darwinyip commented on issue #10275:
URL: https://github.com/apache/airflow/issues/10275#issuecomment-671598774
Current workaround
```
with DAG(DAG_NAME, schedule_interval='@daily', default_args=default_args) as
dag:
task1 = DummyOperator(task_id='task1')
task2 = BashOperator(task_id='task2', bash_command='exit 1')
task3 = DummyOperator(task_id='task3')
task1 >> task2 >> task3
sensor = ExternalTaskSensor(task_id='sensor',
external_dag_id=DAG_NAME,
external_task_id='task3',
allowed_states=[State.SUCCESS, State.FAILED,
State.UPSTREAM_FAILED],
mode='reschedule')
last = DummyOperator(task_id='last')
sensor >> last
```
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