How to create the directory when name node is in safe mode?
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What is the difference between namenode and datanode in hadoop?
What are the most common OutputFormat in Hadoop?
How do you overwrite replication factor?
What is the use of context object?
What kind of hardware is best for hadoop?
Can you explain record reader?
List out some common problems faced by data analyst?
Mention how many inputsplits is made by a hadoop framework?
Give me examples of unstructured data?
What is Small File Problem in Hadoop? How can it be resolved?
What are the benefits yarn brings in to hadoop?
How to add/delete a Node to the existing cluster?
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