What is IdentityMapper?
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What should be the ideal replication factor in Hadoop Cluster?
What do slaves consist of?
How can you connect an application
What do you know by storage and compute node?
What is the difference between rdbms and hadoop?
What is Rack Awareness in Apache Hadoop?
What are the functions of NameNode?
Define a metadata?
Virtual Box & Ubuntu Installation?
What is the function of ApplicationMaster?
Explain the difference between gen1 and gen2 hadoop with regards to the namenode?
Why we cannot do aggregation (addition) in a mapper? Why we require reducer for that?