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Distributed Concurrency Control with Local Wait-Depth Control Policy

Jiahong WANG, Jie LI, Hisao KAMEDA

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Summary :

Parallel Transaction Processing (TP) systems have great potential to serve the ever-increasing demands for high transaction processing rate. This potential, however, may not be reached due to the data contention and the widely-used two-phase locking (2PL) Concurrency Control (CC) method. In this paper, a distributed locking-based CC policy called LWDC (Local Wait-Depth Control) was proposed for dealing with this problem for the shared-nothing parallel TP system. On the basis of the LWDC policy, an algorithm called LWDCk was designed. Using simulation LWDCk was compared with the 2PL and the base-line Distributed Wait-Depth Limited (DWDL) CC methods. Simulation studies show that the new algorithm offers better system performance than those compared.

Publication
IEICE TRANSACTIONS on Information Vol.E81-D No.6 pp.513-520
Publication Date
1998/06/25
Publicized
Online ISSN
DOI
Type of Manuscript
Category
Databases

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