1. A method of selected alert delivery in a distributed processing system, the method comprising: receiving a plurality of events from one or more event producing components of the distributed processing system; creating, by an incident analyzer, in dependence upon the events a truth space representing events that make one or more conditional event processing rules true, the truth space including a set of truth points, each truth point including a set of events and a set of event locations; creating, by the incident analyzer, in dependence upon the truth space one or more alerts including assigning one of the locations of the truth space to one or more of the alerts; and sending, by the incident analyzer, the alerts to at least one component of the distributed processing system.