A Modified Priority Based Probe Algorithm for Distributed Deadlock Detection and Resolution

  • Authors:
  • Alokdhar N. Choudhary;Walter H. Kohler;John A. Stankovic;Don Towsley

  • Affiliations:
  • Univ. of Illinois, Urbana-Champaign;Univ. of Massachusetts, Amherst;Univ. of Massachusetts, Amherst;Univ. of Massachusetts, Amherst

  • Venue:
  • IEEE Transactions on Software Engineering
  • Year:
  • 1989

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Abstract

A modified, priority-based probe algorithm for deadlock detection and resolution in distributed database system is presented. Various examples are used to show that the original priority-based algorithm, presented by M.K. Sinha and N. Natarajan (1985), either fails to detect deadlocks or reports deadlocks that do not exist in many situations. A modified algorithm that eliminates these problems is proposed. The algorithm has been tested through simulation and appears to be errorfree. The performance of the modified algorithm is briefly discussed.