基于Hadoop架构的分布式计算和存储技术及其应用

介绍了Hadoop架构的主要构成,通过一个实例详细阐述了Hadoop架构的MapReduce实现机制;开发了一个基于Hadoop架构职工工资统计应用实例,并根据该实例分析了其在单节点模式、伪分布模式和完全分布模式应用中的运行效率.;The key components of Hadoop are introduced first,then the MapReduce implementation mechanism is analyzed.What is more important,an application for statistics of employee salary is developed and the efficiency comparison is given in the three different applications,namely,the single node model,pseudo-distribution model and the full distribution model