I am aware that very similar questions have been asked previously but I have found these have tended to include Docker, which I am not using at this time, nor do I have installed. I am led to believe that WSL2 should be an alternative to Docker regarding running Airflow on Windows.
I am using WSL2 on my Windows 11 laptop and have installed Apache-Airflow from a tutorial from the following link: https://coding-stream-of-consciousness.com/2018/11/06/apache-airflow-windows-10-install-ubuntu/
On WSL2 I have:
- Python version 3.8.10
- Pip version 20.0.2
- Apache-Airflow 2.4.1 (I believe)
I have run the following commands (as per the tutorial) with no issue:
sudo apt-get install software-properties-common
sudo apt-add-repository universe
sudo apt-get update
sudo apt-get install python-pip
sudo pip install apache-airflow #I had path issues without 'sudo' command
But when I attempt to use the 'airflow' command in the WSL2 Ubuntu terminal, I am greeted with the following error:
$ airflow
Unable to load the config, contains a configuration error.
Traceback (most recent call last):
File "/usr/lib/python3.8/logging/config.py", line 563, in configure
handler = self.configure_handler(handlers[name])
File "/usr/lib/python3.8/logging/config.py", line 744, in configure_handler
result = factory(**kwargs)
File "/usr/local/lib/python3.8/dist-packages/airflow/utils/log/file_processor_handler.py", line 45, in __init__
self.filename_template, self.filename_jinja_template = parse_template_string(filename_template)
File "/usr/local/lib/python3.8/dist-packages/airflow/utils/helpers.py", line 165, in parse_template_string
import jinja2
File "/usr/lib/python3/dist-packages/jinja2/__init__.py", line 33, in <module>
from jinja2.environment import Environment, Template
File "/usr/lib/python3/dist-packages/jinja2/environment.py", line 15, in <module>
from jinja2 import nodes
File "/usr/lib/python3/dist-packages/jinja2/nodes.py", line 23, in <module>
from jinja2.utils import Markup
File "/usr/lib/python3/dist-packages/jinja2/utils.py", line 656, in <module>
from markupsafe import Markup, escape, soft_unicode
ImportError: cannot import name 'soft_unicode' from 'markupsafe' (/usr/local/lib/python3.8/dist-packages/markupsafe/__init__.py)
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/usr/local/bin/airflow", line 5, in <module>
from airflow.__main__ import main
File "/usr/local/lib/python3.8/dist-packages/airflow/__init__.py", line 46, in <module>
settings.initialize()
File "/usr/local/lib/python3.8/dist-packages/airflow/settings.py", line 564, in initialize
LOGGING_CLASS_PATH = configure_logging()
File "/usr/local/lib/python3.8/dist-packages/airflow/logging_config.py", line 74, in configure_logging
raise e
File "/usr/local/lib/python3.8/dist-packages/airflow/logging_config.py", line 69, in configure_logging
dictConfig(logging_config)
File "/usr/lib/python3.8/logging/config.py", line 808, in dictConfig
dictConfigClass(config).configure()
File "/usr/lib/python3.8/logging/config.py", line 570, in configure
raise ValueError('Unable to configure handler '
ValueError: Unable to configure handler 'processor'
I have googled the ValueError extensively and can't find any clear solutions that don't involve Docker.
Any insight into the error would be much appreciated!
CodePudding user response：
You should install airflow using constraints.
This is the only way installation of airflow is guaranteed to work.