Thanks Luca, but what other way to sort a directory of sequence files? I don't plan to write a sorting algorithm in mappers/reducers, but hoping to use the sequenceFile.sorter instead.
Any ideas? Mark On Mon, May 23, 2011 at 12:33 AM, Luca Pireddu <pire...@crs4.it> wrote: > > On May 22, 2011 03:21:53 Mark question wrote: > > I'm trying to sort Sequence files using the Hadoop-Example TeraSort. But > > after taking a couple of minutes .. output is empty. > > <snip> > > > I'm trying to find what the input format for the TeraSort is, but it is > not > > specified. > > > > Thanks for any thought, > > Mark > > Terasort sorts lines of text. The InputFormat (for version 0.20.2) is in > > > hadoop-0.20.2/src/examples/org/apache/hadoop/examples/terasort/TeraInputFormat.java > > The documentation at the top of the class says "An input format that reads > the > first 10 characters of each line as the key and the rest of the line as the > value." > > HTH > > -- > Luca Pireddu > CRS4 - Distributed Computing Group > Loc. Pixina Manna Edificio 1 > Pula 09010 (CA), Italy > Tel: +39 0709250452 >
