{"id":764,"date":"2026-02-23T21:53:34","date_gmt":"2026-02-23T13:53:34","guid":{"rendered":"https:\/\/blog.itsmygo.uk\/2026\/02\/23\/%e3%80%90%e7%b3%bb%e7%b5%b1%e8%a8%ad%e8%a8%88-30-%e6%a6%82%e5%bf%b5%e3%80%9103-%e7%b3%bb%e7%b5%b1%e6%93%b4%e5%b1%95%e8%88%87%e8%b2%a0%e8%bc%89%e5%9d%87%e8%a1%a1-%e7%95%b6%e4%b8%80%e5%8f%b0\/"},"modified":"2026-02-23T21:53:34","modified_gmt":"2026-02-23T13:53:34","slug":"%e3%80%90%e7%b3%bb%e7%b5%b1%e8%a8%ad%e8%a8%88-30-%e6%a6%82%e5%bf%b5%e3%80%9103-%e7%b3%bb%e7%b5%b1%e6%93%b4%e5%b1%95%e8%88%87%e8%b2%a0%e8%bc%89%e5%9d%87%e8%a1%a1-%e7%95%b6%e4%b8%80%e5%8f%b0","status":"publish","type":"post","link":"https:\/\/blog.itsmygo.uk\/wordpress\/2026\/02\/23\/%e3%80%90%e7%b3%bb%e7%b5%b1%e8%a8%ad%e8%a8%88-30-%e6%a6%82%e5%bf%b5%e3%80%9103-%e7%b3%bb%e7%b5%b1%e6%93%b4%e5%b1%95%e8%88%87%e8%b2%a0%e8%bc%89%e5%9d%87%e8%a1%a1-%e7%95%b6%e4%b8%80%e5%8f%b0\/","title":{"rendered":"\u3010\u7cfb\u7d71\u8a2d\u8a08 30 \u6982\u5ff5\u3011#03 \u7cfb\u7d71\u64f4\u5c55\u8207\u8ca0\u8f09\u5747\u8861 \u2014 \u7576\u4e00\u53f0\u4f3a\u670d\u5668\u4e0d\u5920\u7528"},"content":{"rendered":"\n<div id=\"quiz-9786c56c\">\n<style>\n#quiz-9786c56c .question {\n        background: white;\n        border-radius: 8px;\n        padding: 20px;\n        margin: 20px 0;\n        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);\n      }#quiz-9786c56c .question h3 {\n        margin-top: 0;\n        color: #333;\n      }#quiz-9786c56c .options {\n        list-style: none;\n        padding: 0;\n      }#quiz-9786c56c .options li {\n        padding: 12px 15px;\n        margin: 8px 0;\n        border: 2px solid #ddd;\n        border-radius: 6px;\n        cursor: pointer;\n        transition: all 0.2s;\n      }#quiz-9786c56c .options li:hover:not(.disabled) {\n        border-color: #4caf50;\n        background: #f0fff0;\n      }#quiz-9786c56c .options li.correct {\n        border-color: #4caf50;\n        background: #e8f5e9;\n      }#quiz-9786c56c .options li.wrong {\n        border-color: #f44336;\n        background: #ffebee;\n      }#quiz-9786c56c .options li.disabled {\n        cursor: default;\n        opacity: 0.7;\n      }#quiz-9786c56c .options li.show-answer {\n        border-color: #4caf50;\n        background: #e8f5e9;\n      }#quiz-9786c56c .feedback {\n        margin-top: 15px;\n        padding: 12px;\n        border-radius: 6px;\n        display: none;\n      }#quiz-9786c56c .feedback.correct {\n        background: #e8f5e9;\n        color: #2e7d32;\n        display: block;\n      }#quiz-9786c56c .feedback.wrong {\n        background: #ffebee;\n        color: #c62828;\n        display: block;\n      }#quiz-9786c56c .score {\n        text-align: center;\n        font-size: 1.5em;\n        padding: 20px;\n        background: white;\n        border-radius: 8px;\n        margin-top: 20px;\n      }#quiz-9786c56c .code-block {\n        background: #1e1e1e;\n        color: #d4d4d4;\n        padding: 14px;\n        border-radius: 6px;\n        font-family: \"Monaco\", \"Consolas\", \"Courier New\", monospace;\n        font-size: 0.9em;\n        overflow-x: auto;\n        margin: 12px 0;\n        white-space: pre-wrap;\n      }\n<\/style>\n<h1>\u6e2c\u9a57\uff1a\u7cfb\u7d71\u64f4\u5c55\u8207\u8ca0\u8f09\u5747\u8861<\/h1>\n    <p>\u5171 5 \u984c\uff0c\u9ede\u9078\u7b54\u6848\u5f8c\u6703\u7acb\u5373\u986f\u793a\u7d50\u679c<\/p>\n\n    <div class=\"question\" id=\"q1\">\n      <h3>1. Vertical Scaling\uff08\u5782\u76f4\u64f4\u5c55\uff09\u7684\u505a\u6cd5\u662f\u4ec0\u9ebc\uff1f<\/h3>\n      <ul class=\"options\">\n        <li onclick=\"checkAnswer(1, 'A', 'B')\">A. \u589e\u52a0\u66f4\u591a\u53f0\u4f3a\u670d\u5668\u4f86\u5206\u64d4\u5de5\u4f5c\u91cf<\/li>\n        <li onclick=\"checkAnswer(1, 'B', 'B')\">B. \u5347\u7d1a\u73fe\u6709\u4f3a\u670d\u5668\u7684 CPU\u3001RAM \u7b49\u786c\u9ad4\u898f\u683c<\/li>\n        <li onclick=\"checkAnswer(1, 'C', 'B')\">C. \u5728\u4f3a\u670d\u5668\u524d\u9762\u52a0\u4e00\u500b Load Balancer<\/li>\n        <li onclick=\"checkAnswer(1, 'D', 'B')\">D. \u5c07\u61c9\u7528\u7a0b\u5f0f\u6539\u5beb\u70ba\u5206\u6563\u5f0f\u67b6\u69cb<\/li>\n      <\/ul>\n      <div class=\"feedback\" id=\"fb1\"><\/div>\n    <\/div>\n\n    <div class=\"question\" id=\"q2\">\n      <h3>2. \u6c34\u5e73\u64f4\u5c55\uff08Horizontal Scaling\uff09\u76f8\u8f03\u65bc\u5782\u76f4\u64f4\u5c55\uff0c\u6700\u5927\u7684\u512a\u52e2\u662f\u4ec0\u9ebc\uff1f<\/h3>\n      <ul class=\"options\">\n        <li onclick=\"checkAnswer(2, 'A', 'C')\">A. \u67b6\u69cb\u6700\u7c21\u55ae\uff0c\u4e0d\u9700\u8981\u4fee\u6539\u7a0b\u5f0f\u78bc<\/li>\n        <li onclick=\"checkAnswer(2, 'B', 'C')\">B. \u4e0d\u9700\u8981\u8655\u7406\u8cc7\u6599\u4e00\u81f4\u6027\u7684\u554f\u984c<\/li>\n        <li onclick=\"checkAnswer(2, 'C', 'C')\">C. \u7406\u8ad6\u4e0a\u6c92\u6709\u64f4\u5c55\u4e0a\u9650\uff0c\u4e14\u63d0\u4f9b\u5197\u9918\u80fd\u529b\uff08\u4e00\u53f0\u639b\u4e86\u9084\u6709\u5176\u4ed6\u53f0\uff09<\/li>\n        <li onclick=\"checkAnswer(2, 'D', 'C')\">D. \u6210\u672c\u4e00\u5b9a\u6bd4\u5782\u76f4\u64f4\u5c55\u4f4e<\/li>\n      <\/ul>\n      <div class=\"feedback\" id=\"fb2\"><\/div>\n    <\/div>\n\n    <div class=\"question\" id=\"q3\">\n      <h3>3. Load Balancer \u4f7f\u7528 Round Robin \u6f14\u7b97\u6cd5\u6642\uff0c\u8acb\u6c42\u662f\u5982\u4f55\u5206\u914d\u7684\uff1f<\/h3>\n      <ul class=\"options\">\n        <li onclick=\"checkAnswer(3, 'A', 'D')\">A. \u6839\u64da Client \u7684 IP \u4f4d\u5740\u56fa\u5b9a\u5206\u914d\u5230\u540c\u4e00\u53f0\u4f3a\u670d\u5668<\/li>\n        <li onclick=\"checkAnswer(3, 'B', 'D')\">B. \u512a\u5148\u5206\u914d\u7d66\u76ee\u524d\u9023\u7dda\u6578\u6700\u5c11\u7684\u4f3a\u670d\u5668<\/li>\n        <li onclick=\"checkAnswer(3, 'C', 'D')\">C. \u96a8\u6a5f\u9078\u64c7\u4e00\u53f0\u4f3a\u670d\u5668\u8655\u7406\u8acb\u6c42<\/li>\n        <li onclick=\"checkAnswer(3, 'D', 'D')\">D. \u4f9d\u5e8f\u8f2a\u6d41\u5206\u914d\u7d66\u6bcf\u53f0\u4f3a\u670d\u5668\uff0c\u4e00\u4eba\u4e00\u6b21<\/li>\n      <\/ul>\n      <div class=\"feedback\" id=\"fb3\"><\/div>\n    <\/div>\n\n    <div class=\"question\" id=\"q4\">\n      <h3>4. \u6c34\u5e73\u64f4\u5c55\u5f8c\uff0c\u5982\u679c\u4f7f\u7528\u8005\u767b\u5165\u72c0\u614b\uff08Session\uff09\u5b58\u5728\u4f3a\u670d\u5668\u8a18\u61b6\u9ad4\u88e1\uff0c\u6703\u767c\u751f\u4ec0\u9ebc\u554f\u984c\uff1f<\/h3>\n      <ul class=\"options\">\n        <li onclick=\"checkAnswer(4, 'A', 'B')\">A. \u6240\u6709\u4f3a\u670d\u5668\u6703\u81ea\u52d5\u540c\u6b65 Session \u8cc7\u8a0a<\/li>\n        <li onclick=\"checkAnswer(4, 'B', 'B')\">B. \u4f7f\u7528\u8005\u7684\u4e0b\u4e00\u500b\u8acb\u6c42\u5982\u679c\u88ab\u9001\u5230\u4e0d\u540c\u4f3a\u670d\u5668\uff0c\u8a72\u4f3a\u670d\u5668\u4e0d\u77e5\u9053\u4f7f\u7528\u8005\u5df2\u767b\u5165<\/li>\n        <li onclick=\"checkAnswer(4, 'C', 'B')\">C. Load Balancer \u6703\u81ea\u52d5\u5c07 Session \u50b3\u905e\u7d66\u6240\u6709\u4f3a\u670d\u5668<\/li>\n        <li onclick=\"checkAnswer(4, 'D', 'B')\">D. \u4f7f\u7528\u8005\u9700\u8981\u5728\u6bcf\u53f0\u4f3a\u670d\u5668\u4e0a\u5206\u5225\u767b\u5165<\/li>\n      <\/ul>\n      <div class=\"feedback\" id=\"fb4\"><\/div>\n    <\/div>\n\n    <div class=\"question\" id=\"q5\">\n      <h3>5. \u4ee5\u4e0b Nginx \u8a2d\u5b9a\u7247\u6bb5\u7684\u4f5c\u7528\u662f\u4ec0\u9ebc\uff1f<\/h3>\n      <div class=\"code-block\">upstream my_app {\n    least_conn;\n    server 192.168.1.10:8080;\n    server 192.168.1.11:8080;\n    server 192.168.1.12:8080;\n}<\/div>\n      <ul class=\"options\">\n        <li onclick=\"checkAnswer(5, 'A', 'C')\">A. \u5b9a\u7fa9\u4e09\u53f0\u4f3a\u670d\u5668\uff0c\u4f7f\u7528 Round Robin \u8f2a\u6d41\u5206\u914d\u8acb\u6c42<\/li>\n        <li onclick=\"checkAnswer(5, 'B', 'C')\">B. \u5b9a\u7fa9\u4e09\u53f0\u4f3a\u670d\u5668\uff0c\u6839\u64da Client IP \u56fa\u5b9a\u5206\u914d\u5230\u540c\u4e00\u53f0<\/li>\n        <li onclick=\"checkAnswer(5, 'C', 'C')\">C. \u5b9a\u7fa9\u4e09\u53f0\u4f3a\u670d\u5668\uff0c\u5c07\u65b0\u8acb\u6c42\u5206\u914d\u7d66\u76ee\u524d\u9023\u7dda\u6578\u6700\u5c11\u7684\u90a3\u53f0<\/li>\n        <li onclick=\"checkAnswer(5, 'D', 'C')\">D. \u5b9a\u7fa9\u4e09\u53f0\u4f3a\u670d\u5668\uff0c\u96a8\u6a5f\u9078\u64c7\u4e00\u53f0\u4f86\u8655\u7406\u6bcf\u500b\u8acb\u6c42<\/li>\n      <\/ul>\n      <div class=\"feedback\" id=\"fb5\"><\/div>\n    <\/div>\n\n    <div class=\"score\" id=\"score\" style=\"display:none;\"><\/div>\n<script>\n\n      let answered = 0;\n      let correct = 0;\n      const total = 5;\n      const explanations = {\n        1: \"\u5782\u76f4\u64f4\u5c55\u5c31\u662f\u628a\u73fe\u6709\u7684\u90a3\u53f0\u4f3a\u670d\u5668\u5347\u7d1a\uff0c\u8b93\u5b83\u66f4\u5f37 \u2014\u2014 \u5347\u7d1a CPU\u3001RAM\u3001\u5132\u5b58\u7a7a\u9593\u7b49\u786c\u9ad4\u898f\u683c\u3002\u4e0d\u6539\u67b6\u69cb\u3001\u4e0d\u6539\u7a0b\u5f0f\u78bc\uff0c\u53ea\u662f\u628a\u6a5f\u5668\u5f9e\u300c\u5c0f\u53f0\u300d\u63db\u6210\u300c\u5927\u53f0\u300d\u3002\u589e\u52a0\u66f4\u591a\u53f0\u4f3a\u670d\u5668\u662f\u6c34\u5e73\u64f4\u5c55\u7684\u505a\u6cd5\u3002\",\n        2: \"\u6c34\u5e73\u64f4\u5c55\u6700\u5927\u7684\u512a\u52e2\u662f\u7406\u8ad6\u4e0a\u6c92\u6709\u64f4\u5c55\u4e0a\u9650\uff08\u6a5f\u5668\u53ef\u4ee5\u4e00\u76f4\u52a0\uff09\uff0c\u4e14\u63d0\u4f9b\u5197\u9918\u80fd\u529b\uff08\u4e00\u53f0\u639b\u4e86\u9084\u6709\u5176\u4ed6\u53f0\u9802\u8457\uff09\u3002\u300c\u67b6\u69cb\u7c21\u55ae\u4e0d\u9700\u6539\u7a0b\u5f0f\u300d\u662f\u5782\u76f4\u64f4\u5c55\u7684\u512a\u9ede\uff0c\u800c\u6c34\u5e73\u64f4\u5c55\u53cd\u800c\u9700\u8981\u8655\u7406\u8cc7\u6599\u4e00\u81f4\u6027\u554f\u984c\uff0c\u67b6\u69cb\u66f4\u8907\u96dc\u3002\",\n        3: \"Round Robin \u5c31\u50cf\u767c\u64b2\u514b\u724c\u4e00\u6a23\uff0c\u4f9d\u5e8f\u8f2a\u6d41\u5206\u914d\uff1a\u8acb\u6c42 1 \u7d66 Server 1\u3001\u8acb\u6c42 2 \u7d66 Server 2\u3001\u8acb\u6c42 3 \u7d66 Server 3\uff0c\u7136\u5f8c\u56de\u5230 Server 1 \u7e7c\u7e8c\u3002\u6839\u64da IP \u56fa\u5b9a\u5206\u914d\u662f IP Hash\uff0c\u5206\u7d66\u9023\u7dda\u6700\u5c11\u7684\u662f Least Connections\u3002\",\n        4: \"\u9019\u662f\u6c34\u5e73\u64f4\u5c55\u7684\u7d93\u5178\u554f\u984c\u3002\u7576 Session \u5b58\u5728 Server 1 \u7684\u8a18\u61b6\u9ad4\u88e1\uff0c\u4f7f\u7528\u8005\u7684\u4e0b\u4e00\u500b\u8acb\u6c42\u5982\u679c\u88ab Load Balancer \u9001\u5230 Server 2\uff0cServer 2 \u4e26\u4e0d\u77e5\u9053\u4f7f\u7528\u8005\u5df2\u767b\u5165\u3002\u89e3\u6cd5\u5305\u62ec\u5c07 Session \u5b58\u5230 Redis\u3001\u4f7f\u7528 IP Hash\u3001\u6216\u6539\u7528 JWT \u7b49 Stateless \u8a2d\u8a08\u3002\",\n        5: \"<code>least_conn<\/code> \u6307\u4ee4\u544a\u8a34 Nginx \u4f7f\u7528 Least Connections \u6f14\u7b97\u6cd5 \u2014\u2014 \u5c07\u65b0\u8acb\u6c42\u5206\u914d\u7d66\u76ee\u524d\u9023\u7dda\u6578\u6700\u5c11\u7684\u4f3a\u670d\u5668\u3002\u5982\u679c\u4e0d\u52a0\u9019\u884c\uff0cNginx \u9810\u8a2d\u4f7f\u7528 Round Robin\u3002\u8981\u4f7f\u7528 IP Hash \u5247\u9700\u8981\u5beb <code>ip_hash<\/code>\u3002\"\n      };\n\n      function checkAnswer(qNum, selected, correctAns) {\n        const question = document.getElementById(\"q\" + qNum);\n        if (question.classList.contains(\"answered\")) return;\n\n        question.classList.add(\"answered\");\n        answered++;\n\n        const options = question.querySelectorAll(\".options li\");\n        options.forEach((opt) => {\n          opt.classList.add(\"disabled\");\n          if (opt.textContent.startsWith(correctAns + \".\")) {\n            opt.classList.add(\"show-answer\");\n          }\n        });\n\n        const feedback = document.getElementById(\"fb\" + qNum);\n        if (selected === correctAns) {\n          correct++;\n          feedback.className = \"feedback correct\";\n          feedback.innerHTML = \"\u2713 \u6b63\u78ba\uff01\" + explanations[qNum];\n        } else {\n          feedback.className = \"feedback wrong\";\n          feedback.innerHTML =\n            \"\u2717 \u932f\u8aa4\u3002\u6b63\u78ba\u7b54\u6848\u662f \" + correctAns + \"\u3002\" + explanations[qNum];\n          options.forEach((opt) => {\n            if (opt.textContent.startsWith(selected + \".\")) {\n              opt.classList.add(\"wrong\");\n            }\n          });\n        }\n\n        if (answered === total) {\n          const scoreDiv = document.getElementById(\"score\");\n          scoreDiv.style.display = \"block\";\n          scoreDiv.innerHTML =\n            \"\u6e2c\u9a57\u5b8c\u6210\uff01\u5f97\u5206\uff1a\" +\n            correct +\n            \" \/ \" +\n            total +\n            (correct === total\n              ? \" \ud83c\udf89 \u5168\u5c0d\uff01\"\n              : correct >= Math.ceil(total * 0.6)\n                ? \" \ud83d\udc4d \u4e0d\u932f\uff01\"\n                : \" \ud83d\udcda \u518d\u8907\u7fd2\u4e00\u4e0b\u5427\");\n        }\n      }\n    \n<\/script>\n<\/div>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">**\u7cfb\u5217**\uff1a\u7cfb\u7d71\u8a2d\u8a08 30 \u6982\u5ff5\uff08\u7b2c 3 \u7bc7\uff0c\u5171 6 \u7bc7\uff09<br>**\u96e3\u5ea6**\uff1aL2-\u9032\u968e<br>**\u524d\u7f6e\u77e5\u8b58**\uff1a#01 \u7db2\u8def\u57fa\u790e\uff08Client-Server \u67b6\u69cb\uff09\u3001#02 API \u8a2d\u8a08\uff08\u7406\u89e3\u8acb\u6c42\u5982\u4f55\u9032\u5165\u7cfb\u7d71\uff09<br>**\u6db5\u84cb\u6982\u5ff5**\uff1a#12 Vertical Scaling\u3001#13 Horizontal Scaling\u3001#14 Load Balancers<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e00\u53e5\u8a71\u8aaa\u660e<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u7576\u4e00\u53f0\u4f3a\u670d\u5668\u6490\u4e0d\u4f4f\u6d41\u91cf\u6642\uff0c\u4f60\u6709\u5169\u689d\u8def\uff1a\u628a\u9019\u53f0\u6a5f\u5668\u8b8a\u5f37\uff08\u5782\u76f4\u64f4\u5c55\uff09\uff0c\u6216\u662f\u591a\u53eb\u5e7e\u53f0\u4f86\u5e6b\u5fd9\uff08\u6c34\u5e73\u64f4\u5c55\uff09\u3002\u591a\u53f0\u6a5f\u5668\u4e4b\u9593\u9700\u8981\u6709\u4eba\u5206\u914d\u5de5\u4f5c\uff0c\u90a3\u5c31\u662f Load Balancer\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u70ba\u4ec0\u9ebc\u4f60\u9700\u8981\u77e5\u9053\u9019\u4e9b\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f60\u7528 AI \u5e6b\u4f60\u5beb\u4e86\u4e00\u500b Web \u61c9\u7528\uff0c\u90e8\u7f72\u5230\u4e00\u53f0\u96f2\u7aef\u4f3a\u670d\u5668\u4e0a\uff0c\u8dd1\u5f97\u597d\u597d\u7684\u3002\u7136\u5f8c\u6709\u4e00\u5929\u6d41\u91cf\u66b4\u589e \u2014\u2014 \u4f60\u7684\u61c9\u7528\u958b\u59cb\u8b8a\u6162\u3001\u56de\u61c9\u8d85\u6642\u3001\u751a\u81f3\u76f4\u63a5\u639b\u6389\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9019\u6642\u5019\u4f60\u5728\u67b6\u69cb\u6587\u4ef6\u3001\u96f2\u7aef\u670d\u52d9\u7684\u8a2d\u5b9a\u9801\u9762\u3001\u6216\u662f AI \u7d66\u4f60\u7684\u90e8\u7f72\u5efa\u8b70\u4e2d\uff0c\u6703\u4e00\u76f4\u770b\u5230\u9019\u4e9b\u8a5e\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li>\u300c\u5efa\u8b70\u505a horizontal scaling\u300d<\/li>\n\n\n<li>\u300c\u5148 scale up \u5230\u66f4\u5927\u7684 instance\u300d<\/li>\n\n\n<li>\u300c\u524d\u9762\u52a0\u4e00\u500b load balancer\u300d<\/li>\n\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u770b\u4e0d\u61c2\u9019\u4e9b\uff0c\u5c31\u7121\u6cd5\u505a\u51fa\u6b63\u78ba\u7684\u64f4\u5c55\u6c7a\u7b56\u3002\u9019\u7bc7\u6559\u4f60\u8b80\u61c2\u5b83\u5011\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u6982\u5ff5 #12\uff1aVertical Scaling\uff08\u5782\u76f4\u64f4\u5c55\uff09<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e00\u53e5\u8a71\u7ffb\u8b6f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u628a\u73fe\u6709\u7684\u90a3\u53f0\u4f3a\u670d\u5668\u5347\u7d1a\uff0c\u8b93\u5b83\u66f4\u5f37\u3002<\/strong> \u5c31\u50cf\u628a\u4f60\u7684\u7b46\u96fb\u5f9e 8GB RAM \u5347\u5230 32GB RAM\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6700\u5c0f\u7bc4\u4f8b\uff1a\u96f2\u7aef\u8a2d\u5b9a\u4f60\u6703\u770b\u5230\u4ec0\u9ebc<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728 AWS\u3001GCP \u9019\u985e\u96f2\u7aef\u5e73\u53f0\uff0c\u5782\u76f4\u64f4\u5c55\u5c31\u662f\u63db\u4e00\u500b\u66f4\u5927\u7684 instance type\uff1a<\/p>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-1\" data-shcb-language-name=\"CSS\" data-shcb-language-slug=\"css\"><span><code class=\"hljs language-css\"># <span class=\"hljs-selector-tag\">AWS<\/span> <span class=\"hljs-selector-tag\">EC2<\/span> \u5782\u76f4\u64f4\u5c55\u793a\u610f\n\u76ee\u524d\uff1a<span class=\"hljs-selector-tag\">t3<\/span><span class=\"hljs-selector-class\">.small<\/span>  \u2192 2 <span class=\"hljs-selector-tag\">vCPU<\/span>,  2 <span class=\"hljs-selector-tag\">GB<\/span> <span class=\"hljs-selector-tag\">RAM<\/span>\n\u5347\u7d1a\uff1a<span class=\"hljs-selector-tag\">t3<\/span><span class=\"hljs-selector-class\">.xlarge<\/span> \u2192 4 <span class=\"hljs-selector-tag\">vCPU<\/span>, 16 <span class=\"hljs-selector-tag\">GB<\/span> <span class=\"hljs-selector-tag\">RAM<\/span>\n\u5347\u7d1a\uff1a<span class=\"hljs-selector-tag\">m5<\/span><span class=\"hljs-selector-class\">.4xlarge<\/span> \u2192 16 <span class=\"hljs-selector-tag\">vCPU<\/span>, 64 <span class=\"hljs-selector-tag\">GB<\/span> <span class=\"hljs-selector-tag\">RAM<\/span>\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-1\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">CSS<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">css<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7ffb\u8b6f<\/strong>\uff1a\u4e0d\u6539\u67b6\u69cb\u3001\u4e0d\u6539\u7a0b\u5f0f\u78bc\uff0c\u53ea\u662f\u628a\u6a5f\u5668\u5f9e\u300c\u5c0f\u53f0\u300d\u63db\u6210\u300c\u5927\u53f0\u300d\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u67b6\u69cb\u9577\u9019\u6a23<\/h3>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-2\" data-shcb-language-name=\"CSS\" data-shcb-language-slug=\"css\"><span><code class=\"hljs language-css\">\u5347\u7d1a\u524d\uff1a\n  <span class=\"hljs-selector-tag\">Client<\/span> \u2192 <span class=\"hljs-selector-attr\">&#91;\u5c0f\u4f3a\u670d\u5668 2 CPU \/ 2GB RAM]<\/span>\n\n\u5347\u7d1a\u5f8c\uff1a\n  <span class=\"hljs-selector-tag\">Client<\/span> \u2192 <span class=\"hljs-selector-attr\">&#91;\u5927\u4f3a\u670d\u5668 16 CPU \/ 64GB RAM]<\/span>\n\n\u67b6\u69cb\u5b8c\u5168\u6c92\u8b8a\uff0c\u53ea\u662f\u6a5f\u5668\u8b8a\u5f37\u4e86\u3002\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-2\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">CSS<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">css<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u512a\u7f3a\u9ede\u901f\u67e5<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table>\n<thead>\n<tr>\n<th>\u9762\u5411<\/th>\n<th>\u8aaa\u660e<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u512a\u9ede<\/td>\n<td>\u67b6\u69cb\u6700\u7c21\u55ae\uff0c\u4e0d\u9700\u6539\u7a0b\u5f0f\uff0c\u4e0d\u9700\u8655\u7406\u591a\u6a5f\u5668\u540c\u6b65\u554f\u984c<\/td>\n<\/tr>\n<tr>\n<td>\u7f3a\u9ede<\/td>\n<td>\u6709\u5929\u82b1\u677f\uff08\u4e00\u53f0\u6a5f\u5668\u7684\u786c\u9ad4\u6709\u4e0a\u9650\uff09\uff0c\u800c\u4e14\u53ea\u6709\u4e00\u53f0 \u2014\u2014 \u5b83\u639b\u4e86\u5c31\u5168\u639b\u4e86<\/td>\n<\/tr>\n<tr>\n<td>\u9069\u5408<\/td>\n<td>\u5c08\u6848\u521d\u671f\u3001\u6d41\u91cf\u7a69\u5b9a\u53ef\u9810\u6e2c\u3001\u8cc7\u6599\u5eab\u9019\u985e\u4e0d\u5bb9\u6613\u62c6\u5206\u7684\u5143\u4ef6<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f60\u6703\u5728\u54ea\u88e1\u9047\u5230<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li>\u96f2\u7aef\u63a7\u5236\u53f0\u7684\u300cChange Instance Type\u300d\u6309\u9215<\/li>\n\n\n<li>AI \u5efa\u8b70\u4f60\u300cupgrade your database server\u300d<\/li>\n\n\n<li>Docker Compose \u8a2d\u5b9a\u88e1\u8abf\u6574 <code>mem_limit<\/code> \u548c <code>cpus<\/code><\/li>\n\n<\/ul>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-3\" data-shcb-language-name=\"PHP\" data-shcb-language-slug=\"php\"><span><code class=\"hljs language-php\"><span class=\"hljs-comment\"># docker-compose.yml \u88e1\u9650\u5236\u8cc7\u6e90\u7684\u8a2d\u5b9a<\/span>\nservices:\n  web:\n    image: my-app\n    deploy:\n      resources:\n        limits:\n          cpus: <span class=\"hljs-string\">'4.0'<\/span>     <span class=\"hljs-comment\"># \u9650\u5236\u6700\u591a\u7528 4 \u9846 CPU<\/span>\n          memory: <span class=\"hljs-number\">8<\/span>G      <span class=\"hljs-comment\"># \u9650\u5236\u6700\u591a\u7528 8GB \u8a18\u61b6\u9ad4<\/span>\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-3\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PHP<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">php<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7ffb\u8b6f<\/strong>\uff1a\u9019\u6bb5\u4e0d\u662f\u5728\u5beb\u7a0b\u5f0f\uff0c\u53ea\u662f\u5728\u544a\u8a34 Docker\u300c\u9019\u500b\u5bb9\u5668\u6700\u591a\u53ef\u4ee5\u7528\u591a\u5c11\u8cc7\u6e90\u300d\u3002\u8abf\u9ad8\u9019\u4e9b\u6578\u5b57\u5c31\u662f\u4e00\u7a2e\u5782\u76f4\u64f4\u5c55\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u6982\u5ff5 #13\uff1aHorizontal Scaling\uff08\u6c34\u5e73\u64f4\u5c55\uff09<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e00\u53e5\u8a71\u7ffb\u8b6f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u591a\u958b\u5e7e\u53f0\u4e00\u6a23\u7684\u4f3a\u670d\u5668\uff0c\u628a\u5de5\u4f5c\u5206\u7d66\u5b83\u5011\u3002<\/strong> \u5c31\u50cf\u9910\u5ef3\u5fd9\u4e0d\u904e\u4f86\u6642\uff0c\u4e0d\u662f\u8b93\u4e00\u500b\u5eda\u5e2b\u66f4\u52aa\u529b\uff0c\u800c\u662f\u591a\u8acb\u5e7e\u500b\u5eda\u5e2b\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u67b6\u69cb\u9577\u9019\u6a23<\/h3>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-4\" data-shcb-language-name=\"CSS\" data-shcb-language-slug=\"css\"><span><code class=\"hljs language-css\">\u64f4\u5c55\u524d\uff081 \u53f0\u4f3a\u670d\u5668\uff09\uff1a\n  <span class=\"hljs-selector-tag\">Client<\/span> \u2192 <span class=\"hljs-selector-attr\">&#91;Server]<\/span>\n\n\u6c34\u5e73\u64f4\u5c55\u5f8c\uff083 \u53f0\u4f3a\u670d\u5668\uff09\uff1a\n  <span class=\"hljs-selector-tag\">Client<\/span> \u2192 <span class=\"hljs-selector-attr\">&#91;Load Balancer]<\/span> \u2192 <span class=\"hljs-selector-attr\">&#91;Server 1]<\/span>\n                            \u2192 <span class=\"hljs-selector-attr\">&#91;Server 2]<\/span>\n                            \u2192 <span class=\"hljs-selector-attr\">&#91;Server 3]<\/span>\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-4\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">CSS<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">css<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u6ce8\u610f\u4e2d\u9593\u591a\u4e86\u4e00\u500b <strong>Load Balancer<\/strong>\uff08\u4e0b\u4e00\u7bc0\u6703\u8b1b\uff09\uff0c\u56e0\u70ba\u4f60\u73fe\u5728\u6709\u591a\u53f0\u4f3a\u670d\u5668\uff0c\u9700\u8981\u6709\u4eba\u4f86\u6c7a\u5b9a\u300c\u9019\u500b\u8acb\u6c42\u8981\u9001\u53bb\u54ea\u4e00\u53f0\u300d\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6700\u5c0f\u7bc4\u4f8b\uff1aKubernetes \u4f60\u6703\u770b\u5230\u4ec0\u9ebc<\/h3>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-5\" data-shcb-language-name=\"PHP\" data-shcb-language-slug=\"php\"><span><code class=\"hljs language-php\"><span class=\"hljs-comment\"># Kubernetes Deployment \u2014 \u6c34\u5e73\u64f4\u5c55\u7684\u8a2d\u5b9a<\/span>\napiVersion: apps\/v1\nkind: Deployment\nmetadata:\n  name: my-app\nspec:\n  replicas: <span class=\"hljs-number\">3<\/span>          <span class=\"hljs-comment\"># \u2190 \u958b 3 \u4efd\u4e00\u6a21\u4e00\u6a23\u7684\u4f3a\u670d\u5668<\/span>\n  selector:\n    matchLabels:\n      app: my-app\n  template:\n    spec:\n      containers:\n      - name: my-app\n        image: my-app:latest\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-5\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PHP<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">php<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7ffb\u8b6f<\/strong>\uff1a<code>replicas: 3<\/code> \u5c31\u662f\u6c34\u5e73\u64f4\u5c55\u7684\u6838\u5fc3 \u2014\u2014 \u544a\u8a34 Kubernetes\u300c\u8dd1 3 \u4efd\u4e00\u6a21\u4e00\u6a23\u7684\u6211\u7684\u61c9\u7528\u300d\u3002\u60f3\u8981\u66f4\u591a\uff1f\u628a 3 \u6539\u6210 10 \u5c31\u597d\u4e86\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u81ea\u52d5\u64f4\u5c55\uff1aHPA<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728 Kubernetes \u88e1\uff0c\u4f60\u9084\u6703\u770b\u5230 HPA\uff08Horizontal Pod Autoscaler\uff09\uff0c\u5b83\u6703\u81ea\u52d5\u5e6b\u4f60\u6c7a\u5b9a\u8981\u958b\u5e7e\u53f0\uff1a<\/p>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-6\" data-shcb-language-name=\"PHP\" data-shcb-language-slug=\"php\"><span><code class=\"hljs language-php\"><span class=\"hljs-comment\"># HPA \u2014 \u81ea\u52d5\u6c34\u5e73\u64f4\u5c55<\/span>\napiVersion: autoscaling\/v2\nkind: HorizontalPodAutoscaler\nspec:\n  minReplicas: <span class=\"hljs-number\">2<\/span>       <span class=\"hljs-comment\"># \u6700\u5c11 2 \u53f0<\/span>\n  maxReplicas: <span class=\"hljs-number\">10<\/span>      <span class=\"hljs-comment\"># \u6700\u591a 10 \u53f0<\/span>\n  metrics:\n  - type: Resource\n    resource:\n      name: cpu\n      target:\n        type: Utilization\n        averageUtilization: <span class=\"hljs-number\">70<\/span>   <span class=\"hljs-comment\"># CPU \u4f7f\u7528\u7387\u8d85\u904e 70% \u5c31\u52a0\u6a5f\u5668<\/span>\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-6\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PHP<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">php<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7ffb\u8b6f<\/strong>\uff1a\u300c\u5e73\u5e38\u81f3\u5c11\u8dd1 2 \u53f0\uff0c\u6700\u591a\u53ef\u4ee5\u958b\u5230 10 \u53f0\u3002\u7576 CPU \u4f7f\u7528\u7387\u8d85\u904e 70%\uff0c\u5c31\u81ea\u52d5\u591a\u958b\u4e00\u53f0\u3002\u300d\u2014\u2014 \u9019\u5c31\u662f\u81ea\u52d5\u5316\u7684\u6c34\u5e73\u64f4\u5c55\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u512a\u7f3a\u9ede\u901f\u67e5<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table>\n<thead>\n<tr>\n<th>\u9762\u5411<\/th>\n<th>\u8aaa\u660e<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u512a\u9ede<\/td>\n<td>\u7406\u8ad6\u4e0a\u7121\u4e0a\u9650\uff08\u6a5f\u5668\u53ef\u4ee5\u4e00\u76f4\u52a0\uff09\u3001\u6709\u5197\u9918\uff08\u4e00\u53f0\u639b\u4e86\u9084\u6709\u5176\u4ed6\u53f0\u9802\u8457\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u7f3a\u9ede<\/td>\n<td>\u67b6\u69cb\u8b8a\u8907\u96dc\u4e86\uff0c\u8981\u8655\u7406\u300c\u591a\u53f0\u6a5f\u5668\u4e4b\u9593\u7684\u8cc7\u6599\u4e00\u81f4\u6027\u300d\u554f\u984c<\/td>\n<\/tr>\n<tr>\n<td>\u9069\u5408<\/td>\n<td>\u6d41\u91cf\u5927\u4e14\u4e0d\u53ef\u9810\u6e2c\u3001\u9700\u8981\u9ad8\u53ef\u7528\u6027\uff08\u4e0d\u80fd\u505c\u6a5f\uff09\u7684\u7cfb\u7d71<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u6c34\u5e73\u64f4\u5c55\u5e36\u4f86\u7684\u65b0\u554f\u984c<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u591a\u53f0\u4f3a\u670d\u5668\u770b\u8d77\u4f86\u5f88\u7f8e\u597d\uff0c\u4f46\u5b83\u5e36\u4f86\u4e00\u500b\u95dc\u9375\u554f\u984c \u2014\u2014 <strong>\u72c0\u614b\uff08State\uff09\u653e\u5728\u54ea\u88e1\uff1f<\/strong><\/p>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\"><span><code class=\"hljs\">\u554f\u984c\u5834\u666f\uff1a\n  User \u767b\u5165 \u2192 \u8acb\u6c42\u9001\u5230 Server 1 \u2192 Server 1 \u8a18\u4f4f\u300cUser \u5df2\u767b\u5165\u300d\n  User \u4e0b\u4e00\u500b\u8acb\u6c42 \u2192 \u88ab\u9001\u5230 Server 2 \u2192 Server 2 \u4e0d\u77e5\u9053 User \u5df2\u767b\u5165\uff01\n\n\u89e3\u6cd5\uff1a\n  1. Session \u5b58\u5728\u7368\u7acb\u7684\u5730\u65b9\uff08\u5982 Redis\uff09\uff0c\u6240\u6709 Server \u90fd\u53bb\u90a3\u908a\u67e5\n  2. \u4f7f\u7528 IP Hash \u8b93\u540c\u4e00\u500b User \u6c38\u9060\u9001\u5230\u540c\u4e00\u53f0\uff08\u4e0b\u4e00\u7bc0\u6703\u8b1b\uff09\n  3. \u4f7f\u7528 Stateless \u8a2d\u8a08\uff08\u7528 JWT Token\uff0c\u6bcf\u6b21\u8acb\u6c42\u90fd\u5e36\u8457\u8eab\u4efd\u8cc7\u8a0a\uff09\n<\/code><\/span><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7ffb\u8b6f<\/strong>\uff1a\u6c34\u5e73\u64f4\u5c55\u8981\u6c42\u4f60\u7684\u61c9\u7528\u76e1\u91cf\u662f\u300c\u7121\u72c0\u614b\u300d\u7684 \u2014\u2014 \u4e0d\u8981\u628a\u8cc7\u6599\u5b58\u5728\u55ae\u4e00\u4f3a\u670d\u5668\u7684\u8a18\u61b6\u9ad4\u88e1\u3002\u770b\u5230 AI \u628a session \u6539\u7528 Redis \u5b58\uff0c\u6216\u662f\u6539\u7528 JWT\uff0c\u901a\u5e38\u5c31\u662f\u5728\u89e3\u6c7a\u9019\u500b\u554f\u984c\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u6982\u5ff5 #14\uff1aLoad Balancers\uff08\u8ca0\u8f09\u5747\u8861\u5668\uff09<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e00\u53e5\u8a71\u7ffb\u8b6f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u6c34\u5e73\u64f4\u5c55\u5f8c\u7684\u300c\u4ea4\u901a\u6307\u63ee\u5b98\u300d\uff0c\u6c7a\u5b9a\u6bcf\u500b\u8acb\u6c42\u8981\u9001\u53bb\u54ea\u53f0\u4f3a\u670d\u5668\u3002<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u67b6\u69cb\u9577\u9019\u6a23<\/h3>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-7\" data-shcb-language-name=\"CSS\" data-shcb-language-slug=\"css\"><span><code class=\"hljs language-css\">                    \u250c\u2192 <span class=\"hljs-selector-attr\">&#91;Server 1]<\/span>  \u8655\u7406 33% \u7684\u8acb\u6c42\n<span class=\"hljs-selector-attr\">&#91;Client]<\/span> \u2192 <span class=\"hljs-selector-attr\">&#91;LB]<\/span> \u2500\u2500\u2500\u253c\u2192 <span class=\"hljs-selector-attr\">&#91;Server 2]<\/span>  \u8655\u7406 33% \u7684\u8acb\u6c42\n                    \u2514\u2192 <span class=\"hljs-selector-attr\">&#91;Server 3]<\/span>  \u8655\u7406 33% \u7684\u8acb\u6c42\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-7\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">CSS<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">css<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">Load Balancer\uff08\u7c21\u7a31 LB\uff09\u5750\u5728 Client \u548c Server \u7fa4\u4e4b\u9593\u3002\u9084\u8a18\u5f97\u4e0a\u4e00\u7bc7\u63d0\u5230\u7684 Reverse Proxy \u55ce\uff1fLoad Balancer \u672c\u8cea\u4e0a\u5c31\u662f Reverse Proxy \u7684\u4e00\u7a2e\u61c9\u7528 \u2014\u2014 \u5b83\u4ee3\u7406\u4e86\u5f8c\u7aef\u7684\u591a\u53f0\u4f3a\u670d\u5668\uff0cClient \u4e0d\u9700\u8981\u77e5\u9053\u5f8c\u9762\u6709\u5e7e\u53f0\u3001\u5206\u5225\u662f\u4ec0\u9ebc IP\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e09\u7a2e\u5e38\u898b\u7684\u5206\u914d\u6f14\u7b97\u6cd5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Load Balancer \u600e\u9ebc\u6c7a\u5b9a\u628a\u8acb\u6c42\u9001\u7d66\u8ab0\uff1f\u4ee5\u4e0b\u662f\u4e09\u7a2e\u6700\u5e38\u898b\u7684\u6f14\u7b97\u6cd5\uff1a<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">1. Round Robin\uff08\u8f2a\u6d41\u5206\u914d\uff09<\/h4>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\"><span><code class=\"hljs\">\u8acb\u6c42 1 \u2192 Server 1\n\u8acb\u6c42 2 \u2192 Server 2\n\u8acb\u6c42 3 \u2192 Server 3\n\u8acb\u6c42 4 \u2192 Server 1  \u2190 \u56de\u5230\u7b2c\u4e00\u53f0\uff0c\u7e7c\u7e8c\u8f2a\u6d41\n\u8acb\u6c42 5 \u2192 Server 2\n\u8acb\u6c42 6 \u2192 Server 3\n<\/code><\/span><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7ffb\u8b6f<\/strong>\uff1a\u50cf\u767c\u64b2\u514b\u724c\u4e00\u6a23\uff0c\u4e00\u4eba\u4e00\u5f35\u8f2a\u6d41\u767c\u3002\u6700\u7c21\u55ae\u3001\u6700\u5e38\u898b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u9069\u5408<\/strong>\uff1a\u6bcf\u500b\u8acb\u6c42\u7684\u8655\u7406\u6642\u9593\u5dee\u4e0d\u591a\u7684\u5834\u666f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u4e0d\u9069\u5408<\/strong>\uff1a\u6709\u4e9b\u8acb\u6c42\u5f88\u91cd\uff08\u8981 10 \u79d2\uff09\uff0c\u6709\u4e9b\u5f88\u8f15\uff080.1 \u79d2\uff09\uff0c\u8f2a\u6d41\u767c\u6703\u8b93\u67d0\u53f0\u4f3a\u670d\u5668\u5806\u7a4d\u904e\u591a\u91cd\u8acb\u6c42\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">2. Least Connections\uff08\u6700\u5c11\u9023\u7dda\u6578\uff09<\/h4>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\"><span><code class=\"hljs\">\u76ee\u524d\u72c0\u614b\uff1a\n  Server 1\uff1a5 \u500b\u9023\u7dda\n  Server 2\uff1a2 \u500b\u9023\u7dda  \u2190 \u6700\u5c11\n  Server 3\uff1a8 \u500b\u9023\u7dda\n\n\u65b0\u8acb\u6c42 \u2192 \u9001\u7d66 Server 2\uff08\u56e0\u70ba\u5b83\u76ee\u524d\u6700\u9592\uff09\n<\/code><\/span><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7ffb\u8b6f<\/strong>\uff1a\u770b\u8ab0\u624b\u4e0a\u5de5\u4f5c\u6700\u5c11\uff0c\u5c31\u628a\u65b0\u4efb\u52d9\u7d66\u8ab0\u3002\u6bd4 Round Robin \u66f4\u8070\u660e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u9069\u5408<\/strong>\uff1a\u8acb\u6c42\u8655\u7406\u6642\u9593\u4e0d\u5747\u52fb\u7684\u5834\u666f\uff08\u4f8b\u5982\u6709\u4e9b API \u8981\u67e5\u8cc7\u6599\u5eab\u5f88\u4e45\uff09\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">3. IP Hash\uff08IP \u96dc\u6e4a\uff09<\/h4>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-8\" data-shcb-language-name=\"CSS\" data-shcb-language-slug=\"css\"><span><code class=\"hljs language-css\"><span class=\"hljs-selector-tag\">Client<\/span> <span class=\"hljs-selector-tag\">A<\/span> (<span class=\"hljs-selector-tag\">IP<\/span>: 1<span class=\"hljs-selector-class\">.2<\/span><span class=\"hljs-selector-class\">.3<\/span><span class=\"hljs-selector-class\">.4<\/span>) \u2192 <span class=\"hljs-selector-tag\">Hash<\/span> \u2192 \u6c38\u9060\u9001\u5230 <span class=\"hljs-selector-tag\">Server<\/span> 2\n<span class=\"hljs-selector-tag\">Client<\/span> <span class=\"hljs-selector-tag\">B<\/span> (<span class=\"hljs-selector-tag\">IP<\/span>: 5<span class=\"hljs-selector-class\">.6<\/span><span class=\"hljs-selector-class\">.7<\/span><span class=\"hljs-selector-class\">.8<\/span>) \u2192 <span class=\"hljs-selector-tag\">Hash<\/span> \u2192 \u6c38\u9060\u9001\u5230 <span class=\"hljs-selector-tag\">Server<\/span> 1\n<span class=\"hljs-selector-tag\">Client<\/span> <span class=\"hljs-selector-tag\">C<\/span> (<span class=\"hljs-selector-tag\">IP<\/span>: 9<span class=\"hljs-selector-class\">.0<\/span><span class=\"hljs-selector-class\">.1<\/span><span class=\"hljs-selector-class\">.2<\/span>) \u2192 <span class=\"hljs-selector-tag\">Hash<\/span> \u2192 \u6c38\u9060\u9001\u5230 <span class=\"hljs-selector-tag\">Server<\/span> 3\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-8\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">CSS<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">css<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7ffb\u8b6f<\/strong>\uff1a\u6839\u64da Client \u7684 IP \u7b97\u51fa\u4e00\u500b\u56fa\u5b9a\u503c\uff0c\u6c38\u9060\u9001\u5230\u540c\u4e00\u53f0\u4f3a\u670d\u5668\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u9069\u5408<\/strong>\uff1a\u9700\u8981\u7dad\u6301 Session \u7684\u5834\u666f\uff08\u4f8b\u5982\u4f7f\u7528\u8005\u767b\u5165\u5f8c\uff0c\u5f8c\u7e8c\u8acb\u6c42\u90fd\u8981\u9001\u5230\u540c\u4e00\u53f0\uff09\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u6ce8\u610f<\/strong>\uff1a\u9019\u7a2e\u505a\u6cd5\u72a7\u7272\u4e86\u4e00\u4e9b\u8ca0\u8f09\u5e73\u8861\u7684\u6548\u679c\uff0c\u56e0\u70ba\u4e0d\u662f\u300c\u8ab0\u6700\u9592\u5c31\u7d66\u8ab0\u300d\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6700\u5c0f\u7bc4\u4f8b\uff1aNginx \u8a2d\u5b9a\u4f60\u6703\u770b\u5230\u4ec0\u9ebc<\/h3>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-9\" data-shcb-language-name=\"PHP\" data-shcb-language-slug=\"php\"><span><code class=\"hljs language-php\"><span class=\"hljs-comment\"># Nginx \u4f5c\u70ba Load Balancer \u7684\u8a2d\u5b9a<\/span>\nupstream my_app {\n    <span class=\"hljs-comment\"># \u9810\u8a2d\u5c31\u662f Round Robin<\/span>\n    server <span class=\"hljs-number\">192.168<\/span><span class=\"hljs-number\">.1<\/span><span class=\"hljs-number\">.10<\/span>:<span class=\"hljs-number\">8080<\/span>;    <span class=\"hljs-comment\"># Server 1<\/span>\n    server <span class=\"hljs-number\">192.168<\/span><span class=\"hljs-number\">.1<\/span><span class=\"hljs-number\">.11<\/span>:<span class=\"hljs-number\">8080<\/span>;    <span class=\"hljs-comment\"># Server 2<\/span>\n    server <span class=\"hljs-number\">192.168<\/span><span class=\"hljs-number\">.1<\/span><span class=\"hljs-number\">.12<\/span>:<span class=\"hljs-number\">8080<\/span>;    <span class=\"hljs-comment\"># Server 3<\/span>\n}\n\nserver {\n    listen <span class=\"hljs-number\">80<\/span>;\n    location \/ {\n        proxy_pass http:<span class=\"hljs-comment\">\/\/my_app;   # \u628a\u8acb\u6c42\u8f49\u767c\u7d66\u4e0a\u9762\u5b9a\u7fa9\u7684\u4f3a\u670d\u5668\u7fa4<\/span>\n    }\n}\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-9\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PHP<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">php<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>\u9010\u6bb5\u7ffb\u8b6f<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li><code>upstream my_app<\/code>\uff1a\u5b9a\u7fa9\u4e00\u7d44\u5f8c\u7aef\u4f3a\u670d\u5668\uff0c\u53d6\u540d\u53eb <code>my_app<\/code><\/li>\n\n\n<li><code>server 192.168.1.10:8080<\/code>\uff1a\u5f8c\u7aef\u4f3a\u670d\u5668 1 \u7684\u4f4d\u7f6e<\/li>\n\n\n<li><code>proxy_pass http:\/\/my_app<\/code>\uff1a\u6536\u5230\u8acb\u6c42\u6642\uff0c\u8f49\u767c\u7d66 <code>my_app<\/code> \u9019\u7d44\u4f3a\u670d\u5668\uff08Nginx \u6703\u81ea\u52d5\u7528 Round Robin \u5206\u914d\uff09<\/li>\n\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u8981\u7528\u5176\u4ed6\u6f14\u7b97\u6cd5\uff1a<\/p>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-10\" data-shcb-language-name=\"PHP\" data-shcb-language-slug=\"php\"><span><code class=\"hljs language-php\">upstream my_app {\n    least_conn;                      <span class=\"hljs-comment\"># \u2190 \u6539\u7528 Least Connections<\/span>\n    server <span class=\"hljs-number\">192.168<\/span><span class=\"hljs-number\">.1<\/span><span class=\"hljs-number\">.10<\/span>:<span class=\"hljs-number\">8080<\/span>;\n    server <span class=\"hljs-number\">192.168<\/span><span class=\"hljs-number\">.1<\/span><span class=\"hljs-number\">.11<\/span>:<span class=\"hljs-number\">8080<\/span>;\n    server <span class=\"hljs-number\">192.168<\/span><span class=\"hljs-number\">.1<\/span><span class=\"hljs-number\">.12<\/span>:<span class=\"hljs-number\">8080<\/span>;\n}\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-10\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PHP<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">php<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\" aria-describedby=\"shcb-language-11\" data-shcb-language-name=\"PHP\" data-shcb-language-slug=\"php\"><span><code class=\"hljs language-php\">upstream my_app {\n    ip_hash;                         <span class=\"hljs-comment\"># \u2190 \u6539\u7528 IP Hash<\/span>\n    server <span class=\"hljs-number\">192.168<\/span><span class=\"hljs-number\">.1<\/span><span class=\"hljs-number\">.10<\/span>:<span class=\"hljs-number\">8080<\/span>;\n    server <span class=\"hljs-number\">192.168<\/span><span class=\"hljs-number\">.1<\/span><span class=\"hljs-number\">.11<\/span>:<span class=\"hljs-number\">8080<\/span>;\n    server <span class=\"hljs-number\">192.168<\/span><span class=\"hljs-number\">.1<\/span><span class=\"hljs-number\">.12<\/span>:<span class=\"hljs-number\">8080<\/span>;\n}\n<\/code><\/span><small class=\"shcb-language\" id=\"shcb-language-11\"><span class=\"shcb-language__label\">Code language:<\/span> <span class=\"shcb-language__name\">PHP<\/span> <span class=\"shcb-language__paren\">(<\/span><span class=\"shcb-language__slug\">php<\/span><span class=\"shcb-language__paren\">)<\/span><\/small><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7ffb\u8b6f<\/strong>\uff1a\u53ea\u8981\u5728 <code>upstream<\/code> \u5340\u584a\u88e1\u52a0\u4e00\u884c\uff0c\u5c31\u80fd\u5207\u63db\u5206\u914d\u7b56\u7565\u3002\u4e0d\u52a0\u7684\u8a71\u9810\u8a2d\u5c31\u662f Round Robin\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u96f2\u7aef\u5e73\u53f0\u7684 Load Balancer<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u5be6\u969b\u5834\u666f\u4e2d\uff0c\u4f60\u4e0d\u4e00\u5b9a\u8981\u81ea\u5df1\u8a2d\u5b9a Nginx\u3002\u96f2\u7aef\u5e73\u53f0\u90fd\u6709\u73fe\u6210\u7684 Load Balancer \u670d\u52d9\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table>\n<thead>\n<tr>\n<th>\u96f2\u7aef\u5e73\u53f0<\/th>\n<th>Load Balancer \u670d\u52d9<\/th>\n<th>\u4f60\u6703\u770b\u5230\u7684\u540d\u7a31<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>AWS<\/td>\n<td>Elastic Load Balancing<\/td>\n<td>ALB\uff08Application LB\uff09\u3001NLB\uff08Network LB\uff09<\/td>\n<\/tr>\n<tr>\n<td>GCP<\/td>\n<td>Cloud Load Balancing<\/td>\n<td>HTTP(S) Load Balancer<\/td>\n<\/tr>\n<tr>\n<td>Azure<\/td>\n<td>Azure Load Balancer<\/td>\n<td>Application Gateway<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7ffb\u8b6f<\/strong>\uff1a\u9019\u4e9b\u672c\u8cea\u4e0a\u90fd\u5728\u505a\u540c\u4e00\u4ef6\u4e8b \u2014\u2014 \u628a\u6d41\u91cf\u5206\u6563\u5230\u591a\u53f0\u4f3a\u670d\u5668\u3002\u53ea\u662f\u540d\u5b57\u4e0d\u540c\u3001\u8a2d\u5b9a\u4ecb\u9762\u4e0d\u540c\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u5782\u76f4 vs \u6c34\u5e73\uff1a\u600e\u9ebc\u9078\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u9019\u662f\u9762\u8a66\u548c\u5be6\u52d9\u4e2d\u6700\u5e38\u88ab\u554f\u7684\u554f\u984c\u3002\u7528\u4e00\u5f35\u8868\u7e3d\u7d50\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table>\n<thead>\n<tr>\n<th>\u8003\u91cf\u56e0\u7d20<\/th>\n<th>\u5782\u76f4\u64f4\u5c55\uff08Scale Up\uff09<\/th>\n<th>\u6c34\u5e73\u64f4\u5c55\uff08Scale Out\uff09<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u505a\u6cd5<\/td>\n<td>\u63db\u66f4\u5927\u7684\u6a5f\u5668<\/td>\n<td>\u52a0\u66f4\u591a\u53f0\u6a5f\u5668<\/td>\n<\/tr>\n<tr>\n<td>\u96e3\u5ea6<\/td>\n<td>\u7c21\u55ae\uff0c\u4e0d\u6539\u67b6\u69cb<\/td>\n<td>\u8907\u96dc\uff0c\u8981\u8655\u7406\u5206\u6563\u5f0f\u554f\u984c<\/td>\n<\/tr>\n<tr>\n<td>\u4e0a\u9650<\/td>\n<td>\u6709\uff08\u786c\u9ad4\u898f\u683c\u6709\u5929\u82b1\u677f\uff09<\/td>\n<td>\u7406\u8ad6\u4e0a\u7121\u9650<\/td>\n<\/tr>\n<tr>\n<td>\u53ef\u7528\u6027<\/td>\n<td>\u4f4e\uff08\u55ae\u9ede\u6545\u969c\uff09<\/td>\n<td>\u9ad8\uff08\u4e00\u53f0\u639b\u4e86\u9084\u6709\u5176\u4ed6\u53f0\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u6210\u672c<\/td>\n<td>\u9ad8\u898f\u683c\u6a5f\u5668\u55ae\u50f9\u5f88\u8cb4<\/td>\n<td>\u591a\u53f0\u5c0f\u6a5f\u5668\u53ef\u80fd\u66f4\u5212\u7b97<\/td>\n<\/tr>\n<tr>\n<td>\u9069\u5408<\/td>\n<td>\u521d\u671f\u3001DB\u3001\u6d41\u91cf\u7a69\u5b9a<\/td>\n<td>\u6210\u9577\u671f\u3001Web Server\u3001\u6d41\u91cf\u6ce2\u52d5\u5927<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u5be6\u52d9\u4e0a\u7684\u9078\u64c7\u908f\u8f2f<\/h3>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\"><span><code class=\"hljs\">\u6d41\u91cf\u4e0d\u5920\u4e86\uff0c\u600e\u9ebc\u8fa6\uff1f\n\u2502\n\u251c\u2500 \u5148\u8a66\u5782\u76f4\u64f4\u5c55\uff08\u6700\u7c21\u55ae\uff09\n\u2502   \u251c\u2500 \u5920\u7528\u4e86 \u2192 \u7d50\u675f\n\u2502   \u2514\u2500 \u9084\u662f\u4e0d\u5920 \/ \u9700\u8981\u9ad8\u53ef\u7528\u6027 \u2192 \u5f80\u4e0b\n\u2502\n\u2514\u2500 \u505a\u6c34\u5e73\u64f4\u5c55\n    \u251c\u2500 \u52a0 Load Balancer\n    \u251c\u2500 \u8655\u7406 Session \/ State \u554f\u984c\n    \u2514\u2500 \u8a2d\u5b9a\u81ea\u52d5\u64f4\u5c55\uff08Auto Scaling\uff09\n<\/code><\/span><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7ffb\u8b6f<\/strong>\uff1a\u5927\u591a\u6578\u60c5\u6cc1\u4e0b\uff0c\u5148 Scale Up \u662f\u6700\u52d9\u5be6\u7684\u505a\u6cd5\u3002\u7b49\u5230 Scale Up \u5230\u9802\u4e86\uff0c\u6216\u662f\u4f60\u9700\u8981\u300c\u4e0d\u80fd\u505c\u6a5f\u300d\u7684\u4fdd\u8b49\uff0c\u518d\u8003\u616e Scale Out\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Vibe Coder \u6aa2\u67e5\u9ede<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u7576\u4f60\u5728\u67b6\u69cb\u5716\u3001\u90e8\u7f72\u8a2d\u5b9a\u3001\u6216\u662f AI \u7684\u5efa\u8b70\u4e2d\u770b\u5230\u9019\u4e9b\u6982\u5ff5\u6642\uff0c\u78ba\u8a8d\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li>[ ] <strong>\u770b\u5230 Scale Up \u5efa\u8b70\u6642<\/strong>\uff1a\u78ba\u8a8d\u662f\u5426\u771f\u7684\u53ea\u662f\u6d41\u91cf\u554f\u984c\u3002\u6709\u6642\u5019\u61c9\u7528\u8b8a\u6162\u662f\u56e0\u70ba\u7a0b\u5f0f\u78bc\u6548\u80fd\u5dee\uff08\u6bd4\u5982\u6c92\u52a0 index \u7684\u8cc7\u6599\u5eab\u67e5\u8a62\uff09\uff0cScale Up \u53ea\u662f\u6cbb\u6a19\u3002<\/li>\n\n\n<li>[ ] <strong>\u770b\u5230 Scale Out \u5efa\u8b70\u6642<\/strong>\uff1a\u78ba\u8a8d\u4f60\u7684\u61c9\u7528\u662f\u5426\u662f Stateless \u7684\u3002\u5982\u679c Session \u5b58\u5728\u4f3a\u670d\u5668\u8a18\u61b6\u9ad4\u88e1\uff0cScale Out \u5f8c\u6703\u51fa\u554f\u984c\u3002<\/li>\n\n\n<li>[ ] <strong>\u770b\u5230 Load Balancer \u8a2d\u5b9a\u6642<\/strong>\uff1a\u78ba\u8a8d\u4f7f\u7528\u7684\u6f14\u7b97\u6cd5\u662f\u5426\u9069\u5408\u4f60\u7684\u5834\u666f\u3002\u5927\u591a\u6578\u60c5\u6cc1 Round Robin \u5c31\u5920\u4e86\uff0c\u9664\u975e\u4f60\u6709\u7279\u6b8a\u9700\u6c42\u3002<\/li>\n\n\n<li>[ ] <strong>\u770b\u5230 <code>replicas<\/code> \u6216 <code>Auto Scaling<\/code> \u8a2d\u5b9a\u6642<\/strong>\uff1a\u78ba\u8a8d min \u548c max \u7684\u503c\u662f\u5426\u5408\u7406\u3002\u8a2d\u592a\u9ad8\u6703\u6d6a\u8cbb\u9322\uff0c\u8a2d\u592a\u4f4e\u6703\u64cb\u4e0d\u4f4f\u6d41\u91cf\u3002<\/li>\n\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u5fc5\u770b\u61c2 vs \u77e5\u9053\u5c31\u597d<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5fc5\u770b\u61c2\uff08\u6703\u4e00\u76f4\u51fa\u73fe\uff09<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li><strong>\u5782\u76f4 vs \u6c34\u5e73\u64f4\u5c55<\/strong>\u7684\u5dee\u7570 \u2014\u2014 \u9019\u662f\u6240\u6709\u64f4\u5c55\u8a0e\u8ad6\u7684\u57fa\u790e<\/li>\n\n\n<li><strong>Load Balancer \u7684\u89d2\u8272<\/strong> \u2014\u2014 \u53ea\u8981\u6709\u591a\u53f0\u4f3a\u670d\u5668\u5c31\u6703\u51fa\u73fe<\/li>\n\n\n<li><strong>Round Robin<\/strong> \u2014\u2014 \u6700\u5e38\u898b\u7684\u9810\u8a2d\u5206\u914d\u65b9\u5f0f<\/li>\n\n\n<li><strong>Stateless \u8a2d\u8a08\u7684\u91cd\u8981\u6027<\/strong> \u2014\u2014 \u6c34\u5e73\u64f4\u5c55\u7684\u524d\u63d0\u689d\u4ef6<\/li>\n\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u77e5\u9053\u5c31\u597d\uff08\u9047\u5230\u518d\u67e5\uff09<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li><strong>Sticky Sessions<\/strong>\uff1a\u8b93 Load Balancer \u8a18\u4f4f\u67d0\u500b\u4f7f\u7528\u8005\u8981\u9001\u5230\u54ea\u53f0\u4f3a\u670d\u5668\uff0c\u662f IP Hash \u7684\u8b8a\u9ad4<\/li>\n\n\n<li><strong>Health Check<\/strong>\uff1aLoad Balancer \u5b9a\u671f\u6aa2\u67e5\u5f8c\u7aef\u4f3a\u670d\u5668\u662f\u5426\u6d3b\u8457\uff0c\u58de\u6389\u7684\u5c31\u4e0d\u9001\u8acb\u6c42\u904e\u53bb<\/li>\n\n\n<li><strong>Connection Draining<\/strong>\uff1a\u8981\u95dc\u6389\u4e00\u53f0\u4f3a\u670d\u5668\u524d\uff0c\u7b49\u5b83\u8655\u7406\u5b8c\u624b\u4e0a\u7684\u8acb\u6c42\u518d\u95dc<\/li>\n\n\n<li><strong>Weighted Round Robin<\/strong>\uff1a\u7d66\u4e0d\u540c\u4f3a\u670d\u5668\u4e0d\u540c\u7684\u6b0a\u91cd\uff0c\u6548\u80fd\u597d\u7684\u591a\u5206\u4e00\u9ede\u8acb\u6c42<\/li>\n\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u672c\u7bc7\u91cd\u9ede\u56de\u9867<\/h2>\n\n\n<div class=\"cbc-code-wrapper\"><div class=\"cbc-code-bar\"><button class=\"cbc-copy-button\">Copy<\/button><\/div><pre class=\"wp-block-code\"><span><code class=\"hljs\">\u7cfb\u7d71\u64f4\u5c55\u4e09\u6b65\u9a5f\uff1a\n\n1. Vertical Scaling\uff08\u5782\u76f4\u64f4\u5c55\uff09\n   \u2192 \u628a\u6a5f\u5668\u8b8a\u5f37\uff1a\u5347\u7d1a CPU\u3001RAM\n   \u2192 \u7c21\u55ae\u4f46\u6709\u4e0a\u9650\n\n2. Horizontal Scaling\uff08\u6c34\u5e73\u64f4\u5c55\uff09\n   \u2192 \u591a\u958b\u5e7e\u53f0\u6a5f\u5668\u5206\u64d4\u5de5\u4f5c\n   \u2192 \u6c92\u4e0a\u9650\u4f46\u67b6\u69cb\u8907\u96dc\uff0c\u9700\u8981\u8655\u7406 State \u554f\u984c\n\n3. Load Balancer\uff08\u8ca0\u8f09\u5747\u8861\u5668\uff09\n   \u2192 \u6c34\u5e73\u64f4\u5c55\u5f8c\u5fc5\u5099\uff0c\u5206\u914d\u8acb\u6c42\u5230\u5404\u53f0\u4f3a\u670d\u5668\n   \u2192 \u5e38\u898b\u6f14\u7b97\u6cd5\uff1aRound Robin \/ Least Connections \/ IP Hash\n<\/code><\/span><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u4e00\u7bc7\uff0c\u6211\u5011\u6703\u770b <strong>Caching\uff08\u5feb\u53d6\uff09<\/strong> \u2014\u2014 \u53e6\u4e00\u500b\u8b93\u7cfb\u7d71\u8b8a\u5feb\u7684\u95dc\u9375\u624b\u6bb5\u3002\u4e0d\u662f\u6240\u6709\u8acb\u6c42\u90fd\u9700\u8981\u6bcf\u6b21\u91cd\u65b0\u8a08\u7b97\uff0c\u6709\u4e9b\u7d50\u679c\u53ef\u4ee5\u300c\u8a18\u4f4f\u300d\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">**\u672c\u6587\u6574\u7406\u81ea**\uff1a[System Design was HARD until I Learned these 30 Concepts](https:\/\/www.youtube.com\/watch?v=YyOXt2MEkA4) by Ashish Pratap Singh<br>**\u7cfb\u5217\u76ee\u9304**\uff1a\u7cfb\u7d71\u8a2d\u8a08 30 \u6982\u5ff5\uff08\u5171 6 \u7bc7\uff09<\/p>\n<\/blockquote>\n\n\n\n<div id=\"quiz-cbe364d7\">\n<style>\n#quiz-cbe364d7 .badge {\n        display: inline-block;\n        padding: 4px 10px;\n        border-radius: 12px;\n        font-size: 0.75em;\n        font-weight: bold;\n        margin-left: 8px;\n      }#quiz-cbe364d7 .badge.scenario {\n        background: #ebf8ff;\n        color: #2b6cb0;\n      }#quiz-cbe364d7 .badge.debug {\n        background: #fef3c7;\n        color: #92400e;\n      }#quiz-cbe364d7 .question-adv {\n        background: white;\n        border-radius: 10px;\n        padding: 24px;\n        margin: 20px 0;\n        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);\n        border-left: 4px solid #ed8936;\n      }#quiz-cbe364d7 .question-adv h3 {\n        margin-top: 0;\n        color: #2d3748;\n      }#quiz-cbe364d7 .code-block {\n        background: #1e1e1e;\n        color: #d4d4d4;\n        padding: 14px;\n        border-radius: 6px;\n        font-family: \"Menlo\", \"Monaco\", \"Courier New\", monospace;\n        font-size: 0.9em;\n        overflow-x: auto;\n        margin: 12px 0;\n        white-space: pre-wrap;\n      }#quiz-cbe364d7 .options-adv {\n        list-style: none;\n        padding: 0;\n      }#quiz-cbe364d7 .options-adv li {\n        padding: 14px 16px;\n        margin: 10px 0;\n        border: 2px solid #e2e8f0;\n        border-radius: 8px;\n        cursor: pointer;\n        transition: all 0.2s;\n      }#quiz-cbe364d7 .options-adv li:hover:not(.disabled) {\n        border-color: #ed8936;\n        background: #fffaf0;\n      }#quiz-cbe364d7 .options-adv li.disabled {\n        cursor: default;\n        opacity: 0.7;\n      }#quiz-cbe364d7 .options-adv li.show-answer {\n        border-color: #48bb78;\n        background: #f0fff4;\n      }#quiz-cbe364d7 .options-adv li.wrong {\n        border-color: #fc8181;\n        background: #fff5f5;\n      }#quiz-cbe364d7 .feedback-adv {\n        margin-top: 16px;\n        padding: 14px;\n        border-radius: 8px;\n        display: none;\n        line-height: 1.6;\n      }#quiz-cbe364d7 .feedback-adv.correct {\n        background: #f0fff4;\n        color: #276749;\n        display: block;\n      }#quiz-cbe364d7 .feedback-adv.wrong {\n        background: #fff5f5;\n        color: #c53030;\n        display: block;\n      }#quiz-cbe364d7 .feedback-adv \n      .score-adv {\n        text-align: center;\n        font-size: 1.4em;\n        padding: 24px;\n        background: white;\n        border-radius: 10px;\n        margin-top: 24px;\n        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);\n      }#quiz-cbe364d7 .intro {\n        background: #ebf8ff;\n        padding: 16px;\n        border-radius: 8px;\n        margin-bottom: 20px;\n        color: #2c5282;\n      }\n<\/style>\n<h1>\u9032\u968e\u6e2c\u9a57\uff1a\u7cfb\u7d71\u64f4\u5c55\u8207\u8ca0\u8f09\u5747\u8861<\/h1>\n    <div class=\"intro\">\n      <strong>\u6e2c\u9a57\u76ee\u6a19\uff1a<\/strong>\u9a57\u8b49\u4f60\u662f\u5426\u80fd\u5728\u5be6\u969b\u60c5\u5883\u4e2d\u61c9\u7528\u6240\u5b78\u3002<br \/>\n      \u5171 5 \u984c\uff0c\u5305\u542b\u60c5\u5883\u984c\u8207\u932f\u8aa4\u8a3a\u65b7\u984c\u3002\n    <\/div>\n\n    <!-- \u60c5\u5883\u984c 1 -->\n    <div class=\"question-adv\" id=\"qAdv1\">\n      <h3>1. \u4f60\u7684 Web \u61c9\u7528\u90e8\u7f72\u5728\u4e00\u53f0 t3.small\uff082 vCPU, 2GB RAM\uff09\u4e0a\uff0c\u6700\u8fd1\u958b\u59cb\u51fa\u73fe\u56de\u61c9\u8b8a\u6162\u7684\u60c5\u6cc1\u3002\u76ee\u524d\u65e5\u6d41\u91cf\u7a69\u5b9a\u5728\u6bcf\u5929 5000 \u6b21\u8acb\u6c42\uff0c\u77ed\u671f\u5167\u4e0d\u6703\u6709\u5927\u5e45\u8b8a\u52d5\u3002\u4f60\u61c9\u8a72\u600e\u9ebc\u505a\uff1f <span class=\"badge scenario\">\u60c5\u5883\u984c<\/span><\/h3>\n      <ul class=\"options-adv\">\n        <li onclick=\"checkAnswerAdv(1, 'A', 'B')\">A. \u7acb\u523b\u505a\u6c34\u5e73\u64f4\u5c55\uff0c\u958b 3 \u53f0\u4f3a\u670d\u5668\u4e26\u52a0\u4e0a Load Balancer<\/li>\n        <li onclick=\"checkAnswerAdv(1, 'B', 'B')\">B. \u5148\u5782\u76f4\u64f4\u5c55\uff0c\u5347\u7d1a\u5230\u66f4\u5927\u7684 instance type\uff08\u4f8b\u5982 t3.xlarge\uff09<\/li>\n        <li onclick=\"checkAnswerAdv(1, 'C', 'B')\">C. \u52a0\u5165 Kubernetes \u4e26\u8a2d\u5b9a HPA \u81ea\u52d5\u64f4\u5c55<\/li>\n        <li onclick=\"checkAnswerAdv(1, 'D', 'B')\">D. \u4f7f\u7528 IP Hash \u6f14\u7b97\u6cd5\u7684 Load Balancer \u4f86\u5206\u6563\u6d41\u91cf<\/li>\n      <\/ul>\n      <div class=\"feedback-adv\" id=\"fbAdv1\"><\/div>\n    <\/div>\n\n    <!-- \u60c5\u5883\u984c 2 -->\n    <div class=\"question-adv\" id=\"qAdv2\">\n      <h3>2. \u4f60\u7684\u96fb\u5546\u7db2\u7ad9\u6709\u4e9b API \u56de\u61c9\u5f88\u5feb\uff08\u5546\u54c1\u5217\u8868\uff0c\u7d04 50ms\uff09\uff0c\u6709\u4e9b\u5f88\u6162\uff08\u8a02\u55ae\u67e5\u8a62\u9700\u8981\u8907\u96dc\u7684\u8cc7\u6599\u5eab\u8a08\u7b97\uff0c\u7d04 3 \u79d2\uff09\u3002\u4f60\u5df2\u7d93\u6c34\u5e73\u64f4\u5c55\u5230 4 \u53f0\u4f3a\u670d\u5668\uff0c\u4f46\u767c\u73fe\u67d0\u4e9b\u4f3a\u670d\u5668\u7d93\u5e38\u904e\u8f09\u800c\u5176\u4ed6\u4f3a\u670d\u5668\u5f88\u9592\u3002\u76ee\u524d\u4f7f\u7528 Round Robin \u5206\u914d\u3002\u4f60\u61c9\u8a72\u600e\u9ebc\u8abf\u6574\uff1f <span class=\"badge scenario\">\u60c5\u5883\u984c<\/span><\/h3>\n      <ul class=\"options-adv\">\n        <li onclick=\"checkAnswerAdv(2, 'A', 'C')\">A. \u589e\u52a0\u66f4\u591a\u4f3a\u670d\u5668\u6578\u91cf\uff0c\u5f9e 4 \u53f0\u64f4\u5c55\u5230 8 \u53f0<\/li>\n        <li onclick=\"checkAnswerAdv(2, 'B', 'C')\">B. \u6539\u7528 IP Hash\uff0c\u8b93\u6bcf\u500b\u4f7f\u7528\u8005\u56fa\u5b9a\u5728\u540c\u4e00\u53f0\u4f3a\u670d\u5668\u4e0a<\/li>\n        <li onclick=\"checkAnswerAdv(2, 'C', 'C')\">C. \u6539\u7528 Least Connections \u6f14\u7b97\u6cd5\uff0c\u8b93\u65b0\u8acb\u6c42\u5206\u914d\u7d66\u76ee\u524d\u6700\u9592\u7684\u4f3a\u670d\u5668<\/li>\n        <li onclick=\"checkAnswerAdv(2, 'D', 'C')\">D. \u5c0d\u6240\u6709\u4f3a\u670d\u5668\u505a\u5782\u76f4\u64f4\u5c55\uff0c\u5347\u7d1a\u5230\u66f4\u9ad8\u7684\u786c\u9ad4\u898f\u683c<\/li>\n      <\/ul>\n      <div class=\"feedback-adv\" id=\"fbAdv2\"><\/div>\n    <\/div>\n\n    <!-- \u60c5\u5883\u984c 3 -->\n    <div class=\"question-adv\" id=\"qAdv3\">\n      <h3>3. \u4f60\u7684\u61c9\u7528\u4f7f\u7528\u4e86 3 \u53f0\u4f3a\u670d\u5668\u505a\u6c34\u5e73\u64f4\u5c55\uff0c\u4f7f\u7528\u8005\u53cd\u6620\u300c\u6709\u6642\u5019\u767b\u5165\u5f8c\u518d\u64cd\u4f5c\u5c31\u8b8a\u6210\u672a\u767b\u5165\u72c0\u614b\u300d\u3002\u4f60\u6aa2\u67e5\u767c\u73fe\u61c9\u7528\u662f\u628a Session \u5b58\u5728\u6bcf\u53f0\u4f3a\u670d\u5668\u5404\u81ea\u7684\u8a18\u61b6\u9ad4\u88e1\u3002\u4ee5\u4e0b\u54ea\u500b\u65b9\u6848\u6700\u80fd\u6839\u672c\u89e3\u6c7a\u9019\u500b\u554f\u984c\uff1f <span class=\"badge scenario\">\u60c5\u5883\u984c<\/span><\/h3>\n      <ul class=\"options-adv\">\n        <li onclick=\"checkAnswerAdv(3, 'A', 'D')\">A. \u628a Load Balancer \u6539\u7528 IP Hash\uff0c\u8b93\u540c\u4e00\u500b\u4f7f\u7528\u8005\u6c38\u9060\u9001\u5230\u540c\u4e00\u53f0\u4f3a\u670d\u5668<\/li>\n        <li onclick=\"checkAnswerAdv(3, 'B', 'D')\">B. \u589e\u52a0\u4f3a\u670d\u5668\u6578\u91cf\u5230 5 \u53f0\u4ee5\u6e1b\u5c11\u55ae\u53f0\u8ca0\u8f09<\/li>\n        <li onclick=\"checkAnswerAdv(3, 'C', 'D')\">C. \u5c0d\u73fe\u6709 3 \u53f0\u4f3a\u670d\u5668\u505a\u5782\u76f4\u64f4\u5c55\uff0c\u8b93\u5b83\u5011\u8655\u7406\u5f97\u66f4\u5feb<\/li>\n        <li onclick=\"checkAnswerAdv(3, 'D', 'D')\">D. \u5c07 Session \u6539\u5b58\u5230\u7368\u7acb\u7684 Redis\uff0c\u6216\u6539\u7528 JWT Token \u5be6\u4f5c\u7121\u72c0\u614b\u8a2d\u8a08<\/li>\n      <\/ul>\n      <div class=\"feedback-adv\" id=\"fbAdv3\"><\/div>\n    <\/div>\n\n    <!-- \u932f\u8aa4\u8a3a\u65b7\u984c 1 -->\n    <div class=\"question-adv\" id=\"qAdv4\">\n      <h3>4. \u5718\u968a\u6210\u54e1\u8a2d\u5b9a\u4e86\u4ee5\u4e0b Nginx Load Balancer\uff0c\u4f46\u4f7f\u7528\u8005\u56de\u5831\u300c\u6bcf\u6b21\u91cd\u65b0\u6574\u7406\u9801\u9762\u90fd\u8981\u91cd\u65b0\u767b\u5165\u300d\u3002\u9019\u500b\u8a2d\u5b9a\u6700\u53ef\u80fd\u7684\u554f\u984c\u5728\u54ea\u88e1\uff1f <span class=\"badge debug\">\u932f\u8aa4\u8a3a\u65b7<\/span><\/h3>\n      <div class=\"code-block\">upstream my_app {\n    server 192.168.1.10:8080;\n    server 192.168.1.11:8080;\n    server 192.168.1.12:8080;\n}\n\nserver {\n    listen 80;\n    location \/ {\n        proxy_pass http:\/\/my_app;\n    }\n}<\/div>\n      <ul class=\"options-adv\">\n        <li onclick=\"checkAnswerAdv(4, 'A', 'B')\">A. <code>listen 80<\/code> \u61c9\u8a72\u6539\u6210 <code>listen 443<\/code> \u624d\u80fd\u652f\u63f4 HTTPS<\/li>\n        <li onclick=\"checkAnswerAdv(4, 'B', 'B')\">B. \u4f7f\u7528\u4e86\u9810\u8a2d\u7684 Round Robin\uff0cSession \u5b58\u5728\u4f3a\u670d\u5668\u8a18\u61b6\u9ad4\u6642\uff0c\u4f7f\u7528\u8005\u8acb\u6c42\u53ef\u80fd\u88ab\u9001\u5230\u4e0d\u540c\u4f3a\u670d\u5668\u5c0e\u81f4 Session \u907a\u5931<\/li>\n        <li onclick=\"checkAnswerAdv(4, 'C', 'B')\">C. \u4e09\u53f0\u4f3a\u670d\u5668\u7684 IP \u4f4d\u5740\u8a2d\u5b9a\u932f\u8aa4\uff0c\u61c9\u8a72\u4f7f\u7528\u516c\u7db2 IP<\/li>\n        <li onclick=\"checkAnswerAdv(4, 'D', 'B')\">D. \u7f3a\u5c11 <code>least_conn<\/code> \u6307\u4ee4\u5c0e\u81f4\u8ca0\u8f09\u5206\u914d\u4e0d\u5747<\/li>\n      <\/ul>\n      <div class=\"feedback-adv\" id=\"fbAdv4\"><\/div>\n    <\/div>\n\n    <!-- \u932f\u8aa4\u8a3a\u65b7\u984c 2 -->\n    <div class=\"question-adv\" id=\"qAdv5\">\n      <h3>5. \u5718\u968a\u90e8\u7f72\u4e86\u4ee5\u4e0b Kubernetes HPA \u8a2d\u5b9a\uff0c\u4f46\u767c\u73fe\u5728\u6d41\u91cf\u9ad8\u5cf0\u671f\uff08CPU \u4f7f\u7528\u7387\u98c6\u5230 95%\uff09\u61c9\u7528\u4ecd\u7136\u5f88\u6162\uff0cHPA \u537b\u6c92\u6709\u7e7c\u7e8c\u589e\u52a0\u6a5f\u5668\u3002\u6700\u53ef\u80fd\u7684\u539f\u56e0\u662f\u4ec0\u9ebc\uff1f <span class=\"badge debug\">\u932f\u8aa4\u8a3a\u65b7<\/span><\/h3>\n      <div class=\"code-block\">apiVersion: autoscaling\/v2\nkind: HorizontalPodAutoscaler\nspec:\n  minReplicas: 2\n  maxReplicas: 3\n  metrics:\n  &#8211; type: Resource\n    resource:\n      name: cpu\n      target:\n        type: Utilization\n        averageUtilization: 70<\/div>\n      <ul class=\"options-adv\">\n        <li onclick=\"checkAnswerAdv(5, 'A', 'C')\">A. <code>averageUtilization: 70<\/code> \u7684\u95be\u503c\u8a2d\u5b9a\u592a\u4f4e\uff0c\u61c9\u8a72\u8abf\u9ad8\u5230 90<\/li>\n        <li onclick=\"checkAnswerAdv(5, 'B', 'C')\">B. \u61c9\u8a72\u6539\u7528 <code>minReplicas: 1<\/code> \u624d\u80fd\u8b93 HPA \u6709\u66f4\u5927\u7684\u8abf\u6574\u7a7a\u9593<\/li>\n        <li onclick=\"checkAnswerAdv(5, 'C', 'C')\">C. <code>maxReplicas: 3<\/code> \u8a2d\u5b9a\u592a\u4f4e\uff0c\u5df2\u7d93\u9054\u5230\u4e0a\u9650\u7121\u6cd5\u518d\u589e\u52a0\uff0c\u61c9\u8a72\u8abf\u9ad8 maxReplicas<\/li>\n        <li onclick=\"checkAnswerAdv(5, 'D', 'C')\">D. HPA \u53ea\u80fd\u76e3\u63a7\u8a18\u61b6\u9ad4\u4f7f\u7528\u7387\uff0c\u7121\u6cd5\u6839\u64da CPU \u4f7f\u7528\u7387\u81ea\u52d5\u64f4\u5c55<\/li>\n      <\/ul>\n      <div class=\"feedback-adv\" id=\"fbAdv5\"><\/div>\n    <\/div>\n\n    <div class=\"score-adv\" id=\"scoreAdv\" style=\"display:none;\"><\/div>\n<script>\n\n      let answeredAdv = 0;\n      let correctAdv = 0;\n      const totalAdv = 5;\n      const explanationsAdv = {\n        1: \"\u6d41\u91cf\u7a69\u5b9a\u5728\u6bcf\u5929 5000 \u6b21\u8acb\u6c42\u4e14\u77ed\u671f\u4e0d\u6703\u5927\u5e45\u8b8a\u52d5\uff0c\u9019\u6b63\u662f\u5782\u76f4\u64f4\u5c55\u7684\u9069\u7528\u5834\u666f \u2014\u2014 \u7c21\u55ae\u3001\u4e0d\u9700\u6539\u67b6\u69cb\u3002\u6587\u7ae0\u6307\u51fa\u5be6\u52d9\u4e0a\u7684\u9078\u64c7\u908f\u8f2f\u662f\u300c\u5148\u8a66\u5782\u76f4\u64f4\u5c55\uff08\u6700\u7c21\u55ae\uff09\uff0c\u7b49\u5230\u4e0d\u5920\u6216\u9700\u8981\u9ad8\u53ef\u7528\u6027\u518d\u8003\u616e\u6c34\u5e73\u64f4\u5c55\u300d\u3002\u76f4\u63a5\u4e0a Kubernetes \u6216 Load Balancer \u5728\u9019\u500b\u968e\u6bb5\u662f\u904e\u5ea6\u8a2d\u8a08\u3002\",\n        2: \"\u554f\u984c\u7684\u6839\u672c\u539f\u56e0\u662f\u8acb\u6c42\u8655\u7406\u6642\u9593\u4e0d\u5747\u52fb \u2014\u2014 \u6709\u4e9b\u5f88\u5feb\uff0850ms\uff09\uff0c\u6709\u4e9b\u5f88\u6162\uff083 \u79d2\uff09\u3002Round Robin \u4e0d\u7ba1\u4f3a\u670d\u5668\u7576\u524d\u7684\u8ca0\u8f09\u72c0\u614b\uff0c\u55ae\u7d14\u8f2a\u6d41\u5206\u914d\uff0c\u5c0e\u81f4\u67d0\u4e9b\u4f3a\u670d\u5668\u5806\u7a4d\u4e86\u591a\u500b\u6162\u8acb\u6c42\u800c\u904e\u8f09\u3002Least Connections \u6703\u628a\u65b0\u8acb\u6c42\u5206\u914d\u7d66\u76ee\u524d\u9023\u7dda\u6578\u6700\u5c11\u7684\u4f3a\u670d\u5668\uff08\u4e5f\u5c31\u662f\u6700\u9592\u7684\u90a3\u53f0\uff09\uff0c\u80fd\u66f4\u597d\u5730\u5e73\u8861\u9019\u7a2e\u4e0d\u5747\u52fb\u7684\u8ca0\u8f09\u3002IP Hash \u7121\u6cd5\u89e3\u6c7a\u8ca0\u8f09\u4e0d\u5747\u7684\u554f\u984c\uff0c\u589e\u52a0\u6a5f\u5668\u6578\u91cf\u4e5f\u4e0d\u80fd\u6839\u6cbb\u5206\u914d\u4e0d\u5408\u7406\u7684\u554f\u984c\u3002\",\n        3: \"IP Hash \u53ea\u662f\u7e5e\u904e\u554f\u984c\uff08\u8b93\u540c\u4e00\u4f7f\u7528\u8005\u6c38\u9060\u5230\u540c\u4e00\u53f0\uff09\uff0c\u4f46\u5982\u679c\u90a3\u53f0\u4f3a\u670d\u5668\u639b\u4e86\uff0cSession \u9084\u662f\u6703\u4e1f\u5931\u3002\u6839\u672c\u89e3\u6cd5\u662f\u8b93\u61c9\u7528\u8b8a\u6210\u300c\u7121\u72c0\u614b\u300d\u7684\u8a2d\u8a08 \u2014\u2014 \u5c07 Session \u5b58\u5230\u7368\u7acb\u7684 Redis\uff08\u6240\u6709\u4f3a\u670d\u5668\u90fd\u80fd\u8b80\u53d6\uff09\uff0c\u6216\u6539\u7528 JWT Token\uff08\u6bcf\u6b21\u8acb\u6c42\u90fd\u81ea\u5e36\u8eab\u4efd\u8cc7\u8a0a\uff09\u3002\u6587\u7ae0\u660e\u78ba\u6307\u51fa\uff1a\u300c\u6c34\u5e73\u64f4\u5c55\u8981\u6c42\u4f60\u7684\u61c9\u7528\u76e1\u91cf\u662f\u7121\u72c0\u614b\u7684\u300d\uff0c\u9019\u624d\u662f\u6b63\u78ba\u7684\u67b6\u69cb\u65b9\u5411\u3002\",\n        4: \"\u9019\u500b Nginx \u8a2d\u5b9a\u6c92\u6709\u6307\u5b9a\u4efb\u4f55\u6f14\u7b97\u6cd5\uff0c\u56e0\u6b64\u4f7f\u7528\u9810\u8a2d\u7684 Round Robin\u3002\u5982\u679c\u61c9\u7528\u7684 Session \u662f\u5b58\u5728\u6bcf\u53f0\u4f3a\u670d\u5668\u5404\u81ea\u7684\u8a18\u61b6\u9ad4\u88e1\uff0c\u4f7f\u7528\u8005\u7684\u8acb\u6c42\u6703\u88ab\u8f2a\u6d41\u9001\u5230\u4e0d\u540c\u4f3a\u670d\u5668\uff0c\u5c0e\u81f4 Session \u907a\u5931\uff08Server 2 \u4e0d\u77e5\u9053\u4f7f\u7528\u8005\u5728 Server 1 \u5df2\u7d93\u767b\u5165\u4e86\uff09\u3002\u89e3\u6cd5\u53ef\u4ee5\u52a0\u4e0a <code>ip_hash;<\/code> \u8b93\u540c\u4e00\u4f7f\u7528\u8005\u56fa\u5b9a\u5230\u540c\u4e00\u53f0\uff0c\u4f46\u66f4\u597d\u7684\u505a\u6cd5\u662f\u5f9e\u61c9\u7528\u5c64\u9762\u6539\u7528 Redis \u5b58 Session \u6216\u4f7f\u7528 JWT\u3002\",\n        5: \"HPA \u8a2d\u5b9a\u4e2d <code>maxReplicas: 3<\/code> \u4ee3\u8868\u6700\u591a\u53ea\u80fd\u958b\u5230 3 \u53f0\u3002\u7576\u6d41\u91cf\u9ad8\u5cf0\u671f CPU \u5df2\u7d93\u98c6\u5230 95%\uff0c\u4f46 HPA \u5df2\u7d93\u64f4\u5c55\u5230 3 \u53f0\u4e0a\u9650\uff0c\u5c31\u7121\u6cd5\u518d\u589e\u52a0\u4e86\u3002\u6587\u7ae0\u7684 Vibe Coder \u6aa2\u67e5\u9ede\u63d0\u5230\uff1a\u300c\u78ba\u8a8d min \u548c max \u7684\u503c\u662f\u5426\u5408\u7406\u3002\u8a2d\u592a\u9ad8\u6703\u6d6a\u8cbb\u9322\uff0c\u8a2d\u592a\u4f4e\u6703\u64cb\u4e0d\u4f4f\u6d41\u91cf\u3002\u300d\u9019\u88e1 maxReplicas \u8a2d\u5f97\u592a\u4f4e\uff0c\u61c9\u8a72\u6839\u64da\u5be6\u969b\u6d41\u91cf\u9700\u6c42\u8abf\u9ad8\u3002\"\n      };\n\n      function checkAnswerAdv(qNum, selected, correctAns) {\n        const question = document.getElementById(\"qAdv\" + qNum);\n        if (question.classList.contains(\"answered\")) return;\n\n        question.classList.add(\"answered\");\n        answeredAdv++;\n\n        const options = question.querySelectorAll(\".options-adv li\");\n        options.forEach((opt) => {\n          opt.classList.add(\"disabled\");\n          if (opt.textContent.startsWith(correctAns + \".\")) {\n            opt.classList.add(\"show-answer\");\n          }\n        });\n\n        const feedback = document.getElementById(\"fbAdv\" + qNum);\n        if (selected === correctAns) {\n          correctAdv++;\n          feedback.className = \"feedback-adv correct\";\n          feedback.innerHTML = \"\u2713 \u6b63\u78ba\uff01\" + explanationsAdv[qNum];\n        } else {\n          feedback.className = \"feedback-adv wrong\";\n          feedback.innerHTML =\n            \"\u2717 \u932f\u8aa4\u3002\u6b63\u78ba\u7b54\u6848\u662f \" + correctAns + \"\u3002\" + explanationsAdv[qNum];\n          options.forEach((opt) => {\n            if (opt.textContent.startsWith(selected + \".\")) {\n              opt.classList.add(\"wrong\");\n            }\n          });\n        }\n\n        if (answeredAdv === totalAdv) {\n          const scoreDiv = document.getElementById(\"scoreAdv\");\n          scoreDiv.style.display = \"block\";\n          let msg = \"\";\n          if (correctAdv === totalAdv) msg = \"\ud83c\udfaf \u5b8c\u7f8e\uff01\u4f60\u5df2\u7d93\u6e96\u5099\u597d\u5be6\u6230\u4e86\uff01\";\n          else if (correctAdv >= Math.ceil(totalAdv * 0.8))\n            msg = \"\ud83d\udcaa \u5f88\u68d2\uff01\u518d\u8907\u7fd2\u4e00\u4e0b\u932f\u7684\u984c\u76ee\";\n          else if (correctAdv >= Math.ceil(totalAdv * 0.6))\n            msg = \"\ud83d\udcd6 \u5efa\u8b70\u91cd\u8b80\u76f8\u95dc\u6bb5\u843d\u5f8c\u518d\u8a66\u4e00\u6b21\";\n          else msg = \"\ud83d\udd04 \u5efa\u8b70\u91cd\u65b0\u95b1\u8b80\u6587\u4ef6\uff0c\u7279\u5225\u6ce8\u610f\u64cd\u4f5c\u6d41\u7a0b\";\n          scoreDiv.innerHTML =\n            \"\u6e2c\u9a57\u5b8c\u6210\uff01\u5f97\u5206\uff1a\" + correctAdv + \" \/ \" + totalAdv + \"<br>\" + msg;\n        }\n      }\n    \n<\/script>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u6e2c\u9a57\uff1a\u7cfb\u7d71\u64f4\u5c55\u8207\u8ca0\u8f09\u5747\u8861 \u5171 5 \u984c\uff0c\u9ede\u9078\u7b54\u6848\u5f8c\u6703\u7acb\u5373\u986f\u793a\u7d50\u679c 1. Vertical Scaling\uff08\u5782\u76f4\u64f4 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"rolpb_likes":0,"footnotes":""},"categories":[711],"tags":[721,722,720,723,701,707],"class_list":["post-764","post","type-post","status-publish","format-standard","hentry","category-711","tag-horizontal-scaling","tag-load-balancer","tag-vertical-scaling","tag-723","tag-701","tag-707"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":7}},"_links":{"self":[{"href":"https:\/\/blog.itsmygo.uk\/wordpress\/wp-json\/wp\/v2\/posts\/764","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.itsmygo.uk\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.itsmygo.uk\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.itsmygo.uk\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.itsmygo.uk\/wordpress\/wp-json\/wp\/v2\/comments?post=764"}],"version-history":[{"count":0,"href":"https:\/\/blog.itsmygo.uk\/wordpress\/wp-json\/wp\/v2\/posts\/764\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.itsmygo.uk\/wordpress\/wp-json\/wp\/v2\/media?parent=764"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.itsmygo.uk\/wordpress\/wp-json\/wp\/v2\/categories?post=764"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.itsmygo.uk\/wordpress\/wp-json\/wp\/v2\/tags?post=764"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}