Usage Statistics powered by Elastic Search

We have decided to replace the backend implementation of Usage Statistics for DSpace to give us a system that allowed for more flexible queries so that we could more easily ask for answers to our questions about how our repository was being used, and what was being used. The end result of looking deeper into the default SOLR statistics, and the available alternatives lead us to building a new statistics system powered by Elastic Search, and we are quite pleased with the results. The new system is fast enough for our needs, and we contributed it to DSpace 3.0.