Explain the features of fully distributed mode?
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What are the two main parts of the hadoop framework?
What does job conf class do?
What if rack 2 and datanode fails?
How did you debug your Hadoop code ?
What is inputsplit in hadoop? Explain.
Does this lead to security issues?
Is fs.mapr.working.dir a single directory?
What is a Task instance in Hadoop? Where does it run?1
Does Hadoop requires RAID?
On what basis Namenode will decide which datanode to write on?
What is Input Split in hadoop?
when hadoop enter in safe mode?