What is the difference between Gen1 and Gen2 Hadoop with regards to the Namenode?
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Did you ever built a production process in hadoop ? If yes then what was the process when your hadoop job fails due to any reason?
What is inputformat in hadoop?
Should we use RAID in Hadoop or not?
How many instances of tasktracker run on a hadoop cluster?
Define a combiner?
How can we change the split size if our commodity hardware has less storage space?
Define a job tracker?
Define fault tolerance?
Main Components of Hadoop?
What is 'Key value pair' in HDFS?
Explain the overview of hadoop history breifly?
What is partioner in hadoop? Where does it run,mapper or reducer?
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