2006 | OriginalPaper | Buchkapitel
Massive Data Oriented Replication Algorithms for Consistency Maintenance in Data Grids
verfasst von : Changqin Huang, Fuyin Xu, Xiaoyong Hu
Erschienen in: Computational Science – ICCS 2006
Verlag: Springer Berlin Heidelberg
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Based on the Grid Community (GC) for data usage, differentiated replication algorithms are proposed, by which the replica node is selected according to key replica node (
SHN
) and the other. First, The replicas are passed into
SHN
; second, if certain nodes in a GC often access the data resource, it or its nearby nodes become an optional replica node based on the storage and bandwidth. A consistency maintenance algorithm is presented to facilitate the coherence function in a differentiated manner: a pessimistic manner or an optimistic manner, and to update according to the context. The simulation results show that the differentiated mechanism can improve grid access performance.