\u7f51\u7edc\u8bca\u65ad\u5de5\u5177\u5305<\/strong><\/h2>\n

\u7f51\u7edc\u6027\u80fd\u5206\u6790\u9700\u8981\u4f7f\u7528\u4e13\u4e1a\u5de5\u5177\u548c\u65b9\u6cd5\u8fdb\u884c\u590d\u6742\u7684\u5904\u7406\uff1a<\/p>\n

\n
• \u5ef6\u8fdf\u6d4b\u8bd5\uff1a\n
  \n
  • MTR\uff08My TraceRoute\uff09\u9010\u8df3\u5ef6\u8fdf\u5206\u6790<\/li>\n
  • \u4f7f\u7528\u81ea\u5b9a\u4e49\u6570\u636e\u5305\u5927\u5c0f\u7684ICMP\u56de\u663e\u8bf7\u6c42<\/li>\n
  • TCP\u63e1\u624b\u65f6\u95f4\u6d4b\u91cf<\/li>\n<\/ul>\n<\/li>\n
  • \u5e26\u5bbd\u76d1\u63a7\uff1a\n
    \n
    • \u4f7f\u7528iperf3\u8fdb\u884c\u541e\u5410\u91cf\u6d4b\u8bd5<\/li>\n
    • \u7f51\u7edc\u63a5\u53e3\u9971\u548c\u5ea6\u68c0\u67e5<\/li>\n
    • QoS\u914d\u7f6e\u9a8c\u8bc1<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

      \u9ad8\u7ea7\u8bca\u65ad\u547d\u4ee4<\/strong><\/h2>\n

      \u4ee5\u4e0b\u662f\u91cd\u8981\u8bca\u65ad\u547d\u4ee4\u7684\u6280\u672f\u7ec6\u8282\uff1a<\/p>\n

      \r\n # \u7f51\u7edc\u5ef6\u8fdf\u68c0\u67e5\r\n mtr -n -r target_host -c 100\r\n # TCP\u8fde\u63a5\u5206\u6790\r\n netstat -nat | grep ESTABLISHED\r\n # DNS\u89e3\u6790\u65f6\u95f4\r\n dig +trace example.com\r\n # HTTP\u54cd\u5e94\u65f6\u95f4\r\n curl -w \"%{time_total}\\n\" -o \/dev\/null -s http:\/\/example.com\r\n <\/code><\/pre>\n
      \u6027\u80fd\u6307\u6807\u57fa\u51c6<\/strong><\/h2>\n
      \u5efa\u7acb\u4ee5\u4e0b\u5173\u952e\u6027\u80fd\u6307\u6807\uff08KPI\uff09\u4ee5\u8fdb\u884c\u51c6\u786e\u8bca\u65ad\uff1a<\/p>\n
      \n
      \u9996\u5b57\u8282\u65f6\u95f4\uff08TTFB\uff09\uff1a< 200\u6beb\u79d2<\/li>\n
      DNS\u89e3\u6790\uff1a< 50\u6beb\u79d2<\/li>\n
      \u670d\u52a1\u5668\u5904\u7406\u65f6\u95f4\uff1a< 300\u6beb\u79d2<\/li>\n
      \u7f51\u7edc\u5f80\u8fd4\u65f6\u95f4\uff1a< 100\u6beb\u79d2<\/li>\n
      \u9875\u9762\u52a0\u8f7d\u65f6\u95f4\uff1a< 3\u79d2<\/li>\n<\/ul>\n
      \u57fa\u7840\u8bbe\u65bd\u89e3\u51b3\u65b9\u6848<\/strong><\/h2>\n
      \u6839\u636e\u8bca\u65ad\u7ed3\u679c\uff0c\u5b9e\u65bd\u8fd9\u4e9b\u6709\u9488\u5bf9\u6027\u7684\u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n
      \n
      \u670d\u52a1\u5668\u914d\u7f6e\u4f18\u5316\uff1a\n
      \n
      \u5b9e\u65bd\u5185\u6838\u53c2\u6570\u8c03\u4f18<\/li>\n
      \u4f18\u5316TCP\/IP\u534f\u8bae\u6808\u8bbe\u7f6e<\/li>\n
      \u914d\u7f6e\u9002\u5f53\u7684CPU\u8c03\u5ea6\u5668\u8bbe\u7f6e<\/li>\n
      \u8c03\u6574\u5185\u5b58\u5206\u914d\u9650\u5236<\/li>\n<\/ul>\n<\/li>\n
      \u7f51\u7edc\u589e\u5f3a\uff1a\n
      \n
      \u90e8\u7f72\u591aCDN\u67b6\u6784<\/li>\n
      \u5b9e\u65bdBGP\u4efb\u64ad\u8def\u7531<\/li>\n
      \u542f\u7528TCP BBR\u62e5\u585e\u63a7\u5236<\/li>\n
      \u4f18\u5316SSL\/TLS\u4f1a\u8bdd\u5904\u7406<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
      \u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528\u4f18\u52bf<\/strong><\/h2>\n
      \u9999\u6e2f\u57fa\u7840\u8bbe\u65bd\u7684\u6280\u672f\u4f18\u52bf\u5305\u62ec\uff1a<\/p>\n
      \n
      \u7f51\u7edc\u67b6\u6784\uff1a\n
      \n
      \u4e0e\u4e3b\u8981\u4e9a\u6d32ISP\u76f4\u63a5\u5bf9\u7b49\u4e92\u8054<\/li>\n
      \u5230\u4e2d\u56fd\u5927\u9646\u5e73\u5747\u5ef6\u8fdf\uff1a20-40\u6beb\u79d2<\/li>\n
      \u591a\u6761\u6d77\u5e95\u5149\u7f06\u8fde\u63a5<\/li>\n
      \u4e00\u7ea7\u8fd0\u8425\u5546\u4e2d\u7acb\u8bbe\u65bd<\/li>\n<\/ul>\n<\/li>\n
      \u57fa\u7840\u8bbe\u65bd\u89c4\u683c\uff1a\n
      \n
      N+1\u7535\u529b\u5197\u4f59<\/li>\n
      \u591a\u7ebf\u8def\u7f51\u7edc\u62d3\u6251<\/li>\n
      DDoS\u7f13\u89e3\u80fd\u529b\uff1a\u9ad8\u8fbe2Tbps<\/li>\n
      99.999%\u8fd0\u884c\u65f6\u95f4SLA\u4fdd\u8bc1<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
      \u9884\u9632\u6027\u76d1\u63a7\u8bbe\u7f6e<\/strong><\/h2>\n
      \u5b9e\u65bd\u4ee5\u4e0b\u76d1\u63a7\u534f\u8bae\u4ee5\u9632\u6b62\u6027\u80fd\u4e0b\u964d\uff1a<\/p>\n
      \n
      \u670d\u52a1\u5668\u76d1\u63a7\uff1a\n
      \r\n # \u914d\u7f6ePrometheus\u76d1\u63a7\r\n prometheus_config:\r\n scrape_interval: 15s\r\n evaluation_interval: 15s\r\n alerting_rules:\r\n - alert: HighCPUUsage\r\n expr: cpu_usage_idle < 20\r\n for: 5m\r\n <\/code><\/pre>\n<\/li>\n
      \u7f51\u7edc\u76d1\u63a7\uff1a\n
      \r\n # \u8bbe\u7f6eSmokeping\u914d\u7f6e\r\n *** Targets ***\r\n probe = FPing\r\n + InternetConnectivity\r\n menu = Internet Connectivity\r\n title = Internet Connectivity\r\n host = 8.8.8.8 1.1.1.1\r\n <\/code><\/pre>\n<\/li>\n<\/ol>\n
      \u6027\u80fd\u4f18\u5316\u6e05\u5355<\/strong><\/h2>\n
      \n
      \u6bcf\u65e5\u4efb\u52a1\uff1a\n
      \n
      \u76d1\u63a7\u9519\u8bef\u65e5\u5fd7\u5f02\u5e38<\/li>\n
      \u68c0\u67e5\u8d44\u6e90\u4f7f\u7528\u8d8b\u52bf<\/li>\n
      \u9a8c\u8bc1\u5907\u4efd\u7cfb\u7edf\u72b6\u6001<\/li>\n
      \u5ba1\u67e5\u5b89\u5168\u8b66\u62a5<\/li>\n<\/ul>\n<\/li>\n
      \u6bcf\u5468\u4efb\u52a1\uff1a\n
      \n
      \u5206\u6790\u6027\u80fd\u6307\u6807<\/li>\n
      \u66f4\u65b0\u76d1\u63a7\u9608\u503c<\/li>\n
      \u4f18\u5316\u6570\u636e\u5e93\u67e5\u8be2<\/li>\n
      \u5ba1\u67e5\u7f51\u7edc\u8def\u7531\u8868<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
      \u7ed3\u8bba<\/strong><\/h2>\n
      \u6709\u6548\u7684\u7f51\u7ad9\u5ef6\u8fdf\u8bca\u65ad\u9700\u8981\u7cfb\u7edf\u5730\u7ed3\u5408\u670d\u52a1\u5668\u914d\u7f6e\u5206\u6790\u548c\u7f51\u7edc\u6545\u969c\u6392\u9664\u3002\u901a\u8fc7\u5b9e\u65bd\u4e0a\u8ff0\u8bca\u65ad\u65b9\u6cd5\u548c\u76d1\u63a7\u5de5\u5177\uff0c\u6280\u672f\u4e13\u4e1a\u4eba\u5458\u53ef\u4ee5\u5feb\u901f\u8bc6\u522b\u548c\u89e3\u51b3\u6027\u80fd\u74f6\u9888\u3002\u8bf7\u8bb0\u4f4f\uff0c\u5b9a\u671f\u6027\u80fd\u4f18\u5316\u548c\u4e3b\u52a8\u76d1\u63a7\u662f\u7ef4\u6301\u6700\u4f73\u7f51\u7ad9\u6027\u80fd\u7684\u5173\u952e\u3002<\/p>\n
      \u5bf9\u4e8e\u5173\u952e\u4e1a\u52a1\u5e94\u7528\uff0c\u8003\u8651\u5229\u7528\u9999\u6e2f\u7684\u6218\u7565\u4f4d\u7f6e\u548c\u5148\u8fdb\u7684\u670d\u52a1\u5668\u79df\u7528\u57fa\u7840\u8bbe\u65bd\u6765\u786e\u4fdd\u6301\u7eed\u7684\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002\u7ed3\u5408\u9002\u5f53\u7684\u8bca\u65ad\u6280\u672f\u548c\u5f3a\u5927\u7684\u670d\u52a1\u5668\u79df\u7528\u89e3\u51b3\u65b9\u6848\u5c06\u6709\u52a9\u4e8e\u7ef4\u6301\u6700\u4f73\u7684\u7f51\u7ad9\u6027\u80fd\u548c\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
      \u5f53\u60a8\u7684\u7f51\u7ad9\u51fa\u73b0\u95f4\u6b47\u6027\u5ef6\u8fdf\u65f6\uff0c\u5bf9\u4e8e\u7ba1\u7406\u6570\u5b57\u57fa\u7840\u8bbe\u65bd\u7684\u6280\u672f\u4e13\u4e1a\u4eba\u5458\u6765\u8bf4\uff0c\u8bc6\u522b\u6839\u672c\u539f\u56e0\u53d8\u5f97\u81f3\u5173\u91cd\u8981\u3002\u7f51\u7ad9\u5ef6\u8fdf\u8bca\u65ad\u9700\u8981\u91c7\u7528\u7cfb\u7edf\u7684\u65b9\u6cd5\u6765\u786e\u5b9a\u662f\u670d\u52a1\u5668\u914d\u7f6e\u8fd8\u662f\u7f51\u7edc\u95ee\u9898\u5bfc\u81f4\u7684\u3002\u672c\u7efc\u5408\u6307\u5357\u5c06\u4e3a\u60a8\u8be6\u7ec6\u4ecb\u7ecd\u4e13\u4e1a\u7684\u8bca\u65ad\u65b9\u6cd5\u548c\u89e3\u51b3\u65b9\u6848\u3002 \u4e86\u89e3\u7f51\u7ad9\u5ef6\u8fdf\u75c7\u72b6 \u5728\u8fdb\u884c\u8bca\u65ad\u4e4b\u524d\uff0c\u5fc5\u987b\u8ba4\u8bc6\u4e0d\u540c\u7c7b\u578b\u7684\u6027\u80fd\u95ee\u9898\uff1a \u9875\u9762\u52a0\u8f7d\u65f6\u95f4\u6162\uff08\u9996\u5b57\u8282\u65f6\u95f4 > 200\u6beb\u79d2\uff09 \u670d\u52a1\u5668\u54cd\u5e94\u5ef6\u8fdf\uff08>500\u6beb\u79d2\uff09 \u6570\u636e\u5e93\u67e5\u8be2\u8d85\u65f6 \u9759\u6001\u5185\u5bb9\u4f20\u8f93\u5ef6\u8fdf API\u7aef\u70b9\u5ef6\u8fdf \u670d\u52a1\u5668\u914d\u7f6e\u5206\u6790 \u8ba9\u6211\u4eec\u4f7f\u7528\u547d\u4ee4\u884c\u5de5\u5177\u548c\u76d1\u63a7\u89e3\u51b3\u65b9\u6848\u6765\u68c0\u67e5\u670d\u52a1\u5668\u7aef\u6307\u6807\uff1a CPU\u4f7f\u7528\u7387\u8bc4\u4f30\uff1a \u8fd0\u884c’top’\u6216’htop’\u8fdb\u884c\u5b9e\u65f6CPU\u76d1\u63a7 \u68c0\u67e5\u8d1f\u8f7d\u5e73\u5747\u503c\uff08\u6700\u4f18\uff1a\u6bcf\u6838\u5fc3 < 1.0\uff09 \u76d1\u63a7\u8fdb\u7a0b\u7ebf\u7a0b\u6a21\u5f0f \u5185\u5b58\u4f7f\u7528\u60c5\u51b5\uff1a \u6267\u884c’free -m’\u68c0\u67e5\u53ef\u7528RAM \u76d1\u63a7\u4ea4\u6362\u7a7a\u95f4\u4f7f\u7528\u6a21\u5f0f \u4f7f\u7528’valgrind’\u5206\u6790\u5185\u5b58\u6cc4\u6f0f \u78c1\u76d8I\/O\u6027\u80fd\uff1a \u5b9e\u65bd’iostat’\u76d1\u63a7 \u68c0\u67e5\u78c1\u76d8\u961f\u5217\u957f\u5ea6 \u6d4b\u91cf\u5199\u5165\/\u8bfb\u53d6\u5ef6\u8fdf \u7f51\u7edc\u8bca\u65ad\u5de5\u5177\u5305 \u7f51\u7edc\u6027\u80fd\u5206\u6790\u9700\u8981\u4f7f\u7528\u4e13\u4e1a\u5de5\u5177\u548c\u65b9\u6cd5\u8fdb\u884c\u590d\u6742\u7684\u5904\u7406\uff1a \u5ef6\u8fdf\u6d4b\u8bd5\uff1a MTR\uff08My TraceRoute\uff09\u9010\u8df3\u5ef6\u8fdf\u5206\u6790 \u4f7f\u7528\u81ea\u5b9a\u4e49\u6570\u636e\u5305\u5927\u5c0f\u7684ICMP\u56de\u663e\u8bf7\u6c42 TCP\u63e1\u624b\u65f6\u95f4\u6d4b\u91cf \u5e26\u5bbd\u76d1\u63a7\uff1a \u4f7f\u7528iperf3\u8fdb\u884c\u541e\u5410\u91cf\u6d4b\u8bd5 \u7f51\u7edc\u63a5\u53e3\u9971\u548c\u5ea6\u68c0\u67e5 QoS\u914d\u7f6e\u9a8c\u8bc1 \u9ad8\u7ea7\u8bca\u65ad\u547d\u4ee4 \u4ee5\u4e0b\u662f\u91cd\u8981\u8bca\u65ad\u547d\u4ee4\u7684\u6280\u672f\u7ec6\u8282\uff1a # \u7f51\u7edc\u5ef6\u8fdf\u68c0\u67e5 mtr -n -r target_host -c 100 # TCP\u8fde\u63a5\u5206\u6790 netstat -nat | grep ESTABLISHED […]<\/p>\n
      Read More…<\/a><\/p>\n","protected":false},"author":2,"featured_media":27519,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4816],"tags":[8956,8540,2208,1718,770],"class_list":["post-27524","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-america-dedicated-server-sc","tag-website-lag-diagnosis-sc","tag-network-troubleshooting-sc","tag-hosting-performance-sc","tag-performance-optimization-sc","tag-server-configuration-sc"],"acf":[],"yoast_head":"\n