What do you know about sequencefileinputformat?
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Can hbase run without hadoop?
shouldn't DFS be able to handle large volumes of data already?
How many instances of a jobtracker run on hadoop cluster?
What is a namenode? How many instances of namenode run on a hadoop cluster?
On what basis Namenode will decide which datanode to write on?
What is the difference between traditional RDBMS and Hadoop?
What is a secondary namenode?
How to write a Custom Key Class?
Explain how is hadoop different from other data processing tools?
What are the benefits of block transfer?
How to enable recycle bin or trash in hadoop?
Give the use of the bootstrap panel.
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