{"id":182018,"date":"2024-11-09T20:25:19","date_gmt":"2024-11-09T12:25:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/182018\/"},"modified":"2024-11-09T20:25:19","modified_gmt":"2024-11-09T12:25:19","slug":"%e6%b7%b1%e5%85%a5%e6%8e%a2%e7%b4%a2redis%e4%b8%ad%e7%9a%84%e9%81%8e%e6%9c%9f%e7%ad%96%e7%95%a5%ef%bc%88redis%e6%9f%a5%e7%9c%8b%e9%81%8e%e6%9c%9f%e7%ad%96%e7%95%a5%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/182018\/","title":{"rendered":"\u6df1\u5165\u63a2\u7d22Redis\u4e2d\u7684\u904e\u671f\u7b56\u7565\uff08redis\u67e5\u770b\u904e\u671f\u7b56\u7565\uff09"},"content":{"rendered":"<h1 id=\"%e6%b7%b1%e5%85%a5%e6%8e%a2%e7%b4%a2redis%e4%b8%ad%e7%9a%84%e9%81%8e%e6%9c%9f%e7%ad%96%e7%95%a5%ef%bc%88redis%e6%9f%a5%e7%9c%8b%e9%81%8e%e6%9c%9f%e7%ad%96%e7%95%a5%ef%bc%89-NFZbEevfzI\">\u6df1\u5165\u63a2\u7d22Redis\u4e2d\u7684\u904e\u671f\u7b56\u7565\uff08redis\u67e5\u770b\u904e\u671f\u7b56\u7565\uff09<\/h1>\n<p>Redis\u662f\u4e00\u500b\u9ad8\u6548\u80fd\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u3001\u6578\u64da\u5eab\u548c\u6d88\u606f\u4ee3\u7406\u7b49\u5834\u666f\u3002\u5176\u5f37\u5927\u7684\u6578\u64da\u7d50\u69cb\u548c\u9748\u6d3b\u7684\u64cd\u4f5c\u4f7f\u5f97Redis\u6210\u70ba\u958b\u767c\u8005\u7684\u71b1\u9580\u9078\u64c7\u3002\u5728Redis\u4e2d\uff0c\u904e\u671f\u7b56\u7565\u662f\u4e00\u500b\u91cd\u8981\u7684\u7279\u6027\uff0c\u80fd\u5920\u5e6b\u52a9\u7ba1\u7406\u5167\u5b58\u4f7f\u7528\u548c\u6578\u64da\u7684\u6709\u6548\u6027\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eRedis\u4e2d\u7684\u904e\u671f\u7b56\u7565\u53ca\u5176\u67e5\u770b\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e9%81%8e%e6%9c%9f%e7%ad%96%e7%95%a5%e6%a6%82%e8%bf%b0-NFZbEevfzI\">Redis\u7684\u904e\u671f\u7b56\u7565\u6982\u8ff0<\/h2>\n<p>\u5728Redis\u4e2d\uff0c\u904e\u671f\u7b56\u7565\u5141\u8a31\u7528\u6236\u70ba\u9375\u8a2d\u7f6e\u751f\u5b58\u6642\u9593\uff08TTL, Time To Live\uff09\u3002\u4e00\u65e6\u9375\u7684TTL\u5230\u671f\uff0c\u8a72\u9375\u5c07\u81ea\u52d5\u88ab\u522a\u9664\u3002\u9019\u4e00\u7279\u6027\u5c0d\u65bc\u9700\u8981\u5b9a\u671f\u6e05\u7406\u904e\u671f\u6578\u64da\u7684\u61c9\u7528\u5834\u666f\u5c24\u70ba\u91cd\u8981\uff0c\u4f8b\u5982\u6703\u8a71\u7ba1\u7406\u3001\u7de9\u5b58\u6578\u64da\u7b49\u3002<\/p>\n<h3 id=\"%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93%e7%9a%84%e8%a8%ad%e7%bd%ae-NFZbEevfzI\">\u904e\u671f\u6642\u9593\u7684\u8a2d\u7f6e<\/h3>\n<p>\u7528\u6236\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u70ba\u9375\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff1a<\/p>\n<pre><code>EXPIRE key seconds<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u82e5\u8981\u70ba\u9375\u201csession:123\u201d\u8a2d\u7f6e60\u79d2\u7684\u904e\u671f\u6642\u9593\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>EXPIRE session:123 60<\/code><\/pre>\n<p>\u6b64\u5916\uff0cRedis\u9084\u63d0\u4f9b\u4e86\u5176\u4ed6\u547d\u4ee4\u4f86\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li><code>PEXPIRE<\/code>\uff1a\u4ee5\u6beb\u79d2\u70ba\u55ae\u4f4d\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u3002<\/li>\n<li><code>EXPIREAT<\/code>\uff1a\u8a2d\u7f6e\u9375\u7684\u904e\u671f\u6642\u9593\u70ba\u7279\u5b9a\u7684\u6642\u9593\u6233\u3002<\/li>\n<li><code>PEXPIREAT<\/code>\uff1a\u4ee5\u6beb\u79d2\u70ba\u55ae\u4f4d\u8a2d\u7f6e\u9375\u7684\u904e\u671f\u6642\u9593\u70ba\u7279\u5b9a\u7684\u6642\u9593\u6233\u3002<\/li>\n<\/ul>\n<h3 id=\"%e9%81%8e%e6%9c%9f%e7%ad%96%e7%95%a5%e7%9a%84%e5%af%a6%e7%8f%be%e6%96%b9%e5%bc%8f-NFZbEevfzI\">\u904e\u671f\u7b56\u7565\u7684\u5be6\u73fe\u65b9\u5f0f<\/h3>\n<p>Redis\u4f7f\u7528\u5169\u7a2e\u4e3b\u8981\u7684\u904e\u671f\u7b56\u7565\u4f86\u7ba1\u7406\u904e\u671f\u9375\uff1a<\/p>\n<ul>\n<li><strong>\u60f0\u6027\u522a\u9664\uff08Lazy Deletion\uff09<\/strong>\uff1a\u7576\u7528\u6236\u8a2a\u554f\u4e00\u500b\u9375\u6642\uff0cRedis\u6703\u6aa2\u67e5\u8a72\u9375\u662f\u5426\u904e\u671f\u3002\u5982\u679c\u904e\u671f\uff0c\u5247\u522a\u9664\u8a72\u9375\u3002\u9019\u7a2e\u65b9\u5f0f\u7684\u512a\u9ede\u662f\u6e1b\u5c11\u4e86\u5167\u5b58\u7684\u4f7f\u7528\uff0c\u4f46\u53ef\u80fd\u6703\u5c0e\u81f4\u904e\u671f\u9375\u5728\u5167\u5b58\u4e2d\u5b58\u5728\u4e00\u6bb5\u6642\u9593\u3002<\/li>\n<li><strong>\u5b9a\u671f\u522a\u9664\uff08Periodic Deletion\uff09<\/strong>\uff1aRedis\u6703\u5b9a\u671f\u96a8\u6a5f\u6aa2\u67e5\u4e00\u90e8\u5206\u9375\uff0c\u522a\u9664\u904e\u671f\u7684\u9375\u3002\u9019\u6a23\u53ef\u4ee5\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u907f\u514d\u5167\u5b58\u7684\u81a8\u8139\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%9f%a5%e7%9c%8b%e9%81%8e%e6%9c%9f%e7%ad%96%e7%95%a5-NFZbEevfzI\">\u67e5\u770b\u904e\u671f\u7b56\u7565<\/h2>\n<p>\u8981\u67e5\u770bRedis\u4e2d\u67d0\u500b\u9375\u7684\u904e\u671f\u6642\u9593\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>TTL key<\/code><\/pre>\n<p>\u9019\u500b\u547d\u4ee4\u6703\u8fd4\u56de\u8a72\u9375\u7684\u5269\u9918\u751f\u5b58\u6642\u9593\uff08\u4ee5\u79d2\u70ba\u55ae\u4f4d\uff09\u3002\u5982\u679c\u9375\u4e0d\u5b58\u5728\uff0c\u5247\u8fd4\u56de-2\uff1b\u5982\u679c\u9375\u5b58\u5728\u4f46\u6c92\u6709\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff0c\u5247\u8fd4\u56de-1\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u82e5\u8981\u67e5\u770b\u201csession:123\u201d\u7684\u5269\u9918\u751f\u5b58\u6642\u9593\uff0c\u53ef\u4ee5\u4f7f\u7528\uff1a<\/p>\n<pre><code>TTL session:123<\/code><\/pre>\n<h3 id=\"%e7%9b%a3%e6%8e%a7%e9%81%8e%e6%9c%9f%e9%8d%b5-NFZbEevfzI\">\u76e3\u63a7\u904e\u671f\u9375<\/h3>\n<p>Redis\u9084\u63d0\u4f9b\u4e86\u4e8b\u4ef6\u901a\u77e5\u529f\u80fd\uff0c\u5141\u8a31\u7528\u6236\u76e3\u63a7\u904e\u671f\u9375\u7684\u522a\u9664\u4e8b\u4ef6\u3002\u7528\u6236\u53ef\u4ee5\u901a\u904e\u8a2d\u7f6e\u914d\u7f6e\u53c3\u6578\u4f86\u555f\u7528\u9019\u4e00\u529f\u80fd\uff1a<\/p>\n<pre><code>notify-keyspace-events Ex<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u7576\u9375\u904e\u671f\u6642\uff0cRedis\u6703\u767c\u9001\u76f8\u61c9\u7684\u4e8b\u4ef6\u901a\u77e5\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6839\u64da\u9700\u8981\u9032\u884c\u76f8\u61c9\u7684\u8655\u7406\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-NFZbEevfzI\">\u7e3d\u7d50<\/h2>\n<p>Redis\u7684\u904e\u671f\u7b56\u7565\u70ba\u7528\u6236\u63d0\u4f9b\u4e86\u9748\u6d3b\u7684\u6578\u64da\u7ba1\u7406\u65b9\u5f0f\uff0c\u80fd\u5920\u6709\u6548\u5730\u63a7\u5236\u5167\u5b58\u4f7f\u7528\u548c\u6578\u64da\u7684\u6709\u6548\u6027\u3002\u901a\u904e\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u3001\u67e5\u770b\u5269\u9918\u751f\u5b58\u6642\u9593\u4ee5\u53ca\u76e3\u63a7\u904e\u671f\u4e8b\u4ef6\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u66f4\u597d\u5730\u7ba1\u7406\u61c9\u7528\u4e2d\u7684\u6578\u64da\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u80fd\u548c\u7a69\u5b9a\u6027\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u5c07\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u4e86\u89e3Redis\u7684\u904e\u671f\u7b56\u7565\uff0c\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u61c9\u7528\u7684\u6027\u80fd\u548c\u7528\u6236\u9ad4\u9a57\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u63a2\u7d22Redis\u4e2d\u7684\u904e\u671f\u7b56\u7565\uff0c\u4e86\u89e3\u5982\u4f55\u67e5\u770b\u548c\u7ba1\u7406\u9375\u7684\u904e\u671f\u6642\u9593\uff0c\u63d0\u5347\u6578\u64da\u5b58\u5132\u6548\u7387\u8207\u6027\u80fd\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-182018","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/182018","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=182018"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/182018\/revisions"}],"predecessor-version":[{"id":182019,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/182018\/revisions\/182019"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=182018"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=182018"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=182018"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}