Can DataNode and NameNode be commodity hardware?

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I have a bit confused about this, can I get the clarification?
Dec 18, 2018 in Big Data Hadoop by Frankie
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1 answer to this question.

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DataNodes are the commodity hardware only as it can store data like laptops and personal computers, these are required in large numbers. Instead, NameNode is the master node; it stores metadata about all the blocks stored in HDFS. It needs high memory space, thus works as a high-end machine with great memory space.

answered Dec 18, 2018 by Neha
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