They are very very close. The differences are minute at this point. Unless you are doing some heavy relational algebra, it will be hard to distinguish real worl

They are very very close. The differences are minute at this point. Unless you are doing some heavy relational algebra, it will be hard to distinguish real world results for simple queries. In the end I chose Solr because it comes with 'ecosystem' of semi-related projects that you can pull on (spark, ambari, etc etc). On a sidenote, I'm personally more comfortable with forkable sourcebases, than singular companies with paid plugins. I've been too long in this industry and have seen all kinds of dirty tricks pulled off.