{"id":129385,"date":"2024-10-26T21:14:18","date_gmt":"2024-10-26T13:14:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/129385\/"},"modified":"2024-10-26T21:14:19","modified_gmt":"2024-10-26T13:14:19","slug":"redis%e9%8e%96%e8%a7%a3%e9%99%a4%e5%b9%bb%e6%83%b3%e4%b8%ad%e7%9a%84%e6%9d%9f%e7%b8%9b%ef%bc%88redis%e9%8e%96-%e5%b9%bb%e8%ae%80%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/129385\/","title":{"rendered":"Redis\u9396\u89e3\u9664\u5e7b\u60f3\u4e2d\u7684\u675f\u7e1b\uff08redis\u9396 \u5e7b\u8b80\uff09"},"content":{"rendered":"<h1 id=\"redis%e9%8e%96%e8%a7%a3%e9%99%a4%e5%b9%bb%e6%83%b3%e4%b8%ad%e7%9a%84%e6%9d%9f%e7%b8%9b%ef%bc%88redis%e9%8e%96-%e5%b9%bb%e8%ae%80%ef%bc%89-oQsPftAHmF\">Redis\u9396\u89e3\u9664\u5e7b\u60f3\u4e2d\u7684\u675f\u7e1b\uff08redis\u9396 \u5e7b\u8b80\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\u9396\u6a5f\u5236\u4f86\u89e3\u6c7a\u9019\u4e9b\u554f\u984c\u3002\u7136\u800c\uff0c\u5c0d\u65bcRedis\u9396\u7684\u4f7f\u7528\uff0c\u7279\u5225\u662f\u5e7b\u8b80\uff08Phantom Read\uff09\u554f\u984c\uff0c\u8a31\u591a\u958b\u767c\u8005\u4ecd\u7136\u5b58\u5728\u4e00\u4e9b\u8aa4\u89e3\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eRedis\u9396\u7684\u5de5\u4f5c\u539f\u7406\u53ca\u5176\u5728\u5e7b\u8b80\u60c5\u5883\u4e0b\u7684\u61c9\u7528\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afredis%e9%8e%96%ef%bc%9f-oQsPftAHmF\">\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\u4fee\u6539\u540c\u4e00\u6578\u64da\uff0c\u5f9e\u800c\u4fdd\u8b49\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002Redis\u63d0\u4f9b\u4e86\u591a\u7a2e\u9396\u7684\u5be6\u73fe\u65b9\u5f0f\uff0c\u5176\u4e2d\u6700\u5e38\u898b\u7684\u662f\u57fa\u65bcSETNX\u547d\u4ee4\u7684\u9396\u3002<\/p>\n<pre><code>SET lock_key unique_value NX PX 30000\n<\/code><\/pre>\n<p>\u4e0a\u8ff0\u547d\u4ee4\u7684\u542b\u7fa9\u662f\uff1a\u5982\u679c\u9396\u9375\uff08lock_key\uff09\u4e0d\u5b58\u5728\uff0c\u5247\u8a2d\u7f6e\u5b83\u7684\u503c\u70baunique_value\uff0c\u4e26\u4e14\u572830\u79d2\u5f8c\u81ea\u52d5\u904e\u671f\u3002\u9019\u6a23\u53ef\u4ee5\u9632\u6b62\u6b7b\u9396\u7684\u60c5\u6cc1\u767c\u751f\u3002<\/p>\n<h2 id=\"%e5%b9%bb%e8%ae%80%e7%9a%84%e6%a6%82%e5%bf%b5-oQsPftAHmF\">\u5e7b\u8b80\u7684\u6982\u5ff5<\/h2>\n<p>\u5e7b\u8b80\u662f\u6307\u5728\u540c\u4e00\u4e8b\u52d9\u4e2d\uff0c\u7576\u4e00\u500b\u67e5\u8a62\u7684\u7d50\u679c\u5728\u4e8b\u52d9\u57f7\u884c\u904e\u7a0b\u4e2d\u767c\u751f\u8b8a\u5316\uff0c\u5c0e\u81f4\u5f8c\u7e8c\u67e5\u8a62\u7684\u7d50\u679c\u8207\u7b2c\u4e00\u6b21\u67e5\u8a62\u4e0d\u4e00\u81f4\u7684\u60c5\u6cc1\u3002\u9019\u901a\u5e38\u767c\u751f\u5728\u591a\u500b\u4e8b\u52d9\u4e26\u884c\u57f7\u884c\u6642\uff0c\u7279\u5225\u662f\u5728\u6c92\u6709\u9069\u7576\u9396\u5b9a\u7684\u60c5\u6cc1\u4e0b\u3002<\/p>\n<h2 id=\"redis%e9%8e%96%e8%88%87%e5%b9%bb%e8%ae%80%e7%9a%84%e9%97%9c%e4%bf%82-oQsPftAHmF\">Redis\u9396\u8207\u5e7b\u8b80\u7684\u95dc\u4fc2<\/h2>\n<p>\u5728\u4f7f\u7528Redis\u9396\u6642\uff0c\u958b\u767c\u8005\u9700\u8981\u7279\u5225\u6ce8\u610f\u5e7b\u8b80\u554f\u984c\u3002\u96d6\u7136Redis\u9396\u53ef\u4ee5\u9632\u6b62\u540c\u4e00\u6642\u9593\u5167\u591a\u500b\u9032\u7a0b\u5c0d\u540c\u4e00\u8cc7\u6e90\u7684\u4fee\u6539\uff0c\u4f46\u5b83\u4e26\u4e0d\u80fd\u5b8c\u5168\u89e3\u6c7a\u5e7b\u8b80\u554f\u984c\u3002\u9019\u662f\u56e0\u70ba\u5728\u9396\u7684\u7bc4\u570d\u5167\uff0c\u5176\u4ed6\u4e8b\u52d9\u4ecd\u7136\u53ef\u4ee5\u63d2\u5165\u65b0\u7684\u6578\u64da\uff0c\u5f9e\u800c\u5f71\u97ff\u67e5\u8a62\u7d50\u679c\u3002<\/p>\n<h3 id=\"%e8%a7%a3%e6%b1%ba%e5%b9%bb%e8%ae%80%e7%9a%84%e7%ad%96%e7%95%a5-oQsPftAHmF\">\u89e3\u6c7a\u5e7b\u8b80\u7684\u7b56\u7565<\/h3>\n<ul>\n<li><strong>\u4f7f\u7528\u66f4\u9ad8\u7d1a\u5225\u7684\u9396\uff1a<\/strong>\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u5206\u4f48\u5f0f\u9396\u4f86\u63a7\u5236\u5c0d\u6578\u64da\u7684\u8a2a\u554f\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u5e7b\u8b80\u7684\u53ef\u80fd\u6027\u3002<\/li>\n<li><strong>\u91cd\u8a66\u6a5f\u5236\uff1a<\/strong>\u5728\u6aa2\u6e2c\u5230\u5e7b\u8b80\u5f8c\uff0c\u53ef\u4ee5\u8a2d\u8a08\u91cd\u8a66\u6a5f\u5236\uff0c\u91cd\u65b0\u57f7\u884c\u67e5\u8a62\u4ee5\u7372\u53d6\u6700\u65b0\u7684\u6578\u64da\u3002<\/li>\n<li><strong>\u4f7f\u7528\u4e8b\u52d9\uff1a<\/strong>\u5728Redis\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528MULTI\u548cEXEC\u547d\u4ee4\u4f86\u5be6\u73fe\u4e8b\u52d9\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u5728\u4e8b\u52d9\u57f7\u884c\u671f\u9593\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002<\/li>\n<\/ul>\n<pre><code>MULTI\nGET key1\nGET key2\nEXEC\n<\/code><\/pre>\n<p>\u9019\u6a23\u7684\u4e8b\u52d9\u53ef\u4ee5\u78ba\u4fdd\u5728\u57f7\u884c\u671f\u9593\uff0c\u5176\u4ed6\u64cd\u4f5c\u4e0d\u6703\u5f71\u97ff\u5230\u67e5\u8a62\u7d50\u679c\u3002<\/p>\n<h2 id=\"%e5%af%a6%e9%9a%9b%e6%a1%88%e4%be%8b%e5%88%86%e6%9e%90-oQsPftAHmF\">\u5be6\u969b\u6848\u4f8b\u5206\u6790<\/h2>\n<p>\u5047\u8a2d\u6709\u4e00\u500b\u96fb\u5546\u5e73\u53f0\uff0c\u7576\u7528\u6236\u4e0b\u55ae\u6642\uff0c\u9700\u8981\u6aa2\u67e5\u5eab\u5b58\u6578\u91cf\u3002\u5982\u679c\u5728\u6aa2\u67e5\u5eab\u5b58\u548c\u6e1b\u5c11\u5eab\u5b58\u4e4b\u9593\uff0c\u53e6\u4e00\u500b\u7528\u6236\u4e5f\u4e0b\u55ae\uff0c\u9019\u53ef\u80fd\u5c0e\u81f4\u5eab\u5b58\u6578\u64da\u7684\u4e0d\u4e00\u81f4\u3002\u4f7f\u7528Redis\u9396\u53ef\u4ee5\u9632\u6b62\u540c\u6642\u4fee\u6539\u5eab\u5b58\uff0c\u4f46\u5982\u679c\u4e0d\u8003\u616e\u5e7b\u8b80\uff0c\u4ecd\u7136\u53ef\u80fd\u51fa\u73fe\u554f\u984c\u3002<\/p>\n<p>\u5728\u9019\u7a2e\u60c5\u6cc1\u4e0b\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528\u5206\u4f48\u5f0f\u9396\u4f86\u78ba\u4fdd\u5728\u6aa2\u67e5\u5eab\u5b58\u548c\u6e1b\u5c11\u5eab\u5b58\u7684\u904e\u7a0b\u4e2d\uff0c\u5176\u4ed6\u8acb\u6c42\u7121\u6cd5\u9032\u884c\u5eab\u5b58\u7684\u4fee\u6539\uff0c\u5f9e\u800c\u6709\u6548\u907f\u514d\u5e7b\u8b80\u7684\u767c\u751f\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-oQsPftAHmF\">\u7d50\u8ad6<\/h2>\n<p>Redis\u9396\u5728\u89e3\u6c7a\u4e26\u767c\u554f\u984c\u65b9\u9762\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u652f\u6301\uff0c\u4f46\u5728\u9762\u5c0d\u5e7b\u8b80\u554f\u984c\u6642\uff0c\u958b\u767c\u8005\u9700\u8981\u63a1\u53d6\u984d\u5916\u7684\u63aa\u65bd\u4f86\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002\u901a\u904e\u5408\u7406\u7684\u9396\u7b56\u7565\u548c\u91cd\u8a66\u6a5f\u5236\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u6e1b\u5c11\u5e7b\u8b80\u7684\u5f71\u97ff\uff0c\u5f9e\u800c\u63d0\u9ad8\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n<p>\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u7121\u8ad6\u662f\u4f7f\u7528Redis\u9084\u662f\u5176\u4ed6\u6280\u8853\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u90fd\u662f\u958b\u767c\u8005\u9700\u8981\u6301\u7e8c\u95dc\u6ce8\u7684\u91cd\u9ede\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u9396\u7684\u5e7b\u8b80\u554f\u984c\uff0c\u63ed\u793a\u5982\u4f55\u89e3\u9664\u5176\u675f\u7e1b\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u8207\u6578\u64da\u4e00\u81f4\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-129385","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129385","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=129385"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129385\/revisions"}],"predecessor-version":[{"id":129386,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/129385\/revisions\/129386"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=129385"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=129385"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=129385"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}