Explain about Hadoop file system and processing framework?
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Explain Data Locality in Hadoop?
Ideally what should be the replication factor in hadoop?
Explain the difference between an inputsplit and a block?
Mention what are the three modes in which hadoop can be run?
What are some typical functions of Job Tracker?
What is JobTracker?
What is Disk Balancer in Hadoop?
What happens in text format?
What is TextInputFormat in Hadoop?
What jobtracker is in hadoop? What are the activities followed by hadoop?
How often DataNode send heartbeat to NameNode in Hadoop?
Can you define a checkpoint?
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