Supervisor sock file missing

I installed Supervisor (v3.1.2) to manage ElastAlert but when I run supervisorctl it sometimes throws this error:

unix:///var/run/supervisor.sock no such file

and other times it throws this error:

unix:///tmp/supervisor.sock no such file

I'll note that it does bring me to the supervisor> prompt, but commands after that are the same errors as above. The /etc/supervisor/supervisor.conf file is configured to use /var/run, which seems at odds with the second error.

I created a link to /etc/supervisor.conf, as other help pages suggested this, but it didn't make a difference.

Two odd things, when I first installed Supervisor it worked fine, but it was after a reboot this problem started. And the other odd thing is that ElastAlert starts after a reboot, and continues to perform normally. So while it might be having errors it's doing its job. Not a show-stopper, but I would like for this to work properly.

Any ideas?

This happens to me when the physical machine reboots. My machines run Ubuntu, ranging from 12.04 to 16.04. I resolve it by restarting supervisor as a service.

sudo service supervisor stop
sudo service supervisor start 

(This somehow works a lot better than simply using 'restart')

Obviously this is not an ideal fix if you depend on Supervisor to start other programs for you without needing to be restarted after every reboot. I am currently looking into systemd like others suggested.

Edit: If you are on Ubuntu 16.04, this answer might fix all your problem as it did mine. You should 'enable' systemd to start supervisord. https://unix.stackexchange.com/a/291098

Here is in my case. Let say the error is unix:///var/run/supervisord.sock no such file when typing this command sudo supervisorctl status

So my solution is:

1. Open supervisor config file sudo nano /etc/supervisor/supervisord.conf
2. Check the line where serverurl of supervisorctl path pointed.

[supervisorctl]
serverurl=unix:///var/run/supervisord.sock ; use a unix:// URL  for a unix socket

3. Change path serverurl to unix:///var/run/supervisor.sock. See the difference of supervisord and supervisor
4. Restart supervisor service supervisor restart
5. Check status supervisor sudo service supervisor status
6. Check again if error is still present sudo supervisorctl status if so, try delete your config in /etc/supervisor/conf.d/ ... or reinstall supervisor

I had this problem while hosting my django app. My machine is aws=>ec2=>ubuntu 18.x

I had wrong configuration of my gunicorn bash file. when i fixed the path issue in gunicorn file. supervisor started working back.

make sure you configured it well:

DJANGODIR=/home/ubuntu/<my-project>               # Django project directory
SOCKFILE=/home/ubuntu/<my-project>/run/gunicorn.sock  # we will communicte using this unix socket