Enabling Debugging mode of logging - Hue

Up to CDH-5.6 follow below steps in Cloudera Manager:

1) Hue --> Configuration.
2) search for " Hue Service Environment Advanced Configuration Snippet (Safety Valve)​ " and add below properties.
###

DEBUG=true
DESKTOP_DEBUG=true

 ###

3) Save and Restart Hue service.
4) you should be able to collect logs physically navigating into Hue service installed linux machine under below path.
" /var/run/cloudera-scm-agent/process/<id>-hue-HUE_SERVER/logs "
( where <id> is the most recently created, the debug logs do not show up in the default Hue log location, only in the process directory mentioned above.)

From CDH-5.7 on-wards :

Below are two ways to enable DEBUG messages for all the logs in /var/log/hue :

1 ) Cloudera Manager:
    - Go to Hue --> Configuration --> check Enable Django Debug Mode --> and Save Changes --> Restart Hue.

2) Hue Web UI:
    - Go to the Home page --> select Server Logs --> check Force Debug Level. Debug is enabled on-the-fly.