Is that in absolute install number (see my other thread's comment), in % of growth number (from 0-base for ES as of only a several years ago), or the excitement

Is that in absolute install number (see my other thread's comment), in % of growth number (from 0-base for ES as of only a several years ago), or the excitement for early features of ElasticSearch that have been disabled or rolled-back over the last couple of years. I am somewhat biased because I am a - recent - Solr committer. But I also did try to do a very balanced comparison presentation two years ago: http://www.slideshare.net/arafalov/solr-vs-elasticsearch-case-by-case http://www.slideshare.net/arafalov/solr-vs-elasticsearch-cas... (kind of popular, 49k views...). Solr - still - is more flexible than Elasticsearch by several degrees of magnitude. But Elasticsearch has a better vertical integration story, especially for analytics. And size (it IS small), because it does not ship OOTB with documentation (online), full examples (any?), Admin UI (plugin), rich-text extraction (plugin), data import mechanism (with rivers gone), etc. If you don't need those, the choice is much more close. And many people do not need those. The problem is that most of the people don't know what they need and don't need when they do the evaluation, so they look at the most surface parameters. Solr 6 has good startup scripts, (overly) comprehensive examples, REST APIs, well maintained 700 pages manual, etc. Some of these features are a bit harder to discover due to legacy information also being very visible. But it is there.