What is the sequencefileinputformat in hadoop?
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what should be the ideal replication factor in hadoop?
What is structured data?
Did you ever built a production process in hadoop ? If yes then what was the process when your hadoop job fails due to any reason?
Can you give us some more details about ssh communication between masters and the slaves?
Command to format the NameNode?
What is Apache Hadoop? Why is Hadoop essential for every Big Data application?
What happens in a textinputformat?
Define a task tracker?
Explain the difference between gen1 and gen2 hadoop with regards to the namenode?
What are different hdfs dfs shell commands to perform copy operation?
How a task is scheduled by a jobtracker?
How can you connect an application
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