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A decentralized deadlock-free concurrency control method for multidatabase transactions

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3 Author(s)
R. K. Batra ; Dept. of Comput. Sci., Houston Univ., TX, USA ; M. Rusinkiewicz ; D. Georgakopoulos

A global concurrency control mechanism for multidatabase systems that preserves the autonomy of local databases and is free from global deadlocks is presented. The mechanism extends the notion of timestamps to a multidatabase environment to enforce the global serialization order through additional data operations on a data item stored in local systems. The main advantage of the mechanism is that it allows a fully distributed architecture, in which concurrency control decisions can be made on the basis of locally available information. Since no centralized information is maintained by the mechanism, it provides a higher degree of fault tolerance and allows incremental growth

Published in:

Distributed Computing Systems, 1992., Proceedings of the 12th International Conference on

Date of Conference:

9-12 Jun 1992