This has been proposed a few times, there are some good use cases for it, and there is no current mechanism for it, but it's been discussed as a possible enhancement.
Adrian On Wed, Sep 14, 2011 at 11:06 AM, Todd Burruss <bburr...@expedia.com> wrote: > Has anyone done any work on what I'll call "selective replication" between > DCs? I want to use Cassandra to replicate data to another virtual DC (for > analytical purposes), but only "inserts", not "deletes". > Picture having two data centers, DC1 for OLTP of short lived data (say 90 > day window) and DC2 for OLAP (years of data). DC2 would probably be a Brisk > setup. > In this scenario, clients would get/insert/delete from DC1 (the OLTP system) > and DC1 would replicate inserts only to DC2 (the OLAP system) for analytics. > I don't have any experience (yet) with multi-dc replication, but I don't > think this is possible. > Thoughts?
