The Data Purging Handler deletes the data pertaining to all the qualified process instances or events extracted by the Data Extractor handler. Data belonging to all Process Instances/Events is not deleted in one single transaction. The data is divided in to batches of fixed size, and each batch deletion happens as a separate transaction.
All data of a qualified process instance that is in a completed or removed state is deleted from BPM Process Store. The purger deletes all data pertaining to a process instance including worksteps, workitems and the instance datafields. It also deletes the process alerts that are in deleted state.
