{"id":157432,"date":"2024-11-02T23:02:23","date_gmt":"2024-11-02T15:02:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/157432\/"},"modified":"2024-11-02T23:02:24","modified_gmt":"2024-11-02T15:02:24","slug":"%e5%b9%b9%e6%b7%a8%e6%95%b8%e6%93%9a-redis-%e9%8d%b5%e5%a4%b1%e6%95%88%e7%ad%96%e7%95%a5%ef%bc%88redis-%e9%8d%b5%e5%a4%b1%e6%95%88%e7%ad%96%e7%95%a5%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/157432\/","title":{"rendered":"\u5e79\u6de8\u6578\u64da Redis \u9375\u5931\u6548\u7b56\u7565\uff08Redis \u9375\u5931\u6548\u7b56\u7565\uff09"},"content":{"rendered":"<h1 id=\"%e5%b9%b9%e6%b7%a8%e6%95%b8%e6%93%9a-redis-%e9%8d%b5%e5%a4%b1%e6%95%88%e7%ad%96%e7%95%a5%ef%bc%88redis-%e9%8d%b5%e5%a4%b1%e6%95%88%e7%ad%96%e7%95%a5%ef%bc%89-rvblpQpLtu\">\u5e79\u6de8\u6578\u64da Redis \u9375\u5931\u6548\u7b56\u7565\uff08Redis \u9375\u5931\u6548\u7b56\u7565\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cRedis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\uff0c\u5305\u62ec\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u5be6\u6642\u6578\u64da\u8655\u7406\u3002Redis \u63d0\u4f9b\u4e86\u591a\u7a2e\u9375\u5931\u6548\u7b56\u7565\uff0c\u9019\u4e9b\u7b56\u7565\u5c0d\u65bc\u7ba1\u7406\u5167\u5b58\u548c\u78ba\u4fdd\u6578\u64da\u7684\u6709\u6548\u6027\u81f3\u95dc\u91cd\u8981\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e Redis \u7684\u9375\u5931\u6548\u7b56\u7565\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7406\u89e3\u548c\u61c9\u7528\u9019\u4e9b\u7b56\u7565\u3002<\/p>\n<h2 id=\"redis-%e9%8d%b5%e5%a4%b1%e6%95%88%e7%ad%96%e7%95%a5%e6%a6%82%e8%bf%b0-rvblpQpLtu\">Redis \u9375\u5931\u6548\u7b56\u7565\u6982\u8ff0<\/h2>\n<p>Redis \u63d0\u4f9b\u4e86\u591a\u7a2e\u9375\u5931\u6548\u7b56\u7565\uff0c\u4e3b\u8981\u7528\u65bc\u63a7\u5236\u5167\u5b58\u4f7f\u7528\u548c\u6578\u64da\u7684\u6709\u6548\u6027\u3002\u9019\u4e9b\u7b56\u7565\u53ef\u4ee5\u5206\u70ba\u5169\u985e\uff1a\u4e3b\u52d5\u5931\u6548\u548c\u88ab\u52d5\u5931\u6548\u3002<\/p>\n<h3 id=\"%e4%b8%bb%e5%8b%95%e5%a4%b1%e6%95%88-rvblpQpLtu\">\u4e3b\u52d5\u5931\u6548<\/h3>\n<p>\u4e3b\u52d5\u5931\u6548\u662f\u6307 Redis \u5728\u5167\u5b58\u4f7f\u7528\u9054\u5230\u4e00\u5b9a\u9650\u5236\u6642\uff0c\u81ea\u52d5\u522a\u9664\u4e00\u4e9b\u9375\u4ee5\u91cb\u653e\u5167\u5b58\u3002\u9019\u7a2e\u7b56\u7565\u901a\u5e38\u5728 Redis \u7684\u914d\u7f6e\u4e2d\u8a2d\u7f6e\uff0c\u4e26\u4e14\u53ef\u4ee5\u9078\u64c7\u4e0d\u540c\u7684\u7b97\u6cd5\u4f86\u6c7a\u5b9a\u54ea\u4e9b\u9375\u61c9\u8a72\u88ab\u522a\u9664\u3002\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u5e38\u898b\u7684\u4e3b\u52d5\u5931\u6548\u7b56\u7565\uff1a<\/p>\n<ul>\n<li><strong>\u96a8\u6a5f\u522a\u9664\uff08Random\uff09<\/strong>\uff1a\u96a8\u6a5f\u9078\u64c7\u4e00\u500b\u9375\u9032\u884c\u522a\u9664\uff0c\u9019\u7a2e\u65b9\u6cd5\u7c21\u55ae\u4f46\u53ef\u80fd\u4e0d\u5920\u9ad8\u6548\u3002<\/li>\n<li><strong>\u6700\u5c11\u4f7f\u7528\uff08Least Recently Used, LRU\uff09<\/strong>\uff1a\u522a\u9664\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\u7684\u9375\uff0c\u9019\u7a2e\u65b9\u6cd5\u80fd\u5920\u4fdd\u7559\u7d93\u5e38\u4f7f\u7528\u7684\u6578\u64da\u3002<\/li>\n<li><strong>\u6700\u5c11\u983b\u7387\u4f7f\u7528\uff08Least Frequently Used, LFU\uff09<\/strong>\uff1a\u522a\u9664\u4f7f\u7528\u983b\u7387\u6700\u4f4e\u7684\u9375\uff0c\u9019\u7a2e\u65b9\u6cd5\u9069\u5408\u65bc\u9700\u8981\u9577\u671f\u4fdd\u7559\u71b1\u9580\u6578\u64da\u7684\u5834\u666f\u3002<\/li>\n<\/ul>\n<h3 id=\"%e8%a2%ab%e5%8b%95%e5%a4%b1%e6%95%88-rvblpQpLtu\">\u88ab\u52d5\u5931\u6548<\/h3>\n<p>\u88ab\u52d5\u5931\u6548\u662f\u6307\u7576\u7528\u6236\u5617\u8a66\u8a2a\u554f\u4e00\u500b\u5df2\u7d93\u904e\u671f\u7684\u9375\u6642\uff0cRedis \u6703\u81ea\u52d5\u522a\u9664\u8a72\u9375\u3002\u9019\u7a2e\u7b56\u7565\u4e0d\u6703\u7acb\u5373\u91cb\u653e\u5167\u5b58\uff0c\u800c\u662f\u7b49\u5230\u9375\u88ab\u8a2a\u554f\u6642\u624d\u9032\u884c\u522a\u9664\u3002\u9019\u6a23\u7684\u8a2d\u8a08\u53ef\u4ee5\u6e1b\u5c11\u4e0d\u5fc5\u8981\u7684\u5167\u5b58\u64cd\u4f5c\uff0c\u4e26\u63d0\u9ad8\u7cfb\u7d71\u7684\u6574\u9ad4\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e8%a8%ad%e7%bd%ae%e9%8d%b5%e7%9a%84%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93-rvblpQpLtu\">\u8a2d\u7f6e\u9375\u7684\u904e\u671f\u6642\u9593<\/h2>\n<p>\u5728 Redis \u4e2d\uff0c\u53ef\u4ee5\u901a\u904e\u591a\u7a2e\u65b9\u5f0f\u8a2d\u7f6e\u9375\u7684\u904e\u671f\u6642\u9593\u3002\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u662f\u4f7f\u7528 <code>EXPIRE<\/code> \u547d\u4ee4\u3002\u9019\u500b\u547d\u4ee4\u53ef\u4ee5\u70ba\u6307\u5b9a\u7684\u9375\u8a2d\u7f6e\u4e00\u500b\u904e\u671f\u6642\u9593\uff08\u4ee5\u79d2\u70ba\u55ae\u4f4d\uff09\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>EXPIRE mykey 300<\/code><\/pre>\n<p>\u4e0a\u8ff0\u547d\u4ee4\u5c07\u4f7f\u5f97 <code>mykey<\/code> \u5728 300 \u79d2\u5f8c\u81ea\u52d5\u5931\u6548\u3002\u6b64\u5916\uff0c\u9084\u53ef\u4ee5\u4f7f\u7528 <code>SETEX<\/code> \u547d\u4ee4\u5728\u8a2d\u7f6e\u9375\u7684\u540c\u6642\u6307\u5b9a\u904e\u671f\u6642\u9593\uff1a<\/p>\n<pre><code>SETEX mykey 300 \"Hello, Redis!\"<\/code><\/pre>\n<h2 id=\"%e9%8d%b5%e5%a4%b1%e6%95%88%e7%ad%96%e7%95%a5%e7%9a%84%e9%81%b8%e6%93%87-rvblpQpLtu\">\u9375\u5931\u6548\u7b56\u7565\u7684\u9078\u64c7<\/h2>\n<p>\u9078\u64c7\u5408\u9069\u7684\u9375\u5931\u6548\u7b56\u7565\u53d6\u6c7a\u65bc\u61c9\u7528\u7684\u5177\u9ad4\u9700\u6c42\u3002\u4f8b\u5982\uff0c\u5728\u4e00\u500b\u9700\u8981\u5feb\u901f\u97ff\u61c9\u7684\u7de9\u5b58\u7cfb\u7d71\u4e2d\uff0c\u4f7f\u7528 LRU \u7b56\u7565\u53ef\u80fd\u66f4\u70ba\u5408\u9069\uff0c\u56e0\u70ba\u5b83\u80fd\u5920\u4fdd\u7559\u6700\u8fd1\u4f7f\u7528\u7684\u6578\u64da\u3002\u800c\u5728\u4e00\u500b\u9700\u8981\u9577\u671f\u5b58\u5132\u7684\u7cfb\u7d71\u4e2d\uff0cLFU \u7b56\u7565\u53ef\u80fd\u66f4\u80fd\u6eff\u8db3\u9700\u6c42\u3002<\/p>\n<p>\u6b64\u5916\uff0c\u958b\u767c\u8005\u9084\u9700\u8981\u8003\u616e\u5167\u5b58\u7684\u4f7f\u7528\u60c5\u6cc1\u548c\u6578\u64da\u7684\u8a2a\u554f\u6a21\u5f0f\uff0c\u4ee5\u4fbf\u9078\u64c7\u6700\u9069\u5408\u7684\u7b56\u7565\u3002\u5b9a\u671f\u76e3\u63a7 Redis \u7684\u6027\u80fd\u6307\u6a19\uff0c\u4e26\u6839\u64da\u5be6\u969b\u60c5\u6cc1\u8abf\u6574\u7b56\u7565\uff0c\u5c07\u6709\u52a9\u65bc\u63d0\u9ad8\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u6548\u7387\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-rvblpQpLtu\">\u7e3d\u7d50<\/h2>\n<p>Redis \u7684\u9375\u5931\u6548\u7b56\u7565\u662f\u5176\u9ad8\u6548\u904b\u884c\u7684\u95dc\u9375\u7d44\u6210\u90e8\u5206\u3002\u901a\u904e\u5408\u7406\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u548c\u9078\u64c7\u5408\u9069\u7684\u5931\u6548\u7b56\u7565\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u7ba1\u7406\u5167\u5b58\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u6709\u6548\u6027\u3002\u7121\u8ad6\u662f\u4f7f\u7528\u4e3b\u52d5\u5931\u6548\u9084\u662f\u88ab\u52d5\u5931\u6548\uff0c\u4e86\u89e3\u9019\u4e9b\u7b56\u7565\u7684\u904b\u4f5c\u539f\u7406\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u61c9\u7528\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\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\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\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>\u4e86\u89e3\u5e79\u6de8\u6578\u64da\u7684Redis\u9375\u5931\u6548\u7b56\u7565\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\uff0c\u78ba\u4fdd\u7cfb\u7d71\u6027\u80fd\u8207\u8cc7\u6e90\u6700\u4f73\u5316\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-157432","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/157432","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=157432"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/157432\/revisions"}],"predecessor-version":[{"id":157433,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/157432\/revisions\/157433"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=157432"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=157432"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=157432"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}