Now have an OLTP system, complex rules call interface, the interface is incoming data, need 1-2 seconds returned as a result, there are 1000 records 2-3 fields, spark related components could be used as a service program, parallel processing these records, to speed up the response time, or in the local multi-threaded parallel processing, spark design main purpose is to handle the asynchronous model, whether processing on the mechanism for synchronous model with time delay,