Really ? WIll that work ? input something like this
tag tag2 tag tag2 tag3 ... produces output tag 2 tag2 2 tag3 1 .... Swapping key/value will then map all 2's to what ? On Thu, Jul 9, 2009 at 4:53 PM, jason hadoop <[email protected]> wrote: > The simplest way is to swap the key and value in your mapper's output, then > swap them back afterward. > > On Thu, Jul 9, 2009 at 7:52 AM, Marcus Herou <[email protected] > >wrote: > > > Hi many times I want to sort by value instead of key. > > > > For instance when counting the top used tags in blog posts or the ten > most > > visited pages on a certain site and so on. > > > > Wondering if that is even possible with hadopp or if I need to process > the > > file outside of hadoop. > > > > Cheers > > > > /Marcus > > > > -- > > Marcus Herou CTO and co-founder Tailsweep AB > > +46702561312 > > [email protected] > > http://www.tailsweep.com/ > > > > > > -- > Pro Hadoop, a book to guide you from beginner to hadoop mastery, > http://www.amazon.com/dp/1430219424?tag=jewlerymall > www.prohadoopbook.com a community for Hadoop Professionals > -- Marcus Herou CTO and co-founder Tailsweep AB +46702561312 [email protected] http://www.tailsweep.com/
