As part of the Toolforge elasticsearch migration process, the similarity tool will need to be reconfigured for the new version 7 cluster before 2020-04-06..
- Migrate existing elasticsearch credentials cloud-services-team
- Import existing indices (can reimport if needed) cloud-services-team
- Update tool's connection string to http://elasticsearch.svc.tools.eqiad1.wikimedia.cloud/
- Confirm document type changes (see https://wikitech.wikimedia.org/wiki/News/Toolforge_Elasticsearch_v7_migration#Deprecated_index_document_types)
More information on what's changed can be found at https://wikitech.wikimedia.org/wiki/News/Toolforge_Elasticsearch_migration