The internal solr API will not use the distributed queries generated from coverage plans. You will only get results from the local node. Theoretically, you could aggregate and de-duplicate across multiple nodes, but that would result in more data movement than necessary, as it does not leverage the "r=1" behavior you get from cover sets and which you get automatically from the Riak HTTP API.
-Fred > On Oct 17, 2016, at 10:17 AM, AJAX DoneBy Jack <ajaxd...@gmail.com> wrote: > > Hi Magnus, > > So you suggest to use http API right? That day I were thinking query the > internal Solr http by sending request. Could you advise what's the difference > between Riak http API and internal Solr http API? What's the pros and cons to > use them? > > Thanks, > Ajax > > On Monday, 17 October 2016, Magnus Kessler <mkess...@basho.com > <mailto:mkess...@basho.com>> wrote: > On 14 October 2016 at 20:18, AJAX DoneBy Jack <ajaxd...@gmail.com > <javascript:_e(%7B%7D,'cvml','ajaxd...@gmail.com');>> wrote: > Hello Basho, > > I am very new on Riak Search, I know can add {!dismax}before query string to > use it, but don't know how to specify qf or other dismax related parameters > in Riak Java Client. Could you advise? > > Thanks, > Ajax > > Hi Ajax, > > The Riak Java Client, as most other Riak clients, uses the Protocol Buffer > API to communicate with Riak. Yokozuna's implementation of the Protocol > Buffer API allows only for a small set of query parameters [0], which have > been chosen to support the standard query parser. As such, there is currently > no easy way to use the extended set of query parameters through the java api. > > However, you may have better luck if you talk directly to HTTP API, exposed > at http://<node>:8098/search/query/<index_name>. This will accept all queries > supported by Solr 4.7. Please be aware, though, that some query results that > require accumulating data from all Solr nodes (such as stats queries), may > not work as expected. Yokozuna constructs a new coverage query very > frequently, and the actual results returned depend on which nodes are chosen > in this query. > > Kind Regards, > > Magnus > > [0]: > https://github.com/basho/yokozuna/blob/develop/src/yz_pb_search.erl#L144-L150 > <https://github.com/basho/yokozuna/blob/develop/src/yz_pb_search.erl#L144-L150> > > > > _______________________________________________ > riak-users mailing list > riak-users@lists.basho.com > <javascript:_e(%7B%7D,'cvml','riak-users@lists.basho.com');> > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com > <http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com> > > > > > -- > Magnus Kessler > Client Services Engineer > Basho Technologies Limited > > Registered Office - 8 Lincoln’s Inn Fields London WC2A 3BP Reg 07970431 > _______________________________________________ > riak-users mailing list > riak-users@lists.basho.com > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
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