[jira] [Closed] (AIRFLOW-3739) Make start_date optional

["Ash Berlin-Taylor (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AIRFLOW-3739?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ash Berlin-Taylor closed AIRFLOW-3739.
--------------------------------------
    Resolution: Information Provided

If you want to create the dag but not have the scheduler run any tasks define it with {{start_date=None}} - this will show the DAG in the UI but not run it automatically. You will be able to manually trigger it via the CLI or UI.

> Make start_date optional
> ------------------------
>
>                 Key: AIRFLOW-3739
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-3739
>             Project: Apache Airflow
>          Issue Type: Improvement
>          Components: api
>    Affects Versions: 1.10.3
>            Reporter: Anatoli Babenia
>            Priority: Major
>
> I want to define DAG, but not schedule it for running.
> ```
> from airflow import DAG
> from airflow.operators.bash_operator import BashOperator
> dag = DAG('115', schedule_interval="@daily")
> seed = BashOperator(
>     task_id='get_seed',
>     bash_command='date'
> )
> dag >> seed
> ```
> This fails with the error below.
> ```
> airflow.exceptions.AirflowException: Task is missing the start_date parameter
> zsh returned exit code 1
> ```
> It it possible to make `start_date` optional. If not, why?



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)