Update: The challenge of enabling Elasticsearch on GitLab.com

What this post added

This post details the progress and challenges in enabling Elasticsearch for advanced search on GitLab.com. Key contributions include implementing selective indexing with per-project and per-group controls, fixing pre-existing bugs and regressions related to Elasticsearch usage and performance, and improving the administration experience by automating backfill tasks and allowing configuration of index parameters. It also highlights ongoing work to address scaling issues and improve the management of the Elasticsearch schema and search result quality.