{"id":183070,"date":"2024-11-10T01:41:19","date_gmt":"2024-11-09T17:41:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/183070\/"},"modified":"2024-11-10T01:41:19","modified_gmt":"2024-11-09T17:41:19","slug":"%e5%af%a6%e7%8f%beredis%e7%b7%a9%e5%ad%98%e4%b8%80%e8%87%b4%e6%80%a7%e7%9a%84%e5%93%88%e5%b8%8c%e7%ae%97%e6%b3%95%e7%a0%94%e7%a9%b6%ef%bc%88redis%e7%b7%a9%e5%ad%98%e4%b8%80%e8%87%b4%e6%80%a7%e5%93%88","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/183070\/","title":{"rendered":"\u5be6\u73feRedis\u7de9\u5b58\u4e00\u81f4\u6027\u7684\u54c8\u5e0c\u7b97\u6cd5\u7814\u7a76\uff08redis\u7de9\u5b58\u4e00\u81f4\u6027\u54c8\u5e0c\uff09"},"content":{"rendered":"<h1 id=\"%e5%af%a6%e7%8f%beredis%e7%b7%a9%e5%ad%98%e4%b8%80%e8%87%b4%e6%80%a7%e7%9a%84%e5%93%88%e5%b8%8c%e7%ae%97%e6%b3%95%e7%a0%94%e7%a9%b6%ef%bc%88redis%e7%b7%a9%e5%ad%98%e4%b8%80%e8%87%b4%e6%80%a7%e5%93%88-YZxlnqkdJw\">\u5be6\u73feRedis\u7de9\u5b58\u4e00\u81f4\u6027\u7684\u54c8\u5e0c\u7b97\u6cd5\u7814\u7a76\uff08redis\u7de9\u5b58\u4e00\u81f4\u6027\u54c8\u5e0c\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u7de9\u5b58\u6280\u8853\u5df2\u6210\u70ba\u63d0\u5347\u61c9\u7528\u6027\u80fd\u7684\u91cd\u8981\u624b\u6bb5\u3002Redis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u7de9\u5b58\u89e3\u6c7a\u65b9\u6848\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\u3002\u7136\u800c\uff0c\u96a8\u8457\u7cfb\u7d71\u7684\u64f4\u5c55\uff0c\u5982\u4f55\u4fdd\u6301\u7de9\u5b58\u7684\u4e00\u81f4\u6027\u6210\u70ba\u4e86\u4e00\u500b\u91cd\u8981\u7684\u6311\u6230\u3002\u672c\u6587\u5c07\u63a2\u8a0eRedis\u7de9\u5b58\u7684\u4e00\u81f4\u6027\u54c8\u5e0c\u7b97\u6cd5\uff0c\u4e26\u5206\u6790\u5176\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u7684\u91cd\u8981\u6027\u53ca\u5be6\u73fe\u65b9\u5f0f\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e4%b8%80%e8%87%b4%e6%80%a7%e5%93%88%e5%b8%8c%ef%bc%9f-YZxlnqkdJw\">\u4ec0\u9ebc\u662f\u4e00\u81f4\u6027\u54c8\u5e0c\uff1f<\/h2>\n<p>\u4e00\u81f4\u6027\u54c8\u5e0c\u662f\u4e00\u7a2e\u7279\u6b8a\u7684\u54c8\u5e0c\u7b97\u6cd5\uff0c\u65e8\u5728\u89e3\u6c7a\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\u7bc0\u9ede\u8b8a\u5316\u6240\u5e36\u4f86\u7684\u6578\u64da\u91cd\u65b0\u5206\u914d\u554f\u984c\u3002\u50b3\u7d71\u7684\u54c8\u5e0c\u7b97\u6cd5\u5728\u7bc0\u9ede\u6578\u91cf\u8b8a\u5316\u6642\uff0c\u6703\u5c0e\u81f4\u5927\u91cf\u6578\u64da\u9700\u8981\u91cd\u65b0\u8a08\u7b97\u548c\u79fb\u52d5\uff0c\u9019\u5c0d\u7cfb\u7d71\u6027\u80fd\u9020\u6210\u4e86\u5f71\u97ff\u3002\u800c\u4e00\u81f4\u6027\u54c8\u5e0c\u5247\u901a\u904e\u5c07\u6578\u64da\u5206\u4f48\u5728\u4e00\u500b\u865b\u64ec\u7684\u74b0\u5f62\u7a7a\u9593\u4e2d\uff0c\u4f86\u6e1b\u5c11\u6578\u64da\u7684\u79fb\u52d5\u91cf\u3002<\/p>\n<h2 id=\"redis%e4%b8%ad%e7%9a%84%e4%b8%80%e8%87%b4%e6%80%a7%e5%93%88%e5%b8%8c%e5%af%a6%e7%8f%be-YZxlnqkdJw\">Redis\u4e2d\u7684\u4e00\u81f4\u6027\u54c8\u5e0c\u5be6\u73fe<\/h2>\n<p>\u5728Redis\u4e2d\uff0c\u4e00\u81f4\u6027\u54c8\u5e0c\u7684\u5be6\u73fe\u4e3b\u8981\u4f9d\u8cf4\u65bc\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li><strong>\u74b0\u5f62\u54c8\u5e0c\u7a7a\u9593\u7684\u69cb\u5efa\uff1a<\/strong>\u5c07\u54c8\u5e0c\u503c\u6620\u5c04\u5230\u4e00\u500b0\u52302<sup>32<\/sup>-1\u7684\u7bc4\u570d\u5167\uff0c\u5f62\u6210\u4e00\u500b\u74b0\u5f62\u7d50\u69cb\u3002<\/li>\n<li><strong>\u7bc0\u9ede\u7684\u52a0\u5165\u8207\u79fb\u9664\uff1a<\/strong>\u7576\u4e00\u500b\u65b0\u7684Redis\u7bc0\u9ede\u52a0\u5165\u6642\uff0c\u8a08\u7b97\u5176\u54c8\u5e0c\u503c\u4e26\u5c07\u5176\u653e\u7f6e\u5728\u74b0\u5f62\u7a7a\u9593\u4e2d\uff1b\u7576\u7bc0\u9ede\u79fb\u9664\u6642\uff0c\u50c5\u9700\u91cd\u65b0\u5206\u914d\u8a72\u7bc0\u9ede\u6240\u8ca0\u8cac\u7684\u6578\u64da\u3002<\/li>\n<li><strong>\u6578\u64da\u7684\u67e5\u627e\uff1a<\/strong>\u6839\u64da\u6578\u64da\u7684\u54c8\u5e0c\u503c\uff0c\u627e\u5230\u5c0d\u61c9\u7684\u7bc0\u9ede\uff0c\u5f9e\u800c\u5be6\u73fe\u6578\u64da\u7684\u5feb\u901f\u67e5\u627e\u3002<\/li>\n<\/ul>\n<h3 id=\"%e7%a4%ba%e4%be%8b%e4%bb%a3%e7%a2%bc-YZxlnqkdJw\">\u793a\u4f8b\u4ee3\u78bc<\/h3>\n<pre><code>\nclass ConsistentHash:\n    def __init__(self, nodes=None):\n        self.nodes = nodes or []\n        self.ring = {}\n        self.sorted_keys = []\n        self.replicas = 100  # \u865b\u64ec\u7bc0\u9ede\u6578\u91cf\n\n    def _hash(self, key):\n        return hash(key) % (2 ** 32)\n\n    def add_node(self, node):\n        for i in range(self.replicas):\n            virtual_node = f\"{node}#{i}\"\n            self.ring[self._hash(virtual_node)] = node\n            self.sorted_keys.append(self._hash(virtual_node))\n        self.sorted_keys.sort()\n\n    def get_node(self, key):\n        if not self.ring:\n            return None\n        hash_key = self._hash(key)\n        for node_hash in self.sorted_keys:\n            if hash_key &lt;= node_hash:\n                return self.ring[node_hash]\n        return self.ring[self.sorted_keys[0]]\n<\/code><\/pre>\n<h2 id=\"%e4%b8%80%e8%87%b4%e6%80%a7%e5%93%88%e5%b8%8c%e7%9a%84%e5%84%aa%e5%8b%a2-YZxlnqkdJw\">\u4e00\u81f4\u6027\u54c8\u5e0c\u7684\u512a\u52e2<\/h2>\n<p>\u4e00\u81f4\u6027\u54c8\u5e0c\u5728Redis\u7de9\u5b58\u4e2d\u5177\u6709\u591a\u9805\u512a\u52e2\uff1a<\/p>\n<ul>\n<li><strong>\u6e1b\u5c11\u6578\u64da\u79fb\u52d5\uff1a<\/strong>\u7576\u7bc0\u9ede\u8b8a\u5316\u6642\uff0c\u53ea\u6709\u5c11\u91cf\u6578\u64da\u9700\u8981\u91cd\u65b0\u5206\u914d\uff0c\u9019\u5927\u5927\u6e1b\u5c11\u4e86\u7cfb\u7d71\u7684\u8ca0\u64d4\u3002<\/li>\n<li><strong>\u64f4\u5c55\u6027\u5f37\uff1a<\/strong>\u53ef\u4ee5\u8f15\u9b06\u5730\u6dfb\u52a0\u6216\u79fb\u9664\u7bc0\u9ede\uff0c\u800c\u4e0d\u6703\u5f71\u97ff\u6574\u9ad4\u7cfb\u7d71\u7684\u6027\u80fd\u3002<\/li>\n<li><strong>\u63d0\u9ad8\u53ef\u7528\u6027\uff1a<\/strong>\u5373\u4f7f\u67d0\u4e9b\u7bc0\u9ede\u5931\u6548\uff0c\u7cfb\u7d71\u4ecd\u7136\u80fd\u5920\u6b63\u5e38\u904b\u884c\uff0c\u56e0\u70ba\u6578\u64da\u7684\u5206\u4f48\u662f\u5747\u52fb\u7684\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-YZxlnqkdJw\">\u7d50\u8ad6<\/h2>\n<p>\u4e00\u81f4\u6027\u54c8\u5e0c\u7b97\u6cd5\u5728Redis\u7de9\u5b58\u4e2d\u7684\u61c9\u7528\uff0c\u70ba\u89e3\u6c7a\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\u7684\u6578\u64da\u4e00\u81f4\u6027\u554f\u984c\u63d0\u4f9b\u4e86\u4e00\u7a2e\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u901a\u904e\u5408\u7406\u7684\u8a2d\u8a08\u548c\u5be6\u73fe\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u7cfb\u7d71\u7684\u6027\u80fd\u548c\u53ef\u7528\u6027\u3002\u96a8\u8457\u6280\u8853\u7684\u767c\u5c55\uff0c\u5c0d\u65bc\u7de9\u5b58\u4e00\u81f4\u6027\u7684\u7814\u7a76\u4ecd\u5c07\u6301\u7e8c\u6df1\u5165\uff0c\u70ba\u672a\u4f86\u7684\u61c9\u7528\u63d0\u4f9b\u66f4\u591a\u7684\u53ef\u80fd\u6027\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc\u65bc<code>VPS<\/code>\u3001<code>\u9999\u6e2fVPS<\/code>\u53ca<code>\u4f3a\u670d\u5668<\/code>\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9 <a href=\"https:\/\/server.hk\">Server.HK<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Redis\u7de9\u5b58\u4e00\u81f4\u6027\u54c8\u5e0c\u7b97\u6cd5\u7684\u7814\u7a76\uff0c\u63d0\u5347\u6578\u64da\u5b58\u53d6\u6548\u7387\uff0c\u78ba\u4fdd\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\u7684\u6578\u64da\u4e00\u81f4\u6027\u8207\u7a69\u5b9a\u6027\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-183070","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183070","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=183070"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183070\/revisions"}],"predecessor-version":[{"id":183071,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183070\/revisions\/183071"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=183070"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=183070"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=183070"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}