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Analyzes the Hadoop architecture and MapReduce Working principle How to write Mapper and Reducer classes, and how to use the object 3
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2011 International Symposium on Intelligence Information Processing and Trusted ComputingHuanggang Normal University Hubei, ChinaGaizhen Yang
The Application of MapReduce in the Cloud Computing
Speaker : Kun-Hsiang, Chang
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• Abstract• Hadoop• MapReduce• MapReduce Programmed To Perform Task
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Outline
Analyzes the Hadoop architecture and MapReduce Working principle
How to write Mapper and Reducer classes, and how to use the object
3
Abstract
NameNode
DataNode
Client
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Hadoop-HDFS
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Hadoop-MapReduce
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MapReduce
MapReduce programs can be run in three modes:
Standalone Mode
Pseudo-distributed Mode
Fully-distributed Mode
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MapReduce
Inputs division and dispatch
task configuration
task executive
Create customized Mapper and Reducer
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MapReduce Programmed To Perform Task
Speaker : Kun-Hsiang, Chang
End…
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