{"id":156826,"date":"2024-11-02T21:01:20","date_gmt":"2024-11-02T13:01:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/156826\/"},"modified":"2024-11-02T21:01:21","modified_gmt":"2024-11-02T13:01:21","slug":"%e5%88%86%e6%9e%90-redis-%e6%ba%90%e7%a2%bc%e6%b7%b1%e5%85%a5%e7%90%86%e8%a7%a3%e7%b7%a9%e5%ad%98%e7%b3%bb%e7%b5%b1%e5%af%a6%e7%8f%be%ef%bc%88redis-%e6%ba%90%e7%a2%bc%e5%af%a6%e7%8f%be%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/156826\/","title":{"rendered":"\u5206\u6790 Redis \u6e90\u78bc\u6df1\u5165\u7406\u89e3\u7de9\u5b58\u7cfb\u7d71\u5be6\u73fe\uff08Redis \u6e90\u78bc\u5be6\u73fe\uff09"},"content":{"rendered":"<h1 id=\"%e5%88%86%e6%9e%90-redis-%e6%ba%90%e7%a2%bc%e6%b7%b1%e5%85%a5%e7%90%86%e8%a7%a3%e7%b7%a9%e5%ad%98%e7%b3%bb%e7%b5%b1%e5%af%a6%e7%8f%be%ef%bc%88redis-%e6%ba%90%e7%a2%bc%e5%af%a6%e7%8f%be%ef%bc%89-ZLScPlomTW\">\u5206\u6790 Redis \u6e90\u78bc\u6df1\u5165\u7406\u89e3\u7de9\u5b58\u7cfb\u7d71\u5be6\u73fe\uff08Redis \u6e90\u78bc\u5be6\u73fe\uff09<\/h1>\n<p>Redis \u662f\u4e00\u500b\u958b\u6e90\u7684\u9ad8\u6027\u80fd\u9375\u503c\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u7cfb\u7d71\u4e2d\u3002\u5b83\u7684\u9ad8\u6548\u6027\u548c\u9748\u6d3b\u6027\u4f7f\u5176\u6210\u70ba\u8a31\u591a\u61c9\u7528\u7a0b\u5e8f\u7684\u9996\u9078\u3002\u672c\u6587\u5c07\u6df1\u5165\u5206\u6790 Redis \u7684\u6e90\u78bc\uff0c\u5e6b\u52a9\u8b80\u8005\u7406\u89e3\u5176\u7de9\u5b58\u7cfb\u7d71\u7684\u5be6\u73fe\u539f\u7406\u3002<\/p>\n<h2 id=\"redis-%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%9e%b6%e6%a7%8b-ZLScPlomTW\">Redis \u7684\u57fa\u672c\u67b6\u69cb<\/h2>\n<p>Redis \u7684\u67b6\u69cb\u4e3b\u8981\u7531\u4ee5\u4e0b\u5e7e\u500b\u90e8\u5206\u7d44\u6210\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u7d50\u69cb\uff1a<\/strong>Redis \u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5305\u62ec\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u548c\u6709\u5e8f\u96c6\u5408\u7b49\u3002<\/li>\n<li><strong>\u4e8b\u4ef6\u5faa\u74b0\uff1a<\/strong>Redis \u4f7f\u7528\u55ae\u7dda\u7a0b\u7684\u4e8b\u4ef6\u5faa\u74b0\u6a21\u578b\u4f86\u8655\u7406\u8acb\u6c42\uff0c\u9019\u4f7f\u5f97\u5b83\u5728\u9ad8\u4e26\u767c\u60c5\u6cc1\u4e0b\u4ecd\u80fd\u4fdd\u6301\u9ad8\u6548\u3002<\/li>\n<li><strong>\u6301\u4e45\u5316\u6a5f\u5236\uff1a<\/strong>Redis \u63d0\u4f9b RDB \u548c AOF \u5169\u7a2e\u6301\u4e45\u5316\u65b9\u5f0f\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u5b89\u5168\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b7%a9%e5%ad%98%e7%b3%bb%e7%b5%b1%e7%9a%84%e5%af%a6%e7%8f%be-ZLScPlomTW\">\u7de9\u5b58\u7cfb\u7d71\u7684\u5be6\u73fe<\/h2>\n<p>Redis \u7684\u7de9\u5b58\u7cfb\u7d71\u4e3b\u8981\u4f9d\u8cf4\u65bc\u5176\u9ad8\u6548\u7684\u5167\u5b58\u7ba1\u7406\u548c\u6578\u64da\u7d50\u69cb\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u95dc\u9375\u7684\u5be6\u73fe\u7d30\u7bc0\uff1a<\/p>\n<h3 id=\"%e5%85%a7%e5%ad%98%e7%ae%a1%e7%90%86-ZLScPlomTW\">\u5167\u5b58\u7ba1\u7406<\/h3>\n<p>Redis \u4f7f\u7528\u81ea\u5b9a\u7fa9\u7684\u5167\u5b58\u5206\u914d\u5668\u4f86\u7ba1\u7406\u5167\u5b58\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u5167\u5b58\u788e\u7247\u4e26\u63d0\u9ad8\u6027\u80fd\u3002Redis \u7684\u5167\u5b58\u5206\u914d\u5668\u4e3b\u8981\u57fa\u65bc jemalloc\uff0c\u9019\u662f\u4e00\u500b\u9ad8\u6548\u7684\u5167\u5b58\u5206\u914d\u5eab\uff0c\u80fd\u5920\u5728\u591a\u7dda\u7a0b\u74b0\u5883\u4e2d\u63d0\u4f9b\u826f\u597d\u7684\u6027\u80fd\u3002<\/p>\n<h3 id=\"%e6%95%b8%e6%93%9a%e5%ad%98%e5%84%b2-ZLScPlomTW\">\u6578\u64da\u5b58\u5132<\/h3>\n<p>\u5728 Redis \u4e2d\uff0c\u6240\u6709\u6578\u64da\u90fd\u5b58\u5132\u5728\u5167\u5b58\u4e2d\uff0c\u9019\u4f7f\u5f97\u8b80\u53d6\u548c\u5beb\u5165\u64cd\u4f5c\u975e\u5e38\u8fc5\u901f\u3002Redis \u4f7f\u7528\u4e00\u7a2e\u7a31\u70ba\u300c\u5b57\u5178\u300d\u7684\u6578\u64da\u7d50\u69cb\u4f86\u5b58\u5132\u9375\u503c\u5c0d\uff0c\u9019\u662f\u4e00\u7a2e\u57fa\u65bc\u54c8\u5e0c\u8868\u7684\u5be6\u73fe\uff0c\u80fd\u5920\u5728\u5e73\u5747\u60c5\u6cc1\u4e0b\u63d0\u4f9b O(1) \u7684\u67e5\u627e\u6642\u9593\u3002<\/p>\n<pre><code>\ntypedef struct dictEntry {\n    void *key; \/\/ \u9375\n    void *val; \/\/ \u503c\n    struct dictEntry *next; \/\/ \u6307\u5411\u4e0b\u4e00\u500b\u689d\u76ee\u7684\u6307\u91dd\n} dictEntry;\n<\/code><\/pre>\n<h3 id=\"%e7%b7%a9%e5%ad%98%e7%ad%96%e7%95%a5-ZLScPlomTW\">\u7de9\u5b58\u7b56\u7565<\/h3>\n<p>Redis \u652f\u6301\u591a\u7a2e\u7de9\u5b58\u7b56\u7565\uff0c\u5305\u62ec LRU\uff08\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\uff09\u3001LFU\uff08\u6700\u4e0d\u5e38\u4f7f\u7528\uff09\u548c TTL\uff08\u751f\u5b58\u6642\u9593\uff09\u7b49\u3002\u9019\u4e9b\u7b56\u7565\u53ef\u4ee5\u5e6b\u52a9\u7528\u6236\u6709\u6548\u5730\u7ba1\u7406\u5167\u5b58\uff0c\u78ba\u4fdd\u6700\u5e38\u7528\u7684\u6578\u64da\u80fd\u5920\u4fdd\u7559\u5728\u5167\u5b58\u4e2d\u3002<\/p>\n<h4 id=\"lru-%e5%af%a6%e7%8f%be-ZLScPlomTW\">LRU \u5be6\u73fe<\/h4>\n<p>Redis \u7684 LRU \u5be6\u73fe\u662f\u901a\u904e\u4e00\u500b\u93c8\u8868\u4f86\u8ddf\u8e64\u6700\u8fd1\u4f7f\u7528\u7684\u9375\u3002\u7576\u4e00\u500b\u9375\u88ab\u8a2a\u554f\u6642\uff0c\u5b83\u6703\u88ab\u79fb\u52d5\u5230\u93c8\u8868\u7684\u982d\u90e8\uff0c\u800c\u7576\u9700\u8981\u91cb\u653e\u5167\u5b58\u6642\uff0c\u5247\u6703\u5f9e\u93c8\u8868\u5c3e\u90e8\u522a\u9664\u6700\u4e45\u672a\u4f7f\u7528\u7684\u9375\u3002<\/p>\n<pre><code>\nvoid updateLRUCache(redisDb *db, robj *key) {\n    \/\/ \u66f4\u65b0 LRU \u9375\u7684\u8a2a\u554f\u6642\u9593\n    \/\/ \u5c07\u9375\u79fb\u52d5\u5230\u93c8\u8868\u7684\u982d\u90e8\n}\n<\/code><\/pre>\n<h2 id=\"%e6%8c%81%e4%b9%85%e5%8c%96%e8%88%87%e6%81%a2%e5%be%a9-ZLScPlomTW\">\u6301\u4e45\u5316\u8207\u6062\u5fa9<\/h2>\n<p>Redis \u63d0\u4f9b\u4e86\u5169\u7a2e\u6301\u4e45\u5316\u65b9\u5f0f\uff1aRDB \u548c AOF\u3002RDB \u662f\u901a\u904e\u5feb\u7167\u7684\u65b9\u5f0f\u5b9a\u671f\u4fdd\u5b58\u6578\u64da\uff0c\u800c AOF \u5247\u662f\u5c07\u6bcf\u6b21\u5beb\u64cd\u4f5c\u8a18\u9304\u5230\u65e5\u8a8c\u4e2d\u3002\u9019\u5169\u7a2e\u65b9\u5f0f\u53ef\u4ee5\u6839\u64da\u7528\u6236\u7684\u9700\u6c42\u9032\u884c\u9078\u64c7\uff0c\u4e26\u4e14\u53ef\u4ee5\u540c\u6642\u4f7f\u7528\u4ee5\u63d0\u9ad8\u6578\u64da\u7684\u5b89\u5168\u6027\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-ZLScPlomTW\">\u7e3d\u7d50<\/h2>\n<p>\u901a\u904e\u5c0d Redis \u6e90\u78bc\u7684\u5206\u6790\uff0c\u6211\u5011\u53ef\u4ee5\u770b\u5230\u5176\u7de9\u5b58\u7cfb\u7d71\u7684\u9ad8\u6548\u5be6\u73fe\u3002Redis \u7684\u5167\u5b58\u7ba1\u7406\u3001\u6578\u64da\u7d50\u69cb\u548c\u7de9\u5b58\u7b56\u7565\u5171\u540c\u69cb\u6210\u4e86\u4e00\u500b\u5f37\u5927\u7684\u7de9\u5b58\u7cfb\u7d71\uff0c\u80fd\u5920\u6eff\u8db3\u9ad8\u4e26\u767c\u7684\u9700\u6c42\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6027\u80fd\u7de9\u5b58\u89e3\u6c7a\u65b9\u6848\u7684\u7528\u6236\u4f86\u8aaa\uff0cRedis \u662f\u4e00\u500b\u503c\u5f97\u8003\u616e\u7684\u9078\u64c7\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u5404\u7a2e\u9700\u6c42\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u9084\u662f\u5176\u4ed6\u5730\u5340\u7684\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u53ef\u9760\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u5206\u6790 Redis \u6e90\u78bc\uff0c\u63a2\u7d22\u5176\u7de9\u5b58\u7cfb\u7d71\u7684\u5be6\u73fe\u7d30\u7bc0\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u7406\u89e3\u9ad8\u6548\u6578\u64da\u5b58\u5132\u8207\u7ba1\u7406\u7684\u539f\u7406\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-156826","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/156826","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=156826"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/156826\/revisions"}],"predecessor-version":[{"id":156827,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/156826\/revisions\/156827"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=156826"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=156826"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=156826"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}