Django Logging not working when deployed on Ubuntu/Apache Server - django

Question

My Django Logger works fine on my local machine but does not work when I deploy it to the server.
Local: OS X 10.9.5, Python 2.7.5, Django 1.6.2
Server: Ubuntu 12.04, Apache 2.2.22, mod_wsgi Version: 3.3-4ubuntu0.1, Python 2.7.3, Django 1.6
On my local setup I run python manage.py syncdb, this creates the survey.log file which I then follow with tail -f survey.log so I can see the error messages as they are created.
On my server I run python manage.py syncdb, this creates the survey.log file which I then follow with tail -f survey.log. However I can not see any of my debug messages and when I inspect the file with nano it is empty.
Why is no logging data being recorded into survey.log on my production environment? What am I missing?
views.py
import logging
logger = logging.getLogger(__name__)
logger.debug('This is your images list in 7: %s', images)
settings.py
LOGGING = {
'version': 1,
'disable_existing_loggers': False,
'filters': {
'require_debug_false': {
'()': 'django.utils.log.RequireDebugFalse'
}
},
'handlers': {
'mail_admins': {
'level': 'ERROR',
'filters': ['require_debug_false'],
'class': 'django.utils.log.AdminEmailHandler'
},
'applogfile': {
'level':'DEBUG',
'class':'logging.handlers.RotatingFileHandler',
#'filename': os.path.join(DJANGO_ROOT, 'survey.log'),
'filename': 'survey.log',
'maxBytes': 1024*1024*15, # 15MB
'backupCount': 10,
}
},
'loggers': {
'django.request': {
'handlers': ['mail_admins'],
'level': 'ERROR',
'propagate': True,
},
'survey': {
'handlers': ['applogfile',],
'level': 'DEBUG',
},
}
}
EDIT
I have now discovered that my Django error logs are getting written to my Apache error logs. Is this in any way normal?
Running
sudo tail /var/log/apache2/error.log
Provides me with the expected print out that I should be getting in my above Django error log file. e.g.
[15/Dec/2014 21:36:07] DEBUG [survey:190] This is your images list in 7: ['P3D3.jpg', 'P1D1.jpg', 'P5D5.jpg']

Answer 1

You aren't using the correct logger in your views.py. Try this:
import logging
logger = logging.getLogger('survey')
logger.debug('This is a debug message.')
The logger you get must match the loggers defined in LOGGING.

Answer 2

My guess is that the logfile actually gets created but in a directory that you don't except it to be. Try to put a full path in your configuration. Something like 'filename': '/tmp/survey.log',, restart apache and check if it's there. Of course first you must apply a solution that Derek posted.
The reason you see the log message in your apache logs is probably because mod_wsgi configures somehow a default (root) logger and your configuration doesn't disable it (you have 'disable_existing_loggers': False,).

Answer 3

if you don't pass the full path of the filename, it is created in the directory the running process is started ( or make a sys/chdir), it depends on the operating system which dir is used