Nested transactions: an approach to reliable distributed computing
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Concurrency control and recovery in database systems
Concurrency control and recovery in database systems
Transaction management in distributed heterogeneous database management systems
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The Concurrency Control Problem in Multidatabases: Characteristics AndSolutions
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Ensuring Transaction Atomicity in Multidatabase Systems
Overview of Multidatabase Transaction Management
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Multidatabase systems based on single monolithic multidatabase servers are not realistic and do not scale with increases in the number of participant component database systems and the radius of service. In this paper, we focus on an architecture in which the multidatabase system consists of multiple, possibly heterogeneous peer servers distributed on a communication network. A global multidatabase request can span multiple servers, causing some servers to act as component database systems. We refer to this configuration as a composite multidatabase system.We examine the effect of multidatabase composition on global concurrency control algorithms proposed for single server systems. Our examination is simplified by assuming a homogeneous composite multidatabase system; that is, multiple instances of the same multidatabase server managing disjoint sets of component database systems. In particular, we look at two global concurrency control algaorithms for guaranteeing multidatabase serializability: site locking and forced conflicts. We propose a design for the composite counterparts of these algorithms to show that the task of adapting existing global concurrency control algorithms to composite multidatabase systems is non-trivial.