So are you suggesting that it's not advisable to use even KV backed by LevelDB in a TS instance, or is it more that performance is unknown and therefore not guaranteed / supported? If the data is otherwise "safe", this may still be a better option for us than running separate clusters.
Are others who need both a general KV store and the TS functionality running multiple clusters to handle this use case? Thanks for the quick reply! Damion > On Oct 12, 2016, at 11:53 AM, John Daily <jda...@basho.com> wrote: > > We have not done any work to support the multi-backend, hence the error > you’re seeing. TS depends exclusively on leveldb. > > We’re not recommending the use of KV functionality in the TS product yet, > because the latter is still changing rapidly and we will need to go back and > fix some basic KV mechanisms. We’re also not yet sure of the performance > characteristics if both KV and TS are in use under heavy load. > > In short: I apologize, but we’re not really ready to support your use case > yet. > > -John > >> On Oct 12, 2016, at 12:17 PM, Junk, Damion A <jun...@purdue.edu> wrote: >> >> Hello all - >> >> I was wondering if it is possible to use RiakTS with a multi-backend >> configuration. >> >> I have an existing set of applications using RiakKV and Bitcask, but we're >> now wanting to start using some of the TS features on a new project. Setting >> up the multi-backend configuration with TS seems to work fine (our app >> existing app reads the Bitcask buckets and SOLR indices without issue), and >> we can even create a TS schema. We have LevelDB as the default backend, so >> presumably this is what was used during the "create table" query. >> >> When trying to query the TS table, we're seeing: >> >> 2016-10-12 10:02:41.372 [error] <0.1410.0> gen_fsm <0.1410.0> in state >> active terminated with reason: call to undefined function >> riak_kv_multi_backend:range_scan/4 from riak_kv_vnode:list/7 line 1875 >> >> And then in the client code, no return until finally an Exception (Riak Java >> Client). >> >> >> Thanks for any assistance! >> >> >> Damion >> _______________________________________________ >> riak-users mailing list >> riak-users@lists.basho.com >> http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com > _______________________________________________ riak-users mailing list riak-users@lists.basho.com http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
