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Number of Reducers

 
Mohamed El-Refaey
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Are there any limits to number of Reducers in Hadoop? and what are the best practice to design the mappers and reducers in Hadoop environments?

Regards,
Mohamed
 
Arun Vasu
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The best practise is to keep the number of redulers slightly less than the number of available reduce slots in your cluster.
Get more info from Hadoop wiki
 
Mohamed El-Refaey
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Arun Vasu wrote:The best practise is to keep the number of redulers slightly less than the number of available reduce slots in your cluster.
Get more info from Hadoop wiki


Thanks Arun, I got it!
 
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