AWS RDS: Connections
This check monitors the number of database connections in use.
To make this check work you have to configure the related
Amazon Web Services (AWS).
No default levels are set. Upper levels are configurable via the
rule "AWS/RDS Connections".
Name of the instance and region name (to avoid duplicate services
in case of multi-region monitoring).
One service is create for each database if all required metrics
(DatabaseConnections) are given.