{"id":97928,"date":"2024-10-20T22:20:17","date_gmt":"2024-10-20T14:20:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/97928\/"},"modified":"2024-10-20T22:20:18","modified_gmt":"2024-10-20T14:20:18","slug":"redis%e9%87%87%e7%94%a8lru%e5%af%a6%e7%8f%be%e6%95%b8%e6%93%9a%e6%b7%98%e6%b1%b0%ef%bc%88redis%e6%b7%98%e6%b1%b0%e7%ad%96%e7%95%a5lru%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/97928\/","title":{"rendered":"Redis\u91c7\u7528LRU\u5be6\u73fe\u6578\u64da\u6dd8\u6c70\uff08redis\u6dd8\u6c70\u7b56\u7565lru\uff09"},"content":{"rendered":"<h1 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id=\"redis%e4%b8%ad%e7%9a%84lru%e5%af%a6%e7%8f%be-CQOAYiFIgV\">Redis\u4e2d\u7684LRU\u5be6\u73fe<\/h2>\n<p>\u5728Redis\u4e2d\uff0cLRU\u7b56\u7565\u7684\u5be6\u73fe\u4e3b\u8981\u4f9d\u8cf4\u65bc\u4e00\u500b\u96d9\u5411\u93c8\u8868\u548c\u4e00\u500b\u54c8\u5e0c\u8868\u7684\u7d50\u5408\u3002\u6bcf\u7576\u4e00\u500b\u9375\u88ab\u8a2a\u554f\u6642\uff0cRedis\u6703\u5c07\u8a72\u9375\u79fb\u52d5\u5230\u93c8\u8868\u7684\u982d\u90e8\uff0c\u8868\u793a\u5b83\u662f\u6700\u8fd1\u4f7f\u7528\u7684\u3002\u7576\u9700\u8981\u6dd8\u6c70\u6578\u64da\u6642\uff0cRedis\u6703\u5f9e\u93c8\u8868\u7684\u5c3e\u90e8\u522a\u9664\u9375\uff0c\u9019\u88e1\u7684\u9375\u662f\u6700\u8fd1\u6700\u5c11\u4f7f\u7528\u7684\u3002<\/p>\n<h3 id=\"%e9%85%8d%e7%bd%aelru%e7%ad%96%e7%95%a5-CQOAYiFIgV\">\u914d\u7f6eLRU\u7b56\u7565<\/h3>\n<p>\u8981\u5728Redis\u4e2d\u555f\u7528LRU\u7b56\u7565\uff0c\u60a8\u9700\u8981\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u8a2d\u7f6e\u76f8\u61c9\u7684\u53c3\u6578\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u914d\u7f6e\u9078\u9805\uff1a<\/p>\n<ul>\n<li><code>maxmemory<\/code>: \u8a2d\u7f6eRedis\u7684\u6700\u5927\u5167\u5b58\u9650\u5236\u3002<\/li>\n<li><code>maxmemory-policy<\/code>: \u8a2d\u7f6e\u5167\u5b58\u6dd8\u6c70\u7b56\u7565\uff0c\u53ef\u4ee5\u9078\u64c7<code>volatile-lru<\/code>\u3001<code>allkeys-lru<\/code>\u7b49\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u5728Redis\u914d\u7f6e\u6587\u4ef6\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u884c\u4f86\u555f\u7528LRU\u7b56\u7565\uff1a<\/p>\n<pre><code>maxmemory 256mb\nmaxmemory-policy allkeys-lru<\/code><\/pre>\n<h2 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id=\"lru%e7%ad%96%e7%95%a5%e7%9a%84%e6%8c%91%e6%88%b0-CQOAYiFIgV\">LRU\u7b56\u7565\u7684\u6311\u6230<\/h2>\n<p>\u5118\u7ba1LRU\u7b56\u7565\u6709\u8a31\u591a\u512a\u52e2\uff0c\u4f46\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u4e5f\u5b58\u5728\u4e00\u4e9b\u6311\u6230\uff1a<\/p>\n<ul>\n<li><strong>\u958b\u92b7\u554f\u984c\uff1a<\/strong>\u8ffd\u8e64\u6bcf\u500b\u9375\u7684\u4f7f\u7528\u983b\u7387\u6703\u589e\u52a0\u4e00\u5b9a\u7684\u8a08\u7b97\u958b\u92b7\uff0c\u7279\u5225\u662f\u5728\u9ad8\u4e26\u767c\u7684\u74b0\u5883\u4e2d\u3002<\/li>\n<li><strong>\u4e0d\u9069\u7528\u65bc\u6240\u6709\u5834\u666f\uff1a<\/strong>\u5c0d\u65bc\u67d0\u4e9b\u7279\u5b9a\u7684\u61c9\u7528\u5834\u666f\uff0cLRU\u7b56\u7565\u53ef\u80fd\u7121\u6cd5\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\uff0c\u4f8b\u5982\u7576\u6578\u64da\u8a2a\u554f\u6a21\u5f0f\u4e0d\u5747\u52fb\u6642\u3002<\/li>\n<\/ul>\n<h2 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