vatsrahul1001 opened a new issue, #48844:
URL: https://github.com/apache/airflow/issues/48844
### Apache Airflow version
3.0.0
### If "Other Airflow 2 version" selected, which one?
_No response_
### What happened?
Scheduler is crashing with the below error
```
Traceback (most recent call last):
File "/opt/airflow/airflow-core/src/airflow/jobs/scheduler_job_runner.py",
line 954, in _execute
self._run_scheduler_loop()
File "/opt/airflow/airflow-core/src/airflow/jobs/scheduler_job_runner.py",
line 1235, in _run_scheduler_loop
num_queued_tis = self._do_scheduling(session)
File "/opt/airflow/airflow-core/src/airflow/jobs/scheduler_job_runner.py",
line 1326, in _do_scheduling
self._create_dagruns_for_dags(guard, session)
File "/opt/airflow/airflow-core/src/airflow/utils/retries.py", line 93, in
wrapped_function
for attempt in run_with_db_retries(max_retries=retries, logger=logger,
**retry_kwargs):
File "/usr/local/lib/python3.9/site-packages/tenacity/__init__.py", line
445, in __iter__
do = self.iter(retry_state=retry_state)
File "/usr/local/lib/python3.9/site-packages/tenacity/__init__.py", line
378, in iter
result = action(retry_state)
File "/usr/local/lib/python3.9/site-packages/tenacity/__init__.py", line
400, in <lambda>
self._add_action_func(lambda rs: rs.outcome.result())
File "/usr/local/lib/python3.9/concurrent/futures/_base.py", line 439, in
result
return self.__get_result()
File "/usr/local/lib/python3.9/concurrent/futures/_base.py", line 391, in
__get_result
raise self._exception
File "/opt/airflow/airflow-core/src/airflow/utils/retries.py", line 102,
in wrapped_function
return func(*args, **kwargs)
File "/opt/airflow/airflow-core/src/airflow/jobs/scheduler_job_runner.py",
line 1389, in _create_dagruns_for_dags
query, triggered_date_by_dag = DagModel.dags_needing_dagruns(session)
File "/opt/airflow/airflow-core/src/airflow/models/dag.py", line 2412, in
dags_needing_dagruns
if not dag_ready(dag_id, cond=ser_dag.dag.timetable.asset_condition,
statuses=statuses):
File "/opt/airflow/airflow-core/src/airflow/models/serialized_dag.py",
line 529, in dag
return SerializedDAG.from_dict(data)
File
"/opt/airflow/airflow-core/src/airflow/serialization/serialized_objects.py",
line 1795, in from_dict
return cls.deserialize_dag(serialized_obj["dag"])
File
"/opt/airflow/airflow-core/src/airflow/serialization/serialized_objects.py",
line 1698, in deserialize_dag
raise RuntimeError(
RuntimeError: Encoded dag object has no dag_id key. You may need to run
`airflow dags reserialize`.
```
### What you think should happen instead?
_No response_
### How to reproduce
1. Create a airflow deployment with 2.10.5
2. create some dags runs
3. migrate to 3.0.0
4
### Operating System
Linux
### Versions of Apache Airflow Providers
_No response_
### Deployment
Other
### 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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