{"id":201416,"date":"2025-05-10T10:49:41","date_gmt":"2025-05-10T02:49:41","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201416\/"},"modified":"2025-05-10T10:49:41","modified_gmt":"2025-05-10T02:49:41","slug":"redis%e4%bd%9c%e8%80%85%e5%92%8c%e5%88%86%e5%b8%83%e5%bc%8f%e5%a4%a7%e4%bd%ac%e6%89%93%e6%9e%b6%ef%bc%8c%e8%b0%81%e8%b5%a2%e4%ba%86%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201416\/","title":{"rendered":"Redis\u4f5c\u8005\u548c\u5206\u5e03\u5f0f\u5927\u4f6c\u6253\u67b6\uff0c\u8c01\u8d62\u4e86\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>Redis\u4f5c\u8005\u548c\u5206\u5e03\u5f0f\u5927\u4f6c\u6253\u67b6\uff0c\u8c01\u8d62\u4e86\uff1f<\/h1>\n<p><span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u672c\u7bc7\u6587\u7ae0\u4e3b\u8981\u662f\u7ed3\u5408\u6211\u4e4b\u524d\u9762\u8bd5\u7684\u5404\u79cd\u7ecf\u5386\u548c\u5b9e\u6218\u5f00\u53d1\u4e2d\u9047\u5230\u7684\u95ee\u9898\u89e3\u51b3\u7ecf\u9a8c\u6574\u7406\u7684\uff0c\u5e0c\u671b\u8fd9\u7bc7\u300aRedis\u4f5c\u8005\u548c\u5206\u5e03\u5f0f\u5927\u4f6c\u6253\u67b6\uff0c\u8c01\u8d62\u4e86\uff1f\u300b\u5bf9\u4f60\u6709\u5f88\u5927\u5e2e\u52a9\uff01\u6b22\u8fce\u6536\u85cf\uff0c\u5206\u4eab\u7ed9\u66f4\u591a\u7684\u9700\u8981\u7684\u670b\u53cb\u5b66\u4e60~<\/p>\n<\/p>\n<h2>\u80cc\u666f\u94fa\u57ab<\/h2>\n<p>\u9762\u8bd5\u7684\u65f6\u5019\uff0c\u4e0d\u7ba1\u4f60\u7684\u7b80\u5386\u5199\u6ca1\u5199 Redis\uff0c\u5b83\u57fa\u672c\u4e0a\u662f\u4e00\u4e2a\u7ed5\u4e0d\u8fc7\u7684\u8bdd\u9898\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366520263c21ab2c8fc7.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u4e3a\u4e86\u5f15\u51fa\u672c\u6587\u8981\u8ba8\u8bba\u7684\u5173\u4e8e Redlock \u7684\u795e\u4ed9\u6253\u67b6\u7684\u95ee\u9898\uff0c\u6211\u4eec\u5c31\u5f97\u5148\u901a\u8fc7\u4e00\u4e2a\u9762\u8bd5\u8fde\u73af\u70ae\uff1a<\/p>\n<p>1.Redis \u505a\u5206\u5e03\u5f0f\u9501\u7684\u65f6\u5019\u6709\u9700\u8981\u6ce8\u610f\u7684\u95ee\u9898\uff1f<\/p>\n<p>2.\u5982\u679c\u662f Redis \u662f\u5355\u70b9\u90e8\u7f72\u7684\uff0c\u4f1a\u5e26\u6765\u4ec0\u4e48\u95ee\u9898\uff1f<\/p>\n<p>3.\u90a3\u4f60\u51c6\u5907\u600e\u4e48\u89e3\u51b3\u5355\u70b9\u95ee\u9898\u5462\uff1f<\/p>\n<p>4.\u96c6\u7fa4\u6a21\u5f0f\u4e0b\uff0c\u6bd4\u5982\u4e3b\u4ece\u6a21\u5f0f\uff0c\u6709\u6ca1\u6709\u4ec0\u4e48\u95ee\u9898\u5462\uff1f<\/p>\n<p>5.\u4f60\u77e5\u9053 Redis \u662f\u600e\u4e48\u89e3\u51b3\u96c6\u7fa4\u6a21\u5f0f\u4e5f\u4e0d\u9760\u8c31\u7684\u95ee\u9898\u7684\u5417\uff1f<\/p>\n<p>6.\u90a3\u4f60\u7b80\u5355\u7684\u4ecb\u7ecd\u4e00\u4e0b Redlock \u5427\uff1f<\/p>\n<p>7.\u4f60\u89c9\u5f97 Redlock \u6709\u4ec0\u4e48\u95ee\u9898\u5462\uff1f<\/p>\n<p>\u5f88\u660e\u663e\uff0c\u4e0a\u9762\u662f\u4e00\u4e2a\u5e38\u89c4\u7684\u9762\u8bd5\u8fde\u73af\u5957\u8def\u9898\u3002\u4e2d\u95f4\u8fd8\u53ef\u4ee5\u63d2\u5165\u5f88\u591a\u5176\u4ed6\u7684 Redis \u7684\u8003\u5bdf\u70b9\uff0c\u6211\u8fd9\u91cc\u5c31\u4e0d\u505a\u6269\u5c55\u4e86\u3002<\/p>\n<p>\u5355\u70b9\u7684 Redis \u505a\u5206\u5e03\u5f0f\u9501\u4e0d\u9760\u8c31\uff0c\u5bfc\u81f4\u4e86\u57fa\u4e8e Redis \u96c6\u7fa4\u6a21\u5f0f\u7684\u5206\u5e03\u5f0f\u9501\u89e3\u51b3\u65b9\u6848\u7684\u51fa\u73b0\u3002<\/p>\n<p>\u57fa\u4e8e Redis \u96c6\u7fa4\u6a21\u5f0f\u7684\u5206\u5e03\u5f0f\u9501\u89e3\u51b3\u65b9\u6848\u8fd8\u662f\u4e0d\u9760\u8c31\uff0cRedis \u7684\u4f5c\u8005\u63d0\u51fa\u4e86 Redlock \u7684\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n<p>Redis \u4f5c\u8005\u63d0\u51fa\u7684 Redlock \u7684\u89e3\u51b3\u65b9\u6848\uff0c\u53e6\u4e00\u4f4d\u5206\u5e03\u5f0f\u7cfb\u7edf\u7684\u5927\u795e\u89c9\u5f97\u5b83\u4e0d\u9760\u8c31\uff0c\u4e8e\u662f\u4ed6\u4eec\u4e4b\u95f4\u5f00\u59cb\u4e86 battle\u3002<\/p>\n<p>\u57fa\u4e8e\u8fd9\u573a battle\uff0c\u53c8\u5f15\u53d1\u4e86\u66f4\u591a\u7684\u8ba8\u8bba\u3002<\/p>\n<p><strong>\u8fd9\u573a battle \u96be\u5206\u4f2f\u4ef2\uff0c\u6ca1\u6709\u6700\u540e\u7684\u8d62\u5bb6\u3002\u5982\u679c\u4e00\u5b9a\u8981\u9009\u51fa\u8c01\u662f\u6700\u5927\u7684\u8d62\u5bb6\u7684\u8bdd\uff0c\u90a3\u4e00\u5b9a\u662f\u5403\u74dc\u7f51\u53cb<\/strong>\u3002\u56e0\u4e3a\u5bf9\u4e8e\u5403\u74dc\u7f51\u53cb\u6765\u8bf4\uff08\u6bd4\u5982\u6211\uff09\uff0c\u53ef\u4ee5\u4ece\u4e24\u4f4d\u5927\u795e\u7684\u4ea4\u950b\u4e2d\u5b66\u4e60\u5230\u5f88\u591a\u4e1c\u897f\u3002<\/p>\n<p>\u8ba9\u4f60\u6df1\u523b\u7684\u4f53\u4f1a\u5230\uff1a<strong>\u770b\u8d77\u6765\u90a3\u4e48\u65e0\u61c8\u53ef\u51fb\u7684\u60f3\u6cd5\uff0c\u7ec6\u7ec6\u63a8\u6572\u4e4b\u4e0b\uff0c\u5e76\u4e0d\u662f\u90a3\u4e48\u5929\u8863\u65e0\u7f1d\u3002<\/strong><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366520363c21ab3626df.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u6240\u4ee5\u672c\u6587\u5c31\u6309\u7167\u4e0b\u9762\u7684\u4e94\u4e2a\u6a21\u5757\u5c55\u5f00\u8bb2\u8ff0\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366520363c21ab3dd3ec.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u5148\u6765\u4e00\u6ce2\u529d\u9000\uff1a<strong>\u672c\u6587\u8fd11.2w\u5b57\uff0c\u8c28\u614e\u89c2\u770b\u3002\u770b\u4e0d\u4e0b\u53bb\u4e0d\u8981\u7d27\uff0c\u70b9\u4e2a\u8d5e\u5c31\u662f\u5bf9\u4e8e\u6211\u6700\u5927\u7684\u9f13\u52b1\u3002\u5965\u5229\u7ed9\uff01<\/strong><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366520463c21ab46c24d.jpg\" class=\"aligncenter\"> <\/p>\n<h2>\u5355\u70b9Redis<\/h2>\n<p>\u6309\u7167\u6211\u7684\u7ecf\u9a8c\uff0c\u5f53\u9762\u8bd5\u804a\u5230 Redis \u7684\u65f6\u5019\uff0c\u767e\u5206\u4e4b 90 \u7684\u670b\u53cb\u90fd\u4f1a\u8bf4**\uff1aRedis\u5728\u6211\u4eec\u7684\u9879\u76ee\u4e2d\u662f\u7528\u6765\u505a\u70ed\u70b9\u6570\u636e\u7f13\u5b58\u7684**\u3002<\/p>\n<p>\u7136\u540e\u767e\u5206\u4e4b\u767e\u7684\u9762\u8bd5\u5b98\u90fd\u4f1a\u95ee\uff1a<\/p>\n<p>Redis\u9664\u4e86\u62ff\u6765\u505a\u7f13\u5b58\uff0c\u4f60\u8fd8\u89c1\u8fc7\u57fa\u4e8eRedis\u7684\u4ec0\u4e48\u7528\u6cd5\uff1f<\/p>\n<p>\u63a5\u4e0b\u6765\u767e\u5206\u4e4b 80 \u7684\u670b\u53cb\u90fd\u4f1a\u8bf4\u5230\uff1a\u6211\u4eec\u8fd8\u7528 Redis \u505a\u8fc7\u5206\u5e03\u5f0f\u9501\u3002<\/p>\n<p>\uff08\u5f53\u7136\uff0c Redis \u9664\u4e86\u7f13\u5b58\u3001\u5206\u5e03\u5f0f\u9501\u4e4b\u5916\u8fd8\u6709\u975e\u5e38\u975e\u5e38\u591a\u7684\u5947\u6280\u6deb\u5de7\uff0c\u4e0d\u662f\u672c\u6587\u91cd\u70b9\uff0c\u5927\u5bb6\u6709\u5174\u8da3\u7684\u53ef\u4ee5\u81ea\u5df1\u53bb\u4e86\u89e3\u4e00\u4e0b\u3002\uff09<\/p>\n<p>\u90a3\u4e48\u9762\u8bd5\u5b98\u5c31\u4f1a\u63a5\u7740\u8bf4\uff1a<\/p>\n<p>\u90a3\u4f60\u7ed9\u6211\u63cf\u8ff0\uff08\u6216\u8005\u5199\u4e00\u4e0b\u4f2a\u4ee3\u7801\uff09\u57fa\u4e8eRedis\u7684\u52a0\u9501\u548c\u91ca\u653e\u9501\u7684\u7ec6\u8282\u5427\u3002<\/p>\n<p>\u6ce8\u610f\u9762\u8bd5\u5b98\u8fd9\u91cc\u8bf4\u7684\u662f<strong>\u52a0\u9501\u548c\u91ca\u653e\u9501\u7684\u7ec6\u8282\uff0c\u9b54\u9b3c\u90fd\u5728\u7ec6\u8282\u91cc\u3002<\/strong><\/p>\n<p>\u95ee\u8fd9\u4e2a\u95ee\u9898\u9762\u8bd5\u5b98\u65e0\u975e\u662f\u60f3\u8981\u542c\u5230\u4e0b\u9762\u51e0\u4e2a\u5173\u952e\u70b9\uff1a<\/p>\n<p><strong>\u5173\u952e\u70b9\u4e00\uff1a\u539f\u5b50\u547d\u4ee4\u52a0\u9501<\/strong>\u3002\u56e0\u4e3a\u6709\u7684\u201c\u5e74\u4e45\u5931\u4fee\u201d\u7684\u6587\u7ae0\u4e2d\u5bf9\u4e8e Redis \u7684\u52a0\u9501\u64cd\u4f5c\u662f\u5148set key\uff0c\u518d\u8bbe\u7f6e key \u7684\u8fc7\u671f\u65f6\u95f4\u3002\u8fd9\u6837\u5199\u7684\u6839\u672c\u539f\u56e0\u662f\u5728\u65e9\u671f\u7684 Redis \u7248\u672c\u4e2d\u5e76\u4e0d\u652f\u6301\u539f\u5b50\u547d\u4ee4\u52a0\u9501\u7684\u64cd\u4f5c\u3002\u4e0d\u662f\u539f\u5b50\u64cd\u4f5c\u4f1a\u5e26\u6765\u4ec0\u4e48\u95ee\u9898\uff0c\u5c31\u4e0d\u7528\u6211\u8bf4\u4e86\u5427\uff1f\u5982\u679c\u4f60\u4e0d\u77e5\u9053\uff0c\u4f60\u5148\u56de\u53bb\u7b49\u901a\u77e5\u5427\u3002<\/p>\n<p>\u800c\u5728 2.6.12 \u7248\u672c\u540e\uff0c\u53ef\u4ee5\u901a\u8fc7\u5411 Redis \u53d1\u9001\u4e0b\u9762\u7684\u547d\u4ee4\uff0c\u5b9e\u73b0\u539f\u5b50\u6027\u7684\u52a0\u9501\u64cd\u4f5c\uff1a<\/p>\n<p>SET key random_value NX PX 30000<\/p>\n<p><strong>\u5173\u952e\u70b9\u4e8c\uff1a\u8bbe\u7f6e\u503c\u7684\u65f6\u5019\uff0c\u653e\u7684\u662frandom_value<\/strong>\u3002\u800c\u4e0d\u662f\u4f60\u968f\u4fbf\u6254\u4e2a\u201cOK\u201d\u8fdb\u53bb\u3002<\/p>\n<p>\u5148\u89e3\u91ca\u4e00\u4e0b\u4e0a\u9762\u7684\u547d\u4ee4\u4e2d\u7684\u51e0\u4e2a\u53c2\u6570\u7684\u542b\u4e49\uff1a<\/p>\n<p>random_value\uff1a\u662f\u7531\u5ba2\u6237\u7aef\u751f\u6210\u7684\u4e00\u4e2a\u968f\u673a\u5b57\u7b26\u4e32\uff0c\u5b83\u8981\u4fdd\u8bc1\u5728\u8db3\u591f\u957f\u7684\u4e00\u6bb5\u65f6\u95f4\u5185\u5728\u6240\u6709\u5ba2\u6237\u7aef\u7684\u6240\u6709\u83b7\u53d6\u9501\u7684\u8bf7\u6c42\u4e2d\u90fd\u662f\u552f\u4e00\u7684\u3002<\/p>\n<p>NX\uff1a\u8868\u793a\u53ea\u6709\u5f53\u8981\u8bbe\u7f6e\u7684 key \u503c\u4e0d\u5b58\u5728\u7684\u65f6\u5019\u624d\u80fd set \u6210\u529f\u3002\u8fd9\u4fdd\u8bc1\u4e86\u53ea\u6709\u7b2c\u4e00\u4e2a\u8bf7\u6c42\u7684\u5ba2\u6237\u7aef\u624d\u80fd\u83b7\u5f97\u9501\uff0c\u800c\u5176\u5b83\u5ba2\u6237\u7aef\u5728\u9501\u88ab\u91ca\u653e\u4e4b\u524d\u90fd\u65e0\u6cd5\u83b7\u5f97\u9501\u3002<\/p>\n<p>PX 30000\uff1a\u8868\u793a\u8fd9\u4e2a\u9501\u6709\u4e00\u4e2a 30 \u79d2\u7684\u81ea\u52a8\u8fc7\u671f\u65f6\u95f4\u3002\u5f53\u7136\uff0c\u8fd9\u91cc 30 \u79d2\u53ea\u662f\u4e00\u4e2a\u4f8b\u5b50\uff0c\u5ba2\u6237\u7aef\u53ef\u4ee5\u9009\u62e9\u5408\u9002\u7684\u8fc7\u671f\u65f6\u95f4\u3002<\/p>\n<p>\u518d\u89e3\u91ca\u4e00\u4e0b\u4e3a\u4ec0\u4e48 value \u9700\u8981\u8bbe\u7f6e\u4e3a\u4e00\u4e2a\u968f\u673a\u5b57\u7b26\u4e32\u3002\u8fd9\u4e5f\u662f\u7b2c\u4e09\u4e2a\u5173\u952e\u70b9\u3002<\/p>\n<p><strong>\u5173\u952e\u70b9\u4e09\uff1avalue \u7684\u503c\u8bbe\u7f6e\u4e3a\u968f\u673a\u6570\u4e3b\u8981\u662f\u4e3a\u4e86\u66f4\u5b89\u5168\u7684\u91ca\u653e\u9501<\/strong>\uff0c\u91ca\u653e\u9501\u7684\u65f6\u5019\u9700\u8981\u68c0\u67e5 key \u662f\u5426\u5b58\u5728\uff0c\u4e14 key \u5bf9\u5e94\u7684\u503c\u662f\u5426\u548c\u6211\u6307\u5b9a\u7684\u503c\u4e00\u6837\uff0c\u662f\u4e00\u6837\u7684\u624d\u80fd\u91ca\u653e\u9501\u3002\u6240\u4ee5\u53ef\u4ee5\u770b\u5230\u8fd9\u91cc\u6709\u83b7\u53d6\u3001\u5224\u65ad\u3001\u5220\u9664\u4e09\u4e2a\u64cd\u4f5c\uff0c\u4e3a\u4e86\u4fdd\u969c\u539f\u5b50\u6027\uff0c\u6211\u4eec\u9700\u8981\u7528 lua \u811a\u672c\u3002<\/p>\n<p>\uff08\u57fa\u672c\u4e0a\u80fd\u7b54\u5230\u8fd9\u51e0\u4e2a\u5173\u952e\u70b9\uff0c\u9762\u8bd5\u5b98\u4e5f\u5c31\u4f1a\u8fdb\u5165\u4e0b\u4e00\u4e2a\u95ee\u9898\u4e86\u3002\u5e38\u89c4\u70ed\u8eab\u9001\u5206\u9898\u5440\uff0c\u670b\u53cb\u4eec\uff0c\u5f97\u8bb0\u4f4f\u4e86\u3002\uff09<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366520463c21ab4c685e.jpg\" class=\"aligncenter\"> <\/p>\n<h2>\u96c6\u7fa4\u6a21\u5f0f<\/h2>\n<p>\u9762\u8bd5\u5b98\u5c31\u4f1a\u63a5\u7740\u95ee\u4e86\uff1a<\/p>\n<p>\u7ecf\u8fc7\u521a\u521a\u7684\u8ba8\u8bba\uff0c\u6211\u4eec\u5df2\u7ecf\u6709\u8f83\u597d\u7684\u65b9\u6cd5\u83b7\u53d6\u9501\u548c\u91ca\u653e\u9501\u3002\u57fa\u4e8eRedis\u5355\u5b9e\u4f8b\uff0c\u5047\u8bbe\u8fd9\u4e2a\u5355\u5b9e\u4f8b\u603b\u662f\u53ef\u7528\uff0c\u8fd9\u79cd\u65b9\u6cd5\u5df2\u7ecf\u8db3\u591f\u5b89\u5168\u3002\u5982\u679c\u8fd9\u4e2aRedis\u8282\u70b9\u6302\u6389\u4e86\u5462\uff1f<\/p>\n<p>\u5230\u8fd9\u4e2a\u95ee\u9898\u5176\u5b9e\u53ef\u4ee5\u76f4\u63a5\u804a\u5230 Redlock \u4e86\u3002\u4f46\u662f\u4f60\u522b\u614c\u554a\uff0c\u4e3a\u4e86\u5c55\u793a\u4f60\u4e30\u5bcc\u7684\u77e5\u8bc6\u50a8\u5907\uff08\u75af\u72c2\u7684\u5237\u9898\u51c6\u5907\uff09\uff0c\u4f60\u5f97\u5148\u81ea\u5df1\u804a\u4e00\u804a Redis \u7684\u96c6\u7fa4\uff0c\u4f60\u53ef\u4ee5\u8fd9\u6837\u53bb\u8bf4\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366520563c21ab52c6b9.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u4e3a\u4e86\u907f\u514d\u8282\u70b9\u6302\u6389\u5bfc\u81f4\u7684\u95ee\u9898\uff0c\u6211\u4eec\u53ef\u4ee5\u91c7\u7528Redis\u96c6\u7fa4\u7684\u65b9\u6cd5\u6765\u5b9e\u73b0Redis\u7684\u9ad8\u53ef\u7528\u3002<\/p>\n<p><strong>Redis\u96c6\u7fa4\u65b9\u5f0f\u5171\u6709\u4e09\u79cd\uff1a\u4e3b\u4ece\u6a21\u5f0f\uff0c\u54e8\u5175\u6a21\u5f0f\uff0ccluster(\u96c6\u7fa4)\u6a21\u5f0f<\/strong><\/p>\n<p>\u5176\u4e2d\u4e3b\u4ece\u6a21\u5f0f\u4f1a\u4fdd\u8bc1\u6570\u636e\u5728\u4ece\u8282\u70b9\u8fd8\u6709\u4e00\u4efd\uff0c\u4f46\u662f\u4e3b\u8282\u70b9\u6302\u4e86\u4e4b\u540e\uff0c\u9700\u8981\u624b\u52a8\u628a\u4ece\u8282\u70b9\u5207\u6362\u4e3a\u4e3b\u8282\u70b9\u3002\u5b83\u975e\u5e38\u7b80\u5355\uff0c\u4f46\u662f\u5728\u5b9e\u9645\u7684\u751f\u4ea7\u73af\u5883\u4e2d\u662f\u5f88\u5c11\u4f7f\u7528\u7684\u3002<\/p>\n<p>\u54e8\u5175\u6a21\u5f0f\u5c31\u662f\u4e3b\u4ece\u6a21\u5f0f\u7684\u5347\u7ea7\u7248\uff0c\u8be5\u6a21\u5f0f\u4e0b\u4f1a\u5bf9\u54cd\u5e94\u5f02\u5e38\u7684\u4e3b\u8282\u70b9\u8fdb\u884c\u4e3b\u89c2\u4e0b\u7ebf\u6216\u8005\u5ba2\u89c2\u4e0b\u7ebf\u7684\u64cd\u4f5c\uff0c\u5e76\u8fdb\u884c\u4e3b\u4ece\u5207\u6362\u3002\u5b83\u53ef\u4ee5\u4fdd\u8bc1\u9ad8\u53ef\u7528\u3002<\/p>\n<p>cluster (\u96c6\u7fa4)\u6a21\u5f0f\u4fdd\u8bc1\u7684\u662f\u9ad8\u5e76\u53d1\uff0c\u6574\u4e2a\u96c6\u7fa4\u5206\u62c5\u6240\u6709\u6570\u636e\uff0c\u4e0d\u540c\u7684 key \u4f1a\u653e\u5230\u4e0d\u540c\u7684 Redis \u4e2d\u3002\u6bcf\u4e2a Redis \u5bf9\u5e94\u4e00\u90e8\u5206\u7684\u69fd\u3002<\/p>\n<p>\uff08\u4e0a\u9762\u4e09\u79cd\u6a21\u5f0f\u4e5f\u662f\u9762\u8bd5\u91cd\u70b9\uff0c\u53ef\u4ee5\u8bf4\u5f88\u591a\u9053\u9053\u51fa\u6765\uff0c\u7531\u4e8e\u4e0d\u662f\u672c\u6587\u91cd\u70b9\u5c31\u4e0d\u8be6\u7ec6\u63cf\u8ff0\u4e86\u3002\u4e3b\u8981\u8868\u8fbe\u7684\u610f\u601d\u662f\u4f60\u5f97\u5728\u9762\u8bd5\u7684\u65f6\u5019\u9047\u5230\u76f8\u5173\u95ee\u9898\uff0c\u9700\u8981\u5c55\u793a\u81ea\u5df1\u662f\u77e5\u9053\u8fd9\u4e9b\u4e1c\u897f\u7684\uff0c\u90fd\u662f\u9762\u8bd5\u7684\u5957\u8def\u3002\uff09<\/p>\n<p>\u5728\u4e0a\u9762\u63cf\u8ff0\u7684\u96c6\u7fa4\u6a21\u5f0f\u4e0b\u8fd8\u662f\u4f1a\u51fa\u73b0\u4e00\u4e2a\u95ee\u9898\uff0c\u7531\u4e8e\u8282\u70b9\u4e4b\u95f4\u662f\u91c7\u7528\u5f02\u6b65\u901a\u4fe1\u7684\u65b9\u5f0f\u3002\u5982\u679c\u521a\u521a\u5728 Master \u8282\u70b9\u4e0a\u52a0\u4e86\u9501\uff0c\u4f46\u662f\u6570\u636e\u8fd8\u6ca1\u88ab\u540c\u6b65\u5230 Salve\u3002\u8fd9\u65f6 Master \u8282\u70b9\u6302\u4e86\uff0c\u5b83\u4e0a\u9762\u7684\u9501\u5c31\u6ca1\u4e86\uff0c\u7b49\u65b0\u7684 Master \u51fa\u6765\u540e\uff08\u4e3b\u4ece\u6a21\u5f0f\u7684\u624b\u52a8\u5207\u6362\u6216\u8005\u54e8\u5175\u6a21\u5f0f\u7684\u4e00\u6b21 failover \u7684\u8fc7\u7a0b\uff09\uff0c\u5c31\u53ef\u4ee5\u518d\u6b21\u83b7\u53d6\u540c\u6837\u7684\u9501\uff0c\u51fa\u73b0\u4e00\u628a\u9501\u88ab\u62ff\u5230\u4e86\u4e24\u6b21\u7684\u573a\u666f\u3002<\/p>\n<p>\u9501\u90fd\u88ab\u62ff\u4e86\u4e24\u6b21\u4e86\uff0c\u4e5f\u5c31\u4e0d\u6ee1\u8db3\u5b89\u5168\u6027\u4e86\u3002<strong>\u4e00\u4e2a\u5b89\u5168\u7684\u9501\uff0c\u4e0d\u7ba1\u662f\u4e0d\u662f\u5206\u5e03\u5f0f\u7684\uff0c\u5728\u4efb\u610f\u4e00\u4e2a\u65f6\u523b\uff0c\u90fd\u53ea\u6709\u4e00\u4e2a\u5ba2\u6237\u7aef\u6301\u6709\u3002<\/strong><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366520663c21ab67207f.jpg\" class=\"aligncenter\"> <\/p>\n<h2>Redlock\u7b80\u4ecb<\/h2>\n<p>\u4e3a\u4e86\u89e3\u51b3\u4e0a\u9762\u7684\u95ee\u9898\uff0cRedis \u7684\u4f5c\u8005\u63d0\u51fa\u4e86\u540d\u4e3a Redlock \u7684\u7b97\u6cd5\u3002<\/p>\n<p><strong>\u5728 Redis \u7684\u5206\u5e03\u5f0f\u73af\u5883\u4e2d\uff0c\u6211\u4eec\u5047\u8bbe\u6709 N \u4e2a Redis Master\u3002\u8fd9\u4e9b\u8282\u70b9\u5b8c\u5168\u4e92\u76f8\u72ec\u7acb\uff0c\u4e0d\u5b58\u5728\u4e3b\u4ece\u590d\u5236\u6216\u8005\u5176\u4ed6\u96c6\u7fa4\u534f\u8c03\u673a\u5236\u3002<\/strong><\/p>\n<p>\u524d\u9762\u5df2\u7ecf\u63cf\u8ff0\u4e86\u5728\u5355\u70b9 Redis \u4e0b\uff0c\u600e\u4e48\u5b89\u5168\u5730\u83b7\u53d6\u548c\u91ca\u653e\u9501\uff0c\u6211\u4eec\u786e\u4fdd\u5c06\u5728 N \u4e2a\u5b9e\u4f8b\u4e0a\u4f7f\u7528\u6b64\u65b9\u6cd5\u83b7\u53d6\u548c\u91ca\u653e\u9501\u3002<\/p>\n<p>\u5728\u4e0b\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u5047\u8bbe\u6709 5 \u4e2a\u5b8c\u5168\u72ec\u7acb\u7684 Redis Master \u8282\u70b9\uff0c\u4ed6\u4eec\u5206\u522b\u8fd0\u884c\u5728 5 \u53f0\u670d\u52a1\u5668\u4e2d\uff0c\u53ef\u4ee5\u4fdd\u8bc1\u4ed6\u4eec\u4e0d\u4f1a\u540c\u65f6\u5b95\u673a\u3002<\/p>\n<p>\u4ece\u5b98\u7f51\u4e0a\u6211\u4eec\u53ef\u4ee5\u77e5\u9053\uff0c\u4e00\u4e2a\u5ba2\u6237\u7aef\u5982\u679c\u8981\u83b7\u5f97\u9501\uff0c\u5fc5\u987b\u7ecf\u8fc7\u4e0b\u9762\u7684\u4e94\u4e2a\u6b65\u9aa4\uff1a<\/p>\n<p>\u6b65\u9aa4\u63cf\u8ff0\u6765\u6e90\uff1ahttp:\/\/redis.cn\/topics\/distlock.html<\/p>\n<p>1.\u83b7\u53d6\u5f53\u524d Unix \u65f6\u95f4\uff0c\u4ee5\u6beb\u79d2\u4e3a\u5355\u4f4d\u3002<\/p>\n<p>2.\u4f9d\u6b21\u5c1d\u8bd5\u4ece N \u4e2a\u5b9e\u4f8b\uff0c\u4f7f\u7528\u76f8\u540c\u7684 key \u548c\u968f\u673a\u503c\u83b7\u53d6\u9501\u3002\u5728\u6b65\u9aa4 2\uff0c\u5f53\u5411 Redis \u8bbe\u7f6e\u9501\u65f6\uff0c<strong>\u5ba2\u6237\u7aef\u5e94\u8be5\u8bbe\u7f6e\u4e00\u4e2a\u7f51\u7edc\u8fde\u63a5\u548c\u54cd\u5e94\u8d85\u65f6\u65f6\u95f4\uff0c\u8fd9\u4e2a\u8d85\u65f6\u65f6\u95f4\u5e94\u8be5\u5c0f\u4e8e\u9501\u7684\u5931\u6548\u65f6\u95f4<\/strong>\u3002\u4f8b\u5982\u4f60\u7684\u9501\u81ea\u52a8\u5931\u6548\u65f6\u95f4\u4e3a 10 \u79d2\uff0c\u5219\u8d85\u65f6\u65f6\u95f4\u5e94\u8be5\u5728 5-50 \u6beb\u79d2\u4e4b\u95f4\u3002\u8fd9\u6837\u53ef\u4ee5\u907f\u514d\u670d\u52a1\u5668\u7aef Redis \u5df2\u7ecf\u6302\u6389\u7684\u60c5\u51b5\u4e0b\uff0c\u5ba2\u6237\u7aef\u8fd8\u5728\u6b7b\u6b7b\u5730\u7b49\u5f85\u54cd\u5e94\u7ed3\u679c\u3002\u5982\u679c\u670d\u52a1\u5668\u7aef\u6ca1\u6709\u5728\u89c4\u5b9a\u65f6\u95f4\u5185\u54cd\u5e94\uff0c\u5ba2\u6237\u7aef\u5e94\u8be5\u5c3d\u5feb\u5c1d\u8bd5\u53e6\u5916\u4e00\u4e2a Redis \u5b9e\u4f8b\u3002<\/p>\n<p>3.\u5ba2\u6237\u7aef\u4f7f\u7528\u5f53\u524d\u65f6\u95f4\u51cf\u53bb\u5f00\u59cb\u83b7\u53d6\u9501\u65f6\u95f4\uff08\u6b65\u9aa4 1 \u8bb0\u5f55\u7684\u65f6\u95f4\uff09\u5c31\u5f97\u5230\u83b7\u53d6\u9501\u4f7f\u7528\u7684\u65f6\u95f4\u3002\u5f53\u4e14\u4ec5\u5f53\u4ece\u5927\u591a\u6570\uff08\u8fd9\u91cc\u662f 3 \u4e2a\u8282\u70b9\uff09\u7684 Redis \u8282\u70b9\u90fd\u53d6\u5230\u9501\uff0c\u5e76\u4e14\u4f7f\u7528\u7684\u65f6\u95f4\u5c0f\u4e8e\u9501\u5931\u6548\u65f6\u95f4\u65f6\uff0c\u9501\u624d\u7b97\u83b7\u53d6\u6210\u529f\u3002<\/p>\n<p>4.<strong>\u5982\u679c\u53d6\u5230\u4e86\u9501\uff0ckey \u7684\u771f\u6b63\u6709\u6548\u65f6\u95f4\u7b49\u4e8e\u6709\u6548\u65f6\u95f4\u51cf\u53bb\u83b7\u53d6\u9501\u6240\u4f7f\u7528\u7684\u65f6\u95f4\uff08\u6b65\u9aa4 3 \u8ba1\u7b97\u7684\u7ed3\u679c\uff09\u3002<\/strong><\/p>\n<p>5.\u5982\u679c\u56e0\u4e3a\u67d0\u4e9b\u539f\u56e0\uff0c\u83b7\u53d6\u9501\u5931\u8d25\uff08\u6ca1\u6709\u5728\u81f3\u5c11 N\/2+1 \u4e2aRedis\u5b9e\u4f8b\u53d6\u5230\u9501\u6216\u8005\u53d6\u9501\u65f6\u95f4\u5df2\u7ecf\u8d85\u8fc7\u4e86\u6709\u6548\u65f6\u95f4\uff09\uff0c<strong>\u5ba2\u6237\u7aef\u5e94\u8be5\u5728\u6240\u6709\u7684 Redis \u5b9e\u4f8b\u4e0a\u8fdb\u884c\u89e3\u9501<\/strong>\uff08\u5373\u4fbf\u67d0\u4e9b Redis \u5b9e\u4f8b\u6839\u672c\u5c31\u6ca1\u6709\u52a0\u9501\u6210\u529f\uff09\u3002<\/p>\n<p>\u901a\u8fc7\u4e0a\u9762\u7684\u6b65\u9aa4\u6211\u4eec\u53ef\u4ee5\u77e5\u9053\uff0c\u53ea\u8981\u5927\u591a\u6570\u7684\u8282\u70b9\u53ef\u4ee5\u6b63\u5e38\u5de5\u4f5c\uff0c\u5c31\u53ef\u4ee5\u4fdd\u8bc1 Redlock \u7684\u6b63\u5e38\u5de5\u4f5c\u3002\u8fd9\u6837\u5c31\u53ef\u4ee5\u89e3\u51b3\u524d\u9762\u5355\u70b9 Redis \u7684\u60c5\u51b5\u4e0b\u6211\u4eec\u8ba8\u8bba\u7684\u8282\u70b9\u6302\u6389\uff0c\u7531\u4e8e\u5f02\u6b65\u901a\u4fe1\uff0c\u5bfc\u81f4\u9501\u5931\u6548\u7684\u95ee\u9898\u3002<\/p>\n<p>\u4f46\u662f\uff0c\u8fd8\u662f\u4e0d\u80fd\u89e3\u51b3\u6545\u969c\u91cd\u542f\u540e\u5e26\u6765\u7684\u9501\u7684\u5b89\u5168\u6027\u7684\u95ee\u9898\u3002\u4f60\u60f3\u4e00\u4e0b\u4e0b\u9762\u8fd9\u4e2a\u573a\u666f\uff1a<\/p>\n<p>\u6211\u4eec\u4e00\u5171\u6709 A\u3001B\u3001C \u8fd9\u4e09\u4e2a\u8282\u70b9\u3002<\/p>\n<p>1.\u5ba2\u6237\u7aef 1 \u5728 A\uff0cB \u4e0a\u52a0\u9501\u6210\u529f\u3002C \u4e0a\u52a0\u9501\u5931\u8d25\u3002<\/p>\n<p>2.\u8fd9\u65f6\u8282\u70b9 B \u5d29\u6e83\u91cd\u542f\u4e86\uff0c\u4f46\u662f\u7531\u4e8e\u6301\u4e45\u5316\u7b56\u7565\u5bfc\u81f4\u5ba2\u6237\u7aef 1 \u5728 B \u4e0a\u7684\u9501\u6ca1\u6709\u6301\u4e45\u5316\u4e0b\u6765\u3002 \u5ba2\u6237\u7aef 2 \u53d1\u8d77\u7533\u8bf7\u540c\u4e00\u628a\u9501\u7684\u64cd\u4f5c\uff0c\u5728 B\uff0cC \u4e0a\u52a0\u9501\u6210\u529f\u3002<\/p>\n<p>3.\u8fd9\u4e2a\u65f6\u5019\u5c31\u53c8\u51fa\u73b0\u540c\u4e00\u628a\u9501\uff0c\u540c\u65f6\u88ab\u5ba2\u6237\u7aef 1 \u548c\u5ba2\u6237\u7aef 2 \u6240\u6301\u6709\u4e86\u3002<\/p>\n<p>\uff08\u63a5\u4e0b\u6765\u53c8\u5f97\u8bf4\u4e00\u8bf4Redis\u7684\u6301\u4e45\u5316\u7b56\u7565\u4e86\uff0c\u5168\u662f\u77e5\u8bc6\u70b9\u554a\uff0c\u670b\u53cb\u4eec\uff09<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366520663c21ab6c92de.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u6bd4\u5982\uff0cRedis \u7684 AOF \u6301\u4e45\u5316\u65b9\u5f0f\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u662f\u6bcf\u79d2\u5199\u4e00\u6b21\u78c1\u76d8\uff0c\u5373 fsync \u64cd\u4f5c\uff0c\u56e0\u6b64\u6700\u574f\u7684\u60c5\u51b5\u4e0b\u53ef\u80fd\u4e22\u5931 1 \u79d2\u7684\u6570\u636e\u3002<\/p>\n<p>\u5f53\u7136\uff0c\u4f60\u4e5f\u53ef\u4ee5\u8bbe\u7f6e\u6210\u6bcf\u6b21\u4fee\u6539\u6570\u636e\u90fd\u8fdb\u884c fsync \u64cd\u4f5c\uff08fsync=always\uff09\uff0c\u4f46\u8fd9\u4f1a\u4e25\u91cd\u964d\u4f4e Redis \u7684\u6027\u80fd\uff0c\u8fdd\u53cd\u4e86\u5b83\u7684\u8bbe\u8ba1\u7406\u5ff5\u3002\uff08\u6211\u4e5f\u6ca1\u89c1\u8fc7\u8fd9\u6837\u7528\u7684\uff0c\u53ef\u80fd\u8fd8\u662f\u89c1\u7684\u592a\u5c11\u4e86\u5427\u3002\uff09<\/p>\n<p>\u800c\u4e14\uff0c\u4f60\u4ee5\u4e3a\u6267\u884c\u4e86 fsync \u5c31\u4e0d\u4f1a\u4e22\u5931\u6570\u636e\u4e86\uff1f\u5929\u771f\uff0c\u771f\u5b9e\u7684\u7cfb\u7edf\u73af\u5883\u662f\u590d\u6742\u7684\uff0c\u8fd9\u90fd\u5df2\u7ecf\u8131\u79bb Redis \u7684\u8303\u7574\u4e86\u3002\u4e0a\u5347\u5230\u670d\u52a1\u5668\u3001\u7cfb\u7edf\u95ee\u9898\u4e86\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366520763c21ab7183fd.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u6240\u4ee5\uff0c\u6839\u636e\u58a8\u83f2\u5b9a\u5f8b\uff0c\u4e0a\u9762\u4e3e\u7684\u4f8b\u5b50\uff1a\u7531\u4e8e\u8282\u70b9\u91cd\u542f\u5f15\u53d1\u7684\u9501\u5931\u6548\u95ee\u9898\uff0c\u603b\u662f\u6709\u53ef\u80fd\u51fa\u73b0\u7684\u3002<\/p>\n<p>\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e00\u95ee\u9898\uff0c<strong>Redis \u7684\u4f5c\u8005\u53c8\u63d0\u51fa\u4e86\u5ef6\u8fdf\u91cd\u542f\uff08delayed restarts\uff09\u7684\u6982\u5ff5<\/strong>\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366520763c21ab75de77.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u610f\u601d\u5c31\u662f\u8bf4\uff0c\u4e00\u4e2a\u8282\u70b9\u5d29\u6e83\u540e\uff0c\u4e0d\u8981\u7acb\u5373\u91cd\u542f\u5b83\uff0c\u800c\u662f\u7b49\u5f85\u4e00\u5b9a\u7684\u65f6\u95f4\u540e\u518d\u91cd\u542f\u3002\u7b49\u5f85\u7684\u65f6\u95f4\u5e94\u8be5\u5927\u4e8e\u9501\u7684\u8fc7\u671f\u65f6\u95f4\uff08TTL\uff09\u3002\u8fd9\u6837\u505a\u7684\u76ee\u7684\u662f\u4fdd\u8bc1\u8fd9\u4e2a\u8282\u70b9\u5728\u91cd\u542f\u524d\u6240\u53c2\u4e0e\u7684\u9501\u90fd\u8fc7\u671f\u3002\u76f8\u5f53\u4e8e\u628a\u4ee5\u524d\u7684\u5e10\u52fe\u9500\u4e4b\u540e\u624d\u80fd\u53c2\u4e0e\u540e\u9762\u7684\u52a0\u9501\u64cd\u4f5c\u3002<\/p>\n<p>\u4f46\u662f\u6709\u4e2a\u95ee\u9898\u5c31\u662f\uff1a<strong>\u5728\u7b49\u5f85\u7684\u65f6\u95f4\u5185\uff0c\u8fd9\u4e2a\u8282\u70b9\u662f\u4e0d\u5bf9\u5916\u5de5\u4f5c\u7684\u3002\u90a3\u4e48\u5982\u679c\u5927\u591a\u6570\u8282\u70b9\u90fd\u6302\u4e86\uff0c\u8fdb\u5165\u4e86\u7b49\u5f85\u3002\u5c31\u4f1a\u5bfc\u81f4\u7cfb\u7edf\u7684\u4e0d\u53ef\u7528\uff0c\u56e0\u4e3a\u7cfb\u7edf\u5728TTL\u65f6\u95f4\u5185\u4efb\u4f55\u9501\u90fd\u5c06\u65e0\u6cd5\u52a0\u9501\u6210\u529f\u3002<\/strong><\/p>\n<p>Redlock \u7b97\u6cd5\u8fd8\u6709\u4e00\u4e2a\u9700\u8981\u6ce8\u610f\u7684\u70b9\u662f\u5b83\u7684\u91ca\u653e\u9501\u64cd\u4f5c\u3002<\/p>\n<p><strong>\u91ca\u653e\u9501\u7684\u65f6\u5019\u662f\u8981\u5411\u6240\u6709\u8282\u70b9\u53d1\u8d77\u91ca\u653e\u9501\u7684\u64cd\u4f5c\u7684<\/strong>\u3002\u8fd9\u6837\u505a\u7684\u76ee\u7684\u662f\u4e3a\u4e86\u89e3\u51b3\u6709\u53ef\u80fd\u5728\u52a0\u9501\u9636\u6bb5\uff0c\u8fd9\u4e2a\u8282\u70b9\u6536\u5230\u52a0\u9501\u8bf7\u6c42\u4e86\uff0c\u4e5fset\u6210\u529f\u4e86\uff0c\u4f46\u662f\u7531\u4e8e\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\u7684\u54cd\u5e94\u5305\u4e22\u4e86\uff0c\u5bfc\u81f4\u5ba2\u6237\u7aef\u4ee5\u4e3a\u6ca1\u6709\u52a0\u9501\u6210\u529f\u3002\u6240\u4ee5\uff0c\u91ca\u653e\u9501\u7684\u65f6\u5019\u8981\u5411\u6240\u6709\u8282\u70b9\u53d1\u8d77\u91ca\u653e\u9501\u7684\u64cd\u4f5c\u3002<\/p>\n<p>\u4f60\u53ef\u80fd\u89c9\u5f97\u8fd9\u4e0d\u662f\u5e38\u89c4\u64cd\u4f5c\u5417\uff1f<\/p>\n<p>\u6709\u7684\u7ec6\u8282\u5c31\u662f\u8fd9\u6837\uff0c\u8bf4\u51fa\u6765\u540e\u89c9\u5f97\u4e0d\u8fc7\u5982\u6b64\uff0c\u4f46\u662f\u6709\u53ef\u80fd\u81ea\u5df1\u5c31\u662f\u60f3\u4e0d\u5230\u8fd9\u4e2a\u70b9\uff0c\u5bfc\u81f4\u95ee\u9898\u7684\u51fa\u73b0\uff0c\u6240\u4ee5\u6211\u4eec\u624d\u4f1a\u8bf4\uff1a<strong>\u7ec6\u8282\uff0c\u9b54\u9b3c\u90fd\u5728\u7ec6\u8282\u91cc\u3002<\/strong><\/p>\n<p>\u597d\u4e86\uff0c\u7b80\u4ecb\u5927\u6982\u5c31\u8bf4\u5230\u8fd9\u91cc\uff0c\u6709\u5174\u8da3\u7684\u670b\u53cb\u53ef\u4ee5\u518d\u53bb\u770b\u770b\u5b98\u7f51\uff0c\u8865\u5145\u4e00\u4e0b\u3002<\/p>\n<p>\u4e2d\u6587\uff1ahttp:\/\/redis.cn\/topics\/distlock.html\u82f1\u6587\uff1ahttps:\/\/redis.io\/topics\/distlock<\/p>\n<p>\u597d\u4e86\uff0c\u7ecf\u8fc7\u8fd9\u4e48\u957f\uff0c\u8fd9\u4e48\u957f\u7684\u94fa\u57ab\uff0c\u6211\u4eec\u7ec8\u4e8e\u53ef\u4ee5\u8fdb\u5165\u5230\u795e\u4ed9\u6253\u67b6\u73af\u8282\u3002<\/p>\n<h2>\u795e\u4ed9\u6253\u67b6<\/h2>\n<p>\u795e\u4ed9\u4e00\uff1aRedis \u7684\u4f5c\u8005 antirez \u3002\u6709\u7684\u670b\u53cb\u5bf9\u82f1\u6587\u540d\u5b57\u4e0d\u592a\u654f\u611f\uff0c\u6240\u4ee5\u540e\u9762\u6211\u5c31\u53eb\u4ed6<strong>\u5377\u53d1\u54e5<\/strong>\u5427\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366520763c21ab7a3dbc.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u795e\u4ed9\u4e8c\uff1a\u5206\u5e03\u5f0f\u9886\u57df\u4e13\u5bb6 Martin Kleppmann\uff0c\u6211\u4eec\u53eb\u4ed6<strong>\u957f\u53d1\u54e5<\/strong>\u5427\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366520763c21ab7e57ce.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u770b\u5b8c\u4e0a\u9762\u4e24\u4f4d\u795e\u4ed9\u7684\u7167\u7247\uff0c\u518d\u770b\u770b\u6211\u4e3a\u4e86\u5199\u8fd9\u7bc7\u6587\u7ae0\u53c8\u65e5\u6e10\u7a00\u5c11\u7684\u5934\u53d1\uff0c\u6211\u5fcd\u4e0d\u4f4f\u54ed\u51fa\u58f0\u6765\u3002\u53ef\u80fd\u53ea\u6709\u7ed9\u6211\u70b9\u8d5e\uff0c\u624d\u80fd\u5e73\u590d\u6211\u7684\u5fc3\u60c5\u5427\u3002<\/p>\n<p>\u5377\u53d1\u54e5\u5728\u5b98\u7f51\u4ecb\u7ecd Redlock \u9875\u9762\u7684\u6700\u540e\u5199\u5230\uff1a\u5982\u679c\u4f60\u4e5f\u662f\u4f7f\u7528\u5206\u5e03\u5f0f\u7cfb\u7edf\u7684\u4eba\u5458\uff0c\u4f60\u7684\u89c2\u70b9\u548c\u610f\u89c1\u975e\u5e38\u91cd\u8981\uff0c\u6b22\u8fce\u548c\u6211\u4eec\u8ba8\u8bba\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366520863c21ab82dc80.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u4e8e\u662f\uff0c\u201c\u6c42\u9524\u5f97\u9524\u201d\uff01\u8fd9\u4e00\u9524\uff0c\u9524\u51fa\u4e86\u4f17\u591a\u7684\u5403\u74dc\u7f51\u53cb\uff0c\u5176\u4e2d\u4e0d\u4e4f\u5728\u76f8\u5173\u9886\u57df\u7684\u4e13\u4e1a\u4eba\u58eb\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366520863c21ab89c9ab.jpg\" class=\"aligncenter\"> <\/p>\n<h2>\u957f\u53d1\u54e5\u51fa\u9524<\/h2>\n<p>\u6545\u4e8b\u5f97\u4ece 2016\u5e742\u67088\u53f7 \u957f\u53d1\u54e5\u53d1\u5e03\u7684\u4e00\u7bc7\u6587\u7ae0\u300aHow to do distributed locking\u300b\u8bf4\u8d77\uff1a<\/p>\n<p>\u6587\u7ae0\u5730\u5740\uff1ahttp:\/\/martin.kleppmann.com\/2016\/02\/08\/how-to-do-distributed-locking.html<\/p>\n<p>\u8fd9\u4e00\u90e8\u5206\u76f4\u63a5\u7ffb\u8bd1\u8fc7\u6765\u5c31\u662f\uff1a<\/p>\n<p>\u4f5c\u4e3a\u672c\u4e66\uff08\u300a\u6570\u636e\u5bc6\u96c6\u578b\u5e94\u7528\u7cfb\u7edf\u8bbe\u8ba1\u300b\uff09\u7814\u7a76\u7684\u4e00\u90e8\u5206\uff0c\u6211\u5728Redis\u7f51\u7ad9\u4e0a \u770b\u5230\u4e86\u4e00\u79cd\u79f0\u4e3aRedlock\u7684\u7b97\u6cd5\u3002\u8be5\u7b97\u6cd5\u58f0\u79f0\u5728Redis\u5b9e\u73b0\u5bb9\u9519\u7684\u5206\u5e03\u5f0f\u9501\uff08\u6216\u66f4\u786e\u5207\u5730\u8bf4\uff0c \u79df\u7ea6\uff09\uff0c\u5e76\u4e14\u8be5\u9875\u9762\u8981\u6c42\u6765\u81ea\u5206\u5e03\u5f0f\u7cfb\u7edf\u4eba\u5458\u7684\u53cd\u9988\u3002\u8fd9\u4e2a\u7b97\u6cd5\u8ba9\u6211\u4ea7\u751f\u4e86\u4e00\u4e9b\u601d\u8003\uff0c\u56e0\u6b64\u6211\u82b1\u4e86\u4e00\u4e9b\u65f6\u95f4\u5199\u4e86\u6211\u7684\u8fd9\u7bc7\u6587\u7ae0\u3002\u7531\u4e8eRedlock\u5df2\u7ecf\u670910\u591a\u4e2a\u72ec\u7acb\u7684\u5b9e\u73b0\uff0c\u800c\u4e14\u6211\u4eec\u4e0d\u77e5\u9053\u8c01\u5df2\u7ecf\u5728\u4f9d\u8d56\u6b64\u7b97\u6cd5\uff0c\u56e0\u6b64\u6211\u8ba4\u4e3a\u503c\u5f97\u516c\u5f00\u5206\u4eab\u6211\u7684\u7b14\u8bb0\u3002\u6211\u4e0d\u4f1a\u8ba8\u8bbaRedis\u7684\u5176\u4ed6\u65b9\u9762\uff0c\u5176\u4e2d\u4e00\u4e9b\u5df2\u7ecf\u5728\u5176\u4ed6\u5730\u65b9\u53d7\u5230\u4e86\u6279\u8bc4 \u3002<\/p>\n<p>\u4f60\u770b\u8fd9\u4e2a\u6587\u7ae0\uff0c\u5f00\u5934\u5c31\u662f\u706b\u836f\u5473\u5341\u8db3\uff1a<strong>\u4f60\u8bf4\u8981\u53cd\u9988\uff0c\u90a3\u6211\u5c31\u7ed9\u4f60\u53cd\u9988\u3002\u800c\u4e14\u4f60\u8fd9\u4e2a\u4e1c\u897f\u6709\u5176\u4ed6\u95ee\u9898\uff0c\u6211\u4e5f\u5c31\u4e0d\u8bf4\u4e86<\/strong>\u3002\uff08\u5176\u5b9e\u4f5c\u8005\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\u4e5f\u8bf4\u4e86\uff0c\u4ed6\u5f88\u559c\u6b22\u5e76\u4e14\u4e5f\u5728\u4f7f\u7528 Redis\uff0c\u53ea\u662f\u4ed6\u89c9\u5f97\u8fd9\u4e2a Redlock \u7b97\u6cd5\u662f\u4e0d\u4e25\u8c28\u7684\uff09<\/p>\n<p>\u957f\u53d1\u54e5\u4e3b\u8981\u56f4\u7ed5\u4e86\u4e0b\u9762\u7684\u8fd9\u5f20\u56fe\u8fdb\u884c\u4e86\u5c55\u5f00\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366520963c21ab91b27f.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u8981\u662f\u4e00\u773c\u6ca1\u770b\u660e\u767d\uff0c\u6211\u518d\u7ed9\u4f60\u4e00\u4e2a\u4e2d\u6587\u7248\u7684\uff0c\u6765\u81ea\u957f\u53d1\u54e5\u4e8e2017\u5e74\u51fa\u7248\u7684\u4e66\u300a\u6570\u636e\u5bc6\u96c6\u578b\u5e94\u7528\u7cfb\u7edf\u8bbe\u8ba1\u300b\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366520963c21ab96572f.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u53ef\u4ee5\u770b\u5230\u4e0a\u9762\u7684\u56fe\u7247\u4e2d\u63d0\u5230\u4e86\u7533\u8bf7\u79df\u7ea6\u3001\u79df\u7ea6\u5230\u671f\u7684\u5173\u952e\u8bcd\uff0c\u79df\u7ea6\u5176\u5b9e\u5c31\u662f\u53ef\u4ee5\u7406\u89e3\u4e3a\u5e26\u8d85\u65f6\u65f6\u95f4\u7684\u9501\u3002<\/p>\n<p>\u800c\u5728\u4e66\u4e2d\uff0c\u8fd9\u5f20\u56fe\u7247\u7684\u4e0b\u9762\u5199\u7684\u63cf\u8ff0\u8fd9\u6837\u7684\uff0c\u4f60\u5482\u6478\u5482\u6478\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366520963c21ab9d2016.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u62ff HBase \u4e3e\u4f8b\uff0c\u5176\u8bbe\u8ba1\u7684\u76ee\u6807\u662f\u786e\u4fdd\u5b58\u50a8\u7cfb\u7edf\u7684\u6587\u4ef6\u4e00\u6b21\u53ea\u80fd\u7531\u4e00\u4e2a\u5ba2\u6237\u7aef\u8bbf\u95ee\uff0c\u5982\u679c\u591a\u4e2a\u5ba2\u6237\u7aef\u8bd5\u56fe\u540c\u65f6\u5199\u5165\u8be5\u6587\u4ef6\uff0c\u6587\u4ef6\u5c31\u4f1a\u88ab\u7834\u574f\u3002\u90a3\u4e48\u4e0a\u9762\u7684\u56fe\u7247\u89e3\u91ca\u8d77\u6765\u5c31\u662f\uff1a<\/p>\n<p>1.\u5ba2\u6237\u7aef 1 \u5148\u53bb\u7533\u8bf7\u9501\uff0c\u5e76\u4e14\u6210\u529f\u83b7\u53d6\u5230\u9501\u3002\u4e4b\u540e\u5ba2\u6237\u7aef\u8fdb\u884c\u4e86\u957f\u65f6\u95f4\u7684 GC \u5bfc\u81f4\u4e86 STW \u7684\u60c5\u51b5\u3002<\/p>\n<p>2.\u5728 STW \u671f\u95f4\uff0c\u5ba2\u6237\u7aef 1 \u83b7\u53d6\u7684\u9501\u7684\u8d85\u65f6\u65f6\u95f4\u5230\u4e86\uff0c\u9501\u4e5f\u5c31\u5931\u6548\u4e86\u3002<\/p>\n<p>3.\u7531\u4e8e\u5ba2\u6237\u7aef 1 \u7684\u9501\u5df2\u7ecf\u8fc7\u671f\u5931\u6548\u4e86\uff0c\u6240\u4ee5\u5ba2\u6237\u7aef 2 \u53bb\u7533\u8bf7\u9501\u5c31\u53ef\u4ee5\u6210\u529f\u83b7\u5f97\u9501\u3002<\/p>\n<p>4.\u5ba2\u6237\u7aef 2 \u5f00\u59cb\u5199\u6587\u4ef6\uff0c\u5e76\u5b8c\u6210\u6587\u4ef6\u7684\u5199\u5165\u3002<\/p>\n<p>5.\u5ba2\u6237\u7aef 1 \u4ece STW \u4e2d\u6062\u590d\u8fc7\u6765\uff0c\u4ed6\u5e76\u4e0d\u77e5\u9053\u81ea\u5df1\u7684\u9501\u8fc7\u671f\u4e86\uff0c\u8fd8\u662f\u4f1a\u7ee7\u7eed\u6267\u884c\u6587\u4ef6\u5199\u5165\u64cd\u4f5c\uff0c\u5bfc\u81f4\u5ba2\u6237\u7aef 2 \u5199\u5165\u7684\u6587\u4ef6\u88ab\u7834\u574f\u3002\u800c\u4e14\u53ef\u4ee5\u770b\u5230\uff0c\u5b83\u6ca1\u6709\u6ee1\u8db3\u9501\u5728\u4efb\u610f\u65f6\u523b\u53ea\u6709\u4e00\u4e2a\u5ba2\u6237\u7aef\u6301\u6709\u7684\u539f\u5219\uff0c\u5373\u6ca1\u6709\u6ee1\u8db3\u4e92\u65a5\u6027\u3002<\/p>\n<p><strong>\u4e66\u91cc\u9762\u6ca1\u6709\u660e\u8bf4\uff0c\u4f46\u662f\u4f60\u54c1\u4e00\u54c1\uff0c\u8fd9\u91cc\u7684\u9501\u670d\u52a1\u96be\u9053\u4e0d\u662f\u5728\u8bf4 Redis\uff1f<\/strong><\/p>\n<p>\u6709\u7684\u670b\u53cb\u5c31\u4f1a\u8bf4\u4e86\uff0c\u90a3\u5ba2\u6237\u7aef 1 \u5199\u5165\u6587\u4ef6\u7684\u65f6\u5019\uff0c\u518d\u5224\u65ad\u4e00\u4e0b\u81ea\u5df1\u7684\u9501\u6709\u6ca1\u6709\u8fc7\u671f\u4e0d\u5c31\u53ef\u4ee5\u4e86\u5417\uff1f<\/p>\n<p>\u4f60\u53ef\u771f\u662f\u4e2a\u5c0f\u673a\u7075\u9b3c\u5462\uff0c\u90a3\u6211\u95ee\u4f60\uff0cGC \u53ef\u80fd\u662f\u53d1\u751f\u5728\u4efb\u4f55\u65f6\u95f4\u7684\uff0c\u4e07\u4e00 GC \u53d1\u751f\u5728\u5224\u65ad\u4e4b\u540e\u5462\uff1f<\/p>\n<p>\u4f60\u7ee7\u7eed\u603c\u6211\uff0c\u5982\u679c\u5ba2\u6237\u7aef\u4f7f\u7528\u7684\u662f\u6ca1\u6709 GC \u7684\u8bed\u8a00\u5462\uff1f<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366521063c21aba4a601.jpg\" class=\"aligncenter\"> <\/p>\n<p>**GC \u4e0d\u662f\u5bfc\u81f4\u7ebf\u7a0b\u6682\u505c\u7684\u552f\u4e00\u539f\u56e0\u554a\uff0c\u670b\u53cb\u4eec\u3002**\u53d1\u751f\u8fd9\u79cd\u60c5\u51b5\u7684\u539f\u56e0\u6709\u5f88\u591a\u7684\uff0c\u4f60\u770b\u770b\u957f\u53d1\u54e5\u4e66\u91cc\u4e3e\u7684\u4f8b\u5b50\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366521063c21abaa1acf.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u4e0a\u9762\u7684\u5185\u5bb9\u603b\u7ed3\u8d77\u6765\uff0c\u5c31\u662f\u5c31\u7b97\u9501\u670d\u52a1\u662f\u6b63\u5e38\u7684\uff0c\u4f46\u662f\u7531\u4e8e\u9501\u662f\u6709\u6301\u6709\u65f6\u95f4\u7684\uff0c\u7531\u4e8e\u5ba2\u6237\u7aef\u963b\u585e\u3001\u957f\u65f6\u95f4\u7684 GC \u6216\u8005\u7f51\u7edc\u539f\u56e0\uff0c\u5bfc\u81f4\u5171\u4eab\u8d44\u6e90\u88ab\u4e00\u4e2a\u4ee5\u4e0a\u7684\u5ba2\u6237\u7aef\u540c\u65f6\u8bbf\u95ee\u4e86\u3002<\/p>\n<p>\u5176\u5b9e\u4e0a\u9762\u957f\u53d1\u54e5\u5728\u4e66\u91cc\u76f4\u63a5\u8bf4\u4e86\uff1a\u8fd9\u662f\u4e0d\u6b63\u786e\u7684\u5b9e\u73b0\u3002<\/p>\n<p>\u4f60\u591a\u54c1\u4e00\u54c1\uff0c\u4e0a\u9762\u7684\u56fe\u662f\u4e0d\u662f\u6709\u70b9\u50cf\u7531\u4e8e Redis \u9501\u7684\u8fc7\u671f\u65f6\u95f4\u8bbe\u7f6e\u7684\u4e0d\u5408\u7406\uff0c\u5bfc\u81f4\u524d\u4e00\u4e2a\u4efb\u52a1\u8fd8\u6ca1\u6267\u884c\u5b8c\u6210\uff0c\u4f46\u662f\u9501\u7684\u65f6\u95f4\u5230\u671f\u4e86\uff0c\u540e\u4e00\u4e2a\u4efb\u52a1\u4e5f\u7533\u8bf7\u5230\u4e86\u9501\u3002<\/p>\n<p>\u5bf9\u4e8e\u8fd9\u79cd\u573a\u666f\uff0cRedission \u5176\u5b9e\u6709\u81ea\u5df1\u7684\u770b\u95e8\u72d7\u673a\u5236\u3002\u4f46\u662f\u4e0d\u5728\u8fd9\u6b21 Redlock \u7684\u8ba8\u8bba\u8303\u56f4\u5185\uff0c\u6240\u4ee5\u8fd9\u91cc\u5c31\u4e0d\u63cf\u8ff0\u4e86\u3002<\/p>\n<p>\u957f\u53d1\u54e5\u63d0\u51fa\u7684\u89e3\u51b3\u65b9\u6848\u662f\u4ec0\u4e48\u5462\uff1f<\/p>\n<p>\u4ed6\u79f0\u4e3a\uff1afencing token\u3002<\/p>\n<p><strong>\u957f\u53d1\u54e5\u8ba4\u4e3a\u4f7f\u7528\u9501\u548c\u79df\u7ea6\u673a\u5236\u6765\u4fdd\u62a4\u8d44\u6e90\u7684\u5e76\u53d1\u8bbf\u95ee\u65f6\uff0c\u5fc5\u987b\u786e\u4fdd\u56e0\u4e3a\u5f02\u5e38\u539f\u56e0\uff0c\u5bfc\u81f4\u9501\u8fc7\u671f\u7684\u90a3\u4e2a\u8282\u70b9\u4e0d\u80fd\u5f71\u54cd\u5176\u4ed6\u6b63\u5e38\u7684\u90e8\u5206\uff0c\u8981\u5b9e\u73b0\u8fd9\u4e00\u76ee\u6807\uff0c\u53ef\u4ee5\u91c7\u7528\u4e00\u76f4\u76f8\u5f53\u7b80\u5355\u7684 fencing\uff08\u6805\u680f\uff09\u3002<\/strong><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366521063c21abaf2ce0.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u5047\u8bbe\u6bcf\u6b21\u9501\u670d\u52a1\u5728\u6388\u4e88\u9501\u6216\u8005\u79df\u7ea6\u65f6\uff0c\u8fd8\u4f1a\u540c\u65f6\u8fd4\u56de\u4e00\u4e2a fencing \u4ee4\u724c\uff0c\u8be5\u4ee4\u724c\u6bcf\u6b21\u6388\u4e88\u90fd\u4f1a\u9012\u589e\u3002<\/p>\n<p>\u7136\u540e\uff0c\u8981\u6c42\u5ba2\u6237\u7aef\u6bcf\u6b21\u5411\u5b58\u50a8\u7cfb\u7edf\u53d1\u9001\u5199\u8bf7\u6c42\u65f6\uff0c\u90fd\u5fc5\u987b\u5305\u542b\u6240\u6301\u6709\u7684 fencing \u4ee4\u724c\u3002\u5b58\u50a8\u7cfb\u7edf\u9700\u8981\u5bf9\u4ee4\u724c\u8fdb\u884c\u6821\u9a8c\uff0c\u53d1\u73b0\u5982\u679c\u5df2\u7ecf\u5904\u7406\u8fc7\u66f4\u9ad8\u4ee4\u724c\u7684\u8bf7\u6c42\uff0c\u5219\u62d2\u7edd\u6267\u884c\u8be5\u8bf7\u6c42\u3002<\/p>\n<p>\u6bd4\u5982\u4e0b\u9762\u7684\u56fe\u7247\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366521163c21abb5c1a6.jpg\" class=\"aligncenter\"> <\/p>\n<p>1.\u5ba2\u6237\u7aef 1 \u83b7\u5f97\u4e00\u4e2a\u5177\u6709\u8d85\u65f6\u65f6\u95f4\u7684\u9501\u7684\u540c\u65f6\u5f97\u5230\u4e86\u4ee4\u724c\u53f7 33\uff0c\u4f46\u968f\u540e\u9677\u5165\u4e86\u4e00\u4e2a\u957f\u65f6\u95f4\u7684\u6682\u505c\u76f4\u5230\u9501\u5230\u671f\u3002<\/p>\n<p>2.\u8fd9\u65f6\u5ba2\u6237\u7aef2\u5df2\u7ecf\u83b7\u5f97\u4e86\u9501\u548c\u4ee4\u724c\u53f7 34 \uff0c\u7136\u540e\u53d1\u9001\u5199\u8bf7\u6c42\uff08\u4ee5\u53ca\u4ee4\u724c\u53f7 34 )\u5230\u5b58\u50a8\u670d\u52a1\u3002<\/p>\n<p>3.\u63a5\u4e0b\u6765\u5ba2\u6237\u7aef 1 \u6062\u590d\u8fc7\u6765\uff0c\u5e76\u4ee5\u4ee4\u724c\u53f7 33 \u6765\u5c1d\u8bd5\u5199\u5165\uff0c\u5b58\u50a8\u670d\u52a1\u5668\u7531\u4e8e\u8bb0\u5f55\u4e86\u6700\u8fd1\u5df2\u7ecf\u5b8c\u6210\u4e86\u66f4\u9ad8\u4ee4\u724c\u53f7\uff0834 )\uff0c\u56e0\u6b64\u62d2\u7edd\u4ee4\u724c\u53f7 33 \u7684\u5199\u8bf7\u6c42\u3002<\/p>\n<p>\u8fd9\u79cd\u7248\u672c\u53f7\u7684\u673a\u5236\uff0c\u8ba9\u6211\u4e0d\u7981\u60f3\u8d77\u4e86 Zookeeper\u3002<strong>\u5f53\u4f7f\u7528 ZK \u505a\u9501\u670d\u52a1\u65f6\uff0c\u53ef\u4ee5\u7528\u4e8b\u52a1\u6807\u8bc6 zxid \u6216\u8282\u70b9\u7248\u672c cversion \u6765\u5145\u5f53 fencing \u4ee4\u724c\uff0c\u8fd9\u4e24\u4e2a\u90fd\u53ef\u4ee5\u6ee1\u8db3\u5355\u8c03\u9012\u589e\u7684\u8981\u6c42\u3002<\/strong><\/p>\n<p>\u5728\u957f\u53d1\u54e5\u7684\u8fd9\u79cd\u673a\u5236\u4e2d\uff0c<strong>\u5b9e\u9645\u4e0a\u5c31\u662f\u8981\u6c42\u8d44\u6e90\u672c\u8eab\u5fc5\u987b\u4e3b\u52a8\u68c0\u67e5\u8bf7\u6c42\u6240\u6301\u4ee4\u724c\u4fe1\u606f\uff0c\u5982\u679c\u53d1\u73b0\u5df2\u7ecf\u5904\u7406\u8fc7\u66f4\u9ad8\u4ee4\u724c\u7684\u8bf7\u6c42\uff0c\u8981\u62d2\u7edd\u6301\u6709\u4f4e\u4ee4\u724c\u7684\u6240\u6709\u5199\u8bf7\u6c42\u3002<\/strong><\/p>\n<p>\u4f46\u662f\uff0c\u4e0d\u662f\u6240\u6709\u7684\u8d44\u6e90\u90fd\u662f\u6570\u636e\u5e93\u91cc\u9762\u7684\u6570\u636e\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u7248\u672c\u53f7\u53bb\u652f\u6301\u989d\u5916\u7684\u4ee4\u724c\u68c0\u67e5\u7684\uff0c\u90a3\u4e48\u5bf9\u4e8e\u4e0d\u652f\u6301\u989d\u5916\u7684\u4ee4\u724c\u68c0\u67e5\u8d44\u6e90\uff0c\u6211\u4eec\u4e5f\u53ef\u4ee5\u501f\u52a9\u8fd9\u79cd\u601d\u60f3\u7ed5\u8fc7\u8fd9\u4e2a\u9650\u5236\uff0c\u6bd4\u5982\u5bf9\u4e8e\u8bbf\u95ee\u6587\u4ef6\u5b58\u50a8\u670d\u52a1\u7684\u60c5\u51b5\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u4ee4\u724c\u5d4c\u5165\u5230\u6587\u4ef6\u540d\u4e2d\u3002<\/p>\n<p>\u603b\u4e4b\uff0c\u4e3a\u4e86\u907f\u514d\u5728\u9501\u4fdd\u62a4\u4e4b\u5916\u53d1\u751f\u8bf7\u6c42\u5904\u7406\uff0c\u9700\u8981\u8fdb\u884c\u989d\u5916\u7684\u68c0\u67e5\u673a\u5236\u3002<\/p>\n<p>\u957f\u53d1\u54e5\u5728\u4e66\u4e2d\u4e5f\u8bf4\u5230\u4e86\uff1a\u5728\u670d\u52a1\u7aef\u68c0\u67e5\u4ee4\u724c\u53ef\u80fd\u770b\u8d77\u6765\u6709\u70b9\u590d\u6742\uff0c\u4f46\u662f\u8fd9\u5176\u5b9e\u662f\u63a8\u8350\u7684\u6b63\u786e\u7684\u505a\u6cd5\uff1a<strong>\u7cfb\u7edf\u670d\u52a1\u4e0d\u80fd\u5047\u5b9a\u6240\u6709\u7684\u5ba2\u6237\u7aef\u90fd\u8868\u73b0\u7684\u7b26\u5408\u9884\u671f\u3002\u4ece\u5b89\u5168\u89d2\u5ea6\u8bb2\uff0c\u670d\u52a1\u7aef\u5fc5\u987b\u9632\u8303\u8fd9\u79cd\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u6ee5\u7528\u3002<\/strong><\/p>\n<p>\u8fd9\u4e2a\u5c31\u7c7b\u4f3c\u4e8e\u6211\u4eec\u4f5c\u4e3a\u540e\u7aef\u5f00\u53d1\u4eba\u5458\uff0c\u4e5f\u4e0d\u80fd\u76f8\u4fe1\u6765\u81ea\u524d\u7aef\u6216\u8005\u5176\u4ed6\u63a5\u53e3\u8fc7\u6765\u7684\u6570\u636e\uff0c\u5fc5\u987b\u5bf9\u5176\u8fdb\u884c\u6821\u9a8c\u3002<\/p>\n<p>\u5230\u8fd9\u91cc\u957f\u53d1\u54e5\u94fa\u57ab\u5b8c\u6210\u4e86\uff0c\u5f00\u59cb\u8f6c\u5934\u6307\u5411 RedLock\uff0c\u4ed6\u8ba4\u4e3a Redlock \u662f\u4e00\u4e2a\u4e25\u91cd\u4f9d\u8d56\u7cfb\u7edf\u65f6\u949f\u7684\u5206\u5e03\u5f0f\u9501\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366521163c21abbaedde.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u4ed6\u4e3e\u4e86\u4e00\u4e2a\u4f8b\u5b50\uff1a<\/p>\n<p>1.\u5ba2\u6237\u7aef 1 \u4ece Redis \u8282\u70b9 A, B, C \u6210\u529f\u83b7\u53d6\u4e86\u9501\u3002\u7531\u4e8e\u7f51\u7edc\u95ee\u9898\uff0c\u65e0\u6cd5\u8bbf\u95ee D \u548c E\u3002<\/p>\n<p>2.\u8282\u70b9 C \u4e0a\u7684\u65f6\u949f\u53d1\u751f\u4e86\u5411\u524d\u8df3\u8dc3\uff0c\u5bfc\u81f4\u5b83\u4e0a\u9762\u7ef4\u62a4\u7684\u9501\u8fc7\u671f\u4e86\u3002<\/p>\n<p>3.\u5ba2\u6237\u7aef 2 \u4ece Redis \u8282\u70b9 C, D, E \u6210\u529f\u83b7\u53d6\u4e86\u540c\u4e00\u4e2a\u8d44\u6e90\u7684\u9501\u3002\u7531\u4e8e\u7f51\u7edc\u95ee\u9898\uff0c\u65e0\u6cd5\u8bbf\u95ee A \u548c B\u3002 \u73b0\u5728\uff0c\u5ba2\u6237\u7aef 1 \u548c\u5ba2\u6237\u7aef 2 \u90fd\u8ba4\u4e3a\u81ea\u5df1\u6301\u6709\u4e86\u9501\u3002<\/p>\n<p>\u8fd9\u6837\u7684\u573a\u666f\u662f\u53ef\u80fd\u51fa\u73b0\u7684\uff0c\u56e0\u4e3a Redlock \u4e25\u91cd\u4f9d\u8d56\u7cfb\u7edf\u65f6\u949f\uff0c\u6240\u4ee5\u4e00\u65e6\u7cfb\u7edf\u7684\u65f6\u95f4\u53d8\u5f97\u4e0d\u51c6\u786e\u4e86\uff0c\u90a3\u4e48\u8be5\u7b97\u6cd5\u7684\u5b89\u5168\u6027\u4e5f\u5c31\u5f97\u4e0d\u5230\u4fdd\u969c\u4e86\u3002<\/p>\n<p>\u957f\u53d1\u54e5\u4e3e\u8fd9\u4e2a\u4f8b\u5b50\u5176\u5b9e\u662f\u4e3a\u4e86\u8f85\u4f50\u4ed6\u524d\u9762\u63d0\u51fa\u7684\u89c2\u70b9\uff1a<strong>\u4e00\u4e2a\u597d\u7684\u5206\u5e03\u5f0f\u7b97\u6cd5\u5e94\u8be5\u662f\u57fa\u4e8e\u5f02\u6b65\u6a21\u578b\u7684\uff0c\u7b97\u6cd5\u7684\u5b89\u5168\u6027\u4e0d\u5e94\u8be5\u4f9d\u8d56\u4e0e\u4efb\u4f55\u8bb0\u65f6\u5047\u8bbe\uff0c\u5c31\u662f\u4e0d\u80fd\u628a\u65f6\u95f4\u4f5c\u4e3a\u5b89\u5168\u4fdd\u969c\u7684\u3002\u5728\u5f02\u6b65\u6a21\u578b\u4e2d\uff0c\u7a0b\u5e8f\u6682\u505c\u3001\u6d88\u606f\u5728\u7f51\u7edc\u4e2d\u5ef6\u8fdf\u751a\u81f3\u4e22\u5931\u3001\u7cfb\u7edf\u65f6\u95f4\u9519\u8bef\u8fd9\u4e9b\u56e0\u7d20\u90fd\u4e0d\u5e94\u8be5\u5f71\u54cd\u5b83\u7684\u5b89\u5168\u6027\uff0c\u53ea\u80fd\u5f71\u54cd\u5230\u5b83\u7684\u6d3b\u6027\u3002<\/strong><\/p>\n<p>\u7528\u5927\u767d\u8bdd\u8bf4\uff0c\u5c31\u662f\u5728<strong>\u6781\u5176\u6781\u7aef\u7684\u60c5\u51b5\u4e0b\uff0c\u5206\u5e03\u5f0f\u7cfb\u7edf\u9876\u5929\u4e86\u4e5f\u5c31\u662f\u5728\u6709\u9650\u7684\u65f6\u95f4\u5185\u4e0d\u80fd\u7ed9\u51fa\u7ed3\u679c\u800c\u5df2\uff0c\u800c\u4e0d\u80fd\u7ed9\u51fa\u4e00\u4e2a\u9519\u8bef\u7684\u7ed3\u679c\u3002<\/strong><\/p>\n<p>\u8fd9\u6837\u7684\u7b97\u6cd5\u5b9e\u9645\u4e0a\u662f\u5b58\u5728\u7684\uff0c\u6bd4\u5982 Paxos\u3001Raft\u3002\u5f88\u660e\u663e\uff0c\u6309\u7167\u8fd9\u4e2a\u6807\u51c6\uff0c Redlock \u7684\u5b89\u5168\u7ea7\u522b\u662f\u4e0d\u591f\u7684\u3002<\/p>\n<p>\u800c\u5bf9\u4e8e\u5377\u53d1\u54e5\u63d0\u51fa\u7684\u5ef6\u8fdf\u542f\u52a8\u65b9\u6848\uff0c\u957f\u53d1\u54e5\u8fd8\u662f\u4e00\u68d2\u5b50\u6253\u6b7b\uff1a<strong>\u4f60\u5ef6\u8fdf\u542f\u52a8\u548b\u7684\uff1f\u5ef6\u8fdf\u542f\u52a8\u8fd8\u4e0d\u662f\u4f9d\u8d56\u4e8e\u5408\u7406\u51c6\u786e\u7684\u65f6\u95f4\u5ea6\u91cf\u3002<\/strong><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366521263c21abc00252.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u53ef\u80fd\u662f\u957f\u53d1\u54e5\u89c9\u5f97\u4e3e\u8fd9\u4e2a\u65f6\u949f\u8df3\u8dc3\u7684\u4f8b\u5b50\u4e0d\u591f\u597d\u7684\uff0c\u5927\u5bb6\u90fd\u53ef\u80fd\u8ba4\u4e3a\u65f6\u949f\u8df3\u8dc3\u662f\u4e0d\u73b0\u5b9e\u7684\uff0c\u56e0\u4e3a\u5bf9\u6b63\u786e\u914d\u7f6eNTP\u5c31\u80fd\u6446\u6b63\u65f6\u949f\u975e\u5e38\u6709\u4fe1\u5fc3\u3002<\/p>\n<p>\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u4ed6\u4e3e\u4e86\u4e00\u4e2a\u8fdb\u7a0b\u6682\u505c\u53ef\u80fd\u5bfc\u81f4\u7b97\u6cd5\u5931\u8d25\u7684\u793a\u4f8b\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366521263c21abc457b2.jpg\" class=\"aligncenter\"> <\/p>\n<p>1.\u5ba2\u6237\u7aef 1 \u5411 Redis \u8282\u70b9 A, B, C, D, E \u53d1\u8d77\u9501\u8bf7\u6c42\u3002<\/p>\n<p>2.\u5404\u4e2a Redis \u8282\u70b9\u5df2\u7ecf\u628a\u8bf7\u6c42\u7ed3\u679c\u8fd4\u56de\u7ed9\u4e86\u5ba2\u6237\u7aef 1\uff0c\u4f46\u5ba2\u6237\u7aef 1 \u5728\u6536\u5230\u8bf7\u6c42\u7ed3\u679c\u4e4b\u524d\u8fdb\u5165\u4e86\u957f\u65f6\u95f4\u7684 GC \u9636\u6bb5\u3002<\/p>\n<p>3.\u957f\u65f6\u95f4\u7684 GC\uff0c\u5bfc\u81f4\u5728\u6240\u6709\u7684 Redis \u8282\u70b9\u4e0a\uff0c\u9501\u8fc7\u671f\u4e86\u3002<\/p>\n<p>4.\u5ba2\u6237\u7aef 2 \u5728 A, B, C, D, E \u4e0a\u7533\u8bf7\u5e76\u83b7\u53d6\u5230\u4e86\u9501\u3002<\/p>\n<p>5.\u5ba2\u6237\u7aef 1 \u4ece GC \u9636\u6bb5\u4e2d\u6062\u590d\uff0c\u6536\u5230\u4e86\u524d\u9762\u7b2c 2 \u6b65\u6765\u81ea\u5404\u4e2a Redis \u8282\u70b9\u7684\u8bf7\u6c42\u7ed3\u679c\u3002\u5ba2\u6237\u7aef 1 \u8ba4\u4e3a\u81ea\u5df1\u6210\u529f\u83b7\u53d6\u5230\u4e86\u9501\u3002<\/p>\n<p>6.\u5ba2\u6237\u7aef 1 \u548c\u5ba2\u6237\u7aef 2 \u73b0\u5728\u90fd\u8ba4\u4e3a\u81ea\u5df1\u6301\u6709\u4e86\u9501\u3002<\/p>\n<p>\u5176\u5b9e\u53ea\u8981\u5341\u5206\u6e05\u695a Redlock \u7684\u52a0\u9501\u8fc7\u7a0b\uff0c\u6211\u4eec\u5c31\u77e5\u9053\uff0c\u8fd9\u79cd\u60c5\u51b5\u5176\u5b9e\u5bf9\u4e8e Redlock \u662f\u6ca1\u6709\u5f71\u54cd\u7684\uff0c\u56e0\u4e3a\u5728\u7b2c 5 \u6b65\uff0c\u5ba2\u6237\u7aef 1 \u4ece GC \u9636\u6bb5\u4e2d\u6062\u590d\u8fc7\u6765\u4ee5\u540e\uff0c\u5728 Redlock \u7b97\u6cd5\u4e2d\uff0c\uff08\u6211\u4eec\u524d\u9762 Redlock \u7b80\u4ecb\u7684\u65f6\u5019\u63d0\u5230\u7684\u7b2c\u56db\u6b65\uff09\u5982\u679c\u53d6\u5230\u4e86\u9501\uff0ckey \u7684\u771f\u6b63\u6709\u6548\u65f6\u95f4\u7b49\u4e8e\u6709\u6548\u65f6\u95f4\u51cf\u53bb\u83b7\u53d6\u9501\u6240\u4f7f\u7528\u7684\u65f6\u95f4\u3002<\/p>\n<p>\u6240\u4ee5\u5ba2\u6237\u7aef1\u901a\u8fc7\u8fd9\u4e2a\u68c0\u67e5\u53d1\u73b0\u9501\u5df2\u7ecf\u8fc7\u671f\u4e86\uff0c\u4e0d\u4f1a\u518d\u8ba4\u4e3a\u81ea\u5df1\u6210\u529f\u83b7\u53d6\u5230\u9501\u4e86\u3002<\/p>\n<p>\u800c\u968f\u540e\u5377\u53d1\u54e5\u7684\u56de\u51fb\u4e2d\u4e5f\u63d0\u5230\u4e86\u8fd9\u70b9\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366521263c21abc8a573.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u4f46\u662f\uff0c\u7ec6\u7ec6\u60f3\u6765\uff0c\u6211\u89c9\u5f97\u957f\u53d1\u54e5\u7684\u610f\u56fe\u4e0d\u5728\u4e8e\u6b64\u3002\u629b\u5f00\u4e0a\u9762\u7684\u95ee\u9898\u6765\u8bb2\uff0c\u4ed6\u66f4\u60f3\u7a81\u51fa\u7684\u662f\uff0c\u4e00\u4e2a\u9501\u5728\u5ba2\u6237\u7aef\u62ff\u5230\u540e\uff0c\u8fd8\u6ca1\u4f7f\u7528\u5c31\u8fc7\u671f\u4e86\uff0c\u8fd9\u662f\u4e0d\u597d\u7684\u3002<strong>\u4ece\u5ba2\u6237\u7aef\u7684\u89d2\u5ea6\u6765\u770b\uff0c\u5c31\u662f\u8fd9\u73a9\u610f\u4e0d\u9760\u8c31\u554a\uff0c\u4f60\u7ed9\u6211\u4e00\u628a\u9501\uff0c\u6211\u8fd8\u6ca1\u7528\u5462\uff0c\u4f60\u5c31\u8fc7\u671f\u4e86\uff1f<\/strong><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366521263c21abcc706b.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u9664\u4e86\u4e0a\u9762\u8bf4\u7684\u8fd9\u4e9b\u70b9\u5916\uff0c\u957f\u53d1\u54e5\u8fd8\u63d0\u51fa\u4e86\u4e00\u4e2a\u7b97\u662f\u81ea\u5df1\u7684\u7ecf\u9a8c\u4e4b\u8c08\u5427\uff1a<\/p>\n<p><strong>\u6211\u4eec\u83b7\u53d6\u9501\u7684\u7528\u9014\u662f\u4ec0\u4e48\uff1f<\/strong><\/p>\n<p>\u5728\u4ed6\u770b\u6765\u4e0d\u5916\u4e4e\u4e24\u4e2a\u65b9\u9762\uff0c<strong>\u6548\u7387\u548c\u6b63\u786e\u6027<\/strong>\u3002\u4ed6\u5206\u522b\u63cf\u8ff0\u5982\u4e0b\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366521363c21abd1427e.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u5982\u679c\u662f\u4e3a\u4e86\u6548\u7387\uff0c\u90a3\u4e48\u5c31\u662f\u8981\u534f\u8c03\u5404\u4e2a\u5ba2\u6237\u7aef\uff0c\u907f\u514d\u4ed6\u4eec\u505a\u91cd\u590d\u7684\u5de5\u4f5c\u3002\u8fd9\u79cd\u573a\u666f\u4e0b\uff0c\u5373\u4f7f\u9501\u5076\u5c14\u5931\u6548\u4e86\uff0c\u53ea\u662f\u53ef\u80fd\u51fa\u73b0\u4e24\u4e2a\u5ba2\u6237\u7aef\u5b8c\u6210\u4e86\u540c\u6837\u7684\u5de5\u4f5c\uff0c\u5176\u7ed3\u679c\u662f\u6210\u672c\u7565\u6709\u589e\u52a0\uff08\u60a8\u6700\u7ec8\u5411 AWS \u652f\u4ed8\u7684\u8d39\u7528\u6bd4\u539f\u672c\u591a5\u7f8e\u5206\uff09\uff0c\u6216\u8005\u5e26\u6765\u4e0d\u4fbf\uff08\u4f8b\u5982\uff0c\u7528\u6237\u6700\u7ec8\u4e24\u6b21\u6536\u5230\u76f8\u540c\u7684\u7535\u5b50\u90ae\u4ef6\u901a\u77e5\uff09\u3002<\/p>\n<p>\u5982\u679c\u662f\u4e3a\u4e86\u6b63\u786e\u6027\uff0c\u90a3\u4e48\u5728\u4efb\u4f55\u60c5\u51b5\u4e0b\u90fd\u4e0d\u5141\u8bb8\u9501\u5931\u6548\u7684\u60c5\u51b5\u53d1\u751f\uff0c\u56e0\u4e3a\u4e00\u65e6\u53d1\u751f\uff0c\u5c31\u53ef\u80fd\u610f\u5473\u7740\u6570\u636e\u4e0d\u4e00\u81f4\uff0c\u6570\u636e\u4e22\u5931\uff0c\u6587\u4ef6\u635f\u574f\uff0c\u6216\u8005\u5176\u5b83\u4e25\u91cd\u7684\u95ee\u9898\u3002\uff08\u6bd4\u5982\u4e2a\u60a3\u8005\u6ce8\u5c04\u4e86\u4e24\u500d\u7684\u836f\u5242\uff09<\/p>\n<p>\u6700\u540e\uff0c\u957f\u53d1\u54e5\u5f97\u51fa\u7684\u7ed3\u8bba\u662f\uff1aneither fish nor fowl\uff08\u4e0d\u4f26\u4e0d\u7c7b\uff09<\/p>\n<p><strong>\u5bf9\u4e8e\u63d0\u5347\u6548\u7387\u7684\u573a\u666f\u4e0b\uff0c\u4f7f\u7528\u5206\u5e03\u5f0f\u9501\uff0c\u5141\u8bb8\u9501\u7684\u5076\u5c14\u5931\u6548\uff0c\u90a3\u4e48\u4f7f\u7528\u5355 Redis \u8282\u70b9\u7684\u9501\u65b9\u6848\u5c31\u8db3\u591f\u4e86\uff0c\u7b80\u5355\u800c\u4e14\u6548\u7387\u9ad8\u3002\u7528 Redlock \u592a\u91cd\u3002<\/strong><\/p>\n<p><strong>\u5bf9\u4e8e\u6b63\u786e\u6027\u8981\u6c42\u9ad8\u7684\u573a\u666f\u4e0b\uff0c\u5b83\u662f\u4f9d\u8d56\u4e8e\u65f6\u95f4\u7684\uff0c\u4e0d\u662f\u4e00\u4e2a\u8db3\u591f\u5f3a\u7684\u7b97\u6cd5\u3002Redlock\u5e76\u6ca1\u6709\u4fdd\u4f4f\u6b63\u786e\u6027\u3002<\/strong><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366521363c21abd54452.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u90a3\u5e94\u8be5\u4f7f\u7528\u4ec0\u4e48\u6280\u672f\u5462\uff1f<\/p>\n<p>\u957f\u53d1\u54e5\u8ba4\u4e3a\uff0c\u5e94\u8be5\u8003\u8651\u7c7b\u4f3c Zookeeper \u7684\u65b9\u6848\uff0c\u6216\u8005\u652f\u6301\u4e8b\u52a1\u7684\u6570\u636e\u5e93\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366521363c21abd91fe5.jpg\" class=\"aligncenter\"> <\/p>\n<h2>\u5377\u53d1\u54e5\u56de\u51fb<\/h2>\n<p>\u957f\u53d1\u54e5\u53d1\u51fa\u300aHow to do distributed locking\u300b\u8fd9\u7bc7\u6587\u7ae0\u7684\u7b2c\u4e8c\u5929\uff0c\u5377\u53d1\u54e5\u5c31\u8fdb\u884c\u4e86\u56de\u51fb\uff0c\u53d1\u5e03\u4e86\u540d\u4e3a\u300aIs Redlock safe?\u300b\u7684\u6587\u7ae0\u3002<\/p>\n<p>\u6587\u7ae0\u5730\u5740\uff1ahttp:\/\/antirez.com\/news\/101<\/p>\n<p>\u8981\u8bf4\u5927\u4f6c\u4e0d\u6127\u662f\u5927\u4f6c\uff0c\u5377\u53d1\u54e5\u7684\u56de\u51fb\u6761\u7406\u6e05\u695a\uff0c\u884c\u6587\u6d41\u7545\u3002\u4ed6\u603b\u7ed3\u540e\u8ba4\u4e3a\u957f\u53d1\u54e5\u89c9\u5f97 Redlock \u4e0d\u5b89\u5168\u4e3b\u8981\u5206\u4e3a\u4e24\u4e2a\u65b9\u9762\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366521363c21abdd12d4.jpg\" class=\"aligncenter\"> <\/p>\n<p>1.\u5e26\u6709\u81ea\u52a8\u8fc7\u671f\u529f\u80fd\u7684\u5206\u5e03\u5f0f\u9501\uff0c\u9700\u8981\u4e00\u79cd\u65b9\u6cd5\uff08fencing\u673a\u5236\uff09\u6765\u907f\u514d\u5ba2\u6237\u7aef\u5728\u8fc7\u671f\u65f6\u95f4\u540e\u4f7f\u7528\u9501\u65f6\u51fa\u73b0\u95ee\u9898\uff0c\u4ece\u800c\u5bf9\u5171\u4eab\u8d44\u6e90\u8fdb\u884c\u771f\u6b63\u7684\u4e92\u65a5\u4fdd\u62a4\u3002\u957f\u53d1\u54e5\u8bf4Redlock\u6ca1\u6709\u8fd9\u79cd\u673a\u5236\u3002<\/p>\n<p>2.\u957f\u53d1\u54e5\u8bf4\uff0c\u65e0\u8bba\u95ee\u9898\u201c1\u201d\u5982\u4f55\u89e3\u51b3\uff0c\u8be5\u7b97\u6cd5\u672c\u8d28\u4e0a\u90fd\u662f\u4e0d\u5b89\u5168\u7684\uff0c\u56e0\u4e3a\u5b83\u5bf9\u7cfb\u7edf\u6a21\u578b\u8fdb\u884c\u4e86\u8bb0\u65f6\u5047\u8bbe\uff0c\u800c\u8fd9\u4e9b\u5047\u8bbe\u5728\u5b9e\u9645\u7cfb\u7edf\u4e2d\u662f\u65e0\u6cd5\u4fdd\u8bc1\u7684\u3002<\/p>\n<p>\u5bf9\u4e8e\u7b2c\u4e00\u4e2a\u70b9\uff0c\u5377\u53d1\u54e5\u5217\u4e865\u5927\u70b9\u6765\u53cd\u9a73\u8fd9\u4e2a\u95ee\u9898\uff0c\u5176\u4e2d\u4e00\u4e2a\u91cd\u8981\u7684\u89c2\u70b9\u662f\u4ed6\u8ba4\u4e3a\u867d\u7136 Redlock \u6ca1\u6709\u63d0\u4f9b\u7c7b\u4f3c\u4e8efencing\u673a\u5236\u90a3\u6837\u7684\u5355\u8c03\u9012\u589e\u7684\u4ee4\u724c\uff0c\u4f46\u662f\u4e5f\u6709\u4e00\u4e2a\u968f\u673a\u4e32\uff0c\u628a\u8fd9\u4e2a\u968f\u673a\u4e32\u5f53\u505atoken\uff0c\u4e5f\u53ef\u4ee5\u8fbe\u5230\u540c\u6837\u7684\u6548\u679c\u554a\u3002\u5f53\u9700\u8981\u548c\u5171\u4eab\u8d44\u6e90\u4ea4\u4e92\u7684\u65f6\u5019\uff0c\u6211\u4eec\u68c0\u67e5\u4e00\u4e0b\u8fd9\u4e2atoken\u662f\u5426\u53d1\u751f\u4e86\u53d8\u5316\uff0c\u5982\u679c\u6ca1\u6709\u518d\u6267\u884c\u201c\u83b7\u53d6-\u4fee\u6539-\u5199\u56de\u201d\u7684\u64cd\u4f5c\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366521463c21abe27562.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u6700\u7ec8\u5f97\u51fa\u7684\u7ed3\u8bba\u662f\u4e00\u4e2a\u7075\u9b42\u53cd\u95ee\uff1a<strong>\u65e2\u7136\u5728\u9501\u5931\u6548\u7684\u60c5\u51b5\u4e0b\u5df2\u7ecf\u5b58\u5728\u4e00\u79cdfencing\u673a\u5236\u80fd\u7ee7\u7eed\u4fdd\u6301\u8d44\u6e90\u7684\u4e92\u65a5\u8bbf\u95ee\u4e86\uff0c\u90a3\u4e3a\u4ec0\u4e48\u8fd8\u8981\u4f7f\u7528\u4e00\u4e2a\u5206\u5e03\u5f0f\u9501\u5e76\u4e14\u8fd8\u8981\u6c42\u5b83\u63d0\u4f9b\u90a3\u4e48\u5f3a\u7684\u5b89\u5168\u6027\u4fdd\u8bc1\u5462\uff1f<\/strong><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366521463c21abe72537.jpg\" class=\"aligncenter\"><br \/>\n<img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366521463c21abeb8ba3.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u7136\u800c\u7b2c\u4e8c\u4e2a\u95ee\u9898\uff0c\u5bf9\u4e8e\u7f51\u7edc\u5ef6\u8fdf\u6216\u8005 GC \u6682\u505c\uff0c\u6211\u4eec\u524d\u9762\u5206\u6790\u8fc7\uff0c\u5bf9 Redlock \u7684\u5b89\u5168\u6027\u5e76\u4e0d\u4f1a\u4ea7\u751f\u5f71\u54cd\uff0c\u8bf4\u660e\u5377\u53d1\u54e5\u5728\u8bbe\u8ba1\u7684\u65f6\u5019\u5176\u5b9e\u662f\u8003\u8651\u8fc7\u65f6\u95f4\u56e0\u7d20\u5e26\u6765\u7684\u95ee\u9898\u7684\u3002<\/p>\n<p>\u4f46\u662f\u5982\u679c\u662f\u957f\u53d1\u54e5\u63d0\u51fa\u7684\u65f6\u949f\u53d1\u751f\u8df3\u8dc3\uff0c\u5f88\u660e\u663e\uff0c\u5377\u53d1\u54e5\u77e5\u9053\u5982\u679c\u65f6\u949f\u53d1\u751f\u8df3\u8dc3\uff0c Redlock \u7684\u5b89\u5168\u6027\u5c31\u5f97\u4e0d\u5230\u4fdd\u969c\uff0c\u8fd9\u662f\u4ed6\u7684\u547d\u95e8\u3002<\/p>\n<p>\u4f46\u662f\u5bf9\u4e8e\u957f\u53d1\u54e5\u5199\u65f6\u949f\u8df3\u8dc3\u7684\u65f6\u5019\u63d0\u51fa\u7684\u4e24\u4e2a\u4f8b\u5b50\uff1a<\/p>\n<p>1.\u8fd0\u7ef4\u4eba\u5458\u624b\u52a8\u4fee\u6539\u4e86\u7cfb\u7edf\u65f6\u949f\u3002<\/p>\n<p>2.\u4eceNTP\u670d\u52a1\u6536\u5230\u4e86\u4e00\u4e2a\u5927\u7684\u65f6\u949f\u66f4\u65b0\u4e8b\u4ef6\u3002<\/p>\n<p>\u5377\u53d1\u54e5\u8fdb\u884c\u4e86\u56de\u51fb\uff1a<\/p>\n<p>\u7b2c\u4e00\u70b9\u8fd9\u4e2a\u8fd0\u7ef4\u4eba\u5458\u624b\u52a8\u4fee\u6539\u65f6\u949f\uff0c\u5c5e\u4e8e\u4eba\u4e3a\u56e0\u7d20\uff0c\u8fd9\u4e2a\u6211\u4e5f\u6ca1\u529e\u6cd5\u554a\uff0c\u4eba\u5bb6\u5c31\u662f\u8981\u641e\u4f60\uff0c\u600e\u4e48\u529e\uff1f\u52a0\u5f3a\u7ba1\u7406\uff0c\u4e0d\u8981\u8fd9\u6837\u505a\u3002<\/p>\n<p>\u7b2c\u4e8c\u70b9\u4eceNTP\u670d\u52a1\u6536\u5230\u4e00\u4e2a\u5927\u7684\u65f6\u949f\u66f4\u65b0\uff0c\u5bf9\u4e8e\u8fd9\u4e2a\u95ee\u9898\uff0c\u9700\u8981\u901a\u8fc7\u8fd0\u7ef4\u6765\u4fdd\u8bc1\u3002\u9700\u8981\u5c06\u5927\u7684\u65f6\u95f4\u66f4\u65b0\u5230\u670d\u52a1\u5668\u7684\u65f6\u5019\uff0c\u5e94\u5f53\u91c7\u53d6\u5c11\u91cf\u591a\u6b21\u7684\u65b9\u5f0f\u3002\u591a\u6b21\u4fee\u6539\uff0c\u6bcf\u6b21\u66f4\u65b0\u65f6\u95f4\u5c3d\u91cf\u5c0f\u3002<\/p>\n<p>\u5173\u4e8e\u8fd9\u4e2a\u5730\u65b9\u7684\u4e89\u8bba\uff0c\u5c31\u770b\u4f60\u662f\u4fe1\u957f\u53d1\u54e5\u7684\u65f6\u95f4\u4e00\u5b9a\u4f1a\u8df3\u8dc3\uff0c\u8fd8\u662f\u4fe1\u5377\u53d1\u54e5\u7684\u65f6\u95f4\u8df3\u8dc3\u6211\u4eec\u4e5f\u662f\u53ef\u4ee5\u5904\u7406\u7684\u3002<\/p>\n<p>\u5173\u4e8e\u65f6\u949f\u8df3\u8dc3\uff0c\u6709\u4e00\u7bc7\u6587\u7ae0\u53ef\u4ee5\u770b\u770b\uff0c\u4e5f\u662f\u8fd9\u6b21\u795e\u4ed9\u6253\u67b6\u5bfc\u81f4\u7684\u4ea7\u7269\uff1a<\/p>\n<p>https:\/\/jvns.ca\/blog\/2016\/02\/09\/til-clock-skew-exists\/<\/p>\n<p>\u6587\u7ae0\u5f97\u51fa\u7684\u6700\u7ec8\u7ed3\u8bba\u662f\uff1a\u65f6\u949f\u8df3\u8dc3\u662f\u5b58\u5728\u7684\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366521563c21abf02afb.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u5176\u5b9e\u6211\u4eec\u5927\u5bb6\u5e94\u8be5\u90fd\u7ecf\u5386\u8fc7\u65f6\u949f\u8df3\u8dc3\u7684\u60c5\u51b5\uff0c\u4f60\u8fd8\u8bb0\u5f972016\u5e74\u7684\u6700\u540e\u4e00\u5929\uff0c\u5f53\u65f6\u6709\u4e2a\u201c\u95f0\u79d2\u201d\u7684\u6982\u5ff5\u5417\uff1f\u5bfc\u81f42017\u5e741\u67081\u65e5\u51fa\u73b0\u4e8607:59:60\u7684\u5947\u89c2\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366521563c21abf5b98e.jpg\" class=\"aligncenter\"> <\/p>\n<h2>\u6253\u67b6\u7684\u7126\u70b9<\/h2>\n<p><strong>\u7ecf\u8fc7\u8fd9\u6837\u7684\u4e00\u6765\u4e00\u56de\uff0c\u5176\u5b9e\u53cc\u65b9\u6253\u67b6\u7684\u7126\u70b9\u5c31\u5f88\u660e\u786e\u4e86\uff0c\u5c31\u662f\u5927\u5ef6\u8fdf\u5bf9\u5206\u5e03\u5f0f\u9501\u5e26\u6765\u7684\u5f71\u54cd\u3002<\/strong><\/p>\n<p>\u800c\u5bf9\u4e8e\u5927\u5ef6\u8fdf\u7ed9Redlock\u5e26\u6765\u7684\u5f71\u54cd\uff0c\u5c31\u662f\u957f\u53d1\u54e5\u5206\u6790\u7684\u90a3\u6837\uff0c\u9501\u5230\u671f\u4e86\uff0c\u4e1a\u52a1\u8fd8\u6ca1\u6267\u884c\u5b8c\u3002\u5377\u53d1\u54e5\u8ba4\u4e3a\u8fd9\u79cd\u5f71\u54cd\u4e0d\u5355\u5355\u9488\u5bf9 Redlock \uff0c\u5176\u4ed6\u5177\u6709\u81ea\u52a8\u91ca\u653e\u9501\u7684\u5206\u5e03\u5f0f\u9501\u4e5f\u662f\u5b58\u5728\u4e00\u6837\u7684\u95ee\u9898\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366521563c21abfab608.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u800c\u5173\u4e8e\u5927\u5ef6\u8fdf\u7684\u95ee\u9898\uff0c\u6211\u5728\u67d0\u793e\u4ea4\u5e73\u53f0\u4e0a\u627e\u5230\u4e86\u4e24\u4f4d\u795e\u4ed9\u7684\u4e0b\u9762\u7684\u5bf9\u8bdd\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366521663c21ac008776.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u5377\u53d1\u54e5\u95ee\uff1a\u6211\u60f3\u77e5\u9053\uff0c\u5728\u6211\u53d1\u6587\u56de\u590d\u4e4b\u540e\uff0c\u6211\u4eec\u80fd\u5426\u5728\u4e00\u70b9\u4e0a\u8fbe\u6210\u4e00\u81f4\uff0c\u5c31\u662f\u5927\u7684\u6d88\u606f\u5ef6\u8fdf\u4e0d\u4f1a\u7ed9Redlock\u7684\u8fd0\u884c\u9020\u6210\u635f\u5bb3\u3002<\/p>\n<p>\u957f\u53d1\u54e5\u7b54\uff1a\u5bf9\u4e8e\u5ba2\u6237\u7aef\u548c\u9501\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u6d88\u606f\u5ef6\u8fdf\uff0c\u6211\u540c\u610f\u4f60\u7684\u89c2\u70b9\u3002\u4f46\u5ba2\u6237\u7aef\u548c\u88ab\u8bbf\u95ee\u8d44\u6e90\u4e4b\u95f4\u7684\u5ef6\u8fdf\u8fd8\u662f\u6709\u95ee\u9898\u7684\u3002<\/p>\n<p>\u6240\u4ee5\u901a\u8fc7\u5377\u53d1\u54e5\u7684\u56de\u51fb\u6587\u7ae0\u548c\u67d0\u793e\u4ea4\u5e73\u53f0\u7684\u8bb0\u5f55\uff0c<strong>\u4ed6\u662f\u540c\u610f\u5927\u7684\u7cfb\u7edf\u65f6\u949f\u8df3\u8dc3\u4f1a\u9020\u6210 Redlock \u5931\u6548\u7684\u3002\u5728\u8fd9\u4e00\u70b9\u4e0a\uff0c\u4ed6\u4e0e\u957f\u53d1\u54e5\u7684\u89c2\u70b9\u7684\u4e0d\u540c\u5728\u4e8e\uff0c\u4ed6\u8ba4\u4e3a\u5728\u5b9e\u9645\u7cfb\u7edf\u4e2d\u662f\u53ef\u4ee5\u901a\u8fc7\u597d\u7684\u8fd0\u7ef4\u65b9\u5f0f\u907f\u514d\u5927\u7684\u65f6\u949f\u8df3\u8dc3\u7684\u3002<\/strong><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366521663c21ac05a973.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u6240\u4ee5\u5230\u8fd9\u91cc\uff0c\u4e24\u4f4d\u795e\u4ed9\u597d\u50cf\u53c8\u8fbe\u5230\u4e86\u4e00\u4e2a\u5e73\u8861\uff0c\u5b9e\u73b0\u4e86\u4e89\u8bba\u4e0a\u7684\u6c42\u540c\u5b58\u5f02\u3002<\/p>\n<h2>\u6253\u67b6\u603b\u7ed3<\/h2>\n<p>\u4f5c\u4e3a\u4e00\u4e2a\u4e92\u8054\u7f51\u884c\u4e1a\u7684\u4ece\u4e1a\u8005\uff0c\u4e5f\u662f\u5206\u5e03\u5f0f\u7cfb\u7edf\u7684\u4f7f\u7528\u8005\uff0c\u8bfb\u5b8c\u4ed6\u4eec\u7684\u6587\u7ae0\u4ee5\u53ca\u7531\u6b64\u6587\u7ae0\u884d\u751f\u51fa\u6765\u7684\u77e5\u8bc6\u70b9\u540e\uff0c\u53d7\u76ca\u826f\u591a\uff0c\u4e8e\u662f\u5199\u4e0b\u6b64\u6587\u4f5c\u4e3a\u5b66\u4e60\u603b\u7ed3\uff0c\u4e5f\u4e0e\u5927\u5bb6\u5206\u4eab\u3002\u672c\u6587\u8fd8\u6709\u5f88\u591a\u4e0d\u8db3\u4e4b\u5904\uff0c\u8fd8\u8bf7\u5404\u4f4d\u6d77\u6db5\u3002<\/p>\n<p>\u5982\u540c\u6587\u7ae0\u5f00\u7bc7\u8bf4\u7684\uff0c\u8fd9\u573a\u4e89\u8bba\u6ca1\u6709\u6700\u540e\u7684\u8d62\u5bb6\u3002\u5f88\u660e\u663e\u5377\u53d1\u54e5\u662f\u6ca1\u6709\u8bf4\u670d\u957f\u53d1\u54e5\u7684\uff0c\u56e0\u4e3a\u5728\u957f\u53d1\u54e52017\u5e74\u51fa\u7248\u7684\u300a\u6570\u636e\u5bc6\u96c6\u578b\u5e94\u7528\u7cfb\u7edf\u8bbe\u8ba1\u300b\u4e00\u4e66\u4e2d\uff0c\u4e13\u95e8\u6709\u4e00\u5c0f\u8282\u7684\u540d\u79f0\u53eb\u505a\uff1a<strong>\u4e0d\u53ef\u9760\u7684\u65f6\u949f<\/strong><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366521663c21ac0a9165.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u5176\u5b9e\u5728\u8fd9\u573a\u4e89\u8bba\u7684\u6700\u540e\uff0c\u957f\u53d1\u54e5\u5bf9\u8fd9\u573a\u4e89\u8bba\u8fdb\u884c\u4e86\u4e00\u4e2a\u975e\u5e38\u611f\u6027\u7684\u603b\u7ed3\uff0c\u4ed6\u8bf4\uff1a<\/p>\n<p>\u4e0b\u9762\u7ffb\u8bd1\u6765\u81ea\uff1ahttps:\/\/www.jianshu.com\/p\/dd66bdd18a56<\/p>\n<p>\u5bf9\u6211\u6765\u8bf4\u6700\u91cd\u8981\u7684\u4e00\u70b9\u5728\u4e8e\uff1a<strong>\u6211\u5e76\u4e0d\u5728\u4e4e\u5728\u8fd9\u573a\u8fa9\u8bba\u4e2d\u8c01\u5bf9\u8c01\u9519 &amp;mdash;&amp;mdash; \u6211\u53ea\u5173\u5fc3\u4ece\u5176\u4ed6\u4eba\u7684\u5de5\u4f5c\u4e2d\u5b66\u5230\u7684\u4e1c\u897f\uff0c\u4ee5\u4fbf\u6211\u4eec\u80fd\u591f\u907f\u514d\u91cd\u8e48\u8986\u8f99\uff0c\u5e76\u8ba9\u672a\u6765\u66f4\u52a0\u7f8e\u597d\u3002\u524d\u4eba\u5df2\u7ecf\u4e3a\u6211\u4eec\u521b\u9020\u51fa\u4e86\u8bb8\u591a\u4f1f\u5927\u7684\u6210\u679c\uff1a\u7ad9\u5728\u5de8\u4eba\u7684\u80a9\u8180\u4e0a\uff0c\u6211\u4eec\u5f97\u4ee5\u6784\u5efa\u66f4\u68d2\u7684\u8f6f\u4ef6\u3002<\/strong><\/p>\n<p><strong>\u5bf9\u4e8e\u4efb\u4f55\u60f3\u6cd5\uff0c\u52a1\u5fc5\u8981\u8be6\u52a0\u68c0\u9a8c\uff0c\u901a\u8fc7\u8bba\u8bc1\u4ee5\u53ca\u68c0\u67e5\u5b83\u4eec\u662f\u5426\u7ecf\u5f97\u4f4f\u522b\u4eba\u7684\u8be6\u7ec6\u5ba1\u67e5\u3002\u90a3\u662f\u5b66\u4e60\u8fc7\u7a0b\u7684\u4e00\u90e8\u5206\u3002\u4f46\u76ee\u6807\u5e94\u8be5\u662f\u4e3a\u4e86\u83b7\u5f97\u77e5\u8bc6\uff0c\u800c\u4e0d\u5e94\u8be5\u662f\u4e3a\u4e86\u8bf4\u670d\u522b\u4eba\u76f8\u4fe1\u4f60\u81ea\u5df1\u662f\u5bf9\u7684\u3002\u6709\u65f6\u5019\uff0c\u90a3\u53ea\u4e0d\u8fc7\u610f\u5473\u7740\u505c\u4e0b\u6765\uff0c\u597d\u597d\u5730\u60f3\u4e00\u60f3\u3002<\/strong><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366521763c21ac116fff.jpg\" class=\"aligncenter\"> <\/p>\n<h2>\u5403\u74dc\u7f51\u53cb\u7684\u6536\u83b7<\/h2>\n<p>\u8fd9\u91cc\u7684\u5403\u74dc\u7f51\u53cb\u5c31\u662f\u6307\u6211\u5566\u3002<\/p>\n<p>\u5199\u8fd9\u7bc7\u6587\u7ae0\u6211\u7684\u6536\u83b7\u8fd8\u662f\u633a\u5927\u7684\uff0c\u9996\u5148\u6211\u4e70\u4e86\u957f\u53d1\u54e5\u7684\u300a\u6570\u636e\u5bc6\u96c6\u578b\u5e94\u7528\u7cfb\u7edf\u8bbe\u8ba1\u300b\u4e00\u4e66\uff0c\u8bfb\u4e86\u51e0\u8282\uff0c\u53d1\u73b0\u8fd9\u4e66\u662f\u771f\u7684\u4e0d\u9519\uff0c\u8c46\u74e3\u8bc4\u52069.6\uff0c\u63a8\u8350\u3002<\/p>\n<p>\u5176\u6b21\u5b8c\u6210\u4e86\u8fd9\u5468\u7684\u5468\u66f4\u4efb\u52a1\uff0c\u867d\u7136\u5199\u7684\u5f88\u8270\u96be\uff0c\u4ece\u5468\u516d\u4e2d\u5348\uff0c\u5199\u5230\u5468\u65e5\u51cc\u66683\u70b9\u3002\u3002\u3002<\/p>\n<p>\u7136\u540e\u8fd8\u5403\u5230\u4e86\u53e6\u5916\u7684\u4e00\u4e2a\u74dc\uff0c\u53ef\u8c13\u662f\u74dc\u4e2d\u74dc\u3002<\/p>\n<p>\u8fd9\u5468\u4e94\u7684\u65f6\u5019 Redis \u5b98\u7f51\u4e0d\u662f\u51fa\u73b0\u4e86\u77ed\u6682\u7684\u5b95\u673a\u5417\uff0c\u5b95\u673a\u5176\u5b9e\u4e5f\u6ca1\u5565\u7a00\u5947\u7684\uff0c\u4f46\u662f\u9875\u9762\u4e0a\u663e\u793a\u7684\u662f\u8fde\u4e0d\u4e0a Redis \u3002\u8fd9\u5c31\u6709\u70b9\u610f\u601d\u4e86\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366521763c21ac15edf9.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u6211\u5728\u5199\u8fd9\u7bc7\u6587\u7ae0\u7684\u65f6\u5019\uff0c\u5728\u5377\u53d1\u54e5\u7684\u67d0\u793e\u4ea4\u5e73\u53f0\u4e0a\u53d1\u73b0\u4e86\u8fd9\u4e2a\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230114\/167366521763c21ac1a4784.jpg\" class=\"aligncenter\"> <\/p>\n<p>\u6211\u5173\u5fc3\u7684\u5e76\u4e0d\u662f OOM\uff0c\u800c\u662f\u5377\u53d1\u54e5\u5c45\u7136\u8ba9 Redis \u5b98\u7f51\u8fd0\u884c\u5728\u4e00\u53f0\u4e00\u4e2a\u6708\u4ec5 5 \u7f8e\u5143\uff0c\u5185\u5b58\u53ea\u6709 1G 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