{"id":156327,"date":"2024-11-02T20:21:20","date_gmt":"2024-11-02T12:21:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/156327\/"},"modified":"2024-11-02T20:21:21","modified_gmt":"2024-11-02T12:21:21","slug":"%e5%88%86%e5%b8%83%e5%bc%8f%e7%b3%bb%e7%b5%b1%e4%b8%ad%e6%95%b8%e6%93%9a%e5%ad%98%e5%84%b2%e6%96%b9%e6%a1%88%e5%af%a6%e8%b8%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/156327\/","title":{"rendered":"\u5206\u5e03\u5f0f\u7cfb\u7d71\u4e2d\u6578\u64da\u5b58\u5132\u65b9\u6848\u5be6\u8e10"},"content":{"rendered":"<h1 id=\"%e5%88%86%e5%b8%83%e5%bc%8f%e7%b3%bb%e7%b5%b1%e4%b8%ad%e6%95%b8%e6%93%9a%e5%ad%98%e5%84%b2%e6%96%b9%e6%a1%88%e5%af%a6%e8%b8%90-OlAVerngRZ\">\u5206\u5e03\u5f0f\u7cfb\u7d71\u4e2d\u6578\u64da\u5b58\u5132\u65b9\u6848\u5be6\u8e10<\/h1>\n<p>\u96a8\u8457\u79d1\u6280\u7684\u9032\u6b65\u548c\u4e92\u806f\u7db2\u7684\u767c\u5c55\uff0c\u5206\u5e03\u5f0f\u7cfb\u7d71\u5df2\u6210\u70ba\u73fe\u4ee3\u8a08\u7b97\u67b6\u69cb\u7684\u91cd\u8981\u7d44\u6210\u90e8\u5206\u3002\u9019\u4e9b\u7cfb\u7d71\u80fd\u5920\u5728\u591a\u500b\u7bc0\u9ede\u4e4b\u9593\u5206\u6563\u6578\u64da\u548c\u8a08\u7b97\u8ca0\u8f09\uff0c\u5f9e\u800c\u63d0\u9ad8\u7cfb\u7d71\u7684\u53ef\u64f4\u5c55\u6027\u548c\u53ef\u9760\u6027\u3002\u5728\u9019\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u5011\u5c07\u63a2\u8a0e\u5206\u5e03\u5f0f\u7cfb\u7d71\u4e2d\u7684\u6578\u64da\u5b58\u5132\u65b9\u6848\u53ca\u5176\u5be6\u8e10\uff0c\u4e26\u5206\u6790\u4e0d\u540c\u65b9\u6848\u7684\u512a\u7f3a\u9ede\u3002<\/p>\n<h2 id=\"%e5%88%86%e5%b8%83%e5%bc%8f%e6%95%b8%e6%93%9a%e5%ad%98%e5%84%b2%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-OlAVerngRZ\">\u5206\u5e03\u5f0f\u6578\u64da\u5b58\u5132\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5206\u5e03\u5f0f\u6578\u64da\u5b58\u5132\u662f\u6307\u5c07\u6578\u64da\u5206\u6563\u5b58\u5132\u5728\u591a\u500b\u7269\u7406\u6216\u865b\u64ec\u7684\u7bc0\u9ede\u4e0a\u3002\u9019\u7a2e\u67b6\u69cb\u7684\u4e3b\u8981\u76ee\u7684\u662f\u63d0\u9ad8\u6578\u64da\u7684\u53ef\u7528\u6027\u548c\u5bb9\u932f\u80fd\u529b\u3002\u7576\u67d0\u4e00\u7bc0\u9ede\u767c\u751f\u6545\u969c\u6642\uff0c\u5176\u4ed6\u7bc0\u9ede\u4ecd\u7136\u53ef\u4ee5\u63d0\u4f9b\u6578\u64da\u670d\u52d9\uff0c\u5f9e\u800c\u4fdd\u8b49\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u3002<\/p>\n<h2 id=\"%e5%b8%b8%e8%a6%8b%e7%9a%84%e5%88%86%e5%b8%83%e5%bc%8f%e6%95%b8%e6%93%9a%e5%ad%98%e5%84%b2%e6%96%b9%e6%a1%88-OlAVerngRZ\">\u5e38\u898b\u7684\u5206\u5e03\u5f0f\u6578\u64da\u5b58\u5132\u65b9\u6848<\/h2>\n<h3 id=\"1-%e5%88%86%e7%89%87%ef%bc%88sharding%ef%bc%89-OlAVerngRZ\">1. \u5206\u7247\uff08Sharding\uff09<\/h3>\n<p>\u5206\u7247\u662f\u4e00\u7a2e\u5c07\u6578\u64da\u6c34\u5e73\u5207\u5206\u7684\u65b9\u6cd5\u3002\u6bcf\u500b\u5206\u7247\u5305\u542b\u6578\u64da\u96c6\u7684\u4e00\u90e8\u5206\uff0c\u4e26\u4e14\u53ef\u4ee5\u7368\u7acb\u5b58\u5132\u5728\u4e0d\u540c\u7684\u7bc0\u9ede\u4e0a\u3002\u9019\u6a23\u7684\u8a2d\u8a08\u53ef\u4ee5\u6709\u6548\u5730\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u548c\u5beb\u5165\u901f\u5ea6\u3002<\/p>\n<pre><code>SELECT * FROM users WHERE user_id BETWEEN 1 AND 1000;  -- \u67e5\u8a62\u7b2c\u4e00\u500b\u5206\u7247\nSELECT * FROM users WHERE user_id BETWEEN 1001 AND 2000;  -- \u67e5\u8a62\u7b2c\u4e8c\u500b\u5206\u7247\n<\/code><\/pre>\n<h3 id=\"2-%e8%a4%87%e8%a3%bd%ef%bc%88replication%ef%bc%89-OlAVerngRZ\">2. \u8907\u88fd\uff08Replication\uff09<\/h3>\n<p>\u8907\u88fd\u662f\u5c07\u6578\u64da\u7684\u526f\u672c\u5b58\u5132\u5728\u591a\u500b\u7bc0\u9ede\u4e0a\uff0c\u4ee5\u63d0\u9ad8\u6578\u64da\u7684\u53ef\u7528\u6027\u548c\u5bb9\u932f\u80fd\u529b\u3002\u7576\u4e00\u500b\u7bc0\u9ede\u5931\u6548\u6642\uff0c\u7cfb\u7d71\u53ef\u4ee5\u81ea\u52d5\u5207\u63db\u5230\u5176\u4ed6\u7bc0\u9ede\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u6301\u7e8c\u53ef\u7528\u6027\u3002<\/p>\n<pre><code>CREATE TABLE users (\n    user_id INT PRIMARY KEY,\n    username VARCHAR(50)\n) ENGINE=InnoDB;\n\n-- \u5728\u4e0d\u540c\u7684\u7bc0\u9ede\u4e0a\u5275\u5efa\u76f8\u540c\u7684\u8868\n<\/code><\/pre>\n<h3 id=\"3-%e4%b8%80%e8%87%b4%e6%80%a7%e5%93%88%e5%b8%8c%ef%bc%88consistent-hashing%ef%bc%89-OlAVerngRZ\">3. \u4e00\u81f4\u6027\u54c8\u5e0c\uff08Consistent Hashing\uff09<\/h3>\n<p>\u4e00\u81f4\u6027\u54c8\u5e0c\u662f\u4e00\u7a2e\u7528\u65bc\u5206\u5e03\u5f0f\u7cfb\u7d71\u7684\u6578\u64da\u5206\u914d\u65b9\u6cd5\u3002\u5b83\u80fd\u5920\u5728\u7bc0\u9ede\u6578\u91cf\u8b8a\u5316\u6642\uff0c\u6700\u5c0f\u5316\u6578\u64da\u7684\u91cd\u65b0\u5206\u914d\u3002\u9019\u7a2e\u65b9\u6cd5\u7279\u5225\u9069\u5408\u65bc\u52d5\u614b\u64f4\u5c55\u7684\u7cfb\u7d71\u3002<\/p>\n<pre><code>function getNode(key) {\n    hash = hashFunction(key);\n    return nodes[hash % nodes.length];\n}\n<\/code><\/pre>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ad%98%e5%84%b2%e6%96%b9%e6%a1%88%e7%9a%84%e9%81%b8%e6%93%87%e8%80%83%e9%87%8f-OlAVerngRZ\">\u6578\u64da\u5b58\u5132\u65b9\u6848\u7684\u9078\u64c7\u8003\u91cf<\/h2>\n<p>\u5728\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5b58\u5132\u65b9\u6848\u6642\uff0c\u9700\u8981\u8003\u616e\u4ee5\u4e0b\u5e7e\u500b\u56e0\u7d20\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u4e00\u81f4\u6027\uff1a<\/strong>\u4e0d\u540c\u7684\u61c9\u7528\u5c0d\u6578\u64da\u4e00\u81f4\u6027\u7684\u8981\u6c42\u4e0d\u540c\uff0c\u9078\u64c7\u65b9\u6848\u6642\u9700\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9032\u884c\u8a55\u4f30\u3002<\/li>\n<li><strong>\u53ef\u64f4\u5c55\u6027\uff1a<\/strong>\u7cfb\u7d71\u662f\u5426\u80fd\u5920\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\u800c\u8f15\u9b06\u64f4\u5c55\u3002<\/li>\n<li><strong>\u5bb9\u932f\u80fd\u529b\uff1a<\/strong>\u7cfb\u7d71\u5728\u9762\u5c0d\u7bc0\u9ede\u6545\u969c\u6642\u7684\u6062\u5fa9\u80fd\u529b\u3002<\/li>\n<li><strong>\u6027\u80fd\uff1a<\/strong>\u8b80\u5beb\u6027\u80fd\u662f\u5426\u80fd\u5920\u6eff\u8db3\u696d\u52d9\u9700\u6c42\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%af%a6%e8%b8%90%e4%b8%ad%e7%9a%84%e6%8c%91%e6%88%b0-OlAVerngRZ\">\u5be6\u8e10\u4e2d\u7684\u6311\u6230<\/h2>\n<p>\u5118\u7ba1\u5206\u5e03\u5f0f\u6578\u64da\u5b58\u5132\u65b9\u6848\u63d0\u4f9b\u4e86\u8a31\u591a\u512a\u52e2\uff0c\u4f46\u5728\u5be6\u8e10\u4e2d\u4e5f\u9762\u81e8\u8457\u4e00\u4e9b\u6311\u6230\u3002\u4f8b\u5982\uff0c\u6578\u64da\u7684\u4e00\u81f4\u6027\u554f\u984c\u3001\u7db2\u7d61\u5ef6\u9072\u3001\u4ee5\u53ca\u7bc0\u9ede\u4e4b\u9593\u7684\u6578\u64da\u540c\u6b65\u7b49\uff0c\u90fd\u53ef\u80fd\u5f71\u97ff\u7cfb\u7d71\u7684\u6574\u9ad4\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-OlAVerngRZ\">\u7d50\u8ad6<\/h2>\n<p>\u5206\u5e03\u5f0f\u7cfb\u7d71\u4e2d\u7684\u6578\u64da\u5b58\u5132\u65b9\u6848\u662f\u73fe\u4ee3\u61c9\u7528\u67b6\u69cb\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002\u901a\u904e\u5408\u7406\u7684\u8a2d\u8a08\u548c\u5be6\u65bd\uff0c\u53ef\u4ee5\u6709\u6548\u63d0\u9ad8\u7cfb\u7d71\u7684\u53ef\u7528\u6027\u548c\u6027\u80fd\u3002\u96a8\u8457\u6280\u8853\u7684\u9032\u6b65\uff0c\u672a\u4f86\u7684\u6578\u64da\u5b58\u5132\u65b9\u6848\u5c07\u66f4\u52a0\u9748\u6d3b\u548c\u9ad8\u6548\uff0c\u70ba\u5404\u985e\u61c9\u7528\u63d0\u4f9b\u66f4\u597d\u7684\u652f\u6301\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5206\u5e03\u5f0f\u7cfb\u7d71\u4e2d\u7684\u6578\u64da\u5b58\u5132\u65b9\u6848\u6709\u9032\u4e00\u6b65\u7684\u8208\u8da3\uff0c\u6216\u60f3\u4e86\u89e3\u66f4\u591a\u95dc\u65bc<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u548c<a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a>\u7684\u8cc7\u8a0a\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5206\u5e03\u5f0f\u7cfb\u7d71\u4e2d\u7684\u6578\u64da\u5b58\u5132\u65b9\u6848\u5be6\u8e10\uff0c\u4e86\u89e3\u5982\u4f55\u63d0\u9ad8\u6578\u64da\u53ef\u7528\u6027\u3001\u64f4\u5c55\u6027\u548c\u4e00\u81f4\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-156327","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/156327","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=156327"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/156327\/revisions"}],"predecessor-version":[{"id":156328,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/156327\/revisions\/156328"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=156327"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=156327"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=156327"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}