Patent attributes
An event processing system may identify duplicate events and prevent one or more of the duplicate events from being processed. The event processing system may determine the duplicate events, which are not permitted to be processed more than once, and allow these duplicate events to be processed exactly once. The event processing system may allow events, which are permitted to be processed more than once, to be processed without determining whether the events are duplicate events. If a main data center of the event processing system fails, a backup data center may take over instantly event processing from the main data center and may prevent events that have been processed by the main data center from being processed. Multiple data centers may work together and process events in an active-active mode by offering the exactly once processing as well as removing any duplicate events from upstream systems.
