Only way I know is in elassandra <https://github.com/vroyer/elassandra>. You spin nodes in dc1 as elassandra (having data + indexes) and in dc2 as cassandra (having only data).
On Sun, Sep 18, 2016 at 5:43 PM, Bhuvan Rawal <bhu1ra...@gmail.com> wrote: > Hi, > > Is it possible to have secondary indices (SASI or native ones) defined on > a table restricted to a particular DC? For instance it is very much > possible in mysql to have a parent server on which writes are being done > without any indices (other than the required ones), and to have indices on > replica db's, this helps the parent database to be lightweight and free > from building secondary index on every write. > > For analytics & auditing purposes it is essential to serve different > access patterns than that modeled from a partition key fetch perspective, > although a limited reads are needed by users but if enabled cluster wide it > will require index write for every row written on that table on every > single node on every DC even the one which may be serving read operations. > > What could be the potential means to solve this problem inside of > cassandra (Not having to ship off the data into elasticsearch etc). > > Best Regards, > Bhuvan >
