Define a datanode?
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Is secondary namenode a substitute to the namenode?
What are sink processors?
What is InputSplit and RecordReader?
what should be the ideal replication factor in hadoop?
What is the use of Combiner?
What is a spill factor with respect to the ram?
On which port does ssh work?
Is hadoop based on google mapreduce?
What are the core components of Apache Hadoop?
What happens in a textinputformat?
Define streaming?
How can you connect an application
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