Research in Functionally Distributed Computer Systems Development. Volume XVII. Implementation of a Distributed Data Base System

摘要

In this paper we present an overview of data base management systems (DBMS), the motivation for distributed data base systems (DDBMS), a set of possible network topologies served by the distribution, the mechanisms necessary to integrate (and communicate between) the DDBMS system elements when distributed across a nonhomogeneous network of minicomputers, and some implementation details on a prototype system. The current prototype distributes the DBMS and application program function across an IBM 370/158 and a (minicomputer) NOVA 2/10. In the near future, a third machine, the Interdata 85 minicomputer, will be added to the network. The DBMS used is a network system as specified by CODASYL. The emphasis in this paper will be on the problems posed by the heterogeneous machines and the intertask (processor) communication system which is utilized in the distribution of data, programs, and control. (Author)