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Change output reduce

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Change output reduce

New Contributor

I ´m creating a map/reduce application with hadoop and need to add an initial text to full output class provides default reduce. I only managed to add this text several times, because the reduce run several times for each block of data, but what I need is just add it once at the beginning of the total output.

Would it be possible to realize it in some way?

 

Thank you so much!

 

Llanos