enayati239 opened a new issue, #53905:
URL: https://github.com/apache/airflow/issues/53905
### Apache Airflow version
3.0.3
### If "Other Airflow 2 version" selected, which one?
_No response_
### What happened?
Here is the error on the first try. But on the second try, the task was
successful with no error. While I get the error and it is still running/trying
the DAG is not shown in the UI anymore. The problem happens randomly on any
task of the DAG. The task is Kubernetes POD operator calling a Python module
under docker. It's on AKS and the database of Airflow is Postgres.
Task failed with exception: source="task"
AirflowRuntimeError: API_SERVER_ERROR: {'status_code': 409, 'message':
'Server returned error', 'detail': {'detail': {'reason': 'Unique constraint
violation', 'statement': 'INSERT INTO rendered_task_instance_fields (dag_id,
task_id, run_id, map_index, rendered_fields, k8s_pod_yaml) VALUES (%(dag_id)s,
%(task_id)s, %(run_id)s, %(map_index)s, %(rendered_fields)s,
%(k8s_pod_yaml)s)', 'orig_error': 'duplicate key value violates unique
constraint "rendered_task_instance_fields_pkey"\nDETAIL: Key (dag_id, task_id,
run_id, map_index)=(sdds_dag_view_snapshot,
task_group3.snapshot_START_sec_bond, manual__2025-07-29T21:54:12.221693+00:00,
-1) already exists.\n', 'message': 'Serious error when handling your request.
Check logs for more details - you will find it in api server when you look for
ID R8X88i8e'}}}
### What you think should happen instead?
It should not get that error. Also the DAG has to keep presenting in the UI
since it is parsed correctly.
### How to reproduce
Not sure if anyone can reproduce it since it is random but let me know if
more info needed. Thanks
### Operating System
Azure - AKS running container / docker.
### Versions of Apache Airflow Providers
3.0.3 (latest version)
### Deployment
Docker-Compose
### 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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