Anderson I would say that this is highly unlikely, but you would need to pay attention to how they are generated, this would be a good place to start:
http://en.wikipedia.org/wiki/Universally_unique_identifier Cheers François On Feb 8, 2012, at 1:31 PM, Anderson vasconcelos wrote: > HI all > > If i use the UUID like a uniqueId in the future if i break my index in > shards, i will have problems? The UUID generation could generate the same > UUID in differents machines? > > Thanks