摘要
ETL工具在构造数据仓库过程中负责数据抽取、转换和加载的工作。商用的ETL工具一般需要运行在高性能的服务器如小型机上进行大量的计算工作,造成数据仓库项目在硬件方面的成本必须大大的提高。针对计算效率的问题,提出了一种多计算服务器的协同计算模型,通过创建一协调中心来控制多计算服务器的协同处理计算来增加计算能力。与原有的ETL工具相比,可以在一定程度上降低ETL工具对服务器硬件性能的要求。
ETL tool do extraction, transformation and loading job in the process of building a data warehouse. Commercial ETL tool must run at high-powered server such as minicomputers to do large number of computation, It greatly increased the cost in purchasing hardware. According to the problem about computation efficiency, a cooperative computation model among multi-servers was put forward. A coordinator was created to control multi-server＇s cooperative process for reinforcing server＇s computation ability. Compared to the former ETL tools, it reduces the requirements for the server＇s performance in a certain extent.
出处
《通信学报》
EI
CSCD
北大核心
2006年第11期177-182,共6页
Journal on Communications
关键词
ETL
协同工作
分布式计算
ETL
cooperative work
distributed computation
