What are the four basic parameters of a mapper?
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What is the block size in Hadoop?
What is JPS? Why is it used in Hadoop?
What is single node cluster in Hadoop? for what all purposes Hadoop run on a single node cluster?
If datanodes increase, then do we need to upgrade namenode?
Explain what is a task tracker in hadoop?
Why do we need Hadoop?
What is Distributed Cache in Hadoop?
Explain small file problem in hadoop
Which modes can Hadoop be run in? List a few features for each mode?
How to create hadoop archive?
What is a namenode?
If DataNode increases, then do we need to upgrade NameNode in Hadoop?
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