{"id":35808,"date":"2025-03-26T13:40:53","date_gmt":"2025-03-26T05:40:53","guid":{"rendered":"https:\/\/www.yunshan.net\/blog\/?p=35808"},"modified":"2025-03-26T13:40:53","modified_gmt":"2025-03-26T05:40:53","slug":"ebpf%e5%9c%a8%e9%ab%98%e5%8f%af%e7%94%a8%e6%80%a7%e7%b3%bb%e7%bb%9f%e4%b8%ad%e7%9a%84%e5%85%b3%e9%94%ae%e4%bd%9c%e7%94%a8%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.yunshan.net\/blog\/archives\/35808.html","title":{"rendered":"eBPF\u5728\u9ad8\u53ef\u7528\u6027\u7cfb\u7edf\u4e2d\u7684\u5173\u952e\u4f5c\u7528\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"<p style=\"text-align: center;\">\n<p><img decoding=\"async\" src=\"https:\/\/www.yunshan.net\/blog\/wp-content\/uploads\/2025\/03\/4DhF9ZYR.jpg\" alt=\"eBPF\u5728\u9ad8\u53ef\u7528\u6027\u7cfb\u7edf\u4e2d\u7684\u5173\u952e\u4f5c\u7528\u662f\u4ec0\u4e48\uff1f\" ><\/p>\n<\/p>\n<hr>\n<p><strong>\u524d\u8a00<\/strong><br \/>\n\u5728\u4e91\u8ba1\u7b97\u4e0e\u5fae\u670d\u52a1\u67b6\u6784\u4e3b\u5bfc\u6280\u672f\u6f14\u8fdb\u7684\u4eca\u5929\uff0c<strong>\u9ad8\u53ef\u7528\u6027\uff08High Availability, HA\uff09<\/strong>\u5df2\u6210\u4e3a\u4f01\u4e1a\u7ea7\u7cfb\u7edf\u7684\u6838\u5fc3\u6307\u6807\u3002\u65e0\u8bba\u662f\u91d1\u878d\u4ea4\u6613\u7cfb\u7edf\u6bcf\u79d2\u6570\u4e07\u7b14\u7684\u8bf7\u6c42\uff0c\u8fd8\u662f\u7535\u5546\u5e73\u53f0\u5728\u201c\u53cc\u5341\u4e00\u201d\u671f\u95f4\u7684\u6d41\u91cf\u6d2a\u5cf0\uff0c\u7cfb\u7edf\u5d29\u6e83\u7684\u6bcf\u4e00\u79d2\u90fd\u53ef\u80fd\u610f\u5473\u7740\u6570\u767e\u4e07\u7f8e\u5143\u7684\u635f\u5931\u3002\u7136\u800c\uff0c\u4f20\u7edf\u7684\u76d1\u63a7\u3001\u5bb9\u9519\u4e0e\u6027\u80fd\u4f18\u5316\u65b9\u6848\u5f80\u5f80\u9762\u4e34<strong>\u4ee3\u7801\u4fb5\u5165\u6027\u9ad8<\/strong>\u3001<strong>\u8d44\u6e90\u6d88\u8017\u5927<\/strong>\u4ee5\u53ca<strong>\u54cd\u5e94\u5ef6\u8fdf\u663e\u8457<\/strong>\u7684\u75db\u70b9\u3002<\/p>\n<p>\u6b63\u662f\u5728\u8fd9\u6837\u7684\u80cc\u666f\u4e0b\uff0c<strong><a href=\"https:\/\/www.yunshan.net\/\"   target=\"_blank\" style=\"color:blue\">eBPF<\/a>\uff08Extended Berkeley Packet Filter\uff09<\/strong>\u6280\u672f\u6084\u7136\u5d1b\u8d77\u3002\u8fd9\u9879\u6e90\u81eaLinux\u5185\u6838\u7684\u521b\u65b0\uff0c\u51ed\u501f\u5176<strong>\u5b89\u5168\u3001\u9ad8\u6548\u3001\u53ef\u7f16\u7a0b<\/strong>\u7684\u7279\u6027\uff0c\u6b63\u5728\u91cd\u65b0\u5b9a\u4e49\u9ad8\u53ef\u7528\u6027\u7cfb\u7edf\u7684\u8bbe\u8ba1\u8303\u5f0f\u3002\u4ece<strong>\u5b9e\u65f6\u6545\u969c\u68c0\u6d4b<\/strong>\u5230<strong>\u96f6\u505c\u673a\u70ed\u66f4\u65b0<\/strong>\uff0c\u4ece<strong>\u5fae\u79d2\u7ea7\u7f51\u7edc\u4f18\u5316<\/strong>\u5230<strong>\u52a8\u6001\u5b89\u5168\u9632\u62a4<\/strong>\uff0c<a href=\"https:\/\/www.yunshan.net\/\"   target=\"_blank\" style=\"color:blue\">eBPF<\/a>\u5982\u4f55\u6210\u4e3a\u9ad8\u53ef\u7528\u67b6\u6784\u7684\u201c\u9690\u5f62\u5b88\u62a4\u8005\u201d\uff1f\u672c\u6587\u5c06\u6df1\u5165\u89e3\u6790\u5176\u6280\u672f\u5185\u6838\u4e0e\u5e94\u7528\u5b9e\u8df5\u3002<\/p>\n<hr>\n<h3 id=\"\u4e00-ebpf-\u5185\u6838\u7ea7\u53ef\u89c2\u6d4b\u6027\u4e0e\u63a7\u5236\u7684\u9769\u547d\">\u4e00\u3001eBPF\uff1a\u5185\u6838\u7ea7\u53ef\u89c2\u6d4b\u6027\u4e0e\u63a7\u5236\u7684\u9769\u547d<\/h3>\n<p>eBPF\u5e76\u975e\u4e00\u4e2a\u5168\u65b0\u7684\u6982\u5ff5\uff0c\u4f46\u5176\u5728\u8fd1\u5e74\u6765\u7684\u7206\u53d1\u5f0f\u5e94\u7528\uff0c\u5f52\u529f\u4e8eLinux\u793e\u533a\u5bf9\u5176\u529f\u80fd\u7684\u6301\u7eed\u6269\u5c55\u3002\u7b80\u5355\u6765\u8bf4\uff0ceBPF\u5141\u8bb8\u5f00\u53d1\u8005\u5728\u4e0d\u4fee\u6539\u5185\u6838\u6e90\u7801\u3001\u4e0d\u91cd\u542f\u7cfb\u7edf\u7684\u524d\u63d0\u4e0b\uff0c<strong>\u52a8\u6001\u6ce8\u5165\u6c99\u76d2\u5316\u7a0b\u5e8f<\/strong>\u5230\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u4e2d\u3002\u8fd9\u79cd\u80fd\u529b\u76f4\u63a5\u6253\u7834\u4e86\u4f20\u7edf\u76d1\u63a7\u5de5\u5177\uff08\u5982iptables\u3001tcpdump\uff09\u7684\u5c40\u9650\uff1a<\/p>\n<ul>\n<li><strong>\u96f6\u4fb5\u5165\u6027<\/strong>\uff1a\u65e0\u9700\u8c03\u6574\u4e1a\u52a1\u4ee3\u7801\u6216\u91cd\u542f\u670d\u52a1\uff0c\u5373\u53ef\u5b9e\u73b0\u6df1\u5ea6\u7cfb\u7edf\u76d1\u63a7\uff1b\n<\/li>\n<li><strong>\u7eb3\u79d2\u7ea7\u7cbe\u5ea6<\/strong>\uff1a\u5185\u6838\u6001\u7684\u6570\u636e\u91c7\u96c6\u4e0e\u5206\u6790\uff0c\u907f\u514d\u7528\u6237\u6001-\u5185\u6838\u6001\u5207\u6362\u7684\u5f00\u9500\uff1b\n<\/li>\n<li><strong>\u5168\u6808\u8986\u76d6<\/strong>\uff1a\u4ece\u7f51\u7edc\u6570\u636e\u5305\u3001\u7cfb\u7edf\u8c03\u7528\u5230\u8fdb\u7a0b\u8c03\u5ea6\uff0c\u8986\u76d6\u6240\u6709\u5173\u952e\u5c42\u7ea7\u3002\n<\/li>\n<\/ul>\n<p>\u4ee5\u67d0\u5168\u7403\u9876\u7ea7\u6d41\u5a92\u4f53\u5e73\u53f0\u4e3a\u4f8b\uff0c\u5176\u901a\u8fc7eBPF\u91cd\u6784\u4e86\u670d\u52a1\u7f51\u683c\u7684\u6d41\u91cf\u63a7\u5236\u6a21\u5757\uff0c\u5c06<strong>\u7f51\u7edc\u5ef6\u8fdf\u964d\u4f4e\u4e8640%<\/strong>\uff0c\u540c\u65f6\u5b9e\u73b0\u4e86\u5bf9\u6bcf\u79d2\u6570\u5341\u4e07\u6b21API\u8c03\u7528\u7684\u5b9e\u65f6\u5f02\u5e38\u68c0\u6d4b\u3002\u8fd9\u79cd\u201c\u65e0\u611f\u5347\u7ea7\u201d\u6b63\u662f\u9ad8\u53ef\u7528\u7cfb\u7edf\u68a6\u5bd0\u4ee5\u6c42\u7684\u7279\u6027\u3002<\/p>\n<hr>\n<h3 id=\"\u4e8c-\u9ad8\u53ef\u7528\u6027\u7cfb\u7edf\u7684\u56db\u5927\u6838\u5fc3\u6311\u6218\u4e0eebpf\u7684\u7834\u5c40\u4e4b\u9053\">\u4e8c\u3001\u9ad8\u53ef\u7528\u6027\u7cfb\u7edf\u7684\u56db\u5927\u6838\u5fc3\u6311\u6218\u4e0eeBPF\u7684\u7834\u5c40\u4e4b\u9053<\/h3>\n<h4 id=\"1-\u5b9e\u65f6\u76d1\u63a7-\u4ece-\u4e8b\u540e\u590d\u76d8-\u5230-\u52a8\u6001\u900f\u89c6\">1. <strong>\u5b9e\u65f6\u76d1\u63a7\uff1a\u4ece\u201c\u4e8b\u540e\u590d\u76d8\u201d\u5230\u201c\u52a8\u6001\u900f\u89c6\u201d<\/strong><\/h4>\n<p>\u4f20\u7edf\u76d1\u63a7\u5de5\u5177\uff08\u5982Nagios\u3001<a href=\"https:\/\/www.yunshan.net\/\"   target=\"_blank\" style=\"color:blue\">Prometheus<\/a>\uff09\u901a\u5e38\u57fa\u4e8e\u91c7\u6837\u6216\u65e5\u5fd7\u805a\u5408\uff0c\u5b58\u5728<strong>\u5206\u949f\u7ea7\u5ef6\u8fdf<\/strong>\uff0c\u96be\u4ee5\u6355\u6349\u77ac\u65f6\u6545\u969c\u3002\u800ceBPF\u901a\u8fc7\u5728\u5185\u6838\u5c42\u76f4\u63a5\u6302\u8f7d\u63a2\u9488\uff0c\u53ef\u4ee5\u5b9e\u65f6\u6355\u83b7\u4ee5\u4e0b\u5173\u952e\u6307\u6807\uff1a<\/p>\n<ul>\n<li><strong>\u7f51\u7edc\u5c42<\/strong>\uff1aTCP\u91cd\u4f20\u7387\u3001\u8fde\u63a5\u961f\u5217\u79ef\u538b\u3001DNS\u89e3\u6790\u5ef6\u8fdf\uff1b\n<\/li>\n<li><strong>\u5e94\u7528\u5c42<\/strong>\uff1aHTTP\u8bf7\u6c42\u9519\u8bef\u7801\u5206\u5e03\u3001gRPC\u65b9\u6cd5\u7684\u8c03\u7528\u65f6\u5ef6\uff1b\n<\/li>\n<li><strong>\u7cfb\u7edf\u5c42<\/strong>\uff1aCPU\u8c03\u5ea6\u963b\u585e\u3001\u5185\u5b58\u7f3a\u9875\u5f02\u5e38\u3001\u78c1\u76d8I\/O\u7ade\u4e89\u3002\n<\/li>\n<\/ul>\n<p>\u67d0\u5934\u90e8\u7535\u5546\u5e73\u53f0\u5229\u7528eBPF\u7a0b\u5e8f\u8ffd\u8e2aMySQL\u67e5\u8be2\u7684\u6267\u884c\u8def\u5f84\uff0c\u53d1\u73b0\u4e86\u4e00\u4e2a\u7531<strong>\u9501\u7ade\u4e89\u5f15\u53d1\u7684\u5468\u671f\u6027\u6162\u67e5\u8be2<\/strong>\u95ee\u9898\u3002\u901a\u8fc7\u52a8\u6001\u8c03\u6574\u7ebf\u7a0b\u6c60\u53c2\u6570\uff0c\u5176\u6570\u636e\u5e93\u96c6\u7fa4\u7684\u53ef\u7528\u6027\u4ece99.9%\u63d0\u5347\u81f399.99%\u3002<\/p>\n<h4 id=\"2-\u6545\u969c\u81ea\u6108-\u4ece-\u4eba\u5de5\u54cd\u5e94-\u5230-\u667a\u80fd\u95ed\u73af\">2. <strong>\u6545\u969c\u81ea\u6108\uff1a\u4ece\u201c\u4eba\u5de5\u54cd\u5e94\u201d\u5230\u201c\u667a\u80fd\u95ed\u73af\u201d<\/strong><\/h4>\n<p>\u9ad8\u53ef\u7528\u7cfb\u7edf\u7684\u7ec8\u6781\u76ee\u6807\u662f\u5b9e\u73b0<strong>\u6545\u969c\u81ea\u6108\uff08Autonomous Healing\uff09<\/strong>\u3002eBPF\u7684\u72ec\u7279\u4e4b\u5904\u5728\u4e8e\uff0c\u5176\u7a0b\u5e8f\u4e0d\u4ec5\u80fd\u6536\u96c6\u6570\u636e\uff0c\u8fd8\u80fd\u6839\u636e\u9884\u8bbe\u7b56\u7565<strong>\u4e3b\u52a8\u89e6\u53d1\u4fee\u590d\u52a8\u4f5c<\/strong>\uff1a<\/p>\n<ul>\n<li>\u81ea\u52a8\u9694\u79bb\u5f02\u5e38Pod\uff08\u5982\u5185\u5b58\u6cc4\u6f0f\u7684\u5bb9\u5668\uff09\uff1b\n<\/li>\n<li>\u52a8\u6001\u9650\u6d41\u7a81\u589e\u6d41\u91cf\uff08\u57fa\u4e8eQPS\u6216\u9519\u8bef\u7387\u9608\u503c\uff09\uff1b\n<\/li>\n<li>\u5b9e\u65f6\u963b\u65ad\u5b89\u5168\u653b\u51fb\uff08\u5982\u68c0\u6d4b\u5230SQL\u6ce8\u5165\u7279\u5f81\u65f6\u4e22\u5f03\u8bf7\u6c42\uff09\u3002\n<\/li>\n<\/ul>\n<p>\u57282021\u5e74\u7684\u4e00\u6b21\u516c\u5f00\u5206\u4eab\u4e2d\uff0cGoogle\u4e91\u56e2\u961f\u900f\u9732\uff0c\u5176\u57fa\u4e8eeBPF\u7684Kubernetes\u7f51\u7edc\u63d2\u4ef6\uff0c\u6210\u529f\u5c06<strong>\u670d\u52a1\u6545\u969c\u6062\u590d\u65f6\u95f4\uff08MTTR\uff09\u4ece\u5206\u949f\u7ea7\u538b\u7f29\u81f3\u79d2\u7ea7<\/strong>\u3002<\/p>\n<h4 id=\"3-\u7f51\u7edc\u6027\u80fd\u4f18\u5316-\u7ed5\u8fc7\u5185\u6838\u534f\u8bae\u6808\u7684-\u6377\u5f84\">3. <strong>\u7f51\u7edc\u6027\u80fd\u4f18\u5316\uff1a\u7ed5\u8fc7\u5185\u6838\u534f\u8bae\u6808\u7684\u201c\u6377\u5f84\u201d<\/strong><\/h4>\n<p>\u4f20\u7edf\u7f51\u7edc\u534f\u8bae\u6808\u7684\u5197\u957f\u8def\u5f84\uff08\u5982TCP\/IP\u5904\u7406\u3001\u4e0a\u4e0b\u6587\u5207\u6362\uff09\u5df2\u6210\u4e3a\u9ad8\u5e76\u53d1\u573a\u666f\u7684\u6027\u80fd\u74f6\u9888\u3002eBPF\u63d0\u4f9b\u4e86\u4e24\u79cd\u9769\u65b0\u65b9\u6848\uff1a<\/p>\n<ul>\n<li><strong>XDP\uff08Express Data Path\uff09<\/strong>\uff1a\u5728\u7f51\u7edc\u9a71\u52a8\u5c42\u76f4\u63a5\u5904\u7406\u6570\u636e\u5305\uff0c\u652f\u6301\u7ebf\u901f\u8fc7\u6ee4\u4e0e\u8f6c\u53d1\uff0c\u9002\u5408DDoS\u9632\u5fa1\u548c\u8d1f\u8f7d\u5747\u8861\uff1b\n<\/li>\n<li><strong>BPF_PROG_TYPE_SOCK_OPS<\/strong>\uff1a\u5728TCP\u5c42\u52a8\u6001\u4f18\u5316\u62e5\u585e\u63a7\u5236\u7b97\u6cd5\uff0c\u9002\u5e94\u6df7\u5408\u4e91\u73af\u5883\u7684\u7f51\u7edc\u6296\u52a8\u3002\n<\/li>\n<\/ul>\n<p>\u67d0\u91d1\u878d\u79d1\u6280\u516c\u53f8\u901a\u8fc7XDP\u5b9e\u73b0\u4e86<strong>\u5355\u8282\u70b9200Gbps\u7684SSL\u5378\u8f7d\u80fd\u529b<\/strong>\uff0c\u540c\u65f6\u5c06CPU\u5229\u7528\u7387\u964d\u4f4e\u4e8670%\u3002\u8fd9\u4e00\u4f18\u5316\u76f4\u63a5\u652f\u6491\u4e86\u5176\u9ad8\u9891\u4ea4\u6613\u7cfb\u7edf\u7684\u5fae\u79d2\u7ea7\u5ef6\u8fdf\u8981\u6c42\u3002<\/p>\n<h4 id=\"4-\u5b89\u5168\u9632\u62a4-\u5185\u6838\u6001\u7684\u52a8\u6001-\u514d\u75ab\u7cfb\u7edf\">4. <strong>\u5b89\u5168\u9632\u62a4\uff1a\u5185\u6838\u6001\u7684\u52a8\u6001\u201c\u514d\u75ab\u7cfb\u7edf\u201d<\/strong><\/h4>\n<p>\u5b89\u5168\u6f0f\u6d1e\u662f\u7cfb\u7edf\u53ef\u7528\u6027\u7684\u201c\u9690\u5f62\u6740\u624b\u201d\u3002eBPF\u901a\u8fc7\u4ee5\u4e0b\u673a\u5236\u6784\u5efa\u4e86\u7eb5\u6df1\u9632\u5fa1\u4f53\u7cfb\uff1a<\/p>\n<ul>\n<li><strong>\u884c\u4e3a\u5206\u6790<\/strong>\uff1a\u76d1\u63a7\u8fdb\u7a0b\u7684\u6743\u9650\u63d0\u5347\u3001\u6587\u4ef6\u8bbf\u95ee\u6a21\u5f0f\uff0c\u68c0\u6d4b\u96f6\u65e5\u653b\u51fb\uff1b\n<\/li>\n<li><strong>\u52a8\u6001\u7b56\u7565<\/strong>\uff1a\u6839\u636e\u670d\u52a1\u72b6\u6001\u5b9e\u65f6\u8c03\u6574\u9632\u706b\u5899\u89c4\u5219\uff08\u5982\u4e34\u65f6\u5c01\u7981\u5f02\u5e38IP\uff09\uff1b\n<\/li>\n<li><strong>\u5185\u5b58\u4fdd\u62a4<\/strong>\uff1a\u5229\u7528eBPF\u7684kprobes\u8ffd\u8e2a\u5185\u5b58\u5206\u914d\uff0c\u9632\u5fa1Use-After-Free\u6f0f\u6d1e\u3002\n<\/li>\n<\/ul>\n<p>Cloudflare\u7684\u516c\u5f00\u6848\u4f8b\u663e\u793a\uff0c\u5176\u57fa\u4e8eeBPF\u7684DDoS\u9632\u62a4\u7cfb\u7edf\u6210\u529f\u62b5\u5fa1\u4e86<strong>\u5cf0\u503c\u8d85\u8fc72Tbps\u7684\u653b\u51fb\u6d41\u91cf<\/strong>\uff0c\u4e14\u672a\u5bf9\u6b63\u5e38\u4e1a\u52a1\u9020\u6210\u4efb\u4f55\u5f71\u54cd\u3002<\/p>\n<hr>\n<h3 id=\"\u4e09-\u5b9e\u8df5\u6307\u5357-\u5982\u4f55\u57fa\u4e8eebpf\u8bbe\u8ba1\u9ad8\u53ef\u7528\u67b6\u6784\">\u4e09\u3001\u5b9e\u8df5\u6307\u5357\uff1a\u5982\u4f55\u57fa\u4e8eeBPF\u8bbe\u8ba1\u9ad8\u53ef\u7528\u67b6\u6784\uff1f<\/h3>\n<h4 id=\"\u6b65\u9aa41-\u5b9a\u4e49slo\u4e0e\u5173\u952e\u6545\u969c\u573a\u666f\"><strong>\u6b65\u9aa41\uff1a\u5b9a\u4e49SLO\u4e0e\u5173\u952e\u6545\u969c\u573a\u666f<\/strong><\/h4>\n<p>\u660e\u786e\u7cfb\u7edf\u7684\u53ef\u7528\u6027\u76ee\u6807\uff08\u598299.999%\uff09\uff0c\u5e76\u8bc6\u522b\u6838\u5fc3\u98ce\u9669\u70b9\uff08\u5982\u6570\u636e\u5e93\u4e3b\u4ece\u5207\u6362\u3001\u7f51\u5173\u7194\u65ad\u7b56\u7565\u5931\u6548\uff09\u3002<\/p>\n<h4 id=\"\u6b65\u9aa42-\u5206\u5c42\u6ce8\u5165ebpf\u63a2\u9488\"><strong>\u6b65\u9aa42\uff1a\u5206\u5c42\u6ce8\u5165eBPF\u63a2\u9488<\/strong><\/h4>\n<ul>\n<li><strong>\u7f51\u7edc\u5c42<\/strong>\uff1a\u4f7f\u7528XDP\u6216TC\uff08Traffic Control\uff09\u7a0b\u5e8f\u4f18\u5316\u6d41\u91cf\u8def\u5f84\uff1b\n<\/li>\n<li><strong>\u7cfb\u7edf\u5c42<\/strong>\uff1a\u901a\u8fc7tracepoints\u76d1\u63a7\u8fdb\u7a0b\u8c03\u5ea6\u4e0e\u8d44\u6e90\u4e89\u7528\uff1b\n<\/li>\n<li><strong>\u5e94\u7528\u5c42<\/strong>\uff1a\u5229\u7528uprobes\u5206\u6790\u4e1a\u52a1\u51fd\u6570\u7684\u6267\u884c\u6027\u80fd\u3002\n<\/li>\n<\/ul>\n<h4 id=\"\u6b65\u9aa43-\u6784\u5efa\u53cd\u9988\u95ed\u73af\"><strong>\u6b65\u9aa43\uff1a\u6784\u5efa\u53cd\u9988\u95ed\u73af<\/strong><\/h4>\n<p>\u5c06eBPF\u91c7\u96c6\u7684\u6307\u6807\u4e0e<a href=\"https:\/\/www.yunshan.net\/\"   target=\"_blank\" style=\"color:blue\">Prometheus<\/a>\u3001Grafana\u7b49\u5e73\u53f0\u96c6\u6210\uff0c\u5e76\u901a\u8fc7Fluentd\u6216<a href=\"https:\/\/www.yunshan.net\/\"   target=\"_blank\" style=\"color:blue\">OpenTelemetry<\/a>\u5b9e\u73b0\u65e5\u5fd7\u5173\u8054\u5206\u6790\u3002<\/p>\n<h4 id=\"\u6b65\u9aa44-\u7070\u5ea6\u9a8c\u8bc1\u4e0e\u52a8\u6001\u8c03\">**\u6b65\u9aa44\uff1a\u7070\u5ea6\u9a8c\u8bc1\u4e0e\u52a8\u6001\u8c03<\/h4>\n","protected":false},"excerpt":{"rendered":"<p>\u524d\u8a00 \u5728\u4e91\u8ba1\u7b97\u4e0e\u5fae\u670d\u52a1\u67b6\u6784\u4e3b\u5bfc\u6280\u672f\u6f14\u8fdb\u7684\u4eca\u5929\uff0c\u9ad8\u53ef\u7528\u6027\uff08High Availability, HA\uff09\u5df2\u6210\u4e3a\u4f01\u4e1a\u7ea7\u7cfb\u7edf\u7684\u6838\u5fc3\u6307\u6807\u3002\u65e0\u8bba\u662f\u91d1\u878d\u4ea4\u6613\u7cfb\u7edf\u6bcf\u79d2\u6570\u4e07\u7b14\u7684\u8bf7\u6c42\uff0c\u8fd8\u662f\u7535\u5546\u5e73\u53f0\u5728\u201c\u53cc\u5341\u4e00\u201d\u671f\u95f4\u7684\u6d41\u91cf\u6d2a\u5cf0\uff0c\u7cfb\u7edf\u5d29\u6e83\u7684\u6bcf\u4e00\u79d2\u90fd\u53ef\u80fd\u610f\u5473\u7740\u6570\u767e\u4e07\u7f8e\u5143\u7684\u635f\u5931\u3002\u7136\u800c\uff0c\u4f20\u7edf\u7684\u76d1\u63a7\u3001\u5bb9\u9519\u4e0e\u6027\u80fd\u4f18\u5316\u65b9\u6848\u5f80\u5f80\u9762\u4e34\u4ee3\u7801\u4fb5\u5165\u6027\u9ad8\u3001\u8d44\u6e90\u6d88\u8017\u5927\u4ee5\u53ca\u54cd\u5e94\u5ef6\u8fdf\u663e\u8457\u7684\u75db\u70b9\u3002 \u6b63\u662f\u5728\u8fd9\u6837\u7684\u80cc\u666f\u4e0b\uff0ceBPF\uff08Extended Berkeley Packet Filter\uff09\u6280\u672f\u6084\u7136\u5d1b\u8d77\u3002\u8fd9\u9879\u6e90\u81eaLinux\u5185\u6838\u7684\u521b\u65b0\uff0c\u51ed\u501f\u5176\u5b89\u5168\u3001\u9ad8\u6548\u3001\u53ef\u7f16\u7a0b\u7684\u7279\u6027\uff0c\u6b63\u5728\u91cd\u65b0\u5b9a\u4e49\u9ad8\u53ef\u7528\u6027\u7cfb\u7edf\u7684\u8bbe\u8ba1\u8303\u5f0f\u3002\u4ece\u5b9e\u65f6\u6545\u969c\u68c0\u6d4b\u5230\u96f6\u505c\u673a\u70ed\u66f4\u65b0\uff0c\u4ece\u5fae\u79d2\u7ea7\u7f51\u7edc\u4f18\u5316\u5230\u52a8\u6001\u5b89\u5168\u9632\u62a4\uff0ceBPF\u5982\u4f55\u6210\u4e3a\u9ad8\u53ef\u7528\u67b6\u6784\u7684\u201c\u9690\u5f62\u5b88\u62a4\u8005\u201d\uff1f\u672c\u6587\u5c06\u6df1\u5165\u89e3\u6790\u5176\u6280\u672f\u5185\u6838\u4e0e\u5e94\u7528\u5b9e\u8df5\u3002 \u4e00\u3001eBPF\uff1a\u5185\u6838\u7ea7\u53ef\u89c2\u6d4b\u6027\u4e0e\u63a7\u5236\u7684\u9769\u547d eBPF\u5e76\u975e\u4e00\u4e2a\u5168\u65b0\u7684\u6982\u5ff5\uff0c\u4f46\u5176\u5728\u8fd1\u5e74\u6765\u7684\u7206\u53d1\u5f0f\u5e94\u7528\uff0c\u5f52\u529f\u4e8eLinux\u793e\u533a\u5bf9\u5176\u529f\u80fd\u7684\u6301\u7eed\u6269\u5c55\u3002\u7b80\u5355\u6765\u8bf4\uff0ceBPF\u5141\u8bb8\u5f00\u53d1\u8005\u5728\u4e0d\u4fee\u6539\u5185\u6838\u6e90\u7801\u3001\u4e0d\u91cd\u542f\u7cfb\u7edf\u7684\u524d\u63d0\u4e0b\uff0c\u52a8\u6001\u6ce8\u5165\u6c99\u76d2\u5316\u7a0b\u5e8f\u5230\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u4e2d\u3002\u8fd9\u79cd\u80fd\u529b\u76f4\u63a5\u6253\u7834\u4e86\u4f20\u7edf\u76d1\u63a7\u5de5\u5177\uff08\u5982iptables\u3001tcpdump\uff09\u7684\u5c40\u9650\uff1a \u96f6\u4fb5\u5165\u6027\uff1a\u65e0\u9700\u8c03\u6574\u4e1a\u52a1\u4ee3\u7801\u6216\u91cd\u542f\u670d\u52a1\uff0c\u5373\u53ef\u5b9e\u73b0\u6df1\u5ea6\u7cfb\u7edf\u76d1\u63a7\uff1b \u7eb3\u79d2\u7ea7\u7cbe\u5ea6\uff1a\u5185\u6838\u6001\u7684\u6570\u636e\u91c7\u96c6\u4e0e\u5206\u6790\uff0c\u907f\u514d\u7528\u6237\u6001-\u5185\u6838\u6001\u5207\u6362\u7684\u5f00\u9500\uff1b \u5168\u6808\u8986\u76d6\uff1a\u4ece\u7f51\u7edc\u6570\u636e\u5305\u3001\u7cfb\u7edf\u8c03\u7528\u5230\u8fdb\u7a0b\u8c03\u5ea6\uff0c\u8986\u76d6\u6240\u6709\u5173\u952e\u5c42\u7ea7\u3002 \u4ee5\u67d0\u5168\u7403\u9876\u7ea7\u6d41\u5a92\u4f53\u5e73\u53f0\u4e3a\u4f8b\uff0c\u5176\u901a\u8fc7eBPF\u91cd\u6784\u4e86\u670d\u52a1\u7f51\u683c\u7684\u6d41\u91cf\u63a7\u5236\u6a21\u5757\uff0c\u5c06\u7f51\u7edc\u5ef6\u8fdf\u964d\u4f4e\u4e8640%\uff0c\u540c\u65f6\u5b9e\u73b0\u4e86\u5bf9\u6bcf\u79d2\u6570\u5341\u4e07\u6b21API\u8c03\u7528\u7684\u5b9e\u65f6\u5f02\u5e38\u68c0\u6d4b\u3002\u8fd9\u79cd\u201c\u65e0\u611f\u5347\u7ea7\u201d\u6b63\u662f\u9ad8\u53ef\u7528\u7cfb\u7edf\u68a6\u5bd0\u4ee5\u6c42\u7684\u7279\u6027\u3002 \u4e8c\u3001\u9ad8\u53ef\u7528\u6027\u7cfb\u7edf\u7684\u56db\u5927\u6838\u5fc3\u6311\u6218\u4e0eeBPF\u7684\u7834\u5c40\u4e4b\u9053 1. \u5b9e\u65f6\u76d1\u63a7\uff1a\u4ece\u201c\u4e8b\u540e\u590d\u76d8\u201d\u5230\u201c\u52a8\u6001\u900f\u89c6\u201d \u4f20\u7edf\u76d1\u63a7\u5de5\u5177\uff08\u5982Nagios\u3001Prometheus\uff09\u901a\u5e38\u57fa\u4e8e\u91c7\u6837\u6216\u65e5\u5fd7\u805a\u5408\uff0c\u5b58\u5728\u5206\u949f\u7ea7\u5ef6\u8fdf\uff0c\u96be\u4ee5\u6355\u6349\u77ac\u65f6\u6545\u969c\u3002\u800ceBPF\u901a\u8fc7\u5728\u5185\u6838\u5c42\u76f4\u63a5\u6302\u8f7d\u63a2\u9488\uff0c\u53ef\u4ee5\u5b9e\u65f6\u6355\u83b7\u4ee5\u4e0b\u5173\u952e\u6307\u6807\uff1a \u7f51\u7edc\u5c42\uff1aTCP\u91cd\u4f20\u7387\u3001\u8fde\u63a5\u961f\u5217\u79ef\u538b\u3001DNS\u89e3\u6790\u5ef6\u8fdf\uff1b \u5e94\u7528\u5c42\uff1aHTTP\u8bf7\u6c42\u9519\u8bef\u7801\u5206\u5e03\u3001gRPC\u65b9\u6cd5\u7684\u8c03\u7528\u65f6\u5ef6\uff1b \u7cfb\u7edf\u5c42\uff1aCPU\u8c03\u5ea6\u963b\u585e\u3001\u5185\u5b58\u7f3a\u9875\u5f02\u5e38\u3001\u78c1\u76d8I\/O\u7ade\u4e89\u3002 \u67d0\u5934\u90e8\u7535\u5546\u5e73\u53f0\u5229\u7528eBPF\u7a0b\u5e8f\u8ffd\u8e2aMySQL\u67e5\u8be2\u7684\u6267\u884c\u8def\u5f84\uff0c\u53d1\u73b0\u4e86\u4e00\u4e2a\u7531\u9501\u7ade\u4e89\u5f15\u53d1\u7684\u5468\u671f\u6027\u6162\u67e5\u8be2\u95ee\u9898\u3002\u901a\u8fc7\u52a8\u6001\u8c03\u6574\u7ebf\u7a0b\u6c60\u53c2\u6570\uff0c\u5176\u6570\u636e\u5e93\u96c6\u7fa4\u7684\u53ef\u7528\u6027\u4ece99.9%\u63d0\u5347\u81f399.99%\u3002 2. \u6545\u969c\u81ea\u6108\uff1a\u4ece\u201c\u4eba\u5de5\u54cd\u5e94\u201d\u5230\u201c\u667a\u80fd\u95ed\u73af\u201d \u9ad8\u53ef\u7528\u7cfb\u7edf\u7684\u7ec8\u6781\u76ee\u6807\u662f\u5b9e\u73b0\u6545\u969c\u81ea\u6108\uff08Autonomous 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