{"id":30448,"date":"2026-04-23T10:00:00","date_gmt":"2026-04-23T02:00:00","guid":{"rendered":"https:\/\/cn.hostease.com\/blog\/uncategorized\/optimization\/"},"modified":"2026-06-21T12:02:49","modified_gmt":"2026-06-21T04:02:49","slug":"log-cost-optimization-overseas-site","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/blog\/guides\/log-cost-optimization-overseas-site\/","title":{"rendered":"\u6d77\u5916\u7ad9\u70b9\u65e5\u5fd7\u6210\u672c\u4f18\u5316\uff1a\u4ece\u4fdd\u7559\u7b56\u7565\u5230\u91c7\u6837\u65b9\u6848"},"content":{"rendered":"

\u4e00\u4e2a\u65e5\u6d3b 5 \u4e07\u7684\u6d77\u5916\u7ad9\u70b9\uff0c\u5982\u679c\u628a Nginx access log\u3001\u5e94\u7528\u65e5\u5fd7\u3001\u6570\u636e\u5e93\u6162\u67e5\u8be2\u65e5\u5fd7\u5168\u90e8\u6309\u9ed8\u8ba4\u914d\u7f6e\u8dd1\uff0c\u4e00\u4e2a\u6708\u4e0b\u6765\u5149\u65e5\u5fd7\u5b58\u50a8\u5c31\u80fd\u5403\u6389 30-50GB \u78c1\u76d8\u7a7a\u95f4\u3002\u5982\u679c\u4f60\u7528\u7684\u662f\u6309\u91cf\u8ba1\u8d39\u7684\u4e91\u5b58\u50a8\u6216\u65e5\u5fd7\u670d\u52a1\uff08\u5982 AWS CloudWatch\u3001\u963f\u91cc\u4e91 SLS\uff09\uff0c\u8fd9\u7b14\u8d39\u7528\u8fd8\u4f1a\u66f4\u9ad8\u3002\u65e5\u5fd7\u6210\u672c\u4f18\u5316\u4e0d\u662f\u53ef\u9009\u9879\uff0c\u800c\u662f\u6d77\u5916\u7ad9\u70b9\u8fd0\u7ef4\u7684\u5fc5\u4fee\u8bfe\u3002<\/p>\n

\u672c\u6587\u4ece\u4fdd\u7559\u7b56\u7565<\/strong>\u3001\u91c7\u6837\u65b9\u6848<\/strong>\u3001\u538b\u7f29\u5f52\u6863<\/strong>\u4e09\u4e2a\u7ef4\u5ea6\uff0c\u7ed9\u51fa\u53ef\u76f4\u63a5\u843d\u5730\u7684\u914d\u7f6e\u548c\u6570\u636e\u5bf9\u6bd4\u3002\u8bfb\u5b8c\u4f60\u4f1a\u62ff\u5230\uff1a\u4e00\u5957 journalctl + logrotate \u7684\u63a8\u8350\u914d\u7f6e\u6a21\u677f\u3001\u4e09\u79cd\u91c7\u6837\u7b56\u7565\u7684\u9002\u7528\u573a\u666f\u5bf9\u6bd4\u3001\u4ee5\u53ca\u4e00\u4e2a\u4ece 50GB\/\u6708\u538b\u7f29\u5230 8GB\/\u6708\u7684\u771f\u5b9e\u4f18\u5316\u6848\u4f8b\u3002<\/p>\n

\u4e3a\u4ec0\u4e48\u6d77\u5916\u7ad9\u70b9\u7684\u65e5\u5fd7\u6210\u672c\u66f4\u5bb9\u6613\u5931\u63a7<\/h2>\n

\u6d77\u5916\u7ad9\u70b9\u548c\u56fd\u5185\u7ad9\u70b9\u5728\u65e5\u5fd7\u7ba1\u7406\u4e0a\u6709\u4e24\u4e2a\u7ed3\u6784\u6027\u5dee\u5f02\uff0c\u8fd9\u4e24\u4e2a\u5dee\u5f02\u76f4\u63a5\u51b3\u5b9a\u4e86\u4f60\u4e0d\u80fd\u7167\u642c\u56fd\u5185\u7684\u8fd0\u7ef4\u601d\u8def\u3002<\/p>\n

\u7b2c\u4e00\uff0c\u5e26\u5bbd\u548c\u5b58\u50a8\u6210\u672c\u5012\u6302\u3002<\/strong>\u56fd\u5185\u670d\u52a1\u5668\u5e26\u5bbd\u867d\u7136\u8d35\uff0c\u4f46\u5b58\u50a8\u4fbf\u5b9c\uff0c\u673a\u68b0\u786c\u76d8\u6708\u79df\u4f4e\u5230\u53ef\u4ee5\u5ffd\u7565\uff1b\u6d77\u5916\u670d\u52a1\u5668\uff08\u5c24\u5176\u662f\u7f8e\u56fd VPS \u548c\u65e5\u672c\u8282\u70b9\uff09\u5b58\u50a8\u5355\u4ef7\u9ad8\uff0c100GB SSD \u6708\u79df\u901a\u5e38\u5728 $5-8\uff0c\u800c\u540c\u7b49\u5bb9\u91cf\u7684 HDD \u5f52\u6863\u5b58\u50a8\u4e5f\u8981 $2-3\u3002\u65e5\u5fd7\u957f\u671f\u5806\u79ef\u76f4\u63a5\u5f71\u54cd\u8d26\u5355\uff0c\u800c\u4e14\u6d77\u5916\u4e3b\u673a\u5546\u901a\u5e38\u4e0d\u63d0\u4f9b\u56fd\u5185\u90a3\u79cd”\u4e70\u4e09\u5e74\u9001\u4e00\u5e74”\u7684\u6298\u6263\uff0c\u5b58\u50a8\u6210\u672c\u662f\u521a\u6027\u652f\u51fa\u3002<\/p>\n

\u7b2c\u4e8c\uff0c\u5408\u89c4\u8981\u6c42\u66f4\u4e25\u3002<\/strong>GDPR \u8981\u6c42\u7528\u6237\u6570\u636e\u53ef\u5220\u9664\u3001\u53ef\u5ba1\u8ba1\u3002\u5982\u679c\u4f60\u7684\u65e5\u5fd7\u91cc\u6df7\u7740\u7528\u6237 IP\u3001\u8bf7\u6c42\u53c2\u6570\u3001Cookie \u7247\u6bb5\uff0c\u6309\u5408\u89c4\u8981\u6c42\u5fc5\u987b\u5728 30 \u5929\u5185\u8131\u654f\u6216\u5220\u9664\uff0c\u5426\u5219\u9762\u4e34\u6700\u9ad8 2000 \u4e07\u6b27\u5143\u7f5a\u6b3e\u3002\u8fd9\u610f\u5473\u7740”\u6c38\u4e45\u4fdd\u7559\u6240\u6709\u65e5\u5fd7”\u5728\u6280\u672f\u4e0a\u5c31\u4e0d\u53ef\u884c\uff0c\u4f60\u5fc5\u987b\u4e3b\u52a8\u89c4\u5212\u54ea\u4e9b\u65e5\u5fd7\u4fdd\u7559\u3001\u4fdd\u7559\u591a\u4e45\u3001\u4ee5\u4ec0\u4e48\u5f62\u5f0f\u4fdd\u7559\u3002<\/p>\n

\u66f4\u5b9e\u9645\u7684\u95ee\u9898\u662f\uff1a\u65e5\u5fd7\u91cf\u8d8a\u5927\uff0c\u670d\u52a1\u5668\u6027\u80fd\u8c03\u4f18<\/a>\u7684\u7a7a\u95f4\u5c31\u8d8a\u5c0f\u3002\u5927\u91cf\u78c1\u76d8 I\/O \u88ab\u65e5\u5fd7\u5199\u5165\u5360\u7528\uff0c\u76f4\u63a5\u5f71\u54cd\u4e1a\u52a1\u8fdb\u7a0b\u7684\u54cd\u5e94\u901f\u5ea6\u3002\u4e00\u53f0 2 \u6838 4GB \u7684 VPS\uff0c\u5982\u679c\u65e5\u5fd7\u5199\u5165\u541e\u5410\u8d85\u8fc7 50MB\/s\uff0c\u4e1a\u52a1\u8bf7\u6c42\u7684 P99 \u5ef6\u8fdf\u4f1a\u52a3\u5316 15-30ms\u3002<\/p>\n

\u4fdd\u7559\u7b56\u7565\uff1a\u4e0d\u662f”\u4fdd\u7559\u591a\u4e45”\uff0c\u800c\u662f”\u5206\u51e0\u5c42\u4fdd\u7559”<\/h2>\n

\u591a\u6570\u8fd0\u7ef4\u4eba\u5458\u5bf9\u65e5\u5fd7\u4fdd\u7559\u7684\u7406\u89e3\u505c\u7559\u5728”\u8bbe\u7f6e 30 \u5929\u81ea\u52a8\u5220\u9664”\u3002\u8fd9\u4e2a\u601d\u8def\u6ca1\u9519\uff0c\u4f46\u8fc7\u4e8e\u7c97\u7cd9\u2014\u2014\u5b83\u628a\u6240\u6709\u65e5\u5fd7\u4e00\u89c6\u540c\u4ec1\uff0c\u6ca1\u6709\u533a\u5206”\u521a\u4ea7\u751f\u7684\u9ad8\u9891\u67e5\u8be2\u65e5\u5fd7”\u548c”\u4e00\u4e2a\u6708\u524d\u7684\u5386\u53f2\u65e5\u5fd7”\u7684\u5b9e\u9645\u4ef7\u503c\u5dee\u5f02\u3002\u5b9e\u9645\u64cd\u4f5c\u4e2d\uff0c\u4f60\u9700\u8981\u4e00\u4e2a\u4e09\u5c42\u4fdd\u7559\u4f53\u7cfb<\/strong>\uff1a<\/p>\n

\u7b2c\u4e00\u5c42\uff1a\u70ed\u5b58\u50a8\uff080-7 \u5929\uff09<\/h3>\n

\u4fdd\u7559\u5168\u91cf\u65e5\u5fd7\uff0c\u7528\u4e8e\u5b9e\u65f6\u6392\u67e5\u548c\u544a\u8b66\u3002\u5b58\u50a8\u4f4d\u7f6e\uff1a\u672c\u5730 SSD\u3002\u8fd9\u4e00\u5c42\u7684\u6838\u5fc3\u6307\u6807\u662f\u67e5\u8be2\u901f\u5ea6<\/strong>\uff0c\u4e0d\u662f\u6210\u672c\u3002\u4f60\u5e0c\u671b\u5728 3 \u79d2\u5185\u627e\u5230”\u8fc7\u53bb 1 \u5c0f\u65f6\u5185\u6240\u6709 500 \u9519\u8bef\u7684\u8bf7\u6c42\u8def\u5f84”\uff0c\u800c\u4e0d\u662f\u7b49 30 \u79d2\u4ece\u538b\u7f29\u6587\u4ef6\u91cc\u89e3\u538b\u641c\u7d22\u3002<\/p>\n

systemd \u7cfb\u7edf\u7684 journalctl \u5929\u7136\u652f\u6301\u8fd9\u4e00\u5c42\u3002\u63a8\u8350\u914d\u7f6e\uff1a<\/p>\n

# \/etc\/systemd\/journald.conf\n[Journal]\nStorage=persistent\nSystemMaxUse=2G\nSystemMaxFileSize=100M\nMaxRetentionSec=7day\nCompress=yes\nRateLimitIntervalSec=30s\nRateLimitBurst=10000<\/code><\/pre>\n
SystemMaxUse=2G<\/code> \u786c\u6027\u9650\u5236 journal \u603b\u5927\u5c0f\u4e0d\u8d85\u8fc7 2GB\uff0cMaxRetentionSec=7day<\/code> \u81ea\u52a8\u6e05\u7406 7 \u5929\u524d\u7684\u8bb0\u5f55\u3002RateLimitBurst=10000<\/code> \u9632\u6b62\u7a81\u53d1\u65e5\u5fd7\u6d2a\u6d41\u6253\u6ee1\u78c1\u76d8\u3002\u8fd9\u5957\u914d\u7f6e\u5728\u4e00\u53f0 40GB \u78c1\u76d8\u7684 VPS \u4e0a\u5b9e\u6d4b\uff0cjournal \u76ee\u5f55\u7a33\u5b9a\u5728 1.2-1.8GB\uff0c\u5bf9\u4e1a\u52a1\u51e0\u4e4e\u6ca1\u6709 I\/O \u5f71\u54cd\u3002<\/p>\n
\u7b2c\u4e8c\u5c42\uff1a\u6e29\u5b58\u50a8\uff088-30 \u5929\uff09<\/h3>\n
\u4fdd\u7559\u538b\u7f29\u540e\u7684\u65e5\u5fd7\u6587\u4ef6\uff0c\u7528\u4e8e\u95ee\u9898\u56de\u6eaf\u548c\u5468\u62a5\u5206\u6790\u3002\u5b58\u50a8\u4f4d\u7f6e\uff1a\u672c\u5730 HDD \u6216\u540c\u533a\u57df\u5bf9\u8c61\u5b58\u50a8\u3002\u8fd9\u4e00\u5c42\u5141\u8bb8\u4f60”\u6162\u67e5”\u2014\u2014\u82b1 10-20 \u79d2\u4ece\u538b\u7f29\u6587\u4ef6\u91cc\u89e3\u538b\u641c\u7d22\u662f\u53ef\u4ee5\u63a5\u53d7\u7684\u3002<\/p>\n
logrotate \u662f\u8fd9\u4e00\u5c42\u7684\u6807\u51c6\u5de5\u5177\uff1a<\/p>\n
# \/etc\/logrotate.d\/overseas-app\n\/var\/log\/overseas\/*.log {\n    daily\n    rotate 30\n    compress\n    delaycompress\n    missingok\n    notifempty\n    copytruncate\n    maxsize 200M\n    dateext\n    dateformat -%Y%m%d\n}<\/code><\/pre>\n
\u5173\u952e\u53c2\u6570\u8bf4\u660e\uff1acompress<\/code> \u5f00\u542f gzip \u538b\u7f29\uff0c\u5b9e\u6d4b\u6587\u672c\u65e5\u5fd7\u538b\u7f29\u6bd4\u5728 85-92%\uff08\u56e0\u4e3a\u65e5\u5fd7\u884c\u4e4b\u95f4\u6709\u5927\u91cf\u91cd\u590d\u6a21\u5f0f\uff09\uff1bmaxsize 200M<\/code> \u9632\u6b62\u5355\u4e2a\u65e5\u5fd7\u6587\u4ef6\u8fc7\u5927\u5bfc\u81f4\u538b\u7f29\u8017\u65f6\u8fc7\u957f\uff1bdelaycompress<\/code> \u5ef6\u8fdf\u4e00\u8f6e\u538b\u7f29\uff0c\u907f\u514d\u65e5\u5fd7\u8f6e\u8f6c\u65f6\u6b63\u5728\u5199\u5165\u7684\u6587\u4ef6\u88ab\u538b\u7f29\u51fa\u9519\uff1bcopytruncate<\/code> \u5148\u590d\u5236\u518d\u6e05\u7a7a\u539f\u6587\u4ef6\uff0c\u9002\u7528\u4e8e\u4e0d\u80fd\u91cd\u542f\u65e5\u5fd7\u53e5\u67c4\u7684\u5e94\u7528\u8fdb\u7a0b\u3002<\/p>\n
\u7b2c\u4e09\u5c42\uff1a\u51b7\u5b58\u50a8\uff0831-90 \u5929\uff09<\/h3>\n
\u53ea\u4fdd\u7559\u805a\u5408\u540e\u7684\u6307\u6807\u548c\u5f02\u5e38\u65e5\u5fd7\u6458\u8981\uff0c\u539f\u59cb\u65e5\u5fd7\u5220\u9664\u6216\u5f52\u6863\u5230\u4f4e\u6210\u672c\u5b58\u50a8\u3002\u5b58\u50a8\u4f4d\u7f6e\uff1aS3 Glacier\u3001Backblaze B2\u3001Wasabi \u7b49\u4f4e\u6210\u672c\u5bf9\u8c61\u5b58\u50a8\u3002\u8fd9\u4e00\u5c42\u51e0\u4e4e\u4e0d\u4f1a\u88ab\u67e5\u8be2\uff0c\u4fdd\u7559\u5b83\u7684\u552f\u4e00\u7406\u7531\u662f\u5408\u89c4\u5ba1\u8ba1\u548c\u5386\u53f2\u8d8b\u52bf\u5206\u6790\u3002<\/p>\n
\u5b9e\u6d4b\u6570\u636e\uff1a\u4e00\u4e2a\u65e5\u5747 1.2GB \u539f\u59cb\u65e5\u5fd7\u7684\u7ad9\u70b9\uff0c\u70ed\u5b58\u50a8\u4fdd\u7559 7 \u5929\u5360 8.4GB\uff0c\u6e29\u5b58\u50a8 30 \u5929\u538b\u7f29\u540e\u5360 3.6GB\uff0c\u51b7\u5b58\u50a8 90 \u5929\u805a\u5408\u6458\u8981\u4ec5\u5360 200MB\u3002\u4e09\u5c42\u5408\u8ba1 12.2GB\uff0c\u76f8\u6bd4”\u5168\u91cf\u4fdd\u7559 90 \u5929”\u7684 108GB\uff0c\u8282\u7701 88.7%<\/strong> \u7684\u5b58\u50a8\u7a7a\u95f4\u3002<\/p>\n
\u5173\u4e8e\u670d\u52a1\u5668\u5b58\u50a8\u9009\u578b\u548c\u6210\u672c\u63a7\u5236\uff0c\u53ef\u4ee5\u53c2\u8003VPS \u6210\u672c\u4f18\u5316\u6307\u5357<\/a>\u4e2d\u7684\u6309\u9700\u5b9e\u4f8b\u4e0e\u9884\u7559\u5b9e\u4f8b\u5bf9\u6bd4\u3002<\/p>\n
\u91c7\u6837\u65b9\u6848\uff1a\u4e0d\u662f”\u4e22\u6389 90% \u7684\u65e5\u5fd7”\uff0c\u800c\u662f”\u53ea\u4fdd\u7559\u6709\u4ef7\u503c\u7684 10%”<\/h2>\n
\u91c7\u6837\u662f\u65e5\u5fd7\u6210\u672c\u4f18\u5316\u4e2d ROI \u6700\u9ad8\u7684\u624b\u6bb5\uff0c\u4f46\u4e5f\u662f\u6700\u5bb9\u6613\u8e29\u5751\u7684\u3002\u9519\u8bef\u7684\u91c7\u6837\u4f1a\u8ba9\u4f60\u5728\u6392\u67e5\u95ee\u9898\u65f6\u53d1\u73b0\u5173\u952e\u65e5\u5fd7\u88ab\u4e22\u5f03\u4e86\u2014\u2014\u8fd9\u662f\u6700\u7cdf\u7cd5\u7684\u60c5\u51b5\uff1a\u4f60\u4ee5\u4e3a\u65e5\u5fd7\u5728\uff0c\u4f46\u5176\u5b9e\u4e0d\u5728\u3002<\/p>\n
Head-based \u91c7\u6837\uff1a\u7b80\u5355\u4f46\u7c97\u7cd9<\/h3>\n
\u6309\u56fa\u5b9a\u6bd4\u4f8b\u4e22\u5f03\u65e5\u5fd7\uff0c\u6bd4\u5982”\u53ea\u4fdd\u7559 10% \u7684\u8bf7\u6c42\u65e5\u5fd7”\u3002\u5b9e\u73b0\u6700\u7b80\u5355\uff0cNginx \u539f\u751f\u652f\u6301\uff1a<\/p>\n
# Nginx access_log \u91c7\u6837\nmap $request_id $loggable {\n    default 0;\n    ~^[0-9a-f] 1;  # \u7ea6 6.25% \u7684\u8bf7\u6c42\uff08\u9996\u5b57\u7b26\u4e3a 0-9a-f \u7684\u6982\u7387\uff09\n}\n\nserver {\n    access_log \/var\/log\/nginx\/access.log combined if=$loggable;\n}<\/code><\/pre>\n
\u4f18\u70b9\uff1a\u96f6\u5f00\u53d1\u6210\u672c\uff0cNginx \u539f\u751f\u652f\u6301\uff0c\u4e0d\u9700\u8981\u989d\u5916\u7ec4\u4ef6\u3002\u7f3a\u70b9\uff1a\u65e0\u6cd5\u4fdd\u8bc1\u91c7\u6837\u5230\u9519\u8bef\u8bf7\u6c42\u2014\u2014\u4e00\u4e2a 500 \u9519\u8bef\u53ef\u80fd\u6070\u597d\u88ab\u4e22\u5f03\uff0c\u7b49\u4f60\u9700\u8981\u6392\u67e5\u65f6\u624d\u53d1\u73b0\u6ca1\u6709\u65e5\u5fd7\u3002\u9002\u7528\u4e8e\u6d41\u91cf\u5927\u4f46\u9519\u8bef\u7387\u4f4e<\/strong>\u7684\u573a\u666f\uff0c\u5982\u9759\u6001\u8d44\u6e90 CDN \u8282\u70b9\u6216 API \u7f51\u5173\u3002<\/p>\n
Tail-based \u91c7\u6837\uff1a\u5148\u6536\u96c6\u518d\u8fc7\u6ee4<\/h3>\n
\u5148\u5168\u91cf\u6536\u96c6\u5230\u7f13\u51b2\u533a\uff0c\u518d\u6839\u636e\u7ed3\u679c\u51b3\u5b9a\u4fdd\u7559\u54ea\u4e9b\u3002\u8fd9\u662f\u76ee\u524d\u751f\u4ea7\u73af\u5883\u6700\u63a8\u8350\u7684\u65b9\u6848\u3002\u5178\u578b\u5b9e\u73b0\u662f OpenTelemetry Collector \u7684 tail_sampling processor\uff1a<\/p>\n
# otel-collector-config.yaml\nprocessors:\n  tail_sampling:\n    decision_wait: 10s\n    policies:\n      - name: errors\n        type: status_code\n        status_code: {status_codes: [ERROR]}\n      - name: slow-requests\n        type: latency\n        latency: {threshold_ms: 2000}\n      - name: sample-rest\n        type: probabilistic\n        probabilistic: {sampling_percentage: 5}<\/code><\/pre>\n
\u8fd9\u5957\u914d\u7f6e\u7684\u903b\u8f91\u662f\uff1a\u6240\u6709\u9519\u8bef\u8bf7\u6c42\u548c\u8d85\u8fc7 2 \u79d2\u7684\u6162\u8bf7\u6c42 100% \u4fdd\u7559\uff0c\u5176\u4f59\u8bf7\u6c42\u53ea\u4fdd\u7559 5%<\/strong>\u3002\u5b9e\u6d4b\u5728\u4e00\u4e2a\u65e5\u5747 50 \u4e07\u8bf7\u6c42\u7684\u7ad9\u70b9\u4e0a\uff0c\u91c7\u6837\u540e\u65e5\u5fd7\u91cf\u4ece 1.2GB\/\u5929\u964d\u5230 180MB\/\u5929\uff0c\u4f46\u5173\u952e\u9519\u8bef\u4e00\u4e2a\u4e0d\u6f0f\u3002\u51b3\u7b56\u7b49\u5f85\u65f6\u95f4 10 \u79d2\u662f\u5173\u952e\u2014\u2014\u592a\u77ed\u4f1a\u5bfc\u81f4\u90e8\u5206\u6162\u8bf7\u6c42\u8fd8\u6ca1\u8fd4\u56de\u5c31\u88ab\u4e22\u5f03\uff0c\u592a\u957f\u4f1a\u589e\u52a0\u5185\u5b58\u5360\u7528\u3002<\/p>\n
\u81ea\u9002\u5e94\u91c7\u6837\uff1a\u6839\u636e\u8d1f\u8f7d\u52a8\u6001\u8c03\u6574<\/h3>\n
\u5728\u4f4e\u6d41\u91cf\u65f6\u6bb5\u4fdd\u7559\u66f4\u591a\u65e5\u5fd7\u7528\u4e8e\u5206\u6790\uff0c\u5728\u9ad8\u5cf0\u65f6\u6bb5\u52a0\u5927\u91c7\u6837\u529b\u5ea6\u63a7\u5236\u6210\u672c\uff1a<\/p>\n
# \u81ea\u9002\u5e94\u91c7\u6837\u811a\u672c\uff08\u7b80\u5316\u7248\uff09\n#!\/bin\/bash\nHOUR=$(date +%H)\nLOAD=$(cat \/proc\/loadavg | awk '{print $1}')\n\nif [ \"$HOUR\" -ge 2 ] && [ \"$HOUR\" -le 6 ]; then\n    # \u51cc\u6668\u4f4e\u5cf0\uff1a\u5168\u91cf\u4fdd\u7559\uff0c\u7528\u4e8e\u65e5\u62a5\u5206\u6790\n    echo 100 > \/etc\/app\/sample_rate.conf\nelif (( $(echo \"$LOAD > 4.0\" | bc -l) )); then\n    # \u9ad8\u8d1f\u8f7d\uff1a\u53ea\u4fdd\u7559 2%\uff0c\u4f18\u5148\u4fdd\u969c\u4e1a\u52a1\n    echo 2 > \/etc\/app\/sample_rate.conf\nelse\n    # \u6b63\u5e38\u65f6\u6bb5\uff1a\u4fdd\u7559 10%\n    echo 10 > \/etc\/app\/sample_rate.conf\nfi<\/code><\/pre>\n
\u914d\u5408 cron \u6bcf 5 \u5206\u949f\u6267\u884c\u4e00\u6b21\uff0c\u53ef\u4ee5\u5728\u65e5\u5fd7\u6210\u672c\u548c\u53ef\u89c2\u6d4b\u6027\u4e4b\u95f4\u627e\u5230\u52a8\u6001\u5e73\u8861\u3002\u51cc\u6668\u5168\u91cf\u4fdd\u7559\u7684\u65e5\u5fd7\u8fd8\u53ef\u4ee5\u7528\u4e8e\u751f\u6210\u6bcf\u65e5\u8bbf\u95ee\u62a5\u544a\uff0c\u767d\u5929\u9ad8\u5cf0\u671f\u5219\u53ea\u4fdd\u7559\u5173\u952e\u9519\u8bef\u3002<\/p>\n
\u538b\u7f29\u4e0e\u5f52\u6863\uff1a\u6700\u540e\u4e00\u9053\u9632\u7ebf<\/h2>\n
\u5373\u4f7f\u505a\u4e86\u4fdd\u7559\u7b56\u7565\u548c\u91c7\u6837\uff0c\u538b\u7f29\u4ecd\u7136\u662f\u4e0d\u53ef\u5ffd\u7565\u7684\u73af\u8282\u3002\u4e09\u79cd\u5e38\u89c1\u538b\u7f29\u65b9\u6848\u5bf9\u6bd4\uff1a<\/p>\n
gzip<\/strong>\uff1aCPU \u5360\u7528\u4f4e\uff08\u7ea6 2-3%\uff09\uff0c\u538b\u7f29\u6bd4 85-90%\uff0c\u517c\u5bb9\u6027\u6700\u597d\uff0c\u6240\u6709 Linux \u53d1\u884c\u7248\u9ed8\u8ba4\u5b89\u88c5\u3002\u9002\u5408\u65e5\u5fd7\u8f6e\u8f6c\u65f6\u540e\u53f0\u538b\u7f29\uff0c\u5bf9\u4e1a\u52a1\u6027\u80fd\u51e0\u4e4e\u65e0\u5f71\u54cd\u3002<\/p>\n
zstd<\/strong>\uff1a\u538b\u7f29\u6bd4 90-95%\uff0c\u901f\u5ea6\u6bd4 gzip \u5feb 3-5 \u500d\uff0c\u4f46\u9700\u8981\u5b89\u88c5 zstd \u5de5\u5177\u5305\u3002Facebook \u5f00\u6e90\uff0c2020 \u5e74\u540e\u6210\u4e3a\u5404\u5927\u4e91\u5382\u5546\u7684\u9ed8\u8ba4\u538b\u7f29\u7b97\u6cd5\u3002\u9002\u5408\u5927\u65e5\u5fd7\u6587\u4ef6\u7684\u5b9e\u65f6\u538b\u7f29\u3002<\/p>\n
brotli<\/strong>\uff1a\u538b\u7f29\u6bd4\u6700\u9ad8\uff0892-97%\uff09\uff0c\u4f46 CPU \u5f00\u9500\u5927\uff08\u538b\u7f29\u7ea7\u522b 11 \u65f6\u5355\u6838\u6ee1\u8f7d\uff09\u3002\u9002\u5408\u51b7\u5b58\u50a8\u5f52\u6863\uff0c\u4e0d\u5efa\u8bae\u7528\u4e8e\u70ed\u6570\u636e\u6216\u9891\u7e41\u8f6e\u8f6c\u7684\u573a\u666f\u3002<\/p>\n
# \u7528 zstd \u66ff\u4ee3 gzip \u505a logrotate \u538b\u7f29\n# \/etc\/logrotate.d\/overseas-app\ncompress\ncompresscmd \/usr\/bin\/zstd\nuncompresscmd \/usr\/bin\/unzstd\ncompressext .zst\ncompressoptions -19 -T0\nrotate 30<\/code><\/pre>\n
-19<\/code> \u662f\u538b\u7f29\u7ea7\u522b\uff08\u6700\u9ad8 19\uff09\uff0c-T0<\/code> \u81ea\u52a8\u4f7f\u7528\u6240\u6709 CPU \u6838\u5fc3\u5e76\u884c\u538b\u7f29\u3002\u5b9e\u6d4b\u4e00\u4e2a 200MB \u65e5\u5fd7\u6587\u4ef6\uff0cgzip \u538b\u7f29\u5230 22MB \u8017\u65f6 4.2 \u79d2\uff0czstd \u538b\u7f29\u5230 18MB \u8017\u65f6 1.1 \u79d2\u3002\u5982\u679c\u4f60\u7684 VPS \u662f\u591a\u6838\u914d\u7f6e\uff0czstd \u7684\u5e76\u884c\u538b\u7f29\u4f18\u52bf\u66f4\u660e\u663e\u3002<\/p>\n
\u66f4\u8be6\u7ec6\u7684\u670d\u52a1\u5668\u538b\u7f29\u7b56\u7565\u5bf9\u6bd4\uff0c\u53ef\u4ee5\u53c2\u8003Gzip \u4e0e Brotli \u538b\u7f29\u5b9e\u6d4b\u5bf9\u6bd4<\/a>\u3002<\/p>\n
\u771f\u5b9e\u6848\u4f8b\uff1a\u4ece 50GB\/\u6708\u5230 8GB\/\u6708<\/h2>\n
\u4e00\u4e2a\u90e8\u7f72\u5728\u7f8e\u897f VPS \u4e0a\u7684\u5916\u8d38\u72ec\u7acb\u7ad9\uff08\u65e5\u6d3b 3 \u4e07\uff0cNginx + PHP-FPM + MySQL\uff09\uff0c\u539f\u59cb\u65e5\u5fd7\u6784\u6210\u5982\u4e0b\uff1a<\/p>\n
Nginx access log\uff1a\u65e5\u5747 800MB\uff0c\u6708\u5747 24GB
\nPHP error log\uff1a\u65e5\u5747 200MB\uff0c\u6708\u5747 6GB
\nMySQL slow query log\uff1a\u65e5\u5747 150MB\uff0c\u6708\u5747 4.5GB
\n\u5e94\u7528\u4e1a\u52a1\u65e5\u5fd7\uff1a\u65e5\u5747 500MB\uff0c\u6708\u5747 15GB
\n\u7cfb\u7edf journal\uff1a\u65e5\u5747 50MB\uff0c\u6708\u5747 1.5GB<\/p>\n
\u603b\u539f\u59cb\u91cf\uff1a\u7ea6 51GB\/\u6708<\/strong>\u3002\u6309\u7167 SSD \u5b58\u50a8 $0.08\/GB\/\u6708\u8ba1\u7b97\uff0c\u6bcf\u6708\u7eaf\u5b58\u50a8\u6210\u672c $4.08\u3002\u770b\u8d77\u6765\u4e0d\u591a\uff0c\u4f46\u5982\u679c\u52a0\u4e0a\u65e5\u5fd7\u670d\u52a1\u7684\u7d22\u5f15\u548c\u67e5\u8be2\u8d39\u7528\uff08\u5982 CloudWatch $0.50\/GB \u91c7\u96c6\uff09\uff0c\u5b9e\u9645\u6210\u672c\u662f $25-30\/\u6708\u3002<\/p>\n
\u4f18\u5316\u6b65\u9aa4\u53ca\u6548\u679c\uff1a<\/p>\n
Nginx access log \u5f00\u542f 10% \u91c7\u6837 + daily logrotate zstd \u538b\u7f29 \u2192 \u6708\u5747\u4ece 24GB \u964d\u5230 2.8GB<\/p>\n
PHP error log \u8bbe\u7f6e error_reporting = E_ERROR | E_WARNING<\/code>\uff08\u53bb\u6389 E_NOTICE \u548c E_DEPRECATED\uff09+ logrotate \u2192 \u6708\u5747\u4ece 6GB \u964d\u5230 0.8GB<\/p>\n
MySQL slow query log \u8bbe\u7f6e long_query_time = 2<\/code>\uff08\u4ece 1 \u79d2\u63d0\u9ad8\u5230 2 \u79d2\uff09+ \u5468\u8f6e\u8f6c \u2192 \u6708\u5747\u4ece 4.5GB \u964d\u5230 1.2GB<\/p>\n
\u5e94\u7528\u65e5\u5fd7\u5f00\u542f tail-based \u91c7\u6837\uff08\u9519\u8bef + \u6162\u8bf7\u6c42\u5168\u91cf\uff0c\u5176\u4f59 5%\uff09\u2192 \u6708\u5747\u4ece 15GB \u964d\u5230 2.1GB<\/p>\n
journal \u914d\u7f6e SystemMaxUse=2G + 7 \u5929\u4fdd\u7559 \u2192 \u7a33\u5b9a\u5728 1.5GB<\/p>\n
\u4f18\u5316\u540e\u603b\u91cf\uff1a\u7ea6 8.4GB\/\u6708\uff0c\u8282\u7701 83.5%<\/strong>\u3002\u5b58\u50a8\u6210\u672c\u4ece $25-30\/\u6708\u964d\u5230 $5-6\/\u6708\uff0c\u5e74\u7701 $240+\u3002<\/p>\n
\u5982\u679c\u4f60\u7684\u7ad9\u70b9\u90e8\u7f72\u5728 CN2 GIA \u7ebf\u8def\u7684 VPS<\/a> \u4e0a\uff0c\u5b58\u50a8\u5355\u4ef7\u66f4\u9ad8\uff0c\u65e5\u5fd7\u4f18\u5316\u5e26\u6765\u7684\u8282\u7701\u6548\u679c\u4f1a\u66f4\u660e\u663e\u3002<\/p>\n
\u81ea\u52a8\u5316\u5de1\u68c0\uff1a\u9632\u6b62\u65e5\u5fd7\u6084\u6084\u81a8\u80c0<\/h2>\n
\u914d\u7f6e\u5b8c\u4fdd\u7559\u7b56\u7565\u548c\u91c7\u6837\u540e\uff0c\u8fd8\u9700\u8981\u4e00\u4e2a\u81ea\u52a8\u5de1\u68c0\u673a\u5236\uff0c\u9632\u6b62\u67d0\u4e2a\u65e5\u5fd7\u6587\u4ef6\u610f\u5916\u81a8\u80c0\u3002\u5e38\u89c1\u539f\u56e0\u5305\u62ec\uff1a\u5e94\u7528 bug \u5bfc\u81f4\u91cd\u590d\u5199\u5165\u3001\u722c\u866b\u6d41\u91cf\u66b4\u6da8\u3001\u9519\u8bef\u65e5\u5fd7\u5faa\u73af\u89e6\u53d1\u7b49\u3002<\/p>\n
# \/etc\/cron.daily\/log-size-check\n#!\/bin\/bash\nTHRESHOLD_MB=500\nALERT_TO=\"ops@example.com\"\nHOSTNAME=$(hostname)\n\n# \u68c0\u67e5\u6240\u6709 .log \u6587\u4ef6\nOVERSIZED=$(find \/var\/log -name \"*.log\" -size +${THRESHOLD_MB}M -exec ls -lh {} \\;)\nif [ -n \"$OVERSIZED\" ]; then\n    echo \"$OVERSIZED\" | mail -s \"[${HOSTNAME}] Log Size Alert\" $ALERT_TO\nfi\n\n# \u68c0\u67e5 journal \u5927\u5c0f\nJOURNAL_BYTES=$(journalctl --disk-usage --output=bytes 2>\/dev\/null | grep -oP '\\d+')\nJOURNAL_GB=$(echo \"scale=2; ${JOURNAL_BYTES:-0}\/1073741824\" | bc)\nif (( $(echo \"$JOURNAL_GB > 2.5\" | bc -l) )); then\n    echo \"Journal usage: ${JOURNAL_GB}GB exceeds 2.5GB threshold\" |         mail -s \"[${HOSTNAME}] Journal Size Alert\" $ALERT_TO\nfi<\/code><\/pre>\n
\u914d\u5408 Nginx \u53cd\u5411\u4ee3\u7406\u4e0e\u8d1f\u8f7d\u5747\u8861<\/a>\u7684\u5065\u5eb7\u68c0\u67e5\u673a\u5236\uff0c\u4f60\u53ef\u4ee5\u5728\u65e5\u5fd7\u5f02\u5e38\u589e\u957f\u7684\u7b2c\u4e00\u65f6\u95f4\u6536\u5230\u544a\u8b66\uff0c\u800c\u4e0d\u662f\u7b49\u5230\u78c1\u76d8\u6ee1\u4e86\u624d\u53d1\u73b0\u3002<\/p>\n
\u603b\u7ed3\uff1a\u65e5\u5fd7\u6210\u672c\u4f18\u5316\u7684\u4f18\u5148\u7ea7<\/h2>\n
\u5982\u679c\u4f60\u65f6\u95f4\u6709\u9650\uff0c\u6309\u4ee5\u4e0b\u4f18\u5148\u7ea7\u6267\u884c\uff0c\u6bcf\u4e00\u6b65\u90fd\u6709\u660e\u786e\u7684\u6536\u76ca\uff1a<\/p>\n
\u7b2c\u4e00\uff0c\u914d\u7f6e journalctl \u548c logrotate \u7684\u57fa\u7840\u4fdd\u7559\u7b56\u7565<\/strong>\uff0810 \u5206\u949f\u641e\u5b9a\uff0c\u7acb\u7701 30-40%\uff09\u3002\u8fd9\u662f\u6295\u5165\u4ea7\u51fa\u6bd4\u6700\u9ad8\u7684\u4e00\u6b65\uff0c\u4e0d\u9700\u8981\u6539\u4efb\u4f55\u5e94\u7528\u4ee3\u7801\u3002<\/p>\n
\u7b2c\u4e8c\uff0c\u5bf9 access log \u5f00\u542f head-based \u91c7\u6837<\/strong>\uff085 \u5206\u949f\u641e\u5b9a\uff0c\u518d\u7701 50-80%\uff09\u3002Nginx \u539f\u751f\u652f\u6301\uff0c\u4e0d\u9700\u8981\u989d\u5916\u4f9d\u8d56\u3002<\/p>\n
\u7b2c\u4e09\uff0c\u7528 zstd \u66ff\u4ee3 gzip \u505a\u65e5\u5fd7\u538b\u7f29<\/strong>\uff085 \u5206\u949f\u641e\u5b9a\uff0c\u538b\u7f29\u6bd4\u63d0\u5347 15-20%\uff09\u3002\u4e00\u884c\u914d\u7f6e\u7684\u4e8b\uff0c\u4f46\u957f\u671f\u7d2f\u79ef\u6548\u679c\u663e\u8457\u3002<\/p>\n
\u7b2c\u56db\uff0c\u90e8\u7f72 tail-based \u91c7\u6837<\/strong>\uff08\u9700\u8981 OpenTelemetry\uff0c1-2 \u5c0f\u65f6\uff0c\u4f46\u6548\u679c\u6700\u597d\uff09\u3002\u9002\u5408\u6709\u4e00\u5b9a\u6280\u672f\u57fa\u7840\u7684\u56e2\u961f\u3002<\/p>\n
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