Is it necessary to write jobs for hadoop in the java language?
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What are the site-specific configuration files in Hadoop?
What is the purpose of RawComparator interface?
Why we cannot do aggregation (addition) in a mapper? Why we require reducer for that?
Explain the features of fully distributed mode?
What if a namenode has no data?
Does hadoop always require digital data to process?
What hadoop does in safe mode?
How can you connect an application
In which location Name Node stores its Metadata and why?
What is hbase in hadoop?
What are combiners and its purpose?
What is the Use of SSH in Hadoop ?