961万人の食卓を支えるデータ解析This document discusses Hadoop and its ecosystem. It covers Hadoop distributions like Cloudera and Amazon's Elastic MapReduce service. It also discusses running SQL-like queries using MapReduce and moving data between MySQL and Hadoop. Key algorithms like map and reduce functions are explained through examples. Different Hadoop deployment options on EC2 like standalone, Cloudera, and EMR are also
