Hadoop

Components and Architecture Hadoop Distributed File System (HDFS)

Components and Architecture Hadoop Distributed File System (HDFS) The design of the Hadoop Distributed File System (HDFS) is based on two types of nodes: a NameNode and multiple DataNodes. No data is actually stored on the NameNode. A single NameNode manages all the metadata needed to store and retrieve the actual data from the DataNodes. …

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