{"id":156267,"date":"2024-11-02T19:51:23","date_gmt":"2024-11-02T11:51:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/156267\/"},"modified":"2024-11-02T19:51:24","modified_gmt":"2024-11-02T11:51:24","slug":"%e5%88%86%e5%b8%83%e5%bc%8f-redis-%e9%9b%86%e7%be%a4-id-%e5%91%bd%e5%90%8d%e7%ad%96%e7%95%a5%ef%bc%88redis-%e9%9b%86%e7%be%a4-id-%e5%88%86%e5%b8%83%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/156267\/","title":{"rendered":"\u5206\u5e03\u5f0f Redis \u96c6\u7fa4 ID \u547d\u540d\u7b56\u7565\uff08Redis \u96c6\u7fa4 ID \u5206\u5e03\uff09"},"content":{"rendered":"<h1 id=\"%e5%88%86%e5%b8%83%e5%bc%8f-redis-%e9%9b%86%e7%be%a4-id-%e5%91%bd%e5%90%8d%e7%ad%96%e7%95%a5%ef%bc%88redis-%e9%9b%86%e7%be%a4-id-%e5%88%86%e5%b8%83%ef%bc%89-fKEenVYZjw\">\u5206\u5e03\u5f0f Redis \u96c6\u7fa4 ID \u547d\u540d\u7b56\u7565\uff08Redis \u96c6\u7fa4 ID \u5206\u5e03\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u5206\u5e03\u5f0f\u7cfb\u7d71\u4e2d\uff0cRedis 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\u547d\u540d\u7b56\u7565\uff1a<\/p>\n<ul>\n<li><strong>\u524d\u7db4\u547d\u540d\u6cd5\uff1a<\/strong>\u4f7f\u7528\u7279\u5b9a\u7684\u524d\u7db4\u4f86\u6a19\u8b58\u4e0d\u540c\u985e\u578b\u7684\u6578\u64da\u3002\u4f8b\u5982\uff0c\u5c0d\u65bc\u7528\u6236\u6578\u64da\uff0c\u53ef\u4ee5\u4f7f\u7528 &#8220;user:&#8221; \u4f5c\u70ba\u524d\u7db4\uff0c\u9019\u6a23\u6240\u6709\u7528\u6236\u76f8\u95dc\u7684\u9375\u90fd\u6703\u4ee5 &#8220;user:&#8221; \u958b\u982d\u3002<\/li>\n<li><strong>\u5206\u5c64\u547d\u540d\u6cd5\uff1a<\/strong>\u6839\u64da\u6578\u64da\u7684\u5c64\u7d1a\u7d50\u69cb\u9032\u884c\u547d\u540d\u3002\u4f8b\u5982\uff0c\u5c0d\u65bc\u4e00\u500b\u96fb\u5b50\u5546\u52d9\u5e73\u53f0\uff0c\u53ef\u4ee5\u4f7f\u7528 &#8220;product:category:productId&#8221; \u7684\u683c\u5f0f\u4f86\u8868\u793a\u7522\u54c1\u3002<\/li>\n<li><strong>\u6642\u9593\u6233\u547d\u540d\u6cd5\uff1a<\/strong>\u5728 ID \u4e2d\u5305\u542b\u6642\u9593\u6233\uff0c\u4ee5\u4fbf\u65bc\u8ffd\u8e64\u6578\u64da\u7684\u751f\u6210\u6642\u9593\u3002\u4f8b\u5982\uff0c&#8221;log:20231001:12345&#8243; \u53ef\u4ee5\u8868\u793a 2023 \u5e74 10 \u6708 1 \u65e5\u751f\u6210\u7684\u65e5\u8a8c\u3002<\/li>\n<\/ul>\n<h2 id=\"redis-%e9%9b%86%e7%be%a4-id-%e7%9a%84%e5%88%86%e5%b8%83-fKEenVYZjw\">Redis \u96c6\u7fa4 ID \u7684\u5206\u5e03<\/h2>\n<p>\u5728 Redis \u96c6\u7fa4\u4e2d\uff0cID \u7684\u5206\u5e03\u4e3b\u8981\u4f9d\u8cf4\u65bc\u54c8\u5e0c\u69fd\u7684\u5206\u914d\u3002Redis \u96c6\u7fa4\u5c07 16384 \u500b\u54c8\u5e0c\u69fd\u5747\u52fb\u5206\u914d\u5230\u5404\u500b\u7bc0\u9ede\u4e0a\u3002\u7576\u4e00\u500b\u9375\u88ab\u63d2\u5165\u6642\uff0cRedis \u6703\u8a08\u7b97\u8a72\u9375\u7684\u54c8\u5e0c\u503c\uff0c\u7136\u5f8c\u5c07\u5176\u6620\u5c04\u5230\u76f8\u61c9\u7684\u54c8\u5e0c\u69fd\u3002\u9019\u6a23\u7684\u8a2d\u8a08\u4f7f\u5f97\u6578\u64da\u80fd\u5920\u5728\u96c6\u7fa4\u4e2d\u5747\u52fb\u5206\u5e03\uff0c\u5f9e\u800c\u907f\u514d\u4e86\u67d0\u4e9b\u7bc0\u9ede\u7684\u904e\u8f09\u3002<\/p>\n<h3 id=\"%e5%93%88%e5%b8%8c%e6%a7%bd%e7%9a%84%e8%a8%88%e7%ae%97-fKEenVYZjw\">\u54c8\u5e0c\u69fd\u7684\u8a08\u7b97<\/h3>\n<p>Redis \u4f7f\u7528 CRC16 \u7b97\u6cd5\u4f86\u8a08\u7b97\u9375\u7684\u54c8\u5e0c\u503c\uff0c\u7136\u5f8c\u5c07\u5176\u6620\u5c04\u5230 0 \u5230 16383 \u7684\u7bc4\u570d\u5167\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>function getHashSlot(key) {\n    const hash = crc16(key);\n    return hash % 16384;\n}\n<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c55\u793a\u4e86\u5982\u4f55\u8a08\u7b97\u4e00\u500b\u9375\u7684\u54c8\u5e0c\u69fd\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6839\u64da\u9019\u500b\u65b9\u6cd5\u4f86\u78ba\u5b9a\u6578\u64da\u7684\u5b58\u5132\u4f4d\u7f6e\u3002<\/p>\n<h2 id=\"%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-fKEenVYZjw\">\u6700\u4f73\u5be6\u8e10<\/h2>\n<p>\u5728\u8a2d\u8a08 Redis \u96c6\u7fa4\u7684 ID \u547d\u540d\u7b56\u7565\u6642\uff0c\u958b\u767c\u8005\u61c9\u8003\u616e\u4ee5\u4e0b\u6700\u4f73\u5be6\u8e10\uff1a<\/p>\n<ul>\n<li>\u4fdd\u6301 ID \u7684\u7c21\u6f54\u6027\u548c\u53ef\u8b80\u6027\uff0c\u907f\u514d\u4f7f\u7528\u904e\u65bc\u8907\u96dc\u7684\u547d\u540d\u898f\u5247\u3002<\/li>\n<li>\u78ba\u4fdd ID \u7684\u552f\u4e00\u6027\uff0c\u4ee5\u9632\u6b62\u6578\u64da\u885d\u7a81\u3002<\/li>\n<li>\u5b9a\u671f\u6aa2\u67e5\u548c\u512a\u5316 ID \u7684\u547d\u540d\u7b56\u7565\uff0c\u4ee5\u9069\u61c9\u696d\u52d9\u9700\u6c42\u7684\u8b8a\u5316\u3002<\/li>\n<\/ul>\n<h2 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