{"id":110915,"date":"2024-10-23T23:24:30","date_gmt":"2024-10-23T15:24:30","guid":{"rendered":"https:\/\/server.hk\/cnblog\/110915\/"},"modified":"2024-10-23T23:24:31","modified_gmt":"2024-10-23T15:24:31","slug":"redis-%e5%bf%ab%e5%8f%96%e7%9a%84%e5%9b%9e%e6%94%b6%e7%b0%a1%e6%bd%94%e8%80%8c%e6%9c%89%e6%95%88","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/110915\/","title":{"rendered":"Redis \u5feb\u53d6\u7684\u56de\u6536\u7c21\u6f54\u800c\u6709\u6548"},"content":{"rendered":"<h1 id=\"redis-%e5%bf%ab%e5%8f%96%e7%9a%84%e5%9b%9e%e6%94%b6%e7%b0%a1%e6%bd%94%e8%80%8c%e6%9c%89%e6%95%88-uVUkQdUgjV\">Redis \u5feb\u53d6\u7684\u56de\u6536\u7c21\u6f54\u800c\u6709\u6548<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u8def\u61c9\u7528\u4e2d\uff0c\u5feb\u53d6\u6280\u8853\u5df2\u6210\u70ba\u63d0\u5347\u6027\u80fd\u548c\u7528\u6236\u9ad4\u9a57\u7684\u91cd\u8981\u624b\u6bb5\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\u3002\u672c\u6587\u5c07\u63a2\u8a0e Redis \u5feb\u53d6\u7684\u56de\u6536\u6a5f\u5236\uff0c\u4e26\u4ecb\u7d39\u5176\u7c21\u6f54\u800c\u6709\u6548\u7684\u7279\u6027\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-redis-%e5%bf%ab%e5%8f%96%ef%bc%9f-uVUkQdUgjV\">\u4ec0\u9ebc\u662f Redis \u5feb\u53d6\uff1f<\/h2>\n<p>Redis\uff08Remote Dictionary Server\uff09\u662f\u4e00\u500b\u958b\u6e90\u7684\u9ad8\u6027\u80fd\u9375\u503c\u8cc7\u6599\u5eab\uff0c\u652f\u63f4\u591a\u7a2e\u8cc7\u6599\u7d50\u69cb\uff0c\u5982\u5b57\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\u3002\u7531\u65bc\u5176\u9ad8\u6548\u7684\u8b80\u5beb\u6027\u80fd\uff0cRedis \u5e38\u88ab\u7528\u4f5c\u5feb\u53d6\u7cfb\u7d71\uff0c\u4ee5\u6e1b\u5c11\u5c0d\u5f8c\u7aef\u8cc7\u6599\u5eab\u7684\u8acb\u6c42\uff0c\u5f9e\u800c\u63d0\u9ad8\u61c9\u7528\u7684\u97ff\u61c9\u901f\u5ea6\u3002<\/p>\n<h2 id=\"%e5%bf%ab%e5%8f%96%e7%9a%84%e5%bf%85%e8%a6%81%e6%80%a7-uVUkQdUgjV\">\u5feb\u53d6\u7684\u5fc5\u8981\u6027<\/h2>\n<p>\u5728\u9ad8\u6d41\u91cf\u7684\u61c9\u7528\u4e2d\uff0c\u76f4\u63a5\u8a2a\u554f\u8cc7\u6599\u5eab\u53ef\u80fd\u6703\u5c0e\u81f4\u5ef6\u9072\u548c\u6027\u80fd\u74f6\u9838\u3002\u5feb\u53d6\u53ef\u4ee5\u5c07\u5e38\u7528\u7684\u8cc7\u6599\u5b58\u5132\u5728\u8a18\u61b6\u9ad4\u4e2d\uff0c\u5f9e\u800c\u52a0\u5feb\u8b80\u53d6\u901f\u5ea6\u3002Redis \u7684\u5feb\u53d6\u6a5f\u5236\u4e0d\u50c5\u80fd\u63d0\u9ad8\u6027\u80fd\uff0c\u9084\u80fd\u6e1b\u5c11\u8cc7\u6599\u5eab\u7684\u8ca0\u64d4\u3002<\/p>\n<h2 id=\"redis-%e7%9a%84%e5%9b%9e%e6%94%b6%e6%a9%9f%e5%88%b6-uVUkQdUgjV\">Redis \u7684\u56de\u6536\u6a5f\u5236<\/h2>\n<p>Redis \u63d0\u4f9b\u4e86\u591a\u7a2e\u56de\u6536\u7b56\u7565\uff0c\u4ee5\u7ba1\u7406\u5feb\u53d6\u4e2d\u7684\u8cc7\u6599\u3002\u9019\u4e9b\u7b56\u7565\u4e3b\u8981\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u5b9a\u671f\u56de\u6536\uff08Periodic Reclaim\uff09<\/strong>\uff1aRedis \u6703\u5b9a\u671f\u6aa2\u67e5\u5feb\u53d6\u4e2d\u7684\u8cc7\u6599\uff0c\u4e26\u6839\u64da\u8a2d\u5b9a\u7684\u904e\u671f\u6642\u9593\u81ea\u52d5\u522a\u9664\u904e\u671f\u7684\u9375\u503c\u5c0d\u3002<\/li>\n<li><strong>\u60f0\u6027\u56de\u6536\uff08Lazy Reclaim\uff09<\/strong>\uff1a\u7576\u7528\u6236\u8acb\u6c42\u67d0\u500b\u9375\u6642\uff0cRedis \u6703\u6aa2\u67e5\u8a72\u9375\u662f\u5426\u904e\u671f\u3002\u5982\u679c\u904e\u671f\uff0c\u5247\u522a\u9664\u8a72\u9375\u4e26\u8fd4\u56de nil\u3002<\/li>\n<li><strong>\u6700\u5927\u8a18\u61b6\u9ad4\u9650\u5236\uff08Max Memory Limit\uff09<\/strong>\uff1a\u7528\u6236\u53ef\u4ee5\u8a2d\u5b9a Redis \u7684\u6700\u5927\u8a18\u61b6\u9ad4\u4f7f\u7528\u91cf\uff0c\u7576\u9054\u5230\u6b64\u9650\u5236\u6642\uff0cRedis \u6703\u6839\u64da\u8a2d\u5b9a\u7684\u9a45\u9010\u7b56\u7565\uff08\u5982 LRU\u3001LFU \u7b49\uff09\u81ea\u52d5\u522a\u9664\u4e0d\u5e38\u7528\u7684\u9375\u3002<\/li>\n<\/ul>\n<h3 id=\"%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93%e7%9a%84%e8%a8%ad%e5%ae%9a-uVUkQdUgjV\">\u904e\u671f\u6642\u9593\u7684\u8a2d\u5b9a<\/h3>\n<p>\u5728 Redis \u4e2d\uff0c\u4f7f\u7528\u8005\u53ef\u4ee5\u70ba\u6bcf\u500b\u9375\u8a2d\u5b9a\u904e\u671f\u6642\u9593\u3002\u9019\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u547d\u4ee4\u5be6\u73fe\uff1a<\/p>\n<pre><code>SET mykey \"Hello\"\nEXPIRE mykey 10<\/code><\/pre>\n<p>\u4e0a\u8ff0\u547d\u4ee4\u5c07\u5728 10 \u79d2\u5f8c\u81ea\u52d5\u522a\u9664\u9375 &#8220;mykey&#8221;\u3002\u9019\u7a2e\u65b9\u5f0f\u4f7f\u5f97\u5feb\u53d6\u8cc7\u6599\u4e0d\u6703\u9577\u6642\u9593\u4f54\u7528\u8a18\u61b6\u9ad4\uff0c\u5f9e\u800c\u4fdd\u6301\u7cfb\u7d71\u7684\u9ad8\u6548\u904b\u884c\u3002<\/p>\n<h3 id=\"%e9%a9%85%e9%80%90%e7%ad%96%e7%95%a5%e7%9a%84%e9%81%b8%e6%93%87-uVUkQdUgjV\">\u9a45\u9010\u7b56\u7565\u7684\u9078\u64c7<\/h3>\n<p>Redis \u63d0\u4f9b\u4e86\u591a\u7a2e\u9a45\u9010\u7b56\u7565\uff0c\u4f7f\u7528\u8005\u53ef\u4ee5\u6839\u64da\u5be6\u969b\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u7b56\u7565\u3002\u5e38\u898b\u7684\u9a45\u9010\u7b56\u7565\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>LRU\uff08Least Recently Used\uff09<\/strong>\uff1a\u522a\u9664\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\u7684\u9375\u3002<\/li>\n<li><strong>LFU\uff08Least Frequently Used\uff09<\/strong>\uff1a\u522a\u9664\u4f7f\u7528\u983b\u7387\u6700\u4f4e\u7684\u9375\u3002<\/li>\n<li><strong>Random<\/strong>\uff1a\u96a8\u6a5f\u522a\u9664\u4e00\u500b\u9375\u3002<\/li>\n<\/ul>\n<p>\u9078\u64c7\u5408\u9069\u7684\u9a45\u9010\u7b56\u7565\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u5feb\u53d6\u8cc7\u6599\uff0c\u78ba\u4fdd\u7cfb\u7d71\u5728\u9ad8\u8ca0\u8f09\u4e0b\u4ecd\u80fd\u4fdd\u6301\u7a69\u5b9a\u6027\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-uVUkQdUgjV\">\u7d50\u8ad6<\/h2>\n<p>Redis \u7684\u5feb\u53d6\u56de\u6536\u6a5f\u5236\u7c21\u6f54\u800c\u6709\u6548\uff0c\u901a\u904e\u5b9a\u671f\u56de\u6536\u3001\u60f0\u6027\u56de\u6536\u548c\u6700\u5927\u8a18\u61b6\u9ad4\u9650\u5236\u7b49\u7b56\u7565\uff0c\u80fd\u5920\u6709\u6548\u7ba1\u7406\u5feb\u53d6\u8cc7\u6599\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u80fd\u7684\u61c9\u7528\u4f86\u8aaa\uff0c\u5408\u7406\u5229\u7528 Redis \u7684\u5feb\u53d6\u529f\u80fd\u5c07\u662f\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u7684\u91cd\u8981\u624b\u6bb5\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u548c <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Redis \u5feb\u53d6\u7684\u56de\u6536\u7b56\u7565\u7c21\u6f54\u800c\u6709\u6548\uff0c\u78ba\u4fdd\u8cc7\u6e90\u6700\u4f73\u5229\u7528\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\uff0c\u6e1b\u5c11\u5ef6\u9072\uff0c\u589e\u5f37\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-110915","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/110915","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=110915"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/110915\/revisions"}],"predecessor-version":[{"id":110916,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/110915\/revisions\/110916"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=110915"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=110915"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=110915"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}