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2008
IEEE

Robust Runtime Optimization of Data Transfer in Queries over Web Services

10 years 1 months ago
Robust Runtime Optimization of Data Transfer in Queries over Web Services
Self-managing solutions have recently attracted a lot of interest from the database community. The need for self-* properties is more evident in distributed applications comprising heterogeneous and autonomous databases and functionality providers. Such resources are typically exposed as Web Services (WSs), which encapsulate remote DBMSs and functions called from within database queries. In this setting, database queries are over WSs, and the data transfer cost becomes the main bottleneck. To reduce this cost, data is shipped to and from WSs in chunks; however the optimum chunk size is volatile, depending on both the resources' runtime properties and the query. In this paper we propose a robust control theoretical solution to the problem of optimizing the data transfer in queries over WSs, by continuously tuning at runtime the block size and thus tracking the optimum point. Also, we develop online system identification mechanisms that are capable of estimating the optimum block si...
Anastasios Gounaris, Christos Yfoulis, Rizos Sakel
Added 01 Nov 2009
Updated 01 Nov 2009
Type Conference
Year 2008
Where ICDE
Authors Anastasios Gounaris, Christos Yfoulis, Rizos Sakellariou, Marios D. Dikaiakos
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