What are the functionalities of jobtracker?
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What are the core components of Apache Hadoop?
What is partioner in hadoop? Where does it run,mapper or reducer?
Where do you specify the Mapper Implementation?
Does Hadoop requires RAID?
What are the port numbers of namenode, job tracker and task tracker?
What are the problems with Hadoop 1.0?
Who invented hadoop?
What is the purpose of dfsadmin tool?
What is nlineoutputformat?
What are the two main components of ResourceManager?
Why we cannot do aggregation (addition) in a mapper? Why we require reducer for that?
Explain the features of fully distributed mode?
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