Unless I am wrong, sharding across two cores is done over HTTP and has the limitations as listed at: http://wiki.apache.org/solr/DistributedSearch While MultiSearcher is just a decorator over IndexSearcher - therefore the limitations there would (?) not apply and if indexes reside locally, would be also faster
Cheers, roman On Sat, Feb 5, 2011 at 10:02 PM, Bill Bell <billnb...@gmail.com> wrote: > Why not just use sharding across the 2 cores? > > On 2/5/11 8:49 AM, "Roman Chyla" <roman.ch...@gmail.com> wrote: > >>Dear Solr experts, >> >>Could you recommend some strategies or perhaps tell me if I approach >>my problem from a wrong side? I was hoping to use MultiSearcher to >>search across multiple indexes in Solr, but there is no such a thing >>and MultiSearcher was removed according to this post: >>http://osdir.com/ml/solr-user.lucene.apache.org/2011-01/msg00250.html >> >>I though I had two use cases: >> >>1. maintenance - I wanted to build two separate indexes, one for >>fulltext and one for metadata (the docs have the unique ids) - >>indexing them separately would make things much simpler >>2. ability to switch indexes at search time (ie. for testing purposes >>- one fulltext index could be built by Solr standard mechanism, the >>other by a rather different process - independent instance of lucene) >> >>I think the recommended approach is to use the Distributed search - I >>found a nice solution here: >>http://stackoverflow.com/questions/2139030/search-multiple-solr-cores-and- >>return-one-result-set >>- however it seems to me, that data are sent over HTTP (5M from one >>core, and 5M from the other core being merged by the 3rd solr core?) >>and I would like to do it only for local indexes and without the >>network overhead. >> >>Could you please shed some light if there already exist an optimal >>solution to my use cases? And if not, whether I could just try to >>build a new SolrQuerySearcher that is extending lucene MultiSearcher >>instead of IndexSearch - or you think there are some deeply rooted >>problems there and the MultiSearch-er cannot work inside Solr? >> >>Thank you, >> >> Roman > > >
