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Apache Hadoop Hive

Apache Hadoop Hive. What is it ? Architecture Related Projects Hive DDL Hive DML HiveQL Examples Business Intelligence. Hadoop – What is it ?. A data warehouse for Hadoop Open source writen in Java Holds meta data in a relational database Allows SQL like queries

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Apache Hadoop Hive

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  1. Apache Hadoop Hive • What is it ? • Architecture • Related Projects • Hive DDL • Hive DML • HiveQL Examples • Business Intelligence

  2. Hadoop – What is it ? • A data warehouse for Hadoop • Open source writen in Java • Holds meta data in a relational database • Allows SQL like queries • Supports “big data” data sets • Offers built in and user defined functions • Has indexing

  3. Hive – Architecture Where does Hive sit in the Hadoop architecture ?

  4. Hive – Architecture • Given an existing HDFS and Hadoop cluster • Then add Hive and the meta data structure • Use Flume and Sqoop to move data • Use Hive LOAD DATA command to load from flat files • Use ODBC for connectivity to your BI layer

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