{"id":169991,"date":"2024-11-06T20:14:19","date_gmt":"2024-11-06T12:14:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/169991\/"},"modified":"2024-11-06T20:14:19","modified_gmt":"2024-11-06T12:14:19","slug":"%e5%93%aa%e4%b8%80%e6%8a%8a%e9%8e%96%e5%8f%af%e4%bb%a5%e6%9b%b4%e5%a5%bd%e5%9c%b0%e4%bf%9d%e8%ad%b7redis%ef%bc%88redis%e7%9a%84which%e9%8e%96%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/169991\/","title":{"rendered":"\u54ea\u4e00\u628a\u9396\u53ef\u4ee5\u66f4\u597d\u5730\u4fdd\u8b77Redis\uff08redis\u7684which\u9396\uff09"},"content":{"rendered":"<h1 id=\"%e5%93%aa%e4%b8%80%e6%8a%8a%e9%8e%96%e5%8f%af%e4%bb%a5%e6%9b%b4%e5%a5%bd%e5%9c%b0%e4%bf%9d%e8%ad%b7redis%ef%bc%88redis%e7%9a%84which%e9%8e%96%ef%bc%89-icVTRRLyns\">\u54ea\u4e00\u628a\u9396\u53ef\u4ee5\u66f4\u597d\u5730\u4fdd\u8b77Redis\uff08redis\u7684which\u9396\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\uff0c\u5305\u62ec\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u5be6\u6642\u6578\u64da\u8655\u7406\u7b49\u3002\u7136\u800c\uff0c\u96a8\u8457\u4f7f\u7528\u8005\u5c0d\u6578\u64da\u5b89\u5168\u6027\u8981\u6c42\u7684\u63d0\u9ad8\uff0c\u5982\u4f55\u6709\u6548\u5730\u4fdd\u8b77Redis\u4e2d\u7684\u6578\u64da\u6210\u70ba\u4e86\u4e00\u500b\u91cd\u8981\u7684\u8ab2\u984c\u3002\u5728\u9019\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u5011\u5c07\u63a2\u8a0eRedis\u4e2d\u7684\u9396\u6a5f\u5236\uff0c\u7279\u5225\u662f\u201c\u54ea\u4e00\u628a\u9396\u53ef\u4ee5\u66f4\u597d\u5730\u4fdd\u8b77Redis\u201d\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e9%8e%96%e6%a9%9f%e5%88%b6%e6%a6%82%e8%bf%b0-icVTRRLyns\">Redis\u7684\u9396\u6a5f\u5236\u6982\u8ff0<\/h2>\n<p>Redis\u672c\u8eab\u4e26\u4e0d\u63d0\u4f9b\u5167\u5efa\u7684\u9396\u6a5f\u5236\uff0c\u4f46\u958b\u767c\u8005\u53ef\u4ee5\u901a\u904e\u4e00\u4e9b\u7b56\u7565\u4f86\u5be6\u73fe\u9396\u7684\u529f\u80fd\u3002\u6700\u5e38\u898b\u7684\u9396\u5be6\u73fe\u65b9\u5f0f\u662f\u4f7f\u7528Redis\u7684SETNX\u547d\u4ee4\u3002SETNX\uff08Set if Not eXists\uff09\u547d\u4ee4\u53ef\u4ee5\u7528\u4f86\u5275\u5efa\u4e00\u500b\u9396\uff0c\u7576\u9396\u4e0d\u5b58\u5728\u6642\u8a2d\u7f6e\u5b83\uff0c\u4e26\u8fd4\u56de1\uff1b\u5982\u679c\u9396\u5df2\u7d93\u5b58\u5728\uff0c\u5247\u8fd4\u56de0\u3002<\/p>\n<pre><code>SETNX lock_key 1\n<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u7684\u610f\u601d\u662f\uff0c\u5982\u679c\u201clock_key\u201d\u4e0d\u5b58\u5728\uff0c\u5247\u8a2d\u7f6e\u5b83\u7684\u503c\u70ba1\uff0c\u8868\u793a\u9396\u5df2\u7d93\u88ab\u4f54\u7528\u3002\u9019\u7a2e\u65b9\u6cd5\u7c21\u55ae\u6613\u7528\uff0c\u4f46\u5728\u9ad8\u4f75\u767c\u7684\u60c5\u6cc1\u4e0b\uff0c\u53ef\u80fd\u6703\u51fa\u73fe\u7af6\u722d\u689d\u4ef6\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e5%88%86%e5%b8%83%e5%bc%8f%e9%8e%96-icVTRRLyns\">Redis\u7684\u5206\u5e03\u5f0f\u9396<\/h2>\n<p>\u5728\u5206\u5e03\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u4f7f\u7528Redis\u4f5c\u70ba\u9396\u7684\u5b58\u5132\u4ecb\u8cea\u6642\uff0c\u5fc5\u9808\u8003\u616e\u5230\u591a\u500b\u5be6\u4f8b\u4e4b\u9593\u7684\u5354\u8abf\u3002\u70ba\u4e86\u89e3\u6c7a\u9019\u500b\u554f\u984c\uff0c\u958b\u767c\u8005\u901a\u5e38\u6703\u4f7f\u7528Redlock\u7b97\u6cd5\u3002Redlock\u662f\u4e00\u7a2e\u57fa\u65bcRedis\u7684\u5206\u5e03\u5f0f\u9396\u5be6\u73fe\uff0c\u80fd\u5920\u5728\u591a\u500bRedis\u5be6\u4f8b\u4e4b\u9593\u63d0\u4f9b\u4e00\u81f4\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n<h3 id=\"redlock%e7%ae%97%e6%b3%95%e7%9a%84%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86-icVTRRLyns\">Redlock\u7b97\u6cd5\u7684\u5de5\u4f5c\u539f\u7406<\/h3>\n<ul>\n<li>\u9996\u5148\uff0c\u5ba2\u6236\u7aef\u5411\u591a\u500bRedis\u5be6\u4f8b\u8acb\u6c42\u9396\u3002<\/li>\n<li>\u6bcf\u500b\u5be6\u4f8b\u5728\u63a5\u6536\u5230\u8acb\u6c42\u5f8c\uff0c\u4f7f\u7528SETNX\u547d\u4ee4\u8a2d\u7f6e\u9396\u3002<\/li>\n<li>\u5982\u679c\u5927\u591a\u6578\u5be6\u4f8b\u6210\u529f\u8a2d\u7f6e\u4e86\u9396\uff0c\u5247\u5ba2\u6236\u7aef\u7372\u5f97\u9396\u3002<\/li>\n<li>\u9396\u7684\u6709\u6548\u671f\u5fc5\u9808\u8a2d\u7f6e\u70ba\u4e00\u500b\u5408\u7406\u7684\u6642\u9593\uff0c\u4ee5\u9632\u6b62\u6b7b\u9396\u3002<\/li>\n<\/ul>\n<p>\u9019\u7a2e\u65b9\u6cd5\u7684\u512a\u52e2\u5728\u65bc\uff0c\u5373\u4f7f\u67d0\u4e9bRedis\u5be6\u4f8b\u5931\u6548\uff0c\u4ecd\u7136\u53ef\u4ee5\u4fdd\u8b49\u9396\u7684\u6709\u6548\u6027\uff0c\u5f9e\u800c\u63d0\u9ad8\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8redis%e9%8e%96%e7%9a%84%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-icVTRRLyns\">\u4f7f\u7528Redis\u9396\u7684\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528Redis\u9396\u6642\uff0c\u6709\u5e7e\u500b\u6ce8\u610f\u4e8b\u9805\u9700\u8981\u8003\u616e\uff1a<\/p>\n<ul>\n<li><strong>\u9396\u7684\u8d85\u6642\u8a2d\u7f6e\uff1a<\/strong>\u5fc5\u9808\u70ba\u9396\u8a2d\u7f6e\u5408\u7406\u7684\u8d85\u6642\u6642\u9593\uff0c\u4ee5\u9632\u6b62\u6b7b\u9396\u7684\u60c5\u6cc1\u767c\u751f\u3002<\/li>\n<li><strong>\u9396\u7684\u91cb\u653e\uff1a<\/strong>\u78ba\u4fdd\u5728\u696d\u52d9\u908f\u8f2f\u57f7\u884c\u5b8c\u7562\u5f8c\uff0c\u53ca\u6642\u91cb\u653e\u9396\uff0c\u4ee5\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u8cc7\u6e90\u4f54\u7528\u3002<\/li>\n<li><strong>\u91cd\u8a66\u6a5f\u5236\uff1a<\/strong>\u5728\u7372\u53d6\u9396\u5931\u6557\u7684\u60c5\u6cc1\u4e0b\uff0c\u61c9\u8a72\u8a2d\u7f6e\u91cd\u8a66\u6a5f\u5236\uff0c\u4ee5\u63d0\u9ad8\u9396\u7684\u7372\u53d6\u6210\u529f\u7387\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-icVTRRLyns\">\u7d50\u8ad6<\/h2>\n<p>\u5728\u9078\u64c7\u9069\u5408\u7684\u9396\u4f86\u4fdd\u8b77Redis\u6578\u64da\u6642\uff0c\u958b\u767c\u8005\u9700\u8981\u6839\u64da\u5177\u9ad4\u7684\u61c9\u7528\u5834\u666f\u548c\u9700\u6c42\u4f86\u9078\u64c7\u5408\u9069\u7684\u9396\u6a5f\u5236\u3002\u7121\u8ad6\u662f\u4f7f\u7528\u7c21\u55ae\u7684SETNX\u547d\u4ee4\u9084\u662f\u66f4\u70ba\u8907\u96dc\u7684Redlock\u7b97\u6cd5\uff0c\u6b63\u78ba\u7684\u9396\u5be6\u73fe\u90fd\u80fd\u6709\u6548\u63d0\u9ad8\u6578\u64da\u7684\u5b89\u5168\u6027\u548c\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u4f86\u90e8\u7f72Redis\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u670d\u52d9\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u61c9\u7528\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u548c\u5b89\u5168\u7684\u74b0\u5883\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u4e2d\u7684\u9396\u6a5f\u5236\uff0c\u4e86\u89e3\u54ea\u4e00\u628a\u9396\u80fd\u66f4\u6709\u6548\u5730\u4fdd\u8b77\u6578\u64da\u5b89\u5168\uff0c\u63d0\u5347\u6027\u80fd\u8207\u7a69\u5b9a\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-169991","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/169991","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=169991"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/169991\/revisions"}],"predecessor-version":[{"id":169992,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/169991\/revisions\/169992"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=169991"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=169991"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=169991"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}