A Transaction Model and Multiversion Concurrency Control For Mobile
Speakers: Sanjay Kumar Madria
Topic(s): Databases & Information,Mobile Computing,Web Topics
Transaction management on Mobile Database Systems (MDS) has to cope with a
number of constraints such as limited bandwidth, low processing power,
unreliable communication, and mobility etc. As a result of these constraints,
traditional concurrency control mechanisms are unable to manage transactional
activities to maintain availability. Innovative transaction execution
schemes and concurrency control mechanisms are therefore required to exploit
the full potential
of MDS. In this paper, we report our investigation on a
transaction processing approach and a deadlock-free
mechanism based on multiversion two-phase locking scheme
integrated with a timestamp approach. We study the behavior of the proposed
model with a simulation study in a MDS environment. We have compared our
schemes using a reference model to argue that such a performance
comparison helps to show the superiority of our model over others.
Experimental results demonstrate that our model provide significantly
higher throughput by improving degree of concurrency, by reducing
transaction wait time, and by minimizing restarts and aborts.
About this Lecture
Number of Slides: n/a
Duration: 60-180 minutes
Languages Available: English
Last Updated: 05-02-2008
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