Sequential read-update HFile

[Nikolaos Papailiou]

Hi all,

I would like to sequentially read and update some HFiles. That means 
that I want something like a HFileScanner but with the capability of 
directly updating the current key/value pair. I have been trying to do 
that with sequential puts and major compactions of the region but the 
performance is very poor. Is there another way to do this efficiently?

Thanks,
Nikos