In our Hadoop Architecture we
have 5 Daemons, they are
1. NAME NODE (NN)
2. SECONDARY NAME NODE (SNN)
3. DATA NODE (DN)
4. JOB TRACKER (JT)
5. TASK TRACKER (TT)
- In Cloudera Distribution Hadoop
(CDH) Mechanism we have Single NAME NODE with the help of SECONDARY NAME NODE.
-
In MAP R Mechanism we can maintain multiple NAME NODES.
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