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What Is Namenode And It’s Responsibilities?

Answer»

Namenode is a logical daemon name for a particular node. It’s HEART of the ENTIRE Hadoop system. Which store the METADATA in FsImage and GET all block information in the form of Heartbeat.

Namenode is a logical daemon name for a particular node. It’s heart of the entire Hadoop system. Which store the metadata in FsImage and get all block information in the form of Heartbeat.



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