Title :
On Deadlock Detection in Distributed Systems
Author :
Gligor, Virgil D. ; Shattuck, Susan H.
Author_Institution :
Department of Computer Science, University of Maryland
Abstract :
A hierarchically organized and a distributed protocol for deadlock detection in distributed databases are presented in [1]. In this paper we show that the distributed protocol is incorrect, and present possible remedies. However, the distributed protocol remains impractical because "condensations" of "transaction-wait-for" graphs make graph updates difficult to perform. Delayed graph updates cause the occurrence of false deadlocks in this as well as in some other deadlock detection protocols for distributed systems. The performance degradation that results from false deadlocks depends on the characteristics of each protocol.
Keywords :
Deadlock detection; delayed graph updates; distributed systems; false deadlocks; on-line protocols; ostensibly blocked transactions; out-of-order graph updates; Concurrent computing; Degradation; Delay; Distributed computing; Distributed databases; Multiprocessing systems; Out of order; Protocols; System recovery; Transaction databases; Deadlock detection; delayed graph updates; distributed systems; false deadlocks; on-line protocols; ostensibly blocked transactions; out-of-order graph updates;
Journal_Title :
Software Engineering, IEEE Transactions on
DOI :
10.1109/TSE.1980.230491
