Hello,

Sorry for the late reply, I was away and not able to reply earlier.

I simply switched the wsgi file in the apache configuration of the 
virtualhost, so I changed wsgi.py to helloworld.py. That helloworld script 
worked fine, because when I went to the site's url I saw the message of the 
helloworld script on the screen.

On Monday, November 30, 2015 at 1:32:22 AM UTC+2, Graham Dumpleton wrote:
>
> That log output doesn’t even show mod_wsgi attempting to load the WSGI 
> script file. So if that corresponds to the time of the request, then the 
> error is happening before mod_wsgi gets a chance to do anything.
>
> Now you said you tried a WSGI hello world. Was that with a separate 
> VirtualHost configuration, or did you simply swap the contents of the 
> Django WSGI script file with a hello world?
>
> If the issue is with the Apache configuration, then swapping the Django 
> WSGI script file with a WSGI hello world should fail as well.
>
> Graham
>
> On 28 Nov 2015, at 10:23 PM, Arjan van Eersel <[email protected] 
> <javascript:>> wrote:
>
> Now I do get some response:
> [Sat Nov 28 13:19:21 2015] [info] mod_wsgi (pid=21273): Shutdown requested 
> 'aldeimbg.org'.
> [Sat Nov 28 13:19:21 2015] [info] mod_wsgi (pid=21273): Stopping process '
> aldeimbg.org'.
> [Sat Nov 28 13:19:21 2015] [info] mod_wsgi (pid=21273): Destroying 
> interpreters.
> [Sat Nov 28 13:19:21 2015] [info] mod_wsgi (pid=21273): Cleanup 
> interpreter ''.
> [Sat Nov 28 13:19:21 2015] [info] mod_wsgi (pid=21273): Terminating Python.
> [Sat Nov 28 13:19:21 2015] [info] mod_wsgi (pid=21273): Python has 
> shutdown.
> [Sat Nov 28 11:19:24 2015] [info] mod_wsgi (pid=700): Attach interpreter 
> ''.
> [Sat Nov 28 11:19:24 2015] [info] mod_wsgi (pid=700): Adding 
> '/home/aldeimbg/env/lib/python2.7/site-packages' to path.
> [Sat Nov 28 11:21:23 2015] [debug] mod_deflate.c(700): [client 
> 195.230.7.52] Zlib: Compressed 538 to 325 : URL /
> [Sat Nov 28 11:21:23 2015] [debug] mod_deflate.c(700): [client 
> 195.230.7.52] Zlib: Compressed 538 to 325 : URL /favicon.ico, referer: 
> http://www.aldeimbg.org/
>
> On Sat, Nov 28, 2015 at 6:17 AM, Graham Dumpleton <[email protected] 
> <javascript:>> wrote:
>
>> Ensure LogLevel in Apache configuration, at global as well as virtual 
>> host scope, is ‘info’ and not ‘warn’.
>>
>> Then capture any extra messages from mod_wsgi around time of request. If 
>> mod_wsgi isn’t logging anything then it isn’t even getting to mod_wsgi.
>>
>> Graham
>>
>> On 27 Nov 2015, at 4:10 PM, Arjan van Eersel <[email protected] 
>> <javascript:>> wrote:
>>
>> Nothing seems to happen, no output appears in the apache logs, but I 
>> might be applying the middleware in a wrong way. 
>> Here is my wsgi.py file:
>>
>> """
>> WSGI config for BalkanCMS project.
>>
>> It exposes the WSGI callable as a module-level variable named 
>> ``application``.
>>
>> For more information on this file, see
>> https://docs.djangoproject.com/en/1.7/howto/deployment/wsgi/
>> """
>>
>> import os
>> import sys
>>
>> sys.path.insert(0, 
>> os.path.abspath(os.path.join(os.path.dirname(__file__), "../../")))
>> sys.path.insert(0, 
>> os.path.abspath(os.path.join(os.path.dirname(__file__), "../")))
>> os.environ.setdefault("DJANGO_SETTINGS_MODULE", "BalkanCMS.settings")
>>
>> from django.core.wsgi import get_wsgi_application
>> application = get_wsgi_application()
>>
>> # Logging WSGI middleware.
>>
>> import pprint
>>
>> class LoggingMiddleware:
>>      def __init__(self, application):
>>         self.__application = application
>>
>>     def __call__(self, environ, start_response):
>>         errors = environ['wsgi.errors']
>>         pprint.pprint(('REQUEST', environ), stream=errors)
>>
>>         def _start_response(status, headers, *args):
>>             pprint.pprint(('RESPONSE', status, headers), stream=errors)
>>             return start_response(status, headers, *args)
>>
>>         return self.__application(environ, _start_response)
>>
>> application = LoggingMiddleware(application)
>>
>> On Thursday, November 26, 2015 at 1:53:37 PM UTC+2, Graham Dumpleton 
>> wrote:
>>>
>>> Lets now confirm that the 500 is coming from Django or whether is from 
>>> Apache.
>>>
>>> Use a WSGI middleware wrapper described in:
>>>
>>>
>>> https://code.google.com/p/modwsgi/wiki/DebuggingTechniques#Tracking_Request_and_Response
>>>
>>> to capture the request and response.
>>>
>>> Is the application actually returning a 500, or perhaps instead 
>>> returning a different error code.
>>>
>>> There are cases where for a non 200 error code other than 500 that 
>>> Apache can try and map it to an ErrorDocument but if that is mapping back 
>>> into the application and also has an error, Apache will fall back to 
>>> generating a 500 response.
>>>
>>> So lets just make sure we know what is going in and out of the 
>>> application and that it looks like what is expected.
>>>
>>> Also check what gets logged in the Apache access log at the same time.
>>>
>>> Am sleeping now, so will see what you find in the morning.
>>>
>>> Graham
>>>
>>> On 26 Nov 2015, at 10:40 PM, Arjan van Eersel <[email protected]> 
>>> wrote:
>>>
>>> Debug mode is enabled, still get only the error 500.
>>>
>>> Is there a way to get or log those exception details? These details 
>>> should put me on the right track to solve the issue. 
>>>
>>> Arjan
>>>
>>> On Thursday, November 26, 2015 at 1:30:09 PM UTC+2, Graham Dumpleton 
>>> wrote:
>>>>
>>>> As first step, enable DEBUG mode in Django settings module to see if 
>>>> that fixes the issue or at least causes a description of the error in the 
>>>> browser.
>>>>
>>>> It is quite common to get a 500 error response delivered back from 
>>>> Django with no record of the exception being logged. This is because 
>>>> Django 
>>>> doesn’t log exception details by default.
>>>>
>>>> Graham
>>>>
>>>> On 26 Nov 2015, at 9:34 PM, Arjan van Eersel <[email protected]> 
>>>> wrote:
>>>>
>>>> I'm trying to deploy a Django site through apache 2 as a wsgi daemon. 
>>>> Yet I keep getting an error 500 message, but no message in the apache logs 
>>>> at all. How can I get more information on what causes this error?
>>>>
>>>> I also made a quick helloworld wsgi app to test, here everything goes 
>>>> fine, so the problem seems to be related to the django app. The server 
>>>> uses 
>>>> virtualmin for management of the virtual host. And I've searched (and 
>>>> found) many related issues on the internet, still whatever I try I can't 
>>>> fix this problem. The irony is that I can run other instances of the same 
>>>> app without any problems on the same server. There are 3 other sites 
>>>> running on exactly the same app on the same server.
>>>>
>>>> *Virtual host settings:*
>>>> SuexecUserGroup "#1237" "#1136"
>>>> ServerName aldeimbg.org
>>>> ServerAlias www.aldeimbg.org
>>>> ServerAlias webmail.aldeimbg.org
>>>> ServerAlias admin.aldeimbg.org
>>>> ServerAlias autoconfig.aldeimbg.org
>>>>
>>>> #LogLevel debug
>>>>
>>>> Alias /static  /home/aldeimbg/python/BalkanCMS/static
>>>> <Directory /home/aldeimbg/python/BalkanCMS/static>
>>>>    Order deny,allow
>>>>    Allow from all
>>>> </Directory>
>>>>
>>>> Alias /media  /home/aldeimbg/python/UserContent/media
>>>> <Directory /home/aldeimbg/python/UserContent/media>
>>>>    Order deny,allow
>>>>    Allow from all
>>>> </Directory>
>>>>
>>>> WSGIDaemonProcess aldeimbg.org 
>>>> python-path=/home/aldeimbg/env/lib/python2.7/site-packages
>>>> WSGIProcessGroup aldeimbg.org
>>>> WSGIApplicationGroup %{GLOBAL}
>>>> WSGIScriptAlias / /home/aldeimbg/python/BalkanCMS/wsgi.py
>>>> WSGIPassAuthorization On
>>>>
>>>> <Directory /home/aldeimbg/python/BalkanCMS>
>>>>    #Require all granted
>>>>    Order allow,deny
>>>>    Allow from all 
>>>> </Directory>
>>>>
>>>> ErrorLog /var/log/virtualmin/aldeimbg.org_error_log
>>>> CustomLog /var/log/virtualmin/aldeimbg.org_access_log combined
>>>> ScriptAlias /cgi-bin/ /home/aldeimbg/cgi-bin/
>>>> ScriptAlias /awstats/ /home/aldeimbg/cgi-bin/
>>>> ScriptAlias /AutoDiscover/AutoDiscover.xml 
>>>> /home/aldeimbg/cgi-bin/autoconfig.cgi
>>>> ScriptAlias /Autodiscover/Autodiscover.xml 
>>>> /home/aldeimbg/cgi-bin/autoconfig.cgi
>>>> ScriptAlias /autodiscover/autodiscover.xml 
>>>> /home/aldeimbg/cgi-bin/autoconfig.cgi
>>>>
>>>> <Directory /home/aldeimbg/cgi-bin>
>>>> allow from all
>>>> AllowOverride All 
>>>> Options=ExecCGI,Includes,IncludesNOEXEC,Indexes,MultiViews,SymLinksIfOwnerMatch
>>>> </Directory>
>>>> RewriteEngine on
>>>> RewriteCond %{HTTP_HOST} =webmail.aldeimbg.org
>>>> RewriteRule ^(.*) https://aldeimbg.org:20000/ [R]
>>>> RewriteCond %{HTTP_HOST} =admin.aldeimbg.org
>>>> RewriteRule ^(.*) https://aldeimbg.org:10000/ [R]
>>>> RemoveHandler .php
>>>> RemoveHandler .php5
>>>> php_admin_value engine Off
>>>> IPCCommTimeout 31
>>>> FcgidMaxRequestLen 1073741824
>>>> <Files awstats.pl>
>>>> AuthName "aldeimbg.org statistics"
>>>> AuthType Basic
>>>> AuthUserFile /home/aldeimbg/.awstats-htpasswd
>>>> require valid-user
>>>> </Files>
>>>> Alias /dav /home/aldeimbg/public_html
>>>> Alias /pipermail /var/lib/mailman/archives/public
>>>> <Location /dav>
>>>> DAV on
>>>> AuthType Basic
>>>> AuthName "aldeimbg.org"
>>>> AuthUserFile /home/aldeimbg/etc/dav.digest.passwd
>>>> Require valid-user
>>>> ForceType text/plain
>>>> Satisfy All
>>>> RemoveHandler .php
>>>> RemoveHandler .php5
>>>> RewriteEngine off
>>>> </Location>
>>>> RedirectMatch /cgi-bin/mailman/([^/\.]*)(.cgi)?(.*) 
>>>> https://aldeimbg.org:10000/virtualmin-mailman/unauthenticated/$1.cgi$3
>>>> RedirectMatch /mailman/([^/\.]*)(.cgi)?(.*) 
>>>> https://aldeimbg.org:10000/virtualmin-mailman/unauthenticated/$1.cgi$3
>>>> Redirect /mail/config-v1.1.xml /cgi-bin/autoconfig.cgi
>>>>
>>>> *wsgi.py:*
>>>>
>>>> """
>>>> WSGI config for BalkanCMS project.
>>>>
>>>> It exposes the WSGI callable as a module-level variable named 
>>>> ``application``.
>>>>
>>>> For more information on this file, see
>>>> https://docs.djangoproject.com/en/1.7/howto/deployment/wsgi/
>>>> """
>>>>
>>>> import os
>>>> import sys
>>>>
>>>> sys.path.insert(0, 
>>>> os.path.abspath(os.path.join(os.path.dirname(__file__), "../../")))
>>>> sys.path.insert(0, 
>>>> os.path.abspath(os.path.join(os.path.dirname(__file__), "../")))
>>>> os.environ.setdefault("DJANGO_SETTINGS_MODULE", "BalkanCMS.settings")
>>>>
>>>> from django.core.wsgi import get_wsgi_application
>>>> application = get_wsgi_application()
>>>>
>>>> *settings.py*
>>>>
>>>> DEBUG = True (tried with False too, but get the same error)
>>>>
>>>> TEMPLATE_DEBUG = True
>>>>
>>>> ALLOWED_HOSTS = ['*',]
>>>>
>>>> I can access the app through manage.py runserver without problems
>>>>
>>>> *Apache version info:*
>>>> Server version: Apache/2.2.22 (Ubuntu)
>>>> Server built:   Jul 24 2015 17:25:42
>>>> Server's Module Magic Number: 20051115:30
>>>> Server loaded:  APR 1.4.6, APR-Util 1.3.12
>>>> Compiled using: APR 1.4.6, APR-Util 1.3.12
>>>> Architecture:   64-bit
>>>> Server MPM:     Prefork
>>>>   threaded:     no
>>>>     forked:     yes (variable process count)
>>>> Server compiled with....
>>>>  -D APACHE_MPM_DIR="server/mpm/prefork"
>>>>  -D APR_HAS_SENDFILE
>>>>  -D APR_HAS_MMAP
>>>>  -D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
>>>>  -D APR_USE_SYSVSEM_SERIALIZE
>>>>  -D APR_USE_PTHREAD_SERIALIZE
>>>>  -D SINGLE_LISTEN_UNSERIALIZED_ACCEPT
>>>>  -D APR_HAS_OTHER_CHILD
>>>>  -D AP_HAVE_RELIABLE_PIPED_LOGS
>>>>  -D DYNAMIC_MODULE_LIMIT=128
>>>>  -D HTTPD_ROOT="/etc/apache2"
>>>>  -D SUEXEC_BIN="/usr/lib/apache2/suexec"
>>>>  -D DEFAULT_PIDLOG="/var/run/apache2.pid"
>>>>  -D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
>>>>  -D DEFAULT_LOCKFILE="/var/run/apache2/accept.lock"
>>>>  -D DEFAULT_ERRORLOG="logs/error_log"
>>>>  -D AP_TYPES_CONFIG_FILE="mime.types"
>>>>  -D SERVER_CONFIG_FILE="apache2.conf"
>>>>
>>>> *mod_wsgi version*
>>>> ii  libapache2-mod-wsgi                   3.3-4ubuntu0.2               
>>>>          Python WSGI adapter module for Apache
>>>>
>>>> *Python version:* 2.7.3
>>>>
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>>>>
>>>>
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