On Jun 9, 2010, at 1:17 AM, Oleg Ruchovets wrote:
So is that case possible or every and every reducer has unique output key?
The partitioner controls which reduce a given key is sent to. If the partitioner is non-deterministic, the key can end up going to different reduces. If you are using the default hash partitioner, that would imply that you didn't define a proper hash code for your key.
-- Owen
