{"id":189102,"date":"2024-11-12T04:39:21","date_gmt":"2024-11-11T20:39:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/189102\/"},"modified":"2024-11-12T04:39:22","modified_gmt":"2024-11-11T20:39:22","slug":"%e6%8f%90%e5%8d%87%e7%a8%8b%e5%ba%8f%e6%80%a7%e8%83%bdredis%e5%bf%ab%e5%8f%96%e6%9b%bf%e6%8f%9b%e7%ad%96%e7%95%a5%ef%bc%88redis%e5%bf%ab%e5%8f%96%e6%9b%bf%e6%8f%9b%e7%ad%96%e7%95%a5%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/189102\/","title":{"rendered":"\u63d0\u5347\u7a0b\u5e8f\u6027\u80fdRedis\u5feb\u53d6\u66ff\u63db\u7b56\u7565\uff08redis\u5feb\u53d6\u66ff\u63db\u7b56\u7565\uff09"},"content":{"rendered":"<h1 id=\"%e6%8f%90%e5%8d%87%e7%a8%8b%e5%ba%8f%e6%80%a7%e8%83%bdredis%e5%bf%ab%e5%8f%96%e6%9b%bf%e6%8f%9b%e7%ad%96%e7%95%a5%ef%bc%88redis%e5%bf%ab%e5%8f%96%e6%9b%bf%e6%8f%9b%e7%ad%96%e7%95%a5%ef%bc%89-pLeRoKKDiP\">\u63d0\u5347\u7a0b\u5e8f\u6027\u80fdRedis\u5feb\u53d6\u66ff\u63db\u7b56\u7565\uff08redis\u5feb\u53d6\u66ff\u63db\u7b56\u7565\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u8def\u61c9\u7528\u4e2d\uff0c\u6027\u80fd\u512a\u5316\u662f\u6bcf\u4f4d\u958b\u767c\u8005\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u5fc5\u9808\u9762\u5c0d\u7684\u91cd\u8981\u8ab2\u984c\u3002Redis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u8a18\u61b6\u9ad4\u8cc7\u6599\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5feb\u53d6\u7cfb\u7d71\u4e2d\uff0c\u4ee5\u63d0\u5347\u61c9\u7528\u7a0b\u5f0f\u7684\u97ff\u61c9\u901f\u5ea6\u548c\u6574\u9ad4\u6027\u80fd\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eRedis\u7684\u5feb\u53d6\u66ff\u63db\u7b56\u7565\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7406\u89e3\u5982\u4f55\u9078\u64c7\u5408\u9069\u7684\u7b56\u7565\u4ee5\u63d0\u5347\u7a0b\u5e8f\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%bf%ab%e5%8f%96%e6%9b%bf%e6%8f%9b%e7%ad%96%e7%95%a5%ef%bc%9f-pLeRoKKDiP\">\u4ec0\u9ebc\u662f\u5feb\u53d6\u66ff\u63db\u7b56\u7565\uff1f<\/h2>\n<p>\u5feb\u53d6\u66ff\u63db\u7b56\u7565\u662f\u6307\u5728\u5feb\u53d6\u7a7a\u9593\u6eff\u6642\uff0c\u5982\u4f55\u9078\u64c7\u8981\u79fb\u9664\u7684\u8cc7\u6599\uff0c\u4ee5\u4fbf\u70ba\u65b0\u8cc7\u6599\u9a30\u51fa\u7a7a\u9593\u3002\u6709\u6548\u7684\u66ff\u63db\u7b56\u7565\u80fd\u5920\u6700\u5927\u5316\u5feb\u53d6\u7684\u547d\u4e2d\u7387\uff0c\u5f9e\u800c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u3002Redis\u652f\u6301\u591a\u7a2e\u5feb\u53d6\u66ff\u63db\u7b56\u7565\uff0c\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u5e38\u898b\u7684\u7b56\u7565\uff1a<\/p>\n<h2 id=\"1-lru%ef%bc%88least-recently-used%ef%bc%89-pLeRoKKDiP\">1. LRU\uff08Least Recently Used\uff09<\/h2>\n<p>LRU\u7b56\u7565\u6703\u79fb\u9664\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\u7684\u8cc7\u6599\u3002\u9019\u7a2e\u7b56\u7565\u7684\u57fa\u672c\u5047\u8a2d\u662f\uff0c\u6700\u8fd1\u88ab\u8a2a\u554f\u7684\u8cc7\u6599\u5728\u672a\u4f86\u4e5f\u6709\u8f03\u9ad8\u7684\u88ab\u8a2a\u554f\u6982\u7387\u3002Redis\u7684LRU\u5be6\u73fe\u662f\u57fa\u65bc\u4e00\u500b\u96d9\u5411\u93c8\u8868\uff0c\u80fd\u5920\u5feb\u901f\u5730\u627e\u5230\u6700\u5c11\u4f7f\u7528\u7684\u8cc7\u6599\u4e26\u9032\u884c\u79fb\u9664\u3002<\/p>\n<pre><code>CONFIG SET maxmemory-policy allkeys-lru<\/code><\/pre>\n<p>\u4e0a\u8ff0\u547d\u4ee4\u8a2d\u7f6eRedis\u7684\u5feb\u53d6\u66ff\u63db\u7b56\u7565\u70baLRU\uff0c\u4e26\u4e14\u5141\u8a31\u6240\u6709\u9375\u9032\u884cLRU\u66ff\u63db\u3002<\/p>\n<h2 id=\"2-lfu%ef%bc%88least-frequently-used%ef%bc%89-pLeRoKKDiP\">2. LFU\uff08Least Frequently Used\uff09<\/h2>\n<p>LFU\u7b56\u7565\u5247\u662f\u6839\u64da\u8cc7\u6599\u7684\u4f7f\u7528\u983b\u7387\u4f86\u6c7a\u5b9a\u54ea\u4e9b\u8cc7\u6599\u61c9\u8a72\u88ab\u79fb\u9664\u3002\u9019\u7a2e\u7b56\u7565\u9069\u5408\u65bc\u90a3\u4e9b\u4f7f\u7528\u983b\u7387\u5dee\u7570\u8f03\u5927\u7684\u61c9\u7528\u5834\u666f\u3002Redis\u7684LFU\u5be6\u73fe\u6703\u8a18\u9304\u6bcf\u500b\u9375\u7684\u8a2a\u554f\u6b21\u6578\uff0c\u4e26\u5728\u5feb\u53d6\u6eff\u6642\u79fb\u9664\u8a2a\u554f\u6b21\u6578\u6700\u5c11\u7684\u9375\u3002<\/p>\n<pre><code>CONFIG SET maxmemory-policy allkeys-lfu<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u5c07\u5feb\u53d6\u66ff\u63db\u7b56\u7565\u8a2d\u7f6e\u70baLFU\uff0c\u9069\u5408\u9700\u8981\u9577\u671f\u4fdd\u7559\u9ad8\u983b\u8a2a\u554f\u8cc7\u6599\u7684\u5834\u666f\u3002<\/p>\n<h2 id=\"3-fifo%ef%bc%88first-in-first-out%ef%bc%89-pLeRoKKDiP\">3. FIFO\uff08First In First Out\uff09<\/h2>\n<p>FIFO\u7b56\u7565\u5247\u662f\u6700\u65e9\u9032\u5165\u5feb\u53d6\u7684\u8cc7\u6599\u6700\u5148\u88ab\u79fb\u9664\u3002\u9019\u7a2e\u7b56\u7565\u76f8\u5c0d\u7c21\u55ae\uff0c\u4f46\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\u53ef\u80fd\u4e0d\u5982LRU\u6216LFU\u6709\u6548\uff0c\u56e0\u70ba\u5b83\u4e0d\u8003\u616e\u8cc7\u6599\u7684\u4f7f\u7528\u983b\u7387\u6216\u6700\u8fd1\u4f7f\u7528\u60c5\u6cc1\u3002<\/p>\n<pre><code>CONFIG SET maxmemory-policy volatile-lru<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u8a2d\u7f6e\u70baFIFO\u7b56\u7565\uff0c\u9069\u5408\u65bc\u5c0d\u8cc7\u6599\u4f7f\u7528\u983b\u7387\u8981\u6c42\u4e0d\u9ad8\u7684\u5834\u666f\u3002<\/p>\n<h2 id=\"4-random%ef%bc%88%e9%9a%a8%e6%a9%9f%ef%bc%89-pLeRoKKDiP\">4. Random\uff08\u96a8\u6a5f\uff09<\/h2>\n<p>\u96a8\u6a5f\u7b56\u7565\u6703\u96a8\u6a5f\u9078\u64c7\u4e00\u500b\u8cc7\u6599\u9032\u884c\u79fb\u9664\u3002\u9019\u7a2e\u7b56\u7565\u7684\u512a\u9ede\u662f\u5be6\u73fe\u7c21\u55ae\uff0c\u4f46\u5728\u6027\u80fd\u4e0a\u53ef\u80fd\u4e0d\u5982\u5176\u4ed6\u7b56\u7565\u6709\u6548\u3002<\/p>\n<pre><code>CONFIG SET maxmemory-policy allkeys-random<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u8a2d\u7f6e\u70ba\u96a8\u6a5f\u66ff\u63db\u7b56\u7565\uff0c\u9069\u5408\u65bc\u4e0d\u9700\u8981\u7279\u5225\u8003\u616e\u8cc7\u6599\u4f7f\u7528\u60c5\u6cc1\u7684\u5834\u666f\u3002<\/p>\n<h2 id=\"%e9%81%b8%e6%93%87%e5%90%88%e9%81%a9%e7%9a%84%e6%9b%bf%e6%8f%9b%e7%ad%96%e7%95%a5-pLeRoKKDiP\">\u9078\u64c7\u5408\u9069\u7684\u66ff\u63db\u7b56\u7565<\/h2>\n<p>\u9078\u64c7\u5408\u9069\u7684\u5feb\u53d6\u66ff\u63db\u7b56\u7565\u9700\u8981\u6839\u64da\u5177\u9ad4\u7684\u61c9\u7528\u5834\u666f\u4f86\u6c7a\u5b9a\u3002\u4e00\u822c\u4f86\u8aaa\uff0cLRU\u548cLFU\u662f\u6700\u5e38\u7528\u7684\u7b56\u7565\uff0c\u56e0\u70ba\u5b83\u5011\u80fd\u5920\u6709\u6548\u5730\u63d0\u9ad8\u5feb\u53d6\u547d\u4e2d\u7387\u3002\u958b\u767c\u8005\u61c9\u6839\u64da\u8cc7\u6599\u7684\u7279\u6027\u3001\u8a2a\u554f\u6a21\u5f0f\u4ee5\u53ca\u7cfb\u7d71\u7684\u6027\u80fd\u9700\u6c42\u4f86\u9078\u64c7\u6700\u5408\u9069\u7684\u7b56\u7565\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-pLeRoKKDiP\">\u7d50\u8ad6<\/h2>\n<p>Redis\u7684\u5feb\u53d6\u66ff\u63db\u7b56\u7565\u5c0d\u65bc\u63d0\u5347\u7a0b\u5e8f\u6027\u80fd\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u5408\u7406\u9078\u64c7LRU\u3001LFU\u3001FIFO\u6216\u96a8\u6a5f\u7b56\u7565\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u5feb\u53d6\u8cc7\u6599\uff0c\u5f9e\u800c\u63d0\u9ad8\u61c9\u7528\u7684\u97ff\u61c9\u901f\u5ea6\u548c\u6574\u9ad4\u6027\u80fd\u3002\u4e86\u89e3\u9019\u4e9b\u7b56\u7565\u7684\u7279\u9ede\u548c\u9069\u7528\u5834\u666f\uff0c\u5c07\u6709\u52a9\u65bc\u5728\u5be6\u969b\u958b\u767c\u4e2d\u505a\u51fa\u66f4\u660e\u667a\u7684\u6c7a\u7b56\u3002<\/p>\n<p>\u5982\u9700\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u5229\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u63d0\u5347\u60a8\u7684\u61c9\u7528\u6027\u80fd\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u5feb\u53d6\u66ff\u63db\u7b56\u7565\uff0c\u63d0\u5347\u7a0b\u5e8f\u6027\u80fd\uff0c\u512a\u5316\u6578\u64da\u5b58\u53d6\u6548\u7387\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7a69\u5b9a\u904b\u884c\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-189102","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/189102","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=189102"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/189102\/revisions"}],"predecessor-version":[{"id":189103,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/189102\/revisions\/189103"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=189102"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=189102"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=189102"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}