[GitHub] [airflow] potiuk commented on issue #17185: Unable to start airflow webserver in the background in docker container.

[GitBox <gi...@apache.org>]

potiuk commented on issue #17185:
URL: https://github.com/apache/airflow/issues/17185#issuecomment-885491972


   There is something wrong with your conda base installation. I could not reproduced in using the official image so I used yours. And airflow is simply not working in your image (likely the master process locked itself out  when exiting) - you have errors in your ~/airlfow/webserver-err.log :
   
   ```
     File "/opt/conda/lib/python3.8/site-packages/psutil/_common.py", line 447, in wrapper
       ret = self._cache[fun]
   AttributeError: _cache
   
   During handling of the above exception, another exception occurred:
   
   Traceback (most recent call last):
     File "/opt/conda/bin/airflow", line 8, in <module>
       sys.exit(main())
     File "/opt/conda/lib/python3.8/site-packages/airflow/__main__.py", line 40, in main
       args.func(args)
     File "/opt/conda/lib/python3.8/site-packages/airflow/cli/cli_parser.py", line 48, in command
       return func(*args, **kwargs)
     File "/opt/conda/lib/python3.8/site-packages/airflow/utils/cli.py", line 91, in wrapper
       return f(*args, **kwargs)
     File "/opt/conda/lib/python3.8/site-packages/airflow/cli/commands/webserver_command.py", line 480, in webserver
       monitor_gunicorn(gunicorn_master_proc.pid)
     File "/opt/conda/lib/python3.8/site-packages/airflow/cli/commands/webserver_command.py", line 445, in monitor_gunicorn
       GunicornMonitor(
     File "/opt/conda/lib/python3.8/site-packages/airflow/cli/commands/webserver_command.py", line 212, in start
       self._check_workers()
     File "/opt/conda/lib/python3.8/site-packages/airflow/cli/commands/webserver_command.py", line 227, in _check_workers
       num_ready_workers_running = self._get_num_ready_workers_running()
     File "/opt/conda/lib/python3.8/site-packages/airflow/cli/commands/webserver_command.py", line 131, in _get_num_ready_workers_running
       workers = psutil.Process(self.gunicorn_master_proc.pid).children()
     File "/opt/conda/lib/python3.8/site-packages/psutil/__init__.py", line 272, in wrapper
       return fun(self, *args, **kwargs)
     File "/opt/conda/lib/python3.8/site-packages/psutil/__init__.py", line 905, in children
       child = Process(pid)
     File "/opt/conda/lib/python3.8/site-packages/psutil/__init__.py", line 326, in __init__
       self._init(pid)
     File "/opt/conda/lib/python3.8/site-packages/psutil/__init__.py", line 354, in _init
       self.create_time()
     File "/opt/conda/lib/python3.8/site-packages/psutil/__init__.py", line 710, in create_time
       self._create_time = self._proc.create_time()
     File "/opt/conda/lib/python3.8/site-packages/psutil/_pslinux.py", line 1576, in wrapper
       return fun(self, *args, **kwargs)
     File "/opt/conda/lib/python3.8/site-packages/psutil/_pslinux.py", line 1788, in create_time
       ctime = float(self._parse_stat_file()['create_time'])
     File "/opt/conda/lib/python3.8/site-packages/psutil/_pslinux.py", line 1576, in wrapper
       return fun(self, *args, **kwargs)
     File "/opt/conda/lib/python3.8/site-packages/psutil/_common.py", line 450, in wrapper
       return fun(self)
     File "/opt/conda/lib/python3.8/site-packages/psutil/_pslinux.py", line 1619, in _parse_stat_file
       data = f.read()
     File "/opt/conda/lib/python3.8/site-packages/airflow/cli/commands/webserver_command.py", line 435, in kill_proc
       if gunicorn_master_proc.poll() is not None:
   AttributeError: 'Process' object has no attribute 'poll'
   ```
   
   You can try to diagnose your image (likely it is based on some old/unsupported base images. However it's definitly somethin you have to investigate on your own.
   
   Instead I heartily recommend to you the official image of Airflow image - it is based on LTS buster slim image (And we always use most recent images with all security patches. There are various ways you can customize and extend image and we have comprehensive documentation: https://airflow.apache.org/docs/docker-stack/index.html and we will be able to help you if you have problems.
   


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: commits-unsubscribe@airflow.apache.org

For queries about this service, please contact Infrastructure at:
users@infra.apache.org