Where do you specify the Mapper Implementation?
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In cloudera there is already a cluster, but if I want to form a cluster on ubuntu can we do it?
What is a Combiner?
Define a metadata?
How to resolve small file problem in hdfs?
Is hadoop based on google mapreduce?
What are the characteristics of hadoop framework?
What is Rack awareness?
What is a block and block scanner in HDFS?
What do you know about nlineoutputformat?
How do you define "block" in HDFS?
Explain what if rack 2 and datanode fails?
What is a secondary namenode?
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