" could be done only once in pipeline level.
A task could do it but something like this is better built-in into the pipeline.
发件人: Jiening Wen
发送时间: 2018年5月14日 11:13
收件人: dev@airflow.incubator.apache.org
主题: RE: 答复: How to know the DAG is starting to run
I
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From: Song Liu [mailto:song...@outlook.com]
Sent: Saturday 12 May 2018 9:06 AM
To: dev@airflow.incubator.apache.org
Subject: 答复: 答复: How to know the DAG is starting to run [External]
Yes, I want to know the event about the creation of a DagRun.
发件人: crisp...@gmail.
Yes, I want to know the event about the creation of a DagRun.
发件人: crisp...@gmail.com 代表 Chris Palmer
发送时间: 2018年5月11日 15:46
收件人: dev@airflow.incubator.apache.org
主题: Re: 答复: How to know the DAG is starting to run
It's not even clear to me what it means
It's not even clear to me what it means for a DAG to start running. The
creation of a DagRun for a specific execution date is completely
independent of the scheduling of any TaskInstances for that DagRun. There
could be a significant delay between those two events, either deliberately
encoded into
Overriding the "DAG.run" sounds like a workaround, so that if it's running a
first operation of DAG then do some setup etc.
发件人: Victor Noagbodji
发送时间: 2018年5月11日 12:50
收件人: dev@airflow.incubator.apache.org
主题: Re: How to know the DAG is starting to run
Hey,
I
Yes, I have though this approach, but more elegant way is doing in the DAG
since we don't want to add this "pipeline environment setup" as a single
operator, which should be done in the DAG more gracefully.
发件人: James Meickle
发送时间: 2018年5月11日 12:09
收件人: dev@airfl
