Hadoop 主要用来对非结构化或半结构化（ HBase ）数据进行存储 和分析，而结构化的数据则一般使用数据库来进行存储和访问。本文 的主要内容则是讲述如何将 Hadoop 与现有的数据库结合起来， 在 Hadoop 应用程序中访问数据库中的文件。-Hadoop is mainly used for unstructured or semi-structured (HBase) data storage and analysis, and structured data are g

WROX 2010年出品: Alfresco is an open source Enterprise Content Management (ECM) system. It was originally created in 2005 by a team from Documentum, including its co-founder, as an open source alternative to proprietary vendors in the $4 billion E