{"id":128833,"date":"2024-10-26T17:05:20","date_gmt":"2024-10-26T09:05:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/128833\/"},"modified":"2024-10-26T17:05:21","modified_gmt":"2024-10-26T09:05:21","slug":"redis%e5%af%a6%e7%8f%be%e8%bc%95%e9%ac%86%e6%b5%81%e9%87%8f%e5%88%86%e7%99%bc%ef%bc%88redis%e6%b5%81%e9%87%8f%e5%88%86%e7%99%bc%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/128833\/","title":{"rendered":"Redis\u5be6\u73fe\u8f15\u9b06\u6d41\u91cf\u5206\u767c\uff08redis\u6d41\u91cf\u5206\u767c\uff09"},"content":{"rendered":"<h1 id=\"redis%e5%af%a6%e7%8f%be%e8%bc%95%e9%ac%86%e6%b5%81%e9%87%8f%e5%88%86%e7%99%bc%ef%bc%88redis%e6%b5%81%e9%87%8f%e5%88%86%e7%99%bc%ef%bc%89-ZEsyrNlqoV\">Redis\u5be6\u73fe\u8f15\u9b06\u6d41\u91cf\u5206\u767c\uff08redis\u6d41\u91cf\u5206\u767c\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u74b0\u5883\u4e2d\uff0c\u6d41\u91cf\u5206\u767c\u662f\u78ba\u4fdd\u61c9\u7528\u7a0b\u5e8f\u9ad8\u6548\u904b\u884c\u7684\u95dc\u9375\u56e0\u7d20\u4e4b\u4e00\u3002\u96a8\u8457\u7528\u6236\u9700\u6c42\u7684\u589e\u52a0\uff0c\u5982\u4f55\u6709\u6548\u5730\u7ba1\u7406\u548c\u5206\u914d\u6d41\u91cf\u6210\u70ba\u4e86\u958b\u767c\u8005\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u9762\u81e8\u7684\u91cd\u8981\u6311\u6230\u3002Redis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u529f\u80fd\u4f86\u5be6\u73fe\u6d41\u91cf\u5206\u767c\uff0c\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eRedis\u5728\u6d41\u91cf\u5206\u767c\u4e2d\u7684\u61c9\u7528\u53ca\u5176\u512a\u52e2\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afredis%ef%bc%9f-ZEsyrNlqoV\">\u4ec0\u9ebc\u662fRedis\uff1f<\/h2>\n<p>Redis\uff08REmote DIctionary Server\uff09\u662f\u4e00\u7a2e\u958b\u6e90\u7684\u9ad8\u6027\u80fd\u9375\u503c\u6578\u64da\u5eab\uff0c\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\u3002\u7531\u65bc\u5176\u9ad8\u6548\u7684\u6027\u80fd\u548c\u9748\u6d3b\u7684\u6578\u64da\u7d50\u69cb\uff0cRedis\u88ab\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6d41\u91cf\u5206\u767c\u7b49\u5834\u666f\u3002<\/p>\n<h2 id=\"%e6%b5%81%e9%87%8f%e5%88%86%e7%99%bc%e7%9a%84%e5%bf%85%e8%a6%81%e6%80%a7-ZEsyrNlqoV\">\u6d41\u91cf\u5206\u767c\u7684\u5fc5\u8981\u6027<\/h2>\n<p>\u6d41\u91cf\u5206\u767c\u7684\u4e3b\u8981\u76ee\u7684\u662f\u5c07\u7528\u6236\u8acb\u6c42\u5747\u52fb\u5730\u5206\u914d\u5230\u591a\u500b\u670d\u52d9\u5668\u4e0a\uff0c\u4ee5\u907f\u514d\u55ae\u4e00\u670d\u52d9\u5668\u7684\u904e\u8f09\u3002\u9019\u4e0d\u50c5\u63d0\u9ad8\u4e86\u7cfb\u7d71\u7684\u53ef\u7528\u6027\uff0c\u9084\u80fd\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u3002\u6d41\u91cf\u5206\u767c\u7684\u7b56\u7565\u53ef\u4ee5\u6839\u64da\u4e0d\u540c\u7684\u9700\u6c42\u9032\u884c\u8abf\u6574\uff0c\u4f8b\u5982\u57fa\u65bc\u8acb\u6c42\u7684\u4f86\u6e90\u3001\u8acb\u6c42\u7684\u985e\u578b\u6216\u670d\u52d9\u5668\u7684\u8ca0\u8f09\u60c5\u6cc1\u7b49\u3002<\/p>\n<h2 id=\"redis%e5%9c%a8%e6%b5%81%e9%87%8f%e5%88%86%e7%99%bc%e4%b8%ad%e7%9a%84%e6%87%89%e7%94%a8-ZEsyrNlqoV\">Redis\u5728\u6d41\u91cf\u5206\u767c\u4e2d\u7684\u61c9\u7528<\/h2>\n<p>Redis\u53ef\u4ee5\u901a\u904e\u591a\u7a2e\u65b9\u5f0f\u5be6\u73fe\u6d41\u91cf\u5206\u767c\uff0c\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u5e38\u898b\u7684\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e5%9f%ba%e6%96%bc%e5%93%88%e5%b8%8c%e7%9a%84%e6%b5%81%e9%87%8f%e5%88%86%e7%99%bc-ZEsyrNlqoV\">1. \u57fa\u65bc\u54c8\u5e0c\u7684\u6d41\u91cf\u5206\u767c<\/h3>\n<p>\u4f7f\u7528Redis\u7684\u54c8\u5e0c\u6578\u64da\u7d50\u69cb\uff0c\u53ef\u4ee5\u5c07\u7528\u6236\u8acb\u6c42\u7684\u552f\u4e00\u6a19\u8b58\uff08\u5982\u7528\u6236ID\uff09\u6620\u5c04\u5230\u4e0d\u540c\u7684\u670d\u52d9\u5668\u3002\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u540c\u4e00\u7528\u6236\u7684\u8acb\u6c42\u59cb\u7d42\u88ab\u5206\u914d\u5230\u540c\u4e00\u670d\u52d9\u5668\u4e0a\uff0c\u5f9e\u800c\u63d0\u9ad8\u4e86\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002<\/p>\n<pre><code>\n# \u5047\u8a2d\u6709\u4e09\u53f0\u670d\u52d9\u5668\nservers = [\"server1\", \"server2\", \"server3\"]\n\n# \u4f7f\u7528\u54c8\u5e0c\u7b97\u6cd5\u5206\u914d\u8acb\u6c42\ndef get_server(user_id):\n    return servers[hash(user_id) % len(servers)]\n<\/code><\/pre>\n<h3 id=\"2-%e5%9f%ba%e6%96%bc%e8%b2%a0%e8%bc%89%e7%9a%84%e6%b5%81%e9%87%8f%e5%88%86%e7%99%bc-ZEsyrNlqoV\">2. \u57fa\u65bc\u8ca0\u8f09\u7684\u6d41\u91cf\u5206\u767c<\/h3>\n<p>Redis\u9084\u53ef\u4ee5\u7528\u4f86\u5be6\u73fe\u57fa\u65bc\u670d\u52d9\u5668\u8ca0\u8f09\u7684\u6d41\u91cf\u5206\u767c\u3002\u901a\u904e\u5b9a\u671f\u66f4\u65b0\u6bcf\u53f0\u670d\u52d9\u5668\u7684\u8ca0\u8f09\u4fe1\u606f\uff0cRedis\u53ef\u4ee5\u5e6b\u52a9\u7cfb\u7d71\u9078\u64c7\u7576\u524d\u8ca0\u8f09\u6700\u4f4e\u7684\u670d\u52d9\u5668\u4f86\u8655\u7406\u8acb\u6c42\u3002<\/p>\n<pre><code>\n# \u5047\u8a2d\u6709\u4e00\u500b\u5b58\u5132\u670d\u52d9\u5668\u8ca0\u8f09\u7684\u54c8\u5e0c\nserver_loads = {\n    \"server1\": 10,\n    \"server2\": 5,\n    \"server3\": 8\n}\n\n# \u7372\u53d6\u8ca0\u8f09\u6700\u4f4e\u7684\u670d\u52d9\u5668\ndef get_least_loaded_server():\n    return min(server_loads, key=server_loads.get)\n<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8pub-sub%e6%a8%a1%e5%bc%8f%e9%80%b2%e8%a1%8c%e6%b5%81%e9%87%8f%e5%88%86%e7%99%bc-ZEsyrNlqoV\">3. \u4f7f\u7528Pub\/Sub\u6a21\u5f0f\u9032\u884c\u6d41\u91cf\u5206\u767c<\/h3>\n<p>Redis\u7684Pub\/Sub\u529f\u80fd\u53ef\u4ee5\u7528\u4f86\u5be6\u73fe\u5be6\u6642\u7684\u6d41\u91cf\u5206\u767c\u3002\u7576\u4e00\u500b\u670d\u52d9\u5668\u63a5\u6536\u5230\u8acb\u6c42\u6642\uff0c\u53ef\u4ee5\u5c07\u8acb\u6c42\u4fe1\u606f\u767c\u4f48\u5230\u4e00\u500b\u983b\u9053\uff0c\u5176\u4ed6\u670d\u52d9\u5668\u5247\u8a02\u95b1\u8a72\u983b\u9053\uff0c\u6839\u64da\u9700\u8981\u8655\u7406\u8acb\u6c42\u3002<\/p>\n<pre><code>\n# \u767c\u4f48\u8acb\u6c42\nredis.publish(\"request_channel\", request_data)\n\n# \u8a02\u95b1\u8acb\u6c42\ndef handle_request(message):\n    # \u8655\u7406\u8acb\u6c42\n    pass\n\nredis.subscribe(\"request_channel\", handle_request)\n<\/code><\/pre>\n<h2 id=\"redis%e6%b5%81%e9%87%8f%e5%88%86%e7%99%bc%e7%9a%84%e5%84%aa%e5%8b%a2-ZEsyrNlqoV\">Redis\u6d41\u91cf\u5206\u767c\u7684\u512a\u52e2<\/h2>\n<ul>\n<li><strong>\u9ad8\u6027\u80fd\uff1a<\/strong>Redis\u7684\u5167\u5b58\u5b58\u5132\u7279\u6027\u4f7f\u5176\u5728\u8655\u7406\u5927\u91cf\u8acb\u6c42\u6642\u8868\u73fe\u51fa\u8272\u3002<\/li>\n<li><strong>\u9748\u6d3b\u6027\uff1a<\/strong>\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\u548c\u64cd\u4f5c\uff0c\u80fd\u5920\u6839\u64da\u4e0d\u540c\u9700\u6c42\u9032\u884c\u8abf\u6574\u3002<\/li>\n<li><strong>\u7c21\u55ae\u6613\u7528\uff1a<\/strong>Redis\u7684API\u7c21\u55ae\u660e\u77ad\uff0c\u6613\u65bc\u96c6\u6210\u5230\u73fe\u6709\u7cfb\u7d71\u4e2d\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-ZEsyrNlqoV\">\u7e3d\u7d50<\/h2>\n<p>Redis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u6578\u64da\u5eab\uff0c\u70ba\u6d41\u91cf\u5206\u767c\u63d0\u4f9b\u4e86\u591a\u7a2e\u9748\u6d3b\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u7121\u8ad6\u662f\u57fa\u65bc\u54c8\u5e0c\u7684\u5206\u767c\u3001\u8ca0\u8f09\u5747\u8861\u9084\u662fPub\/Sub\u6a21\u5f0f\uff0cRedis\u90fd\u80fd\u6709\u6548\u5730\u5e6b\u52a9\u958b\u767c\u8005\u7ba1\u7406\u6d41\u91cf\uff0c\u63d0\u9ad8\u7cfb\u7d71\u7684\u53ef\u7528\u6027\u548c\u6027\u80fd\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6d41\u91cf\u7ba1\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684\u6280\u8853\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f\u6d41\u91cf\u5206\u767c\u9084\u662f\u5176\u4ed6\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u5c07\u6709\u52a9\u65bc\u63d0\u5347\u60a8\u7684\u696d\u52d9\u6548\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u5229\u7528Redis\u5be6\u73fe\u9ad8\u6548\u7684\u6d41\u91cf\u5206\u767c\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u8207\u7a69\u5b9a\u6027\uff0c\u7c21\u5316\u6d41\u91cf\u7ba1\u7406\u904e\u7a0b\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-128833","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128833","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=128833"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128833\/revisions"}],"predecessor-version":[{"id":128834,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/128833\/revisions\/128834"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=128833"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=128833"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=128833"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}