Classification Architecture and Flow Architecture
The Data Classification content indexing is performed by the Central Data Classification services and their associated Collectors. Architecture has additional information on the possible deployment models and how to scale the Data Classification Collectors to achieve greater speed and performance.
The Central Classification service reads the BRs eligible for indexing and sends them to the Collectors. The Collectors index the files in the received BRs according to the defined data classification policy, and send the results back to the Central Service to be saved in the database.
The Collectors no longer keep a persisted full text index on disk, since all the processing is done in-memory.