Mobile Transaction Management in Mobisnap

  • Nuno Preguiça
  • Carlos Baquero
  • Francisco Moura
  • J. Legatheaux Martins
  • Rui Oliveira
  • Henrique Domingos
  • J. Orlando Pereira
  • Sérgio Duarte
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1884)

Abstract

In this paper we describe a transaction management system designed to face the inherent characteristics of mobile environments. Mobile clients cache subsets of the database state and allow disconnected users to perform transactions independently. Transactions are specified as mobile transactional programs that are propagated and executed in the server, thus allowing the validation of transactions based on application-specific semantics. In the proposed model (as in others previously presented in literature) the final result of a transaction is only determined when the transaction is processed in the central server. Users may be notified of the results of their transactions using system support (even when they are no longer using the same application or even the same computer). Additionally, the system implements a reservation mechanism in order to guarantee the results of transactions performed in disconnected computers.

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References

  1. 1.
    Gray, C., Cheriton, D.: Leases: an efficient fault-tolerant mechanism for distributed file cache consistency. In Proceedings of the 12th ACM Symposium on Operating Systems Principles, 1989.Google Scholar
  2. 2.
    Gray, J., Helland, P., O’Neil, P., Shasha, D.: The dangers of replication and a solution. In Proceedings of the ACM SIGMOD’96, 1996.Google Scholar
  3. 3.
    Jing, J., Helal, A., Elmagarmid, A.: Client-server computing in mobile environments. ACM Computing Surveys, 1999.Google Scholar
  4. 4.
    Joseph, A., DeLespinasse, A., Tauber, J., Gifford, D., Kaashoek, M.: Rover: A Toolkit for Mobile Information Access. In Proceedings of the 15th ACM Symposium on Operating Systems Principles, 1995.Google Scholar
  5. 5.
    Krishnakumar, N., Jain, R.: Escrow techniques for mobile sales and inventory applications. Wireless Networks, 3, 1997.Google Scholar
  6. 6.
  7. 7.
    Oracle.: Oracle8i Lite replication Guide-release 4.0. 1999.Google Scholar
  8. 8.
    Oracle.: PL/SQL User’s guide and reference-release 8.0. June 1997.Google Scholar
  9. 9.
    Phatak, S., Badrinath, B.: Multiversion reconciliation for mobile databases. In Proceedings of ICDE’99, 1999.Google Scholar
  10. 10.
    Satyanarayanan, M.: Fundamental Challenges in Mobile Computing. In Proceedings of the 15th ACM Symposia on Principles of Distributed Computing, 1996.Google Scholar
  11. 11.
    Terry, D., Theimer, M., Petersen, K., Demers, A., Spreitzer, M., Hauser, C.: Managing Update Conflicts in Bayou, a Weakly Connected Replicated Storage System. In Proceedings of the 15th ACM Symposium on Operating Systems Principles, 1995.Google Scholar
  12. 12.
    Walborn, G., Chrysanthis, P.: Supporting semantics-based transaction processing in mobile database systems. In Proceedings of the 14th Symposium on Reliable Database Systems, 1995.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • Nuno Preguiça
    • 1
  • Carlos Baquero
    • 2
  • Francisco Moura
    • 2
  • J. Legatheaux Martins
    • 1
  • Rui Oliveira
    • 2
  • Henrique Domingos
    • 1
  • J. Orlando Pereira
    • 2
  • Sérgio Duarte
    • 1
  1. 1.Depertamento de Informática, FCTUniversidade Nova de LisboaMonte da CaparicaPortugal
  2. 2.Departamento de InformáticaUniversidade do MinhoBragaPortugal

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