Cool. Great :)
On Tue, Jun 22, 2010 at 07:47, Owen O'Malley <[email protected]> wrote: > > On Jun 21, 2010, at 5:14 PM, Torsten Curdt wrote: > >> I was just wondering the other day: >> >> What if the the values for a key that get passed into the reducer do >> not fit into memory? >> After all a reducer should get all values per key from the whole job. >> Is the iterator disk backed? > > There is no assumption that all of the values fit into memory. The iterator > is really the > result of a merge sort from disk and/or memory. > > -- Owen= >
