{"id":129291,"date":"2024-10-26T20:30:21","date_gmt":"2024-10-26T12:30:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/129291\/"},"modified":"2024-10-26T20:30:23","modified_gmt":"2024-10-26T12:30:23","slug":"redis%e6%ad%bb%e9%8e%96%e8%99%95%e7%bd%ae%e5%af%a6%e6%96%bd%e6%9c%89%e6%95%88%e7%9a%84%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88%ef%bc%88redis%e6%ad%bb%e9%8e%96%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/129291\/","title":{"rendered":"Redis\u6b7b\u9396\u8655\u7f6e\u5be6\u65bd\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\uff08redis\u6b7b\u9396\u89e3\u6c7a\u65b9\u6848\uff09"},"content":{"rendered":"<h1 id=\"redis%e6%ad%bb%e9%8e%96%e8%99%95%e7%bd%ae%e5%af%a6%e6%96%bd%e6%9c%89%e6%95%88%e7%9a%84%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-fTgEzKcror\">Redis\u6b7b\u9396\u8655\u7f6e\u5be6\u65bd\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u61c9\u7528\u7a0b\u5e8f\u4e2d\u3002\u7136\u800c\uff0c\u96a8\u8457\u7cfb\u7d71\u7684\u8907\u96dc\u6027\u589e\u52a0\uff0cRedis\u6b7b\u9396\u554f\u984c\u4e5f\u9010\u6f38\u6d6e\u73fe\u3002\u672c\u6587\u5c07\u63a2\u8a0eRedis\u6b7b\u9396\u7684\u6210\u56e0\u53ca\u5176\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afredis%e6%ad%bb%e9%8e%96%ef%bc%9f-fTgEzKcror\">\u4ec0\u9ebc\u662fRedis\u6b7b\u9396\uff1f<\/h2>\n<p>\u6b7b\u9396\u662f\u6307\u5169\u500b\u6216\u591a\u500b\u9032\u7a0b\u5728\u57f7\u884c\u904e\u7a0b\u4e2d\uff0c\u56e0\u70ba\u76f8\u4e92\u7b49\u5f85\u5c0d\u65b9\u91cb\u653e\u8cc7\u6e90\u800c\u7121\u6cd5\u7e7c\u7e8c\u57f7\u884c\u7684\u60c5\u6cc1\u3002\u5728Redis\u4e2d\uff0c\u6b7b\u9396\u901a\u5e38\u767c\u751f\u5728\u591a\u500b\u5ba2\u6236\u7aef\u540c\u6642\u8acb\u6c42\u9396\u5b9a\u76f8\u540c\u7684\u8cc7\u6e90\u6642\uff0c\u5c0e\u81f4\u7cfb\u7d71\u7121\u6cd5\u9032\u884c\u6b63\u5e38\u7684\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"%e6%ad%bb%e9%8e%96%e7%9a%84%e6%88%90%e5%9b%a0-fTgEzKcror\">\u6b7b\u9396\u7684\u6210\u56e0<\/h2>\n<ul>\n<li><strong>\u8cc7\u6e90\u7af6\u722d\uff1a<\/strong>\u7576\u591a\u500b\u5ba2\u6236\u7aef\u540c\u6642\u8acb\u6c42\u76f8\u540c\u7684\u8cc7\u6e90\u6642\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6b7b\u9396\u3002<\/li>\n<li><strong>\u4e0d\u7576\u7684\u9396\u5b9a\u7b56\u7565\uff1a<\/strong>\u4f7f\u7528\u4e0d\u7576\u7684\u9396\u5b9a\u7b56\u7565\uff0c\u5982\u4e0d\u91cb\u653e\u9396\u6216\u9396\u7684\u6301\u6709\u6642\u9593\u904e\u9577\uff0c\u6703\u589e\u52a0\u6b7b\u9396\u7684\u98a8\u96aa\u3002<\/li>\n<li><strong>\u7db2\u7d61\u5ef6\u9072\uff1a<\/strong>\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u7db2\u7d61\u5ef6\u9072\u53ef\u80fd\u5c0e\u81f4\u5ba2\u6236\u7aef\u7121\u6cd5\u53ca\u6642\u91cb\u653e\u9396\uff0c\u5f9e\u800c\u5f15\u767c\u6b7b\u9396\u3002<\/li>\n<\/ul>\n<h2 id=\"redis%e6%ad%bb%e9%8e%96%e7%9a%84%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-fTgEzKcror\">Redis\u6b7b\u9396\u7684\u89e3\u6c7a\u65b9\u6848<\/h2>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e8%b6%85%e6%99%82%e9%8e%96-fTgEzKcror\">1. \u4f7f\u7528\u8d85\u6642\u9396<\/h3>\n<p>\u70ba\u4e86\u907f\u514d\u6b7b\u9396\uff0c\u53ef\u4ee5\u5728\u9396\u5b9a\u8cc7\u6e90\u6642\u8a2d\u7f6e\u8d85\u6642\u3002\u9019\u6a23\uff0c\u5373\u4f7f\u67d0\u500b\u5ba2\u6236\u7aef\u672a\u80fd\u91cb\u653e\u9396\uff0c\u7cfb\u7d71\u4e5f\u80fd\u5728\u8d85\u6642\u5f8c\u81ea\u52d5\u91cb\u653e\u9396\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528\u8d85\u6642\u9396\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>SET resource_name my_random_value NX PX 30000<\/code><\/pre>\n<p>\u4e0a\u8ff0\u547d\u4ee4\u5c07\u572830\u79d2\u5f8c\u81ea\u52d5\u91cb\u653e\u9396\uff0c\u5f9e\u800c\u964d\u4f4e\u6b7b\u9396\u7684\u98a8\u96aa\u3002<\/p>\n<h3 id=\"2-%e9%8e%96%e7%9a%84%e9%87%8d%e8%a9%a6%e6%a9%9f%e5%88%b6-fTgEzKcror\">2. \u9396\u7684\u91cd\u8a66\u6a5f\u5236<\/h3>\n<p>\u5728\u7372\u53d6\u9396\u5931\u6557\u6642\uff0c\u53ef\u4ee5\u8a2d\u7f6e\u91cd\u8a66\u6a5f\u5236\u3002\u5ba2\u6236\u7aef\u5728\u7372\u53d6\u9396\u5931\u6557\u5f8c\uff0c\u7b49\u5f85\u4e00\u6bb5\u6642\u9593\u518d\u91cd\u8a66\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u8cc7\u6e90\u7af6\u722d\u7684\u6a5f\u6703\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u91cd\u8a66\u6a5f\u5236\u793a\u4f8b\uff1a<\/p>\n<pre><code>while (true) {\n    if (acquireLock()) {\n        break;\n    }\n    sleep(100); \/\/ \u7b49\u5f85100\u6beb\u79d2\u5f8c\u91cd\u8a66\n}<\/code><\/pre>\n<h3 id=\"3-%e9%8e%96%e7%9a%84%e6%8e%92%e5%ba%8f%e7%ad%96%e7%95%a5-fTgEzKcror\">3. \u9396\u7684\u6392\u5e8f\u7b56\u7565<\/h3>\n<p>\u5728\u591a\u500b\u5ba2\u6236\u7aef\u8acb\u6c42\u9396\u6642\uff0c\u53ef\u4ee5\u8a2d\u7f6e\u4e00\u500b\u5168\u5c40\u7684\u6392\u5e8f\u7b56\u7565\uff0c\u78ba\u4fdd\u5ba2\u6236\u7aef\u6309\u7167\u4e00\u5b9a\u7684\u9806\u5e8f\u8acb\u6c42\u9396\u3002\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u56e0\u70ba\u8cc7\u6e90\u7af6\u722d\u800c\u5c0e\u81f4\u7684\u6b7b\u9396\u3002<\/p>\n<h3 id=\"4-%e4%bd%bf%e7%94%a8redlock%e7%ae%97%e6%b3%95-fTgEzKcror\">4. \u4f7f\u7528Redlock\u7b97\u6cd5<\/h3>\n<p>Redlock\u662f\u4e00\u7a2e\u5206\u4f48\u5f0f\u9396\u7b97\u6cd5\uff0c\u80fd\u5920\u6709\u6548\u5730\u89e3\u6c7a\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\u7684\u6b7b\u9396\u554f\u984c\u3002\u5b83\u901a\u904e\u5728\u591a\u500bRedis\u5be6\u4f8b\u4e0a\u7372\u53d6\u9396\u4f86\u78ba\u4fdd\u9396\u7684\u6709\u6548\u6027\u3002\u4ee5\u4e0b\u662fRedlock\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<ol>\n<li>\u5728N\u500bRedis\u5be6\u4f8b\u4e0a\u7372\u53d6\u9396\u3002<\/li>\n<li>\u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\u3002<\/li>\n<li>\u5982\u679c\u5728\u5927\u591a\u6578\u5be6\u4f8b\u4e0a\u6210\u529f\u7372\u53d6\u9396\uff0c\u5247\u8a8d\u70ba\u7372\u53d6\u9396\u6210\u529f\u3002<\/li>\n<\/ol>\n<h2 id=\"%e7%b8%bd%e7%b5%90-fTgEzKcror\">\u7e3d\u7d50<\/h2>\n<p>Redis\u6b7b\u9396\u554f\u984c\u96d6\u7136\u5e38\u898b\uff0c\u4f46\u901a\u904e\u5408\u7406\u7684\u9396\u5b9a\u7b56\u7565\u548c\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u53ef\u4ee5\u5927\u5927\u964d\u4f4e\u5176\u767c\u751f\u7684\u6982\u7387\u3002\u4f7f\u7528\u8d85\u6642\u9396\u3001\u91cd\u8a66\u6a5f\u5236\u3001\u9396\u7684\u6392\u5e8f\u7b56\u7565\u4ee5\u53caRedlock\u7b97\u6cd5\u7b49\u65b9\u6cd5\uff0c\u90fd\u662f\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u53ef\u7528\u6027\u548c\u9ad8\u6027\u80fd\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684\u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u548c\u5176\u4ed6\u4f3a\u670d\u5668\u89e3\u6c7a\u65b9\u6848\u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u6b7b\u9396\u8655\u7f6e\u7684\u6709\u6548\u89e3\u6c7a\u65b9\u6848\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\uff0c\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\uff0c\u907f\u514d\u8cc7\u6e90\u6d6a\u8cbb\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-129291","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129291","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=129291"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129291\/revisions"}],"predecessor-version":[{"id":129292,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129291\/revisions\/129292"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=129291"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=129291"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=129291"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}