{"id":201618,"date":"2025-05-10T11:18:20","date_gmt":"2025-05-10T03:18:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201618\/"},"modified":"2025-05-10T11:18:20","modified_gmt":"2025-05-10T03:18:20","slug":"%e5%9c%a8redis%e4%b8%ad%e9%98%b2%e6%ad%a2%e6%b6%88%e6%81%af%e4%b8%a2%e5%a4%b1%e7%9a%84%e6%9c%ba%e5%88%b6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201618\/","title":{"rendered":"\u5728redis\u4e2d\u9632\u6b62\u6d88\u606f\u4e22\u5931\u7684\u673a\u5236"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u5728redis\u4e2d\u9632\u6b62\u6d88\u606f\u4e22\u5931\u7684\u673a\u5236<\/h1>\n<p><span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u6211\u4eec\u8981\u52aa\u529b\u5b66\u4e60\u5566\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765<span style=\"color: #FF6600;font-family:\">\u300a\u5728redis\u4e2d\u9632\u6b62\u6d88\u606f\u4e22\u5931\u7684\u673a\u5236\u300b<\/span>\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4e0b\u6587\u4e2d\u7684\u5185\u5bb9\u6211\u4eec\u4e3b\u8981\u4f1a\u6d89\u53ca\u5230<span style=\"color: #FF6600;font-family:\">Redis\u6d88\u606f\u3001\u4e22\u5931<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5728\u9605\u8bfb\u672c\u6587\u8fc7\u7a0b\u4e2d\u6709\u9047\u5230\u4e0d\u6e05\u695a\u7684\u5730\u65b9\uff0c\u6b22\u8fce\u7559\u8a00\u5440\uff01\u6211\u4eec\u4e00\u8d77\u8ba8\u8bba\uff0c\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n<h2>\u5982\u4f55\u5728redis\u4e2d\u9632\u6b62\u6d88\u606f\u4e22\u5931<\/h2>\n<h3>\u524d\u8a00<\/h3>\n<p>\u5728\u9879\u76ee\u4e2d\uff0c\u7531\u4e8e\u7f51\u7edc\u95ee\u9898\uff0c\u6211\u4eec\u5f88\u96be\u4fdd\u8bc1\u751f\u4ea7\u8005\u53d1\u9001\u7684\u6d88\u606f\u80fd100%\u5230\u8fbe\u6d88\u606f\u961f\u5217\u670d\u52a1\u5668\uff0c\u4e5f\u5c31\u662f\u8bf4\u6709\u6d88\u606f\u4e22\u5931\u7684\u53ef\u80fd\u6027\uff0c\u56e0 \u6b64\uff0c\u751f\u4ea7\u8005\u5c31\u5fc5\u987b\u5177\u6709<strong>\u6d88\u606f\u4e22\u5931\u68c0\u6d4b\u548c\u91cd\u53d1\u673a\u5236<\/strong>\uff0c\u4e5f\u5c31\u662f\u6211\u4eec\u5e38\u8bf4\u7684\u6d88\u606f\u961f\u5217\u7684\u4e8b\u7269\u673a\u5236\u3002<\/p>\n<p><strong>\u4e0d\u80fd\u628a\u53ef\u9760\u6027\u7684\u4fdd\u8bc1\u5168\u90e8\u4ea4\u7ed9TCP\uff0cTCP\u53ea\u4fdd\u8bc1\u4e86\u4f20\u8f93\u5c42\u7684\u53ef\u9760\u4f20\u8f93\uff0c\u4f46\u662f\u65e0\u6cd5\u4fdd\u8bc1\u4e0e\u5e94\u7528\u5c42\u7684\u4ea4\u4e92\u662f\u5426\u51fa\u9519 TCP\u65e0\u6cd5\u7ed9\u5e94\u7528\u5c42\u4efb\u4f55\u53cd\u9988\uff0c\u56e0\u6b64\u5fc5\u987b\u5728\u5e94\u7528\u5c42\u5904\u7406\u5dee\u9519<\/strong><\/p>\n<h3>\u540c\u6b65\u7684\u4e8b\u52a1\u2014\u2014\u505c\u6b62\u7b49\u5f85<\/h3>\n<p>\u6240\u8c13\u505c\u6b62\u7b49\u5f85\u534f\u8bae\u5c31\u662f\u6ca1\u53d1\u9001\u5b8c\u4e00\u7ec4\u6570\u636e\u540e\uff0c\u7b49\u5f85\u5bf9\u65b9\u786e\u8ba4\u5e76\u4e14\u6536\u5230\u786e\u8ba4\u540e\uff0c\u518d\u53d1\u9001\u4e0b\u4e00\u7ec4\u6570\u636e\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167729043563f96bc3f158a.jpg\" class=\"aligncenter\"><\/p>\n<h3>\u540c\u6b65\u7684\u4e8b\u52a1\u2014\u2014\u8fde\u7eedARQ<\/h3>\n<p>\u7c7b\u4f3c\u4e8eTCP\u7684\u6ed1\u52a8\u7a97\u53e3\u6a21\u578b<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167729043663f96bc43643e.jpg\" class=\"aligncenter\"><\/p>\n<h3>\u5f02\u6b65\u7684\u4e8b\u52a1\u2014\u2014\u56de\u8c03\u673a\u5236<\/h3>\n<p>\u751f\u4ea7\u8005\u5728\u53d1\u9001\u6d88\u606f\u7684\u65f6\u5019\uff0c\u6ce8\u518c\u4e00\u4e2a\u56de\u8c03\u51fd\u6570\uff0c\u8fd9\u6837\u751f\u4ea7\u8005\u4fbf\u4e0d\u7528\u505c\u4e0b\u6765\u7b49\u5f85\u786e\u8ba4\u4e86\uff0c\u800c\u662f\u53ef\u4ee5\u4e00\u76f4\u6301\u7eed\u53d1\u9001\u6d88\u606f\uff0c\u5f53\u6d88\u606f\u5230\u8fbe\u6d88\u606f\u961f\u5217\u670d\u52a1\u5668\u7684\u65f6\u5019\uff0c\u670d\u52a1\u5668\u4fbf\u4f1a\u8c03\u7528\u751f\u4ea7\u8005\u6ce8\u518c\u7684\u56de\u8c03\u51fd\u6570\uff0c\u544a\u77e5\u751f\u4ea7\u8005\u6d88\u606f\u53d1\u9001\u6210\u529f\u4e86\u8fd8\u662f\u5931\u8d25\u4e86\uff0c\u8fdb\u800c\u505a\u8fdb\u4e00\u6b65\u7684\u5904\u7406\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86\u5e76\u53d1\u91cf\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230225\/167729043663f96bc472291.png\" class=\"aligncenter\"><\/p>\n<h3>\u6d88\u606f\u7684\u5e42\u7b49\u5904\u7406<\/h3>\n<p>\u7531\u4e8e\u7f51\u7edc\u539f\u56e0\uff0c\u751f\u4ea7\u8005\u53ef\u80fd\u4f1a\u91cd\u590d\u53d1\u9001\u6d88\u606f\uff0c\u56e0\u6b64\u6d88\u8d39\u8005\u65b9\u5fc5\u987b\u505a\u6d88\u606f\u7684\u5e42\u7b49\u5904\u7406\uff0c\u5e38\u7528\u7684\u89e3\u51b3\u65b9\u6848\u6709:<\/p>\n<ul>\n<li><strong>\u67e5\u8be2\u64cd\u4f5c<\/strong>\uff1a\u67e5\u8be2\u4e00\u6b21\u548c\u67e5\u8be2\u591a\u6b21\uff0c\u5728\u6570\u636e\u4e0d\u53d8\u7684\u60c5\u51b5\u4e0b\uff0c\u67e5\u8be2\u7ed3\u679c\u662f\u4e00\u6837\u7684\u3002select\u662f\u5929\u7136\u7684\u5e42\u7b49\u64cd\u4f5c;<\/li>\n<li><strong>\u5220\u9664\u64cd\u4f5c<\/strong>\uff1a\u5220\u9664\u64cd\u4f5c\u4e5f\u662f\u5e42\u7b49\u7684\uff0c\u5220\u9664\u4e00\u6b21\u548c\u591a\u6b21\u5220\u9664\u90fd\u662f\u628a\u6570\u636e\u5220\u9664\u3002(\u6ce8\u610f\u53ef\u80fd\u8fd4\u56de\u7ed3\u679c\u4e0d\u4e00\u6837\uff0c\u5220\u9664\u7684\u6570\u636e\u4e0d\u5b58\u5728\uff0c\u8fd4\u56de0\uff0c\u5220\u9664\u7684\u6570\u636e\u591a\u6761\uff0c\u8fd4\u56de\u7ed3\u679c\u591a\u4e2a) ;<\/li>\n<li><strong>\u552f\u4e00\u7d22\u5f15\uff0c\u9632\u6b62\u65b0\u589e\u810f\u6570\u636e<\/strong>\u3002\u6bd4\u5982:\u652f\u4ed8\u5b9d\u7684\u8d44\u91d1\u8d26\u6237\uff0c\u652f\u4ed8\u5b9d\u4e5f\u6709\u7528\u6237\u8d26\u6237\uff0c\u6bcf\u4e2a\u7528\u6237\u53ea\u80fd\u6709\u4e00\u4e2a\u8d44\u91d1\u8d26\u6237\uff0c\u600e\u4e48\u9632\u6b62\u7ed9\u7528\u6237\u521b\u5efa\u8d44\u91d1\u8d26\u6237\u591a\u4e2a\uff0c\u90a3\u4e48\u7ed9\u8d44\u91d1\u8d26\u6237\u8868\u4e2d\u7684\u7528\u6237ID\u52a0\u552f\u4e00\u7d22\u5f15\uff0c\u6240\u4ee5\u4e00\u4e2a\u7528\u6237\u65b0\u589e\u6210\u529f \u4e00\u4e2a\u8d44\u91d1\u8d26\u6237\u8bb0\u5f55\u3002\u8981\u70b9:\u552f\u4e00\u7d22\u5f15\u6216\u552f\u4e00\u7ec4\u5408\u7d22\u5f15\u6765\u9632\u6b62\u65b0\u589e\u6570\u636e\u5b58\u5728\u810f\u6570\u636e(\u5f53\u8868\u5b58\u5728\u552f\u4e00\u7d22\u5f15\uff0c\u5e76\u53d1 \u65f6\u65b0\u589e\u62a5\u9519\u65f6\uff0c\u518d\u67e5\u8be2\u4e00\u6b21\u5c31\u53ef\u4ee5\u4e86\uff0c\u6570\u636e\u5e94\u8be5\u5df2\u7ecf\u5b58\u5728\u4e86\uff0c\u8fd4\u56de\u7ed3\u679c\u5373\u53ef);<\/li>\n<li><strong>token\u673a\u5236\uff0c\u9632\u6b62\u9875\u9762\u91cd\u590d\u63d0\u4ea4<\/strong>\u3002\u4e1a\u52a1\u8981\u6c42: \u9875\u9762\u7684\u6570\u636e\u53ea\u80fd\u88ab\u70b9\u51fb\u63d0\u4ea4\u4e00\u6b21;\u53d1\u751f\u539f\u56e0: \u7531\u4e8e\u91cd\u590d\u70b9\u51fb\u6216 \u8005\u7f51\u7edc\u91cd\u53d1\uff0c\u6216\u8005nginx\u91cd\u53d1\u7b49\u60c5\u51b5\u4f1a\u5bfc\u81f4\u6570\u636e\u88ab\u91cd\u590d\u63d0\u4ea4;\u89e3\u51b3\u529e\u6cd5: \u96c6\u7fa4\u73af\u5883\u91c7\u7528token\u52a0redis(redis\u5355 \u7ebf\u7a0b\u7684\uff0c\u5904\u7406\u9700\u8981\u6392\u961f);\u5355JVM\u73af\u5883:\u91c7\u7528token\u52a0redis\u6216token\u52a0jvm\u5185\u5b58\u3002\u5904\u7406\u6d41\u7a0b:1. \u6570\u636e\u63d0\u4ea4\u524d\u8981\u5411 \u670d\u52a1\u7684\u7533\u8bf7token\uff0ctoken\u653e\u5230redis\u6216jvm\u5185\u5b58\uff0ctoken\u6709\u6548\u65f6\u95f4;2. \u63d0\u4ea4\u540e\u540e\u53f0\u6821\u9a8ctoken\uff0c\u540c\u65f6\u5220\u9664 token\uff0c\u751f\u6210\u65b0\u7684token\u8fd4\u56de\u3002token\u7279\u70b9:\u8981\u7533\u8bf7\uff0c\u4e00\u6b21\u6709\u6548\u6027\uff0c\u53ef\u4ee5\u9650\u6d41\u3002\u6ce8\u610f:redis\u8981\u7528\u5220\u9664\u64cd\u4f5c\u6765\u5224 \u65adtoken\uff0c\u5220\u9664\u6210\u529f\u4ee3\u8868token\u6821\u9a8c\u901a\u8fc7\uff0c\u5982\u679c\u7528select+delete\u6765\u6821\u9a8ctoken\uff0c\u5b58\u5728\u5e76\u53d1\u95ee\u9898\uff0c\u4e0d\u5efa\u8bae\u4f7f\u7528;<\/li>\n<li><strong>\u60b2\u89c2\u9501<\/strong>\u2014\u2014\u83b7\u53d6\u6570\u636e\u7684\u65f6\u5019\u52a0\u9501\u83b7\u53d6\u3002select * from table_xxx where id=\u2018xxx\u2019 for update; \u6ce8\u610f:id\u5b57\u6bb5\u4e00 \u5b9a\u662f\u4e3b\u952e\u6216\u8005\u552f\u4e00\u7d22\u5f15\uff0c\u4e0d\u7136\u662f\u9501\u8868\uff0c\u4f1a\u6b7b\u4eba\u7684\u60b2\u89c2\u9501\u4f7f\u7528\u65f6\u4e00\u822c\u4f34\u968f\u4e8b\u52a1\u4e00\u8d77\u4f7f\u7528\uff0c\u6570\u636e\u9501\u5b9a\u65f6\u95f4\u53ef\u80fd\u4f1a \u5f88\u957f\uff0c\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u9009\u7528;<\/li>\n<li><strong>\u4e50\u89c2\u9501<\/strong>\u2014\u2014\u4e50\u89c2\u9501\u53ea\u662f\u5728\u66f4\u65b0\u6570\u636e\u90a3\u4e00\u523b\u9501\u8868\uff0c\u5176\u4ed6\u65f6\u95f4\u4e0d\u9501\u8868\uff0c\u6240\u4ee5\u76f8\u5bf9\u4e8e\u60b2\u89c2\u9501\uff0c\u6548\u7387\u66f4\u9ad8\u3002\u4e50\u89c2\u9501\u7684 \u5b9e\u73b0\u65b9\u5f0f\u591a\u79cd\u591a\u6837\u53ef\u4ee5\u901a\u8fc7version\u6216\u8005\u5176\u4ed6\u72b6\u6001\u6761\u4ef6:1. \u901a\u8fc7\u7248\u672c\u53f7\u5b9e\u73b0update table_xxx set name=#name#,version=version+1 where version=#version#\u5982\u4e0b\u56fe(\u6765\u81ea\u7f51\u4e0a);2. \u901a\u8fc7\u6761\u4ef6\u9650\u5236 update table_xxx set avai_amount=avai_amount-#subAmount# where avai_amount-#subAmount# &gt;= 0\u8981\u6c42: quality-#subQuality# &gt;= \uff0c\u8fd9\u4e2a\u60c5\u666f\u9002\u5408\u4e0d\u7528\u7248\u672c\u53f7\uff0c\u53ea\u66f4\u65b0\u662f\u505a\u6570\u636e\u5b89\u5168\u6821\u9a8c\uff0c\u9002\u5408\u5e93\u5b58\u6a21\u578b\uff0c\u6263\u4efd\u989d\u548c \u56de\u6eda\u4efd\u989d\uff0c\u6027\u80fd\u66f4\u9ad8;<\/li>\n<li><strong>\u5206\u5e03\u5f0f\u9501<\/strong>\u2014\u2014\u8fd8\u662f\u62ff\u63d2\u5165\u6570\u636e\u7684\u4f8b\u5b50\uff0c\u5982\u679c\u662f\u5206\u5e03\u662f\u7cfb\u7edf\uff0c\u6784\u5efa\u5168\u5c40\u552f\u4e00\u7d22\u5f15\u6bd4\u8f83\u56f0\u96be\uff0c\u4f8b\u5982\u552f\u4e00\u6027\u7684\u5b57\u6bb5\u6ca1\u6cd5 \u786e\u5b9a\uff0c\u8fd9\u65f6\u5019\u53ef\u4ee5\u5f15\u5165\u5206\u5e03\u5f0f\u9501\uff0c\u901a\u8fc7\u7b2c\u4e09\u65b9\u7684\u7cfb\u7edf(redis\u6216zookeeper)\uff0c\u5728\u4e1a\u52a1\u7cfb\u7edf\u63d2\u5165\u6570\u636e\u6216\u8005\u66f4\u65b0\u6570\u636e\uff0c\u83b7 \u53d6\u5206\u5e03\u5f0f\u9501\uff0c\u7136\u540e\u505a\u64cd\u4f5c\uff0c\u4e4b\u540e\u91ca\u653e\u9501\uff0c\u8fd9\u6837\u5176\u5b9e\u662f\u628a\u591a\u7ebf\u7a0b\u5e76\u53d1\u7684\u9501\u7684\u601d\u8def\uff0c\u5f15\u5165\u591a\u591a\u4e2a\u7cfb\u7edf\uff0c\u4e5f\u5c31\u662f\u5206\u5e03\u5f0f\u7cfb \u7edf\u4e2d\u5f97\u89e3\u51b3\u601d\u8def\u3002\u8981\u70b9:\u67d0\u4e2a\u957f\u6d41\u7a0b\u5904\u7406\u8fc7\u7a0b\u8981\u6c42\u4e0d\u80fd\u5e76\u53d1\u6267\u884c\uff0c\u53ef\u4ee5\u5728\u6d41\u7a0b\u6267\u884c\u4e4b\u524d\u6839\u636e\u67d0\u4e2a\u6807\u5fd7(\u7528\u6237ID+\u540e\u7f00 \u7b49)\u83b7\u53d6\u5206\u5e03\u5f0f\u9501\uff0c\u5176\u4ed6\u6d41\u7a0b\u6267\u884c\u65f6\u83b7\u53d6\u9501\u5c31\u4f1a\u5931\u8d25\uff0c\u4e5f\u5c31\u662f\u540c\u4e00\u65f6\u95f4\u8be5\u6d41\u7a0b\u53ea\u80fd\u6709\u4e00\u4e2a\u80fd\u6267\u884c\u6210\u529f\uff0c\u6267\u884c\u5b8c\u6210 \u540e\uff0c\u91ca\u653e\u5206\u5e03\u5f0f\u9501(\u5206\u5e03\u5f0f\u9501\u8981\u7b2c\u4e09\u65b9\u7cfb\u7edf\u63d0\u4f9b);<\/li>\n<li><strong>select + insert\u2014\u2014\u5e76\u53d1\u4e0d\u9ad8\u7684\u540e\u53f0\u7cfb\u7edf<\/strong>\uff0c\u6216\u8005\u4e00\u4e9b\u4efb\u52a1JOB\uff0c\u4e3a\u4e86\u652f\u6301\u5e42\u7b49\uff0c\u652f\u6301\u91cd\u590d\u6267\u884c\uff0c\u7b80\u5355\u7684\u5904\u7406\u65b9\u6cd5 \u662f\uff0c\u5148\u67e5\u8be2\u4e0b\u4e00\u4e9b\u5173\u952e\u6570\u636e\uff0c\u5224\u65ad\u662f\u5426\u5df2\u7ecf\u6267\u884c\u8fc7\uff0c\u5728\u8fdb\u884c\u4e1a\u52a1\u5904\u7406\uff0c\u5c31\u53ef\u4ee5\u4e86\u3002\u6ce8\u610f:\u6838\u5fc3\u9ad8\u5e76\u53d1\u6d41\u7a0b\u4e0d\u8981\u7528\u8fd9 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