What is hbase in hadoop?
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How will you make changes to the default configuration files?
What does /etc /init.d do?
What is the default block size in hdfs?
What are watches?
What if a namenode has no data?
Can you explain how do ‘map’ and ‘reduce’ work?
Can we call vms as pseudos?
On what basis Namenode will decide which datanode to write on?
How the Client communicates with HDFS?
What happens in a textinputformat?
What is hbase in hadoop?
Explain why do we need hadoop?