gunicorn.errors.HaltServer: <HaltServer 'Worker 无法启动。' 3>答案

【问题标题】：gunicorn.errors.HaltServer: <HaltServer 'Worker failed to boot.' 3>gunicorn.errors.HaltServer: <HaltServer 'Worker 无法启动。' 3>
【发布时间】：2014-08-29 15:58:54
【问题描述】：

我已经在我的 virtualenv 中安装了 gunicorn。

从此目录：

manage.py
/onbytes/wsgi.py

我运行以下命令：

gunicorn onbytes.wsgi:application

我收到以下错误：

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>

运行 gunicorn onbytes.wsgi:application --preload 会给我这个错误：

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

【问题讨论】：

在调试模式下运行可以提供一些更有用的信息gunicorn onbytes.wsgi:application --debug --log-level debug。

标签： python gunicorn

【解决方案1】：

在将--preload 添加到Procfile 之后，我知道我应该使用pip 安装psycopg2-binary：

pip install psycopg2-binary

【讨论】：

【解决方案2】：

添加--preload gunincorn 命令告诉我我必须这样做：

pip install ordereddict

那个包裹不见了。

【讨论】：

谢谢。就我而言，添加--preload 是获得有用的调试输出的秘诀，它指出了我的应用程序中的潜在错误。 --log-file 和 --log-level debug 没有多大帮助。
这个。这。这。所有其他“显示更好的日志”选项仅在不同的地方显示相同的错误。这个也向我展示了实际问题 - 在我的情况下，它缺少一个 init.py
如果可以的话，我会把这个版本作为正确答案——gunicorn --preload 实际上给了我一个回溯，以找出失败的原因

【解决方案3】：

可能是您的应用程序存在问题，而不是 gunicorn。

试试：

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

从 R19 版本开始，Gunicorn 默认不会在控制台中登录，并且不推荐使用 --debug 选项。

【讨论】：

这是每个 gunicorn 启动错误的第一个解决方案。

【解决方案4】：

我遇到了类似的问题，这是因为我在错误的目录中运行了命令。在标准的 django 安装中，尝试在 'manage.py' 的同一目录中运行 gunicorn

【讨论】：