{"id":159869,"date":"2024-11-03T18:20:18","date_gmt":"2024-11-03T10:20:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/159869\/"},"modified":"2024-11-03T18:20:19","modified_gmt":"2024-11-03T10:20:19","slug":"redis-%e9%9b%86%e7%be%a4%e7%9a%84-has-%e6%9b%b9%ef%bc%9a%e7%b4%85%e8%89%b2%e4%b9%8b%e8%b7%af-redis-%e9%9b%86%e7%be%a4%e6%9e%b6%e6%a7%8b%e4%b9%8b-has-%e6%9b%b9","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/159869\/","title":{"rendered":"REDIS \u96c6\u7fa4\u7684 has \u66f9\uff1a\u7d05\u8272\u4e4b\u8def Redis \u96c6\u7fa4\u67b6\u69cb\u4e4b Has \u66f9"},"content":{"rendered":"<h1 id=\"redis-%e9%9b%86%e7%be%a4%e7%9a%84-has-%e6%9b%b9%ef%bc%9a%e7%b4%85%e8%89%b2%e4%b9%8b%e8%b7%af-redis-%e9%9b%86%e7%be%a4%e6%9e%b6%e6%a7%8b%e4%b9%8b-has-%e6%9b%b9-JRXJMnNyZs\">REDIS \u96c6\u7fa4\u7684 Has \u66f9\uff1a\u7d05\u8272\u4e4b\u8def Redis \u96c6\u7fa4\u67b6\u69cb\u4e4b Has \u66f9<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0cRedis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5df2\u7d93\u6210\u70ba\u8a31\u591a\u61c9\u7528\u7a0b\u5e8f\u7684\u6838\u5fc3\u7d44\u4ef6\u3002\u7279\u5225\u662f\u5728\u9700\u8981\u9ad8\u6027\u80fd\u548c\u9ad8\u53ef\u7528\u6027\u7684\u5834\u666f\u4e2d\uff0cRedis \u96c6\u7fa4\u67b6\u69cb\u63d0\u4f9b\u4e86\u4e00\u7a2e\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e Redis \u96c6\u7fa4\u7684 Has \u66f9\u67b6\u69cb\uff0c\u4e26\u5206\u6790\u5176\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u7684\u512a\u52e2\u548c\u6311\u6230\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-redis-%e9%9b%86%e7%be%a4%ef%bc%9f-JRXJMnNyZs\">\u4ec0\u9ebc\u662f Redis \u96c6\u7fa4\uff1f<\/h2>\n<p>Redis \u96c6\u7fa4\u662f\u4e00\u7a2e\u5206\u4f48\u5f0f\u7684 Redis \u90e8\u7f72\u65b9\u5f0f\uff0c\u65e8\u5728\u63d0\u4f9b\u9ad8\u53ef\u7528\u6027\u548c\u53ef\u64f4\u5c55\u6027\u3002\u5b83\u901a\u904e\u5c07\u6578\u64da\u5206\u7247\u5230\u591a\u500b Redis \u7bc0\u9ede\u4f86\u5be6\u73fe\uff0c\u9019\u6a23\u53ef\u4ee5\u6709\u6548\u5730\u5206\u6563\u8ca0\u8f09\u4e26\u63d0\u9ad8\u6027\u80fd\u3002\u6bcf\u500b\u7bc0\u9ede\u90fd\u53ef\u4ee5\u7368\u7acb\u8655\u7406\u8acb\u6c42\uff0c\u4e26\u4e14\u96c6\u7fa4\u4e2d\u7684\u7bc0\u9ede\u4e4b\u9593\u53ef\u4ee5\u81ea\u52d5\u5354\u8abf\uff0c\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u53ef\u7528\u6027\u3002<\/p>\n<h2 id=\"has-%e6%9b%b9%e6%9e%b6%e6%a7%8b%e7%9a%84%e6%a6%82%e5%bf%b5-JRXJMnNyZs\">Has \u66f9\u67b6\u69cb\u7684\u6982\u5ff5<\/h2>\n<p>\u5728 Redis \u96c6\u7fa4\u4e2d\uff0cHas \u66f9\uff08Hash Slot\uff09\u662f\u4e00\u7a2e\u7528\u65bc\u6578\u64da\u5206\u7247\u7684\u6a5f\u5236\u3002Redis \u5c07\u6574\u500b\u9375\u7a7a\u9593\u5283\u5206\u70ba 16384 \u500b Hash Slot\uff0c\u4e26\u5c07\u9019\u4e9b\u69fd\u5206\u914d\u7d66\u4e0d\u540c\u7684\u7bc0\u9ede\u3002\u9019\u7a2e\u8a2d\u8a08\u4f7f\u5f97 Redis \u80fd\u5920\u5728\u96c6\u7fa4\u4e2d\u5feb\u901f\u5b9a\u4f4d\u6578\u64da\uff0c\u4e26\u4e14\u5728\u7bc0\u9ede\u4e4b\u9593\u9032\u884c\u8ca0\u8f09\u5747\u8861\u3002<\/p>\n<h3 id=\"hash-slot-%e7%9a%84%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86-JRXJMnNyZs\">Hash Slot \u7684\u5de5\u4f5c\u539f\u7406<\/h3>\n<p>\u7576\u4e00\u500b\u9375\u88ab\u5beb\u5165 Redis \u6642\uff0cRedis \u6703\u6839\u64da\u9375\u7684\u540d\u7a31\u8a08\u7b97\u51fa\u5176\u5c0d\u61c9\u7684 Hash Slot\u3002\u9019\u662f\u901a\u904e\u4ee5\u4e0b\u516c\u5f0f\u5be6\u73fe\u7684\uff1a<\/p>\n<pre><code>slot = CRC16(key) mod 16384<\/code><\/pre>\n<p>\u9019\u610f\u5473\u8457\u6bcf\u500b\u9375\u90fd\u6703\u88ab\u6620\u5c04\u5230\u4e00\u500b\u7279\u5b9a\u7684 Hash Slot\uff0c\u5f9e\u800c\u78ba\u5b9a\u5b83\u61c9\u8a72\u5b58\u5132\u5728\u54ea\u500b\u7bc0\u9ede\u4e0a\u3002\u9019\u7a2e\u65b9\u6cd5\u4e0d\u50c5\u63d0\u9ad8\u4e86\u67e5\u8a62\u6548\u7387\uff0c\u9084\u7c21\u5316\u4e86\u6578\u64da\u7684\u7ba1\u7406\u3002<\/p>\n<h2 id=\"has-%e6%9b%b9%e6%9e%b6%e6%a7%8b%e7%9a%84%e5%84%aa%e5%8b%a2-JRXJMnNyZs\">Has \u66f9\u67b6\u69cb\u7684\u512a\u52e2<\/h2>\n<ul>\n<li><strong>\u9ad8\u53ef\u7528\u6027\uff1a<\/strong>Redis \u96c6\u7fa4\u652f\u6301\u4e3b\u5f9e\u8907\u88fd\uff0c\u7576\u4e3b\u7bc0\u9ede\u6545\u969c\u6642\uff0c\u53ef\u4ee5\u81ea\u52d5\u5207\u63db\u5230\u5f9e\u7bc0\u9ede\uff0c\u78ba\u4fdd\u670d\u52d9\u7684\u6301\u7e8c\u53ef\u7528\u6027\u3002<\/li>\n<li><strong>\u53ef\u64f4\u5c55\u6027\uff1a<\/strong>\u901a\u904e\u589e\u52a0\u65b0\u7684\u7bc0\u9ede\uff0c\u53ef\u4ee5\u8f15\u9b06\u64f4\u5c55\u96c6\u7fa4\u7684\u5bb9\u91cf\u548c\u6027\u80fd\uff0c\u6eff\u8db3\u4e0d\u65b7\u589e\u9577\u7684\u6578\u64da\u9700\u6c42\u3002<\/li>\n<li><strong>\u8ca0\u8f09\u5747\u8861\uff1a<\/strong>Hash Slot \u7684\u5206\u914d\u4f7f\u5f97\u8acb\u6c42\u53ef\u4ee5\u5747\u52fb\u5730\u5206\u6563\u5230\u5404\u500b\u7bc0\u9ede\uff0c\u907f\u514d\u4e86\u55ae\u9ede\u74f6\u9838\u7684\u554f\u984c\u3002<\/li>\n<\/ul>\n<h2 id=\"has-%e6%9b%b9%e6%9e%b6%e6%a7%8b%e7%9a%84%e6%8c%91%e6%88%b0-JRXJMnNyZs\">Has \u66f9\u67b6\u69cb\u7684\u6311\u6230<\/h2>\n<ul>\n<li><strong>\u6578\u64da\u9077\u79fb\uff1a<\/strong>\u7576\u6dfb\u52a0\u6216\u522a\u9664\u7bc0\u9ede\u6642\uff0cRedis \u9700\u8981\u91cd\u65b0\u5206\u914d Hash Slot\uff0c\u9019\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u7684\u9077\u79fb\uff0c\u5f71\u97ff\u6027\u80fd\u3002<\/li>\n<li><strong>\u8907\u96dc\u6027\uff1a<\/strong>\u96c6\u7fa4\u7684\u7ba1\u7406\u548c\u7dad\u8b77\u76f8\u5c0d\u65bc\u55ae\u4e00\u7bc0\u9ede\u7684 Redis \u66f4\u52a0\u8907\u96dc\uff0c\u9700\u8981\u984d\u5916\u7684\u76e3\u63a7\u548c\u7ba1\u7406\u5de5\u5177\u3002<\/li>\n<li><strong>\u4e00\u81f4\u6027\u554f\u984c\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u6578\u64da\u7684\u4e00\u81f4\u6027\u53ef\u80fd\u6703\u53d7\u5230\u5f71\u97ff\uff0c\u7279\u5225\u662f\u5728\u7db2\u7d61\u5206\u5340\u7684\u60c5\u6cc1\u4e0b\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-JRXJMnNyZs\">\u7d50\u8ad6<\/h2>\n<p>Redis \u96c6\u7fa4\u7684 Has \u66f9\u67b6\u69cb\u70ba\u9ad8\u6027\u80fd\u548c\u9ad8\u53ef\u7528\u6027\u7684\u6578\u64da\u5b58\u5132\u63d0\u4f9b\u4e86\u4e00\u7a2e\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u901a\u904e\u5408\u7406\u7684\u8a2d\u8a08\u548c\u5be6\u65bd\uff0c\u4f01\u696d\u53ef\u4ee5\u5145\u5206\u5229\u7528 Redis \u7684\u512a\u52e2\uff0c\u61c9\u5c0d\u4e0d\u65b7\u589e\u9577\u7684\u6578\u64da\u9700\u6c42\u3002\u7136\u800c\uff0c\u5be6\u65bd Redis \u96c6\u7fa4\u4e5f\u9700\u8981\u8003\u616e\u5230\u5176\u6311\u6230\uff0c\u4e26\u63a1\u53d6\u76f8\u61c9\u7684\u63aa\u65bd\u4f86\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684 Redis \u96c6\u7fa4\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u548c\u64f4\u5c55\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22 REDIS \u96c6\u7fa4\u7684 Has \u66f9\uff0c\u6df1\u5165\u4e86\u89e3\u7d05\u8272\u4e4b\u8def\u7684 Redis \u96c6\u7fa4\u67b6\u69cb\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\u8207\u6027\u80fd\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-159869","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/159869","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=159869"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/159869\/revisions"}],"predecessor-version":[{"id":159870,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/159869\/revisions\/159870"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=159869"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=159869"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=159869"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}