nathadfield opened a new issue #12584:
URL: https://github.com/apache/airflow/issues/12584
**Apache Airflow version**: 2.0.0b3
**What happened**:
Running an `airflow tasks test` CLI command produces the following stack
trace even though the task was marked as successful.
```
[2020-11-19 15:32:08,696] {taskinstance.py:1143} INFO - Marking task as
SUCCESS. dag_id=my_dag, task_id=my_task, execution_date=20201118T000000,
start_date=20201119T153140, end_date=20201119T153208
Traceback (most recent call last):
File "/usr/local/bin/airflow", line 8, in <module>
sys.exit(main())
File "/usr/local/lib/python3.7/site-packages/airflow/__main__.py", line
40, in main
args.func(args)
File "/usr/local/lib/python3.7/site-packages/airflow/cli/cli_parser.py",
line 50, in command
return func(*args, **kwargs)
File "/usr/local/lib/python3.7/site-packages/airflow/utils/cli.py", line
86, in wrapper
return f(*args, **kwargs)
File
"/usr/local/lib/python3.7/site-packages/airflow/cli/commands/task_command.py",
line 379, in task_test
ti.run(ignore_task_deps=True, ignore_ti_state=True, test_mode=True)
File "/usr/local/lib/python3.7/site-packages/airflow/utils/session.py",
line 63, in wrapper
return func(*args, **kwargs)
File
"/usr/local/lib/python3.7/site-packages/airflow/models/taskinstance.py", line
1350, in run
mark_success=mark_success, test_mode=test_mode, job_id=job_id,
pool=pool, session=session
File "/usr/local/lib/python3.7/site-packages/airflow/utils/session.py",
line 59, in wrapper
return func(*args, **kwargs)
File
"/usr/local/lib/python3.7/site-packages/airflow/models/taskinstance.py", line
1152, in _run_raw_task
self._run_mini_scheduler_on_child_tasks(session)
File "/usr/local/lib/python3.7/site-packages/airflow/utils/session.py",
line 59, in wrapper
return func(*args, **kwargs)
File
"/usr/local/lib/python3.7/site-packages/airflow/models/taskinstance.py", line
1165, in _run_mini_scheduler_on_child_tasks
execution_date=self.execution_date,
File "/usr/local/lib/python3.7/site-packages/sqlalchemy/orm/query.py",
line 3473, in one
raise orm_exc.NoResultFound("No row was found for one()")
sqlalchemy.orm.exc.NoResultFound: No row was found for one()
```
**How to reproduce it**:
`airflow tasks test my_dag my_task 2020-11-18`
**How often does this problem occur?**:
Every time.
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