What are the major differences between Hadoop 2 and Hadoop 3?
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Answer Posted / Kailash Chandra
Hadoop 3 introduces several improvements over Hadoop 2, including a new networking stack (Netty) for better performance and support for IPv6. It also offers simplified configuration management, eliminating many deprecated components from Hadoop 2. Another significant change is the restructuring of the NameNode into a separate Namenode-Journalnode architecture to improve fault tolerance. Other improvements include a new resource manager (RM) and a new application history service.
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