Hello!
  Suppose that we have the files F1, F2,..Fk given by the input splitter to the 
map class, what is the order in which they will arrive when map function  is 
applied? 
  What is interesting me  if  it is possible that in the map function to arrive 
mixed key-value pairs from different files? They keys will arrive related with 
their file, till no more keys are left from source file or they can arrive one 
key from F1 one key from Fk and so on.
  Example:
   Mixed key value pairs at the map function:
    K1 from F1
    K5 from F5
    K7 from F8 
  etc

 ordered key-value pairs:
    K1 from F1
   ..
    K_end_F1 from F1
    K5 from F5
..  
  K_end_F5 from F5
  and so on.

I'll look forward for your answer.
  Regards,
 Florin  
    

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