parisni opened a new issue #19822:
URL: https://github.com/apache/airflow/issues/19822
### Official Helm Chart version
1.3.0 (latest released)
### Apache Airflow version
2.2.1
### Kubernetes Version
1.2.1
### Helm Chart configuration
```yaml
airflow:
env:
- name: AIRFLOW__SCHEDULER__USE_ROW_LEVEL_LOCKING
value: "True"
webserver:
livenessProbe:
initialDelaySeconds: 100
timeoutSeconds: 100
failureThreshold: 20
periodSeconds: 25
readinessProbe:
initialDelaySeconds: 100
timeoutSeconds: 100
failureThreshold: 20
periodSeconds: 25
scheduler:
replicas: 2
executor: CeleryExecutor
```
### Docker Image customisations
_No response_
### What happened
```
duplicate key value violates unique constraint "serialized_dag_pkey"
DETAIL: Key (dag_id)=(test_dag_454) already exists.
scheduler [SQL: INSERT INTO serialized_dag (dag_id, fileloc, fileloc_hash,
data, last_updated, dag_hash) VALUES (%(dag_id)s, %(fileloc)s,
%(fileloc_hash)s, scheduler [parameters: {'dag_id': 'test_dag_454', 'fileloc':
'/opt/airflow/dags/repo/test_dag_454.py', 'fileloc_hash': 14390114031793844,
'data': '{"__vers scheduler (Background on this error at:
http://sqlalche.me/e/13/gkpj)
```
### What you expected to happen
_No response_
### How to reproduce
_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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