如何从不同的开始时间部署修改后的气流障碍？ [英] How to deploy modified airflow dag from a different start time?

问题描述

让我们说调度程序停止了5个小时，而我的dag每小时调度两次。现在，当我重新启动调度程序时，我不想让气流回填所有丢失的实例，而是希望它从当前时刻继续。

Lets say scheduler is stopped for 5 hours and I had dag scheduled for twice every hour. Now when I restart the scheduler I do not want to airflow to backfill all the instances those were missed, Instead I want it to continue from the current hour.

推荐答案

要实现此行为，您可以使用 LatestOnlyOperator ，它最近才是介绍给了大师，直到您的DAG开始。不过，它目前不是已发布版本的一部分（1.7.1.3是撰写本文时的最新版本）。

To achieve this behavior, you can use the LatestOnlyOperator, which was just recently introduced to master, to the start of your DAG. It is not currently part of a released version though (1.7.1.3 is the latest version as of the writing of this post).

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