Apache Hadoop is the de facto framework for processing and storing large quantities of data, what is often referred to as “big data”. The Apache Hadoop ecosystem consists of dozens of projects providing functionality ranging from storing, querying, indexing, transferring, streaming, and messaging, to list a few. This book discusses some of the more salient projects in the Hadoop ecosystem.
Chapter 1 introduces the two core components of Hadoop—HDFS and MapReduce. Hadoop Distributed Filesystem (HDFS) is a distributed, portable filesystem designed to provide high-throughput streaming ...
