On Wed, Apr 7, 2010 at 3:13 PM, Paul Prescod <p...@prescod.net> wrote: > > Also: Dominic Williams says that one of the advantages of the > OrderPreservingPartitioner is: "3. If you screw up, you can scan over > your data to recover/delete orphaned keys" > > Does anyone know off the top of their head what he might have meant by that? > >
If you are using RP and your own, secondary indices, you have no way to access rows except by get on the key. Thus, if you lose or corrupt your indices, you may no longer know all your row keys. With OPP and range queries, you can discover them. Cold comfort, imo. b
