Just to back up and think about if solr/lucene realtime updating is what I want to begin with..
Would this be something that a twitter type system might use to be more scalable and fast? Let's just say that I have a site with as much message traffic as twitter and I want to be able to update and search fast/realtime. Would this be the path you would initially send me? For example, do you know of a system out there that does memcached type fast caching and lookup but has the ability to look them up with sorting and filtering? Thanks
