On Thu, Jun 7, 2012 at 5:41 AM, aaron morton <aa...@thelastpickle.com>wrote:
> Sounds good. Do you want to make the change ? > Done. > > Thanks for taking the time. > Thanks for giving the answer! Jim > > ----------------- > Aaron Morton > Freelance Developer > @aaronmorton > http://www.thelastpickle.com > > On 7/06/2012, at 7:54 AM, Jim Ancona wrote: > > On Tue, Jun 5, 2012 at 4:30 PM, Jim Ancona <j...@anconafamily.com> wrote: > >> It might be a good idea for the documentation to reflect the tradeoffs >> more clearly. > > > Here's a proposed addition to the Secondary Index FAQ at > http://wiki.apache.org/cassandra/SecondaryIndexes > > Q: How does choice of Consistency Level affect cluster availability when > using secondary indexes? > A: Because secondary indexes are distributed, you must have CL level nodes > available for *all* token ranges in the cluster in order to complete a > query. For example, with RF = 3, when two out of three consecutive nodes in > the ring are unavailable, *all* secondary index queries at CL = QUORUM > will fail, however secondary index queries at CL = ONE will succeed. This > is true regardless of cluster size. > > Comments? > > Jim > > >
