Alarm Service Daemon
Alarmd, the Alarm Service Daemon, processes events representing problems in the network. It either instantiates a new alarm for tracking a problem’s state or reduces a recurring Event of an existing problem into the same Alarm. (Also known as alarm de-duplication.)
Drools in Alarmd provide a more robust infrastructure for the effective management of workflow and problem states in the network.
Find these business rules in the ${OPENNMS_HOME}/etc/alarmd/drools-rules.d/
folder.