What is the difference between NameNode and DataNode in Hadoop?

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Tags

1. #difference
2. #hadoop
3. #between
4. #multiple
5. #datanode
6. #stores
7. #brief
8. #actual
9. #single
10. #namenode
11. #metadata
12. #controls
13. #manages
14. #slave
15. #master
16. #instructed
17. #while
18. #nodes
19. #system