ethan

Worker crashed with invalid file descriptor error when use with celery and gevent

1

### Environment os: Ubuntu 20.04 LTS broker: redis 4.0.9 python: 3.8 celery: 5.1.2 billiard: 3.6.4.0 gevent: 21.1.2 ### Celery startup config supervisor ``` [program:celery_worker_email] environment = C_FORCE_ROOT="true" command = /var/www/backend/venv/bin/celery...