Hi Alex, You are right, that will solve the problem. but unfortunately i won't be able to meet my sla with write each quorum . I am using local quorum for both read and write. Any other way ?
On Thu, Jan 16, 2020, 5:45 PM Oleksandr Shulgin < oleksandr.shul...@zalando.de> wrote: > On Thu, Jan 16, 2020 at 1:04 PM Laxmikant Upadhyay < > laxmikant....@gmail.com> wrote: > >> Hi, >> What I meant fromActive/standby model is that even though data is being >> replicated (asynchronously) to standby DC , client will only access the >> data from active DC (let's say using local_quorum). >> >> you have "to switch" your clients without any issues since your writes >> are replicated on all DC. >> --> that is not true because there is a chance of mutation drop. (Hints, >> read repair may help to some extent but data consistency is not guaranteed >> unless you run anti- entropy repair ) >> > > What are the consistency levels used by your application(s)? > > E.g. for strong consistency across multiple DCs you could use EACH_QUORUM > for the write requests and LOCAL_QUORUM for reads, with a replication > factor >= 3 per DC. > > -- > Alex > >
