This is not possible. The framework always creates reduce tasks from 0 - num_reduces.
> -----Original Message----- > From: Rui Shi [mailto:[EMAIL PROTECTED] > Sent: Saturday, December 15, 2007 7:34 AM > To: hadoop-user@lucene.apache.org > Subject: How can the reducer be invoked lazily? > > Hi, > > How can we specify so that the reducers can be invoked > lazily? For instance, I know there are no partitions in the > range of 200-300. How can I let the hadoop know that no need > to invoke reduce tasks for those partitions? > > Thanks, > > Rui > > > > > ______________________________________________________________ > ______________________ > Be a better friend, newshound, and > know-it-all with Yahoo! Mobile. Try it now. > http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ >
