Ruby on Rails versus Apache Solr

I need a much faster search engine at my website than MySQL. Therefore I am checking Ruby on Rails and Apache Solr. Can anybody tell me the difference of these 2 databases? What about the pros and cons of using these databases. I checked once Apache Solr and found that its really very fast also with huge data sets but it is seldom and therefore it is difficult to hire good personnel. It is a quite complex topic and it needs experts who can handle this correctly. The fine-tuning is even after few years a great problem. Doe anybody have experience with Ruby on Rails

No answers yet