Samir, You can use MultipleInputs for multiple forms of inputs per mapper (with their own input K/V types, but common output K/V types) with a common reduce-side join/compare.
See http://hadoop.apache.org/common/docs/current/api/org/apache/hadoop/mapreduce/lib/input/MultipleInputs.html. On Thu, May 24, 2012 at 1:17 AM, samir das mohapatra <samir.help...@gmail.com> wrote: > Hi All, > How to compare to input file In M/R Job. > let A Log file around 30GB > and B Log file size is around 60 GB > > I wanted to know how i will define <K,V> inside the mapper. > > Thanks > samir. -- Harsh J
