How can one increase replication factor to a desired value in Hadoop?
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How you can contact your client everyday ?
What are the network requirements for using hadoop?
What are combiners and its purpose?
In which location Name Node stores its Metadata and why?
What are sink processors?
What is rack-aware replica placement policy?
Explain how do ‘map’ and ‘reduce’ works?
Define tasktracker.
What are the hadoop's three configuration files?
What hadoop does in safe mode?
What is the functionality of jobtracker in hadoop?
What is a namenode? How many instances of namenode run on a hadoop cluster?