Now that Elasticsearch Statistics are deprecated (
DS-2897), they should be removed from the main DSpace release.
We are aware that there are features (namely reports / visualizations) that are unique to the Elasticsearch Statistics feature, and we plan to migrate those over to the Solr Statistics engine.
The path towards removal would be as follows:
1. Deprecate Elasticsearch Stats in 6.0 (already completed, see
2. Work to migrate unique statistical reports/visualizations from Elasticsearch to the Solr Statistics engine.
3. Provide tooling to migrate Elasticsearch Stats to Solr Stats
4. Remove Elasticsearch Stats in 7.0, in favor of the Solr Stats engine.
Until we can migrate users off of Elasticsearch Stats, we will not remove it entirely. However, as it is now deprecated, we will not provide any additional features/improvements to the Elasticsearch Stats engine (bug fixes may still be provided if/when deemed necessary).