Concurrency Control for Global Transaction Management in MDBSs

The objectives of global transaction management in multidatabase systems(MDBS) are to avoid the inconsistent retrievals and guarantee the global serializability under the existence of indirect conflict which is unknown to to the global transaction manager(GTM). Many researches have shown that it is...

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Bibliographic Details
Published inDatabase and Expert Systems Applications Vol. 1677; pp. 812 - 821
Main Authors Lee, Kyu-Woong, Park, Seog, Oh, Gil-Rok
Format Book Chapter
LanguageEnglish
Published Germany Springer Berlin / Heidelberg 1999
Springer Berlin Heidelberg
SeriesLecture Notes in Computer Science
Subjects
Concurrency Control
Data Item
Integrity Constraint
Local Autonomy
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Summary:The objectives of global transaction management in multidatabase systems(MDBS) are to avoid the inconsistent retrievals and guarantee the global serializability under the existence of indirect conflict which is unknown to to the global transaction manager(GTM). Many researches have shown that it is difficult to design the global concurrency control method because of local autonomy. In these method global transactions have a few opportunities to be executed concurrently. We concentrate our attention on 1) investigation into the more accurate indirect conflict situation and 2) supporting the higher concurrency degree by using the concept of global integrity constraints. We define the multidatabase transaction model and then propose the concurrency control protocols. In our method the more global transaction can be concurrently executed, since the refined boundary of possibility of indirect conflict is offered.
ISBN:3540664483
9783540664482
ISSN:0302-9743
DOI:10.1007/3-540-48309-8_76