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Spatial Telemetric Data Warehouse Balancing Algorithm in Oracle9i/Java Environment

机译:Oracle9i / Java环境中的空间遥测数据仓库平衡算法

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Balancing of parallel systems workload is very essential to ensure minimal response time of tasks submitted to process. Complexity of data warehouse systems is very high with respect to system structure, data model and many mechanisms used, which have a strong influence on overall performance. In this paper we present a dynamic algorithm of spatial telemetric data warehouse workload balancing. We implement HCAM data partitioning scheme which use Hilbert curves to space ordering. The scheme was modified in a way that makes possible setting of dataset size stored in each system node. Presented algorithm iteratively calculates optimal size of partitions, which are loaded into each node, by executing series of aggregation on a test data set. We investigate both situation in which data are and are not fragmented. Moreover we test a set of fragment sizes. Performed system tests conformed possibility of spatial telemetric data warehouse balancing algorithm realization by selection of dataset size stored in each node. Project was implemented in Java programming language with using of a set of available technology.
机译:平行的平衡系统工作负载是非常重要的,无法确保提交的任务的最小响应时间。数据仓库系统的复杂性相对于系统结构,数据模型和许多使用的机制非常高,这对整体性能产生了强烈影响。本文介绍了一种动态的空间遥测数据仓库工作负载均衡算法。我们实施使用Hilbert曲线来空间排序的HCAM数据分区方案。该方案以一种方式修改,该方法使得可以设置存储在每个系统节点中的数据集大小。呈现的算法迭代地通过在测试数据集上执行一系列聚合来迭代地计算被加载到每个节点中的分区的最佳大小。我们调查了数据所在的两种情况,并且没有碎片化。此外,我们测试一组片段大小。执行的系统测试符合空间遥测数据仓库平衡算法通过选择存储在每个节点中的数据集大小的可能性。项目是以Java编程语言实施的,使用一组可用技术。

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