Nested transaction and concurrency control services on CORBA

Abstract

This paper presents the exploration and integration of the object transaction service and concurrency control service based on CORBA. We provide not only the flat transaction model but also the nested transaction model. Nested transaction provides isolation of failures and enhances concurrency of long-lived transaction. Issues on supporting nested transactions in both the object transaction service and the concurrency control service are discussed. We also reveal the necessary overhead introduced by these two services in our implementation.