How will format the HDFS ?
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What is a Record Reader in hadoop?
Explain how can we change the split size if our commodity hardware has less storage space?
What is the function of NodeManager?
What is the use of Combiner?
What is IdentityMapper?
What stored in HDFS?
Define a commodity hardware? Does commodity hardware include ram?
Explain the basic architecture of Hadoop?
What does /var/hadoop/pids do?
What is Hadoop streaming?
what is a datanode?
Is secondary namenode a substitute to the namenode?