2013年4月9日
hadoop测试题目-每天5题，总35题，第二天
摘要： 地址：http://www.cnblogs.com/jarlean/archive/2013/04/09/3009855.htmlQ6. What is the purpose of RecordReader in Hadoop The InputSplithas defined a slice of work, but does not describe how to access it. The RecordReaderclass actually loads the data from its source and converts it into (key, value) pairs 阅读全文
posted @ 2013-04-09 12:56 jarlean 阅读(477) 评论(0) 推荐(0) 编辑