{"id":164565,"date":"2024-11-05T08:58:20","date_gmt":"2024-11-05T00:58:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/164565\/"},"modified":"2024-11-05T08:58:21","modified_gmt":"2024-11-05T00:58:21","slug":"%e7%ab%b6%e7%88%ad%e7%92%b0%e5%a2%83%e4%b8%adredis%e9%8e%96%e7%9a%84%e9%9b%99%e9%87%8d%e7%8d%b2%e5%8f%96%ef%bc%88redis%e9%8e%96%e5%90%8c%e6%99%82%e7%8d%b2%e5%8f%96%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/164565\/","title":{"rendered":"\u7af6\u722d\u74b0\u5883\u4e2dRedis\u9396\u7684\u96d9\u91cd\u7372\u53d6\uff08redis\u9396\u540c\u6642\u7372\u53d6\uff09"},"content":{"rendered":"<h1 id=\"%e7%ab%b6%e7%88%ad%e7%92%b0%e5%a2%83%e4%b8%adredis%e9%8e%96%e7%9a%84%e9%9b%99%e9%87%8d%e7%8d%b2%e5%8f%96%ef%bc%88redis%e9%8e%96%e5%90%8c%e6%99%82%e7%8d%b2%e5%8f%96%ef%bc%89-MMbLAXGgAA\">\u7af6\u722d\u74b0\u5883\u4e2dRedis\u9396\u7684\u96d9\u91cd\u7372\u53d6\uff08redis\u9396\u540c\u6642\u7372\u53d6\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u6578\u64da\u4e00\u81f4\u6027\u548c\u4e26\u767c\u63a7\u5236\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u6a5f\u5236\u4f86\u8655\u7406\u9019\u4e9b\u6311\u6230\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u9396\u7684\u4f7f\u7528\u3002\u672c\u6587\u5c07\u63a2\u8a0eRedis\u9396\u7684\u96d9\u91cd\u7372\u53d6\u554f\u984c\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u89e3\u6c7a\u65b9\u6848\u548c\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afredis%e9%8e%96%ef%bc%9f-MMbLAXGgAA\">\u4ec0\u9ebc\u662fRedis\u9396\uff1f<\/h2>\n<p>Redis\u9396\u662f\u4e00\u7a2e\u7528\u65bc\u63a7\u5236\u5c0d\u5171\u4eab\u8cc7\u6e90\u7684\u8a2a\u554f\u7684\u6a5f\u5236\u3002\u5b83\u53ef\u4ee5\u9632\u6b62\u591a\u500b\u9032\u7a0b\u6216\u7dda\u7a0b\u540c\u6642\u4fee\u6539\u540c\u4e00\u6578\u64da\uff0c\u5f9e\u800c\u907f\u514d\u6578\u64da\u4e0d\u4e00\u81f4\u7684\u60c5\u6cc1\u3002Redis\u9396\u901a\u5e38\u662f\u57fa\u65bcSETNX\u547d\u4ee4\u5be6\u73fe\u7684\uff0c\u9019\u500b\u547d\u4ee4\u53ea\u6709\u5728\u9375\u4e0d\u5b58\u5728\u6642\u624d\u6703\u8a2d\u7f6e\u9375\u7684\u503c\u3002<\/p>\n<h3 id=\"%e5%9f%ba%e6%9c%ac%e7%9a%84redis%e9%8e%96%e5%af%a6%e7%8f%be-MMbLAXGgAA\">\u57fa\u672c\u7684Redis\u9396\u5be6\u73fe<\/h3>\n<pre><code>SET resource_name my_random_value NX PX 30000\n<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c`resource_name`\u662f\u9396\u7684\u540d\u7a31\uff0c`my_random_value`\u662f\u4e00\u500b\u96a8\u6a5f\u751f\u6210\u7684\u503c\uff0c\u7528\u65bc\u8b58\u5225\u9396\u7684\u64c1\u6709\u8005\u3002`NX`\u8868\u793a\u53ea\u6709\u5728\u9375\u4e0d\u5b58\u5728\u6642\u624d\u8a2d\u7f6e\uff0c`PX 30000`\u5247\u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\u70ba30\u79d2\u3002<\/p>\n<h2 id=\"%e9%9b%99%e9%87%8d%e7%8d%b2%e5%8f%96%e7%9a%84%e5%95%8f%e9%a1%8c-MMbLAXGgAA\">\u96d9\u91cd\u7372\u53d6\u7684\u554f\u984c<\/h2>\n<p>\u96d9\u91cd\u7372\u53d6\u554f\u984c\u767c\u751f\u5728\u7576\u591a\u500b\u9032\u7a0b\u5617\u8a66\u540c\u6642\u7372\u53d6\u540c\u4e00\u9396\u6642\u3002\u9019\u53ef\u80fd\u5c0e\u81f4\u4ee5\u4e0b\u5e7e\u7a2e\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li><strong>\u6b7b\u9396\uff1a<\/strong>\u5982\u679c\u4e00\u500b\u9032\u7a0b\u7372\u53d6\u4e86\u9396\u4f46\u672a\u80fd\u91cb\u653e\uff0c\u5176\u4ed6\u9032\u7a0b\u5c07\u7121\u6cd5\u7372\u53d6\u9396\uff0c\u5c0e\u81f4\u7cfb\u7d71\u7121\u6cd5\u7e7c\u7e8c\u904b\u884c\u3002<\/li>\n<li><strong>\u8cc7\u6e90\u7af6\u722d\uff1a<\/strong>\u591a\u500b\u9032\u7a0b\u540c\u6642\u7372\u53d6\u9396\uff0c\u53ef\u80fd\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\uff0c\u56e0\u70ba\u5b83\u5011\u9700\u8981\u7b49\u5f85\u9396\u7684\u91cb\u653e\u3002<\/li>\n<li><strong>\u6578\u64da\u4e0d\u4e00\u81f4\uff1a<\/strong>\u5982\u679c\u9396\u7684\u5be6\u73fe\u4e0d\u7576\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u5728\u591a\u500b\u9032\u7a0b\u4e4b\u9593\u4e0d\u4e00\u81f4\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e9%9b%99%e9%87%8d%e7%8d%b2%e5%8f%96%e5%95%8f%e9%a1%8c%e7%9a%84%e7%ad%96%e7%95%a5-MMbLAXGgAA\">\u89e3\u6c7a\u96d9\u91cd\u7372\u53d6\u554f\u984c\u7684\u7b56\u7565<\/h2>\n<p>\u70ba\u4e86\u89e3\u6c7a\u96d9\u91cd\u7372\u53d6\u554f\u984c\uff0c\u53ef\u4ee5\u8003\u616e\u4ee5\u4e0b\u5e7e\u7a2e\u7b56\u7565\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8redlock%e7%ae%97%e6%b3%95-MMbLAXGgAA\">1. \u4f7f\u7528Redlock\u7b97\u6cd5<\/h3>\n<p>Redlock\u662f\u4e00\u7a2e\u5206\u4f48\u5f0f\u9396\u7b97\u6cd5\uff0c\u7531Redis\u7684\u5275\u59cb\u4ebaAntirez\u63d0\u51fa\u3002\u5b83\u901a\u904e\u5728\u591a\u500bRedis\u5be6\u4f8b\u4e0a\u7372\u53d6\u9396\u4f86\u63d0\u9ad8\u53ef\u9760\u6027\u3002\u9019\u6a23\uff0c\u5373\u4f7f\u67d0\u500bRedis\u5be6\u4f8b\u5931\u6548\uff0c\u5176\u4ed6\u5be6\u4f8b\u4ecd\u7136\u53ef\u4ee5\u63d0\u4f9b\u9396\u7684\u529f\u80fd\u3002<\/p>\n<h3 id=\"2-%e8%a8%ad%e7%bd%ae%e9%8e%96%e7%9a%84%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93-MMbLAXGgAA\">2. \u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593<\/h3>\n<p>\u70ba\u4e86\u9632\u6b62\u6b7b\u9396\uff0c\u53ef\u4ee5\u70ba\u9396\u8a2d\u7f6e\u4e00\u500b\u5408\u7406\u7684\u904e\u671f\u6642\u9593\u3002\u9019\u6a23\uff0c\u5373\u4f7f\u7372\u53d6\u9396\u7684\u9032\u7a0b\u5d29\u6f70\uff0c\u9396\u4e5f\u6703\u5728\u4e00\u5b9a\u6642\u9593\u5f8c\u81ea\u52d5\u91cb\u653e\u3002<\/p>\n<pre><code>SET resource_name my_random_value NX PX 30000\n<\/code><\/pre>\n<h3 id=\"3-%e9%8e%96%e7%9a%84%e9%87%8d%e8%a9%a6%e6%a9%9f%e5%88%b6-MMbLAXGgAA\">3. \u9396\u7684\u91cd\u8a66\u6a5f\u5236<\/h3>\n<p>\u5728\u7372\u53d6\u9396\u5931\u6557\u6642\uff0c\u53ef\u4ee5\u5be6\u73fe\u4e00\u500b\u91cd\u8a66\u6a5f\u5236\uff0c\u8b93\u9032\u7a0b\u5728\u4e00\u5b9a\u6642\u9593\u5f8c\u518d\u6b21\u5617\u8a66\u7372\u53d6\u9396\u3002\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u8cc7\u6e90\u7af6\u722d\u7684\u60c5\u6cc1\u3002<\/p>\n<pre><code>while (true) {\n    if (SET resource_name my_random_value NX PX 30000) {\n        break; \/\/ \u7372\u53d6\u9396\u6210\u529f\n    }\n    sleep(100); \/\/ \u7b49\u5f85100\u6beb\u79d2\u5f8c\u91cd\u8a66\n}\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-MMbLAXGgAA\">\u7d50\u8ad6<\/h2>\n<p>\u5728\u7af6\u722d\u74b0\u5883\u4e2d\uff0cRedis\u9396\u7684\u96d9\u91cd\u7372\u53d6\u554f\u984c\u662f\u4e00\u500b\u9700\u8981\u8b39\u614e\u8655\u7406\u7684\u6311\u6230\u3002\u901a\u904e\u4f7f\u7528Redlock\u7b97\u6cd5\u3001\u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\u4ee5\u53ca\u5be6\u73fe\u9396\u7684\u91cd\u8a66\u6a5f\u5236\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u6e1b\u5c11\u9019\u4e9b\u554f\u984c\u7684\u5f71\u97ff\u3002\u9019\u4e9b\u7b56\u7565\u4e0d\u50c5\u80fd\u63d0\u9ad8\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\uff0c\u9084\u80fd\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u4f86\u7ba1\u7406\u60a8\u7684\u6578\u64da\u548c\u61c9\u7528\u7a0b\u5e8f\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\u4f86\u652f\u6301\u60a8\u7684Redis\u90e8\u7f72\uff0c\u78ba\u4fdd\u60a8\u7684\u7cfb\u7d71\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e2d\u7a69\u5b9a\u904b\u884c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u9396\u5728\u7af6\u722d\u74b0\u5883\u4e2d\u7684\u96d9\u91cd\u7372\u53d6\u6280\u8853\uff0c\u63d0\u5347\u7cfb\u7d71\u6548\u7387\u8207\u8cc7\u6e90\u7ba1\u7406\uff0c\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u8207\u5b89\u5168\u6027\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-164565","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/164565","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=164565"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/164565\/revisions"}],"predecessor-version":[{"id":164566,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/164565\/revisions\/164566"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=164565"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=164565"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=164565"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}