{"id":81384,"date":"2024-10-16T15:21:15","date_gmt":"2024-10-16T07:21:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/81384\/"},"modified":"2024-10-16T15:21:15","modified_gmt":"2024-10-16T07:21:15","slug":"nonblocking%e9%8e%96redis%e5%af%a6%e7%8f%be%e9%ab%98%e6%80%a7%e8%83%bd%e8%a8%aa%e5%95%8f%e6%8e%a7%e5%88%b6%ef%bc%88redis%e9%8e%96%e6%98%af%e9%9d%9e%e9%98%bb%e5%a1%9e%e7%9a%84%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/81384\/","title":{"rendered":"NONBLOCKING\u9396Redis\u5be6\u73fe\u9ad8\u6027\u80fd\u8a2a\u554f\u63a7\u5236\uff08Redis\u9396\u662f\u975e\u963b\u585e\u7684\uff09"},"content":{"rendered":"<h1 id=\"nonblocking%e9%8e%96redis%e5%af%a6%e7%8f%be%e9%ab%98%e6%80%a7%e8%83%bd%e8%a8%aa%e5%95%8f%e6%8e%a7%e5%88%b6-LezzSAGHmf\">NONBLOCKING\u9396Redis\u5be6\u73fe\u9ad8\u6027\u80fd\u8a2a\u554f\u63a7\u5236<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u8a2a\u554f\u63a7\u5236\u662f\u4e00\u500b\u81f3\u95dc\u91cd\u8981\u7684\u554f\u984c\u3002\u96a8\u8457\u61c9\u7528\u7a0b\u5e8f\u7684\u589e\u9577\uff0c\u5982\u4f55\u6709\u6548\u5730\u7ba1\u7406\u8cc7\u6e90\u7684\u8a2a\u554f\u8b8a\u5f97\u6108\u52a0\u91cd\u8981\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6027\u80fd\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u6a5f\u5236\u4f86\u5be6\u73fe\u8a2a\u554f\u63a7\u5236\uff0c\u5176\u4e2d\u975e\u963b\u585e\u9396\uff08NONBLOCKING\u9396\uff09\u662f\u4e00\u500b\u975e\u5e38\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afredis%e9%8e%96%ef%bc%9f-LezzSAGHmf\">\u4ec0\u9ebc\u662fRedis\u9396\uff1f<\/h2>\n<p>Redis\u9396\u662f\u4e00\u7a2e\u7528\u65bc\u63a7\u5236\u5c0d\u5171\u4eab\u8cc7\u6e90\u8a2a\u554f\u7684\u6a5f\u5236\u3002\u5b83\u53ef\u4ee5\u9632\u6b62\u591a\u500b\u9032\u7a0b\u540c\u6642\u8a2a\u554f\u540c\u4e00\u8cc7\u6e90\uff0c\u5f9e\u800c\u907f\u514d\u6578\u64da\u4e0d\u4e00\u81f4\u7684\u554f\u984c\u3002\u50b3\u7d71\u7684\u9396\u901a\u5e38\u662f\u963b\u585e\u7684\uff0c\u9019\u610f\u5473\u8457\u7576\u4e00\u500b\u9032\u7a0b\u7372\u5f97\u9396\u6642\uff0c\u5176\u4ed6\u9032\u7a0b\u5fc5\u9808\u7b49\u5f85\uff0c\u9019\u53ef\u80fd\u5c0e\u81f4\u6027\u80fd\u74f6\u9838\u3002<\/p>\n<h2 id=\"%e9%9d%9e%e9%98%bb%e5%a1%9e%e9%8e%96%e7%9a%84%e5%84%aa%e5%8b%a2-LezzSAGHmf\">\u975e\u963b\u585e\u9396\u7684\u512a\u52e2<\/h2>\n<p>\u975e\u963b\u585e\u9396\u7684\u4e3b\u8981\u512a\u52e2\u5728\u65bc\u5b83\u4e0d\u6703\u4f7f\u8acb\u6c42\u9032\u7a0b\u7b49\u5f85\u3002\u7576\u4e00\u500b\u9032\u7a0b\u5617\u8a66\u7372\u53d6\u9396\u6642\uff0c\u5982\u679c\u9396\u5df2\u88ab\u5176\u4ed6\u9032\u7a0b\u6301\u6709\uff0c\u5b83\u5c07\u7acb\u5373\u8fd4\u56de\u5931\u6557\uff0c\u800c\u4e0d\u662f\u9032\u5165\u7b49\u5f85\u72c0\u614b\u3002\u9019\u6a23\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u7cfb\u7d71\u7684\u541e\u5410\u91cf\uff0c\u7279\u5225\u662f\u5728\u9ad8\u4e26\u767c\u7684\u5834\u666f\u4e2d\u3002<\/p>\n<h3 id=\"%e5%a6%82%e4%bd%95%e5%af%a6%e7%8f%beredis%e9%9d%9e%e9%98%bb%e5%a1%9e%e9%8e%96-LezzSAGHmf\">\u5982\u4f55\u5be6\u73feRedis\u975e\u963b\u585e\u9396<\/h3>\n<p>\u5728Redis\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528SETNX\u547d\u4ee4\u4f86\u5be6\u73fe\u975e\u963b\u585e\u9396\u3002SETNX\u547d\u4ee4\u7684\u5168\u540d\u662f\u201cSET if Not eXists\u201d\uff0c\u5b83\u7684\u4f5c\u7528\u662f\u53ea\u6709\u5728\u9375\u4e0d\u5b58\u5728\u7684\u60c5\u6cc1\u4e0b\u624d\u6703\u8a2d\u7f6e\u9375\u7684\u503c\u3002\u9019\u4f7f\u5f97\u6211\u5011\u53ef\u4ee5\u8f15\u9b06\u5730\u5be6\u73fe\u9396\u7684\u7372\u53d6\u548c\u91cb\u653e\u3002<\/p>\n<pre><code>\n# \u7372\u53d6\u9396\nSETNX lock_key unique_lock_value\n# \u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\nEXPIRE lock_key 10\n<\/code><\/pre>\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u78bc\u4e2d\uff0c\u7576\u4e00\u500b\u9032\u7a0b\u6210\u529f\u7372\u53d6\u9396\u6642\uff0c\u5b83\u6703\u8a2d\u7f6e\u4e00\u500b\u552f\u4e00\u7684\u9396\u503c\uff08unique_lock_value\uff09\uff0c\u4e26\u70ba\u9396\u8a2d\u7f6e\u4e00\u500b\u904e\u671f\u6642\u9593\uff0c\u4ee5\u9632\u6b62\u6b7b\u9396\u7684\u60c5\u6cc1\u767c\u751f\u3002<\/p>\n<h3 id=\"%e9%87%8b%e6%94%be%e9%8e%96-LezzSAGHmf\">\u91cb\u653e\u9396<\/h3>\n<p>\u91cb\u653e\u9396\u7684\u904e\u7a0b\u4e5f\u9700\u8981\u8b39\u614e\uff0c\u4ee5\u78ba\u4fdd\u53ea\u6709\u6301\u6709\u9396\u7684\u9032\u7a0b\u624d\u80fd\u91cb\u653e\u5b83\u3002\u9019\u53ef\u4ee5\u901a\u904e\u6aa2\u67e5\u9396\u7684\u503c\u4f86\u5be6\u73fe\uff1a<\/p>\n<pre><code>\n# \u91cb\u653e\u9396\nif GET lock_key == unique_lock_value:\n    DEL lock_key\n<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u78ba\u4fdd\u53ea\u6709\u6301\u6709\u9396\u7684\u9032\u7a0b\u624d\u80fd\u91cb\u653e\u9396\uff0c\u5f9e\u800c\u907f\u514d\u4e86\u5176\u4ed6\u9032\u7a0b\u8aa4\u91cb\u653e\u9396\u7684\u60c5\u6cc1\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e5%a0%b4%e6%99%af-LezzSAGHmf\">\u4f7f\u7528\u5834\u666f<\/h2>\n<p>\u975e\u963b\u585e\u9396\u7279\u5225\u9069\u5408\u65bc\u4ee5\u4e0b\u5834\u666f\uff1a<\/p>\n<ul>\n<li>\u9ad8\u4e26\u767c\u7684\u8acb\u6c42\u8655\u7406\uff0c\u4f8b\u5982\u5728\u7dda\u904a\u6232\u6216\u96fb\u5b50\u5546\u52d9\u5e73\u53f0\u3002<\/li>\n<li>\u9700\u8981\u5feb\u901f\u97ff\u61c9\u7684\u7cfb\u7d71\uff0c\u907f\u514d\u56e0\u9396\u7af6\u722d\u5c0e\u81f4\u7684\u5ef6\u9072\u3002<\/li>\n<li>\u9700\u8981\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u7684\u64cd\u4f5c\uff0c\u4f8b\u5982\u8f49\u8cec\u6216\u8a02\u55ae\u8655\u7406\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-LezzSAGHmf\">\u7e3d\u7d50<\/h2>\n<p>\u975e\u963b\u585e\u9396\u5728Redis\u4e2d\u63d0\u4f9b\u4e86\u4e00\u7a2e\u9ad8\u6548\u7684\u8a2a\u554f\u63a7\u5236\u6a5f\u5236\uff0c\u80fd\u5920\u986f\u8457\u63d0\u9ad8\u7cfb\u7d71\u7684\u6027\u80fd\u548c\u97ff\u61c9\u901f\u5ea6\u3002\u901a\u904e\u5408\u7406\u5730\u4f7f\u7528SETNX\u547d\u4ee4\u548c\u904e\u671f\u6642\u9593\u8a2d\u7f6e\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u8cc7\u6e90\u7684\u8a2a\u554f\uff0c\u907f\u514d\u56e0\u9396\u7af6\u722d\u5c0e\u81f4\u7684\u6027\u80fd\u74f6\u9838\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6027\u80fd\u548c\u9ad8\u53ef\u7528\u6027\u7684\u61c9\u7528\u7a0b\u5e8f\uff0cRedis\u7684\u975e\u963b\u585e\u9396\u662f\u4e00\u500b\u503c\u5f97\u8003\u616e\u7684\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6027\u80fd\u7684\u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\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>\uff0c\u4ee5\u4fbf\u66f4\u597d\u5730\u5be6\u73fe\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22NONBLOCKING\u9396\u5728Redis\u4e2d\u7684\u9ad8\u6027\u80fd\u8a2a\u554f\u63a7\u5236\uff0c\u5be6\u73fe\u975e\u963b\u585e\u9396\u5b9a\uff0c\u63d0\u5347\u7cfb\u7d71\u6548\u7387\u8207\u97ff\u61c9\u901f\u5ea6\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-81384","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/81384","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=81384"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/81384\/revisions"}],"predecessor-version":[{"id":81385,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/81384\/revisions\/81385"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=81384"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=81384"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=81384"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}