{"id":161427,"date":"2024-11-04T06:20:26","date_gmt":"2024-11-03T22:20:26","guid":{"rendered":"https:\/\/server.hk\/cnblog\/161427\/"},"modified":"2024-11-04T06:20:27","modified_gmt":"2024-11-03T22:20:27","slug":"%e5%9f%ba%e6%96%bc-redis-%e7%9a%84%e7%86%b1-key-%e8%87%aa%e5%8b%95%e8%ad%98%e5%88%a5%e6%8a%80%e8%a1%93%ef%bc%88redis-%e7%86%b1-key-%e8%ad%98%e5%88%a5%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/161427\/","title":{"rendered":"\u57fa\u65bc Redis \u7684\u71b1 Key \u81ea\u52d5\u8b58\u5225\u6280\u8853\uff08redis \u71b1 key \u8b58\u5225\uff09"},"content":{"rendered":"<h1 id=\"%e5%9f%ba%e6%96%bc-redis-%e7%9a%84%e7%86%b1-key-%e8%87%aa%e5%8b%95%e8%ad%98%e5%88%a5%e6%8a%80%e8%a1%93%ef%bc%88redis-%e7%86%b1-key-%e8%ad%98%e5%88%a5%ef%bc%89-RtXpLRzwGe\">\u57fa\u65bc Redis \u7684\u71b1 Key \u81ea\u52d5\u8b58\u5225\u6280\u8853\uff08redis \u71b1 key \u8b58\u5225\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u6027\u80fd\u548c\u6548\u7387\u662f\u6bcf\u500b\u61c9\u7528\u7a0b\u5e8f\u6210\u529f\u7684\u95dc\u9375\u3002Redis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u5feb\u901f\u8b80\u53d6\u548c\u5beb\u5165\u7684\u60c5\u6cc1\u4e0b\u3002\u7136\u800c\uff0c\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\uff0c\u67d0\u4e9b\u9375\uff08Key\uff09\u53ef\u80fd\u6703\u8b8a\u5f97\u7570\u5e38\u71b1\u9580\uff0c\u9019\u4e9b\u88ab\u7a31\u70ba\u300c\u71b1 Key\u300d\u3002\u71b1 Key \u7684\u5b58\u5728\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u74f6\u9838\uff0c\u5f71\u97ff\u6574\u9ad4\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u3002\u56e0\u6b64\uff0c\u57fa\u65bc Redis \u7684\u71b1 Key \u81ea\u52d5\u8b58\u5225\u6280\u8853\u8b8a\u5f97\u5c24\u70ba\u91cd\u8981\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%86%b1-key%ef%bc%9f-RtXpLRzwGe\">\u4ec0\u9ebc\u662f\u71b1 Key\uff1f<\/h2>\n<p>\u71b1 Key \u662f\u6307\u5728\u7279\u5b9a\u6642\u9593\u5167\u88ab\u983b\u7e41\u8a2a\u554f\u7684\u9375\u3002\u9019\u4e9b\u9375\u7684\u8a2a\u554f\u91cf\u9060\u9ad8\u65bc\u5176\u4ed6\u9375\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4 Redis \u7684\u6027\u80fd\u4e0b\u964d\u3002\u4f8b\u5982\uff0c\u5728\u4e00\u500b\u96fb\u5b50\u5546\u52d9\u5e73\u53f0\u4e2d\uff0c\u67d0\u500b\u71b1\u9580\u5546\u54c1\u7684\u8a73\u7d30\u4fe1\u606f\u53ef\u80fd\u6703\u6210\u70ba\u71b1 Key\uff0c\u56e0\u70ba\u5927\u91cf\u7528\u6236\u540c\u6642\u67e5\u8a62\u8a72\u5546\u54c1\u7684\u8cc7\u8a0a\u3002<\/p>\n<h2 id=\"%e7%86%b1-key-%e7%9a%84%e5%bd%b1%e9%9f%bf-RtXpLRzwGe\">\u71b1 Key \u7684\u5f71\u97ff<\/h2>\n<p>\u71b1 Key \u53ef\u80fd\u6703\u5c0d\u7cfb\u7d71\u9020\u6210\u4ee5\u4e0b\u5e7e\u500b\u65b9\u9762\u7684\u5f71\u97ff\uff1a<\/p>\n<ul>\n<li><strong>\u6027\u80fd\u74f6\u9838\uff1a<\/strong>\u7576\u591a\u500b\u8acb\u6c42\u540c\u6642\u8a2a\u554f\u540c\u4e00\u71b1 Key \u6642\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4 Redis \u7684 CPU \u548c\u5167\u5b58\u8cc7\u6e90\u904e\u5ea6\u6d88\u8017\uff0c\u5f9e\u800c\u5f71\u97ff\u6574\u9ad4\u6027\u80fd\u3002<\/li>\n<li><strong>\u5ef6\u9072\u589e\u52a0\uff1a<\/strong>\u71b1 Key \u7684\u9ad8\u4e26\u767c\u8a2a\u554f\u53ef\u80fd\u6703\u5c0e\u81f4\u8acb\u6c42\u6392\u968a\uff0c\u589e\u52a0\u97ff\u61c9\u6642\u9593\uff0c\u5f71\u97ff\u7528\u6236\u9ad4\u9a57\u3002<\/li>\n<li><strong>\u7cfb\u7d71\u4e0d\u7a69\u5b9a\uff1a<\/strong>\u5728\u6975\u7aef\u60c5\u6cc1\u4e0b\uff0c\u71b1 Key \u53ef\u80fd\u6703\u5c0e\u81f4 Redis \u5be6\u4f8b\u5d29\u6f70\uff0c\u5f71\u97ff\u6574\u500b\u61c9\u7528\u7684\u53ef\u7528\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%86%b1-key-%e8%87%aa%e5%8b%95%e8%ad%98%e5%88%a5%e6%8a%80%e8%a1%93-RtXpLRzwGe\">\u71b1 Key \u81ea\u52d5\u8b58\u5225\u6280\u8853<\/h2>\n<p>\u70ba\u4e86\u6709\u6548\u7ba1\u7406\u71b1 Key\uff0c\u958b\u767c\u8005\u9700\u8981\u5be6\u65bd\u71b1 Key \u81ea\u52d5\u8b58\u5225\u6280\u8853\u3002\u9019\u4e9b\u6280\u8853\u901a\u5e38\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e6%95%b8%e6%93%9a%e7%9b%a3%e6%8e%a7-RtXpLRzwGe\">1. \u6578\u64da\u76e3\u63a7<\/h3>\n<p>\u9996\u5148\uff0c\u9700\u8981\u5c0d Redis \u7684\u8a2a\u554f\u6a21\u5f0f\u9032\u884c\u76e3\u63a7\u3002\u53ef\u4ee5\u4f7f\u7528 Redis \u63d0\u4f9b\u7684\u7d71\u8a08\u4fe1\u606f\uff0c\u5982 <code>INFO<\/code> \u547d\u4ee4\uff0c\u4f86\u7372\u53d6\u9375\u7684\u8a2a\u554f\u983b\u7387\u548c\u5176\u4ed6\u6027\u80fd\u6307\u6a19\u3002<\/p>\n<h3 id=\"2-%e8%a8%ad%e5%ae%9a%e9%96%be%e5%80%bc-RtXpLRzwGe\">2. \u8a2d\u5b9a\u95be\u503c<\/h3>\n<p>\u6839\u64da\u696d\u52d9\u9700\u6c42\uff0c\u8a2d\u5b9a\u4e00\u500b\u95be\u503c\u4f86\u5224\u65b7\u4f55\u6642\u5c07\u67d0\u500b\u9375\u8996\u70ba\u71b1 Key\u3002\u4f8b\u5982\uff0c\u5982\u679c\u67d0\u500b\u9375\u5728\u4e00\u6bb5\u6642\u9593\u5167\u7684\u8a2a\u554f\u6b21\u6578\u8d85\u904e\u9810\u8a2d\u7684\u95be\u503c\uff0c\u5247\u53ef\u4ee5\u5c07\u5176\u6a19\u8a18\u70ba\u71b1 Key\u3002<\/p>\n<h3 id=\"3-%e8%87%aa%e5%8b%95%e8%ad%98%e5%88%a5-RtXpLRzwGe\">3. \u81ea\u52d5\u8b58\u5225<\/h3>\n<p>\u901a\u904e\u5b9a\u671f\u6aa2\u67e5 Redis \u7684\u8a2a\u554f\u8a18\u9304\uff0c\u7cfb\u7d71\u53ef\u4ee5\u81ea\u52d5\u8b58\u5225\u71b1 Key\u3002\u9019\u53ef\u4ee5\u901a\u904e\u7de8\u5beb\u8173\u672c\u4f86\u5be6\u73fe\uff0c\u5b9a\u671f\u57f7\u884c\u4e26\u66f4\u65b0\u71b1 Key \u5217\u8868\u3002<\/p>\n<h3 id=\"4-%e7%86%b1-key-%e7%ae%a1%e7%90%86-RtXpLRzwGe\">4. \u71b1 Key \u7ba1\u7406<\/h3>\n<p>\u4e00\u65e6\u8b58\u5225\u51fa\u71b1 Key\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u63a1\u53d6\u76f8\u61c9\u7684\u63aa\u65bd\u4f86\u7ba1\u7406\u9019\u4e9b\u9375\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528\u7de9\u5b58\u7b56\u7565\u4f86\u6e1b\u5c11\u5c0d\u71b1 Key \u7684\u76f4\u63a5\u8a2a\u554f\uff0c\u6216\u8005\u5c07\u71b1 Key \u7684\u6578\u64da\u5206\u6563\u5230\u591a\u500b Redis \u5be6\u4f8b\u4e2d\u3002<\/p>\n<h2 id=\"%e7%a4%ba%e4%be%8b%e4%bb%a3%e7%a2%bc-RtXpLRzwGe\">\u793a\u4f8b\u4ee3\u78bc<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684 Python \u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528 Redis-Py \u5eab\u4f86\u76e3\u63a7\u9375\u7684\u8a2a\u554f\u983b\u7387\uff1a<\/p>\n<pre><code>import redis\nfrom collections import defaultdict\nimport time\n\n# \u9023\u63a5\u5230 Redis\nr = redis.Redis(host='localhost', port=6379, db=0)\n\n# \u8a2a\u554f\u8a08\u6578\u5668\naccess_count = defaultdict(int)\n\n# \u6a21\u64ec\u8a2a\u554f\ndef access_key(key):\n    access_count[key] += 1\n    r.get(key)  # \u5047\u8a2d\u9019\u662f\u5c0d\u9375\u7684\u8a2a\u554f\n\n# \u6a21\u64ec\u591a\u6b21\u8a2a\u554f\nfor _ in range(100):\n    access_key('hot_key')\n    time.sleep(0.01)\n\n# \u8f38\u51fa\u8a2a\u554f\u8a08\u6578\nprint(dict(access_count))\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-RtXpLRzwGe\">\u7d50\u8ad6<\/h2>\n<p>\u57fa\u65bc Redis \u7684\u71b1 Key \u81ea\u52d5\u8b58\u5225\u6280\u8853\u5c0d\u65bc\u78ba\u4fdd\u7cfb\u7d71\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u6709\u6548\u7684\u76e3\u63a7\u548c\u7ba1\u7406\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6e1b\u5c11\u71b1 Key \u5c0d\u7cfb\u7d71\u7684\u5f71\u97ff\uff0c\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\uff0c\u9019\u9805\u6280\u8853\u5c07\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\uff0c\u5e6b\u52a9\u4f01\u696d\u5728\u7af6\u722d\u4e2d\u4fdd\u6301\u512a\u52e2\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">VPS<\/a> \u548c\u5176\u4ed6\u670d\u52d9\u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u57fa\u65bc Redis \u7684\u71b1 Key \u81ea\u52d5\u8b58\u5225\u6280\u8853\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\uff0c\u512a\u5316\u7cfb\u7d71\u6027\u80fd\uff0c\u5be6\u73fe\u667a\u80fd\u5316\u6578\u64da\u7ba1\u7406\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-161427","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161427","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=161427"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161427\/revisions"}],"predecessor-version":[{"id":161428,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161427\/revisions\/161428"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=161427"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=161427"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=161427"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}