Abstract
Fragmentation plays a very important role in databases since this achieves an adequate design in distributed environments such as the cloud, which in terms of execution cost of the read and write operations, benefits are obtained. This work presents an improvement to the design of the overlapping fragmentation algorithm shown in previous works, which is part of a method to also carry out allocation and replication. The improvement consists of ordering the predicates by cost and in this way obtaining each predicate contemplating that the fragment overlap will occur, however, the fragments with a higher cost will be kept more intact than those with a lower cost. Experiments with the TPC-E benchmark adapted to a distributed environment demonstrate that our enhanced approach achieves a significant reduction of query response time.
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Acknowledgements
The authors thank The National Technological of Mexico (TecNM) for its support for this work. Also, the National Council of Science and Technology (CONACYT) has sponsored this research paper.
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Castro-Medina, F., Rodríguez-Mazahua, L., López-Chau, A., Alor-Hernández, G., Juárez-Martínez, U., Sánchez-Ramírez, C. (2022). An Improvement to FRAGMENT: A Web Application for Database Fragmentation, Allocation, and Replication Over a Cloud Environment. In: Yang, XS., Sherratt, S., Dey, N., Joshi, A. (eds) Proceedings of Sixth International Congress on Information and Communication Technology. Lecture Notes in Networks and Systems, vol 216. Springer, Singapore. https://doi.org/10.1007/978-981-16-1781-2_60
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