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A Classification of Skew Effects in Parallel Database Systems

A Classification of Skew Effects in Parallel Database Systems

Book SeriesLecture Notes in Computer Science
PublisherSpringer Berlin / Heidelberg
ISSN0302-9743 (Print) 1611-3349 (Online)
VolumeVolume 2150/2001
BookEuro-Par 2001 Parallel Processing
DOI10.1007/3-540-44681-8
Copyright2001
ISBN978-3-540-42495-6
DOI10.1007/3-540-44681-8_42
Pages291-300
Subject CollectionComputer Science
SpringerLink DateMonday, January 01, 2001
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A Classification of Skew Effects in Parallel Database Systems

Holger Märtens6 Contact Information

(6)  Institut für Informatik, Universität Leipzig, Postfach 920, D-04009 Leipzig, Germany
Abstract
Skew effects are a serious problem in parallel database systems, but the relationship between different skew types and load balancing methods is still not fully understood. We develop and compare two classifications of skew effects and load balancing strategies, respectively, to match their relevant properties.
Our conclusions highlight the importance of highly dynamic scheduling to optimize both the complexity and the success of load balancing. We also suggest the tuning of database schemata as a new anti-skew measure.

Contact Information Holger Märtens
Email: maertens@informatik.uni-leipzig.de
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