{"id":159927,"date":"2024-11-03T18:49:25","date_gmt":"2024-11-03T10:49:25","guid":{"rendered":"https:\/\/server.hk\/cnblog\/159927\/"},"modified":"2024-11-03T18:49:27","modified_gmt":"2024-11-03T10:49:27","slug":"redis-%e9%8e%96%e9%98%bb%e5%a1%9e%ef%bc%9a%e7%b4%85%e9%8e%96%e7%b7%8a%e9%96%89-redis-%e7%9a%84%e9%98%bb%e5%a1%9e%e6%80%a7%e5%af%a6%e7%8f%be","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/159927\/","title":{"rendered":"REDIS \u9396\u963b\u585e\uff1a\u7d05\u9396\u7dca\u9589 Redis \u7684\u963b\u585e\u6027\u5be6\u73fe"},"content":{"rendered":"<h1 id=\"redis-%e9%8e%96%e9%98%bb%e5%a1%9e%ef%bc%9a%e7%b4%85%e9%8e%96%e7%b7%8a%e9%96%89-redis-%e7%9a%84%e9%98%bb%e5%a1%9e%e6%80%a7%e5%af%a6%e7%8f%be-fVDnJXxLWK\">REDIS \u9396\u963b\u585e\uff1a\u7d05\u9396\u7dca\u9589 Redis \u7684\u963b\u585e\u6027\u5be6\u73fe<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u53ef\u7528\u6027\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\u4fdd\u8b77\u5171\u4eab\u8cc7\u6e90\u3002\u5176\u4e2d\uff0c\u7d05\u9396\uff08Redlock\uff09\u662f\u4e00\u7a2e\u91dd\u5c0d Redis \u7684\u5206\u4f48\u5f0f\u9396\u5be6\u73fe\uff0c\u65e8\u5728\u89e3\u6c7a\u591a\u5be6\u4f8b\u74b0\u5883\u4e2d\u7684\u9396\u963b\u585e\u554f\u984c\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u7d05\u9396\u7684\u5de5\u4f5c\u539f\u7406\u53ca\u5176\u5728\u963b\u585e\u6027\u5be6\u73fe\u4e2d\u7684\u61c9\u7528\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%b4%85%e9%8e%96%ef%bc%9f-fVDnJXxLWK\">\u4ec0\u9ebc\u662f\u7d05\u9396\uff1f<\/h2>\n<p>\u7d05\u9396\u662f\u7531 Redis \u7684\u5275\u59cb\u4eba Antirez 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\u5be6\u4f8b\u8acb\u6c42\u9396\u3002\u901a\u5e38\uff0c\u5efa\u8b70\u81f3\u5c11\u4f7f\u7528\u4e94\u500b\u5be6\u4f8b\u4f86\u63d0\u9ad8\u9396\u7684\u53ef\u9760\u6027\u3002<\/li>\n<li><strong>\u8a2d\u7f6e\u9396\uff1a<\/strong>\u6bcf\u500b Redis \u5be6\u4f8b\u5728\u6210\u529f\u7372\u53d6\u9396\u5f8c\uff0c\u6703\u8a2d\u7f6e\u4e00\u500b\u5e36\u6709\u904e\u671f\u6642\u9593\u7684\u9375\u3002\u9019\u6a23\u53ef\u4ee5\u9632\u6b62\u56e0\u70ba\u5ba2\u6236\u7aef\u6545\u969c\u800c\u5c0e\u81f4\u9396\u7121\u6cd5\u91cb\u653e\u7684\u60c5\u6cc1\u3002<\/li>\n<li><strong>\u78ba\u8a8d\u9396\uff1a<\/strong>\u5ba2\u6236\u7aef\u9700\u8981\u78ba\u8a8d\u5728\u5927\u591a\u6578\uff08\u901a\u5e38\u662f\u4e09\u500b\uff09Redis 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id=\"%e7%b4%85%e9%8e%96%e7%9a%84%e9%98%bb%e5%a1%9e%e6%80%a7%e5%af%a6%e7%8f%be-fVDnJXxLWK\">\u7d05\u9396\u7684\u963b\u585e\u6027\u5be6\u73fe<\/h2>\n<p>\u7d05\u9396\u7684\u963b\u585e\u6027\u5be6\u73fe\u4e3b\u8981\u9ad4\u73fe\u5728\u4ee5\u4e0b\u5e7e\u500b\u65b9\u9762\uff1a<\/p>\n<ul>\n<li><strong>\u9632\u6b62\u6b7b\u9396\uff1a<\/strong>\u7d05\u9396\u7684\u8a2d\u8a08\u8003\u616e\u5230\u4e86\u6b7b\u9396\u7684\u60c5\u6cc1\u3002\u7531\u65bc\u6bcf\u500b\u9396\u90fd\u6709\u904e\u671f\u6642\u9593\uff0c\u5373\u4f7f\u5ba2\u6236\u7aef\u5728\u7372\u53d6\u9396\u5f8c\u5d29\u6f70\uff0c\u9396\u4e5f\u6703\u5728\u4e00\u5b9a\u6642\u9593\u5f8c\u81ea\u52d5\u91cb\u653e\u3002<\/li>\n<li><strong>\u9ad8\u53ef\u7528\u6027\uff1a<\/strong>\u901a\u904e\u4f7f\u7528\u591a\u500b Redis \u5be6\u4f8b\uff0c\u7d05\u9396\u80fd\u5920\u5728\u67d0\u4e9b\u5be6\u4f8b\u5931\u6548\u7684\u60c5\u6cc1\u4e0b\u4ecd\u7136\u4fdd\u6301\u9396\u7684\u53ef\u7528\u6027\u3002\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002<\/li>\n<li><strong>\u6027\u80fd\u512a\u5316\uff1a<\/strong>\u7d05\u9396\u7684\u8a2d\u8a08\u4f7f\u5f97\u9396\u7684\u7372\u53d6\u548c\u91cb\u653e\u64cd\u4f5c\u975e\u5e38\u5feb\u901f\uff0c\u9019\u5c0d\u65bc\u9ad8\u4f75\u767c\u7684\u61c9\u7528\u5834\u666f\u5c24\u70ba\u91cd\u8981\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b4%85%e9%8e%96%e7%9a%84%e4%bd%bf%e7%94%a8%e7%a4%ba%e4%be%8b-fVDnJXxLWK\">\u7d05\u9396\u7684\u4f7f\u7528\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528\u7d05\u9396\u7684\u7c21\u55ae\u793a\u4f8b\uff1a<\/p>\n<pre><code>function acquireLock($key, $value, $expire) {\n    $success = false;\n    $instances = getRedisInstances(); \/\/ \u7372\u53d6 Redis \u5be6\u4f8b\n    $lockCount = 0;\n\n    foreach ($instances as $instance) {\n        if ($instance-&gt;set($key, $value, ['nx', 'ex' =&gt; $expire])) {\n            $lockCount++;\n        }\n    }\n\n    if ($lockCount &gt;= 3) { \/\/ \u81f3\u5c11\u4e09\u500b\u5be6\u4f8b\u6210\u529f\u7372\u53d6\u9396\n        $success = true;\n    } else {\n        releaseLock($key, $value); \/\/ \u91cb\u653e\u5df2\u7372\u53d6\u7684\u9396\n    }\n\n    return $success;\n}\n\nfunction releaseLock($key, $value) {\n    $instances = getRedisInstances();\n    foreach ($instances as $instance) {\n        $instance-&gt;del($key);\n    }\n}\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-fVDnJXxLWK\">\u7d50\u8ad6<\/h2>\n<p>\u7d05\u9396\u4f5c\u70ba\u4e00\u7a2e\u6709\u6548\u7684\u5206\u4f48\u5f0f\u9396\u5be6\u73fe\uff0c\u70ba\u89e3\u6c7a Redis \u7684\u963b\u585e\u6027\u554f\u984c\u63d0\u4f9b\u4e86\u4e00\u7a2e\u53ef\u9760\u7684\u65b9\u6848\u3002\u901a\u904e\u5408\u7406\u7684\u8a2d\u8a08\u548c\u5be6\u73fe\uff0c\u7d05\u9396\u80fd\u5920\u5728\u591a\u5be6\u4f8b\u74b0\u5883\u4e2d\u4fdd\u8b49\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u7cfb\u7d71\u7684\u9ad8\u53ef\u7528\u6027\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u4f75\u767c\u548c\u5206\u4f48\u5f0f\u67b6\u69cb\u7684\u61c9\u7528\u4f86\u8aaa\uff0c\u7d05\u9396\u7121\u7591\u662f\u4e00\u500b\u503c\u5f97\u8003\u616e\u7684\u9078\u64c7\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u670d\u52d9\u6709\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22 REDIS 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