The underlying programming model for MapReduce has been revamped and has changed quite a bit. Chuck Lam, the author of Hadoop in Action Benefits that keep getting better include high levels of ...

plus a runtime environment where PigLatin programs are executed. Cloudera’s distribution of Hadoop uses Pig and Hive as analytical languages; Forrester lists it under Hadoop’s “modeling and ...

plus a runtime environment where PigLatin programs are executed. Cloudera’s distribution of Hadoop uses Pig and Hive as analytical languages; Forrester lists it under Hadoop’s “modeling and ...

You'll hear it mentioned often, along with associated technologies such as Hive and Pig. But what does it do, and why do you need all its strangely-named friends, such as Oozie, Zookeeper and Flume?

Hive, a means of querying data crunched by Hadoop; Zookeeper, a means of synchronizing Hadoop and other platforms across a large cluster of servers; and, yes, Mahout, one of the newer projects.

Having introduced various components of Hadoop Ecosystem in part 1 and part 2, the last part of this series covers Hive, HBase, Mahout, Sqoop and ZooKeeper. Apache Hive is a data warehouse ...