{"id":128623,"date":"2024-10-26T15:32:16","date_gmt":"2024-10-26T07:32:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/128623\/"},"modified":"2024-10-26T15:32:17","modified_gmt":"2024-10-26T07:32:17","slug":"redis%e5%af%a6%e7%8f%be%e5%93%88%e5%b8%8c%e6%a7%bd%ef%bc%8c%e6%89%93%e7%a0%b4%e6%80%a7%e8%83%bd%e7%93%b6%e9%a0%b8%ef%bc%88redis%e7%9a%84%e5%93%88%e8%a5%bf%e6%a7%bd%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/128623\/","title":{"rendered":"Redis\u5be6\u73fe\u54c8\u5e0c\u69fd\uff0c\u6253\u7834\u6027\u80fd\u74f6\u9838\uff08redis\u7684\u54c8\u897f\u69fd\uff09"},"content":{"rendered":"<h1 id=\"redis%e5%af%a6%e7%8f%be%e5%93%88%e5%b8%8c%e6%a7%bd%ef%bc%8c%e6%89%93%e7%a0%b4%e6%80%a7%e8%83%bd%e7%93%b6%e9%a0%b8-uquoFIryXq\">Redis\u5be6\u73fe\u54c8\u5e0c\u69fd\uff0c\u6253\u7834\u6027\u80fd\u74f6\u9838<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u6027\u80fd\u662f\u4efb\u4f55\u61c9\u7528\u7a0b\u5e8f\u6210\u529f\u7684\u95dc\u9375\u56e0\u7d20\u4e4b\u4e00\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u5feb\u901f\u8b80\u53d6\u548c\u5beb\u5165\u7684\u60c5\u6cc1\u4e0b\u3002\u672c\u6587\u5c07\u63a2\u8a0eRedis\u4e2d\u7684\u54c8\u5e0c\u69fd\uff08Hash Slot\uff09\u6a5f\u5236\uff0c\u4e26\u5206\u6790\u5176\u5982\u4f55\u5e6b\u52a9\u6253\u7834\u6027\u80fd\u74f6\u9838\u3002<\/p>\n<h2 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id=\"%e5%93%88%e5%b8%8c%e6%a7%bd%e7%9a%84%e8%a8%88%e7%ae%97-uquoFIryXq\">\u54c8\u5e0c\u69fd\u7684\u8a08\u7b97<\/h3>\n<p>\u5728Redis\u4e2d\uff0c\u54c8\u5e0c\u69fd\u7684\u8a08\u7b97\u662f\u901a\u904e\u4ee5\u4e0b\u516c\u5f0f\u5be6\u73fe\u7684\uff1a<\/p>\n<pre><code>hash_slot = CRC16(key) mod 16384<\/code><\/pre>\n<p>\u9019\u88e1\uff0c<code>CRC16<\/code>\u662f\u4e00\u7a2e\u54c8\u5e0c\u7b97\u6cd5\uff0c\u7528\u65bc\u5c07\u9375\u8f49\u63db\u70ba\u4e00\u500b\u6574\u6578\uff0c\u7136\u5f8c\u901a\u904e\u53d6\u6a21\u904b\u7b97\u5c07\u5176\u6620\u5c04\u523016384\u500b\u54c8\u5e0c\u69fd\u4e4b\u4e00\u3002\u9019\u7a2e\u65b9\u6cd5\u78ba\u4fdd\u4e86\u6578\u64da\u7684\u5747\u52fb\u5206\u4f48\uff0c\u5f9e\u800c\u63d0\u9ad8\u4e86\u96c6\u7fa4\u7684\u6027\u80fd\u548c\u53ef\u64f4\u5c55\u6027\u3002<\/p>\n<h2 id=\"%e5%93%88%e5%b8%8c%e6%a7%bd%e7%9a%84%e5%84%aa%e5%8b%a2-uquoFIryXq\">\u54c8\u5e0c\u69fd\u7684\u512a\u52e2<\/h2>\n<ul>\n<li><strong>\u6578\u64da\u5747\u8861\u5206\u4f48\uff1a<\/strong>\u54c8\u5e0c\u69fd\u7684\u4f7f\u7528\u4f7f\u5f97\u6578\u64da\u80fd\u5920\u5728\u96c6\u7fa4\u4e2d\u7684\u5404\u500b\u7bc0\u9ede\u4e4b\u9593\u5747\u52fb\u5206\u4f48\uff0c\u907f\u514d\u4e86\u67d0\u4e9b\u7bc0\u9ede\u904e\u8f09\u800c\u5176\u4ed6\u7bc0\u9ede\u9592\u7f6e\u7684\u60c5\u6cc1\u3002<\/li>\n<li><strong>\u9ad8\u6548\u7684\u67e5\u8a62\u6027\u80fd\uff1a<\/strong>\u7531\u65bc\u6bcf\u500b\u9375\u90fd\u88ab\u6620\u5c04\u5230\u7279\u5b9a\u7684\u54c8\u5e0c\u69fd\uff0c\u67e5\u8a62\u6642\u53ea\u9700\u5b9a\u4f4d\u5230\u76f8\u61c9\u7684\u7bc0\u9ede\uff0c\u9019\u5927\u5927\u6e1b\u5c11\u4e86\u67e5\u8a62\u5ef6\u9072\u3002<\/li>\n<li><strong>\u7c21\u5316\u7684\u64f4\u5c55\u6027\uff1a<\/strong>\u7576\u9700\u8981\u64f4\u5c55\u96c6\u7fa4\u6642\uff0c\u53ea\u9700\u5c07\u54c8\u5e0c\u69fd\u91cd\u65b0\u5206\u914d\u5230\u65b0\u7684\u7bc0\u9ede\u4e0a\uff0c\u9019\u6a23\u53ef\u4ee5\u8f15\u9b06\u5730\u589e\u52a0\u96c6\u7fa4\u7684\u5bb9\u91cf\u3002<\/li>\n<\/ul>\n<h2 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