Hi,
I have a question on isSplitable methid of FileInpoutFormat class. As per the definition this method will restrict tpo crate multiple mapper on the input split. But the mapper is based on the number of splits of the file. Like find a big file is broken into 3 splits say 64,64 and 32mb. There will be 3 map tasks of each input split. If I override isSplitable() with the false value, what it will restrict, any way there will be 3 mappers to process the file based on the input splits.
I have a question on isSplitable methid of FileInpoutFormat class. As per the definition this method will restrict tpo crate multiple mapper on the input split. But the mapper is based on the number of splits of the file. Like find a big file is broken into 3 splits say 64,64 and 32mb. There will be 3 map tasks of each input split. If I override isSplitable() with the false value, what it will restrict, any way there will be 3 mappers to process the file based on the input splits.