{"id":156291,"date":"2024-11-02T20:03:22","date_gmt":"2024-11-02T12:03:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/156291\/"},"modified":"2024-11-02T20:03:24","modified_gmt":"2024-11-02T12:03:24","slug":"%e5%88%86%e5%b8%83%e5%bc%8f%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%9a%e5%af%a6%e7%8f%be%e7%9a%84%e6%9b%b4%e4%bd%b3%e6%96%b9%e5%bc%8f%ef%bc%88%e5%88%86%e5%b8%83%e5%bc%8f%e6%95%b8%e6%93%9a%e5%ba%ab%e5%af%a6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/156291\/","title":{"rendered":"\u5206\u5e03\u5f0f\u6578\u64da\u5eab\uff1a\u5be6\u73fe\u7684\u66f4\u4f73\u65b9\u5f0f\uff08\u5206\u5e03\u5f0f\u6578\u64da\u5eab\u5be6\u73fe\u65b9\u5f0f\uff09"},"content":{"rendered":"<h1 id=\"%e5%88%86%e5%b8%83%e5%bc%8f%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%9a%e5%af%a6%e7%8f%be%e7%9a%84%e6%9b%b4%e4%bd%b3%e6%96%b9%e5%bc%8f%ef%bc%88%e5%88%86%e5%b8%83%e5%bc%8f%e6%95%b8%e6%93%9a%e5%ba%ab%e5%af%a6-RTIUdhqESx\">\u5206\u5e03\u5f0f\u6578\u64da\u5eab\uff1a\u5be6\u73fe\u7684\u66f4\u4f73\u65b9\u5f0f\uff08\u5206\u5e03\u5f0f\u6578\u64da\u5eab\u5be6\u73fe\u65b9\u5f0f\uff09<\/h1>\n<p>\u96a8\u8457\u6578\u64da\u91cf\u7684\u6025\u5287\u589e\u9577\uff0c\u50b3\u7d71\u7684\u55ae\u4e00\u6578\u64da\u5eab\u7cfb\u7d71\u5df2\u7d93\u7121\u6cd5\u6eff\u8db3\u73fe\u4ee3\u61c9\u7528\u7684\u9700\u6c42\u3002\u5206\u5e03\u5f0f\u6578\u64da\u5eab\u4f5c\u70ba\u4e00\u7a2e\u65b0\u8208\u7684\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\uff0c\u9010\u6f38\u6210\u70ba\u4f01\u696d\u548c\u958b\u767c\u8005\u7684\u9996\u9078\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5206\u5e03\u5f0f\u6578\u64da\u5eab\u7684\u5be6\u73fe\u65b9\u5f0f\u53ca\u5176\u512a\u52e2\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u9019\u4e00\u6280\u8853\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%88%86%e5%b8%83%e5%bc%8f%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%9f-RTIUdhqESx\">\u4ec0\u9ebc\u662f\u5206\u5e03\u5f0f\u6578\u64da\u5eab\uff1f<\/h2>\n<p>\u5206\u5e03\u5f0f\u6578\u64da\u5eab\u662f\u4e00\u7a2e\u5c07\u6578\u64da\u5b58\u5132\u5728\u591a\u500b\u7269\u7406\u4f4d\u7f6e\u7684\u6578\u64da\u5eab\u7cfb\u7d71\u3002\u9019\u4e9b\u4f4d\u7f6e\u53ef\u4ee5\u662f\u4e0d\u540c\u7684\u4f3a\u670d\u5668\u3001\u6578\u64da\u4e2d\u5fc3\uff0c\u751a\u81f3\u662f\u4e0d\u540c\u7684\u5730\u7406\u4f4d\u7f6e\u3002\u5206\u5e03\u5f0f\u6578\u64da\u5eab\u7684\u4e3b\u8981\u7279\u9ede\u662f\u6578\u64da\u7684\u5206\u6563\u5b58\u5132\u548c\u8655\u7406\uff0c\u9019\u4f7f\u5f97\u5b83\u80fd\u5920\u63d0\u4f9b\u66f4\u9ad8\u7684\u53ef\u7528\u6027\u3001\u64f4\u5c55\u6027\u548c\u5bb9\u932f\u6027\u3002<\/p>\n<h2 id=\"%e5%88%86%e5%b8%83%e5%bc%8f%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%af%a6%e7%8f%be%e6%96%b9%e5%bc%8f-RTIUdhqESx\">\u5206\u5e03\u5f0f\u6578\u64da\u5eab\u7684\u5be6\u73fe\u65b9\u5f0f<\/h2>\n<p>\u5206\u5e03\u5f0f\u6578\u64da\u5eab\u7684\u5be6\u73fe\u65b9\u5f0f\u4e3b\u8981\u6709\u4ee5\u4e0b\u5e7e\u7a2e\uff1a<\/p>\n<h3 id=\"1-%e5%88%86%e7%89%87%ef%bc%88sharding%ef%bc%89-RTIUdhqESx\">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\u4f3a\u670d\u5668\u4e0a\u3002\u9019\u6a23\u7684\u8a2d\u8a08\u53ef\u4ee5\u6709\u6548\u5730\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u548c\u6578\u64da\u8655\u7406\u80fd\u529b\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-RTIUdhqESx\">2. \u8907\u88fd\uff08Replication\uff09<\/h3>\n<p>\u8907\u88fd\u662f\u5c07\u6578\u64da\u5728\u591a\u500b\u4f3a\u670d\u5668\u4e4b\u9593\u9032\u884c\u8907\u88fd\u7684\u904e\u7a0b\u3002\u9019\u6a23\u53ef\u4ee5\u63d0\u9ad8\u6578\u64da\u7684\u53ef\u7528\u6027\u548c\u5bb9\u932f\u6027\u3002\u5982\u679c\u67d0\u500b\u4f3a\u670d\u5668\u767c\u751f\u6545\u969c\uff0c\u7cfb\u7d71\u53ef\u4ee5\u81ea\u52d5\u5207\u63db\u5230\u5176\u4ed6\u4f3a\u670d\u5668\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u6301\u7e8c\u53ef\u7528\u3002<\/p>\n<pre><code>-- \u4e3b\u4f3a\u670d\u5668\nCREATE TABLE users (id INT PRIMARY KEY, name VARCHAR(100));\n-- \u5f9e\u4f3a\u670d\u5668\nCREATE TABLE users LIKE master_db.users;\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-RTIUdhqESx\">3. \u4e00\u81f4\u6027\u54c8\u5e0c\uff08Consistent Hashing\uff09<\/h3>\n<p>\u4e00\u81f4\u6027\u54c8\u5e0c\u662f\u4e00\u7a2e\u5206\u5e03\u5f0f\u7cfb\u7d71\u4e2d\u5e38\u7528\u7684\u6578\u64da\u5206\u914d\u7b97\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\u5c0d\u65bc\u52d5\u614b\u64f4\u5c55\u7684\u7cfb\u7d71\u5c24\u70ba\u91cd\u8981\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=\"%e5%88%86%e5%b8%83%e5%bc%8f%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%84%aa%e5%8b%a2-RTIUdhqESx\">\u5206\u5e03\u5f0f\u6578\u64da\u5eab\u7684\u512a\u52e2<\/h2>\n<ul>\n<li><strong>\u64f4\u5c55\u6027\uff1a<\/strong>\u5206\u5e03\u5f0f\u6578\u64da\u5eab\u53ef\u4ee5\u901a\u904e\u589e\u52a0\u66f4\u591a\u7684\u4f3a\u670d\u5668\u4f86\u8f15\u9b06\u64f4\u5c55\uff0c\u6eff\u8db3\u4e0d\u65b7\u589e\u9577\u7684\u6578\u64da\u9700\u6c42\u3002<\/li>\n<li><strong>\u9ad8\u53ef\u7528\u6027\uff1a<\/strong>\u901a\u904e\u6578\u64da\u8907\u88fd\u548c\u6545\u969c\u8f49\u79fb\u6a5f\u5236\uff0c\u5206\u5e03\u5f0f\u6578\u64da\u5eab\u80fd\u5920\u63d0\u4f9b\u66f4\u9ad8\u7684\u53ef\u7528\u6027\u3002<\/li>\n<li><strong>\u5bb9\u932f\u6027\uff1a<\/strong>\u5373\u4f7f\u67d0\u500b\u4f3a\u670d\u5668\u51fa\u73fe\u6545\u969c\uff0c\u7cfb\u7d71\u4ecd\u7136\u53ef\u4ee5\u6b63\u5e38\u904b\u884c\uff0c\u78ba\u4fdd\u696d\u52d9\u7684\u9023\u7e8c\u6027\u3002<\/li>\n<li><strong>\u6027\u80fd\u512a\u5316\uff1a<\/strong>\u901a\u904e\u6578\u64da\u5206\u7247\u548c\u8ca0\u8f09\u5747\u8861\uff0c\u5206\u5e03\u5f0f\u6578\u64da\u5eab\u80fd\u5920\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-RTIUdhqESx\">\u7d50\u8ad6<\/h2>\n<p>\u5206\u5e03\u5f0f\u6578\u64da\u5eab\u4f5c\u70ba\u4e00\u7a2e\u5148\u9032\u7684\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\uff0c\u70ba\u4f01\u696d\u63d0\u4f9b\u4e86\u66f4\u9ad8\u7684\u64f4\u5c55\u6027\u548c\u53ef\u7528\u6027\u3002\u96a8\u8457\u6280\u8853\u7684\u767c\u5c55\uff0c\u8d8a\u4f86\u8d8a\u591a\u7684\u4f01\u696d\u958b\u59cb\u63a1\u7528\u5206\u5e03\u5f0f\u6578\u64da\u5eab\u4f86\u61c9\u5c0d\u65e5\u76ca\u589e\u9577\u7684\u6578\u64da\u6311\u6230\u3002\u5c0d\u65bc\u5e0c\u671b\u5728\u9999\u6e2f\u5c0b\u627e\u9ad8\u6548\u80fd\u7684\u6578\u64da\u89e3\u6c7a\u65b9\u6848\u7684\u4f01\u696d\uff0c<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u548c <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u63d0\u4f9b\u4e86\u7406\u60f3\u7684\u57fa\u790e\u8a2d\u65bd\u652f\u6301\uff0c\u5e6b\u52a9\u4f01\u696d\u5be6\u73fe\u6578\u64da\u7684\u9ad8\u6548\u7ba1\u7406\u548c\u5b58\u5132\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5206\u5e03\u5f0f\u6578\u64da\u5eab\u7684\u6700\u4f73\u5be6\u73fe\u65b9\u5f0f\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\u8207\u7cfb\u7d71\u7a69\u5b9a\u6027\uff0c\u52a9\u529b\u4f01\u696d\u6578\u5b57\u5316\u8f49\u578b\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-156291","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/156291","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=156291"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/156291\/revisions"}],"predecessor-version":[{"id":156292,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/156291\/revisions\/156292"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=156291"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=156291"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=156291"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}