associate with each line an identifier (eg line number) and afterwards resort the data by that
Miles 2009/3/13 Roldano Cattoni <catt...@fbk.eu>: > The task should be simple, I want to put in uppercase all the words of a > (large) file. > > I tried the following: > - streaming mode > - the mapper is a perl script that put each line in uppercase (number of > mappers > 1) > - no reducer (number of reducers set to zero) > > It works fine except for line order which is not preserved. > > How to preserve the original line order? > > I would appreciate any suggestion. > > Roldano > > -- The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336.
