yes, you can use distributed search across shards with different schemas as long as the query only references overlapping fields, i usually test adding new fields or tokenizers on one shard and deploy only after i verified its working properly
On Thu, Jun 17, 2010 at 1:10 PM, Markus Jelsma <markus.jel...@buyways.nl> wrote: > Hi, > > > > Check out Solr sharding [1] capabilities. I never tested it with different > schema's but if each node is queried with fields that it supports, it should > return useful results. > > > > [1]: http://wiki.apache.org/solr/DistributedSearch > > > > Cheers. > > -----Original message----- > From: Sascha Szott <sz...@zib.de> > Sent: Thu 17-06-2010 19:44 > To: solr-user@lucene.apache.org; > Subject: federated / meta search > > Hi folks, > > if I'm seeing it right Solr currently does not provide any support for > federated / meta searching. Therefore, I'd like to know if anyone has > already put efforts into this direction? Moreover, is federated / meta > search considered a scenario Solr should be able to deal with at all or > is it (far) beyond the scope of Solr? > > To be more precise, I'll give you a short explanation of my > requirements. Assume, there are a couple of Solr instances running at > different places. The documents stored within those instances are all > from the same domain (bibliographic records), but it can not be ensured > that the schema definitions conform to 100%. But lets say, there are at > least some index fields that are present in all instances (fields with > the same name and type definition). Now, I'd like to perform a search on > all instances at the same time (with the restriction that the query > contains only those fields that overlap among the different schemas) and > combine the results in a reasonable way by utilizing the score > information associated with each hit. Please note, that due to legal > issues it is not feasible to build a single index that integrates the > documents of all Solr instances under consideration. > > Thanks in advance, > Sascha > >
