{"id":36524,"date":"2023-06-03T19:31:54","date_gmt":"2023-05-04T12:12:44","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/apache-airflow%e7%9a%84%e6%9c%af%e8%af%ad%e5%92%8c%e7%bb%84%e4%bb%b6\/"},"modified":"2024-04-30T07:12:37","modified_gmt":"2024-04-29T23:12:37","slug":"apache-airflow%e7%9a%84%e6%9c%af%e8%af%ad%e5%92%8c%e7%bb%84%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/apache-airflow%e7%9a%84%e6%9c%af%e8%af%ad%e5%92%8c%e7%bb%84%e4%bb%b6\/","title":{"rendered":"Apache Airflow\u7684\u672f\u8bed\u548c\u7ec4\u4ef6"},"content":{"rendered":"<h2>\u9996\u5148<\/h2>\n<p>\u6211\u6253\u7b97\u6574\u7406\u4f7f\u7528Apache Airflow\u65f6\u53ef\u80fd\u53d8\u5f97\u91cd\u8981\u7684\u9879\u76ee\uff0c\u8fd9\u662f\u4e3a\u4e86\u8fbe\u5230\u76ee\u7684\u3002<\/p>\n<h3>Apache Airflow\u662f\u4ec0\u4e48\uff1f<\/h3>\n<p>Airflow \u662f\u4e00\u79cd\u5de5\u4f5c\u6d41\u7ba1\u7406\u5de5\u5177\u3002<br \/>\n\u4f7f\u7528Python\u6765\u5b9a\u4e49\u5de5\u4f5c\u6d41\uff0c\u56e0\u6b64\u5177\u6709\u4ee5\u4e0b\u51e0\u70b9\u4fbf\u5229\u4e4b\u5904\uff1a<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u6027<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30c6\u30b9\u30c8\u53ef\u80fd\u6027<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u8907\u6570\u4eba\u3067\u306e\u4f5c\u696d<\/ul>\n<h3>\u5728Apache Airflow\u4e2d\u53ef\u4ee5\u505a\u7684\u4e8b\u60c5\u3002<\/h3>\n<p>\u4f5c\u4e3a\u5e38\u89c1\u7684\u7528\u4f8b\uff0c\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\u53ef\u4ee5\u8003\u8651\uff1a<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u6a5f\u68b0\u5b66\u7fd2\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u5b9a\u671f\u7684\u306a\u96c6\u8a08\u7b49\u3067\u4f55\u5ea6\u3082\u7e70\u308a\u8fd4\u3059\u51e6\u7406<\/ul>\n<p>\u7528\u4f8b | Apache Airflow<\/p>\n<h3>\u4e0d\u884c\u6216\u4e0d\u9002\u5408\u7684\u4e8b\u60c5<\/h3>\n<p>\u56e0\u4e3a\u65e0\u6cd5\u5bf9\u6bcf\u4e2a\u4efb\u52a1\u8fdb\u884c\u6570\u636e\u5171\u4eab\uff0c\u6240\u4ee5\u65e0\u6cd5\u50cf Apache Spark\u2122 \u8fd9\u6837\u4f7f\u7528\u6570\u636e\u6d41\u3002<\/p>\n<h2>\u4f7f\u7528\u7684\u8868\u8fbe\u65b9\u5f0f<\/h2>\n<p>\u5728\u8fd9\u91cc\uff0c\u6211\u4f1a\u89e3\u91ca\u4e00\u4e9b\u57fa\u672c\u672f\u8bed\u3002<\/p>\n<h3>DAG (\u6709\u5411\u65e0\u73af\u56fe)<\/h3>\n<p>\u4f7f\u7528\u6709\u5411\u975e\u5faa\u73af\u56fe(DAG)\u6765\u6784\u5efaAirflow\u7684\u57fa\u7840\u3002<br \/>\n\u901a\u8fc7DAG\u6765\u7ec4\u7ec7\u4efb\u52a1\u53ca\u5176\u4f9d\u8d56\u5173\u7cfb\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d295d37434c4406c4393e\/15-0.png\" alt=\"undefined\" \/><\/div>\n<h3>DAG\u8fd0\u884c<\/h3>\n<p>\u5728\u4e2d\u56fd\uff0c\u53ea\u9700\u8981\u4e00\u4e2a\u9009\u9879\u8fdb\u884c\u540c\u4e49\u8f6c\u8ff0\uff1a<\/p>\n<p>DAG\u7c7b\u4f3c\u4e8e\u4e00\u4e2a\u7c7b\uff0c\u5f53\u6267\u884c\u65f6\uff0c\u4f1a\u521b\u5efaDAG Runs\u4f5c\u4e3a\u5b9e\u4f8b\u3002<br \/>\n\u5982\u679c\u591a\u4e2aDAG\u88ab\u6267\u884c\uff0c\u6bcf\u4e2a\u5b9e\u4f8b\u7684execution_date\u4f1a\u6709\u6240\u4e0d\u540c\u3002<\/p>\n<h3>\u5de5\u4f5c<\/h3>\n<p>\u4efb\u52a1\u88ab\u8868\u793a\u4e3aDAG\u7684\u8282\u70b9\u3002<br \/>\n\u6bcf\u4e2a\u8282\u70b9\u4ee3\u8868\u7740\u4e00\u4e2a\u5904\u7406\u5355\u5143\u3002\u5171\u6709\u4e24\u79cd\u7c7b\u578b\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Operator<\/ul>\n<\/li>\n<\/ul>\n<p>\u5b9a\u7fa9\u305a\u307f\u306e\u51e6\u7406\u3092\u884c\u3046<br \/>\nPythonOperator \u3084 BashOperator \u304c\u3042\u308b<\/p>\n<p>Sensor<\/p>\n<p>they can pause the execution of dependent tasks until some criterion has been met<br \/>\n\u30d7\u30ed\u30bb\u30b9\u3084\u72b6\u614b\u306e\u78ba\u8a8d\u306f\u3053\u3063\u3061<\/p>\n<h3>\u4efb\u52a1\u751f\u547d\u5468\u671f<\/h3>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d295d37434c4406c4393e\/22-0.png\" alt=\"image.png\" \/><\/div>\n<h3>XComs<\/h3>\n<p>\u8de8\u901a\u4fe1\u662f\u6307\u5728\u4efb\u52a1\u4e4b\u95f4\u4ea4\u6362\u6d88\u606f\u7684\u673a\u5236\u3002<br \/>\n\u5b83\u7531\u952e\u3001\u503c\u548c\u65f6\u95f4\u6233\u7ec4\u6210\uff0c\u53ef\u4ee5\u5b58\u50a8\u6240\u6709\u53ef\u5e8f\u5217\u5316\u7684\u5bf9\u8c61\u3002<\/p>\n<h2>\u67b6\u6784 (ji\u00e0<\/h2>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d295d37434c4406c4393e\/26-0.png\" alt=\"1*czjWSmrjiRY1goA0emv7IA.png\" \/><\/div>\n<h3>\u7ec4\u4ef6<\/h3>\n<h4>\u5143\u6570\u636e\u6570\u636e\u5e93<\/h4>\n<p>\u4efb\u52a1\u72b6\u6001\u76f8\u5173\u7684\u4fe1\u606f\u88ab\u4fdd\u5b58\u4e0b\u6765\u3002<br \/>\n\u6570\u636e\u5e93\u7684\u66f4\u65b0\u662f\u901a\u8fc7\u4f7f\u7528SQLAlchemy\u8fdb\u884c\u5b9e\u73b0\u7684\u3002<\/p>\n<h4>\u65e5\u7a0b\u5b89\u6392\u8005<\/h4>\n<p>\u8c03\u5ea6\u5668\u76d1\u89c6\u6240\u6709\u4efb\u52a1\u548cDAG\uff0c\u5e76\u89e6\u53d1\u5df2\u5b8c\u6210\u6240\u6709\u4f9d\u8d56\u4efb\u52a1\u7684\u4efb\u52a1\u3002<br \/>\n\u6bcf\u4e2aDAG Runs\u90fd\u662f\u6839\u636eschedule_interval\u8fdb\u884c\u8c03\u5ea6\u7684\u3002\u6709\u5173\u53c2\u6570\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u8bf7\u53c2\u89c1\u6b64\u5904\u3002<br \/>\n\u91cd\u8981\u7684\u662f\uff0c\u5982\u679c\u5c06schedule_interval\u8bbe\u7f6e\u4e3aNone\uff0c\u5219\u4e0d\u4f1a\u8fdb\u884c\u8c03\u5ea6\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u4f7f\u7528External Triggers\u4ece\u547d\u4ee4\u884c\u754c\u9762\uff08CLI\uff09\u6216Web\u754c\u9762\u542f\u52a8\u3002<\/p>\n<h4>\u6267\u884c\u8005<\/h4>\n<p>\u8fd9\u662f\u4e00\u4e2a\u6d88\u606f\u961f\u5217\u5904\u7406\u8fc7\u7a0b\uff0c\u7528\u4e8e\u786e\u5b9a\u6267\u884c\u9884\u5b9a\u4efb\u52a1\u7684\u5de5\u4f5c\u4eba\u5458\u3002<br \/>\n\u6709\u4ee5\u4e0b\u4e0d\u540c\u7c7b\u578b\u7684\u6267\u884c\u8005\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">SequentialExecutor<\/ul>\n<\/li>\n<\/ul>\n<p>Scheduler\u3068\u540c\u3058\u30de\u30b7\u30f3\u4e0a\u3067\u30bf\u30b9\u30af\u3092\u76f4\u5217\u51e6\u7406\u3059\u308b<\/p>\n<p>LocalExecutor<\/p>\n<p>Scheduler\u3068\u540c\u3058\u30de\u30b7\u30f3\u4e0a\u3067\u30bf\u30b9\u30af\u3092\u4e26\u5217\u51e6\u7406\u3059\u308b<\/p>\n<p>CeleryExecutor<\/p>\n<p>Worker\u306e\u30af\u30e9\u30b9\u30bf\u306b\u30bf\u30b9\u30af\u3092\u5206\u6563\u3057\u3066\u4e26\u5217\u51e6\u7406\u3059\u308b<\/p>\n<h4>\u5de5\u4eba<\/h4>\n<p>\u5b9e\u9645\u6267\u884c\u4efb\u52a1\u903b\u8f91\u7684\u8fdb\u7a0b\u3002\u7531\u6267\u884c\u5668\u51b3\u5b9a\u3002<\/p>\n<h4>\u7f51\u7edc\u7528\u6237\u754c\u9762<\/h4>\n<p>\u6b63\u5982\u4e0a\u8ff0\u6240\u8ff0\uff0c\u9664\u4e86\u6267\u884c\u4efb\u52a1\u7684\u8fc7\u7a0b\u4e4b\u5916\uff0cAirflow \u8fd8\u5177\u6709\u4e00\u4e2a\u7279\u70b9\uff0c\u5373\u5b58\u5728 Web UI\u3002\u901a\u8fc7\u8fd9\u4e2a\u7279\u70b9\uff0c\u6211\u4eec\u53ef\u4ee5\u4ece\u6d4f\u89c8\u5668\u4e2d\u67e5\u770b\u4efb\u52a1\u5728 Metadata DB \u4e2d\u7684\u72b6\u6001\uff0c\u5e76\u4e14\u8fd8\u53ef\u4ee5\u7f16\u8f91 Scheduler \u7684\u884c\u4e3a\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Webserver<\/ul>\n<\/li>\n<\/ul>\n<p>Flask\u3067\u4f5c\u3089\u308c\u3066\u304a\u308a\u3001\u5168\u30bf\u30b9\u30af\u306e\u72b6\u614b\u3092 Metadata DB \u304b\u3089\u8aad\u307f\u51fa\u3057\u3001Web UI\u306b\u8868\u793a\u3059\u308b<\/p>\n<p>Execution Logs<\/p>\n<p>Worker\u30d7\u30ed\u30bb\u30b9\u306e\u5b9f\u884c\u30ed\u30b0\u3002\u30c7\u30a3\u30b9\u30af\u304b\u30ea\u30e2\u30fc\u30c8\u306e\u3069\u3061\u3089\u304b\u306b\u4fdd\u5b58\u53ef\u80fd\u3002Web UI\u3067\u78ba\u8a8d\u3067\u304d\u308b<\/p>\n<h2>\u8bf7\u6ce8\u610f\u3002<\/h2>\n<h3>\u89e6\u53d1 (ch\u00f9 f\u0101)<\/h3>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u6700\u521d DAG Run \u306f DAG \u306e\u5f15\u6570\u3067\u3042\u308b\u3001 start_date \u3092\u3082\u3068\u306b\u4f5c\u6210\u3055\u308c\u308b.<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u305d\u306e\u5f8c\u306f schedule_interval \u3092\u3082\u3068\u306b\u9806\u756a\u306b\u4f5c\u6210\u3055\u308c\u3066\u3044\u304f.<\/ul>\n<p>\u56e0\u6b64\uff0c\u5373\u4f7f\u5728Airflow &#8211; \u4efb\u52a1\u6ce8\u518c\u65f6\u6307\u5b9a\u4e86\u8fc7\u53bb\u7684\u65e5\u671f\u4f5c\u4e3a\u5f00\u59cb\u65e5\u671f\uff0c\u4e5f\u4f1a\u53d1\u751f\u963b\u6b62\u8fc7\u53bb\u65e5\u671f\u7684\u4f5c\u4e1a\u6267\u884c\u7684\u60c5\u51b5\u3002<\/p>\n<p>start_date \u304c\u672a\u6765\u306e\u307e\u307e\u3001external trigger \u3067\u5b9f\u884c\u3057\u305f\u3044\u5834\u5408<\/p>\n<p>airflow.cfg \u5185\u3067allow_trigger_in_future = True \u306b\u8a2d\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b<br \/>\n\u305f\u3060\u3057\u3001\u3053\u306e\u8a2d\u5b9a\u306f schedule_interval \u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u306e\u307f\u6709\u52b9<br \/>\n\u3053\u308c\u3089\u306e\u6761\u4ef6\u304c\u6e80\u305f\u3055\u308c\u306a\u3044\u5834\u5408\u306b\u306f\u3001start_date \u304c\u672a\u6765\u306b\u306a\u3063\u305f\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u5b9f\u884c\u3055\u308c\u308b\u306f\u305a<\/p>\n<p>\u8c03\u5ea6\u548c\u89e6\u53d1\u5668 \u2014 Airflow \u6587\u6863<\/p>\n<h2>\u8bf7\u53c2\u7167\u4ee5\u4e0b\u8bf4\u660e\u3002<\/h2>\n<p>Apache Airflow\u7684\u57fa\u672c\u6982\u5ff5\u5165\u95e8- Dustin Stansbury &#8211; Medium<br \/>\nAirflow\u6587\u6863\u4e2d\u7684\u6982\u5ff5<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9996\u5148 \u6211\u6253\u7b97\u6574\u7406\u4f7f\u7528Apache Airflow\u65f6\u53ef\u80fd\u53d8\u5f97\u91cd\u8981\u7684\u9879\u76ee\uff0c\u8fd9\u662f\u4e3a\u4e86\u8fbe\u5230\u76ee\u7684\u3002 Apache Air [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-36524","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Apache Airflow\u7684\u672f\u8bed\u548c\u7ec4\u4ef6 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/apache-airflow\u7684\u672f\u8bed\u548c\u7ec4\u4ef6\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Apache 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