The process is crashing, likely because of a fault C extension module. Try
adding:
WSGIApplicationGroup %{GLOBAL}
See:
http://modwsgi.readthedocs.io/en/develop/user-guides/application-issues.html#python-simplified-gil-state-api
<http://modwsgi.readthedocs.io/en/develop/user-guides/application-issues.html#python-simplified-gil-state-api>
Graham
> On 17 Aug 2016, at 8:36 PM, Anatoly Piskunov <[email protected]>
> wrote:
>
> Hello Graham Dumpelton, and rest of the fellow community!
> i need your competent help with this issue. I've read almost all of the
> threads, but unfortunately didn't get a solution.
>
> System details:
> 5.5.46-0ubuntu0.14.04.2 - (Ubuntu)
>
> user01@vkc-sandbox02:/var/log/apache2$ uname -a
> Linux vkc-sandbox02 3.13.0-71-generic #114-Ubuntu SMP Tue Dec 1 02:34:22 UTC
> 2015 x86_64 x86_64 x86_64 GNU/Linux
>
> Apache/2.4.7 (Ubuntu)
> Python 3.4.3 (virtual env)
> Python 3.4.3 (system)
> Python 2.7 (system)
> mod-wsgi (4.5.4)
> Django 1.10
>
> user01@vkc-sandbox02:/etc/apache2/mods-enabled$ cat wsgi.conf
> <IfModule mod_wsgi.c>
> #it's empty
> </IfModule>
>
> user01@vkc-sandbox02:/etc/apache2/mods-enabled$ cat wsgi.load
> LoadModule wsgi_module /usr/lib/apache2/modules/mod_wsgi-py34.cpython-34m.so
>
> user01@vkc-sandbox02:/etc/apache2/sites-enabled$ cat 000-default.conf
>
> <VirtualHost *:80>
> WSGIDaemonProcess fb_bot
> python-path=/home/user01/nano_fb_py_bot:/home/user01/.virtualenvs/dev_fbbot_ve/bin:/home/user01/.virtualenvs/dev_fbbot_ve/lib/python3.4/site-packages
> header-buffer-size=32768
> WSGIProcessGroup fb_bot
> WSGIScriptAlias / /home/user01/nano_fb_py_bot/nano_fb_py_bot/wsgi.py
> <Directory /home/user01/nano_fb_py_bot/nano_fb_py_bot>
> <Files wsgi.py>
> Require all granted
> </Files>
> </Directory>
> ServerAdmin webmaster@localhost
> DocumentRoot /var/www/html
> LogLevel info wsgi:debug
> ErrorLog ${APACHE_LOG_DIR}/django-error.log
> CustomLog ${APACHE_LOG_DIR}/access.log combined
> Header set Access-Control-Allow-Origin "*"
> </VirtualHost>
>
>
> wsgi.py
> import os, sys
>
> from django.core.wsgi import get_wsgi_application
> import django.core.handlers.wsgi
> import sys
> sys.stdout = sys.stderr
> os.environ.setdefault("DJANGO_SETTINGS_MODULE", "nano_fb_py_bot.settings")
> application = get_wsgi_application()
>
>
>
> and finally, views.py
> user01@vkc-sandbox02:~/nano_fb_py_bot/fb_nanosemantics$ cat views.py
> from django.shortcuts import render
> from django.views import generic
> from django.http.response import HttpResponse
> from django.views.decorators.csrf import csrf_exempt
> from django.utils.decorators import method_decorator
> import traceback
> import pymysql.cursors
> import json, requests, re
> import hashlib
> from multiprocessing import Pool
> PAGE_ACCESS_TOKEN = 'some_token'
> VERIFY_TOKEN = '123456789'
>
>
> # Create your views here.
> class FacebookBotView(generic.View):
> def get(self, request, *args, **kwargs):
> if self.request.GET['hub.verify_token'] == VERIFY_TOKEN:
> return HttpResponse(self.request.GET['hub.challenge'])
> else:
> return HttpResponse('Error, invalid token')
>
> @method_decorator(csrf_exempt)
> def dispatch(self, request, *args, **kwargs):
> return generic.View.dispatch(self, request, *args, **kwargs)
>
> When i run Django app from development web server,
> python manage.py runserver 127.0.0.1:8000
> everything works like a charm when i do curl
> 127.0.0.1:8000/Path_to_View/LInk?hub.verify_token=some_token&hub.challenge=some_challenge
> when i don't pass get params, i see error (and that's great!!!)
>
> But when i try access this url served by apache - i get internal server error
> 500.
> And no error traceback shown in my virtualhost apache logs (please see below).
>
> if i simplify views.py, as below
> class FacebookBotView(generic.View):
> def get(self, request, *args, **kwargs):
> return HttpResponse('Hello World!')
>
> @method_decorator(csrf_exempt)
> def dispatch(self, request, *args, **kwargs):
> return generic.View.dispatch(self, request, *args, **kwargs)
> Page accessible via apache, and i get web response.
> but if i make a syntax, or ident mistake, or call some function - the error
> comes back again, with no traceback.
>
> And i mention again - none of this appears with dev. web server.
>
>
> [Wed Aug 17 16:06:49.735396 2016] [wsgi:info] [pid 4122] mod_wsgi (pid=4122):
> Create interpreter 'vkc-sandbox02.kcell.kz|'.
> [Wed Aug 17 16:06:49.765976 2016] [wsgi:info] [pid 4122] mod_wsgi (pid=4122):
> Adding '/home/user01/nano_fb_py_bot' to path.
> [Wed Aug 17 16:06:49.766645 2016] [wsgi:info] [pid 4122] mod_wsgi (pid=4122):
> Adding '/home/user01/.virtualenvs/dev_fbbot_ve/bin' to path.
> [Wed Aug 17 16:06:49.767402 2016] [wsgi:info] [pid 4122] mod_wsgi (pid=4122):
> Adding '/home/user01/.virtualenvs/dev_fbbot_ve/lib/python3.4/site-packages'
> to path.
> [Wed Aug 17 16:06:49.789132 2016] [wsgi:info] [pid 4122] [remote
> 10.10.165.20:57995] mod_wsgi (pid=4122, process='fb_bot',
> application='vkc-sandbox02.kcell.kz|'): Loading WSGI script
> '/home/user01/nano_fb_py_bot/nano_fb_py_bot/wsgi.py'.
> [Wed Aug 17 16:06:50.946329 2016] [wsgi:error] [pid 4010] [client
> 10.10.165.20:57995] Truncated or oversized response headers received from
> daemon process 'fb_bot': /home/user01/nano_fb_py_bot/nano_fb_py_bot/wsgi.py,
> referer: http://192.168.216.172/fb_nanosemantics/bot
> [Wed Aug 17 16:06:51.654933 2016] [wsgi:info] [pid 4152] mod_wsgi (pid=4152):
> Attach interpreter ''.
> [Wed Aug 17 16:06:51.655496 2016] [wsgi:info] [pid 4152] mod_wsgi (pid=4152):
> Adding '/home/user01/nano_fb_py_bot' to path.
> [Wed Aug 17 16:06:51.656096 2016] [wsgi:info] [pid 4152] mod_wsgi (pid=4152):
> Adding '/home/user01/.virtualenvs/dev_fbbot_ve/bin' to path.
> [Wed Aug 17 16:06:51.656909 2016] [wsgi:info] [pid 4152] mod_wsgi (pid=4152):
> Adding '/home/user01/.virtualenvs/dev_fbbot_ve/lib/python3.4/site-packages'
> to path.
> [Wed Aug 17 16:06:51.693079 2016] [wsgi:info] [pid 4152] mod_wsgi (pid=4152):
> Imported 'mod_wsgi'.
> [Wed Aug 17 16:06:51.694273 2016] [wsgi:debug] [pid 4152]
> src/server/mod_wsgi.c(8706): mod_wsgi (pid=4152): Started thread 1 in daemon
> process 'fb_bot'.
> [Wed Aug 17 16:06:51.694314 2016] [wsgi:debug] [pid 4152]
> src/server/mod_wsgi.c(8706): mod_wsgi (pid=4152): Started thread 2 in daemon
> process 'fb_bot'.
> [Wed Aug 17 16:06:51.694263 2016] [wsgi:debug] [pid 4152]
> src/server/mod_wsgi.c(8706): mod_wsgi (pid=4152): Started thread 0 in daemon
> process 'fb_bot'.
>
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