Explain what happens in textinformat ?
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What is the relation between job and task in hadoop?
Explain the shuffle?
What is the functionality of jobtracker in hadoop?
Explain use cases where SequenceFile class can be a good fit?
What will be the consideration while we do Hardware Planning for Master in Hadoop architecture?
Is a job split into maps?
How many instances of a jobtracker run on hadoop cluster?
What is Writable & WritableComparable interface?
What is formatting of the dfs?
What does job conf class do?
Explain the use of .mecia class?
What are the basic available commands in Hadoop sqoop ?