We are currently making integration between Elasticsearch (http://www.elasticsearch.org) and Drupal. (https://drupal.org/project/elasticsearch_connector)
Elasticsearch is getting more and more attention as something on top of Lucene but more flexible than Solr. You can see if interested videos of elastic search usages here: http://www.elasticsearch.org/videos/
In the 30min we (me and a colleague (https://drupal.org/user/417078), the contributor of the module) will present:
- What is elastic search
- What is the difference between Elasticsearch and Solr
- What is currently made as integration into Drupal and our ideas and road map for going forward.
The presentation will be in English as our German is still a bit rusty :)