python - Error Logging in Django and Gunicorn -


i want logging in django , gunicorn, when error. study tdd python, http://chimera.labs.oreilly.com/books/1234000000754/ch17.html#_setting_up_logging

this code. /etc/init/gunicorn-superlists-staging.mysite.com.conf

description "gunicorn server superlists-staging.mysite.com"  start on net-device-up stop on shutdown  respawn  setuid junsu chdir /home/junsu/sites/superlists-staging.mysite.com/source  exec ../virtualenv/bin/gunicorn \     --bind unix:/tmp/superlists-staging.mysite.com.socket \     --access-logfile ../access.log \     --error-logfile ../error.log \     superlists.wsgi:application

accounts/authentication.py

import requests import logging django.contrib.auth import get_user_model user = get_user_model()  persona_verify_url = 'https://verifier.login.persona.org/verify' domain = 'localhost'  class personaauthenticationbackend(object):      def authenticate(self, assertion):         logging.warning('authenticate function')         response = requests.post(             persona_verify_url,             data={'assertion': assertion, 'audience': settings.domain}         )         logging.warning('got response form persona')         logging.warning(response.content.decode())         if response.ok , response.json()['status'] == 'okay':             email = response.json()['email']             try:                 return user.objects.get(email=email)             except user.doesnotexist:                 return user.objects.create(email=email)      def get_user(self, email):         try:             return user.objects.get(email=email)         except user.doesnotexist:             return none

superlists/settings.py

[....] logging = {     'version': 1,     'disable_existing_logger': false,     'handlers': {         'console': {             'level': 'debug',             'class': 'logging.streamhandler',         },     },     'loggers': {         'django': {             'handlers': ['console'],         },     },     'root': {'level': 'info'}, }

my "error.log" log this.

[2016-02-08 14:42:56 +0900] [3355] [info] listening at: unix:/tmp/superlists-staging.mysite.com.socket (3355) [2016-02-08 14:42:56 +0900] [3355] [info] using worker: sync [2016-02-08 14:42:56 +0900] [3359] [info] booting worker pid: 3359 [2016-02-08 14:58:22 +0900] [3355] [info] handling signal: term [2016-02-08 14:58:22 +0900] [3355] [info] shutting down: master [2016-02-08 14:58:22 +0900] [3470] [info] starting gunicorn 19.4.3 [2016-02-08 14:58:22 +0900] [3470] [info] listening at: unix:/tmp/superlists-staging.mysite.com.socket (3470) [2016-02-08 14:58:22 +0900] [3470] [info] using worker: sync [2016-02-08 14:58:22 +0900] [3474] [info] booting worker pid: 3474

i want see error loging, can do?

tl;dr there's nothing wrong code

it seems you've followed linked tutorial correctly, , find log files in /home/junsu/sites/superlists-staging.mysite.com/ dir.

regardless, there few points address in question, i'll try that.

loggers , handlers

the settings module reference above sets single logging handler console (streamhandler), , single django logger can use handler.

the root logger not define handlers, , "django" log stderr, , level info , above. ran quick test, , root logger has streamhandler defined default.

your authentication.py module calls logging.warning logs root logger (i.e logger = logging.getlogger(); logger.warning('stuff')). however, may want define more specific handler easier locate log of module. explained in section of referenced tutorial.

gunicorn redirects stderr default

it seems by default set capture stderr stream, redirect log file. however, suggestion use daemonizing app (seems you're using upstart) log stderr/out.

upstart logging

as explained in gunicorn docs, configuring upstart pretty simple.

if remove --error-logfile option in /etc/init/gunicorn-superlists-staging.mysite.com.conf config, gunicorn default logging it's output stderr can captured upstart in whatever manner prefer.

if using upstart 1.7 or greater, stdout/err capturing should enabled default. if, however, use earlier version of upstart, suggestion add a console log option in config , output (stdout/stderr) logged (i assume) /var/log/upstart/gunicorn-superlists-staging.mysite.com.log


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