Are you referring to the facet.limit parameter? If it is set to N, does that mean Solr only has to process N values, or that Solr will still process all the values but only return the top N ones?
--- On Fri, 3/19/10, Smiley, David W. <dsmi...@mitre.org> wrote: From: Smiley, David W. <dsmi...@mitre.org> Subject: Re: How many facet values are too many? To: "solr-user@lucene.apache.org" <solr-user@lucene.apache.org> Date: Friday, March 19, 2010, 9:07 AM On Mar 18, 2010, at 10:53 PM, Andy wrote: > My understanding is that too many facet values will decrease performance > > How many is too many? Are there any rules of thumb for this? > > 2 related questions: > > - I expect a facet field to have many values (values are user generated), any > thing I can do to minimize the performance impact? > > - Any way to tell Solr to just at the top N values, kinda like the LIMIT > clause in SQL? > > Thanks Not sure on the "how many is too many" question but I wouldn't be concerned; Solr does faceting very well with highly optimized code. The latter question -- absolutely. Standard stuff. Check out the wiki or buy my book. ~ David Smiley Author: http://www.packtpub.com/solr-1-4-enterprise-search-server/
