Oracle Corporation
Determining system information based on object mutation events

Abstract:

A consumer transmits a set of system updates corresponding to an initial set of events retrieved from an event stream. The consumer determines that acknowledgement of the transmission of the initial set of events has not been received. The consumer executes another retrieval operation to retrieve events from the event stream which results in retrieving an updated set of events. The updated set of events includes the initial set of events and one or more additional events. The consumer trims the updated set of events to remove the one or more additional events and obtains the initial set of events. The consumer re-determines and re-transmits the system updates corresponding to the initial set of events that were obtained by trimming the updated set of events.