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Apache Hadoop

Main components of Hadoop include NameNode, DataNode, SecondaryNode, JobTracker, TaskTracker and HDFS. Hadoop can be run in 3 different modes:

Standalone
Pseudo-distributed
Fully distributed

The following session explains in detail about:

Different modes of Hadoop
Hadoop Commands and Web URLs
Sample Cluster Configuration
Hadoop Configuration Files
Document Descriptor for each component
Sample MapReduce program

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Installation

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