# OpenSearch

> A search engine in the Lucene family, in the same line of study as Solr, including what has to remain true in the top results when an index moves.

Broader subject: [Search engines](https://oppority.com/topics/search-engines.md).

## Work

- [A move that kept the answers](https://oppority.com/work/platform-move.md): A production move from self-managed Apache Solr to managed OpenSearch, checked by whether the top results still agreed.