{"id":1406,"date":"2021-11-04T15:37:17","date_gmt":"2021-11-04T07:37:17","guid":{"rendered":"https:\/\/aif.amtbbs.org\/?p=1406"},"modified":"2021-11-04T15:37:17","modified_gmt":"2021-11-04T07:37:17","slug":"github%e5%85%b3%e7%b3%bb%e5%9e%8b%e6%95%b0%e6%8d%ae%e5%ba%93%e5%9e%82%e7%9b%b4%e5%88%86%e5%ba%93%e5%ae%9e%e8%b7%b5","status":"publish","type":"post","link":"https:\/\/aif.amtbbs.org\/index.php\/2021\/11\/04\/1406\/","title":{"rendered":"GitHub\u5173\u7cfb\u578b\u6570\u636e\u5e93\u5782\u76f4\u5206\u5e93\u5b9e\u8df5"},"content":{"rendered":"
\"\u56fe\u7247\"<\/section>\n
\u6765\u6e90 | GitHub \u5b98\u65b9\u535a\u5ba2<\/section>\n
\u8bd1\u8005 | \u5c60\u7075<\/section>\n
\u7b56\u5212 | \u94b0\u83b9<\/section>\n

\u5341\u591a\u5e74\u524d\uff0c\u4e0e\u5f53\u65f6\u7684\u5927\u591a\u6570 Web \u5e94\u7528\u7a0b\u5e8f\u4e00\u6837\uff0cGitHub \u4e5f\u662f\u4e00\u4e2a\u4f7f\u7528 Ruby on Rails \u5f00\u53d1\u7684\u7f51\u7ad9\uff0c\u5b83\u7684\u5927\u90e8\u5206\u6570\u636e\u90fd\u4fdd\u5b58\u5728 MySQL \u6570\u636e\u5e93\u4e2d\u3002<\/p>\n

\u591a\u5e74\u6765\uff0c\u8fd9\u4e2a\u67b6\u6784\u7ecf\u5386\u4e86\u591a\u6b21\u8fed\u4ee3\uff0c\u4ee5\u6ee1\u8db3 GitHub \u7684\u589e\u957f\u548c\u4e0d\u65ad\u53d8\u5316\u7684\u5f39\u6027\u9700\u6c42\u3002\u4f8b\u5982\uff0c\u6211\u4eec\u5355\u72ec\u5c06\u67d0\u4e9b\u529f\u80fd\u7684\u6570\u636e\u4fdd\u5b58\u5728\u72ec\u7acb\u7684 MySQL \u6570\u636e\u5e93\u4e2d\uff1b\u6211\u4eec\u589e\u52a0\u4e86\u8bfb\u526f\u672c\u6570\u91cf\uff0c\u5c06\u8bfb\u8d1f\u8f7d\u5206\u644a\u5230\u591a\u53f0\u673a\u5668\u4e0a\uff1b\u6211\u4eec\u8fd8\u4f7f\u7528\u4e86 ProxySQL\uff0c\u51cf\u5c11\u4e3b MySQL \u5b9e\u4f8b\u6253\u5f00\u7684\u8fde\u63a5\u6570\u3002<\/p>\n

\u4f46\u4e0d\u7ba1\u600e\u6837\uff0cGitHub \u4ecd\u7136\u53ea\u6709\u4e00\u4e2a\u4e3b\u6570\u636e\u5e93\u96c6\u7fa4\uff08\u6211\u4eec\u79f0\u4e4b\u4e3a mysql1\uff09\uff0c\u8fd9\u4e2a\u96c6\u7fa4\u4fdd\u5b58\u7740 GitHub \u6838\u5fc3\u529f\u80fd\u6240\u9700\u7684\u5927\u90e8\u5206\u6570\u636e\uff0c\u6bd4\u5982\u7528\u6237\u4fe1\u606f\u3001\u4ee3\u7801\u4ed3\u5e93\u3001Issues \u548c\u62c9\u53d6\u8bf7\u6c42\u3002<\/p>\n

\u968f\u7740 GitHub \u7684\u589e\u957f\uff0c\u8fd9\u79cd\u67b6\u6784\u96be\u514d\u4f1a\u9762\u4e34\u5de8\u5927\u7684\u6311\u6218\u3002\u6211\u4eec\u52aa\u529b\u8ba9\u6570\u636e\u5e93\u7cfb\u7edf\u4fdd\u6301\u5408\u7406\u7684\u5927\u5c0f\uff0c\u5e76\u4f7f\u7528\u66f4\u65b0\u3001\u66f4\u5f3a\u5927\u7684\u673a\u5668\u3002\u4efb\u4f55\u4e00\u4e2a\u5f71\u54cd mysql1 \u7684\u6545\u969c\u90fd\u4f1a\u5f71\u54cd\u6240\u6709\u5728\u8fd9\u4e2a\u96c6\u7fa4\u4fdd\u5b58\u6570\u636e\u7684\u529f\u80fd\u3002<\/p>\n

2019 \u5e74\uff0c\u4e3a\u4e86\u6ee1\u8db3\u589e\u957f\u548c\u53ef\u7528\u6027\u65b9\u9762\u7684\u9700\u6c42\uff0c\u6211\u4eec\u542f\u52a8\u4e86\u4e00\u4e2a\u8ba1\u5212\uff0c\u76ee\u6807\u662f\u6539\u8fdb\u6211\u4eec\u5bf9\u5173\u7cfb\u578b\u6570\u636e\u5e93\u8fdb\u884c\u5206\u5e93\u7684\u5de5\u5177\u548c\u80fd\u529b\u3002\u6b63\u5982\u4f60\u6240\u60f3\u7684\u90a3\u6837\uff0c\u8fd9\u662f\u4e00\u9879\u590d\u6742\u800c\u8270\u5de8\u7684\u4efb\u52a1\uff0c\u9700\u8981\u5f15\u5165\u548c\u521b\u5efa\u5404\u79cd\u5404\u6837\u7684\u5de5\u5177\u3002<\/p>\n

\u8fd9\u6837\u505a\u7684\u7ed3\u679c\u662f\uff0c\u5728 2021 \u5e74\uff0c\u6570\u636e\u5e93\u4e3b\u673a\u7684\u8d1f\u8f7d\u964d\u4f4e\u4e86 50%\u3002\u8fd9\u6781\u5927\u51cf\u5c11\u4e86\u4e0e\u6570\u636e\u5e93\u76f8\u5173\u7684\u6545\u969c\uff0c\u5e76\u63d0\u5347\u4e86 GitHub \u7f51\u7ad9\u7684\u53ef\u9760\u6027\u3002<\/p>\n

\u865a\u62df\u5206\u5e93<\/section>\n

\u6211\u4eec\u5f15\u5165\u7684\u7b2c\u4e00\u4e2a\u6982\u5ff5\u53eb\u4f5c\u6570\u636e\u5e93\u6a21\u5f0f\u865a\u62df\u5206\u5e93\u3002\u5728\u8fdb\u884c\u771f\u6b63\u7684\u6570\u636e\u5e93\u5206\u8868\u4e4b\u524d\uff0c\u6211\u4eec\u8981\u5148\u786e\u4fdd\u5728\u5e94\u7528\u5c42\u9762\u80fd\u591f\u5c06\u8868\u5206\u5f00\uff0c\u5e76\u4e14\u4e0d\u5f71\u54cd\u56e2\u961f\u5f00\u53d1\u65b0\u529f\u80fd\u6216\u4fee\u6539\u5df2\u6709\u7684\u529f\u80fd\u3002<\/p>\n

\u4e3a\u6b64\uff0c\u6211\u4eec\u5c06\u6570\u636e\u5e93\u8868\u6309\u7167\u9886\u57df\u8fdb\u884c\u5206\u7ec4\uff0c\u5e76\u4f7f\u7528 SQL Linter \u6765\u5206\u6e05\u9886\u57df\u4e4b\u95f4\u7684\u8fb9\u754c\u3002\u8fd9\u6837\u6211\u4eec\u624d\u80fd\u5b89\u5168\u5730\u8fdb\u884c\u6570\u636e\u5206\u5e93\uff0c\u907f\u514d\u6267\u884c\u8de8\u5206\u5e93\u7684\u67e5\u8be2\u548c\u4e8b\u52a1\u3002<\/p>\n

\u6a21\u5f0f\u9886\u57df\uff08Schema Domain\uff09<\/section>\n

\u6a21\u5f0f\u9886\u57df\u662f\u6211\u4eec\u7528\u6765\u5b9e\u73b0\u865a\u62df\u5206\u5e93\u7684\u4e00\u4e2a\u5de5\u5177\u3002\u6a21\u5f0f\u9886\u57df\u5c31\u662f\u6307\u90a3\u4e9b\u7ecf\u5e38\u4e00\u8d77\u88ab\u7528\u5728\u67e5\u8be2\uff08\u4f8b\u5982\u8868\u8fde\u63a5\u548c\u5b50\u67e5\u8be2\uff09\u548c\u4e8b\u52a1\u4e2d\u7684\u6570\u636e\u5e93\u8868\u7684\u96c6\u5408\u3002\u4f8b\u5982\uff0c\u6a21\u5f0f\u9886\u57df gists \u5305\u542b\u4e86\u4e0e gists\u3001gist_comments \u548c starred_gists \u8fd9\u4e9b\u529f\u80fd\u76f8\u5173\u7684\u8868\u3002\u56e0\u4e3a\u5b83\u4eec\u5177\u6709\u76f8\u5173\u6027\uff0c\u6240\u4ee5\u5e94\u8be5\u88ab\u5206\u5728\u4e00\u8d77\uff0c\u5b83\u4eec\u5408\u5728\u4e00\u8d77\u88ab\u79f0\u4e3a\u4e00\u4e2a\u6a21\u5f0f\u9886\u57df\u3002<\/p>\n

\u6a21\u5f0f\u9886\u57df\u4e4b\u95f4\u6709\u6e05\u6670\u7684\u8fb9\u754c\uff0c\u5e76\u66b4\u9732\u51fa\u5404\u4e2a\u529f\u80fd\u4e4b\u95f4\u6a21\u7cca\u7684\u4f9d\u8d56\u5173\u7cfb\u3002\u5728 Rails \u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u8fd9\u4e9b\u4fe1\u606f\u4fdd\u5b58\u5728 db\/schema-domains.yml \u914d\u7f6e\u6587\u4ef6\u4e2d\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n

gists:\r\n  - gist_comments\r\n  - gists\r\n  - starred_gists\r\nrepositories:\r\n  - issues\r\n  - pull_requests\r\n  - repositories\r\nusers:\r\n  - avatars\r\n  - gpg_keys\r\n  - public_keys\r\n  - users\r\n<\/code><\/pre>\n
SQL Linter<\/section>\n
\u6211\u4eec\u57fa\u4e8e\u6a21\u5f0f\u9886\u57df\u6784\u5efa\u4e86\u4e24\u4e2a Linter\uff0c\u7528\u4e8e\u786e\u4fdd\u9886\u57df\u4e4b\u95f4\u5177\u6709\u6e05\u6670\u7684\u865a\u62df\u8fb9\u754c\u3002\u6211\u4eec\u5728\u67e5\u8be2\u8bed\u53e5\u4e0a\u6dfb\u52a0\u6ce8\u89e3\uff0c\u5c31\u53ef\u4ee5\u8bc6\u522b\u51fa\u90a3\u4e9b\u8de8\u8d8a\u591a\u4e2a\u6a21\u5f0f\u9886\u57df\u7684\u67e5\u8be2\u548c\u4e8b\u52a1\uff0c\u5e76\u53ef\u4ee5\u5141\u8bb8\u4e00\u4e9b\u4f8b\u5916\u60c5\u51b5\u3002\u5982\u679c\u4e00\u4e2a\u9886\u57df\u6ca1\u6709\u8fdd\u53cd\u8fd9\u4e2a\u89c4\u5219\uff0c\u5c31\u53ef\u4ee5\u8fdb\u884c\u865a\u62df\u5206\u5e93\uff0c\u5b83\u4eec\u7684\u7269\u7406\u8868\u5c31\u53ef\u4ee5\u88ab\u8fc1\u79fb\u5230\u53e6\u4e00\u4e2a\u6570\u636e\u5e93\u96c6\u7fa4\u4e2d\u3002<\/p>\n
Query Linter<\/section>\n
Query Linter \u7528\u4e8e\u68c0\u67e5\u53ea\u6709\u5c5e\u4e8e\u540c\u4e00\u4e2a\u6a21\u5f0f\u9886\u57df\u7684\u8868\u624d\u80fd\u88ab\u9488\u5bf9\u540c\u4e00\u4e2a\u6570\u636e\u5e93\u7684\u67e5\u8be2\u5f15\u7528\u3002\u5982\u679c\u5b83\u68c0\u6d4b\u5230\u67e5\u8be2\u4e2d\u5305\u542b\u6765\u81ea\u4e0d\u540c\u9886\u57df\u7684\u8868\uff0c\u5c31\u4f1a\u629b\u51fa\u5f02\u5e38\u3002\u5f02\u5e38\u4e2d\u5e26\u6709\u6709\u7528\u7684\u4fe1\u606f\uff0c\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u4eba\u5458\u89e3\u51b3\u95ee\u9898\u3002<\/p>\n
\u56e0\u4e3a Linter \u53ea\u5728\u5f00\u53d1\u548c\u6d4b\u8bd5\u73af\u5883\u4e2d\u542f\u7528\uff0c\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u5728\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u53d1\u73b0\u4e0d\u5408\u89c4\u7684\u67e5\u8be2\u3002\u53e6\u5916\uff0c\u5728 CI \u8fd0\u884c\u671f\u95f4\uff0cLinter \u53ef\u4ee5\u786e\u4fdd\u4e0d\u4f1a\u6709\u65b0\u7684\u4e0d\u5408\u89c4\u67e5\u8be2\u88ab\u5f15\u5165\u3002<\/p>\n
Linter \u8fd8\u63d0\u4f9b\u4e86\u7279\u6b8a\u7684 \/* cross-schema-domain-query-exempted *\/<\/strong> \u6ce8\u91ca\uff0c\u7528\u5b83\u6765\u6ce8\u89e3 SQL \u67e5\u8be2\u8bed\u53e5\u53ef\u4ee5\u5141\u8bb8\u4e00\u4e9b\u4f8b\u5916\u60c5\u51b5\uff0c\u5c06\u4e0a\u8ff0\u7684\u5f02\u5e38\u5ffd\u7565\u6389\u3002<\/p>\n
\u6211\u4eec\u8fd8\u7ed9 ActiveRecord \u589e\u52a0\u4e86\u65b0\u65b9\u6cd5\uff0c\u8fd9\u6837\u6dfb\u52a0\u6ce8\u91ca\u5c31\u66f4\u5bb9\u6613\u4e86\uff1a<\/p>\n
Repository.joins(:owner).annotate(\"cross-schema-domain-query-exempted\")\r\n# => SELECT * FROM `repositories` INNER JOIN `users` ON `users`.`id` = `repositories.owner_id` \/* cross-schema-domain-query-exempted *\/\r\n<\/code><\/pre>\n
\u5c06\u6240\u6709\u67e5\u8be2\u52a0\u4e0a\u6ce8\u89e3\uff0c\u5c31\u53ef\u4ee5\u5f97\u5230\u9700\u8981\u4fee\u6539\u7684\u67e5\u8be2\u8bed\u53e5\u7684\u6e05\u5355\u3002\u4ee5\u4e0b\u662f\u6211\u4eec\u7528\u6765\u89e3\u51b3\u4f8b\u5916\u60c5\u51b5\u7684\u5e38\u7528\u65b9\u6cd5\u3002<\/p>\n
\u6709\u65f6\u5019\uff0c\u6211\u4eec\u53ea\u9700\u8981\u628a\u8868\u8fde\u63a5\u67e5\u8be2\u62c6\u6210\u5355\u72ec\u7684\u67e5\u8be2\u3002\u4f8b\u5982\uff0c\u7528 ActiveRecord \u7684 preload \u65b9\u6cd5\u53d6\u4ee3 includes \u65b9\u6cd5\u3002<\/p>\n
\u53e6\u4e00\u79cd\u6bd4\u8f83\u6709\u6311\u6218\u6027\u7684\u60c5\u51b5\u662f has_many :through \u5173\u7cfb\u5bfc\u81f4\u9700\u8981\u8fde\u63a5\u6765\u81ea\u4e0d\u540c\u6a21\u5f0f\u9886\u57df\u7684\u8868\u3002\u5bf9\u4e8e\u8fd9\u79cd\u60c5\u51b5\uff0c\u6211\u4eec\u63d0\u4f9b\u4e86\u901a\u7528\u89e3\u51b3\u65b9\u6848\uff1ahas_many \u65b0\u589e\u4e86 disable_joins \u9009\u9879\uff0c\u544a\u8bc9 ActiveRecord \u4e0d\u8981\u6267\u884c\u5e95\u5c42\u8868\u8fde\u63a5\u64cd\u4f5c\uff0c\u6539\u4e3a\u6267\u884c\u591a\u6b21\u67e5\u8be2\uff0c\u5e76\u5728\u67e5\u8be2\u4e4b\u95f4\u4f20\u9012\u4e3b\u952e\u503c\u3002<\/p>\n
\u5728\u5e94\u7528\u5c42\u8fdb\u884c\u6570\u636e\u8fde\u63a5\uff0c\u800c\u4e0d\u662f\u5728\u6570\u636e\u5e93\u5c42\uff0c\u8fd9\u4e5f\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u89e3\u51b3\u65b9\u6848\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u4e24\u4e2a\u5355\u72ec\u7684\u67e5\u8be2\u66ff\u4ee3 INNER JOIN\uff0c\u7136\u540e\u5728 Ruby \u4e2d\u6267\u884c\u201cunion\u201d\u64cd\u4f5c\uff08\u4f8b\u5982\uff0cA.pluck(:b_id) & B.where(id:…)\uff09\u3002<\/p>\n
\u6709\u65f6\u5019\uff0c\u8fd9\u6837\u505a\u4f1a\u5e26\u6765\u6027\u80fd\u4e0a\u7684\u6781\u5927\u63d0\u5347\u3002\u6839\u636e\u6570\u636e\u7ed3\u6784\u548c\u6570\u636e\u96c6\u52bf\u7684\u4e0d\u540c\uff0cMySQL \u7684\u67e5\u8be2\u8ba1\u5212\u5668\u6709\u65f6\u4f1a\u751f\u6210\u6027\u80fd\u8f83\u5dee\u7684\u67e5\u8be2\u6267\u884c\u8ba1\u5212\uff0c\u800c\u5e94\u7528\u5c42\u7684\u6570\u636e\u8fde\u63a5\u53ef\u4ee5\u83b7\u5f97\u8f83\u7a33\u5b9a\u7684\u6027\u80fd\u3002<\/p>\n
\u4e0e\u5927\u591a\u6570\u4e0e\u7a33\u5b9a\u6027\u548c\u6027\u80fd\u76f8\u5173\u7684\u53d8\u66f4\u4e00\u6837\uff0c\u8fd9\u4e9b\u90fd\u7528 Scientist \u5e93\u505a\u8fc7\u5b9e\u9a8c\u3002\u6211\u4eec\u5bf9\u65b0\u65e7\u4e24\u79cd\u5b9e\u73b0\u8fdb\u884c\u4e86\u5b9e\u9a8c\u5bf9\u6bd4\uff0c\u53ef\u4ee5\u5ba2\u89c2\u5730\u8bc4\u4f30\u6bcf\u4e00\u4e2a\u53d8\u66f4\u7684\u6027\u80fd\u3002<\/p>\n
Transaction Linter<\/section>\n
\u9664\u4e86\u67e5\u8be2\u8bed\u53e5\u4e4b\u5916\uff0c\u4e8b\u52a1\u4e5f\u662f\u6211\u4eec\u7684\u4e00\u4e2a\u5173\u6ce8\u70b9\u3002\u73b0\u6709\u7684\u5e94\u7528\u7a0b\u5e8f\u4ee3\u7801\u90fd\u662f\u57fa\u4e8e\u4e00\u5b9a\u7684\u6570\u636e\u5e93\u6a21\u5f0f\u3002MySQL \u4e8b\u52a1\u53ef\u4ee5\u4fdd\u8bc1\u540c\u4e00\u6570\u636e\u5e93\u4e0d\u540c\u8868\u4e4b\u95f4\u7684\u4e00\u81f4\u6027\u3002\u5982\u679c\u4e8b\u52a1\u4e2d\u7684\u67e5\u8be2\u6240\u6d89\u53ca\u7684\u8868\u88ab\u79fb\u5230\u5176\u4ed6\u6570\u636e\u5e93\u4e2d\uff0c\u90a3\u5c31\u65e0\u6cd5\u4fdd\u8bc1\u4e00\u81f4\u6027\u3002<\/p>\n
\u4e3a\u4e86\u5f04\u6e05\u695a\u9700\u8981\u68c0\u67e5\u54ea\u4e9b\u4e8b\u52a1\uff0c\u6211\u4eec\u5f15\u5165\u4e86 Transaction Linter\u3002\u4e0e Query Linter \u7c7b\u4f3c\uff0c\u5b83\u53ef\u4ee5\u786e\u4fdd\u4e00\u4e2a\u4e8b\u52a1\u6240\u6d89\u53ca\u7684\u8868\u90fd\u5c5e\u4e8e\u540c\u4e00\u4e2a\u6a21\u5f0f\u9886\u57df\u3002<\/p>\n
\u8fd9\u4e2a Linter \u8fd0\u884c\u5728\u751f\u4ea7\u73af\u5883\u4e2d\uff0c\u8fdb\u884c\u5927\u91cf\u7684\u91c7\u6837\uff0c\u5e76\u5c06\u5bf9\u6027\u80fd\u7684\u5f71\u54cd\u964d\u5230\u6700\u4f4e\u3002\u7ed3\u679c\u88ab\u6536\u96c6\u8d77\u6765\uff0c\u7528\u4e8e\u5206\u6790\u54ea\u4e9b\u5730\u65b9\u5b58\u5728\u8de8\u9886\u57df\u4e8b\u52a1\uff0c\u8fd9\u6837\u6211\u4eec\u5c31\u53ef\u4ee5\u51b3\u5b9a\u662f\u5426\u8981\u66f4\u65b0\u67d0\u4e9b\u4ee3\u7801\u6216\u4fee\u6539\u6211\u4eec\u7684\u6570\u636e\u6a21\u578b\u3002<\/p>\n
\u5bf9\u4e8e\u90a3\u4e9b\u5bf9\u4e8b\u52a1\u4e00\u81f4\u6027\u8981\u6c42\u5f88\u9ad8\u7684\u5730\u65b9\uff0c\u6211\u4eec\u5c06\u6570\u636e\u62bd\u53d6\u5230\u540c\u5c5e\u4e00\u4e2a\u6a21\u5f0f\u9886\u57df\u7684\u65b0\u8868\u4e2d\u3002\u8fd9\u6837\u53ef\u4ee5\u786e\u4fdd\u5b83\u4eec\u4f4d\u4e8e\u540c\u4e00\u4e2a\u6570\u636e\u5e93\u96c6\u7fa4\u4e2d\uff0c\u7ee7\u7eed\u4eab\u6709\u4e8b\u52a1\u4e00\u81f4\u6027\u4fdd\u8bc1\u3002\u8fd9\u79cd\u60c5\u51b5\u591a\u53d1\u751f\u5728\u201c\u591a\u6001\u6027\u201d\u8868\u4e0a\uff0c\u8fd9\u4e9b\u8868\u7684\u6570\u636e\u6765\u81ea\u4e0d\u540c\u7684\u6a21\u5f0f\u9886\u57df\uff08\u4f8b\u5982\uff0creactions \u8868\u4fdd\u5b58\u4e86\u6765\u81ea\u591a\u4e2a\u4e0d\u540c\u529f\u80fd\u7684\u6570\u636e\uff0c\u5982 Issues\u3001\u62c9\u53d6\u8bf7\u6c42\u3001\u8ba8\u8bba\u7b49\uff09\u3002<\/p>\n
\u4e0d\u505c\u673a\u8fc1\u79fb\u6570\u636e<\/section>\n
\u6a21\u5f0f\u9886\u57df\u5728\u7ecf\u8fc7\u865a\u62df\u5206\u62c6\u4e4b\u540e\uff0c\u5c31\u53ef\u4ee5\u8fdb\u884c\u7269\u7406\u8868\u8fc1\u79fb\u3002\u4e3a\u4e86\u8fdb\u884c\u6570\u636e\u8fc1\u79fb\uff0c\u6211\u4eec\u91c7\u7528\u4e86\u4e24\u79cd\u4e0d\u540c\u7684\u65b9\u6cd5\uff1aVitess \u548c\u5199\u5207\u6362\uff08Write-Cutover\uff09\u3002<\/p>\n
Vitess<\/section>\n
Vitess \u662f\u4e00\u4e2a\u5efa\u7acb\u5728 MySQL \u4e4b\u4e0a\u7684\u4f38\u7f29\u5c42\uff0c\u7528\u4e8e\u6ee1\u8db3\u6570\u636e\u5206\u7247\u9700\u6c42\u3002\u6211\u4eec\u7528\u4e86\u5b83\u7684\u5782\u76f4\u5206\u7247\u7279\u6027\uff0c\u5728\u4e0d\u505c\u673a\u7684\u60c5\u51b5\u4e0b\u5c06\u4e00\u4e9b\u8868\u8fc1\u79fb\u5230\u4e00\u8d77\u3002<\/p>\n
\u6211\u4eec\u5728 Kubernetes \u96c6\u7fa4\u4e0a\u90e8\u7f72\u4e86 Vitess \u7684 VTGate\u3002\u5e94\u7528\u7a0b\u5e8f\u8fde\u63a5\u5230\u8fd9\u4e9b VTGate \u7aef\u70b9\u4e0a\uff0c\u800c\u4e0d\u662f\u76f4\u63a5\u8fde\u63a5\u5230 MySQL\u3002VTGate \u5b9e\u73b0\u4e86\u540c\u6837\u7684 MySQL \u534f\u8bae\uff0c\u5bf9\u4e8e\u5e94\u7528\u7a0b\u5e8f\u6765\u8bf4\u4e0e MySQL \u6ca1\u6709\u4ec0\u4e48\u4e24\u6837\u3002<\/p>\n
VTGate \u8fdb\u7a0b\u901a\u8fc7 Vitess \u7684\u53e6\u4e00\u4e2a\u7ec4\u4ef6 VTTablet \u4e0e MySQL \u5b9e\u4f8b\u53d1\u751f\u4ea4\u4e92\u3002Vitess \u7684\u6570\u636e\u8868\u8fc1\u79fb\u7279\u6027\u662f\u901a\u8fc7 VReplication \u6765\u5b9e\u73b0\u7684\uff0c\u8fd9\u4e2a\u7ec4\u4ef6\u8d1f\u8d23\u5728\u6570\u636e\u5e93\u96c6\u7fa4\u4e4b\u95f4\u590d\u5236\u6570\u636e\u3002<\/p>\n
\u5199\u5207\u6362<\/section>\n
\u5728 2020 \u5e74\u521d\uff0cVitess \u7684\u91c7\u7528\u8fd8\u5904\u5728\u65e9\u671f\u9636\u6bb5\u3002\u9664\u6b64\u4e4b\u5916\uff0c\u6211\u4eec\u8fd8\u91c7\u7528\u4e86\u53e6\u4e00\u79cd\u8fc1\u79fb\u5927\u89c4\u6a21\u6570\u636e\u8868\u7684\u65b9\u6cd5\u3002\u8fd9\u6837\u53ef\u4ee5\u964d\u4f4e\u4f9d\u8d56\u5355\u4e00\u89e3\u51b3\u65b9\u6848\u6240\u5e26\u6765\u7684\u98ce\u9669\uff0c\u786e\u4fdd GitHub \u7f51\u7ad9\u7684\u6301\u7eed\u53ef\u7528\u6027\u3002<\/p>\n
\u6211\u4eec\u5229\u7528 MySQL \u7684\u5e38\u89c4\u590d\u5236\u7279\u6027\u5c06\u6570\u636e\u8fc1\u79fb\u5230\u53e6\u4e00\u4e2a\u96c6\u7fa4\u3002\u5728\u4e00\u5f00\u59cb\uff0c\u65b0\u96c6\u7fa4\u88ab\u52a0\u5230\u65e7\u96c6\u7fa4\u7684\u590d\u5236\u6811\u4e2d\uff0c\u7136\u540e\u518d\u7528\u4e00\u4e2a\u811a\u672c\u5feb\u901f\u6267\u884c\u4e00\u4e9b\u53d8\u66f4\u6765\u5b9e\u73b0\u5207\u6362\u3002<\/p>\n
\"\u56fe\u7247\"\u5728\u8fdb\u884c\u5199\u5207\u6362\u4e4b\u524d\u7684 MySQL \u96c6\u7fa4<\/p>\n
\u5728\u8fd0\u884c\u811a\u672c\u4e4b\u524d\uff0c\u6211\u4eec\u5148\u8c03\u6574\u5e94\u7528\u7a0b\u5e8f\u548c\u6570\u636e\u5e93\u590d\u5236\u7ed3\u6784\uff0c\u5c06\u76ee\u6807\u96c6\u7fa4 cluster_b \u4f5c\u4e3a\u73b0\u6709\u96c6\u7fa4 cluster_a \u7684\u5b50\u96c6\u7fa4\u3002\u6211\u4eec\u7528 ProxySQL \u5b9e\u73b0 MySQL \u4e3b\u5b9e\u4f8b\u4e4b\u95f4\u7684\u591a\u8def\u5ba2\u6237\u7aef\u8fde\u63a5\u3002cluster_b \u4e0a\u7684 ProxySQL \u5c06\u6d41\u91cf\u8def\u7531\u5230 cluster_a \u7684\u4e3b\u5b9e\u4f8b\u4e0a\u3002\u6709\u4e86 ProxySQL\uff0c\u6211\u4eec\u53ef\u4ee5\u5feb\u901f\u6539\u53d8\u6570\u636e\u5e93\u7684\u6d41\u91cf\u8def\u7531\uff0c\u5c06\u5bf9\u5ba2\u6237\u7aef\uff08\u4e5f\u5c31\u662f\u6211\u4eec\u7684 Rails \u5e94\u7528\u7a0b\u5e8f\uff09\u7684\u5f71\u54cd\u964d\u5230\u6700\u4f4e\u3002<\/p>\n
\u57fa\u4e8e\u8fd9\u6837\u7684\u7ed3\u6784\uff0c\u6211\u4eec\u53ef\u4ee5\u5f88\u81ea\u7136\u5730\u5c06\u6570\u636e\u5e93\u8fde\u63a5\u8fc1\u79fb\u5230 cluster_b\u3002\u6240\u6709\u7684\u8bfb\u6d41\u91cf\u90fd\u6d41\u5411\u590d\u5236\u4e86 cluster_a \u4e3b\u5b9e\u4f8b\u6570\u636e\u7684\u4e3b\u673a\uff0c\u6240\u6709\u7684\u5199\u6d41\u91cf\u4ecd\u7136\u6d41\u5411 cluster_a \u4e3b\u5b9e\u4f8b\u3002<\/p>\n
\u968f\u540e\uff0c\u6211\u4eec\u5f00\u59cb\u6267\u884c\u5207\u6362\u811a\u672c\uff1a<\/p>\n
    \n
  • \u5f00\u542f cluster_a \u4e3b\u5b9e\u4f8b\u7684\u53ea\u8bfb\u6a21\u5f0f\u3002\u8fd9\u4e2a\u65f6\u5019\uff0c\u6240\u6709\u5411 cluster_a \u548c cluster_b \u7684\u5199\u5165\u64cd\u4f5c\u90fd\u662f\u4e0d\u5141\u8bb8\u7684\u3002\u6240\u6709\u5c1d\u8bd5\u5411\u6570\u636e\u5e93\u6267\u884c\u5199\u5165\u64cd\u4f5c\u7684 Web \u8bf7\u6c42\u90fd\u4f1a\u5931\u8d25\uff0c\u5e76\u8fd4\u56de 500 \u9519\u8bef\u3002<\/li>\n
  • \u4ece cluster_a \u4e3b\u5b9e\u4f8b\u8bfb\u53d6\u6700\u540e\u6267\u884c\u7684 MySQL GTID\u3002<\/li>\n
  • \u8f6e\u8be2 cluster_b \u4e3b\u5b9e\u4f8b\uff0c\u786e\u8ba4\u6700\u540e\u6267\u884c\u7684 GTID \u5df2\u8fbe\u5230\u3002<\/li>\n
  • \u505c\u6b62\u4ece cluster_a \u5230 cluster_b \u7684\u590d\u5236\u3002<\/li>\n
  • \u66f4\u65b0 cluster_b \u7684 ProxySQL \u914d\u7f6e\uff0c\u5c06\u6d41\u91cf\u91cd\u5b9a\u5411\u5230 cluster_b \u4e3b\u5b9e\u4f8b\u3002<\/li>\n
  • \u5173\u95ed cluster_a \u548c cluster_b \u4e3b\u5b9e\u4f8b\u7684\u53ea\u8bfb\u6a21\u5f0f\u3002<\/li>\n
  • \u5927\u529f\u544a\u6210\uff01<\/li>\n<\/ul>\n
    \u7ecf\u8fc7\u7cbe\u5fc3\u7684\u51c6\u5907\u548c\u8c03\u6574\uff0c\u6211\u4eec\u53d1\u73b0\uff0c\u5373\u4f7f\u662f\u6211\u4eec\u6700\u7e41\u5fd9\u7684\u6570\u636e\u5e93\u8868\uff0c\u6267\u884c\u5b8c\u4ee5\u4e0a 6 \u4e2a\u6b65\u9aa4\u4e5f\u53ea\u9700\u8981\u51e0\u5341\u6beb\u79d2\u3002\u7531\u4e8e\u6211\u4eec\u662f\u5728\u4e00\u5929\u5185\u6d41\u91cf\u6700\u4e0d\u7e41\u5fd9\u7684\u65f6\u95f4\u8fdb\u884c\u5207\u6362\uff0c\u56e0\u5199\u5165\u5931\u8d25\u800c\u5bfc\u81f4\u7684\u7528\u6237\u53ef\u611f\u77e5\u9519\u8bef\u975e\u5e38\u5c11\u3002\u8fd9\u6837\u7684\u7ed3\u679c\u5df2\u7ecf\u8d85\u51fa\u4e86\u6211\u4eec\u7684\u9884\u671f\u3002<\/p>\n
    \u53d1\u73b0<\/section>\n
    \u6211\u4eec\u901a\u8fc7\u5199\u5207\u6362\u6765\u62c6\u5206 mysql1\u2014\u2014\u6211\u4eec\u6700\u521d\u7684\u6570\u636e\u5e93\u4e3b\u96c6\u7fa4\u3002\u6211\u4eec\u4e00\u6b21\u6027\u8fc1\u79fb\u4e86 130 \u5f20\u6700\u7e41\u5fd9\u7684\u6570\u636e\u5e93\u8868\uff0c\u5b83\u4eec\u4e3a GitHub \u7684\u6838\u5fc3\u529f\u80fd\u63d0\u4f9b\u652f\u6491\uff1a\u4ee3\u7801\u4ed3\u5e93\u3001Issues \u548c\u62c9\u53d6\u8bf7\u6c42\u3002\u5199\u5207\u6362\u662f\u6211\u4eec\u7528\u6765\u964d\u4f4e\u8fc1\u79fb\u98ce\u9669\u7684\u4e00\u79cd\u7b56\u7565\uff0c\u8ba9\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u591a\u79cd\u72ec\u7acb\u7684\u5de5\u5177\u3002\u53e6\u5916\uff0c\u56e0\u4e3a\u90e8\u7f72\u62d3\u6251\u95ee\u9898\u548c\u9700\u8981\u63d0\u4f9b\u8bfb\u5df1\u4e4b\u6240\u5199\uff08Read-Your-Write\uff09\u652f\u6301\uff0c\u6211\u4eec\u5e76\u6ca1\u6709\u5728\u6240\u6709\u5730\u65b9\u90fd\u4f7f\u7528 Vitess \u4f5c\u4e3a\u8fc1\u79fb\u6570\u636e\u5e93\u8868\u7684\u5de5\u5177\uff0c\u4f46\u6211\u4eec\u9884\u8ba1\u5728\u672a\u6765\u4f1a\u5c06\u5b83\u4f5c\u4e3a\u6570\u636e\u8fc1\u79fb\u7684\u4e3b\u8981\u5de5\u5177\u3002<\/p>\n
    \u7ed3 \u00a0\u679c<\/section>\n
    \u5728\u6587\u7ae0\u7b80\u4ecb\u91cc\u6240\u63d0\u5230\u7684 mysql1\uff0c\u4e5f\u5c31\u662f\u6211\u4eec\u7684\u6570\u636e\u5e93\u4e3b\u96c6\u7fa4\uff0c\u5b83\u4fdd\u5b58\u7740 GitHub \u6838\u5fc3\u529f\u80fd\u7684\u5927\u90e8\u5206\u6570\u636e\uff0c\u6bd4\u5982\u7528\u6237\u3001\u4ee3\u7801\u4ed3\u5e93\u3001Issues \u548c\u62c9\u53d6\u8bf7\u6c42\u3002\u4ece 2019 \u5e74\u5f00\u59cb\uff0c\u6211\u4eec\u9010\u6e10\u5177\u5907\u4e86\u5bf9\u8fd9\u4e2a\u5173\u7cfb\u578b\u6570\u636e\u5e93\u8fdb\u884c\u4f38\u7f29\u7684\u80fd\u529b\uff0c\u5e76\u83b7\u5f97\u4e86\u5982\u4e0b\u7ed3\u679c\uff1a<\/p>\n
      \n
    • \u5728 2019 \u5e74\uff0cmysql1 \u5e73\u5747\u6bcf\u79d2\u5904\u7406 95 \u4e07\u4e2a\u67e5\u8be2\uff0c\u5176\u4e2d 90 \u4e07\u4e2a\u67e5\u8be2\u53d1\u751f\u5728\u526f\u672c\u4e0a\uff0c5 \u4e07\u4e2a\u53d1\u751f\u5728\u4e3b\u5b9e\u4f8b\u4e0a\u3002<\/li>\n
    • \u73b0\u5728\uff0c\u4e5f\u5c31\u662f\u5728 2021 \u5e74\uff0c\u540c\u6837\u662f\u8fd9\u4e9b\u8868\uff0c\u5b83\u4eec\u5206\u5e03\u5728\u4e0d\u540c\u7684\u96c6\u7fa4\u4e2d\u3002\u5728\u4e24\u5e74\u4e4b\u5185\uff0c\u5b83\u4eec\u89c1\u8bc1\u4e86\u6301\u7eed\u7684\u589e\u957f\uff0c\u800c\u4e14\u4e00\u5e74\u6bd4\u4e00\u5e74\u5feb\u3002\u6240\u6709\u8fd9\u4e9b\u96c6\u7fa4\u7684\u670d\u52a1\u5668\u52a0\u5728\u4e00\u8d77\uff0c\u5e73\u5747\u6bcf\u79d2\u5904\u7406 120 \u4e07\u4e2a\u67e5\u8be2\uff0c\u5176\u4e2d 112 \u4e07 5 \u5343\u4e2a\u67e5\u8be2\u53d1\u751f\u5728\u526f\u672c\u4e0a\uff0c7 \u4e07 5 \u5343\u4e2a\u53d1\u751f\u5728\u4e3b\u5b9e\u4f8b\u4e0a\u3002\u4e0e\u6b64\u540c\u65f6\uff0c\u6bcf\u53f0\u4e3b\u673a\u7684\u5e73\u5747\u8d1f\u8f7d\u51cf\u5c11\u4e86\u4e00\u534a\u3002<\/li>\n<\/ul>\n
      \u8fd9\u6781\u5927\u51cf\u5c11\u4e86\u4e0e\u6570\u636e\u5e93\u76f8\u5173\u7684\u6545\u969c\uff0c\u5e76\u63d0\u5347\u4e86 GitHub \u7f51\u7ad9\u7684\u53ef\u9760\u6027\u3002<\/p>\n
      \u66f4\u591a\u7684\u5206\u5e93\u7b56\u7565<\/section>\n
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