Debugging Edxapp

Relevant Log Files

Log File Location	What's in it?
/edx/var/log/supervisor/lms-stderr.log /edx/var/log/supervisor/cms-stderr.log	Startup error messages and debug output from the running LMS django process - If you're getting a startup error, look here
/edx/var/log/supervisor/supervisord.log	Debug output from the supervisor task manager - If you make changes to the supervisor task definitions, look here.
/edx/var/log/lms/edx.log /edx/var/log/cms/edx.log	Request logs and errors from the LMS - If you're getting a 500 error on a certain request, look here.
/edx/var/log/nginx/error.log	Errors from nginx proxy server that front-ends both the LMS and CMS. - Mostly access or configuration related errors. If you're getting a 4xx or 5xx error, look here
/edx/var/log/nginx/access.log	Access logs for all requests to the server. - If you want to see apache style logs for every request your server is getting, look here.

Configuration File Location	What's in it?	Format
/edx/app/edxapp/lms.env.json /edx/app/edxapp/cms.env.json	Most configuration parameters for the app. - Feature flags - backend server locations - theme related settings	JSON
/edx/app/edxapp/lms.auth.json /edx/app/edxapp/cms.auth.json	Authentication parameters for the app - API Keys - Database passwords - occasional settings that are paired with authentication	JSON
/edx/app/supervisor/conf.d/lms.conf /edx/app/supervisor/conf.d/cms.conf	Supervisor task manager configuration for apps - Environment variables are here - Startup commands for the apps.	supervisor config
/edx/app/supervisor/pre_supervisor_checks.py	Migration check commands	Python