Deadlock Detection in Multidatabase Systems: a Performance Analysis - Inria - Institut national de recherche en sciences et technologies du numérique Access content directly
Reports (Research Report) Year : 1995

Deadlock Detection in Multidatabase Systems: a Performance Analysis


Deadlock detection is an interesting problem in MultiDataBase Systems (MDBS), since if all local transaction managements are blocking and force direct conflicts between global transactions, the problem of ensuring the global serializability in the MDBS is reduced to detecting and resolving global deadlocks.Unfortunately the autonomy of the local systems precludes the visibility of the state of local transactions and the contention on items, and therefore the classical approaches proposed for homogeneous distributed database systems, and based on necessary and sufficient conditions, cannot be extended to the MDBS case. A few specific methods have been proposed in the literature that exploit weaker necessary conditions to detect potential global deadlocks, that not necessarily correspond to real ones. In this paper we present a comparative performance study of several global deadlock detection methods. The results of the analysis have suggested a new Hybrid Deadlock Detection method, that we present in the paper and that is very well suited for a distributed implementation and has a performance that , according to our experiments, compares favorably with all the other methods in a variety of workload conditions.
Fichier principal
Vignette du fichier
RR-2668.pdf (353.87 Ko) Télécharger le fichier

Dates and versions

inria-00074022 , version 1 (24-05-2006)


  • HAL Id : inria-00074022 , version 1


Roberto Baldoni, Silvio Salza. Deadlock Detection in Multidatabase Systems: a Performance Analysis. [Research Report] RR-2668, INRIA. 1995. ⟨inria-00074022⟩
114 View
212 Download


Gmail Facebook X LinkedIn More