{"id":153553,"date":"2024-11-02T08:24:24","date_gmt":"2024-11-02T00:24:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/153553\/"},"modified":"2024-11-02T08:24:25","modified_gmt":"2024-11-02T00:24:25","slug":"%e7%ad%94%e5%ae%8c%e9%80%99%e4%ba%9b-redis-%e6%9c%8d%e5%8b%99%e7%86%94%e6%96%b7%e9%9d%a2%e8%a9%a6%e9%a1%8c%ef%bc%8c%e4%bd%a0%e5%b0%b1%e5%8f%af%e4%bb%a5%e4%ba%86%e8%a7%a3%e9%97%9c%e6%96%bc%e5%ae%83","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/153553\/","title":{"rendered":"\u7b54\u5b8c\u9019\u4e9b Redis \u670d\u52d9\u7194\u65b7\u9762\u8a66\u984c\uff0c\u4f60\u5c31\u53ef\u4ee5\u4e86\u89e3\u95dc\u65bc\u5b83\u7684\u4e00\u5207\uff08Redis \u670d\u52d9\u7194\u65b7\u9762\u8a66\u984c\uff09"},"content":{"rendered":"<h1 id=\"%e7%ad%94%e5%ae%8c%e9%80%99%e4%ba%9b-redis-%e6%9c%8d%e5%8b%99%e7%86%94%e6%96%b7%e9%9d%a2%e8%a9%a6%e9%a1%8c%ef%bc%8c%e4%bd%a0%e5%b0%b1%e5%8f%af%e4%bb%a5%e4%ba%86%e8%a7%a3%e9%97%9c%e6%96%bc%e5%ae%83-VmXKQDHwcD\">\u7b54\u5b8c\u9019\u4e9b Redis \u670d\u52d9\u7194\u65b7\u9762\u8a66\u984c\uff0c\u4f60\u5c31\u53ef\u4ee5\u4e86\u89e3\u95dc\u65bc\u5b83\u7684\u4e00\u5207<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6280\u8853\u74b0\u5883\u4e2d\uff0cRedis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5df2\u7d93\u6210\u70ba\u8a31\u591a\u61c9\u7528\u7a0b\u5e8f\u7684\u6838\u5fc3\u7d44\u4ef6\u3002\u7121\u8ad6\u662f\u7528\u65bc\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u9084\u662f\u6578\u64da\u6301\u4e45\u5316\uff0cRedis \u90fd\u5c55\u73fe\u4e86\u5176\u5353\u8d8a\u7684\u6027\u80fd\u548c\u9748\u6d3b\u6027\u3002\u5728\u9762\u8a66\u4e2d\uff0c\u4e86\u89e3 Redis \u7684\u670d\u52d9\u7194\u65b7\u6a5f\u5236\u662f\u975e\u5e38\u91cd\u8981\u7684\uff0c\u56e0\u70ba\u9019\u4e0d\u50c5\u80fd\u5e6b\u52a9\u4f60\u7406\u89e3\u5176\u5de5\u4f5c\u539f\u7406\uff0c\u9084\u80fd\u8b93\u4f60\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u66f4\u597d\u5730\u5229\u7528\u9019\u9805\u6280\u8853\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u4e00\u4e9b\u95dc\u65bc Redis \u670d\u52d9\u7194\u65b7\u7684\u9762\u8a66\u984c\uff0c\u5e6b\u52a9\u4f60\u5168\u9762\u4e86\u89e3\u9019\u4e00\u4e3b\u984c\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-redis-%e6%9c%8d%e5%8b%99%e7%86%94%e6%96%b7%ef%bc%9f-VmXKQDHwcD\">\u4ec0\u9ebc\u662f Redis \u670d\u52d9\u7194\u65b7\uff1f<\/h2>\n<p>\u670d\u52d9\u7194\u65b7\u662f\u4e00\u7a2e\u8a2d\u8a08\u6a21\u5f0f\uff0c\u65e8\u5728\u9632\u6b62\u7cfb\u7d71\u5728\u9762\u5c0d\u6545\u969c\u6642\u9032\u4e00\u6b65\u60e1\u5316\u3002\u7576\u4e00\u500b\u670d\u52d9\u7684\u8acb\u6c42\u5931\u6557\u7387\u8d85\u904e\u9810\u8a2d\u7684\u95be\u503c\u6642\uff0c\u7194\u65b7\u5668\u6703\u66ab\u6642\u963b\u6b62\u5c0d\u8a72\u670d\u52d9\u7684\u8acb\u6c42\uff0c\u5f9e\u800c\u4fdd\u8b77\u7cfb\u7d71\u7684\u5176\u4ed6\u90e8\u5206\u4e0d\u53d7\u5f71\u97ff\u3002\u5728 Redis \u4e2d\uff0c\u7194\u65b7\u6a5f\u5236\u53ef\u4ee5\u7528\u4f86\u4fdd\u8b77\u5f8c\u7aef\u6578\u64da\u5eab\u6216\u5176\u4ed6\u4f9d\u8cf4\u670d\u52d9\uff0c\u907f\u514d\u56e0\u70ba\u904e\u591a\u7684\u8acb\u6c42\u5c0e\u81f4\u7cfb\u7d71\u5d29\u6f70\u3002<\/p>\n<h2 id=\"redis-%e4%b8%ad%e7%9a%84%e7%86%94%e6%96%b7%e5%99%a8%e5%a6%82%e4%bd%95%e5%b7%a5%e4%bd%9c%ef%bc%9f-VmXKQDHwcD\">Redis \u4e2d\u7684\u7194\u65b7\u5668\u5982\u4f55\u5de5\u4f5c\uff1f<\/h2>\n<p>\u5728 Redis \u4e2d\uff0c\u7194\u65b7\u5668\u901a\u5e38\u7531\u4ee5\u4e0b\u4e09\u500b\u72c0\u614b\u7d44\u6210\uff1a<\/p>\n<ul>\n<li><strong>\u95dc\u9589\u72c0\u614b\uff1a<\/strong>\u5728\u6b64\u72c0\u614b\u4e0b\uff0c\u6240\u6709\u8acb\u6c42\u90fd\u6703\u88ab\u6b63\u5e38\u8655\u7406\u3002\u5982\u679c\u8acb\u6c42\u5931\u6557\u7387\u8d85\u904e\u9810\u8a2d\u95be\u503c\uff0c\u7194\u65b7\u5668\u5c07\u8f49\u63db\u5230\u958b\u555f\u72c0\u614b\u3002<\/li>\n<li><strong>\u958b\u555f\u72c0\u614b\uff1a<\/strong>\u5728\u6b64\u72c0\u614b\u4e0b\uff0c\u6240\u6709\u8acb\u6c42\u90fd\u6703\u88ab\u62d2\u7d55\uff0c\u4e26\u8fd4\u56de\u932f\u8aa4\u4fe1\u606f\u3002\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u5c0d\u5f8c\u7aef\u670d\u52d9\u7684\u58d3\u529b\u3002<\/li>\n<li><strong>\u534a\u958b\u72c0\u614b\uff1a<\/strong>\u5728\u6b64\u72c0\u614b\u4e0b\uff0c\u7194\u65b7\u5668\u6703\u5141\u8a31\u5c11\u91cf\u8acb\u6c42\u901a\u904e\uff0c\u4ee5\u6aa2\u67e5\u5f8c\u7aef\u670d\u52d9\u662f\u5426\u6062\u5fa9\u6b63\u5e38\u3002\u5982\u679c\u8acb\u6c42\u6210\u529f\uff0c\u7194\u65b7\u5668\u5c07\u8fd4\u56de\u5230\u95dc\u9589\u72c0\u614b\uff1b\u5982\u679c\u5931\u6557\uff0c\u5247\u4fdd\u6301\u5728\u958b\u555f\u72c0\u614b\u3002<\/li>\n<\/ul>\n<h2 id=\"redis-%e7%86%94%e6%96%b7%e7%9a%84%e5%af%a6%e7%8f%be%e6%96%b9%e5%bc%8f-VmXKQDHwcD\">Redis \u7194\u65b7\u7684\u5be6\u73fe\u65b9\u5f0f<\/h2>\n<p>\u5728 Redis \u4e2d\uff0c\u53ef\u4ee5\u901a\u904e\u4f7f\u7528 Lua \u8173\u672c\u6216\u4e2d\u9593\u4ef6\u4f86\u5be6\u73fe\u7194\u65b7\u6a5f\u5236\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528 Lua \u8173\u672c\u4f86\u5be6\u73fe\u7194\u65b7\uff1a<\/p>\n<pre><code>\nlocal key = KEYS[1]\nlocal threshold = tonumber(ARGV[1])\nlocal currentFailures = tonumber(redis.call('get', key) or 0)\n\nif currentFailures &gt; threshold then\n    return \"\u7194\u65b7\u4e2d\"\nelse\n    -- \u8655\u7406\u8acb\u6c42\n    return \"\u8acb\u6c42\u6210\u529f\"\nend\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u4e00\u500b\u9375\u4f86\u8ddf\u8e2a\u7576\u524d\u7684\u5931\u6557\u6b21\u6578\uff0c\u4e26\u8207\u9810\u8a2d\u7684\u95be\u503c\u9032\u884c\u6bd4\u8f03\u3002\u5982\u679c\u5931\u6557\u6b21\u6578\u8d85\u904e\u95be\u503c\uff0c\u5247\u8fd4\u56de\u7194\u65b7\u4e2d\uff0c\u5426\u5247\u8655\u7406\u8acb\u6c42\u3002<\/p>\n<h2 id=\"%e9%9d%a2%e8%a9%a6%e4%b8%ad%e5%b8%b8%e8%a6%8b%e7%9a%84-redis-%e6%9c%8d%e5%8b%99%e7%86%94%e6%96%b7%e5%95%8f%e9%a1%8c-VmXKQDHwcD\">\u9762\u8a66\u4e2d\u5e38\u898b\u7684 Redis \u670d\u52d9\u7194\u65b7\u554f\u984c<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5728\u9762\u8a66\u4e2d\u53ef\u80fd\u6703\u9047\u5230\u7684\u95dc\u65bc Redis \u670d\u52d9\u7194\u65b7\u7684\u554f\u984c\uff1a<\/p>\n<ul>\n<li><strong>\u4ec0\u9ebc\u60c5\u6cc1\u4e0b\u9700\u8981\u4f7f\u7528\u7194\u65b7\u6a5f\u5236\uff1f<\/strong> \u5728\u9ad8\u6d41\u91cf\u7684\u61c9\u7528\u4e2d\uff0c\u7576\u5f8c\u7aef\u670d\u52d9\u53ef\u80fd\u6703\u56e0\u70ba\u904e\u8f09\u800c\u7121\u6cd5\u8655\u7406\u8acb\u6c42\u6642\uff0c\u7194\u65b7\u6a5f\u5236\u53ef\u4ee5\u9632\u6b62\u7cfb\u7d71\u5d29\u6f70\u3002<\/li>\n<li><strong>\u5982\u4f55\u8a2d\u7f6e\u7194\u65b7\u7684\u95be\u503c\uff1f<\/strong> \u95be\u503c\u7684\u8a2d\u7f6e\u61c9\u6839\u64da\u7cfb\u7d71\u7684\u6027\u80fd\u6307\u6a19\u548c\u696d\u52d9\u9700\u6c42\u9032\u884c\u8abf\u6574\uff0c\u901a\u5e38\u9700\u8981\u9032\u884c\u58d3\u529b\u6e2c\u8a66\u4f86\u78ba\u5b9a\u6700\u4f73\u503c\u3002<\/li>\n<li><strong>\u7194\u65b7\u5f8c\u5982\u4f55\u6062\u5fa9\u670d\u52d9\uff1f<\/strong> \u901a\u5e38\u9700\u8981\u8a2d\u7f6e\u4e00\u500b\u6642\u9593\u7a97\u53e3\uff0c\u8b93\u7194\u65b7\u5668\u9032\u5165\u534a\u958b\u72c0\u614b\uff0c\u7136\u5f8c\u6839\u64da\u8acb\u6c42\u7684\u6210\u529f\u7387\u4f86\u6c7a\u5b9a\u662f\u5426\u6062\u5fa9\u670d\u52d9\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-VmXKQDHwcD\">\u7e3d\u7d50<\/h2>\n<p>\u4e86\u89e3 Redis \u7684\u670d\u52d9\u7194\u65b7\u6a5f\u5236\u5c0d\u65bc\u958b\u767c\u548c\u904b\u7dad\u4eba\u54e1\u4f86\u8aaa\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u638c\u63e1\u7194\u65b7\u7684\u5de5\u4f5c\u539f\u7406\u53ca\u5176\u5be6\u73fe\u65b9\u5f0f\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u63d0\u9ad8\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002\u5728\u9762\u8a66\u4e2d\uff0c\u80fd\u5920\u6e05\u6670\u5730\u89e3\u91cb\u9019\u4e9b\u6982\u5ff5\u5c07\u6709\u52a9\u65bc\u4f60\u5728\u6280\u8853\u9762\u8a66\u4e2d\u812b\u7a4e\u800c\u51fa\u3002\u5982\u679c\u4f60\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u638c\u63e1Redis\u670d\u52d9\u7194\u65b7\u9762\u8a66\u984c\uff0c\u6df1\u5165\u4e86\u89e3\u5176\u539f\u7406\u8207\u61c9\u7528\uff0c\u52a9\u4f60\u5728\u9762\u8a66\u4e2d\u812b\u7a4e\u800c\u51fa\uff0c\u63d0\u5347\u6280\u8853\u7af6\u722d\u529b\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-153553","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/153553","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=153553"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/153553\/revisions"}],"predecessor-version":[{"id":153554,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/153553\/revisions\/153554"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=153553"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=153553"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=153553"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}