{"id":20468,"date":"2026-06-10T11:35:14","date_gmt":"2026-06-10T03:35:14","guid":{"rendered":"https:\/\/ab123.xyz\/?p=20468"},"modified":"2026-06-10T11:35:14","modified_gmt":"2026-06-10T03:35:14","slug":"apache-airflow-dag-scheduling-for-etl%ef%bc%9a%e4%bc%81%e4%b8%9a%e7%ba%a7%e6%95%b0%e6%8d%ae%e7%ae%a1%e9%81%93%e8%b0%83%e5%ba%a6%e5%88%a9%e5%99%a8","status":"publish","type":"post","link":"https:\/\/ab123.xyz\/?p=20468","title":{"rendered":"Apache Airflow DAG Scheduling for ETL\uff1a\u4f01\u4e1a\u7ea7\u6570\u636e\u7ba1\u9053\u8c03\u5ea6\u5229\u5668"},"content":{"rendered":"<p>\u5728\u73fe\u4ee3\u6578\u64da\u5de5\u7a0b\u9818\u57df\uff0cETL\uff08\u63d0\u53d6\u3001\u8f49\u63db\u3001\u52a0\u8f09\uff09\u6d41\u7a0b\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u7de8\u6392\u6027\u81f3\u95dc\u91cd\u8981\u3002Apache Airflow \u4f5c\u70ba\u958b\u6e90\u5de5\u4f5c\u6d41\u7ba1\u7406\u5e73\u53f0\uff0c\u5176\u6838\u5fc3\u80fd\u529b\u2014\u2014DAG\uff08\u6709\u5411\u7121\u74b0\u5716\uff09\u8abf\u5ea6\u6a5f\u5236\uff0c\u5df2\u6210\u70ba\u5168\u7403\u5718\u968a\u69cb\u5efa\u53ef\u9760\u6578\u64da\u7ba1\u9053\u7684\u6a19\u6e96\u65b9\u6848\u3002\u672c\u6587\u5c07\u6df1\u5165\u89e3\u6790 Airflow \u5982\u4f55\u901a\u904e DAG \u8abf\u5ea6\u8ce6\u80fd ETL \u5834\u666f\uff0c\u4e26\u63d0\u4f9b\u5b98\u65b9\u5165\u53e3\u4f9b\u8b80\u8005\u5feb\u901f\u4e0a\u624b\u3002<\/p>\n<h2>\u4ec0\u9ebc\u662f Apache Airflow DAG \u8abf\u5ea6\uff1f<\/h2>\n<p>Airflow \u5c07\u5de5\u4f5c\u6d41\u5b9a\u7fa9\u70ba Python \u4ee3\u78bc\u7de8\u5beb\u7684 DAG\uff0c\u6bcf\u500b DAG \u5305\u542b\u4e00\u7cfb\u5217\u4efb\u52d9\u53ca\u5176\u4f9d\u8cf4\u95dc\u4fc2\u3002\u8abf\u5ea6\u5668\uff08Scheduler\uff09\u6839\u64da\u8a2d\u5b9a\u7684 <code>start_date<\/code>\u3001<code>schedule_interval<\/code> \u7b49\u53c3\u6578\uff0c\u81ea\u52d5\u89f8\u767c DAG \u904b\u884c\uff0c\u4e26\u7ba1\u7406\u4efb\u52d9\u57f7\u884c\u9806\u5e8f\u3001\u91cd\u8a66\u908f\u8f2f\u53ca\u8cc7\u6e90\u5206\u914d\u3002\u9019\u7a2e\u8072\u660e\u5f0f\u8a2d\u8a08\u8b93\u5de5\u7a0b\u5e2b\u7121\u9700\u624b\u52d5\u7dad\u8b77 cron \u8173\u672c\uff0c\u5373\u53ef\u5be6\u73fe\u8907\u96dc\u7684 ETL \u6642\u9593\u7b56\u7565\u3002<\/p>\n<h3>\u6838\u5fc3\u512a\u52e2\uff1a\u52d5\u614b\u8207\u53ef\u64f4\u5c55<\/h3>\n<ul>\n<li><strong>\u52d5\u614b\u751f\u6210<\/strong>\uff1aDAG \u53ef\u6839\u64da\u5916\u90e8\u53c3\u6578\u6216\u6578\u64da\u5eab\u8a18\u9304\u52d5\u614b\u751f\u6210\uff0c\u9069\u5408\u5206\u5340\u52a0\u8f09\u7b49\u5834\u666f\u3002<\/li>\n<li><strong>\u4f9d\u8cf4\u7ba1\u7406<\/strong>\uff1a\u5167\u7f6e\u4efb\u52d9\u4e0a\u4e0b\u6e38\u4f9d\u8cf4\u95dc\u4fc2\uff0c\u652f\u63f4\u689d\u4ef6\u5206\u652f\u3001\u89f8\u767c\u898f\u5247\uff0c\u78ba\u4fdd ETL \u6d41\u7a0b\u6b63\u78ba\u6709\u5e8f\u3002<\/li>\n<li><strong>\u53ef\u64f4\u5c55\u6027<\/strong>\uff1a\u900f\u904e Executor\uff08\u5982 Celery\u3001Kubernetes\uff09\u6a6b\u5411\u64f4\u5c55\uff0c\u8655\u7406\u767e\u842c\u7d1a\u4efb\u52d9\u91cf\u3002<\/li>\n<\/ul>\n<h2>\u5728 ETL \u4e2d\u7684\u5178\u578b\u61c9\u7528\u5834\u666f<\/h2>\n<h3>\u6279\u91cf\u6578\u64da\u540c\u6b65<\/h3>\n<p>\u4f8b\u5982\u6bcf\u65e5\u51cc\u6668\u5f9e MySQL \u589e\u91cf\u540c\u6b65\u81f3\u6578\u64da\u5009\u5eab\uff0cAirflow \u53ef\u8a2d\u5b9a <code>schedule=\"0 2 * * *\"<\/code>\uff0c\u4e26\u81ea\u52d5\u6aa2\u67e5\u4e0a\u6b21\u57f7\u884c\u72c0\u614b\uff0c\u907f\u514d\u91cd\u8907\u52a0\u8f09\u3002<\/p>\n<h3>\u591a\u6b65\u9a5f\u8f49\u63db\u93c8<\/h3>\n<p>ETL \u5e38\u5305\u542b\u6e05\u6d17\u3001\u805a\u5408\u3001\u6a21\u578b\u8a13\u7df4\u7b49\u591a\u500b\u968e\u6bb5\u3002Airflow \u7684 DAG \u53ef\u5c07\u6bcf\u500b\u6b65\u9a5f\u5b9a\u7fa9\u70ba\u7368\u7acb\u4efb\u52d9\uff0c\u82e5\u4e2d\u9593\u6b65\u9a5f\u5931\u6557\uff0c\u50c5\u91cd\u8a66\u8a72\u4efb\u52d9\u800c\u975e\u6574\u500b\u6d41\u7a0b\uff0c\u5927\u5e45\u7bc0\u7701\u6642\u9593\u8207\u8a08\u7b97\u6210\u672c\u3002<\/p>\n<h3>\u6578\u64da\u8cea\u91cf\u76e3\u63a7<\/h3>\n<p>\u5728 ETL \u7d50\u675f\u5f8c\uff0c\u53ef\u63d2\u5165\u6578\u64da\u9a57\u8b49\u4efb\u52d9\uff08\u5982\u7a7a\u503c\u6aa2\u67e5\u3001\u552f\u4e00\u6027\u6821\u9a57\uff09\uff0c\u82e5\u5931\u6557\u5247\u81ea\u52d5\u544a\u8b66\uff0c\u4fdd\u8b49\u4e0b\u6e38\u5831\u8868\u6e96\u78ba\u6027\u3002<\/p>\n<h2>\u6700\u4f73\u5be6\u8e10\uff1a\u5982\u4f55\u6709\u6548\u4f7f\u7528 Airflow \u8abf\u5ea6 ETL<\/h2>\n<h3>\u8a2d\u8a08 DAG \u6642\u8003\u616e\u51aa\u7b49\u6027<\/h3>\n<p>\u6bcf\u500b\u4efb\u52d9\u61c9\u8a2d\u8a08\u70ba\u53ef\u91cd\u8907\u57f7\u884c\u4e14\u7d50\u679c\u4e00\u81f4\uff0c\u5584\u7528 Airflow \u7684 <code>execution_date<\/code> \u4f5c\u70ba\u6642\u9593\u6233\uff0c\u78ba\u4fdd\u589e\u91cf\u52a0\u8f09\u4e0d\u907a\u6f0f\u3002<\/p>\n<h3>\u5408\u7406\u8a2d\u7f6e\u4e26\u884c\u5ea6\u8207\u6c60<\/h3>\n<p>\u70ba\u4e0d\u540c\u512a\u5148\u7d1a\u7684 ETL \u4efb\u52d9\u5206\u914d\u5c08\u7528\u8cc7\u6e90\u6c60\uff08Pool\uff09\uff0c\u907f\u514d\u4f4e\u512a\u5148\u7d1a\u4efb\u52d9\u963b\u585e\u95dc\u9375\u6d41\u7a0b\u3002<\/p>\n<h3>\u5229\u7528\u56de\u586b\uff08Backfill\uff09\u8655\u7406\u6b77\u53f2\u6578\u64da<\/h3>\n<p>\u7576\u65b0\u589e DAG \u6216\u4fee\u6539\u908f\u8f2f\u6642\uff0c\u53ef\u901a\u904e CLI \u6216 UI \u56de\u586b\u904e\u53bb\u6307\u5b9a\u6642\u9593\u6bb5\u7684\u6578\u64da\uff0c\u7121\u9700\u624b\u52d5\u89f8\u767c\u3002<\/p>\n<p>\u7acb\u5373\u8a2a\u554f Apache Airflow \u5b98\u65b9\u7db2\u7ad9\u7372\u53d6\u6587\u6a94\u8207\u793e\u7fa4\u652f\u6301\uff1a<a href=\"https:\/\/airflow.apache.org\" target=\"_blank\">\u5b98\u65b9\u7db2\u7ad9<\/a>\u3002\u7121\u8ad6\u662f\u521d\u5b78\u8005\u9084\u662f\u8cc7\u6df1\u5de5\u7a0b\u5e2b\uff0c\u638c\u63e1 DAG \u8abf\u5ea6\u6a5f\u5236\u90fd\u80fd\u986f\u8457\u63d0\u5347 ETL \u7ba1\u9053\u7684\u53ef\u9760\u6027\u548c\u6548\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u73fe\u4ee3\u6578\u64da\u5de5\u7a0b\u9818\u57df\uff0cETL\uff08\u63d0\u53d6\u3001\u8f49\u63db\u3001\u52a0\u8f09\uff09\u6d41\u7a0b\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u7de8\u6392\u6027\u81f3\u95dc\u91cd\u8981\u3002Apache Airflow \u4f5c [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[23846,23848,23847,848,23849],"class_list":["post-20468","post","type-post","status-publish","format-standard","hentry","category-4","tag-apache-airflow","tag-dag","tag-etl","tag-848","tag-23849"],"_links":{"self":[{"href":"https:\/\/ab123.xyz\/index.php?rest_route=\/wp\/v2\/posts\/20468","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ab123.xyz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ab123.xyz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ab123.xyz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ab123.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=20468"}],"version-history":[{"count":1,"href":"https:\/\/ab123.xyz\/index.php?rest_route=\/wp\/v2\/posts\/20468\/revisions"}],"predecessor-version":[{"id":20469,"href":"https:\/\/ab123.xyz\/index.php?rest_route=\/wp\/v2\/posts\/20468\/revisions\/20469"}],"wp:attachment":[{"href":"https:\/\/ab123.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=20468"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ab123.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=20468"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ab123.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=20468"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}