They can be different if maps read HDFS files directly instead of or on top of getting key-val pairs via the map interface.
HDFS_BYTES_READ will always be greater than or equal to map-input-bytes. Thanks, +Vinod On Apr 29, 2013, at 1:50 AM, Pralabh Kumar wrote: > Hi > > What's the relationship between HDFS_BYTE_READ and Map input bytes counter . > Why can they be different for particular MR job. > > Thanks and Regards > Pralabh Kumar >
