{"id":119897,"date":"2024-10-24T23:59:18","date_gmt":"2024-10-24T15:59:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/119897\/"},"modified":"2024-10-24T23:59:20","modified_gmt":"2024-10-24T15:59:20","slug":"redis-%e5%bf%ab%e5%8f%96%e7%b3%bb%e7%b5%b1%e5%91%bd%e4%b8%ad%e7%8e%87%e7%9b%a3%e6%b8%ac%e5%af%a6%e8%b8%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/119897\/","title":{"rendered":"Redis \u5feb\u53d6\u7cfb\u7d71\u547d\u4e2d\u7387\u76e3\u6e2c\u5be6\u8e10"},"content":{"rendered":"<h1 id=\"redis-%e5%bf%ab%e5%8f%96%e7%b3%bb%e7%b5%b1%e5%91%bd%e4%b8%ad%e7%8e%87%e7%9b%a3%e6%b8%ac%e5%af%a6%e8%b8%90-fKMfZhuTkF\">Redis \u5feb\u53d6\u7cfb\u7d71\u547d\u4e2d\u7387\u76e3\u6e2c\u5be6\u8e10<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u8def\u61c9\u7528\u4e2d\uff0c\u5feb\u53d6\u7cfb\u7d71\u626e\u6f14\u8457\u81f3\u95dc\u91cd\u8981\u7684\u89d2\u8272\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\u672c\u6587\u5c07\u63a2\u8a0e Redis \u5feb\u53d6\u7cfb\u7d71\u7684\u547d\u4e2d\u7387\u76e3\u6e2c\u5be6\u8e10\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7406\u89e3\u548c\u512a\u5316\u5176\u5feb\u53d6\u7b56\u7565\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-redis-%e5%bf%ab%e5%8f%96%e7%b3%bb%e7%b5%b1%ef%bc%9f-fKMfZhuTkF\">\u4ec0\u9ebc\u662f Redis \u5feb\u53d6\u7cfb\u7d71\uff1f<\/h2>\n<p>Redis \u662f\u4e00\u7a2e\u958b\u6e90\u7684\u9ad8\u6027\u80fd\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u901a\u5e38\u7528\u4f5c\u5feb\u53d6\u5c64\u3002\u5b83\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\uff0c\u4e26\u4e14\u5177\u6709\u6301\u4e45\u5316\u529f\u80fd\u3002\u7531\u65bc\u5176\u9ad8\u6548\u7684\u8b80\u53d6\u548c\u5beb\u5165\u6027\u80fd\uff0cRedis \u88ab\u5ee3\u6cdb\u61c9\u7528\u65bc\u9700\u8981\u5feb\u901f\u6578\u64da\u5b58\u53d6\u7684\u5834\u666f\u4e2d\u3002<\/p>\n<h2 id=\"%e5%91%bd%e4%b8%ad%e7%8e%87%e7%9a%84%e5%ae%9a%e7%be%a9-fKMfZhuTkF\">\u547d\u4e2d\u7387\u7684\u5b9a\u7fa9<\/h2>\n<p>\u5728\u5feb\u53d6\u7cfb\u7d71\u4e2d\uff0c\u547d\u4e2d\u7387\u662f\u6307\u5f9e\u5feb\u53d6\u4e2d\u6210\u529f\u8b80\u53d6\u6578\u64da\u7684\u8acb\u6c42\u6bd4\u4f8b\u3002\u547d\u4e2d\u7387\u7684\u8a08\u7b97\u516c\u5f0f\u5982\u4e0b\uff1a<\/p>\n<pre><code>\u547d\u4e2d\u7387 = (\u5feb\u53d6\u547d\u4e2d\u6b21\u6578) \/ (\u5feb\u53d6\u547d\u4e2d\u6b21\u6578 + \u5feb\u53d6\u672a\u547d\u4e2d\u6b21\u6578)<\/code><\/pre>\n<p>\u9ad8\u547d\u4e2d\u7387\u610f\u5473\u8457\u5927\u591a\u6578\u8acb\u6c42\u90fd\u80fd\u5f9e\u5feb\u53d6\u4e2d\u7372\u5f97\u6578\u64da\uff0c\u5f9e\u800c\u6e1b\u5c11\u5c0d\u5f8c\u7aef\u6578\u64da\u5eab\u7684\u8acb\u6c42\uff0c\u63d0\u9ad8\u7cfb\u7d71\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e7%9b%a3%e6%b8%ac%e5%91%bd%e4%b8%ad%e7%8e%87%e7%9a%84%e9%87%8d%e8%a6%81%e6%80%a7-fKMfZhuTkF\">\u76e3\u6e2c\u547d\u4e2d\u7387\u7684\u91cd\u8981\u6027<\/h2>\n<p>\u76e3\u6e2c Redis \u7684\u547d\u4e2d\u7387\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u4e86\u89e3\u5feb\u53d6\u7684\u6709\u6548\u6027\uff0c\u4e26\u53ca\u6642\u8abf\u6574\u5feb\u53d6\u7b56\u7565\u3002\u4ee5\u4e0b\u662f\u5e7e\u500b\u76e3\u6e2c\u547d\u4e2d\u7387\u7684\u91cd\u8981\u539f\u56e0\uff1a<\/p>\n<ul>\n<li><strong>\u6027\u80fd\u512a\u5316\uff1a<\/strong>\u901a\u904e\u5206\u6790\u547d\u4e2d\u7387\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8b58\u5225\u51fa\u54ea\u4e9b\u6578\u64da\u61c9\u8a72\u88ab\u5feb\u53d6\uff0c\u5f9e\u800c\u63d0\u9ad8\u6574\u9ad4\u6027\u80fd\u3002<\/li>\n<li><strong>\u8cc7\u6e90\u7ba1\u7406\uff1a<\/strong>\u4e86\u89e3\u5feb\u53d6\u7684\u4f7f\u7528\u60c5\u6cc1\u53ef\u4ee5\u5e6b\u52a9\u5408\u7406\u5206\u914d\u8cc7\u6e90\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u958b\u92b7\u3002<\/li>\n<li><strong>\u6545\u969c\u6392\u67e5\uff1a<\/strong>\u7576\u7cfb\u7d71\u6027\u80fd\u4e0b\u964d\u6642\uff0c\u547d\u4e2d\u7387\u7684\u8b8a\u5316\u53ef\u4ee5\u4f5c\u70ba\u6545\u969c\u6392\u67e5\u7684\u91cd\u8981\u6307\u6a19\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e7%9b%a3%e6%b8%ac-redis-%e7%9a%84%e5%91%bd%e4%b8%ad%e7%8e%87-fKMfZhuTkF\">\u5982\u4f55\u76e3\u6e2c Redis \u7684\u547d\u4e2d\u7387<\/h2>\n<p>Redis \u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u76e3\u6e2c\u547d\u4e2d\u7387\uff0c\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u5e38\u898b\u7684\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8-redis-%e5%91%bd%e4%bb%a4-fKMfZhuTkF\">1. \u4f7f\u7528 Redis \u547d\u4ee4<\/h3>\n<p>Redis \u63d0\u4f9b\u4e86 <code>INFO<\/code> \u547d\u4ee4\uff0c\u53ef\u4ee5\u7372\u53d6\u591a\u7a2e\u7d71\u8a08\u4fe1\u606f\uff0c\u5305\u62ec\u547d\u4e2d\u7387\u3002\u57f7\u884c\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>INFO stats<\/code><\/pre>\n<p>\u5728\u8fd4\u56de\u7684\u7d50\u679c\u4e2d\uff0c\u53ef\u4ee5\u627e\u5230 <code>keyspace_hits<\/code> \u548c <code>keyspace_misses<\/code>\uff0c\u5206\u5225\u8868\u793a\u5feb\u53d6\u547d\u4e2d\u548c\u672a\u547d\u4e2d\u7684\u6b21\u6578\u3002\u6839\u64da\u9019\u4e9b\u6578\u64da\uff0c\u53ef\u4ee5\u8a08\u7b97\u51fa\u547d\u4e2d\u7387\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e7%9b%a3%e6%8e%a7%e5%b7%a5%e5%85%b7-fKMfZhuTkF\">2. \u4f7f\u7528\u76e3\u63a7\u5de5\u5177<\/h3>\n<p>\u8a31\u591a\u7b2c\u4e09\u65b9\u76e3\u63a7\u5de5\u5177\uff08\u5982 Prometheus\u3001Grafana\uff09\u53ef\u4ee5\u8207 Redis \u96c6\u6210\uff0c\u63d0\u4f9b\u53ef\u8996\u5316\u7684\u547d\u4e2d\u7387\u76e3\u6e2c\u3002\u9019\u4e9b\u5de5\u5177\u53ef\u4ee5\u5b9a\u671f\u6293\u53d6 Redis \u7684\u7d71\u8a08\u6578\u64da\uff0c\u4e26\u751f\u6210\u5716\u8868\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u76f4\u89c0\u5730\u4e86\u89e3\u5feb\u53d6\u7684\u6027\u80fd\u3002<\/p>\n<h3 id=\"3-%e8%87%aa%e5%ae%9a%e7%be%a9%e7%9b%a3%e6%b8%ac%e8%85%b3%e6%9c%ac-fKMfZhuTkF\">3. \u81ea\u5b9a\u7fa9\u76e3\u6e2c\u8173\u672c<\/h3>\n<p>\u958b\u767c\u8005\u4e5f\u53ef\u4ee5\u7de8\u5beb\u81ea\u5b9a\u7fa9\u8173\u672c\uff0c\u5b9a\u671f\u67e5\u8a62 Redis \u7684\u7d71\u8a08\u4fe1\u606f\uff0c\u4e26\u5c07\u7d50\u679c\u8a18\u9304\u5230\u6578\u64da\u5eab\u6216\u65e5\u8a8c\u4e2d\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684 Python \u793a\u4f8b\uff1a<\/p>\n<pre><code>import redis\n\nr = redis.Redis(host='localhost', port=6379, db=0)\nstats = r.info('stats')\nhits = stats['keyspace_hits']\nmisses = stats['keyspace_misses']\nhit_rate = hits \/ (hits + misses) * 100\n\nprint(f'\u547d\u4e2d\u7387: {hit_rate:.2f}%')<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-fKMfZhuTkF\">\u7d50\u8ad6<\/h2>\n<p>Redis \u5feb\u53d6\u7cfb\u7d71\u7684\u547d\u4e2d\u7387\u76e3\u6e2c\u662f\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u7684\u91cd\u8981\u624b\u6bb5\u3002\u901a\u904e\u6709\u6548\u7684\u76e3\u6e2c\u548c\u5206\u6790\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u512a\u5316\u5feb\u53d6\u7b56\u7565\uff0c\u63d0\u5347\u61c9\u7528\u7684\u97ff\u61c9\u901f\u5ea6\u548c\u7528\u6236\u9ad4\u9a57\u3002\u96a8\u8457\u6280\u8853\u7684\u767c\u5c55\uff0c\u6301\u7e8c\u95dc\u6ce8\u5feb\u53d6\u7cfb\u7d71\u7684\u6027\u80fd\u5c07\u6210\u70ba\u6bcf\u4f4d\u958b\u767c\u8005\u7684\u91cd\u8981\u4efb\u52d9\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u548c\u5feb\u53d6\u7cfb\u7d71\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u5feb\u53d6\u7cfb\u7d71\u547d\u4e2d\u7387\u76e3\u6e2c\u7684\u6700\u4f73\u5be6\u8e10\uff0c\u63d0\u5347\u6027\u80fd\u8207\u6548\u7387\uff0c\u512a\u5316\u6578\u64da\u5b58\u53d6\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-119897","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/119897","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=119897"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/119897\/revisions"}],"predecessor-version":[{"id":119898,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/119897\/revisions\/119898"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=119897"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=119897"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=119897"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}