what is the typical block size of an HDFS block?
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Explain what is sqoop in Hadoop ?
What is high availability in hadoop?
What is configuration of a typical slave node on Hadoop cluster? How many JVMs run on a slave node?
Main Components of Hadoop?
What happens to a namenode, when job tracker is down?
Should we use RAID in Hadoop or not?
What happens to a NameNode that has no data?
What are the basic available commands in Hadoop sqoop ?
What is difference between regular file system and HDFS?
How does a namenode handle the failure of the data nodes?
Name some companies that use Hadoop?
What is the meaning of the term "non-DFS used" in Hadoop web-console?
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