What is TextInputFormat in Hadoop?
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What are the actions followed by hadoop?
What does hadoop-env.sh do?
What does rack awareness mean?
Can you explain rack awareness?
What are the major differences between Hadoop 2 and Hadoop 3?
What is High Availability feature in Hadoop2?
Ideally what should be the replication factor in hadoop?
What is streaming in Hadoop?
What is a rack?
What jobtracker is in hadoop? What are the activities followed by hadoop?
What is a record reader?
Which modes can Hadoop be run in? List a few features for each mode?
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