Hi Kai.
It is very interesting. Can you please explain in more details your
Idea?
What will be a key in a map phase?
Suppose we have event at 10:07. How would you emit this to the multiple
buckets?
Thanks
Oleg.
On Mon, Jan 28, 2013 at 3:17 PM, Kai Voigt <[email protected]> wrote:
> Quick idea:
>
> since each of your events will go into several buckets, you could use
> map() to emit each item multiple times for each bucket.
>
> Am 28.01.2013 um 13:56 schrieb Oleg Ruchovets <[email protected]>:
>
> > Hi ,
> > I have such row data structure:
> >
> > event_id | time
> > ==============
> > event1 | 10:07
> > event2 | 10:10
> > event3 | 10:12
> >
> > event4 | 10:20
> > event5 | 10:23
> > event6 | 10:25
>
> map(event1,10:07) would emit (10:04,event1), (10:05,event1), ...,
> (10:10,event1) and so on.
>
> In reduce(), all your desired events would meet for the same minute.
>
> Kai
>
> --
> Kai Voigt
> [email protected]
>
>
>
>
>
