To disable protocol reporting for all HTTP, MySQL, PostgreSQL and MongoDB metrics, append the following option to the agent configuration file /opt/draios/etc/dragent.yaml:
Then restart the agent with:
sudo service dragent restart
Note that if you install the agent using the automatic installation script, the agent will be automatically started right afterwards, so there will be a short period of time (between the end of the installation and when the above modification is made) where application metrics will be sent. To avoid this, create the /opt/draios/etc/dragent.yaml file and add the parameter before installing the agent.