Home > Software > BIGDATA > HADOOP
Interview Questions   Tutorials   Discussions   Programs   Videos   Discussion   

HADOOP - What happens if you don?t override the Mapper methods and keep them as it is?




596
views
asked SRVMTrainings January 8, 2013 09:51 PM  

What happens if you don?t override the Mapper methods and keep them as it is?


           

1 Answers



 
answered By   0  
If we don't override the mapper method the default Identity Mapper will call automatically, we have to declare bellow two things.
import org.apache.hadoop.mapred.lib.IdentityMapper; and conf.setMapperClass(IdentityMapper.class) 
flag   
   add comment

Your answer

Join with account you already have

FF

Preview


Ready to start your tutorial with us? That's great! Send us an email and we will get back to you as soon as possible!

Alert