Difference between Name Node and Job Tracker
NameNode And DataNode
(Name Node is basically a data dictionary in layman language)
Technical Sense: NameNode stores MetaData(No of Blocks, On Which Rack which DataNode the data is stored and other details) about the data being stored in DataNodes whereas the DataNode stores the actual Data.
Physical Sense: In a multinode cluster NameNode and DataNodes are usually on different machines. There is only one NameNode in a...
difference between name node and job tracker
NameNode And DataNode
(Name Node is basically a data dictionary in layman language)
Technical Sense: NameNode stores MetaData(No of Blocks, On Which Rack which DataNode the data is stored and other details) about the data being stored in DataNodes whereas the DataNode stores the actual Data.
Physical Sense: In a multinode cluster NameNode and DataNodes are usually on different machines. There is only one NameNode in a...
difference between name node and job tracker