: Solr is a new open-source search server that's based on Lucene, and : has XML/HTTP interfaces for updating and querying, declarative : specification of analyzers and field types via a schema, extensive : caching, replication, and a web admin interface.
FYI, last year when I anounced that CNET was using Lucene, some people expressed interest (off list) in knowing more about the mechanism used to manage updates to the index, and cache the individual Filters associated with each of the options... http://www.nabble.com/Announcement%3A-Lucene-powering-CNET.com-Product-Category-Listings-p748420.html Solr is that mechanism. The pages use a custom Solr plugin to determine all of the individual Queries to execute based on the category, but Solr's built in Filter caching and DocSet methods are what make it possible to efficiently compute all of the Attribute Filter counts. (in Solr a DocSet is an abstraction representing all documents that match a Query or Filter, without any scoring or sorting -- like a BitSet returned by a Filter, except that Solr can optimize small sets into a smaller representation) : For more information, see Solr's home page at : http://incubator.apache.org/solr/ -Hoss --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]