What is zookeeper in hadoop?
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On which port does ssh work?
What are watches?
How to change replication factor of files already stored in HDFS?
What are the stable versions of Hadoop?
What is the functionality of jobtracker in hadoop? How many instances of a jobtracker run on hadoop cluster?
Is a job split into maps?
how is a file of the size 1 GB uncompressed
What is Hadoop serialization?
Explain a simple Map/Reduce problem.
How we can change Replication factor when Data is on the fly?
How to exit the vi editor?
Explain what happens in textinformat ?
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