A method, system, and computer program for processing records is disclosed. The records are associated with record sets. Record sets are associated with processor sets, which include one or more processors. Records are routed to associated processor sets for processing, based on the record set associated with the record. Records are processed on processors in the processor sets. Furthermore, various localized affinities can be established. Process affinity can link server processes with processor sets. Cache affinity can link database caches with processor sets. Data affinity can link incoming data to processor sets.