It depends on how much data you have. A single node can store a lot of data, but the more data you have the longer a repair or node replacement will take. How long can you tolerate for a full repair or node replacement?
Generally, RF=3 is both sufficient and recommended. -- Jack Krupansky On Fri, Mar 25, 2016 at 11:40 AM, Rakesh Kumar <rakeshkumar46...@gmail.com> wrote: > We have two data centers. Our requirement is simple > > Assuming that we have equal number of nodes in each DC we should be able > to run with the loss of one DC and loss of at most one node in the > surviving DC. Can this be achieved with 6 nodes (3 in each). Obviously for > that all data must be available in any two nodes. Any pointers on > replication factor. > > Thanks > > -- > Sent from mobile.
