tirkarthi opened a new issue, #47735:
URL: https://github.com/apache/airflow/issues/47735
### Apache Airflow version
main (development)
### If "Other Airflow 2 version" selected, which one?
_No response_
### What happened?
Running attached reproducer dag which has a literal list to expand crashes
the scheduler with below stack trace. It looks like
`SchedulerListOfDictsExpandInput` in similar file also needs to implement
`resolve` method.
```
[2025-03-13T20:56:12.085+0530] {cli_action_loggers.py:97} DEBUG - Calling
callbacks: []
Traceback (most recent call last):
File "/home/karthikeyan/stuff/python/airflow/.venv/bin/airflow", line 10,
in <module>
sys.exit(main())
[2025-03-13 20:56:12 +0530] [12759] [INFO] Worker exiting (pid: 12759)
^^^^^^
[2025-03-13 20:56:12 +0530] [12760] [INFO] Worker exiting (pid: 12760)
File "/home/karthikeyan/stuff/python/airflow/airflow/__main__.py", line
58, in main
args.func(args)
File "/home/karthikeyan/stuff/python/airflow/airflow/cli/cli_config.py",
line 49, in command
return func(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^
File "/home/karthikeyan/stuff/python/airflow/airflow/utils/cli.py", line
111, in wrapper
return f(*args, **kwargs)
^^^^^^^^^^^^^^^^^^
File
"/home/karthikeyan/stuff/python/airflow/airflow/utils/providers_configuration_loader.py",
line 55, in wrapped_function
return func(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^
File
"/home/karthikeyan/stuff/python/airflow/airflow/cli/commands/local_commands/scheduler_command.py",
line 52, in scheduler
run_command_with_daemon_option(
File
"/home/karthikeyan/stuff/python/airflow/airflow/cli/commands/local_commands/daemon_utils.py",
line 86, in run_command_with_daemon_option
callback()
File
"/home/karthikeyan/stuff/python/airflow/airflow/cli/commands/local_commands/scheduler_command.py",
line 55, in <lambda>
callback=lambda: _run_scheduler_job(args),
^^^^^^^^^^^^^^^^^^^^^^^^
File
"/home/karthikeyan/stuff/python/airflow/airflow/cli/commands/local_commands/scheduler_command.py",
line 43, in _run_scheduler_job
run_job(job=job_runner.job, execute_callable=job_runner._execute)
File "/home/karthikeyan/stuff/python/airflow/airflow/utils/session.py",
line 101, in wrapper
return func(*args, session=session, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/karthikeyan/stuff/python/airflow/airflow/jobs/job.py", line
342, in run_job
return execute_job(job, execute_callable=execute_callable)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/karthikeyan/stuff/python/airflow/airflow/jobs/job.py", line
371, in execute_job
ret = execute_callable()
^^^^^^^^^^^^^^^^^^
File
"/home/karthikeyan/stuff/python/airflow/airflow/jobs/scheduler_job_runner.py",
line 937, in _execute
self._run_scheduler_loop()
File
"/home/karthikeyan/stuff/python/airflow/airflow/jobs/scheduler_job_runner.py",
line 1063, in _run_scheduler_loop
num_queued_tis = self._do_scheduling(session)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/home/karthikeyan/stuff/python/airflow/airflow/jobs/scheduler_job_runner.py",
line 1163, in _do_scheduling
callback_tuples = self._schedule_all_dag_runs(guard, dag_runs, session)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/karthikeyan/stuff/python/airflow/airflow/utils/retries.py",
line 93, in wrapped_function
for attempt in run_with_db_retries(max_retries=retries, logger=logger,
**retry_kwargs):
File
"/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/tenacity/__init__.py",
line 443, in __iter__
do = self.iter(retry_state=retry_state)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/tenacity/__init__.py",
line 376, in iter
result = action(retry_state)
^^^^^^^^^^^^^^^^^^^
File
"/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/tenacity/__init__.py",
line 398, in <lambda>
self._add_action_func(lambda rs: rs.outcome.result())
^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.11/concurrent/futures/_base.py", line 449, in result
return self.__get_result()
^^^^^^^^^^^^^^^^^^^
File "/usr/lib/python3.11/concurrent/futures/_base.py", line 401, in
__get_result
raise self._exception
File "/home/karthikeyan/stuff/python/airflow/airflow/utils/retries.py",
line 102, in wrapped_function
return func(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^
File
"/home/karthikeyan/stuff/python/airflow/airflow/jobs/scheduler_job_runner.py",
line 1569, in _schedule_all_dag_runs
callback_tuples = [(run, self._schedule_dag_run(run, session=session))
for run in dag_runs]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/home/karthikeyan/stuff/python/airflow/airflow/jobs/scheduler_job_runner.py",
line 1569, in <listcomp>
callback_tuples = [(run, self._schedule_dag_run(run, session=session))
for run in dag_runs]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/home/karthikeyan/stuff/python/airflow/airflow/jobs/scheduler_job_runner.py",
line 1683, in _schedule_dag_run
dag_run.schedule_tis(schedulable_tis, session,
max_tis_per_query=self.job.max_tis_per_query)
File "/home/karthikeyan/stuff/python/airflow/airflow/utils/session.py",
line 98, in wrapper
return func(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^
File "/home/karthikeyan/stuff/python/airflow/airflow/models/dagrun.py",
line 1711, in schedule_tis
start_from_trigger = ti.task.expand_start_from_trigger(context=context,
session=session)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/home/karthikeyan/stuff/python/airflow/airflow/models/mappedoperator.py", line
64, in expand_start_from_trigger
mapped_kwargs, _ = self._expand_mapped_kwargs(context)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/home/karthikeyan/stuff/python/airflow/.venv/lib/python3.11/site-packages/airflow/sdk/definitions/mappedoperator.py",
line 691, in _expand_mapped_kwargs
return self._get_specified_expand_input().resolve(context)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'SchedulerDictOfListsExpandInput' object has no attribute
'resolve'
[2025-03-13 20:56:12 +0530] [12758] [INFO] Shutting down: Master
```
### What you think should happen instead?
_No response_
### How to reproduce
1. Run the below dag with scheduler in another tab.
```python
from __future__ import annotations
from datetime import datetime, timedelta
from airflow import DAG
from airflow.sensors.date_time import DateTimeSensorAsync
from airflow.utils import timezone
with DAG(
dag_id="file_trigger_expand_crash_1",
start_date=datetime(2021, 1, 1),
catchup=False,
schedule=None,
) as dag:
instant = timezone.datetime(2026, 11, 22)
task = DateTimeSensorAsync.partial(task_id="async",
poke_interval=3).expand(
target_time=[str(instant + timedelta(seconds=3)), str(instant +
timedelta(seconds=10))]
)
task
```
### Operating System
Ubuntu 20.04
### Versions of Apache Airflow Providers
_No response_
### Deployment
Virtualenv installation
### Deployment details
_No response_
### Anything else?
_No response_
### Are you willing to submit PR?
- [ ] Yes I am willing to submit a PR!
### Code of Conduct
- [x] I agree to follow this project's [Code of
Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)
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