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https://issues.apache.org/jira/browse/AIRFLOW-1420?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16104901#comment-16104901
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Daniel Surename commented on AIRFLOW-1420:
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Isn't this the expected result? the upstream task can only be scheduled if
there is one fail which there isn't, so the dag can't complete and fails.
> Dag fails, but none of tasks has failed
> ---------------------------------------
>
> Key: AIRFLOW-1420
> URL: https://issues.apache.org/jira/browse/AIRFLOW-1420
> Project: Apache Airflow
> Issue Type: Bug
> Reporter: Maciej Z
> Attachments: screenshot-1.png, screenshot-2.png
>
>
> Here's the code:
> {noformat}
> # -*- coding: utf-8 -*-
> from airflow.operators.dummy_operator import DummyOperator
> from airflow.models import DAG
> from datetime import date, datetime, timedelta
> day_ago = datetime.combine(datetime.today() - timedelta(1),
> datetime.min.time())
> args = {'owner': 'airflow', 'start_date': day_ago,}
> dag = DAG(dag_id='not_running_dummy2_test', default_args=args,
> schedule_interval='00 * * * *', dagrun_timeout=timedelta(hours=12))
> DummyOperator(task_id='a', dag=dag) >> DummyOperator(task_id='b', dag=dag,
> trigger_rule='one_failed')
> if __name__ == "__main__":
> dag.cli()
> {noformat}
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