In sensu, how to configure log level?
Borrowed from sensu FAQ: http://sensuapp.org/docs/0.12/faq#how-do-i-increase-log-verbosity
You can adjust the process log level by setting LOG_LEVEL in /etc/default/sensu to either debug, info, warn or error. You will need to restart the Sensu process(s) after making the adjustment.
This will work for both server and client. Don't forget to restart the sensu services you want to debug
# echo "LOG_LEVEL=debug" >> /etc/default/sensu
# service sensu-server restart
# service sensu-api restart
# service sensu-client restart