On Tue, Jun 3, 2014 at 9:03 PM, Matthew Allen <matthew.j.al...@gmail.com> wrote:
> Thanks Robert, this makes perfect sense. Do you know if CASSANDRA-6961 > will be ported to 1.2.x ? > I just asked driftx, he said "not gonna happen." > And apologies if these appear to be dumb questions, but is a repair more > suitable than a rebuild because the rebuild only contacts 1 replica (per > range), which may itself contain stale data ? > Exactly that. https://issues.apache.org/jira/browse/CASSANDRA-2434 Discusses related issues in quite some detail. The tl;dr is that until 2434 is resolved, streams do not necessarily come from the node departing the range, and therefore the "unique replica count" is decreased by changing cluster topology. =Rob