{"id":181524,"date":"2024-11-09T17:46:19","date_gmt":"2024-11-09T09:46:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/181524\/"},"modified":"2024-11-09T17:46:20","modified_gmt":"2024-11-09T09:46:20","slug":"%e6%b7%b1%e5%85%a5%e6%b7%ba%e5%87%baredis%e9%99%90%e6%b5%81%e7%9a%84%e5%8a%9f%e8%83%bd%e5%8f%8a%e4%bd%9c%e7%94%a8%ef%bc%88redis%e9%99%90%e6%b5%81%e4%bd%9c%e7%94%a8%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/181524\/","title":{"rendered":"\u6df1\u5165\u6dfa\u51faRedis\u9650\u6d41\u7684\u529f\u80fd\u53ca\u4f5c\u7528\uff08redis\u9650\u6d41\u4f5c\u7528\uff09"},"content":{"rendered":"<h1 id=\"%e6%b7%b1%e5%85%a5%e6%b7%ba%e5%87%baredis%e9%99%90%e6%b5%81%e7%9a%84%e5%8a%9f%e8%83%bd%e5%8f%8a%e4%bd%9c%e7%94%a8-HpJedKBXOC\">\u6df1\u5165\u6dfa\u51faRedis\u9650\u6d41\u7684\u529f\u80fd\u53ca\u4f5c\u7528<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u74b0\u5883\u4e2d\uff0c\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u81f3\u95dc\u91cd\u8981\u3002\u96a8\u8457\u7528\u6236\u6578\u91cf\u7684\u589e\u52a0\uff0c\u5982\u4f55\u6709\u6548\u5730\u7ba1\u7406\u8acb\u6c42\u6210\u70ba\u4e86\u958b\u767c\u8005\u9762\u81e8\u7684\u4e00\u5927\u6311\u6230\u3002Redis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u9650\u6d41\u529f\u80fd\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u63a7\u5236\u8acb\u6c42\u7684\u983b\u7387\uff0c\u4fdd\u8b77\u7cfb\u7d71\u8cc7\u6e90\uff0c\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eRedis\u7684\u9650\u6d41\u529f\u80fd\u53ca\u5176\u4f5c\u7528\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e9%99%90%e6%b5%81%ef%bc%9f-HpJedKBXOC\">\u4ec0\u9ebc\u662f\u9650\u6d41\uff1f<\/h2>\n<p>\u9650\u6d41\u662f\u6307\u5c0d\u7cfb\u7d71\u7684\u8acb\u6c42\u9032\u884c\u63a7\u5236\uff0c\u4ee5\u9632\u6b62\u904e\u591a\u7684\u8acb\u6c42\u540c\u6642\u5230\u9054\u7cfb\u7d71\uff0c\u5f9e\u800c\u5c0e\u81f4\u7cfb\u7d71\u904e\u8f09\u6216\u5d29\u6f70\u3002\u9650\u6d41\u7684\u4e3b\u8981\u76ee\u7684\u662f\u4fdd\u8b77\u5f8c\u7aef\u670d\u52d9\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u7528\u6027\u3002\u5e38\u898b\u7684\u9650\u6d41\u7b56\u7565\u5305\u62ec\u4ee4\u724c\u6876\uff08Token Bucket\uff09\u548c\u6f0f\u6876\uff08Leaky Bucket\uff09\u7b49\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e9%99%90%e6%b5%81%e5%8a%9f%e8%83%bd-HpJedKBXOC\">Redis\u7684\u9650\u6d41\u529f\u80fd<\/h2>\n<p>Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6027\u80fd\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u6578\u64da\u7d50\u69cb\u548c\u547d\u4ee4\uff0c\u9069\u5408\u7528\u65bc\u5be6\u73fe\u9650\u6d41\u529f\u80fd\u3002\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u5e38\u898b\u7684\u9650\u6d41\u5be6\u73fe\u65b9\u5f0f\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8incr%e5%91%bd%e4%bb%a4-HpJedKBXOC\">1. \u4f7f\u7528INCR\u547d\u4ee4<\/h3>\n<p>\u6700\u7c21\u55ae\u7684\u9650\u6d41\u65b9\u5f0f\u662f\u4f7f\u7528Redis\u7684INCR\u547d\u4ee4\u4f86\u8a08\u6578\u8acb\u6c42\u6578\u91cf\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>SET request_count 0\nEXPIRE request_count 60\nINCR request_count\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u9996\u5148\u5c07\u8acb\u6c42\u8a08\u6578\u5668\u521d\u59cb\u5316\u70ba0\uff0c\u4e26\u8a2d\u7f6e\u5176\u904e\u671f\u6642\u9593\u70ba60\u79d2\u3002\u6bcf\u7576\u6709\u8acb\u6c42\u5230\u9054\u6642\uff0c\u6211\u5011\u4f7f\u7528INCR\u547d\u4ee4\u589e\u52a0\u8a08\u6578\u5668\u7684\u503c\u3002\u5982\u679c\u8a08\u6578\u5668\u7684\u503c\u8d85\u904e\u4e86\u9810\u8a2d\u7684\u9650\u5236\uff0c\u6211\u5011\u5c31\u53ef\u4ee5\u62d2\u7d55\u8a72\u8acb\u6c42\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8lua%e8%85%b3%e6%9c%ac-HpJedKBXOC\">2. \u4f7f\u7528Lua\u8173\u672c<\/h3>\n<p>\u70ba\u4e86\u63d0\u9ad8\u6027\u80fd\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528Redis\u7684Lua\u8173\u672c\u4f86\u5be6\u73fe\u66f4\u8907\u96dc\u7684\u9650\u6d41\u908f\u8f2f\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528Lua\u8173\u672c\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>local current\ncurrent = redis.call('INCR', KEYS[1])\nif current == 1 then\n    redis.call('EXPIRE', KEYS[1], ARGV[1])\nend\nreturn current\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u4f7f\u7528Lua\u8173\u672c\u4f86\u539f\u5b50\u6027\u5730\u589e\u52a0\u8a08\u6578\u5668\u4e26\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u3002\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u591a\u500b\u8acb\u6c42\u540c\u6642\u4fee\u6539\u8a08\u6578\u5668\u6642\u51fa\u73fe\u7684\u7af6\u722d\u689d\u4ef6\u3002<\/p>\n<h3 id=\"3-%e4%bb%a4%e7%89%8c%e6%a1%b6%e7%ae%97%e6%b3%95-HpJedKBXOC\">3. \u4ee4\u724c\u6876\u7b97\u6cd5<\/h3>\n<p>\u4ee4\u724c\u6876\u7b97\u6cd5\u662f\u4e00\u7a2e\u5e38\u898b\u7684\u9650\u6d41\u7b56\u7565\uff0cRedis\u53ef\u4ee5\u8f15\u9b06\u5be6\u73fe\u3002\u6bcf\u7576\u8acb\u6c42\u5230\u9054\u6642\uff0c\u7cfb\u7d71\u6703\u6aa2\u67e5\u662f\u5426\u6709\u53ef\u7528\u7684\u4ee4\u724c\uff0c\u5982\u679c\u6709\uff0c\u5247\u5141\u8a31\u8acb\u6c42\u901a\u904e\uff0c\u5426\u5247\u62d2\u7d55\u8acb\u6c42\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u5be6\u73fe\uff1a<\/p>\n<pre><code>local tokens = redis.call('GET', KEYS[1]) or 0\nif tokens &lt; ARGV[1] then\n    return 0\nelse\n    redis.call('DECR', KEYS[1], ARGV[1])\n    return 1\nend\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u6aa2\u67e5\u7576\u524d\u7684\u4ee4\u724c\u6578\u91cf\uff0c\u5982\u679c\u4e0d\u8db3\u5247\u62d2\u7d55\u8acb\u6c42\uff0c\u5426\u5247\u6e1b\u5c11\u4ee4\u724c\u6578\u91cf\u4e26\u5141\u8a31\u8acb\u6c42\u901a\u904e\u3002<\/p>\n<h2 id=\"redis%e9%99%90%e6%b5%81%e7%9a%84%e4%bd%9c%e7%94%a8-HpJedKBXOC\">Redis\u9650\u6d41\u7684\u4f5c\u7528<\/h2>\n<p>Redis\u7684\u9650\u6d41\u529f\u80fd\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u5177\u6709\u591a\u65b9\u9762\u7684\u4f5c\u7528\uff1a<\/p>\n<ul>\n<li><strong>\u4fdd\u8b77\u5f8c\u7aef\u670d\u52d9\uff1a<\/strong>\u901a\u904e\u9650\u5236\u8acb\u6c42\u6578\u91cf\uff0c\u53ef\u4ee5\u6709\u6548\u9632\u6b62\u5f8c\u7aef\u670d\u52d9\u56e0\u904e\u8f09\u800c\u5d29\u6f70\u3002<\/li>\n<li><strong>\u63d0\u5347\u7528\u6236\u9ad4\u9a57\uff1a<\/strong>\u901a\u904e\u5408\u7406\u7684\u9650\u6d41\u7b56\u7565\uff0c\u53ef\u4ee5\u907f\u514d\u56e0\u7cfb\u7d71\u904e\u8f09\u5c0e\u81f4\u7684\u5ef6\u9072\uff0c\u63d0\u5347\u7528\u6236\u7684\u4f7f\u7528\u9ad4\u9a57\u3002<\/li>\n<li><strong>\u8cc7\u6e90\u7ba1\u7406\uff1a<\/strong>\u9650\u6d41\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7ba1\u7406\u7cfb\u7d71\u8cc7\u6e90\uff0c\u78ba\u4fdd\u8cc7\u6e90\u7684\u5408\u7406\u5206\u914d\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-HpJedKBXOC\">\u7e3d\u7d50<\/h2>\n<p>Redis\u7684\u9650\u6d41\u529f\u80fd\u70ba\u958b\u767c\u8005\u63d0\u4f9b\u4e86\u4e00\u7a2e\u6709\u6548\u7684\u65b9\u5f0f\u4f86\u7ba1\u7406\u7cfb\u7d71\u8acb\u6c42\uff0c\u4fdd\u8b77\u5f8c\u7aef\u670d\u52d9\uff0c\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u3002\u901a\u904e\u4f7f\u7528Redis\u7684\u591a\u7a2e\u6578\u64da\u7d50\u69cb\u548c\u547d\u4ee4\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u9748\u6d3b\u5730\u5be6\u73fe\u5404\u7a2e\u9650\u6d41\u7b56\u7565\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6027\u80fd\u548c\u9ad8\u53ef\u7528\u6027\u7684\u61c9\u7528\u4f86\u8aaa\uff0c\u9078\u64c7\u5408\u9069\u7684\u9650\u6d41\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u9650\u6d41\u529f\u80fd\u53ca\u5176\u4f5c\u7528\uff0c\u4e86\u89e3\u5982\u4f55\u6709\u6548\u7ba1\u7406\u6d41\u91cf\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u8207\u7a69\u5b9a\u6027\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-181524","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/181524","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=181524"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/181524\/revisions"}],"predecessor-version":[{"id":181525,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/181524\/revisions\/181525"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=181524"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=181524"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=181524"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}