How to stop celery worker process

Try this in terminal

ps aux|grep 'celery worker'

You will see like this

username  29042  0.0  0.6  23216 14356 pts/1    S+   00:18   0:01 /bin/celery worker ...

Then kill process id by

sudo kill -9 process_id # here 29042

If you have multiple processes, then you have to kill all process id using above kill commmand

sudo kill -9 id1 id2 id3 ...

From the celery doc

ps auxww | grep 'celery worker' | awk '{print $2}' | xargs kill -9

OR if you are running celeryd

ps auxww | grep celeryd | awk '{print $2}' | xargs kill -9

Note

If you are running celery in supervisor, even though kill the process, it automatically restarts(if autorestart=True in supervisor script).

celery -A proj control shutdown

Edited, incremeting a litte bit.

You should use this command from the root of your project, the "proj" is the name of your project, for instance if your Django project is called DjangoApp the command should look like this

celery -a DjangApp control shutdown

this should/will stop your celery worker from the project

ps auxww | grep 'celery worker' | grep -v " grep " | awk '{print $2}' | xargs kill -9

this one is very similar to one presented before but improved because avoid the error that shows when attempt to kill the grep process..

pkill -f "celery worker"

easy to kill process by string patterns