{"id":189280,"date":"2024-11-12T06:19:19","date_gmt":"2024-11-11T22:19:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/189280\/"},"modified":"2024-11-12T06:19:21","modified_gmt":"2024-11-11T22:19:21","slug":"%e9%80%9a%e9%81%8eredis%e6%8e%a7%e5%88%b6%e6%b6%88%e8%b2%bb%e9%80%9f%e5%ba%a6%ef%bc%8c%e4%bf%9d%e9%9a%9c%e6%9c%8d%e5%8b%99%e8%b3%aa%e9%87%8f%ef%bc%88redis%e6%b6%88%e8%b2%bb%e9%80%9f%e5%ba%a6%e9%99%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/189280\/","title":{"rendered":"\u901a\u904eRedis\u63a7\u5236\u6d88\u8cbb\u901f\u5ea6\uff0c\u4fdd\u969c\u670d\u52d9\u8cea\u91cf\uff08redis\u6d88\u8cbb\u901f\u5ea6\u9650\u5236\uff09"},"content":{"rendered":"<h1 id=\"%e9%80%9a%e9%81%8eredis%e6%8e%a7%e5%88%b6%e6%b6%88%e8%b2%bb%e9%80%9f%e5%ba%a6%ef%bc%8c%e4%bf%9d%e9%9a%9c%e6%9c%8d%e5%8b%99%e8%b3%aa%e9%87%8f%ef%bc%88redis%e6%b6%88%e8%b2%bb%e9%80%9f%e5%ba%a6%e9%99%90-hPfsEtXjNp\">\u901a\u904eRedis\u63a7\u5236\u6d88\u8cbb\u901f\u5ea6\uff0c\u4fdd\u969c\u670d\u52d9\u8cea\u91cf\uff08redis\u6d88\u8cbb\u901f\u5ea6\u9650\u5236\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u74b0\u5883\u4e2d\uff0c\u670d\u52d9\u8cea\u91cf\u7684\u4fdd\u969c\u5c0d\u65bc\u4efb\u4f55\u4e00\u500b\u5728\u7dda\u696d\u52d9\u4f86\u8aaa\u90fd\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u96a8\u8457\u7528\u6236\u9700\u6c42\u7684\u589e\u52a0\uff0c\u5982\u4f55\u6709\u6548\u5730\u7ba1\u7406\u548c\u63a7\u5236\u8cc7\u6e90\u7684\u6d88\u8017\u6210\u70ba\u4e86\u8a31\u591a\u958b\u767c\u8005\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u9762\u81e8\u7684\u4e00\u5927\u6311\u6230\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u4e0d\u50c5\u80fd\u5920\u63d0\u4f9b\u5feb\u901f\u7684\u6578\u64da\u5b58\u53d6\uff0c\u9084\u80fd\u901a\u904e\u6d88\u8cbb\u901f\u5ea6\u9650\u5236\u4f86\u5e6b\u52a9\u958b\u767c\u8005\u63a7\u5236\u8cc7\u6e90\u7684\u4f7f\u7528\uff0c\u5f9e\u800c\u4fdd\u969c\u670d\u52d9\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e6%b6%88%e8%b2%bb%e9%80%9f%e5%ba%a6%e9%99%90%e5%88%b6%ef%bc%9f-hPfsEtXjNp\">\u4ec0\u9ebc\u662f\u6d88\u8cbb\u901f\u5ea6\u9650\u5236\uff1f<\/h2>\n<p>\u6d88\u8cbb\u901f\u5ea6\u9650\u5236\u662f\u6307\u5c0d\u65bc\u67d0\u4e00\u8cc7\u6e90\u7684\u4f7f\u7528\u901f\u5ea6\u9032\u884c\u63a7\u5236\uff0c\u4ee5\u9632\u6b62\u7cfb\u7d71\u56e0\u904e\u5ea6\u6d88\u8017\u800c\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\u6216\u5d29\u6f70\u3002\u5728Redis\u4e2d\uff0c\u9019\u4e00\u6982\u5ff5\u901a\u5e38\u61c9\u7528\u65bc\u6d88\u606f\u968a\u5217\u6216\u4efb\u52d9\u8655\u7406\u7cfb\u7d71\u4e2d\uff0c\u901a\u904e\u9650\u5236\u6d88\u8cbb\u8005\u7684\u6d88\u8cbb\u901f\u5ea6\u4f86\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u904b\u884c\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e5%9f%ba%e6%9c%ac%e7%89%b9%e6%80%a7-hPfsEtXjNp\">Redis\u7684\u57fa\u672c\u7279\u6027<\/h2>\n<p>Redis\u662f\u4e00\u500b\u958b\u6e90\u7684\u9ad8\u6027\u80fd\u9375\u503c\u6578\u64da\u5eab\uff0c\u5177\u6709\u4ee5\u4e0b\u5e7e\u500b\u7279\u9ede\uff1a<\/p>\n<ul>\n<li>\u9ad8\u6548\u7684\u6578\u64da\u5b58\u53d6\uff1aRedis\u5c07\u6578\u64da\u5b58\u5132\u5728\u5167\u5b58\u4e2d\uff0c\u8b80\u53d6\u548c\u5beb\u5165\u901f\u5ea6\u6975\u5feb\u3002<\/li>\n<li>\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff1a\u5305\u62ec\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\uff0c\u9748\u6d3b\u6027\u9ad8\u3002<\/li>\n<li>\u6301\u4e45\u5316\u9078\u9805\uff1a\u652f\u6301RDB\u548cAOF\u5169\u7a2e\u6301\u4e45\u5316\u65b9\u5f0f\uff0c\u4fdd\u969c\u6578\u64da\u5b89\u5168\u3002<\/li>\n<li>\u8c50\u5bcc\u7684\u529f\u80fd\uff1a\u652f\u6301\u4e8b\u52d9\u3001\u8a02\u95b1\/\u767c\u5e03\u3001Lua\u8173\u672c\u7b49\u529f\u80fd\uff0c\u9069\u7528\u7bc4\u570d\u5ee3\u6cdb\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8redis%e4%b8%ad%e5%af%a6%e7%8f%be%e6%b6%88%e8%b2%bb%e9%80%9f%e5%ba%a6%e9%99%90%e5%88%b6-hPfsEtXjNp\">\u5982\u4f55\u5728Redis\u4e2d\u5be6\u73fe\u6d88\u8cbb\u901f\u5ea6\u9650\u5236<\/h2>\n<p>\u5728Redis\u4e2d\u5be6\u73fe\u6d88\u8cbb\u901f\u5ea6\u9650\u5236\u7684\u5e38\u898b\u65b9\u6cd5\u662f\u4f7f\u7528\u4ee4\u724c\u6876\u7b97\u6cd5\u6216\u6f0f\u6876\u7b97\u6cd5\u3002\u9019\u4e9b\u7b97\u6cd5\u53ef\u4ee5\u6709\u6548\u5730\u63a7\u5236\u6d88\u8cbb\u8005\u7684\u8acb\u6c42\u901f\u7387\uff0c\u5f9e\u800c\u907f\u514d\u7cfb\u7d71\u904e\u8f09\u3002<\/p>\n<h3 id=\"%e4%bb%a4%e7%89%8c%e6%a1%b6%e7%ae%97%e6%b3%95-hPfsEtXjNp\">\u4ee4\u724c\u6876\u7b97\u6cd5<\/h3>\n<p>\u4ee4\u724c\u6876\u7b97\u6cd5\u7684\u57fa\u672c\u601d\u60f3\u662f\uff1a\u7cfb\u7d71\u4ee5\u56fa\u5b9a\u7684\u901f\u7387\u751f\u6210\u4ee4\u724c\uff0c\u6d88\u8cbb\u8005\u5728\u9032\u884c\u8acb\u6c42\u6642\u9700\u8981\u6d88\u8017\u4ee4\u724c\u3002\u7576\u4ee4\u724c\u7528\u5b8c\u6642\uff0c\u8acb\u6c42\u5c07\u88ab\u62d2\u7d55\u6216\u5ef6\u9072\uff0c\u76f4\u5230\u6709\u65b0\u7684\u4ee4\u724c\u751f\u6210\u3002<\/p>\n<pre><code>\n# \u4ee4\u724c\u6876\u7b97\u6cd5\u7684\u7c21\u55ae\u5be6\u73fe\nSET rate_limit:tokens 10\nSET rate_limit:last_time 0\n\n# \u6bcf\u79d2\u751f\u621010\u500b\u4ee4\u724c\nif (current_time - last_time) &gt; 1:\n    SET rate_limit:tokens 10\n    SET rate_limit:last_time current_time\n\n# \u6d88\u8cbb\u8005\u8acb\u6c42\nif (GET rate_limit:tokens) &gt; 0:\n    DECR rate_limit:tokens\n    # \u5141\u8a31\u8acb\u6c42\nelse:\n    # \u62d2\u7d55\u8acb\u6c42\n<\/code><\/pre>\n<h3 id=\"%e6%bc%8f%e6%a1%b6%e7%ae%97%e6%b3%95-hPfsEtXjNp\">\u6f0f\u6876\u7b97\u6cd5<\/h3>\n<p>\u6f0f\u6876\u7b97\u6cd5\u5247\u662f\u5c07\u8acb\u6c42\u653e\u5165\u4e00\u500b\u56fa\u5b9a\u5927\u5c0f\u7684\u6876\u4e2d\uff0c\u6876\u4ee5\u56fa\u5b9a\u7684\u901f\u7387\u6f0f\u51fa\u8acb\u6c42\u3002\u7576\u6876\u6eff\u6642\uff0c\u65b0\u7684\u8acb\u6c42\u5c07\u88ab\u4e1f\u68c4\u3002<\/p>\n<pre><code>\n# \u6f0f\u6876\u7b97\u6cd5\u7684\u7c21\u55ae\u5be6\u73fe\nSET leak_bucket:capacity 10\nSET leak_bucket:current 0\n\n# \u6bcf\u79d2\u6f0f\u51fa1\u500b\u8acb\u6c42\nif (current_time - last_leak_time) &gt; 1:\n    DECR leak_bucket:current\n\n# \u6d88\u8cbb\u8005\u8acb\u6c42\nif (GET leak_bucket:current) &lt; (GET leak_bucket:capacity):\n    INCR leak_bucket:current\n    # \u5141\u8a31\u8acb\u6c42\nelse:\n    # \u62d2\u7d55\u8acb\u6c42\n<\/code><\/pre>\n<h2 id=\"%e5%af%a6%e9%9a%9b%e6%87%89%e7%94%a8%e6%a1%88%e4%be%8b-hPfsEtXjNp\">\u5be6\u969b\u61c9\u7528\u6848\u4f8b<\/h2>\n<p>\u8a31\u591a\u4f01\u696d\u5728\u4f7f\u7528Redis\u9032\u884c\u6d88\u606f\u968a\u5217\u7ba1\u7406\u6642\uff0c\u6703\u9047\u5230\u6d88\u8cbb\u8005\u6d88\u8cbb\u901f\u5ea6\u904e\u5feb\u7684\u554f\u984c\u3002\u901a\u904e\u5be6\u65bd\u6d88\u8cbb\u901f\u5ea6\u9650\u5236\uff0c\u9019\u4e9b\u4f01\u696d\u80fd\u5920\u6709\u6548\u5730\u63a7\u5236\u8acb\u6c42\u7684\u6d41\u91cf\uff0c\u5f9e\u800c\u907f\u514d\u7cfb\u7d71\u5d29\u6f70\u3002\u4f8b\u5982\uff0c\u4e00\u5bb6\u96fb\u5b50\u5546\u52d9\u5e73\u53f0\u5728\u4fc3\u92b7\u671f\u9593\uff0c\u901a\u904eRedis\u7684\u6d88\u8cbb\u901f\u5ea6\u9650\u5236\uff0c\u6210\u529f\u5730\u5c07\u9ad8\u5cf0\u671f\u7684\u8acb\u6c42\u6d41\u91cf\u63a7\u5236\u5728\u53ef\u63a5\u53d7\u7684\u7bc4\u570d\u5167\uff0c\u4fdd\u969c\u4e86\u7528\u6236\u7684\u8cfc\u7269\u9ad4\u9a57\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-hPfsEtXjNp\">\u7d50\u8ad6<\/h2>\n<p>\u901a\u904eRedis\u63a7\u5236\u6d88\u8cbb\u901f\u5ea6\uff0c\u4e0d\u50c5\u80fd\u5920\u63d0\u9ad8\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\uff0c\u9084\u80fd\u5920\u6709\u6548\u5730\u7ba1\u7406\u8cc7\u6e90\u7684\u4f7f\u7528\u3002\u7121\u8ad6\u662f\u4f7f\u7528\u4ee4\u724c\u6876\u7b97\u6cd5\u9084\u662f\u6f0f\u6876\u7b97\u6cd5\uff0c\u958b\u767c\u8005\u90fd\u53ef\u4ee5\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u5be6\u73fe\u65b9\u5f0f\u3002\u96a8\u8457\u696d\u52d9\u9700\u6c42\u7684\u589e\u9577\uff0c\u5408\u7406\u7684\u6d88\u8cbb\u901f\u5ea6\u9650\u5236\u5c07\u6210\u70ba\u4fdd\u969c\u670d\u52d9\u8cea\u91cf\u7684\u91cd\u8981\u624b\u6bb5\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u548c\u5176\u4ed6\u670d\u52d9\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u901a\u904eRedis\u63a7\u5236\u6d88\u8cbb\u901f\u5ea6\uff0c\u5be6\u73fe\u9ad8\u6548\u7684\u6d41\u91cf\u7ba1\u7406\uff0c\u4fdd\u969c\u670d\u52d9\u8cea\u91cf\uff0c\u907f\u514d\u904e\u8f09\uff0c\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-189280","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/189280","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=189280"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/189280\/revisions"}],"predecessor-version":[{"id":189281,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/189280\/revisions\/189281"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=189280"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=189280"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=189280"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}