On Tue, Aug 30, 2016 at 3:11 PM, John Sanda <jsanda(a)redhat.com> wrote:
I like the idea of aggregated availabilities, but I don’t know that
it can
easily be simplified to up/down. Let’s say we have 3 Cassandra nodes
deployed with replication_factor = 1. If one node goes down we are at 66%
availability.
You're right, it would be even better to keep a "up ratio" information for
each point. And it will still be easily reduced to a binary "all UP" or
"any UP" by the client if desired.