I would suggest that an RF of at most 5 per DC for auth is plenty. And least likely to cause problems in other ways.
> On Nov 30, 2016, at 7:08 PM, sankalp kohli <kohlisank...@gmail.com> wrote: > > If we think that having this strategy can be misused, we can always have a > check to allow this only on Auth keyspace. > >> On Wed, Nov 30, 2016 at 4:19 PM, Brandon Williams <dri...@gmail.com> wrote: >> >> Relevant: https://issues.apache.org/jira/browse/CASSANDRA-12912 >> >>> On Wed, Nov 30, 2016 at 12:32 PM, Jeff Jirsa <jji...@apache.org> wrote: >>> >>> >>> >>>> On 2016-11-30 10:02 (-0800), Ben Bromhead <b...@instaclustr.com> wrote: >>>> Also apparently the Everywhere Strategy is a bad idea (tm) according to >>>> comments in https://issues.apache.org/jira/browse/CASSANDRA-12629 but >> no >>>> reason has been given why... >>>> >>> >>> It's touched on in that thread, but it's REALLY EASY to misuse, and most >>> people who want it are probably going to shoot themselves in the foot >> with >>> it. >>> >>> The one example Jeremiah gave is admin logins with system_auth - requires >>> QUORUM, quorum on a large cluster is almost impossible to satisfy like >> that >>> (imagine a single digest mismatch triggering a blocking read repair on a >>> hundred nodes, and what that does to the various thread pools). >>> >>> >>> >>> >>
