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Issue 12

Hadoop (II)

Radu Vunvulea
Solution Architect
@iQuest
PROGRAMMING
In the previous number we’ve discovered what the secret of Hadoop is when it needs to store hundreds of TB. Based on a simple master-slave architecture, Hadoop is a system that can very easily store and manipulate a big amount of data. Hadoop contains two types of nodes for storing data. The NameNode is the node that plays the role of master. It knows the name and locations of each file that Hadoop stores.

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