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HADOOP - Explain the core methods of the Reducer?




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asked SRVMTrainings July 7, 2013 03:20 AM  

Explain the core methods of the Reducer?


           

3 Answers



 
answered By KIRAN-708   0  
public void setup(context)

This method check for the config parameter like distributed cache ,heap size , input data size etc
public void reduce(Key,Value,context)
Execute the reduce function (your customized code )

public void cleabup(context)
clear the all temp files
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answered By   0  
public void setup(context)
public void reduce(Key,Value,context)
public void cleabup(context)
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answered By   0  
job tracker ,task tracker
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