I can't comment on your storage stuff (we've had to develop our own to fit our specific needs), but elastic search is a good option to start out with for search

I can't comment on your storage stuff (we've had to develop our own to fit our specific needs), but elastic search is a good option to start out with for search. You can check out the Elasticsearch case studies here: http://www.elasticsearch.org/case-study/ http://www.elasticsearch.org/case-study/