Ideally what should be replication factor in a Hadoop cluster?
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Name the files which are used by the startup and shutdown commands?
Define “speculative execution” in hadoop?
What are the Hadoop features extended to its eco-system components ?
What is Reducer in Hadoop?
Why do we need Hadoop?
According to IBM, what are the three characteristics of Big Data?
Give me an example of document database ?
How Big is ‘Big Data’?
List out the some common problems faced by data analyst?
What are the differences between hadoop 1 and hadoop 2?
What are the main components of hadoop?
What are the important modes of hadoop?
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