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HDFS

       Hadoop Introduction

       Getting Started with HDFS

       Features of HDFS

       How exactly Data is Stored on HDFS Cluster?

       Hadoop Architecture

       Replication 

       SafeMode

       Configuration Files

       Namenode, Secondary Namenode and Datanodes

       Heart Beat Mechanism

       Hadoop CLI Commands 

 

MapReduce

       MapReduce Introduction

       Phases of MapReduce

 

Apache PIG

       PIG Introduction

       Execution Modes of PIG 

       Differences between MapReduce and PIG

HIVE

        Hive Introduction

        Hive Tables

        Hive Metastore