What happens to a NameNode that has no data?
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How will you make changes to the default configuration files?
What are the benefits of block transfer?
what should be the ideal replication factor in hadoop?
How to resolve IOException: Cannot create directory
Explain the Job OutputFormat?
What Mapper does?
What is the full form of fsck?
Can the balancer be run while Hadoop is in use?
What is Input Split in hadoop?
Explain the benefits of block transfer?
Input Split & Record Reader and what they do?
Is client the end user in HDFS?