Where is job tracker in Hadoop?

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Tags

1. #chosen
2. #submits
3. #least
4. #client
5. #applications
6. #jobtracker
7. #nodes
8. #farms
9. #cluster
10. #specific
11. #tasktracker
12. #within
13. #tracker
14. #submit
15. #service
16. #hadoop
17. #mapreduce
18. #tasks
19. #ideally