Mobile Agents for Distributed Transactions of a Distributed Heterogeneous Database System

  • Authors:
  • D. Y. Ye;M. C. Lee;T. I. Wang

  • Affiliations:
  • -;-;-

  • Venue:
  • DEXA '02 Proceedings of the 13th International Conference on Database and Expert Systems Applications
  • Year:
  • 2002

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Abstract

A Distributed Heterogeneous Database System (DHDBS) is constituted of different kinds of autonomous databases connected to the network. A distributed transaction in such a system involves many sub-transactions and data movements among database sites. For the time being, most of the commercial database products implement their distributed transactions using the traditional client/server model that is suffering from enormous data movements. This paper proposes a new distributed transaction model which uses mobile agent technology to reduce data traffics in distributed transactions. The idea is backed by the well-known characteristics, such as mobility, autonomy, and concurrency, of mobile agents in supporting distributed computations. The aim is to boost the performance of distributed transactions of a heterogeneous database system in a loosely coupled environment (such as the Internet). An procedure is designed for distributed query decomposition. Some principles are observed for the path planning of a mobile agent roaming the network to carry out various sub-transactions.