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Posted to commits@airflow.apache.org by "Anatoli Babenia (JIRA)" <ji...@apache.org> on 2019/01/21 09:57:00 UTC

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

Anatoli Babenia created AIRFLOW-3739:
----------------------------------------

             Summary: 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


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?



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