Apache-2.2
嘗試在 Ubuntu Lucid Lynx 上使用 start Apache2 mod_wsgi 執行 Django，但沒有成功
我有一個小型vps，至少安裝了ubuntu lucid-lynx，記憶體約為 256mb，它是新安裝的，沒有什麼特別的執行。我正在嘗試將django部署到它，當我使用 manage.py 成功執行伺服器時，我無法讓wsgi工作的apache ：
# service apache2 start && service apache2 status * Starting web server apache2 [ OK ] Apache is NOT running.錯誤日誌
/var/log/apache2/error.log：[Thu Apr 14 21:17:29 2011] [warn] pid file /var/run/apache2.pid overwritten -- Unclean shutdown of previous Apache run? [Thu Apr 14 21:17:29 2011] [notice] Apache/2.2.14 (Ubuntu) mod_wsgi/2.8 Python/2.6.5 configured -- resuming normal operations [Thu Apr 14 21:17:29 2011] [alert] (11)Resource temporarily unavailable: apr_thread_create: unable to create worker thread [Thu Apr 14 21:17:29 2011] [error] Exception KeyError: KeyError(-1216795792,) in <module 'threading' from '/usr/lib/python2.6/threading.pyc'> ignored [Thu Apr 14 21:17:29 2011] [alert] (11)Resource temporarily unavailable: apr_thread_create: unable to create worker thread [Thu Apr 14 21:17:29 2011] [error] Exception KeyError: KeyError(-1216795792,) in <module 'threading' from '/usr/lib/python2.6/threading.pyc'> ignored [Thu Apr 14 21:17:31 2011] [alert] No active workers found... Apache is exiting!我的apache配置文件
/etc/apache2/httpd.conf：WSGIScriptAlias / /usr/local/django/deals/apache/django.wsgi <Directory /usr/local/django/deals/apache> Order deny,allow Allow from all </Directory>
/usr/local/django/deals/apache/django.wsgi文件：import os import sys path = '/usr/local/django/deals' if path not in sys.path: sys.path.append(path) os.environ['DJANGO_SETTINGS_MODULE'] = 'deals.settings' import django.core.handlers.wsgi application = django.core.handlers.wsgi.WSGIHandler()似乎已安裝：
# dpkg -l \*apache\* |grep -E '^ii' ii apache2 2.2.14-5ubuntu8.4 Apache HTTP Server metapackage ii apache2-mpm-worker 2.2.14-5ubuntu8.4 Apache HTTP Server - high speed threaded mod ii apache2-utils 2.2.14-5ubuntu8.4 utility programs for webservers ii apache2.2-bin 2.2.14-5ubuntu8.4 Apache HTTP Server common binary files ii apache2.2-common 2.2.14-5ubuntu8.4 Apache HTTP Server common files ii libapache2-mod-wsgi 2.8-2ubuntu1 Python WSGI adapter module for Apache
我終於想出瞭如何解決這個問題。首先，我在將ubuntu從10.04升級到10.10時遇到了麻煩，因為伺服器僅提供 128mb（256mb 可突發）並且在升級過程中用完了。也許這個問題的解決方案是簡單地升級ubuntu。但是，我確實通過按照此處所述從源安裝它來升級mod-wsgi，但這似乎沒有任何影響。
當我安裝apache2-mpm-prefork時，突破就來了，
apt-get install apache2-mpm-prefork所以它會使用它而不是apache-mpm-worker，就像dimmer建議的那樣。我不確定問題是否是apache-mpm-worker導致我的其他錯誤沒有被記錄，也許下一個遇到問題的人可以嘗試跳過這一步。當我切換到apache-mpm-worker時，apache錯誤日誌給出了以下錯誤。mod_wsgi (pid=1436): Exception occurred processing WSGI script '/usr/local/django/deals/apache/django.wsgi'. Traceback (most recent call last): File "/usr/local/lib/python2.6/dist-packages/Django-1.3-py2.6.egg/django/core/handlers/wsgi.py", line 250, in __call__ self.load_middleware() File "/usr/local/lib/python2.6/dist-packages/Django-1.3-py2.6.egg/django/core/handlers/base.py", line 39, in load_middleware for middleware_path in settings.MIDDLEWARE_CLASSES: File "/usr/local/lib/python2.6/dist-packages/Django-1.3-py2.6.egg/django/utils/functional.py", line 276, in __getattr__ self._setup() File "/usr/local/lib/python2.6/dist-packages/Django-1.3-py2.6.egg/django/conf/__init__.py", line 42, in _setup self._wrapped = Settings(settings_module) File "/usr/local/lib/python2.6/dist-packages/Django-1.3-py2.6.egg/django/conf/__init__.py", line 89, in __init__ raise ImportError("Could not import settings '%s' (Is it on sys.path?): %s" % (self.SETTINGS_MODULE, e)) ImportError: Could not import settings 'deals.settings' (Is it on sys.path?): No module named deals.setting這是因為我們無法導入設置模組。wsgi 與 Django 文件的集成解釋說我需要添加包含路徑，一旦我更新
/usr/local/django/deals/apache/django.wsgi了一切執行順利。import os, sys sys.path.append('/usr/local/django/deals') sys.path.append('/usr/local/django') os.environ['DJANGO_SETTINGS_MODULE'] = 'deals.settings' import django.core.handlers.wsgi application = django.core.handlers.wsgi.WSGIHandler()