{"id":98000,"date":"2024-10-20T22:56:19","date_gmt":"2024-10-20T14:56:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/98000\/"},"modified":"2024-10-20T22:56:20","modified_gmt":"2024-10-20T14:56:20","slug":"redis-%e6%a7%bd%e8%88%87%e6%95%b8%e6%93%9a%e7%9a%84%e7%9b%b8%e4%ba%92%e6%88%90%e5%9b%a0","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/98000\/","title":{"rendered":"Redis \u69fd\u8207\u6578\u64da\u7684\u76f8\u4e92\u6210\u56e0"},"content":{"rendered":"<h1 id=\"redis-%e6%a7%bd%e8%88%87%e6%95%b8%e6%93%9a%e7%9a%84%e7%9b%b8%e4%ba%92%e6%88%90%e5%9b%a0-xQOwSHRRTy\">Redis \u69fd\u8207\u6578\u64da\u7684\u76f8\u4e92\u6210\u56e0<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cRedis \u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u6578\u64da\u7d50\u69cb\u4f3a\u670d\u5668\uff0c\u5df2\u7d93\u6210\u70ba\u8a31\u591a\u61c9\u7528\u7a0b\u5e8f\u7684\u6838\u5fc3\u7d44\u4ef6\u3002Redis \u4e0d\u50c5\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u9084\u63d0\u4f9b\u4e86\u6975\u9ad8\u7684\u6027\u80fd\u548c\u9748\u6d3b\u6027\uff0c\u4f7f\u5176\u6210\u70ba\u958b\u767c\u8005\u548c\u4f01\u696d\u7684\u71b1\u9580\u9078\u64c7\u3002\u672c\u6587\u5c07\u63a2\u8a0e Redis \u69fd\u8207\u6578\u64da\u4e4b\u9593\u7684\u76f8\u4e92\u6210\u56e0\uff0c\u4e26\u5206\u6790\u5176\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u7684\u91cd\u8981\u6027\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-redis-%e6%a7%bd%ef%bc%9f-xQOwSHRRTy\">\u4ec0\u9ebc\u662f Redis \u69fd\uff1f<\/h2>\n<p>Redis \u69fd\uff08Slot\uff09\u662f Redis \u96c6\u7fa4\u67b6\u69cb\u4e2d\u7684\u4e00\u500b\u91cd\u8981\u6982\u5ff5\u3002Redis \u96c6\u7fa4\u4f7f\u7528 16384 \u500b\u69fd\u4f86\u5206\u914d\u6578\u64da\uff0c\u9019\u4e9b\u69fd\u662f\u7528\u4f86\u78ba\u5b9a\u6578\u64da\u5b58\u5132\u4f4d\u7f6e\u7684\u3002\u7576\u4e00\u500b\u9375\u88ab\u63d2\u5165\u5230 Redis \u4e2d\u6642\uff0cRedis \u6703\u6839\u64da\u9375\u7684\u54c8\u5e0c\u503c\u8a08\u7b97\u51fa\u5176\u5c0d\u61c9\u7684\u69fd\uff0c\u7136\u5f8c\u5c07\u8a72\u9375\u503c\u5c0d\u5b58\u5132\u5728\u8a72\u69fd\u6240\u5c0d\u61c9\u7684\u7bc0\u9ede\u4e0a\u3002<\/p>\n<h3 id=\"%e6%a7%bd%e7%9a%84%e8%a8%88%e7%ae%97%e6%96%b9%e5%bc%8f-xQOwSHRRTy\">\u69fd\u7684\u8a08\u7b97\u65b9\u5f0f<\/h3>\n<p>Redis \u4f7f\u7528\u4e00\u500b\u7c21\u55ae\u7684\u54c8\u5e0c\u7b97\u6cd5\u4f86\u8a08\u7b97\u69fd\u7684\u7de8\u865f\u3002\u5177\u9ad4\u4f86\u8aaa\uff0cRedis \u6703\u5c0d\u9375\u9032\u884c\u54c8\u5e0c\u8a08\u7b97\uff0c\u7136\u5f8c\u5c07\u7d50\u679c\u53d6\u6a21 16384\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nfunction getSlot(key) {\n    return hash(key) % 16384;\n}\n<\/code><\/pre>\n<p>\u9019\u7a2e\u8a2d\u8a08\u4f7f\u5f97 Redis \u80fd\u5920\u5728\u96c6\u7fa4\u4e2d\u6709\u6548\u5730\u5206\u914d\u6578\u64da\uff0c\u4e26\u4e14\u5728\u7bc0\u9ede\u4e4b\u9593\u9032\u884c\u8ca0\u8f09\u5747\u8861\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e7%9a%84%e7%9b%b8%e4%ba%92%e6%88%90%e5%9b%a0-xQOwSHRRTy\">\u6578\u64da\u7684\u76f8\u4e92\u6210\u56e0<\/h2>\n<p>\u5728 Redis \u4e2d\uff0c\u6578\u64da\u7684\u5b58\u5132\u548c\u6aa2\u7d22\u662f\u901a\u904e\u9375\u503c\u5c0d\u7684\u5f62\u5f0f\u9032\u884c\u7684\u3002\u9019\u7a2e\u7d50\u69cb\u4f7f\u5f97\u6578\u64da\u4e4b\u9593\u7684\u76f8\u4e92\u95dc\u4fc2\u8b8a\u5f97\u66f4\u52a0\u660e\u78ba\u3002\u4ee5\u4e0b\u662f\u5e7e\u500b\u95dc\u9375\u56e0\u7d20\uff0c\u89e3\u91cb\u4e86 Redis \u69fd\u8207\u6578\u64da\u4e4b\u9593\u7684\u76f8\u4e92\u6210\u56e0\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u6548\u7684\u6578\u64da\u5b58\u53d6\uff1a<\/strong>Redis \u7684\u8a2d\u8a08\u4f7f\u5f97\u6578\u64da\u5b58\u53d6\u901f\u5ea6\u6975\u5feb\uff0c\u9019\u662f\u56e0\u70ba\u5b83\u5c07\u6578\u64da\u5b58\u5132\u5728\u5167\u5b58\u4e2d\uff0c\u4e26\u4e14\u4f7f\u7528\u7c21\u55ae\u7684\u54c8\u5e0c\u7b97\u6cd5\u4f86\u5b9a\u4f4d\u6578\u64da\u3002<\/li>\n<li><strong>\u6578\u64da\u5206\u7247\uff1a<\/strong>\u901a\u904e\u5c07\u6578\u64da\u5206\u914d\u5230\u4e0d\u540c\u7684\u69fd\uff0cRedis \u80fd\u5920\u5be6\u73fe\u6578\u64da\u7684\u5206\u7247\uff0c\u9019\u6a23\u53ef\u4ee5\u63d0\u9ad8\u7cfb\u7d71\u7684\u53ef\u64f4\u5c55\u6027\u548c\u6027\u80fd\u3002<\/li>\n<li><strong>\u6545\u969c\u6062\u5fa9\uff1a<\/strong>\u5728 Redis \u96c6\u7fa4\u4e2d\uff0c\u5982\u679c\u67d0\u500b\u7bc0\u9ede\u5931\u6548\uff0c\u5176\u4ed6\u7bc0\u9ede\u4ecd\u7136\u53ef\u4ee5\u901a\u904e\u69fd\u4f86\u5b9a\u4f4d\u548c\u8a2a\u554f\u6578\u64da\uff0c\u9019\u6a23\u53ef\u4ee5\u63d0\u9ad8\u7cfb\u7d71\u7684\u53ef\u9760\u6027\u3002<\/li>\n<\/ul>\n<h3 id=\"%e5%af%a6%e9%9a%9b%e6%87%89%e7%94%a8%e4%b8%ad%e7%9a%84%e7%a4%ba%e4%be%8b-xQOwSHRRTy\">\u5be6\u969b\u61c9\u7528\u4e2d\u7684\u793a\u4f8b<\/h3>\n<p>\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0cRedis \u7684\u69fd\u8207\u6578\u64da\u7684\u76f8\u4e92\u6210\u56e0\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u793a\u4f8b\u4f86\u8aaa\u660e\uff1a<\/p>\n<pre><code>\n# \u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u7528\u6236\u6578\u64da\u7684\u9375\nuser_key = \"user:1001\"\n# \u8a08\u7b97\u8a72\u9375\u5c0d\u61c9\u7684\u69fd\nslot = getSlot(user_key)\n# \u5c07\u7528\u6236\u6578\u64da\u5b58\u5132\u5230 Redis\nredis.set(user_key, \"John Doe\")\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u7576\u6211\u5011\u5c07\u7528\u6236\u6578\u64da\u5b58\u5132\u5230 Redis \u6642\uff0c\u7cfb\u7d71\u6703\u81ea\u52d5\u8a08\u7b97\u51fa\u8a72\u9375\u5c0d\u61c9\u7684\u69fd\uff0c\u4e26\u5c07\u6578\u64da\u5b58\u5132\u5230\u76f8\u61c9\u7684\u7bc0\u9ede\u4e0a\u3002\u9019\u6a23\u7684\u8a2d\u8a08\u4e0d\u50c5\u63d0\u9ad8\u4e86\u6578\u64da\u5b58\u53d6\u7684\u6548\u7387\uff0c\u9084\u78ba\u4fdd\u4e86\u6578\u64da\u7684\u5b89\u5168\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-xQOwSHRRTy\">\u7d50\u8ad6<\/h2>\n<p>Redis \u69fd\u8207\u6578\u64da\u4e4b\u9593\u7684\u76f8\u4e92\u6210\u56e0\u662f\u7406\u89e3 Redis \u96c6\u7fa4\u67b6\u69cb\u7684\u95dc\u9375\u3002\u901a\u904e\u6709\u6548\u7684\u6578\u64da\u5206\u914d\u548c\u9ad8\u6548\u7684\u5b58\u53d6\u65b9\u5f0f\uff0cRedis \u80fd\u5920\u5728\u5404\u7a2e\u61c9\u7528\u5834\u666f\u4e2d\u63d0\u4f9b\u5353\u8d8a\u7684\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\u548c\u61c9\u7528\u9700\u6c42\u7684\u8b8a\u5316\uff0cRedis \u7684\u9019\u4e00\u7279\u6027\u5c07\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728\u60a8\u7684\u61c9\u7528\u4e2d\u4f7f\u7528 Redis \u6216\u8005\u9700\u8981\u66f4\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u96a8\u6642\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u69fd\u8207\u6578\u64da\u4e4b\u9593\u7684\u76f8\u4e92\u6210\u56e0\uff0c\u4e86\u89e3\u5982\u4f55\u5f71\u97ff\u6578\u64da\u5206\u4f48\u8207\u6027\u80fd\u512a\u5316\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-98000","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/98000","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=98000"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/98000\/revisions"}],"predecessor-version":[{"id":98001,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/98000\/revisions\/98001"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=98000"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=98000"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=98000"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}