Luckily there are faster and smaller alternatives in Rust for the ElasticSearch - Toshi[1], Meili[2] and Sonic[3]. In the age of Rust there is no need to use JVMs overhead.

[1] https://github.com/toshi-search/Toshi

[2] https://github.com/meilisearch/MeiliSearch

[3] https://github.com/valeriansaliou/sonic

This is actually very interesting project. Do we have some benchmark that sonic works on huge scale with lot of data?