https://github.com/basho/riak_wiki/pull/139
On Tue, Jul 26, 2011 at 9:35 AM, Sean Cribbs <[email protected]> wrote: > Bob is right, it's a simple typo. Please send a pull request or open an > issue on the tracker. https://github.com/basho/riak_wiki/issues > > On Mon, Jul 25, 2011 at 6:13 PM, Bob Ippolito <[email protected]> wrote: >> >> It sounds like there is a typo, I would assume that it should be "the >> input of later evaluations will include the output of earlier >> evaluations". It's not really a reduction otherwise. >> >> On Mon, Jul 25, 2011 at 3:03 PM, Brian Rowe <[email protected]> wrote: >> > Hello, >> > >> > I see the following on the Basho wiki for Riak [1]: >> > >> > The important thing to understand is that the function defining the >> > reduce phase may be evaluated multiple times, and the input of later >> > evaluations will include the input of earlier evaluations. >> > For example, a reduce phase may implement the set-union function. In >> > that case, the first set of inputs might be [1,2,2,3], and the output >> > would be [1,2,3]. When the phase receives more inputs, say [3,4,5], >> > the function will be called with the concatentation of the two lists: >> > [1,2,3,4,5]. >> > >> > This description isn't clear to me as the behavior I'm seeing is that >> > the _output_ of earlier evaluations is included as input to later >> > evaluations. Unfortunately, the example yields the same results >> > irrespective of whether it is the input or the output of the first >> > evaluation, so it doesn't clear anything up. >> > >> > Thanks, >> > Brian >> > >> > >> > [1] http://wiki.basho.com/MapReduce.html >> > >> > _______________________________________________ >> > riak-users mailing list >> > [email protected] >> > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com >> > >> >> _______________________________________________ >> riak-users mailing list >> [email protected] >> http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com > > > > -- > Sean Cribbs <[email protected]> > Developer Advocate > Basho Technologies, Inc. > http://www.basho.com/ > _______________________________________________ riak-users mailing list [email protected] http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
