What is difference between regular file system and HDFS?
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What does /etc /init.d do?
Explain what happens in textinformat ?
Explain what is sqoop in Hadoop ?
What is the use of Combiner?
Can we call vms as pseudos?
Can NameNode and DataNode be a commodity hardware?
How can we change the split size if our commodity hardware has less storage space?
Why is Apache Spark faster than Apache Hadoop?
What is nlineoutputformat?
What happens to a namenode, when job tracker is down?
Does Hadoop requires RAID?
Name some companies that use Hadoop?