gunicorn.errors.HaltServer: <HaltServer 'Worker failed to boot.' 3

Hello, I had the same problem. I solved it by deleting all comments in the service file. Hope it works also for you.

Hello alejandovilches, I made sure to have my application name correctly ‘myapp.wsgi:application’ in ‘cat /etc/systemd/system/gunicorn.service’ file.I had a type earlier and once it is corrected, I am able to unblock myself. Best regards

Hello @bengaltiger, I was deploying my app and it rise the same error that you have. Did you know how to fix it? I’m completely blocked too.

It will be great if i have the solution.

Hello DO, please let me know if you have any solution on this? I’m completely blocked without deploying my app on this server. I appreciate if DO can provide resolution asap!

Here is the gunicorn version that I’ve on my server.

pip show gunicorn
Name: gunicorn
Version: 20.0.2
Summary: WSGI HTTP Server for UNIX
Home-page: http://gunicorn.org

I changed the files as follows but the error is same.

cat /etc/systemd/system/gunicorn.socket
[Unit]
Description=gunicorn socket

[Socket]
ListenStream=/run/gunicorn.sock
#ListenStream=/home/xx/myproject/myapp/myapp.sock

[Install]
WantedBy=sockets.target

$ cat /etc/systemd/system/gunicorn.service
[Unit]
Description=gunicorn daemon
Requires=gunicorn.socket
After=network.target

[Service]
User=xx
Group=www-data
WorkingDirectory=/home/xx/myproject/myapp/myapp
WorkingDirectory=/home/xx/myproject/myapp
ExecStart=/home/xx/myproject/xxenv/bin/gunicorn \
          --access-logfile - \
          --workers 3 \
          --bind unix:/run/gunicorn.sock \
          myapp.wsgi:application

[Install]
WantedBy=multi-user.target
$

Hi Bobby,

Here is the files that I used with different lines. Please observe the commented lines too because I tried with them too.

cat /etc/systemd/system/gunicorn.socket
[Unit]
Description=gunicorn socket

[Socket]
#ListenStream=/run/gunicorn.sock
ListenStream=/home/xx/myproject/myapp/myapp.sock

[Install]
WantedBy=sockets.target

$ cat /etc/systemd/system/gunicorn.service
[Unit]
Description=gunicorn daemon
Requires=gunicorn.socket
After=network.target

[Service]
User=xx
#User=root
Group=www-data
#WorkingDirectory=/home/xx/myproject/myapp/myapp
WorkingDirectory=/home/xx/myproject/myapp
ExecStart=/home/xx/myproject/xxenv/bin/gunicorn \
          --access-logfile - \
          --workers 3 \
          --bind unix:/home/xx/myproject/myapp/myapp.sock \
          #--bind unix:/run/gunicorn.sock \
          myapp.wsgi:application

[Install]
WantedBy=sockets.target
$

Thanks

Hello Bobby, thank you for your answer. Like I pointed in my question, I followed the same document and tried all the possible ways but there is no luck. I believe this is a bug in the current gunicorn software version. I’m not sure whether this has been verified in DO testing? I will point you whatever different settings that I used in gunicorn.socket and service files.

Hello,

It looks like that the Gunicorn socket is missing, I would recommend following these steps here on how to create the socket and the service files:

https://www.digitalocean.com/community/tutorials/how-to-set-up-django-with-postgres-nginx-and-gunicorn-on-ubuntu-18-04#creating-systemd-socket-and-service-files-for-gunicorn

And also if this is still not working, try following the steps here on how to test the socket activation here:

https://www.digitalocean.com/community/tutorials/how-to-set-up-django-with-postgres-nginx-and-gunicorn-on-ubuntu-18-04#testing-socket-activation

Hope that this helps!

Regards, Bobby