Jaxing opened a new issue #19040:
URL: https://github.com/apache/airflow/issues/19040
### Apache Airflow version
2.2.0 (latest released)
### Operating System
Kubernetes
### Versions of Apache Airflow Providers
_No response_
### Deployment
Other
### Deployment details
Deploying using the docker image and a custom deployment file
### What happened
Most dags opens fine but some fails and shows this error page
```
Python version: 3.6.15
Airflow version: 2.2.0
Node: airflow-86c589ddb9-q9sdg
-------------------------------------------------------------------------------
Traceback (most recent call last):
File "/home/airflow/.local/lib/python3.6/site-packages/flask/app.py", line
2447, in wsgi_app
response = self.full_dispatch_request()
File "/home/airflow/.local/lib/python3.6/site-packages/flask/app.py", line
1952, in full_dispatch_request
rv = self.handle_user_exception(e)
File "/home/airflow/.local/lib/python3.6/site-packages/flask/app.py", line
1821, in handle_user_exception
reraise(exc_type, exc_value, tb)
File "/home/airflow/.local/lib/python3.6/site-packages/flask/_compat.py",
line 39, in reraise
raise value
File "/home/airflow/.local/lib/python3.6/site-packages/flask/app.py", line
1950, in full_dispatch_request
rv = self.dispatch_request()
File "/home/airflow/.local/lib/python3.6/site-packages/flask/app.py", line
1936, in dispatch_request
return self.view_functions[rule.endpoint](**req.view_args)
File
"/home/airflow/.local/lib/python3.6/site-packages/airflow/www/auth.py", line
51, in decorated
return func(*args, **kwargs)
File
"/home/airflow/.local/lib/python3.6/site-packages/airflow/www/decorators.py",
line 109, in view_func
return f(*args, **kwargs)
File
"/home/airflow/.local/lib/python3.6/site-packages/airflow/www/decorators.py",
line 72, in wrapper
return f(*args, **kwargs)
File
"/home/airflow/.local/lib/python3.6/site-packages/airflow/utils/session.py",
line 70, in wrapper
return func(*args, session=session, **kwargs)
File
"/home/airflow/.local/lib/python3.6/site-packages/airflow/www/views.py", line
2283, in tree
.limit(num_runs)
File
"/home/airflow/.local/lib/python3.6/site-packages/sqlalchemy/orm/query.py",
line 3373, in all
return list(self)
File
"/home/airflow/.local/lib/python3.6/site-packages/sqlalchemy/orm/loading.py",
line 100, in instances
cursor.close()
File
"/home/airflow/.local/lib/python3.6/site-packages/sqlalchemy/util/langhelpers.py",
line 70, in __exit__
with_traceback=exc_tb,
File
"/home/airflow/.local/lib/python3.6/site-packages/sqlalchemy/util/compat.py",
line 182, in raise_
raise exception
File
"/home/airflow/.local/lib/python3.6/site-packages/sqlalchemy/orm/loading.py",
line 80, in instances
rows = [proc(row) for row in fetch]
File
"/home/airflow/.local/lib/python3.6/site-packages/sqlalchemy/orm/loading.py",
line 80, in <listcomp>
rows = [proc(row) for row in fetch]
File
"/home/airflow/.local/lib/python3.6/site-packages/sqlalchemy/orm/loading.py",
line 588, in _instance
populators,
File
"/home/airflow/.local/lib/python3.6/site-packages/sqlalchemy/orm/loading.py",
line 725, in _populate_full
dict_[key] = getter(row)
File
"/home/airflow/.local/lib/python3.6/site-packages/sqlalchemy/sql/sqltypes.py",
line 1723, in process
return loads(value)
ValueError: unsupported pickle protocol: 5
```
No python versions has changed other than possibly the ones in the airflow
image.
### What you expected to happen
Display the dag as usual
### How to reproduce
Set up airflow 2.1.3 in kubernetes (will probably work with the helm
charts). Create some dags and run some of them , not entirely sure what causes
it but the one that fails has a default config that you can run it with. Then
change airflow version to 2.2.0 and run the db upgrade and try to open tree
view for you dags.
### 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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