What do sorting do?
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Who invented hadoop?
Explain the difference between NameNode
What is a task instance in hadoop? Where does it run?
What Mapper does?
Is hadoop the future?
Is hadoop open source?
Explain what is sqoop in Hadoop ?
How to change Replication Factor For below cases ?
Explain the Job OutputFormat?
Can you tell us more about ssh?
What is the use of Combiner?
How will format the HDFS ?
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