Hadoop

Name Node Federation Checkpoint Backup and Snapshots

Name Node Federation, Checkpoint, Backup, and Snapshots in Hadoop Cluster – Big Data Analytics This article discusses basic Hadoop concepts in Big Data Analytics such as, Name Node Federation Checkpoint and Backup Snapshots Video Tutorial 1. Name Node Federation Earlier versions of HDFS (that is Hadoop V 1.0) provides a single namespace for the entire …

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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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