Adjourn State Concurrency Control Avoiding Time-Out Problems in Atomic Commit Protocols

  • Authors:

  • Sebastian Obermeier;Stefan Bottcher;Martin Hett;Panos K. Chrysanthis;George Samaras

  • Affiliations:

  • University of Paderborn, Faculty 5 - EIM, 33102 Paderborn, Germany. so@upb.de;University of Paderborn, Faculty 5 - EIM, 33102 Paderborn, Germany. stb@upb.de;University of Paderborn, Faculty 5 - EIM, 33102 Paderborn, Germany. mh1108@upb.de;University of Pittsburgh, Department of Computer Science, Pittsburgh, PA 15260, USA. panos@cs.pitt.edu;University of Cyprus, Department of Computer Science, CY-1678 Nicosia, Cyprus. cssamara@cs.ucy.ac.cy

  • Venue:
  • ICDE '08 Proceedings of the 2008 IEEE 24th International Conference on Data Engineering
  • Year:
  • 2008

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Abstract

The use of atomic commit protocols in mobile adhoc networks involves difficulties in setting up reasonable time-outs for aborting a pending distributed transaction. This paper presents the non-blocking Adjourn State, a concurrency control modification which makes time-outs in an atomic commit protocol for aborting a transaction unnecessary. Further, it enhances concurrency among transactions performing conflicting accesses to resources used by completed distributed transactions waiting for the commit protocol to be initiated.