Lucene is a pretty low-level search library. It has no concept of clustering etc. etc. What ElasticSearch built on top is far from trivial. Furthermore, Elas

Lucene is a pretty low-level search library. It has no concept of clustering etc. etc. What ElasticSearch built on top is far from trivial. Furthermore, ElasticSearch pays a number of people to contribute back to the Lucene project. As far as I know AWS hasn't contributed any code of note back to ElasticSearch or Lucene.