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More from Nitish Bhardwaj (20)
Pptx present
- 4. NameNode
• Where is NameNode?
• Master
• HDFS(Hadoop Distributed File
System)
• What is NameNode?
• 資料之位置資訊
• 資料之屬性
??
- 6. DataNode
• What is DataNode
• 存放資料
• Where is DataNode
• HDFS
• Slaves (and Master)
- 14. SecondaryNameNod
e
• What is SecondaryNameNode?
• NameNode發生錯誤時補救
• Where is SecondaryNameNode?
• Master
- 16. MapReduce
User Master
Slave1
Reduc
e
Final
Result
Slave2
A
A1
A2
Task
NameNode
Task
Result
1
Result
2
HDFS