I would like to allow visitors to a site to search for posts based on various attributes (categories, tags, custom fields).
I have tried using Solr, but this doesn't appear to work.
I tried using the MySolrServer plugins for a local instance of Solr and a hosted instance, but the plugin doesn't appear to work.
I also tried using Solr for Wordpress, but the plugin wouldn't enable.
I don't want to use something like Taxonomy Drill-down.
Bearing those points in mind, how can I now try to implement true faceted search that will enable site visitors to search for posts based on attributes?