Where is the Action Log file of OpenStack Web UI on Ubuntu

Question

I have difficulty in finding the action log file of OpenStack Web UI on Ubuntu. Could someone help me? enter image description here

Thanks a lot!

Answer 1

http://docs.openstack.org/openstack-ops/content/logging_monitoring.html (2nd hit when googling "action log file of openstack web UI on Ubuntu" right now, first hit is this question) says:

Where Are the Logs?

Most services use the convention of writing their log files to subdirectories of the /var/log directory ...

Answer 2

it will appears in your web server log. In my case, horizon log is in either /var/log/apache2/horizon_error.log or /var/log/apache2/error.log