错误。 HaltServer: < HaltServer“ Worker 未能启动。”3 > django

我有一个姜戈应用程序，并试图建立它与枪角先后与主管和 nginx。

这个应用程序使用普通的 django 命令运行，非常类似于 python manage.py runserver

我安装的枪角兽使用点像 pip install gunicorn和 django 版本是 1.5.3

当我在虚拟环境中运行下面的命令时，如下所示

gunicorn hello.wsgi:application -b xx.xxx.xxx.xx:8000和面临的错误

Traceback (most recent call last):
File "/root/Envs/proj/bin/gunicorn", line 9, in <module>
load_entry_point('gunicorn==19.0.0', 'console_scripts', 'gunicorn')()
File "/root/Envs/proj/local/lib/python2.7/site-packages/gunicorn/app/wsgiapp.py", line 74, in run
WSGIApplication("%(prog)s [OPTIONS] [APP_MODULE]").run()
File "/root/Envs/proj/local/lib/python2.7/site-packages/gunicorn/app/base.py", line 166, in run
super(Application, self).run()
File "/root/Envs/proj/local/lib/python2.7/site-packages/gunicorn/app/base.py", line 71, in run
Arbiter(self).run()
File "/root/Envs/proj/local/lib/python2.7/site-packages/gunicorn/arbiter.py", line 169, in run
self.manage_workers()
File "/root/Envs/proj/local/lib/python2.7/site-packages/gunicorn/arbiter.py", line 477, in manage_workers
self.spawn_workers()
File "/root/Envs/proj/local/lib/python2.7/site-packages/gunicorn/arbiter.py", line 537, in spawn_workers
time.sleep(0.1 * random.random())
File "/root/Envs/proj/local/lib/python2.7/site-packages/gunicorn/arbiter.py", line 209, in handle_chld
self.reap_workers()
File "/root/Envs/proj/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>

那么，为什么实际上会遇到上述错误，解决办法是什么？

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小开
最佳答案

Actually the problem here was the wsgi file itself, previously before django 1.3 the wsgi file was named with an extension of .wsgi, but now in the recent versions it will be created with and extension of .py that is the wsgi file must be a python module

so the file should be hello_wsgi.py and command should be

gunicorn  hello:application -b xx.xxx.xxx.xx:8000
小开

You didn't show a full output. It probably looks like

$ gunicorn elcarweb.wsgi
[2015-10-27 21:01:47 +0000] [5429] [INFO] Starting gunicorn 19.2.1
[2015-10-27 21:01:47 +0000] [5429] [INFO] Listening at: http://127.0.0.1:8000 (5429)
[2015-10-27 21:01:47 +0000] [5429] [INFO] Using worker: sync
[2015-10-27 21:01:47 +0000] [5434] [INFO] Booting worker with pid: 5434
[2015-10-27 21:01:47 +0000] [5434] [ERROR] Exception in worker process:
Traceback (most recent call last):
File "/home/tomek/Elcar/elcarweb/env/lib/python2.7/site-packages/gunicorn/arbiter.py", line 503, in spawn_worker
worker.init_process()
File "/home/tomek/Elcar/elcarweb/env/lib/python2.7/site-packages/gunicorn/workers/base.py", line 116, in init_process
self.wsgi = self.app.wsgi()
File "/home/tomek/Elcar/elcarweb/env/lib/python2.7/site-packages/gunicorn/app/base.py", line 67, in wsgi
self.callable = self.load()
File "/home/tomek/Elcar/elcarweb/env/lib/python2.7/site-packages/gunicorn/app/wsgiapp.py", line 65, in load
return self.load_wsgiapp()
File "/home/tomek/Elcar/elcarweb/env/lib/python2.7/site-packages/gunicorn/app/wsgiapp.py", line 52, in load_wsgiapp
return util.import_app(self.app_uri)
File "/home/tomek/Elcar/elcarweb/env/lib/python2.7/site-packages/gunicorn/util.py", line 355, in import_app
__import__(module)
ImportError: No module named elcarweb.wsgi
Traceback (most recent call last):
File "/home/tomek/Elcar/elcarweb/env/lib/python2.7/site-packages/gunicorn/arbiter.py", line 503, in spawn_worker
worker.init_process()
File "/home/tomek/Elcar/elcarweb/env/lib/python2.7/site-packages/gunicorn/workers/base.py", line 116, in init_process
self.wsgi = self.app.wsgi()
File "/home/tomek/Elcar/elcarweb/env/lib/python2.7/site-packages/gunicorn/app/base.py", line 67, in wsgi
self.callable = self.load()
File "/home/tomek/Elcar/elcarweb/env/lib/python2.7/site-packages/gunicorn/app/wsgiapp.py", line 65, in load
return self.load_wsgiapp()
File "/home/tomek/Elcar/elcarweb/env/lib/python2.7/site-packages/gunicorn/app/wsgiapp.py", line 52, in load_wsgiapp
return util.import_app(self.app_uri)
File "/home/tomek/Elcar/elcarweb/env/lib/python2.7/site-packages/gunicorn/util.py", line 355, in import_app
__import__(module)
ImportError: No module named elcarweb.wsgi
[2015-10-27 21:01:47 +0000] [5434] [INFO] Worker exiting (pid: 5434)
Traceback (most recent call last):
File "/home/tomek/Elcar/elcarweb/env/bin/gunicorn", line 11, in <module>
sys.exit(run())
File "/home/tomek/Elcar/elcarweb/env/lib/python2.7/site-packages/gunicorn/app/wsgiapp.py", line 74, in run
WSGIApplication("%(prog)s [OPTIONS] [APP_MODULE]").run()
File "/home/tomek/Elcar/elcarweb/env/lib/python2.7/site-packages/gunicorn/app/base.py", line 189, in run
super(Application, self).run()
File "/home/tomek/Elcar/elcarweb/env/lib/python2.7/site-packages/gunicorn/app/base.py", line 72, in run
Arbiter(self).run()
File "/home/tomek/Elcar/elcarweb/env/lib/python2.7/site-packages/gunicorn/arbiter.py", line 170, in run
self.manage_workers()
File "/home/tomek/Elcar/elcarweb/env/lib/python2.7/site-packages/gunicorn/arbiter.py", line 473, in manage_workers
self.spawn_workers()
File "/home/tomek/Elcar/elcarweb/env/lib/python2.7/site-packages/gunicorn/arbiter.py", line 537, in spawn_workers
time.sleep(0.1 * random.random())
File "/home/tomek/Elcar/elcarweb/env/lib/python2.7/site-packages/gunicorn/arbiter.py", line 210, in handle_chld
self.reap_workers()
File "/home/tomek/Elcar/elcarweb/env/lib/python2.7/site-packages/gunicorn/arbiter.py", line 455, in reap_workers
raise HaltServer(reason, self.WORKER_BOOT_ERROR)
gunicorn.errors.HaltServer: <HaltServer 'Worker failed to boot.' 3>

Last trackback is almost the same, but before You see required informations:

ImportError: No module named elcarweb.wsgi

If You see this error, then solution is run gunicorn with --chdir=/your/app/dir parameter.

小开

I got the very same error. Gunicorn was working when executed as root, but failed this way when executed as non-privileged user. In my case I install the 'dataset' python module with 'pip install dataset' and it screwed the permissions on /usr/lib/python2.7/site-packages/dataset to be readable only by root account. On other module installed as dependency like that was normality.

Fix :

chmod -R a+rX /usr/lib/python2.7/site-packages/dataset*
chmod -R a+rX /usr/lib/python2.7/site-packages/normality*

Some another issue was with the yaml package auto-installed by pip, but I have not found what exactly. The fix was to reinstall from fedora package:

dnf -y install python-yaml
小开

I also had a similar error in Ubuntu 16.04, Django 1.11, using systemd.

My problem was that I had split my settings out into separate files; ie: instead of having all settings in project/settings.py, I have a few settings files like project/settings/dev.py.

I had to update DJANGO_SETTINGS_MODULE in the project/wsgi.py file from:

os.environ.setdefault("DJANGO_SETTINGS_MODULE", "project.settings")

to

os.environ.setdefault("DJANGO_SETTINGS_MODULE", "project.settings.dev")

then gunicorn worked.

小开

run guncorn with --preload can see the error log, like this 

gunicorn app:application --preload -b 0.0.0.0:5000

This will usually give you a more detailed error message.

小开

For anyone facing the same issue, the problem is usually something in django itself. Activate your venv and run ./manage.py runserver

This will usually give you a more detailed error message.


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