On Thu, Feb 21, 2008 at 5:34 PM, Ted Dunning <[EMAIL PROTECTED]> wrote: > > Use another job step to get the sort done. >
but isn't the output of reduce step sorted ? Also can I specify that sort be done in reverse order ? > > > On 2/21/08 5:11 PM, "Tarandeep Singh" <[EMAIL PROTECTED]> wrote: > > > On Thu, Feb 21, 2008 at 3:46 PM, Tarandeep Singh <[EMAIL PROTECTED]> wrote: > >> hi, > >> > >> Can I sort the output of reducer based on the value instead of key. > >> Also can I specify that the output should be sorted in decreasing order ? > >> > >> Mapper output - > >> <aWord, 1> > >> > >> Reducer gets- > >> <aWord, (1,1,...)> > >> > >> and outputs - > >> <aWord, count> > >> > >> e.g abc 10 > >> xyz 100 > >> > >> I want the output to be sorted based on the value and that too in > >> decreasing order - > >> xyz 100 > >> abc 10 > >> > >> Any suggestions ? > >> > > > > I set the output format to Text and then converted the count into text > > and wrote this as key and the aWord as value. I was expecting an > > output sorted on the count now but it didn't work that way ? Could > > anyone explain why so ? > > > > reducer output - > > <000001, abc> > > <000005, xyz> > > <000002, pqr> > > > > thanks, > > Taran > > > > > >> thanks, > >> Taran > >> > >
