These are the popular InputFormats
TextInputFormat (key:LongWritable, value:Text)
KeyValueTextInputFormat (key:Text, value:Text)
SequenceFileInputFormat<K,V>
These are the popular InputFormats
TextInputFormat (key:LongWritable, value:Text)
KeyValueTextInputFormat (key:Text, value:Text)
SequenceFileInputFormat<K,V>