webMethods Event Persistence is a unified model for storing events in the EDA environment regardless of the underlying storage technology. With Event Persistence, you can persist event instances within an event-driven system to an event store. This event store is not a transactional or analytic database, but a system of record that supports long-term, high-volume storage. The event store is used as a resource for Extract, Transform, Load (ETL) operations, which in turn can feed analytic applications.

You use webMethods Event Persistence through the Event Persistence service type for Event Routing. Event Persistence services can be configured to persist all instances of an event type to an event store within a storage system of your choice. For example, you can use Hadoop Distributed File System (HDFS) as the storage engine for persisted events data. For more information about using Event Persistence with HDFS, see Using Event Persistence with HDFS.

For more information about how to create and configure Event Persistence services, see Creating Event Persistence Services.