Hi I have a very large file of size 1.4 GB. Each line of the file is a number . I want to find the sum all those numbers. I wanted to use NLineInputFormat as a InputFormat but it sends only one line to the Mapper which is very in efficient. So can you guide me to write a InputFormat which splits the file into multiple Splits and each mapper can read multiple line from each split
Regards Madhukar
