{"id":193110,"date":"2024-11-12T20:11:21","date_gmt":"2024-11-12T12:11:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/193110\/"},"modified":"2024-11-12T20:11:23","modified_gmt":"2024-11-12T12:11:23","slug":"%e6%80%a7%e8%83%bdredis%e6%93%81%e6%8a%b1%e8%99%9b%e6%93%ac%e7%af%80%e9%bb%9e%ef%bc%8c%e6%8f%90%e5%8d%87%e6%80%a7%e8%83%bd%ef%bc%88redis%e7%94%a8%e8%99%9b%e6%93%ac%e7%af%80%e9%bb%9e%e6%94%b9%e9%80%b2","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/193110\/","title":{"rendered":"\u6027\u80fdRedis\u64c1\u62b1\u865b\u64ec\u7bc0\u9ede\uff0c\u63d0\u5347\u6027\u80fd\uff08redis\u7528\u865b\u64ec\u7bc0\u9ede\u6539\u9032\uff09"},"content":{"rendered":"<h1 id=\"%e6%80%a7%e8%83%bdredis%e6%93%81%e6%8a%b1%e8%99%9b%e6%93%ac%e7%af%80%e9%bb%9e%ef%bc%8c%e6%8f%90%e5%8d%87%e6%80%a7%e8%83%bd%ef%bc%88redis%e7%94%a8%e8%99%9b%e6%93%ac%e7%af%80%e9%bb%9e%e6%94%b9%e9%80%b2-mHtRJxFISK\">\u6027\u80fdRedis\u64c1\u62b1\u865b\u64ec\u7bc0\u9ede\uff0c\u63d0\u5347\u6027\u80fd\uff08redis\u7528\u865b\u64ec\u7bc0\u9ede\u6539\u9032\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0cRedis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\uff0c\u5982\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u5be6\u6642\u6578\u64da\u8655\u7406\u7b49\u3002\u96a8\u8457\u61c9\u7528\u9700\u6c42\u7684\u589e\u9577\uff0c\u5982\u4f55\u63d0\u5347Redis\u7684\u6027\u80fd\u6210\u70ba\u4e86\u958b\u767c\u8005\u548c\u7cfb\u7d71\u67b6\u69cb\u5e2b\u9762\u81e8\u7684\u4e00\u500b\u91cd\u8981\u6311\u6230\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u901a\u904e\u865b\u64ec\u7bc0\u9ede\u6280\u8853\u4f86\u63d0\u5347Redis\u7684\u6027\u80fd\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e8%99%9b%e6%93%ac%e7%af%80%e9%bb%9e%ef%bc%9f-mHtRJxFISK\">\u4ec0\u9ebc\u662f\u865b\u64ec\u7bc0\u9ede\uff1f<\/h2>\n<p>\u865b\u64ec\u7bc0\u9ede\uff08Virtual Node\uff09\u662f\u4e00\u7a2e\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\u4f7f\u7528\u7684\u6280\u8853\uff0c\u65e8\u5728\u63d0\u9ad8\u7cfb\u7d71\u7684\u53ef\u64f4\u5c55\u6027\u548c\u5bb9\u932f\u6027\u3002\u5728Redis\u96c6\u7fa4\u4e2d\uff0c\u865b\u64ec\u7bc0\u9ede\u7684\u6982\u5ff5\u662f\u5c07\u6bcf\u500b\u7269\u7406\u7bc0\u9ede\u5283\u5206\u70ba\u591a\u500b\u865b\u64ec\u7bc0\u9ede\uff0c\u9019\u6a23\u53ef\u4ee5\u66f4\u5747\u52fb\u5730\u5206\u914d\u6578\u64da\uff0c\u5f9e\u800c\u6e1b\u5c11\u55ae\u500b\u7bc0\u9ede\u7684\u8ca0\u8f09\u3002<\/p>\n<h2 id=\"%e8%99%9b%e6%93%ac%e7%af%80%e9%bb%9e%e7%9a%84%e5%84%aa%e5%8b%a2-mHtRJxFISK\">\u865b\u64ec\u7bc0\u9ede\u7684\u512a\u52e2<\/h2>\n<ul>\n<li><strong>\u8ca0\u8f09\u5747\u8861\uff1a<\/strong>\u865b\u64ec\u7bc0\u9ede\u53ef\u4ee5\u5e6b\u52a9\u5be6\u73fe\u66f4\u597d\u7684\u8ca0\u8f09\u5747\u8861\uff0c\u56e0\u70ba\u6578\u64da\u6703\u88ab\u5747\u52fb\u5730\u5206\u914d\u5230\u6240\u6709\u7684\u865b\u64ec\u7bc0\u9ede\u4e0a\uff0c\u5f9e\u800c\u6e1b\u5c11\u67d0\u4e00\u500b\u7269\u7406\u7bc0\u9ede\u7684\u58d3\u529b\u3002<\/li>\n<li><strong>\u5bb9\u932f\u6027\uff1a<\/strong>\u7576\u67d0\u500b\u7269\u7406\u7bc0\u9ede\u5931\u6548\u6642\uff0c\u865b\u64ec\u7bc0\u9ede\u7684\u5b58\u5728\u4f7f\u5f97\u5176\u4ed6\u7bc0\u9ede\u53ef\u4ee5\u8fc5\u901f\u63a5\u7ba1\u5176\u8ca0\u8f09\uff0c\u5f9e\u800c\u63d0\u9ad8\u7cfb\u7d71\u7684\u53ef\u7528\u6027\u3002<\/li>\n<li><strong>\u64f4\u5c55\u6027\uff1a<\/strong>\u96a8\u8457\u9700\u6c42\u7684\u589e\u9577\uff0c\u53ef\u4ee5\u8f15\u9b06\u5730\u6dfb\u52a0\u65b0\u7684\u7269\u7406\u7bc0\u9ede\uff0c\u4e26\u901a\u904e\u865b\u64ec\u7bc0\u9ede\u91cd\u65b0\u5206\u914d\u6578\u64da\uff0c\u7121\u9700\u505c\u6a5f\u7dad\u8b77\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8redis%e4%b8%ad%e5%af%a6%e7%8f%be%e8%99%9b%e6%93%ac%e7%af%80%e9%bb%9e-mHtRJxFISK\">\u5982\u4f55\u5728Redis\u4e2d\u5be6\u73fe\u865b\u64ec\u7bc0\u9ede<\/h2>\n<p>\u5728Redis\u4e2d\u5be6\u73fe\u865b\u64ec\u7bc0\u9ede\u7684\u904e\u7a0b\u76f8\u5c0d\u7c21\u55ae\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<pre><code>\n1. \u78ba\u5b9a\u7269\u7406\u7bc0\u9ede\u6578\u91cf\uff0c\u4f8b\u5982\u6709N\u500b\u7269\u7406\u7bc0\u9ede\u3002\n2. \u70ba\u6bcf\u500b\u7269\u7406\u7bc0\u9ede\u5206\u914dM\u500b\u865b\u64ec\u7bc0\u9ede\uff0c\u7e3d\u865b\u64ec\u7bc0\u9ede\u6578\u91cf\u70baN * M\u3002\n3. \u4f7f\u7528\u4e00\u81f4\u6027\u54c8\u5e0c\u7b97\u6cd5\u5c07\u6578\u64da\u6620\u5c04\u5230\u865b\u64ec\u7bc0\u9ede\u4e0a\u3002\n4. \u7576\u7269\u7406\u7bc0\u9ede\u589e\u52a0\u6216\u6e1b\u5c11\u6642\uff0c\u91cd\u65b0\u8a08\u7b97\u865b\u64ec\u7bc0\u9ede\u7684\u6620\u5c04\u3002\n<\/code><\/pre>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528\u4e00\u81f4\u6027\u54c8\u5e0c\u7b97\u6cd5\u4f86\u5be6\u73fe\u865b\u64ec\u7bc0\u9ede\uff1a<\/p>\n<pre><code>\nclass VirtualNode:\n    def __init__(self, physical_node, replicas):\n        self.physical_node = physical_node\n        self.replicas = replicas\n\n    def get_hash(self, key):\n        # \u7c21\u55ae\u7684\u54c8\u5e0c\u51fd\u6578\n        return hash(key) % self.replicas\n\n# \u5047\u8a2d\u67093\u500b\u7269\u7406\u7bc0\u9ede\uff0c\u6bcf\u500b\u7bc0\u9ede\u67092\u500b\u865b\u64ec\u7bc0\u9ede\nphysical_nodes = ['node1', 'node2', 'node3']\nreplicas = 2\nvirtual_nodes = []\n\nfor node in physical_nodes:\n    for i in range(replicas):\n        virtual_nodes.append(VirtualNode(node, replicas))\n\n# \u5c07\u6578\u64da\u6620\u5c04\u5230\u865b\u64ec\u7bc0\u9ede\ndata_key = 'example_key'\nhash_value = virtual_nodes[0].get_hash(data_key)\nprint(f\"Data {data_key} maps to virtual node with hash {hash_value}\")\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-mHtRJxFISK\">\u7d50\u8ad6<\/h2>\n<p>\u865b\u64ec\u7bc0\u9ede\u6280\u8853\u5728Redis\u4e2d\u63d0\u4f9b\u4e86\u4e00\u7a2e\u6709\u6548\u7684\u65b9\u5f0f\u4f86\u63d0\u5347\u6027\u80fd\uff0c\u901a\u904e\u8ca0\u8f09\u5747\u8861\u3001\u5bb9\u932f\u6027\u548c\u64f4\u5c55\u6027\u4f86\u61c9\u5c0d\u4e0d\u65b7\u589e\u9577\u7684\u6578\u64da\u9700\u6c42\u3002\u96a8\u8457\u6280\u8853\u7684\u9032\u6b65\uff0c\u8d8a\u4f86\u8d8a\u591a\u7684\u4f01\u696d\u958b\u59cb\u63a1\u7528\u9019\u7a2e\u65b9\u6cd5\u4f86\u512a\u5316\u5176\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u4f86\u63d0\u5347\u60a8\u7684\u6578\u64da\u5b58\u5132\u6027\u80fd\uff0c\u8003\u616e\u4f7f\u7528\u865b\u64ec\u7bc0\u9ede\u6280\u8853\uff0c\u4e26\u63a2\u7d22\u66f4\u591a\u95dc\u65bc<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u548c<a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a>\u7684\u9078\u64c7\uff0c\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u901a\u904e\u865b\u64ec\u7bc0\u9ede\u63d0\u5347Redis\u6027\u80fd\uff0c\u5be6\u73fe\u66f4\u9ad8\u6548\u7684\u6578\u64da\u5206\u4f48\u8207\u8ca0\u8f09\u5747\u8861\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-193110","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/193110","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=193110"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/193110\/revisions"}],"predecessor-version":[{"id":193111,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/193110\/revisions\/193111"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=193110"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=193110"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=193110"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}