u4e86\u53eb QUIC stream \u7684\u6982\u5ff5\uff0c\u5c31\u50cf\u8ddf TCP \u8fde\u63a5\u662f\u4e00\u6837\u7684\uff0c\u8fd9\u91cc\u505a\u51fa\u6765\u4e00\u4e2aTCP \u8fde\u63a5\uff0c\u8ddf TCP \u8fde\u63a5\u7528\u8d77\u6765\u662f\u4e00\u6a21\u4e00\u6837\u7684\u3002<\/p>\n<p>\u5927\u5bb6\u90fd\u77e5\u9053 TCP \u4e09\u6b21\u63e1\u624b\u65f6\u5728\u540c\u6b65 Sequence\uff0cSYN \u53c2\u6570\u7684\u5168\u79f0\u5c31\u662f Synchronize Sequence Numbers\u3002\u5728\u540c\u6b65\u4e24\u8fb9\u7684\u5e8f\u5217\u53f7\uff0c\u56e0\u4e3a\u5728\u63a5\u4e0b\u6765\u7684\u6bcf\u53d1\u4e00\u4e2a\u5b57\u8282\uff0c\u5e8f\u5217\u53f7\u5c31\u4f1a\u52a01\uff0c\u5bf9\u65b9\u63a5\u53d7\u786e\u8ba4\u7684\u65f6\u5019\u4e5f\u662f\u8fd9\u4e48\u505a\u7684\u3002\u4ed6\u91cc\u9762\u4e5f\u6709\u4e00\u4e2a Sequence\uff0c\u6240\u6709\u7684\u90fd\u662f\u4e00\u6a21\u4e00\u6837\u7684\u3002<\/p>\n<p>\u57fa\u4e8e\u8fd9\u4e2a\u505a\u51fa\u6765\u7684\u6709\u5e8f\u5b57\u8282\u6d41\uff0c\u5c31\u5b8c\u6210\u5b8c\u6210\u89e3\u51b3\u4e86\u961f\u5934\u5835\u585e\u95ee\u9898\uff0c\u6240\u4ee5\u5b83\u7684\u591a\u8def\u590d\u7528\u662f\u771f\u6b63\u7684\u591a\u8def\u590d\u7528\u3002<\/p>\n<p>\u518d\u63a5\u4e0b\u6765\u5230\u4e86 HTTP3 Frame Header\uff0cQUIC Frame Header \u5df2\u7ecf\u63d0\u4f9b\u4e86\u4e00\u4e2a TCP \u8fde\u63a5\uff0c\u4f46\u662f HTTP \u662f\u6709\u81ea\u5df1\u5f88\u591a\u72ec\u7acb\u7684\u5e94\u7528\uff0c\u6bd4\u5982\u8bf4\u9664\u4e86 request\/response \u4ee5\u5916\uff0c\u8fd8\u6709\u670d\u52a1\u5668\u63a8\u9001\uff0c\u670d\u52a1\u5668\u63a8\u9001\u5c31\u662f\u4e00\u79cd\u65b0\u7684 Frame Header\uff0c\u5148\u6240\u4ee5\u524d\u9762\u53c8\u52a0\u4e86\u4e00\u5c42\u5934\u90e8\u53bb\u5b8c\u6210\u8fd9\u6837\u7684\u529f\u80fd\u3002<\/p>\n<p>\u8fd8\u5305\u62ec\u53e6\u5916\u4e00\u4e2a\u529f\u80fd\uff0cQPACK\uff0c\u5927\u5bb6\u77e5\u9053 HTTP2 \u5f53\u4e2d\u6709\u4e00\u4e2a HPACK\uff0c\u529f\u80fd\u5c31\u662f\u538b\u7f29\u5934\u90e8\u3002\u6700\u9ad8\u7684\u538b\u7f29\u5c31\u50cf\u6211\u4eec\u770b\u89c6\u9891\u7684\u65f6\u5019\uff0c\u6709\u5173\u952e\u5e27\u548c\u589e\u91cf\u5e27\uff0c\u5982\u679c\u7ecf\u8fc7\u4ec0\u4e48\u538b\u7f29\u7684\u89c6\u9891\uff0c\u538b\u7f29\u5b8c\u4ee5\u540e\u4f53\u79ef\u80fd\u51cf\u5c11\u51e0\u767e\u500d\uff0c\u770b\u8d77\u6765\u8fd8\u633a\u6e05\u6670\u7684\uff0c\u5b83\u5c31\u662f\u5173\u952e\u5e27\u548c\u589e\u91cf\u5e27\uff0c\u538b\u7f29\u6548\u7387\u7279\u522b\u9ad8\uff0cHPACK \u4e5f\u662f\u4e00\u6a21\u4e00\u6837\u7684\u3002\u5f53\u4f60\u5728\u4e00\u4e2a\u8fde\u63a5\u4e0a\u7b2c\u4e00\u6b21\u4f20\u8f93\u4e00\u4e2a HTTP header \u7684\u65f6\u5019\uff0c\u5176\u5b9e\u5c31\u662f\u4f60\u7684\u5173\u952e\u5e27\u3002<\/p>\n<p>\u540e\u9762\u505a\u589e\u91cf\u5e27\u7684\u65f6\u5019\uff0c\u53ea\u8981\u4f20\u4e00\u4e2a\u6570\u5b57\u5c31\u884c\u3002\u4f46\u662f\u8fd9\u79cd\u65b9\u5f0f\u4e5f\u6709\u4e00\u4e2a\u65f6\u5e8f\u6548\u5e94\uff0c\u8c01\u5148\u8c01\u540e\u3002\u6240\u4ee5\u5c31\u51fa\u73b0\u4e86 QPACK\uff0c\u8fd9\u662f\u57fa\u4e8e\u65e0\u5e8f\u7684\u8fde\u63a5\u53bb\u5b9e\u73b0\u4e00\u4e2a\u529f\u80fd\u3002<\/p>\n<p style=\"text-align: center\">\n<p>\u5355\u64ad\u548c\u591a\u64ad\uff0c\u4ec0\u4e48\u662f\u5355\u64ad\uff1f\u6bd4\u5982\u8bf4\u4e3b\u673a1\u540c\u65f6\u7ed9\u4e3b\u673a2\u30013\u30014\u53d1\uff0c\u5982\u679c\u662f\u5355\u64ad\u5c31\u5efa3\u4e2aTCP \u8fde\u63a5\uff0c\u5206\u522b\u662f\u7ea2\u84dd\u7eff\u3002\u5982\u679c\u662f\u7f51\u7edc\u5c42\u7684\u591a\u64ad\u5c31\u662f\u8fd9\u4e48\u53d1\uff0c\u6bd4\u5982\u8bf4\u4e3b\u673a1\u53d1\u4e86\u4ee5\u540e\uff0c\u8def\u7531\u5668 A \u628a\u8fd9\u4e2a\u62a5\u6587\u590d\u5236\u4e86\u4e00\u4efd\uff0c\u4e00\u4efd\u7ed9\u8def\u7531\u5668B\uff0c\u4e00\u4efd\u7ed9\u4e3b\u673a2\uff0c\u5230\u8def\u7531\u5668B\u4ee5\u540e\uff0c\u53c8\u590d\u5236\u4e86\u4e24\u4efd\uff0c\u4e00\u4e2a\u7ed9\u4e3b\u673a3\uff0c\u4e00\u4e2a\u7ed9\u4e3b\u673a4\uff0c\u6240\u4ee5\u5b83\u7684\u7f51\u7edc\u6548\u7387\u5e94\u7279\u522b\u9ad8\u3002<\/p>\n<p>\u4f46\u662f\u5b83\u6ca1\u6709\u529e\u6cd5\u8de8\u7f51\u7edc\uff0c\u4e00\u662f\u5b89\u5168\u95ee\u9898\uff0c\u5f88\u5bb9\u6613\u9020\u6210\u7f51\u7edc\u98ce\u66b4\uff1b\u4e8c\u662f\u8def\u7531\u5668A\u548c\u8def\u7531\u5668B\u4e0d\u662f\u4e00\u4e2a\u5382\u5bb6\u7684\uff0c\u5f88\u96be\u529e\u3002\u6240\u4ee5\uff0c\u53ea\u5728\u5c40\u57df\u7f51\u5185\u4f1a\u6709\u7f51\u7edc\u5c42\u591a\u64ad\uff08 ARP \u534f\u8bae\u7b49\uff09\u3002<\/p>\n<p>\u6240\u4ee5\u6211\u4eec\u6700\u597d\u7528\u7684\u662f\u5e94\u7528\u5c42\u7684\u591a\u64ad\uff0c\u4e3b\u673a1\u8981\u7ed92\u30013\u30014\u53d1\u7684\u65f6\u5019\u662f\u8fd9\u6837\u53d1\u7684\uff0c\u4e3b\u673a1\u53ef\u80fd\u6210\u4e3a\u4e00\u4e2a\u4e2d\u5fc3\u5316\u7684\u8282\u70b9\u53bb\u62c9\u4e86\uff0c\u8bf4\u5148\u7ed93\u53d1\uff0c3\u4e3b\u52a8\u53bb\u62c9\u4e5f\u53ef\u4ee5\uff0c\u62c9\u5b8c\u4ee5\u540e\uff0c3\u518d\u4ece\u4e2d\u5fc3\u670d\u52a1\u5668\u91cc\u9762\u62c9\uff0c\u6bd4\u5982\u8bf44\u6ca1\u6709\uff0c3\u7684\u5c42\u9762\u5c31\u62c9\u7ed9\u4ed6\uff0c\u8fd9\u91cc\u7684\u7528\u5904\u5f88\u5927\u3002<\/p>\n<p>\u5728\u5f88\u5927\u7684\u96c6\u7fa4\u5185\u8981\u53d1\u5e03\u4e00\u4e2a\u51e0\u767e\u5146\u7684\u65b0\u7248\u672c\uff0c\u8fd9\u65f6\u5019\u5982\u679c\u5355\u673a\u5411\u5927\u5bb6\u63a8\uff0c\u673a\u5668\u5c31\u6253\u7206\u4e86\uff0c\u5373\u4f7f\u752810G\u6216\u8005\u662f40G\u7684\u5916\u7f6e\u7f51\u5361\uff0c\u4f60\u7684\u4e0b\u9650\u5e26\u5bbd\u4e5f\u5c31\u51e0\u4e2aG\uff0c\u6839\u672c\u6297\u4e0d\u4f4f\u6210\u5343\u4e0a\u4e07\u540c\u65f6\u62c9\u4f60\u7684\u670d\u52a1\u5668\u3002\u6bd4\u5982\u8bf4\u963f\u91cc\u5f00\u6e90\u7684\u873b\u8713\uff08Dragonfly\uff09\u5c31\u5f88\u597d\u7528\uff0c\u4ed6\u53ea\u662f\u7528\u8fd9\u4e2a\u7406\u5ff5\uff0c\u600e\u4e48\u5b9e\u73b0\u5c31\u592a\u5bb9\u6613\u4e86\uff0c\u4ec0\u4e48\u534f\u8bae\u90fd\u80fd\u5b9e\u73b0\uff0c\u7528 HTTP \u534f\u8bae\u5c31\u597d\u4e86\uff0c\u6574\u4e2a\u5b9e\u8df5\u6210\u672c\u90fd\u4f1a\u4f4e\u5f88\u591a\u3002<\/p>\n<p style=\"text-align: center\">\n<p>\u518d\u6bd4\u5982\u8bf4 GossIP \u534f\u8bae\uff0c\u5b83\u5176\u5b9e\u4e5f\u662f\u4e00\u4e2a\u4f20\u67d3\u75c5\u534f\u8bae\uff0c\u5728 Redis \u96c6\u7fa4\u4e2d\u7ba1\u7406\u8282\u70b9\u90fd\u662f\u4f7f\u7528GossIP \u7684\u8fd9\u4e2a\u534f\u8bae\u3002<\/p>\n<h2>\u4e09\u3001\u964d\u4f4e\u8bf7\u6c42\u5ef6\u65f6<\/h2>\n<p>\u964d\u4f4e\u8bf7\u6c42\u65f6\u5ef6\uff0c\u63d0\u5347\u7528\u6237\u4f53\u9a8c\u3002\u6211\u5206\u4e3a4\u90e8\u5206\uff1a<\/p>\n<p style=\"text-align: center\">\n<ul>\n<li>\u7f13\u5b58<\/li>\n<li>\u5f02\u6b65\u5316<\/li>\n<li>MapReduce<\/li>\n<li>\u6d41\u5f0f\u8ba1\u7b97<\/li>\n<\/ul>\n<p style=\"text-align: center\">\n<p>\u9664\u4e86\u521a\u624d\u8bf4\u7684\u8bfb\u52a0\u8f7d\u7f13\u5b58\uff0c\u8fd8\u6709\u5199\u7f13\u5b58\uff0c\u6211\u4eec\u77e5\u9053\u6709CAP\u5b9a\u7406\uff0c\u7f13\u5b58\u4e00\u5b9a\u6709P\uff0c\u56e0\u4e3a\u6570\u636e\u6709\u5197\u4f59\uff0c\u5728\u4e24\u53f0\u673a\u5668\u4e0a\u90fd\u6709\u7f13\u5b58\uff0c\u4f46\u662f\u5173\u6ce8\u4e8e\u4e00\u81f4\u6027\u7684\u65f6\u5019\u5c31\u662f\u4e00\u4e2awrite through \u65b9\u5f0f\u7684\u7684\u7f13\u5b58\u3002AP \u53ef\u80fd\u5173\u6ce8\u7684\u662f write back \u7684\u7f13\u5b58\uff0c\u8fd9\u6837\u5355\u4e2a\u8bf7\u6c42\u7684\u4f7f\u7528\u91cf\u4f1a\u66f4\u9ad8\u3002<\/p>\n<p>BASE \u7406\u8bba\u5bf9\u7f13\u5b58\u4e5f\u6709\u5f88\u591a\u7684\u7528\u6cd5\uff0c\u6bd4\u5982 Nginx \u6216 Openresty\uff0c\u540e\u7aef\u6302\u6389\u4e86\uff0c\u6bcf\u6b21\u8bbf\u95ee\u90fd\u7ed9\u8fd4\u56de 502 \u8bf7\u6c42\uff0c\u4f60\u52a0\u4e00\u4e2a\u4e1c\u897f\u540e\u914d HTTP 502\uff0c\u5b83\u4f1a\u628a\u672c\u6765\u540e\u671f\u7684\u7f13\u5b58\u76f4\u63a5\u8fd4\u56de\u7ed9\u5ba2\u6237\uff0c\u6240\u4ee5\u53ef\u7528\u6027\u4e5f\u5c31\u63d0\u5347\u4e86\uff0c\u76f8\u5f53\u4e8e\u5bb9\u707e\u4e86\uff0c\u63d0\u4f9b\u4e86\u57fa\u672c\u53ef\u7528\u6027\u3002<\/p>\n<p style=\"text-align: center\">\n<p>MapReduce \u8bb2\u4e86\u5f88\u591a\uff0c\u5206\u4e3a3\u6b65\uff1a\u6570\u636e\u5206\u53d1\u3001\u6bcf\u4e2a\u8282\u70b9\u8fdb\u884c Map \u51fd\u6570\u8ba1\u7b97\u3001\u8f93\u51fa\u4ee5\u540e\u5408\u5e76\u3002MapReduce \u6211\u4eec\u5f88\u591a\u662f\u5728 SQL \u6765\u505a\uff0c\u56e0\u4e3a\u4f60\u7528 SQL \u7684 Group by \u7684\u805a\u5408\u8ba1\u7b97\uff0c\u5148\u5929\u6027\u7684\u8ddf\u5206\u53d1\u548c\u89c4\u907f\u80fd\u591f\u5bf9\u5f97\u8d77\uff0c\u65e0\u8bba\u662f\u6c42\u6807\u51c6\u5dee\u6216\u8005\u662f\u5e73\u5747\u503c\uff0c\u4e5f\u5f88\u5bb9\u6613\u53bb\u505a\u5e76\u884c\u7684\u8ba1\u7b97\uff0c\u8fd9\u662f\u53ef\u4ee5\u505a\u5230\u7684\u3002\u5f53\u7136\u5982\u679c\u6709\u524d\u540e\u4f9d\u8d56\u5173\u7cfb\u90a3\u662f\u6ca1\u6709\u529e\u6cd5\u505a\u7684\u3002<\/p>\n<p>MapReduce \u8fd8\u6709\u4e00\u4e2a\u7279\u70b9\uff0c\u5b83\u8ddf\u6570\u636e\u6e90\u5f3a\u76f8\u5173\uff0c\u6240\u4ee5\u57fa\u672c\u4e0a Java \u751f\u6001\u5728\u8fd9\u5757\u4e0a\u662f\u65e0\u654c\u7684\u3002\u539f\u56e0\u662f\uff0c\u5927\u5bb6\u7684\u6570\u636e\u90fd\u653e\u5728\u4e2d\uff0c\u6240\u4ee5\u6570\u636e\u662f\u4e92\u8054\u7f51\u516c\u53f8\u7684\u6838\u5fc3\u8d44\u4ea7\u2014\u2014\u6570\u636e\u90fd\u5728\u8fd9\u91cc\uff0c\u5176\u4ed6\u6846\u67b6\u5199\u5f97\u518d\u597d\u4e5f\u6ca1\u6709\u7528\u3002<\/p>\n<p style=\"text-align: center\">\n<p>\u6d41\u5f0f\u8ba1\u7b97\u548c MapReduce \u6709\u4e00\u4e2a\u5f88\u5927\u7684\u5dee\u522b\uff0c\u5b83\u6709\u65f6\u95f4\u7a97\u53e3\uff0c\u4e0d\u7ba1\u4f60\u7528\u6280\u672f\u7684\u7a97\u53e3\uff0c\u8fd8\u662f\u7528\u65f6\u95f4\u7a97\u53e3\uff0c\u90fd\u6709\u65f6\u5e8f\u6027\uff0c\u4f46\u662f\u7f51\u7edc\u62a5\u662f\u6ca1\u6709\u65f6\u5e8f\u6027\u7684\uff0c\u662f\u4e71\u5e8f\u7684\u3002\u6240\u4ee5\u5bf9\u7a97\u53e3\u7684\u5212\u5206\u662f\u6bd4\u8f83\u9ebb\u70e6\u7684\u3002\u6240\u4ee5\u6211\u4eec\u4f1a\u6709\u4e00\u4e2aloadmark\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u7f13\u89e3\u3002\u4e8c\u662f\u4e1a\u52a1\u662f\u5f3a\u76f8\u5173\u7684\uff0c\u6709\u65f6\u5019\u7a97\u53e3\u662f\u56fa\u5b9a\u7684\u65f6\u95f4\uff0c\u5927\u90e8\u5206\u7684\u65f6\u5019\u53ef\u80fd\u662f\u7528\u6237\u767b\u9646\u7684\u65f6\u5019\uff0c\u5b83\u662f\u8ddf Session \u5f3a\u76f8\u5173\u7684\u60c5\u51b5\u3002<\/p>\n<h2>\u56db\u3001\u63d0\u5347\u7cfb\u7edf\u5e76\u53d1<\/h2>\n<p>\u63d0\u5347\u7cfb\u7edf\u7684\u5e76\u53d1\uff0c\u600e\u4e48\u6837\u9ad8\u6548\u7684\u62d3\u5c55\u7cfb\u7edf\uff1f<\/p>\n<p style=\"text-align: center\">\n<p>\u8fd9\u91cc\u8bf4\u4e00\u4e0b AKF \u6269\u5c55\u7acb\u65b9\u4f53\uff0c\u6211\u89c9\u5f97\u8fd9\u4e2a\u4e1c\u897f\u7279\u522b\u7684\u597d\u7528\uff0c\u6240\u4ee5\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u4e00\u4e0b\u3002<\/p>\n<p>\u6bd4\u5982\u8bf4\u5728 Nginx \u4e0a\u914d\u4e86\u5f88\u591a\u7684\u4e0a\u6e38\uff0c\u4e0a\u6e38\u9ed8\u8ba4\u4f7f\u7528\u7684\u662f RoundRobin\uff0c\u4e0d\u7ba1\u4f60\u7684\u4e0a\u6e38\u67098\u683816G\u8fd8\u662f4\u68388G\u7684\uff0c\u4f60\u90fd\u4f1a\u914d\u6743\u91cd\uff0c\u914d\u6743\u91cd\u4f3c\u4e4e\u5b83\u4fe9\u4e0d\u4e00\u6837\uff0c\u4f46\u662f\u4efb\u4f55\u4e00\u4e2a\u8bf7\u6c42\u8fd9\u4e24\u53f0\u90fd\u80fd\u591f\u5904\u7406\u3002\u6240\u4ee5\u5b83\u5176\u5b9e\u662f\u590d\u5236\u8fc7\u6765\u7684\uff0c\u7528\u6700\u5c0f\u8fde\u63a5\u6570\uff0c\u5b83\u5173\u6ce8\u7684\u70b9\u662f\u4e0a\u6e38\u670d\u52a1\u5668\u7684\u8d1f\u8f7d\u3002<\/p>\n<p>\u8fd9\u662fX\u8f74\uff0cX\u8f74\u7684\u6210\u672c\u7279\u522b\u4f4e\uff0c\u52a0\u673a\u5668\u5c31\u53ef\u4ee5\u3002\u4f46\u662f\u5230\u4e86Y\u8f74\u548cZ\u8f74\u5c31\u4e0d\u4e00\u6837\uff0c\u4ed6\u4eec\u5f00\u59cb\u662f\u57fa\u4e8e\u8bf7\u6765\u3002\u6bd4\u5982\u8bf4 MySQL \u505a\u8bfb\u5199\u5206\u79bb\uff0c\u6211\u770b\u5230\u4e86\u4e00\u4e2a select \u7684\u8bed\u53e5\u548c update \u7684\u8bed\u53e5\uff0c\u5982\u679c\u662f select \u7684\u8bed\u53e5\uff0c\u6211\u5c31\u968f\u4fbf\u627e\u4e00\u4e2a slave\uff0c\u627e\u4e00\u4e2a\u5907\u5e93\u53bb\u8bbf\u95ee\uff0c\u5b83\u53c8\u56de\u5230X\u8f74\u4e86\u3002<\/p>\n<p>\u5982\u679c\u662f\u4e00\u4e2a update\uff0c\u6211\u53ef\u80fd\u5c31\u8981\u8fdb\u5165\u4e3b\u5e93\uff0c\u8fd9\u5c31\u662f\u8bfb\u5199\u5206\u79bb\u3002\u8fd8\u6709\u50cf API Gateway \u4e5f\u662f\u7ecf\u5e38\u8fd9\u6837\u7684\uff0c\u505a\u4ee3\u7801\u91cd\u6784\u4ee5\u540e\uff0c\u5e0c\u671b\u628a\u7528\u6237\u7c7b\u7684\u3001\u65e5\u5fd7\u7c7b\u7684\u5206\u5230\u4e0d\u540c\u7684\u96c6\u7fa4\u53bb\u5904\u7406\uff0c\u8fd9\u65f6\u5019\u90fd\u662f\u57fa\u4e8eY\u8f74\uff0cY\u8f74\u7684\u6210\u672c\u662f\u975e\u5e38\u9ad8\u7684\u3002<\/p>\n<p>Z\u8f74\u5c31\u662f\u5206\u5e93\u5206\u8868\uff0c\u57fa\u672c\u4e0a\u662f\u57fa\u4e8e\u54c8\u5e0c\uff0c\u7528\u6237A\u7684\u6570\u636e\u53ef\u80fd\u53ea\u80fd\u5230\u670d\u52a1\u56681\uff0c\u7528\u6237B\u7684\u6570\u636e\u53ef\u80fd\u5230\u670d\u52a1\u56682\u3002Z\u8f74\u7684\u6210\u672c\u4e0d\u597d\u8bf4\uff0c\u6bd4\u5982\u8bf4\u54c8\u5e0c\u7b97\u6cd5\uff0c\u4e3a\u4ec0\u4e48\u8bf4\u4e00\u81f4\u6027\u54c8\u5e0c\u5462\uff1f\u56e0\u4e3a\u4f60\u505a\u8fd9\u79cd\u57fa\u4e8e\u54c8\u5e0c\u7684\u8d1f\u8f7d\u5747\u8861\u6709\u5f88\u5927\u7684\u95ee\u9898\uff0c\u8bf7\u6c42\u7684\u96c6\u5408\u662f\u8fd1\u4e4e\u65e0\u9650\u7684\u96c6\u5408\uff0c\u4f46\u662f\u4e0a\u6e38\u670d\u52a1\u5668\u7684\u6620\u5c04\u96c6\u5408\u662f\u975e\u5e38\u6709\u9650\u7684\uff0c\u6709\u591a\u5c11\u7684\u670d\u52a1\u5668\uff0c\u4f60\u6709\u591a\u5c11\u4e2a\u9009\u62e9\uff0c\u5c31\u53ea\u80fd\u6620\u5c04\u5230\u8fd9\u6837\u7684\u96c6\u7fa4\u3002<\/p>\n<p>\u4ece\u5927\u96c6\u7fa4\u6620\u5c04\u5230\u5c0f\u7684\u96c6\u7fa4\uff0c\u65e0\u8bba\u524d\u9762\u7ecf\u8fc7\u591a\u5c11\u7684\u7b97\u6cd5\uff0c\u6700\u540e\u80af\u5b9a\u5f97\u6709\u6c42\u4f59\u7684\u64cd\u4f5c\uff0c\u6ca1\u6709\u6c42\u4f59\u7684\u8bdd\uff0c\u6ca1\u6709\u628a\u5b83\u5f52\u7eb3\u5230\u8fd9\u4e48\u5c0f\u7684\u96c6\u5408\u5185\u3002\u6c42\u4f59\u7684\u8bdd\uff0c\u5c31\u6709\u4e00\u4e2a\u95ee\u9898\uff0c\u4f59\u6570\u4e0d\u80fd\u53d8\uff0c\u56e0\u4e3a\u4f60\u7684\u4e0a\u6e38\u673a\u5668\u4e00\u65e6\u51fa\u73b0\u5b95\u673a\u6216\u8005\u662f\u589e\u52a0\u7684\u65f6\u5019\uff0c\u4f59\u6570\u53d8\u4e86\uff0c\u6574\u4e2a\u54c8\u5e0c\u51fd\u6570\u5c31\u53d8\uff0c\u53ea\u8981\u8fd9\u4e2a\u51fd\u6570\u4e00\u53d8\uff0c\u90a3\u6574\u4e2aZ\u8f74\u5c31\u4f1a\u53d1\u751f\u5f88\u5927\u5e45\u5ea6\u7684\u53d8\u5316\u3002<\/p>\n<p style=\"text-align: center\">\n<p>\u6211\u4eec\u4f1a\u4f7f\u7528\u4e00\u6b21\u6027\u54c8\u5e0c\uff0c\u5b83\u8ddf\u54c8\u5e0c\u51fd\u6570\u8fd8\u4e0d\u4e00\u6837\uff0c\u54c8\u5e0c\u51fd\u6570\u5176\u5b9e\u662fO1\u590d\u6742\u5ea6\u7684\uff0c\u4f46\u662f\u4e00\u81f4\u6027\u54c8\u5e0c\uff0c\u5b83\u4e0d\u662fO1\u590d\u6742\u5ea6\uff0c\u5b83\u4f1a\u53d8\u6210logM\uff0c\u5b83\u4f1a\u628a\u4e00\u4e2a\u8bf7\u6c42\u7684\u5173\u952e\u5b57\u7684\u4fe1\u606f\uff0c\u6620\u5c04\u4e3a\u54c8\u5e0c\u8282\u70b9\uff0c\u54c8\u5e0c\u662f32\u4f4d\u7684\u6574\u578b\uff0c32\u4f4d\u6574\u578b\u6784\u6210\u4e860~42\u4ebf\uff0c\u523042\u4ebf\u4ee5\u540e\u4e5f\u4f1a\u5f62\u6210\u4e00\u4e2a\u73af\uff0c\u53c8\u5230\u4e860\uff0c\u5b83\u901a\u8fc7\u8fd9\u6837\u7684\u6709\u5e8f\u7684\u5207\u5206\uff0c\u5728\u6b63\u5e38\u4f7f\u7528\u7684\u65f6\u5019\uff0c\u662f\u662f\u901a\u8fc7\u4e8c\u5206\u6cd5\u6765\u67e5\u627e\u3002<\/p>\n<p>\u4e00\u81f4\u6027\u54c8\u5e0c\u6b63\u5e38\u4f7f\u7528\u8fd8\u662f\u6709\u95ee\u9898\uff0c\u6211\u4eec\u4e00\u822c\u4f1a\u4f7f\u7528\u865a\u62df\u8282\u70b9\u5c42\u3002\u4e3a\u4ec0\u4e48\u8981\u4f7f\u7528\u865a\u62df\u8282\u70b9\u5c42\uff1f\u6211\u4eec\u8981\u907f\u514d\u96ea\u5d29\u6548\u679c\uff0c\u5982\u679c\u4e0a\u6e38\u670d\u52a1\u5668\u6302\u4e86\uff0c\u53ea\u4f1a\u5f71\u54cd\u5468\u8fb9\u7684\u8282\u70b9\uff0c\u5982\u679c\u5468\u8fb9\u7684\u8282\u70b9\u5df2\u7ecf\u8fbe\u523080%\u7684\u8d1f\u8f7d\uff0c\u8fd9\u53f0\u673a\u5668\u6240\u6709\u7684\u6d41\u91cf\u8fc7\u53bb\uff0c\u5b83\u4e5f\u8ddf\u7740\u6302\u4e86\uff0c\u5b83\u6302\u4e86\u4ee5\u540e\uff0c\u4e0b\u6e38\u4e5f\u6302\u4e86\uff0c\u5c31\u5168\u90e8\u90fd\u6302\u4e86\u3002<\/p>\n<p>\u6211\u4eec\u5e0c\u671b\u7684\u662fA\u8282\u70b9\u6302\u4e86\u4ee5\u540e\uff0c\u80fd\u8ba9\u6240\u6709\u7684\u8282\u70b9\u5e73\u5206\u6d41\u91cf\uff0c\u8fd9\u662f\u6700\u597d\u7684\uff0c\u5176\u5b9e\u4e8c\u6b21\u54c8\u5e0c\u5c31\u53ef\u4ee5\u3002\u6240\u8c13\u7684\u865a\u62df\u8282\u70b9\u5c42\u542c\u8d77\u6765\u5f88\u9ad8\u5927\u4e0a\uff0c\u5176\u5b9e\u5c31\u662f\u4e8c\u6b21\u54c8\u5e0c\u3002\u7b2c\u4e00\u6b21\u54c8\u5e0c\u5f62\u6210\u4e00\u4e2a\u73af\uff0c\u7b2c\u4e8c\u6b21\u54c8\u5e0c\u628a\u8fd9\u4e2a\u73af\u518d\u505a\u4e00\u4e2a\u54c8\u5e0c\uff0c\u57fa\u672c\u4e0a\u662f\u4e24\u5c42\u3002<\/p>\n<p>\u4e00\u822c\u6765\u8bf4\uff0c\u6211\u4eec\u6bcf\u4e00\u5c42\u662f100\u5230200\uff0c\u6709\u4e86\u8fd9\u6837\u7684\u4e1c\u897f\uff0c\u6211\u4eec\u907f\u514d\u96ea\u5d29\uff0c\u8fd8\u6709\u4e00\u4e2a\u597d\u5904\u662f\u5206\u5e03\u7684\u5747\u5300\u6027\u3002<\/p>\n<p>\u65e0\u8bba\u91c7\u7528\u4ec0\u4e48\u6837\u7684\u51fd\u6570\uff0c\u505a\u5b8c\u4ee5\u540e\uff0c\u548c\u4f60\u672c\u8eab\u6570\u636e\u8bf7\u6c42\u7684\u5206\u5e03\u4e0d\u4e00\u81f4\uff0c\u5f88\u591a\u7684\u6570\u636e\u90fd\u5f88\u5927\u8fd9\u65f6\u5019\u600e\u4e48\u89e3\u51b3\u5462\uff1f\u4e8c\u6b21\u54c8\u5e0c\u80fd\u591f\u4f7f\u5f97\u5206\u5e03\u66f4\u5747\u8861\u3002<\/p>\n<p>\u6700\u540e\u518d\u8bf4\u6301\u4e45\u5316\uff0c\u4ee5\u524d\u505a\u6301\u4e45\u5316\u6570\u636e\u7684\u65f6\u5019\uff0c\u5c31\u4e24\u62db\uff0c\u6bd4\u5982\u8bf4\u4e00\u4e2a\u6570\u636e\u6709\u5f88\u591a\u4efd\u5197\u4f59\uff0c\u5c31\u4f1a\u60f3\u5230\u4e24\u62db\uff0c\u6bcf\u6b21\u5199\u7684\u65f6\u5019\uff0c\u628a\u4e24\u53f0\u90fd\u5199\u4e00\u904d\uff0c\u6211\u5199\u901f\u5ea6\u7684\u6027\u80fd\u5c31\u5f88\u5dee\u3002\u6211\u5199\u7684\u65f6\u5019\u968f\u4fbf\u5199\u4e00\u4e2a\uff0c\u7528\u5f02\u6b65\u7684\u65b9\u5f0f\u540c\u6b65\u7ed9\u5176\u4ed6\u7684\u673a\u5668\uff0c\u4e00\u81f4\u6027\u6bd4\u8f83\u5dee\uff0c\u53ef\u80fd\u4f1a\u4e22\u6570\u636e\uff0c\u4f46\u662f\u6027\u80fd\u4f1a\u6bd4\u8f83\u597d\u3002\u5230\u4e86\u4e9a\u9a6c\u900a\uff0c\u96f6\u51e0\u5e74\u7684\u65f6\u5019\u51fa\u4e86\u4e00\u4e2a Quorum \u8bba\u6587\uff0c\u8bf4\u4e86\u8fd9\u4e2a NWR \u7b97\u6cd5\uff0c\u6570\u636e\u5197\u4f59\u4efd\u6570\u662fN\uff0cW\u662f\u5199\u8282\u70b9\u6570\uff0cR\u662f\u8bfb\u8282\u70b9\u6570\uff0cN\u662f\u5197\u4f59\u8282\u70b9\u6570\uff0c\u6240\u8c13\u7684\u9ad8\u53ef\u7528 W+R&gt;N \u5c31\u80fd\u5b9e\u73b0\u3002<\/p>\n<p style=\"text-align: center\">\n<p>W+R\u5927\u4e8eN\uff0c\u6bd4\u5982\u8bf4\u6570\u636e\u67093\u4e2a\u8282\u70b9\uff0cR1R2R3\uff0c\u8bfb\u548c\u5199\uff0c\u5982\u679c\u6211\u4eec\u5199\u7684\u8bdd\uff0c1\u548c3\u8fd4\u56de\u4e86\uff0c2\u6ca1\u6709\u8fd4\u56de\uff0c\u8fd9\u65f6\u5019\u8fd8\u662f\u53ef\u4ee5\u6210\u529f\u7684\u3002\u53e6\u5916\u5728\u8bfb\u7684\u65f6\u5019\uff0c\u53ea\u9700\u8981\u8bfb2\u4e2a\uff0c\u4e00\u5b9a\u80fd\u8bfb\u52301\u6216\u8005\u662f3\uff0c\u8fd9\u4e2a\u65f6\u5019\u53ea\u8981\u6211\u4eec\u80fd\u591f\u901a\u8fc7\u65f6\u95f4\u6233\u65b9\u5f0f\uff0c\u5224\u65ad\u8c01\u6709\u6b63\u786e\u7684\u6570\u636e\uff0c\u5c31\u80fd\u591f\u4fdd\u8bc1\u6570\u636e\u7684\u5f3a\u4e00\u81f4\u6027\u3002<\/p>\n<p>W\u5927\u4e8eN\uff0c\u672c\u6765\u51993\u4e2a\u8282\u70b9\uff0c\u73b0\u5728\u6302\u4e86\u4e00\u4e2a\u8282\u70b9\uff0c\u4f60\u5982\u679c\u5c0f\u4e8e\u8fd9\u4e2a\u7684\u8bdd\uff0c\u6bd4\u5982\u4f60\u53ea\u67092\u4e2a\u8282\u70b9\uff0c\u4f60\u6302\u4e86\u4e00\u4e2a\u8282\u70b9\uff0c\u5199\u5c31\u4e0d\u80fd\u7528\u4e86\u30023\u4e2a\u8282\u70b9\u7684\u8bdd\uff0c\u6302\u4e86\u4e00\u4e2a\u8fd8\u80fd\u7528\u3002<\/p>\n<p>\u4eca\u5929\u6211\u7684\u5206\u4eab\u5c31\u5230\u8fd9\u91cc\uff0c\u6211\u603b\u7ed3\u4e00\u4e0b\uff0c\u4ece\u5e95\u5c42\u5230\u9ad8\u5c42\u7684\u770b\u6cd5\uff0c\u4e0d\u4e00\u5b9a\u6b63\u786e\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8c01\u8fd8\u4e0d\u61c2\u5206\u5e03\u5f0f\u7cfb\u7edf\u6027\u80fd\u8c03\u4f18\uff0c\u8bf7\u628a\u8fd9\u7bc7\u6587\u7ae0\u7529\u7ed9\u4ed6~ \u4f5c\u8005\uff1a\u9676\u8f89 2020-12-21 14:58:25 \u65b0\u95fb \u524d [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":220338,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[55],"tags":[],"class_list":["post-220337","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cloud-phone"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/220337","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=220337"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/220337\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media\/220338"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=220337"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=220337"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=220337"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}