Adapting to Changing Resource Performance in Grid Query Processing
Adapting to Changing Resource Performance in Grid Query Processing
复制标题
适应网格查询处理中不断变化的资源性能
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
P. Watson
中科院分区：
文献类型：
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作者：
A. Gounaris;Jim Smith;N. Paton;R. Sakellariou;A. Fernandes;P. Watson
网格提供了支持协调使用各种资源的设施，从而为广域查询处理提供了新的机会。然而，网格资源不仅是异构的，还可能表现出不可预测的、易变的行为。因此，网格上的查询处理需要自适应，以应对不断变化的资源特征，如机器负载。为了应对这一挑战，提出了一种体系结构，该体系结构已经在实例化它的支持网格的自适应查询处理器的原型上进行了经验评估。
The Grid provides facilities that support the coordinated use of diverse resources, and consequently, provides new opportunities for wide-area query processing. However, Grid resources, as well as being heterogeneous, may also exhibit unpredictable, volatile behaviour. Thus, query processing on the Grid needs to be adaptive, in order to cope with evolving resource characteristics, such as machine load. To address this challenge, an architecture is proposed that has been empirically evaluated over a prototype Grid-enabled adaptive query processor instantiating it.