Why does one remove or add nodes in a Hadoop cluster frequently

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This often happens in Hadoop Cluster, but why is a confusion that I always had. Can you please clear that to me?
Dec 14, 2018 in Big Data Hadoop by Neha
 • 6,300 points • 2,308 views

1 answer to this question.

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One of the most attractive features of the Hadoop framework is its utilization of commodity hardware. However, this leads to frequent “DataNode” crashes in a Hadoop cluster. Another striking feature of Hadoop Framework is the ease of scale in accordance with the rapid growth in data volume. Because of these two reasons, one of the most common task of a Hadoop administrator is to commission (Add) and decommission (Remove) “Data Nodes” in a Hadoop Cluster.

Read this blog to get a detailed understanding on commissioning and decommissioning nodes in a Hadoop cluster.

answered Dec 14, 2018 by Frankie
 • 9,830 points

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