Event identifiers

Event fields uniquely identify each event. Event Management uses this information to determine whether to create a new alert or update an existing one.

By default, each event is uniquely identified by the Message Key. If the Message Key is not populated, a concatenation of the Source, Type, Node, Resource, and Metric Name fields are used and these fields populate the Message Key. If identifiers are not supplied in the event, you can add them with event rules.