gunicorn.errors.HaltServer:

Question

I've installed gunicorn inside my virtualenv.

From this directory:

manage.py
/onbytes/wsgi.py

I run the following:

gunicorn onbytes.wsgi:application

And I get the following error:

Traceback (most recent call last):
  File "/home/ymorin007/.virtualenvs/onbytes.com/bin/gunicorn", line 9, in <module>
    load_entry_point('gunicorn==19.0.0', 'console_scripts', 'gunicorn')()
  File "/home/ymorin007/.virtualenvs/onbytes.com/local/lib/python2.7/site-packages/gunicorn/app/wsgiapp.py", line 74, in run
    WSGIApplication("%(prog)s [OPTIONS] [APP_MODULE]").run()
  File "/home/ymorin007/.virtualenvs/onbytes.com/local/lib/python2.7/site-packages/gunicorn/app/base.py", line 166, in run
    super(Application, self).run()
  File "/home/ymorin007/.virtualenvs/onbytes.com/local/lib/python2.7/site-packages/gunicorn/app/base.py", line 71, in run
    Arbiter(self).run()
  File "/home/ymorin007/.virtualenvs/onbytes.com/local/lib/python2.7/site-packages/gunicorn/arbiter.py", line 169, in run
    self.manage_workers()
  File "/home/ymorin007/.virtualenvs/onbytes.com/local/lib/python2.7/site-packages/gunicorn/arbiter.py", line 477, in manage_workers
    self.spawn_workers()
  File "/home/ymorin007/.virtualenvs/onbytes.com/local/lib/python2.7/site-packages/gunicorn/arbiter.py", line 537, in spawn_workers
    time.sleep(0.1 * random.random())
  File "/home/ymorin007/.virtualenvs/onbytes.com/local/lib/python2.7/site-packages/gunicorn/arbiter.py", line 209, in handle_chld
    self.reap_workers()
  File "/home/ymorin007/.virtualenvs/onbytes.com/local/lib/python2.7/site-packages/gunicorn/arbiter.py", line 459, in reap_workers
    raise HaltServer(reason, self.WORKER_BOOT_ERROR)
gunicorn.errors.HaltServer: <HaltServer 'Worker failed to boot.' 3>

running gunicorn onbytes.wsgi:application --preload will get me this error:

Traceback (most recent call last):
  File "/home/ymorin007/.virtualenvs/onbytes.com/bin/gunicorn", line 9, in <module>
    load_entry_point('gunicorn==19.0.0', 'console_scripts', 'gunicorn')()
  File "/home/ymorin007/.virtualenvs/onbytes.com/local/lib/python2.7/site-packages/gunicorn/app/wsgiapp.py", line 74, in run
    WSGIApplication("%(prog)s [OPTIONS] [APP_MODULE]").run()
  File "/home/ymorin007/.virtualenvs/onbytes.com/local/lib/python2.7/site-packages/gunicorn/app/base.py", line 166, in run
    super(Application, self).run()
  File "/home/ymorin007/.virtualenvs/onbytes.com/local/lib/python2.7/site-packages/gunicorn/app/base.py", line 71, in run
    Arbiter(self).run()
  File "/home/ymorin007/.virtualenvs/onbytes.com/local/lib/python2.7/site-packages/gunicorn/arbiter.py", line 57, in __init__
    self.setup(app)
  File "/home/ymorin007/.virtualenvs/onbytes.com/local/lib/python2.7/site-packages/gunicorn/arbiter.py", line 113, in setup
    self.app.wsgi()
  File "/home/ymorin007/.virtualenvs/onbytes.com/local/lib/python2.7/site-packages/gunicorn/app/base.py", line 66, in wsgi
    self.callable = self.load()
  File "/home/ymorin007/.virtualenvs/onbytes.com/local/lib/python2.7/site-packages/gunicorn/app/wsgiapp.py", line 65, in load
    return self.load_wsgiapp()
  File "/home/ymorin007/.virtualenvs/onbytes.com/local/lib/python2.7/site-packages/gunicorn/app/wsgiapp.py", line 52, in load_wsgiapp
    return util.import_app(self.app_uri)
  File "/home/ymorin007/.virtualenvs/onbytes.com/local/lib/python2.7/site-packages/gunicorn/util.py", line 356, in import_app
    __import__(module)
  File "/home/ymorin007/sites/onbytes.com/src/onbytes/wsgi.py", line 8, in <module>
    from django.core.wsgi import get_wsgi_application
ImportError: No module named django.core.wsgi

Running in debug mode could provide some more useful info `gunicorn onbytes.wsgi:application --debug --log-level debug`. — famousgarkin, Jul 08 '14 at 19:19

score 35 · Answer 1 · answered Sep 05 '14 at 15:32

35

Probably there is an issue in your application, not in gunicorn.

Try:

gunicorn --log-file=- onbytes.wsgi:application

Since the version R19, Gunicorn doesn’t log by default in the console and the --debug option was deprecated.

answered Sep 05 '14 at 15:32

Mauro

498
3
5

5

This is _the_ first solution for every gunicorn startup error. – mknaf Nov 24 '14 at 13:12

score 22 · Answer 2 · edited Jan 06 '18 at 17:27

22

Adding --preload the gunincorn command showed me that I had to do :

pip install ordereddict

That package was missing.

edited Jan 06 '18 at 17:27

Alex Jolig

12,826
19
125
158

answered May 27 '15 at 15:25

Hanynowsky

2,930
5
30
43

2

Thanks. In my case, adding the `--preload` was the secret ingredient to get useful debug output that pointed at the underlying error in my app. `--log-file` and `--log-level debug` did not help much. – zlovelady Apr 16 '17 at 22:41
1

This. this. this. All of the other "show me better logs" options only displayed the same error in different places. This one also showed me the actual problem - in my case it was missing an __init__.py – TheGrimmScientist Jul 15 '17 at 00:37
I would make a version of this the correct answer if I could -- `gunicorn --preload` actually gave me a traceback to figure out what was failing – Alvin Aug 05 '19 at 04:29

score 12 · Answer 3 · answered Aug 27 '14 at 21:12

12

I had a similar problem and it was because i was running the command in the wrong directory. In a standard django installation, try running gunicorn in the same directory that 'manage.py'

answered Aug 27 '14 at 21:12

Micho

918
9
11

score 0 · Answer 4 · answered May 06 '19 at 14:05

0

in my case after adding --preload to Procfile, I understand that I should install psycopg2-binary with pip:

pip install psycopg2-binary

answered May 06 '19 at 14:05

Ali-T

161
12

gunicorn.errors.HaltServer:

4 Answers4

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