{"id":119587,"date":"2024-10-24T23:35:29","date_gmt":"2024-10-24T15:35:29","guid":{"rendered":"https:\/\/server.hk\/cnblog\/119587\/"},"modified":"2024-10-24T23:35:30","modified_gmt":"2024-10-24T15:35:30","slug":"redis-%e5%bf%ab%e5%8f%96%e7%93%a6%e8%a7%a3%e8%a7%a3%e6%b1%ba%e6%93%8a%e7%a9%bf%e9%98%b2%e6%ad%a2%e8%a1%80%e5%b4%a9","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/119587\/","title":{"rendered":"Redis \u5feb\u53d6\u74e6\u89e3\u89e3\u6c7a\u64ca\u7a7f\u9632\u6b62\u8840\u5d29"},"content":{"rendered":"<h1 id=\"redis-%e5%bf%ab%e5%8f%96%e7%93%a6%e8%a7%a3%e8%a7%a3%e6%b1%ba%e6%93%8a%e7%a9%bf%e9%98%b2%e6%ad%a2%e8%a1%80%e5%b4%a9-LfuZKRKZzw\">Redis \u5feb\u53d6\u74e6\u89e3\u89e3\u6c7a\u64ca\u7a7f\u9632\u6b62\u8840\u5d29<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u8def\u74b0\u5883\u4e2d\uff0c\u5feb\u901f\u7684\u6578\u64da\u5b58\u53d6\u5c0d\u65bc\u61c9\u7528\u7a0b\u5f0f\u7684\u6027\u80fd\u81f3\u95dc\u91cd\u8981\u3002Redis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5feb\u53d6\u89e3\u6c7a\u65b9\u6848\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\u3002\u7136\u800c\uff0c\u7576\u5927\u91cf\u8acb\u6c42\u540c\u6642\u6e67\u5165\u6642\uff0cRedis \u5feb\u53d6\u53ef\u80fd\u6703\u906d\u9047\u74e6\u89e3\uff0c\u5c0e\u81f4\u5f8c\u7aef\u6578\u64da\u5eab\u7684\u904e\u8f09\uff0c\u9019\u7a2e\u60c5\u6cc1\u88ab\u7a31\u70ba\u300c\u64ca\u7a7f\u300d\u3002\u672c\u6587\u5c07\u63a2\u8a0e Redis \u5feb\u53d6\u74e6\u89e3\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\uff0c\u4ee5\u9632\u6b62\u7cfb\u7d71\u51fa\u73fe\u8840\u5d29\u7684\u60c5\u6cc1\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%bf%ab%e5%8f%96%e6%93%8a%e7%a9%bf%ef%bc%9f-LfuZKRKZzw\">\u4ec0\u9ebc\u662f\u5feb\u53d6\u64ca\u7a7f\uff1f<\/h2>\n<p>\u5feb\u53d6\u64ca\u7a7f\u662f\u6307\u7576\u67d0\u500b\u7279\u5b9a\u7684\u6578\u64da\u5728\u5feb\u53d6\u4e2d\u4e0d\u5b58\u5728\u6642\uff0c\u6240\u6709\u8acb\u6c42\u90fd\u76f4\u63a5\u6253\u5230\u5f8c\u7aef\u6578\u64da\u5eab\uff0c\u9019\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u5eab\u77ac\u9593\u627f\u53d7\u5927\u91cf\u8acb\u6c42\uff0c\u5f9e\u800c\u9020\u6210\u6027\u80fd\u4e0b\u964d\u6216\u5d29\u6f70\u3002\u9019\u7a2e\u60c5\u6cc1\u901a\u5e38\u767c\u751f\u5728\u71b1\u9580\u6578\u64da\u7684\u5feb\u53d6\u5931\u6548\u6642\uff0c\u5c24\u5176\u662f\u5728\u9ad8\u6d41\u91cf\u7684\u61c9\u7528\u4e2d\u3002<\/p>\n<h2 id=\"%e5%bf%ab%e5%8f%96%e7%93%a6%e8%a7%a3%e7%9a%84%e5%8e%9f%e5%9b%a0-LfuZKRKZzw\">\u5feb\u53d6\u74e6\u89e3\u7684\u539f\u56e0<\/h2>\n<ul>\n<li><strong>\u5feb\u53d6\u5931\u6548\uff1a<\/strong>\u7576\u5feb\u53d6\u4e2d\u7684\u6578\u64da\u904e\u671f\u6216\u88ab\u522a\u9664\u6642\uff0c\u8acb\u6c42\u5c07\u76f4\u63a5\u767c\u9001\u5230\u5f8c\u7aef\u6578\u64da\u5eab\u3002<\/li>\n<li><strong>\u9ad8\u4e26\u767c\u8acb\u6c42\uff1a<\/strong>\u5728\u9ad8\u6d41\u91cf\u7684\u60c5\u6cc1\u4e0b\uff0c\u7279\u5b9a\u6578\u64da\u7684\u8acb\u6c42\u91cf\u6fc0\u589e\uff0c\u5c0e\u81f4\u5f8c\u7aef\u6578\u64da\u5eab\u7121\u6cd5\u627f\u53d7\u3002<\/li>\n<li><strong>\u4e0d\u5747\u8861\u7684\u6578\u64da\u8a2a\u554f\uff1a<\/strong>\u67d0\u4e9b\u6578\u64da\u7684\u8a2a\u554f\u983b\u7387\u9060\u9ad8\u65bc\u5176\u4ed6\u6578\u64da\uff0c\u9020\u6210\u5feb\u53d6\u7684\u96c6\u4e2d\u5931\u6548\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e5%bf%ab%e5%8f%96%e6%93%8a%e7%a9%bf%e7%9a%84%e7%ad%96%e7%95%a5-LfuZKRKZzw\">\u89e3\u6c7a\u5feb\u53d6\u64ca\u7a7f\u7684\u7b56\u7565<\/h2>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e4%ba%92%e6%96%a5%e9%8e%96-LfuZKRKZzw\">1. \u4f7f\u7528\u4e92\u65a5\u9396<\/h3>\n<p>\u5728\u8acb\u6c42\u5230\u9054\u5f8c\u7aef\u6578\u64da\u5eab\u4e4b\u524d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e92\u65a5\u9396\u4f86\u63a7\u5236\u8acb\u6c42\u7684\u6d41\u91cf\u3002\u7576\u4e00\u500b\u8acb\u6c42\u6b63\u5728\u67e5\u8a62\u6578\u64da\u6642\uff0c\u5176\u4ed6\u8acb\u6c42\u5c07\u88ab\u963b\u585e\uff0c\u76f4\u5230\u6578\u64da\u88ab\u6210\u529f\u52a0\u8f09\u5230\u5feb\u53d6\u4e2d\u3002\u9019\u6a23\u53ef\u4ee5\u6709\u6548\u6e1b\u5c11\u5c0d\u5f8c\u7aef\u6578\u64da\u5eab\u7684\u58d3\u529b\u3002<\/p>\n<pre><code>\n# \u4f2a\u4ee3\u7801\u793a\u4f8b\nif (cache.get(key) is None):\n    lock.acquire()\n    if (cache.get(key) is None):  # \u518d\u6b21\u6aa2\u67e5\n        data = db.query(key)\n        cache.set(key, data)\n    lock.release()\n<\/code><\/pre>\n<h3 id=\"2-%e8%a8%ad%e7%bd%ae%e5%90%88%e7%90%86%e7%9a%84%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93-LfuZKRKZzw\">2. \u8a2d\u7f6e\u5408\u7406\u7684\u904e\u671f\u6642\u9593<\/h3>\n<p>\u5c0d\u65bc\u71b1\u9580\u6578\u64da\uff0c\u53ef\u4ee5\u8003\u616e\u8a2d\u7f6e\u8f03\u77ed\u7684\u904e\u671f\u6642\u9593\uff0c\u4e26\u4f7f\u7528\u9810\u52a0\u8f09\u7b56\u7565\uff0c\u63d0\u524d\u5c07\u6578\u64da\u52a0\u8f09\u5230\u5feb\u53d6\u4e2d\u3002\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u5feb\u53d6\u5931\u6548\u7684\u6a5f\u6703\uff0c\u4e26\u4fdd\u6301\u6578\u64da\u7684\u53ef\u7528\u6027\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e5%b8%83%e9%9a%86%e9%81%8e%e6%bf%be%e5%99%a8-LfuZKRKZzw\">3. \u4f7f\u7528\u5e03\u9686\u904e\u6ffe\u5668<\/h3>\n<p>\u5e03\u9686\u904e\u6ffe\u5668\u662f\u4e00\u7a2e\u7a7a\u9593\u6548\u7387\u9ad8\u7684\u6578\u64da\u7d50\u69cb\uff0c\u53ef\u4ee5\u7528\u4f86\u6aa2\u67e5\u67d0\u500b\u5143\u7d20\u662f\u5426\u5b58\u5728\u65bc\u96c6\u5408\u4e2d\u3002\u901a\u904e\u5728\u5feb\u53d6\u524d\u4f7f\u7528\u5e03\u9686\u904e\u6ffe\u5668\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u6e1b\u5c11\u5c0d\u5f8c\u7aef\u6578\u64da\u5eab\u7684\u8acb\u6c42\u3002<\/p>\n<pre><code>\n# \u4f2a\u4ee3\u7801\u793a\u4f8b\nif (bloom_filter.contains(key)):\n    if (cache.get(key) is None):\n        data = db.query(key)\n        cache.set(key, data)\n<\/code><\/pre>\n<h3 id=\"4-%e7%86%b1%e9%bb%9e%e6%95%b8%e6%93%9a%e7%9a%84%e9%a0%90%e5%8a%a0%e8%bc%89-LfuZKRKZzw\">4. \u71b1\u9ede\u6578\u64da\u7684\u9810\u52a0\u8f09<\/h3>\n<p>\u5c0d\u65bc\u9810\u671f\u6703\u6210\u70ba\u71b1\u9ede\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u5728\u7cfb\u7d71\u555f\u52d5\u6642\u6216\u5b9a\u671f\u9032\u884c\u9810\u52a0\u8f09\uff0c\u5c07\u9019\u4e9b\u6578\u64da\u63d0\u524d\u653e\u5165\u5feb\u53d6\u4e2d\uff0c\u5f9e\u800c\u6e1b\u5c11\u8acb\u6c42\u76f4\u63a5\u6253\u5230\u5f8c\u7aef\u6578\u64da\u5eab\u7684\u6a5f\u6703\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-LfuZKRKZzw\">\u7d50\u8ad6<\/h2>\n<p>\u5feb\u53d6\u64ca\u7a7f\u662f\u4e00\u500b\u5e38\u898b\u7684\u554f\u984c\uff0c\u4f46\u901a\u904e\u5408\u7406\u7684\u8a2d\u8a08\u548c\u7b56\u7565\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u6e1b\u5c11\u5176\u5c0d\u7cfb\u7d71\u6027\u80fd\u7684\u5f71\u97ff\u3002\u4f7f\u7528\u4e92\u65a5\u9396\u3001\u5408\u7406\u7684\u904e\u671f\u6642\u9593\u3001\u5e03\u9686\u904e\u6ffe\u5668\u4ee5\u53ca\u71b1\u9ede\u6578\u64da\u7684\u9810\u52a0\u8f09\u7b49\u65b9\u6cd5\uff0c\u90fd\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u5728\u4f7f\u7528 Redis \u5feb\u53d6\u6642\uff0c\u907f\u514d\u7cfb\u7d71\u51fa\u73fe\u8840\u5d29\u7684\u60c5\u6cc1\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u53ca\u5176\u61c9\u7528\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u5feb\u53d6\u74e6\u89e3\u89e3\u6c7a\u65b9\u6848\uff0c\u9632\u6b62\u7cfb\u7d71\u64ca\u7a7f\u8207\u8840\u5d29\uff0c\u63d0\u5347\u61c9\u7528\u6548\u80fd\u8207\u7a69\u5b9a\u6027\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-119587","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/119587","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=119587"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/119587\/revisions"}],"predecessor-version":[{"id":119592,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/119587\/revisions\/119592"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=119587"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=119587"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=119587"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}