Explain the use of tasktracker in the hadoop cluster?
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Explain the master class and the output class do?
What are the main components of a Hadoop Application?
Where is the Mapper Output intermediate kay-value data stored ?
What is rack-aware replica placement policy?
How many instances of tasktracker run on a hadoop cluster?
Explain InputFormat?
Is it necessary to write jobs for hadoop in the java language?
What is formatting of the dfs?
Explain the Job OutputFormat?
What are watches?
How the Client communicates with HDFS?
Virtual Box & Ubuntu Installation?
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