what is a datanode?
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Virtual Box & Ubuntu Installation?
What is configuration of a typical slave node on Hadoop cluster? How many JVMs run on a slave node?
How is hadoop different from other data processing tools?
What is the default replication factor?
What is oozie in hadoop?
What is Hadoop serialization?
What is a block and block scanner in HDFS?
What is a Record Reader in hadoop?
What is inputformat in hadoop?
Name some companies that use Hadoop?
How indexing is done in HDFS?
How is security achieved in Apache Hadoop?
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