How many instances of JobTracker can run on a Hadoop Cluser?
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how is a file of the size 1 GB uncompressed
How client application interacts with the NameNode?
What is Disk Balancer in Apache Hadoop?
what should be the ideal replication factor in hadoop?
What are the limitations of importing RDBMS tables into Hcatalog directly?
Who is a 'user' in HDFS?
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Define a metadata?
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Command to format the NameNode?
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