Hi Russell, It is really helpful, thank you a lot. We are suffering from solr crash now, are considering to switch to 2i.
Br, Alex 2017-02-06 16:53 GMT+08:00 Russell Brown <[email protected]>: > It’s worth noting that secondary indexes (2i) has some other advantages > over solr search. If you _can_ model your queries in 2i then I'd recommend > it. > > Secondary indexes have a richer API than is currently documented, if you > look at https://docs.basho.com/riak/1.4.7/dev/using/2i/ you’ll see that > documents a feature that allows the index terms to be filtered via reg ex. > There is also the feature that can return the actual riak objects for a > $keys index search, > You can pack the index terms with data and return the terms in a query so > that you don’t need a further object fetch (see return_terms in docs.) > Secondary indexes are written atomically with the object they index. > Operationally they don’t require you run a JVM and Solr alongside your > riak nodes. > > You have the tools with basho_bench to answer the question about > performance and overhead for your workload. I suspect for “overhead” 2i > wins, as there is no JVM-per-node. > > Modelling for 2i is perhaps harder, in the classical nosql way, you have > to do more work upfront when designing your querying. > > I hope that helps a little. I worked quite a lot on 2i and never really > understood why riak-search was seen as a replacment, imo they’re > complementary, and you pick the one that best fits. > > Cheers > > Russell > > On 2 Feb 2017, at 09:43, Alex Feng <[email protected]> wrote: > > > Hello Riak-users, > > > > I am currently using Riak search to do some queries, since my queries > are very simple, it should be fulfilled by secondary indexes as well. > > So, my question is which one has better performance and less overhead, > let's say both can fulfill the query requirement. > > > > Many thanks in advance. > > > > Br, > > Alex > > _______________________________________________ > > riak-users mailing list > > [email protected] > > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com > >
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