{"id":128105,"date":"2024-10-26T11:42:23","date_gmt":"2024-10-26T03:42:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/128105\/"},"modified":"2024-10-26T11:42:25","modified_gmt":"2024-10-26T03:42:25","slug":"redis-%e8%a8%ad%e7%bd%ae%e5%a4%b1%e6%95%88%e6%99%82%e9%96%93-%e7%ae%a1%e7%90%86%e8%88%87%e8%aa%bf%e5%84%aa","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/128105\/","title":{"rendered":"Redis \u8a2d\u7f6e\u5931\u6548\u6642\u9593 \u7ba1\u7406\u8207\u8abf\u512a"},"content":{"rendered":"<h1 id=\"redis-%e8%a8%ad%e7%bd%ae%e5%a4%b1%e6%95%88%e6%99%82%e9%96%93-%e7%ae%a1%e7%90%86%e8%88%87%e8%aa%bf%e5%84%aa-VuSLhlCPyH\">Redis \u8a2d\u7f6e\u5931\u6548\u6642\u9593 \u7ba1\u7406\u8207\u8abf\u512a<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cRedis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\uff0c\u5305\u62ec\u7de9\u5b58\u3001\u6703\u8a71\u7ba1\u7406\u548c\u5373\u6642\u6578\u64da\u5206\u6790\u3002\u8a2d\u7f6e\u5931\u6548\u6642\u9593\u662f Redis \u7684\u4e00\u500b\u91cd\u8981\u7279\u6027\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u6709\u6548\u7ba1\u7406\u5167\u5b58\u4f7f\u7528\u548c\u6578\u64da\u7684\u751f\u547d\u5468\u671f\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e Redis \u7684\u5931\u6548\u6642\u9593\u8a2d\u7f6e\u3001\u7ba1\u7406\u53ca\u5176\u8abf\u512a\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%a4%b1%e6%95%88%e6%99%82%e9%96%93%ef%bc%9f-VuSLhlCPyH\">\u4ec0\u9ebc\u662f\u5931\u6548\u6642\u9593\uff1f<\/h2>\n<p>\u5931\u6548\u6642\u9593\uff08TTL, Time To Live\uff09\u662f\u6307\u4e00\u500b\u9375\u5728 Redis \u4e2d\u7684\u6709\u6548\u6642\u9593\u3002\u7576\u8a2d\u7f6e\u4e86\u5931\u6548\u6642\u9593\u5f8c\uff0c\u8a72\u9375\u5728\u8d85\u904e\u6307\u5b9a\u6642\u9593\u5f8c\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\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e8%a8%ad%e7%bd%ae%e5%a4%b1%e6%95%88%e6%99%82%e9%96%93-VuSLhlCPyH\">\u5982\u4f55\u8a2d\u7f6e\u5931\u6548\u6642\u9593<\/h2>\n<p>\u5728 Redis \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u8a2d\u7f6e\u5931\u6548\u6642\u9593\uff1a<\/p>\n<pre><code>EXPIRE key seconds<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u82e5\u8981\u5c07\u9375 &#8220;session:123&#8221; \u7684\u5931\u6548\u6642\u9593\u8a2d\u7f6e\u70ba 300 \u79d2\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>EXPIRE session:123 300<\/code><\/pre>\n<p>\u6b64\u5916\uff0c\u9084\u53ef\u4ee5\u4f7f\u7528 <code>SETEX<\/code> \u547d\u4ee4\u5728\u8a2d\u7f6e\u9375\u503c\u7684\u540c\u6642\u8a2d\u7f6e\u5931\u6548\u6642\u9593\uff1a<\/p>\n<pre><code>SETEX key seconds value<\/code><\/pre>\n<p>\u4f8b\u5982\uff1a<\/p>\n<pre><code>SETEX session:123 300 \"user_data\"<\/code><\/pre>\n<h2 id=\"%e6%9f%a5%e8%a9%a2%e5%a4%b1%e6%95%88%e6%99%82%e9%96%93-VuSLhlCPyH\">\u67e5\u8a62\u5931\u6548\u6642\u9593<\/h2>\n<p>\u8981\u67e5\u8a62\u67d0\u500b\u9375\u7684\u5269\u9918\u5931\u6548\u6642\u9593\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>TTL<\/code> \u547d\u4ee4\uff1a<\/p>\n<pre><code>TTL key<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de\u8a72\u9375\u7684\u5269\u9918\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\u5931\u6548\u6642\u9593\uff0c\u5247\u8fd4\u56de -1\u3002<\/p>\n<h2 id=\"%e5%a4%b1%e6%95%88%e6%99%82%e9%96%93%e7%9a%84%e7%ae%a1%e7%90%86-VuSLhlCPyH\">\u5931\u6548\u6642\u9593\u7684\u7ba1\u7406<\/h2>\n<p>\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u5408\u7406\u7ba1\u7406\u5931\u6548\u6642\u9593\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u7ba1\u7406\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>\u6839\u64da\u696d\u52d9\u9700\u6c42\u8a2d\u7f6e\u5408\u7406\u7684\u5931\u6548\u6642\u9593\uff1a<\/strong>\u4e0d\u540c\u7684\u6578\u64da\u985e\u578b\u548c\u696d\u52d9\u5834\u666f\u9700\u8981\u4e0d\u540c\u7684\u5931\u6548\u6642\u9593\u3002\u4f8b\u5982\uff0c\u6703\u8a71\u6578\u64da\u901a\u5e38\u9700\u8981\u8f03\u77ed\u7684\u5931\u6548\u6642\u9593\uff0c\u800c\u7de9\u5b58\u6578\u64da\u5247\u53ef\u4ee5\u8a2d\u7f6e\u8f03\u9577\u7684\u5931\u6548\u6642\u9593\u3002<\/li>\n<li><strong>\u5b9a\u671f\u6aa2\u67e5\u548c\u8abf\u6574\uff1a<\/strong>\u6839\u64da\u5be6\u969b\u4f7f\u7528\u60c5\u6cc1\uff0c\u5b9a\u671f\u6aa2\u67e5\u6578\u64da\u7684\u4f7f\u7528\u983b\u7387\u548c\u6709\u6548\u6027\uff0c\u9069\u6642\u8abf\u6574\u5931\u6548\u6642\u9593\u3002<\/li>\n<li><strong>\u4f7f\u7528\u6301\u4e45\u5316\u6a5f\u5236\uff1a<\/strong>\u5c0d\u65bc\u9700\u8981\u9577\u671f\u4fdd\u5b58\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528 Redis \u7684\u6301\u4e45\u5316\u529f\u80fd\uff08RDB \u6216 AOF\uff09\uff0c\u4ee5\u9632\u6b62\u6578\u64da\u4e1f\u5931\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a4%b1%e6%95%88%e6%99%82%e9%96%93%e7%9a%84%e8%aa%bf%e5%84%aa-VuSLhlCPyH\">\u5931\u6548\u6642\u9593\u7684\u8abf\u512a<\/h2>\n<p>\u5728\u9ad8\u4e26\u767c\u7684\u74b0\u5883\u4e2d\uff0cRedis \u7684\u5931\u6548\u6642\u9593\u7ba1\u7406\u53ef\u80fd\u6703\u5f71\u97ff\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u8abf\u512a\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u60f0\u6027\u522a\u9664\u548c\u5b9a\u671f\u522a\u9664\uff1a<\/strong>Redis \u6703\u5728\u8a2a\u554f\u9375\u6642\u6aa2\u67e5\u5176\u662f\u5426\u904e\u671f\uff08\u60f0\u6027\u522a\u9664\uff09\uff0c\u540c\u6642\u4e5f\u6703\u5b9a\u671f\u6383\u63cf\u904e\u671f\u9375\uff08\u5b9a\u671f\u522a\u9664\uff09\u3002\u53ef\u4ee5\u6839\u64da\u5be6\u969b\u60c5\u6cc1\u8abf\u6574\u9019\u5169\u7a2e\u7b56\u7565\u7684\u53c3\u6578\uff0c\u4ee5\u5e73\u8861\u6027\u80fd\u548c\u5167\u5b58\u4f7f\u7528\u3002<\/li>\n<li><strong>\u76e3\u63a7\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\uff1a<\/strong>\u4f7f\u7528 <code>INFO memory<\/code> \u547d\u4ee4\u76e3\u63a7 Redis \u7684\u5167\u5b58\u4f7f\u7528\u60c5\u6cc1\uff0c\u6839\u64da\u9700\u8981\u8abf\u6574\u5931\u6548\u6642\u9593\u6216\u589e\u52a0\u5167\u5b58\u3002<\/li>\n<li><strong>\u5408\u7406\u8a2d\u7f6e maxmemory \u7b56\u7565\uff1a<\/strong>\u7576 Redis \u7684\u5167\u5b58\u9054\u5230\u4e0a\u9650\u6642\uff0c\u53ef\u4ee5\u8a2d\u7f6e\u4e0d\u540c\u7684\u6dd8\u6c70\u7b56\u7565\uff08\u5982 LRU\u3001LFU \u7b49\uff09\uff0c\u4ee5\u78ba\u4fdd\u7cfb\u7d71\u7a69\u5b9a\u904b\u884c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-VuSLhlCPyH\">\u7e3d\u7d50<\/h2>\n<p>Redis \u7684\u5931\u6548\u6642\u9593\u8a2d\u7f6e\u548c\u7ba1\u7406\u662f\u78ba\u4fdd\u7cfb\u7d71\u6027\u80fd\u548c\u6578\u64da\u6709\u6548\u6027\u7684\u95dc\u9375\u3002\u901a\u904e\u5408\u7406\u8a2d\u7f6e\u5931\u6548\u6642\u9593\u3001\u5b9a\u671f\u6aa2\u67e5\u548c\u8abf\u6574\uff0c\u4ee5\u53ca\u9032\u884c\u6027\u80fd\u8abf\u512a\uff0c\u53ef\u4ee5\u6709\u6548\u63d0\u5347 Redis \u7684\u4f7f\u7528\u6548\u7387\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u5b58\u5132\u548c\u7ba1\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u5c07\u6709\u52a9\u65bc\u66f4\u597d\u5730\u904b\u884c Redis\uff0c\u5be6\u73fe\u66f4\u9ad8\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728Redis\u4e2d\u8a2d\u7f6e\u5931\u6548\u6642\u9593\uff0c\u9032\u884c\u6709\u6548\u7684\u7ba1\u7406\u8207\u8abf\u512a\uff0c\u63d0\u5347\u6027\u80fd\u8207\u8cc7\u6e90\u5229\u7528\u7387\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-128105","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128105","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=128105"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128105\/revisions"}],"predecessor-version":[{"id":128106,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128105\/revisions\/128106"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=128105"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=128105"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=128105"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}