Question: Celery status command shows "No nodes replied within time constraint." How can I fix this?

Answer:

I faced this issue and resolved it by restarting the Celery service. Here's what worked for me:

1. Restart the Celery Service:

   sudo service celery restart
   

2. Check the Status Again:

   celery -A prototype.celeryapp:celery_app status
   

After this, the command showed the correct output with the workers online:

-> celery@az-sand-app-1: OK
-> celery@CeleryWorker-1: OK
2 nodes online.

This fixed the issue. Ensure your message broker is running and there are no network issues.