tanvn commented on issue #31442:
URL: https://github.com/apache/airflow/issues/31442#issuecomment-2042056903
I faced a similar issue today with Airflow 2.8.4
Error log from the scheduler
```
ERROR! Maximum number of retries (20) reached.
Last check result:
$ airflow db check
Failed to import airflow_local_settings.
Traceback (most recent call last):
File "/usr/local/lib/python3.10/site-packages/airflow/settings.py", line
500, in import_local_settings
import airflow_local_settings
File "/opt/airflow/config/airflow_local_settings.py", line 2, in <module>
from airflow.www.utils import UIAlert
File "/usr/local/lib/python3.10/site-packages/airflow/www/utils.py", line
44, in <module>
from airflow.models.dagrun import DagRun
File "/usr/local/lib/python3.10/site-packages/airflow/models/dagrun.py",
line 59, in <module>
from airflow.models.taskinstance import TaskInstance as TI
File
"/usr/local/lib/python3.10/site-packages/airflow/models/taskinstance.py", line
99, in <module>
from airflow.sentry import Sentry
File "/usr/local/lib/python3.10/site-packages/airflow/sentry.py", line
198, in <module>
Sentry = ConfiguredSentry()
File "/usr/local/lib/python3.10/site-packages/airflow/sentry.py", line 90,
in __init__
executor_class, _ =
ExecutorLoader.import_default_executor_cls(validate=False)
File
"/usr/local/lib/python3.10/site-packages/airflow/executors/executor_loader.py",
line 167, in import_default_executor_cls
executor, source = cls.import_executor_cls(executor_name,
validate=validate)
File
"/usr/local/lib/python3.10/site-packages/airflow/executors/executor_loader.py",
line 141, in import_executor_cls
return _import_and_validate(cls.executors[executor_name]),
ConnectorSource.CORE
File
"/usr/local/lib/python3.10/site-packages/airflow/executors/executor_loader.py",
line 135, in _import_and_validate
executor = import_string(path)
File
"/usr/local/lib/python3.10/site-packages/airflow/utils/module_loading.py", line
39, in import_string
module = import_module(module_path)
File "/usr/local/lib/python3.10/importlib/__init__.py", line 126, in
import_module
return _bootstrap._gcd_import(name[level:], package, level)
File
"/usr/local/lib/python3.10/site-packages/airflow/providers/cncf/kubernetes/executors/kubernetes_executor.py",
line 40, in <module>
from airflow.providers.cncf.kubernetes.pod_generator import
PodMutationHookException, PodReconciliationError
File
"/usr/local/lib/python3.10/site-packages/airflow/providers/cncf/kubernetes/pod_generator.py",
line 50, in <module>
from airflow.providers.cncf.kubernetes.pod_generator_deprecated import (
File
"/usr/local/lib/python3.10/site-packages/airflow/providers/cncf/kubernetes/pod_generator_deprecated.py",
line 33, in <module>
from airflow.utils.hashlib_wrapper import md5
File
"/usr/local/lib/python3.10/site-packages/airflow/utils/hashlib_wrapper.py",
line 26, in <module>
from airflow import PY39
ImportError: cannot import name 'PY39' from partially initialized module
'airflow' (most likely due to a circular import)
(/usr/local/lib/python3.10/site-packages/airflow/__init__.py)
Traceback (most recent call last):
File "/usr/local/bin/airflow", line 5, in <module>
from airflow.__main__ import main
File "/usr/local/lib/python3.10/site-packages/airflow/__init__.py", line
68, in <module>
settings.initialize()
File "/usr/local/lib/python3.10/site-packages/airflow/settings.py", line
552, in initialize
import_local_settings()
File "/usr/local/lib/python3.10/site-packages/airflow/settings.py", line
500, in import_local_settings
import airflow_local_settings
File "/opt/airflow/config/airflow_local_settings.py", line 2, in <module>
from airflow.www.utils import UIAlert
File "/usr/local/lib/python3.10/site-packages/airflow/www/utils.py", line
44, in <module>
from airflow.models.dagrun import DagRun
File "/usr/local/lib/python3.10/site-packages/airflow/models/dagrun.py",
line 59, in <module>
from airflow.models.taskinstance import TaskInstance as TI
File
"/usr/local/lib/python3.10/site-packages/airflow/models/taskinstance.py", line
99, in <module>
from airflow.sentry import Sentry
File "/usr/local/lib/python3.10/site-packages/airflow/sentry.py", line
198, in <module>
Sentry = ConfiguredSentry()
File "/usr/local/lib/python3.10/site-packages/airflow/sentry.py", line 90,
in __init__
executor_class, _ =
ExecutorLoader.import_default_executor_cls(validate=False)
File
"/usr/local/lib/python3.10/site-packages/airflow/executors/executor_loader.py",
line 167, in import_default_executor_cls
executor, source = cls.import_executor_cls(executor_name,
validate=validate)
File
"/usr/local/lib/python3.10/site-packages/airflow/executors/executor_loader.py",
line 141, in import_executor_cls
return _import_and_validate(cls.executors[executor_name]),
ConnectorSource.CORE
File
"/usr/local/lib/python3.10/site-packages/airflow/executors/executor_loader.py",
line 135, in _import_and_validate
executor = import_string(path)
File
"/usr/local/lib/python3.10/site-packages/airflow/utils/module_loading.py", line
39, in import_string
module = import_module(module_path)
File "/usr/local/lib/python3.10/importlib/__init__.py", line 126, in
import_module
return _bootstrap._gcd_import(name[level:], package, level)
File
"/usr/local/lib/python3.10/site-packages/airflow/providers/cncf/kubernetes/executors/kubernetes_executor.py",
line 40, in <module>
from airflow.providers.cncf.kubernetes.pod_generator import
PodMutationHookException, PodReconciliationError
File
"/usr/local/lib/python3.10/site-packages/airflow/providers/cncf/kubernetes/pod_generator.py",
line 50, in <module>
from airflow.providers.cncf.kubernetes.pod_generator_deprecated import (
File
"/usr/local/lib/python3.10/site-packages/airflow/providers/cncf/kubernetes/pod_generator_deprecated.py",
line 33, in <module>
from airflow.utils.hashlib_wrapper import md5
File
"/usr/local/lib/python3.10/site-packages/airflow/utils/hashlib_wrapper.py",
line 26, in <module>
from airflow import PY39
ImportError: cannot import name 'PY39' from partially initialized module
'airflow' (most likely due to a circular import)
(/usr/local/lib/python3.10/site-packages/airflow/__init__.py)
```
Setting `_AIRFLOW__SKIP_DATABASE_EXECUTOR_COMPATIBILITY_CHECK=1` does not
work.
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