Hadoop Architecture version 1.x
Hadoop Architecture is split into 3 categories:- Edge Node Name Node and Job Tracker Node Data Nodes and Task Tracker Nodes Client/Edge Node: It is the interface between Hadoop cluster and outside network.For this reason, they are sometimes referred as gateway nodes. Client applications talk to the Name Node whenever they wish to locate a file, or when they want to add/copy/move/delete a file. The Name Node responds the successful requests by returning a list of relevant Data Node servers where the data lives. Usage They are often used as staging areas for data being transferred into the Hadoop cluster. Most commonly, edge nodes are used to run client applications and cluster administration tools. Tools like Oozie, Pig, Sqoop, and management tools such as Hue and Ambari run well there. Client Node directly controls Data Node based on information. Master/Slave: Here, we have a concept of Master...
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