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/
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